Bush Hog Single-Spindle Rotary Cutter El manual del propietario

Marca: Bush Hog

Modelo: Single-Spindle Rotary Cutter

Categoría: Cortadoras de césped

Tipo: El manual del propietario

BH20

Series

BH25, BH26, BH27

Rotary Mower

Published 01/17 Part Number 50070397

OPERATOR’S MANUAL

BUSH HOG

2501 Griffin Ave.

Selma, Al 36703

334-874-2700

www.bushhog.com

Revised 10/18

D813_2

D813_1

In order to reduce accidents and enhance the safe operation of mowers, Alamo Group Ag Division, in cooperation

with other industry manufacturers has developed the AEM/FEMA Industrial and Agricultural Mower Safety

Practices video and guide book.

The video will familiarize and instruct mower-tractor operators in safe practices when using industrial and

agricultural mowing equipment. It is important that Every Mower Operator

be educated in the operation of their

mowing equipment and be able to recognize the potential hazards that can occur while operating a mower. This

video, along with the mower operator’s manual and the warning messages on the mower, will significantly assist in

this important education.

Your Authorized Bush Hog Dealer may have shown this video and presented you a DVD Video when you

purchased your mower. If you or any mower operator have not seen this video, Watch the Video, Read this

Operator’s Manual, and Complete the Video Guidebook before operating your new mower. If you do not

understand any of the instructions included in the video or operator’s manual or if you have any questions

concerning safety of operation, contact your supervisor, dealer or Bush Hog.

If you would like a VHS video tape of the video, please mail [email protected] or Fax AEM VHS Video

at (830) 372-9529 or mail in a completed copy of the form on the back of this page to AEM VHS Video 1502 E

Walnut Street, Seguin, TX 78155. and request the VHS video version. Please include your name, mailing address,

mower model and serial number.

Every operator should be trained for each piece of equipment (Tractor and Mower), understand the intended use,

and the potential hazards before operating the equipment.

The information and material listed above along with this Operator’s Manual can assist you in meeting the OSHA

requirement for annual operator training.

OSHA TRAINING REQUIREMENTS

The following training requirements have been taken from Title 29, Code of Federal Regulations Part

1928.57 (a) (6). www.osha.gov

Operator instructions. At the time of initial assignment and at least annually thereafter the employer shall instruct

every employee who operates an agricultural tractor and implements in the safe operating practices and servicing

of equipment with which they are or will be involved, and of any other practices dictated by the work environment.

To the Owner/Operator/Dealer

This Operator's Manual is an integral part of the safe operation of this machine and must be maintained with the

implement at all times. A Manual canister is provided on the implement where this manual can be properly stored.

If you lose or damage this manual a free replacement manual can be obtained from an authorized Bush Hog dealer

or by down loading the manual from the Bush Hog website www.bushhog.com

BEFORE YOU START! READ, UNDERSTAND, and FOLLOW the information provided in this manual, the AEM

Mower Safety manual and the tractor operator's manual carefully to learn how to operate and service your machine

properly. Failure to do so could result in personal injury to you and bystanders. All implements with moving parts

are potentially hazardous. Every effort has been made to ensure that the machine is safe but operators must avoid

engaging in unsafe practices and follow the written instructions provided. The manufacturer has designed this

implement to be used with all its safety equipment properly attached to minimize the chance of accidents.

SAFETY FIRST. Completely read and understand the safety section of this manual before operating this

equipment. Do not allow anyone to operate this equipment who has not fully read and understood this manual.

Contact your Dealer to explain any instructions that you do not fully understand.

The care you give your Bush Hog Implement will greatly determine your satisfaction with its performance and its

service life. Carefully read and follow the instructions in this manual to provide you with a thorough understanding

of your new implement and its intended use and service requirements.

All references made in this manual to right, left, front, rear, top or bottom are as viewed facing the direction of

forward travel with the implement properly attached to the tractor.

Replacement Parts information is located in a separate Parts Manual. Bush Hog mowers use balanced and

matched system components for blade carriers, blades, cuttershafts, knives, knife hangers, rollers, drivetrain

components, and bearings. These parts are made and tested to Bush Hog specifications. Non-genuine “will fit”

parts do not consistently meet these specifications. The use of “will fit” parts may reduce mower performance, void

warranties, and present a safety hazard. Use genuine Bush Hog mower parts for economy and safety.

For future reference, record your Bush Hog product model number and serial number.

Dealer Telephone Model Number

Owner Purchase Date: Serial Number

Bush Hog will provide

one (1) AEM Mower Safety Practices Video

Please Send Me: VHS Format – AEM/FEMA Mower Operator Safety Video

DVD Format – AEM/FEMA Mower Operator Safety Video

Mower Operator’s Manual

AEM Mower Operator’s Safety Manual

Requester Name:________________________________________Phone:__________________________

Requester Address:___________________________________________________

City:_________________________________

State:________________________________

Zip Code:____________________________

Mower Model:____________________________Serial Number:____________________________

Date Purchased:___________________________Dealer Salesperson:_________________________

Dealership Name:_________________________ Dealership Location:________________________

Mail to:

AEM Video Services

1502 E. Walnut Street

Seguin, TX 78155

Or Fax to:

(830) 372-9529

Or Email to:

AEMV[email protected]

DEALER to CUSTOMER Pre-Delivery/ Operation Instructions

Dealer should inform the Purchaser of this product of Warranty terms, provisions, and procedures that are

applicable.Dealer should inform Purchaser to review the contents of the Operator’s Manual including safety

equipment, safe operation, and maintenance, to review the Safety Signs on the implement (and tractor if possible),

and of Purchaser’s responsibility to train his/her operators’s in safe operation procedures.

• IMPLEMENTS: I have explained that Deflectors, Chain Guards, or Solid Skirts must be installed and main-

tained in good repair.

• DRIVELINES: I have made certain that all driveline, gearbox, and other shields are in good repair and fas-

tened securely in place to prevent injuries from entanglement or thrown objects.

• HYDRAULIC MACHINES: I have explained the necessity of using clean hydraulic oil, changing filters as

instructed, stopping leaks, damage caused by operating with over-heated oil, caring for hoses, using hoses of

proper rating, maintaining the specified operating pressure and the potential hazard of oil’s penetrating the

skin.

• FOLDING-TYPE IMPLEMENTS: I have explained that it is not possible to guard against thrown objects when

the head is lifted off ground and that operator is responsible to watch out for persons in the area. I have

explained that the lifted mower head or boom can contact overhead obstructions with damage to cables and

telephone lines and possible injury. I have explained that the extended head or boom or retracted boom can

contact power lines with resulting electrocution, injury or death and that operator is responsible for keeping

clear of such hazards.

PRE-DELIVERY SERVICE

CHECK AND ADJUST OR LUBRICATE AS REQUIRED

See Operator’s Manual for Details

Inspection Performed - Warranty and Safety Procedures Explained - Installation Complete

LUBRICATION & HYDRAULICS



Gearbox (Oil Levels)

 Hydraulic Oil Level (External Tank)

 Tractor Hydraulic Oil Level

 Hydraulic Hoses (Not Kinked Tighten Connections)

 Front Pump Drive (Assembly Is Tight And Shaft Properly

Aligned)

MOWER



Spindle And Motor Bolts Properly Torqued

 Spindle Oil Level

 Blade Carrier Bolts Properly Torqued/Retaining Pin In

Place

 Mower Cutting Height And Level Adjusted

 Cutting Shaft Bearings Lubricated

 All Hardware Properly Torqued

 Tire and Air Pressure/Lug Nuts (Correct Torque)

 Wheel Bearings (Check, Grease, and Preload)

ATTACHMENTS & INSTALLATION



Deflectors Front And Rear

 Shredding Attachments

 Correct Blade Rotation Direction

 Axle Arms And Beams

 Tongue And Control Rods (Installed And Adjusted)

 All Bolts - Pins And Nuts (Proper Torque)

MOWER TO TRACTOR CONNECTIONS



Draw Bar Length (Check And Set)

 A-Frame Pivot & Links

 Control Rods (Adjusted Equal)

 Axle Height (Adjusted)

 Cutting Height (Adjust)

 Mount Kit-Pre-Operation Check Complete

 Mower Wing (Adjust Level With The Center)

 Mower Wing (Check For Proper Raising Operation)

 C.V. Driveline (Check Max Turn Radius)

 Pull Type Hitch (Height Adjustment)

 Mounting Hardware Properly Torqued

SAFETY ITEMS



Protective Shields (Operation And Installation)

 Driveline Clutch (Torque Limiter) (Adjust And Run In)

 Safety Decals (Installed)

 Operator’s Manual (Supplied)

 Tractor PTO Shield (Installed)

 S.M.V. Emblem (Installed If Needed)

 Tongue Jack (Installation and Operation)

 Safety Tow Chain (Installed)

 ADMA Driveline Safety Manual Supplied

 AEM Mower Safety Manual (Supplied in Canister)

 AEM Mower Safety Video has been shown to Purchaser

Table of Contents

SAFETY SECTION ............................................................................................................. 1-1

GENERAL SAFETY INSTRUCTIONS AND PRACTICES ................................................................................ 1-2

OPERATOR SAFETY ....................................................................................................................................... 1-3

CONNECTION OR DISCONNECTING IMPLEMENT SAFETY ....................................................................... 1-4

CRUSHING HAZARDS ..................................................................................................................................... 1-5

THROWN OBJECTS HAZARDS ...................................................................................................................... 1-6

RUN OVER HAZARDS ..................................................................................................................................... 1-8

PTO ENTANGLEMENT HAZARDS .................................................................................................................. 1-9

MOWER BLADE CONTACT HAZARDS ........................................................................................................ 1-10

HIGH PRESSURE OIL LEAK HAZARDS ....................................................................................................... 1-11

ELECTRICAL & FIRE HAZARDS ................................................................................................................... 1-12

TRANSPORTING HAZARDS ......................................................................................................................... 1-13

HAZARDS WITH MAINTENANCE OF IMPLEMENT ..................................................................................... 1-14

PARTS INFORMATION .................................................................................................................................. 1-15

Decal Location ................................................................................................................................................ 1-16

Decal Description ............................................................................................................................................ 1-18

Federal Laws and Regulations ....................................................................................................................... 1-25

INTRODUCTION SECTION ................................................................................................ 2-1

Equipment Specifications .................................................................................................................................. 2-3

KEY OPERATION POINTS .............................................................................................................................. 2-4

Operating Noise Level/Sound Pressure ............................................................................................................ 2-4

ASSEMBLY SECTION ....................................................................................................... 3-1

DEALER SETUP INSTRUCTIONS ................................................................................................................... 3-2

SETUP INSTRUCTIONS - STANDARD HITCH ............................................................................................... 3-2

SET UP INSTRUCTIONS - QUICK HITCH ...................................................................................................... 3-3

SETUP INSTRUCTIONS - SHIELDING AND DEFLECTORS .......................................................................... 3-4

SETUP INSTRUCTIONS - TAILWHEEL .......................................................................................................... 3-4

DRIVELINE ATTACHMENT - SLIP CLUTCH ................................................................................................... 3-5

SLIP CLUTCH ADJUSTMENT and OPERATIONAL CHECK .......................................................................... 3-5

BUSH HOG SLIP CLUTCHES .........................................................................................................................3-6

OPERATION SECTION ...................................................................................................... 4-1

OPERATOR REQUIREMENTS ........................................................................................................................ 4-3

TRACTOR REQUIREMENTS ........................................................................................................................... 4-4

ROPS and Seat Belt ......................................................................................................................................... 4-4

Tractor Safety Devices ...................................................................................................................................... 4-4

Tractor Horsepower .......................................................................................................................................... 4-4

3-Point Hitch ..................................................................................................................................................... 4-5

Power Take Off (PTO) ...................................................................................................................................... 4-5

Tire Spacing ...................................................................................................................................................... 4-6

GETTING ON AND OFF THE TRACTOR ........................................................................................................ 4-6

Boarding the Tractor ......................................................................................................................................... 4-6

Dismounting the Tractor .................................................................................................................................... 4-7

STARTING THE TRACTOR ............................................................................................................................. 4-8

CONNECTING THE MOWER TO THE TRACTOR .......................................................................................... 4-8

Connecting the Mower-Lift Type ....................................................................................................................... 4-9

3-Point Quick Hitch ......................................................................................................................................... 4-10

Connecting Mower - Lift Type (Quick Hitch) ................................................................................................... 4-10

Safety Tow Chain ............................................................................................................................................ 4-11

SETTING THE MOWER ................................................................................................................................. 4-11

Setting Mower Height- Lift Type - (Standard or Quick Hitch) .......................................................................... 4-12

Setting Deck Pitch ........................................................................................................................................... 4-14

DRIVELINE ATTACHMENT ........................................................................................................................... 4-14

Driveline Length Check ................................................................................................................................... 4-15

Constant Velocity (CV) Driveline ..................................................................................................................... 4-18

PRE-OPERATION INSPECTION AND SERVICE .......................................................................................... 4-19

Tractor Pre-Operation Inspection/Service ....................................................................................................... 4-20

Mower Pre-Operation Inspection/Service ....................................................................................................... 4-20

Cutting Component Inspection ........................................................................................................................ 4-23

Blade Bolt Inspection ...................................................................................................................................... 4-26

Starting the Tractor ......................................................................................................................................... 4-30

Brake and Differential Lock Setting ................................................................................................................. 4-30

Raising the Mower .......................................................................................................................................... 4-31

Driving the Tractor and Mower ........................................................................................................................ 4-31

Crossing Ditches and Steep Inclines .............................................................................................................. 4-32

OPERATING THE TRACTOR AND IMPLEMENT .......................................................................................... 4-33

Foreign Debris Hazards .................................................................................................................................. 4-34

Bystanders/Passersby Precautions ................................................................................................................ 4-34

Engaging the Power Take Off (PTO) .............................................................................................................. 4-35

PTO RPM and Ground Speed ........................................................................................................................ 4-36

Operating the Mower ...................................................................................................................................... 4-36

Right of Way (Highway) Mowing ..................................................................................................................... 4-39

Shutting Down the Implement ......................................................................................................................... 4-40

DISCONNECTING THE MOWER FROM THE TRACTOR ............................................................................ 4-40

MOWER STORAGE ....................................................................................................................................... 4-42

TRANSPORTING THE TRACTOR AND IMPLEMENT .................................................................................. 4-42

Tire and Wheels .............................................................................................................................................. 4-43

Transporting on Public Roadways .................................................................................................................. 4-44

Hauling the Tractor and Implement ................................................................................................................. 4-45

TROUBLESHOOTING GUIDE ....................................................................................................................... 4-46

MAINTENANCE SECTION ................................................................................................. 5-1

HAZARDS WITH MAINTENANCE OF IMPLEMENT ....................................................................................... 5-2

Lubrication ........................................................................................................................................................ 5-3

GEARBOX ........................................................................................................................................................ 5-5

TAIL WHEEL ASSEMBLY ................................................................................................................................ 5-5

BLADE SERVICING ......................................................................................................................................... 5-8

BLADE SHARPENING ..................................................................................................................................... 5-9

BLADE CARRIER REMOVAL .......................................................................................................................... 5-9

BLADE REMOVAL .......................................................................................................................................... 5-10

SLIP CLUTCH ADJUSTMENT ....................................................................................................................... 5-11

STORAGE ...................................................................................................................................................... 5-12

PROPER TORQUE FOR FASTENERS .........................................................................................................5-12

Safety Section 1-1

SAFETY SECTION

SAFETY

Safety Section 1-2

SAFETY

GENERAL SAFETY INSTRUCTIONS AND PRACTICES

SAFETY

BH20 Series 04/13 Safety Section 1-3

SAFETY

OPERATOR SAFETY

TO AVOID SERIOUS INJURY OR DEATH DO THE FOLLOWING:

• READ, UNDERSTAND and FOLLOW Operator's Manual instructions, Warnings and Safety Messages.

• WEAR SAFETY GLASSES, safety shoes, hard hat, hearing protection and gloves when operating or

repairing equipment

• WEAR appropriate breathing respirator when operating in dusty conditions to avoid respiratory diseases.

• DO NOT WEAR loose clothing or jewelry to avoid rotating parts entanglement injury.

• DO NOT USE DRUGS or ALCOHOL before or while operating equipment.

• DO NOT ALLOW anyone to operate equipment under the influence of drug or alcohol.

• CONSULT medical professional for medication impairment side effects.

• STAY ALERT, prolonged operation can cause fatigue, STOP and REST.

GENERAL OPERATING SAFETY

VISIBILITY CONDITIONS WHEN MOWING:

• OPERATE IN DAYLIGHT or with lights that gives at least 100 yards clear visibility.

• BE ABLE TO SEE and identify passersby, steep slopes, ditches, drop-offs, overhead obstructions, power

lines, debris and foreign objects.

GROUND SPEED WHEN MOWING:

• NORMAL SPEED range is between 2 to 5mph.

• ADJUST MOWING SPEED for terrain conditions and grass type, density and cut height.

• REDUCE MOWING SPEED when near steep slopes, ditches, drop-offs, overhead obstructions, power

lines and to avoid debris and foreign objects.

INSECT INFESTATION

• Do Not operate in areas where bees or insects may attack unless you WEAR PROTECTIVE CLOTHING

or use enclosed tractor cab.

PTO SPEED:

• DO NOT EXCEED IMPLEMENT RATED PTO SPEED

• AVOID exceeding rated PTO speeds that may result in broken drivelines or blade failures.

SAFETY SIGNS:

• REPLACE missing, damaged or unreadable safety signs immediately.

PN OS01

SAFETY

BH20 Series 04/13 Safety Section 1-4

SAFETY

CONNECTION OR DISCONNECTING IMPLEMENT SAFETY

TO AVOID SERIOUS INJURY OR DEATH FROM BEING CRUSHED BY TRACTOR OR

IMPLEMENT:

WHEN BACKING

tractor to implement hitch:

• DO NOT ALLOW BYSTANDERS between tractor and implement

BEFORE connecting and disconnecting implement hitch:

• STOP TRACTOR ENGINE, place transmission into park, engage parking brake and remove key.

WHEN

connecting and disconnecting implement hitch:

• DO NOT crawl or walk under raised mower or wing.

• USE tongue JACK to lift heavy implement tongues to control implement tongue movement.

• AVOID overloading jack to prevent jack failure and injury.

WHEN CONNECTING IMPLEMENT DRIVELINE:

TO AVOID

implement driveline coming loose during operation:

• LUBRICATE yoke spring locking collar to ensure it freely slides on PTO shaft

• SECURELY seat yoke locking balls in PTO shaft groove.

• PUSH and PULL DRIVELINE on both the tractor and implement PTO SHAFTS to ensure it is SECURELY

ATTACHED

TO AVOID

broken driveline during operations:

• CHECK driveline for proper length between PTO shaft and implement gearbox shaft.

• Drivelines too short can pull apart or disengage.

• Drivelines too long can bottom out.

• Bottoming driveline telescoping assembly will stop sliding and become solid.

• Driveline bottoming can push through support bearings and break off PTO shaft.

CONTACT DEALER

if implement driveline does not match Tractor PTO shaft:

• DO NOT USE PTO ADAPTER.

Using a PTO adapter can cause:

• Excessive vibration, thrown objects, blade and implement failures by doubling operating speed.

• Increased working length exposing unshielded driveline areas and entanglement hazards.

DO NOT connect the Mower to a tractor with the PTO directly connected to the Tractor transmission. PN CD02

SAFETY

BH20 Series 04/13 Safety Section 1-5

SAFETY

CRUSHING HAZARDS

TO AVOID SERIOUS INJURY OR DEATH FROM FALLING OFF TRACTOR, EQUIPMENT RUN OVER,

ROLLOVER AND CRUSHING BY FALLING WING OR IMPLEMENT:

• USE ROPS and SEAT BELT equipped tractors for mowing operations.

• KEEP ROPS lock in up position.

• ALWAYS BUCKLE UP seat belt when operating tractor and equipment.

• ONLY OPERATE tractor and equipment while seated in tractor seat.

WHEN RAISING OR LOWERING IMPLEMENT:

•Raise or lower ONLY WHILE SEATED in tractor seat with seat belt buckled.

•Raise or lower ONLY when implement tongue is securely attached to tractor drawbar TO AVOID implement tip over.

• KEEP BYSTANDERS CLEAR of area TO AVOID crushing.

LIFTED Equipment can fall from mechanical or hydraulic failure or inadvertent Control Lever movement.

TO AVOID EQUIPMENT FALLING while working near or under lifted wings, components and

implements raised by 3-Pointed tractor hitch:

• SECURELY SUPPORT or block up raised equipment and components.

• BLOCK UP and securely support equipment before putting hands, feet or body under raised equipment or lifted compo-

nents.

WHEN PARKING Implement and Tractor:

• LOWER implement, LOCK or BLOCK lifted parts before leaving equipment.

• NEVER leave implement unattended in a raised position.

TO AVOID CHILDREN FALLING OFF OR BEING CRUSHED BY EQUIPMENT:

• NEVER ALLOW children to play on or around Tractor or Implement.

WHEN UNHITCHING IMPLEMENT:

• LOWER implement, LOCK or BLOCK lifted parts before leaving equipment.

• USE tongue jack to control implement tongue movement.

• USE tongue JACK to lift heavy implement tongues.

• AVOID overloading jack to prevent jack failure and injury.

PN CH02

SAFETY

BH20 Series 04/13 Safety Section 1-6

SAFETY

THROWN OBJECTS HAZARDS

ROTARY MOWERS CAN THROW OBJECTS 300 FEET OR MORE UNDER ADVERSE

CONDITIONS.

TO AVOID SERIOUS INJURY OR DEATH TO OPERATOR OR BYSTANDERS FROM THROWN OBJECTS:

• KEEP bystanders 300 feet away

STOP MOWING IF PASSERSBY ARE WITHIN 300 FEET UNLESS:

• All THROWN OBJECT SHIELDING including, Front and Rear Deflectors, Chains Guards, Steel Guards, Bands,

Side Skirts and Skid Shoes in place and in good condition when mowing.

• Mower sections or wing are adjusted to be close and parallel to ground without exposing blades.

• MOWING AREA has been inspected and foreign materials and debris have been removed.

• PASSERSBY are inside enclosed vehicle.

INSPECT AREA FOR POTENTIAL THROWN OBJECTS BEFORE MOWING:

• REMOVE debris, rocks, wire, cable, metal objects and other foreign material from area.

Wire, cable, rope, chains and metal objects can be thrown or swing outside deck with great velocity:

1. MARK objects that cannot removed.

2. AVOID these objects when mowing.

HIGH GRASS and WEED AREA INSPECTION:

• INSPECT for and REMOVE any hidden large debris.

• MOW at Intermediate height

• INSPECT and remove remaining debris

• MOW at final height.

MOWER THROWN OBJECT SHIELDING:

• KEEP all thrown object shielding including, Front and Rear Deflectors, Chains Guards, Steel Guards, Bands, Side

Skirts and Skid Shoes in place and in good condition when mowing.

• DO NOT OPERATE with any thrown object shielding missing, damaged or removed.

RIGHT OF WAY (Highway) MOWING

• USE DOUBLE CHAIN GUARDS for highway, right-of-way, parks or greenbelt mowing or all other mowing where

human dwellings, vehicles, or livestock could be within 300 feet of the mower.

• No shielding is 100% effective in preventing thrown objects. To Reduce Possibility of Injury:

1. MAINTAIN MOWER SHIELDING, side skirts, skid shoes, and blades in good operational condition,

2. RAISE CUTTING HEIGHT to 6 INCHES minimum,

3. INSPECT AREA thoroughly before mowing to REMOVE potential THROWN OBJECT HAZARDS,

4. NEVER ALLOW BLADES to CONTACT SOLID OBJECTS like wire, rocks, post, curbs, guardrails, or ground

while mowing.

PN TO02

SAFETY

BH20 Series 04/13 Safety Section 1-7

SAFETY

THROWN OBJECTS HAZARDS (CONTINUED)

MOWER OPERATION:

• DO NOT exceed mower's rated Cutting Capacity or cut non-vegetative material.

• USE ENCLOSED TRACTOR CABS when two or more mowers are operating in mowing area.

• ADJUST mower sections or wing close and parallel to ground without exposing blades

• ADJUST cutting HEIGHT to AVOID BLADE CONTACT with solid objects like wire, rocks, posts, curbs,

guard rails and fixed obstructions.

• DO NOT operate mower when mower is raised or in transport position

• STOP MOWING immediately if blades strike heavy objects, fixed structures, metal guard rails and con-

crete structures:

1. BLADES CAN FAIL from impact and objects can be thrown with great velocity.

2. INSPECT and REPLACE any damaged blades.

3. CHECK blade carrier balance and REPLACE if damaged.

• DO NOT mow in standing water TO AVOID possible BLADE FAILURE.

• AVOID MOWING in reverse:

1. STOP PTO and back up mower.

2. LOWER mower, engage PTO and mow forward.

• STOP PTO and BLADES when raising implement or the mower to transport position.

• DO NOT ENGAGE PTO with mower in transport position.

• STOP mowing when EXCESSIVE VIBRATION occurs:

1. STOP PTO and tractor ENGINE.

2. INSPECT mower for vibration source

3. REPLACE any damage parts and bent or damaged BLADES.

PN TO02-X

SAFETY

BH20 Series 04/13 Safety Section 1-8

SAFETY

RUN OVER HAZARDS

TO AVOID SERIOUS INJURY OR DEATH FROM FALLING OFF TRACTOR OR

EQUIPMENT RUN OVER:

• USE ROPS and SEAT BELT equipped tractors for mowing operations.

• KEEP ROPS locked in UP position.

• ONLY start tractor while seated in tractor seat.

• ALWAYS BUCKLE UP seat belt when operating tractor and equipment.

• ONLY OPERATE tractor and equipment while seated in tractor seat.

• NEVER ALLOW RIDERS on tractor or implement.

WHEN MOUNTING AND DISMOUNTING TRACTOR:

• ONLY mount or dismount when tractor and moving parts are stopped.

• STOP ENGINE AND PTO, engage parking brake, lower implement, allow all moving parts to stop

and remove key before dismounting from tractor.

PN RO01

SAFETY

BH20 Series 04/13 Safety Section 1-9

SAFETY

PTO ENTANGLEMENT HAZARDS

KEEP AWAY FROM ROTATING DRIVELINES AND ELEMENTS TO AVOID SERIOUS INJURY OR

DEATH:

STAY AWAY

and KEEP hands, feet and body AWAY from rotating blades, drivelines and parts until all moving

elements have stopped.

• STOP, LOOK and LISTEN before approaching the mower to make sure all rotating motion has stopped.

• ROTATING COMPONENTS CONTINUE to ROTATE after the PTO is shut off.

PTO SHIELDING:

TO AVOID SERIOUS INJURY OR DEATH FROM ENTANGLEMENT WHEN OPERATING IMPLEMENT:

• KEEP PTO shields, integral driveline shields and input shields installed

• DO NOT OPERATE mower without shields and guards in place or missing

• REPAIR OR REPLACE if damage, broken or missing

• ALWAYS REPLACE GUARDS that have been removed for service or maintenance.

• Do Not use PTO or PTO guard as a step.

TO AVOID

broken driveline during operations:

• CHECK driveline for proper length between PTO shaft and implement gearbox shaft.(Refer to Instructions in

Operation Section)

• Drivelines too short can pull apart or disengage.

• Drivelines too long can bottom out.

Bottoming driveline telescoping assembly will stop sliding and become solid.

• Driveline bottoming can push through support bearings and break off PTO shaft

• AVOID sharp turns or lift mower to heights to cause driveline "knocking".

• Lubricate driveshaft-telescoping components weekly.

CONTACT DEALER

if implement driveline does not match Tractor PTO shaft:

• DO NOT USE PTO ADAPTER.

Using a PTO adapter can cause excessive vibration, thrown objects, blade and implement failures by

doubling operating speed. Increased working length exposing unshielded driveline areas.

PN PE01

SAFETY

BH20 Series 04/13 Safety Section 1-10

SAFETY

MOWER BLADE CONTACT HAZARDS

KEEP AWAY FROM ROTATING BLADES TO AVOID SERIOUS INJURY OR DEATH FROM

BLADE CONTACT:

• STAY AWAY and KEEP HANDS, FEET and BODY AWAY from rotating blades, drivelines and parts until all moving

elements have stopped.

• DO NOT put hands or feet under mower decks

• STOP rotating BLADES disengage PTO and wait for blade to stop rotating before raising mower deck or wings

• STOP LOOK and LISTEN before approaching the mower to make sure all rotating motion has stopped.

PN MB01

SAFETY

BH20 Series 04/13 Safety Section 1-11

SAFETY

HIGH PRESSURE OIL LEAK HAZARDS

TO AVOID SERIOUS INJURY OR DEATH FROM HIGH PRESSURE HYDRAULIC OIL LEAKS

PENERATING SKIN:

• DO NOT OPERATE equipment with oil or fuel leaks.

• KEEP all hydraulic hoses, lines and connections in GOOD CONDITION and TIGHT before applying system

pressure.

• RELIEVE HYDRAULIC PRESSURE before disconnecting lines or working on the system.

• REMOVE and replace hose if you suspect it leaks. Have dealer test it for leaks.

HIGH PRESSURE FLUID LEAKS CAN BE INVISIBLE.

WHEN CHECKING FOR HYDRAULIC LEAKS AND WORKING AROUND HYDRAULIC SYSTEMS:

• ALWAYS WEAR safety glasses and impenetrable gloves.

• USE paper or cardboard to search for leaks.

• DO NOT USE hands or body parts to search for leak.

• KEEP hands and body AWAY from pin holes and nozzles ejecting hydraulic fluid.

• Hydraulic fluid may cause gangrene if not surgically removed immediately by a doctor familiar with this form of injury.

PN HP01

SAFETY

BH20 Series 04/13 Safety Section 1-12

SAFETY

ELECTRICAL & FIRE HAZARDS

TO AVOID SERIOUS INJURY OR DEATH FROM ELECTRICAL CONTACT WHEN

WORKING AROUND ELECTRICAL POWER LINES, GAS LINES AND UTILITY LINES:

• INSPECT mowing area for overhead or underground electrical power lines, obstructions, gas lines,

cables and Utility, Municipal, or other type structure.

• DO NOT allow mower to contact with any Utility, Municipal, or type of structures and obstructions.

• CALL 811 and 1-800-258-0808 for identify buried utility lines.

FIRE PREVENTION GUIDELINES while Operating, Servicing, and Repairing Mower and Tractor to

reduce equipment and grass fire Risk:

• EQUIP Tractor with a FIRE EXTINGUISHER

• DO NOT OPERATE mower on a tractor equipped with under frame exhaust

• DO NOT SMOKE or have open flame near Mower or Tractor

• DO NOT DRIVE into burning debris or freshly burnt area

• AVOID FIRE IGNITION by not allowing mower blade to contact solid objects like metal or rock.

• ADJUST SLIP CLUTCHES to avoid excessive slippage and clutch plate heating.

• CLEAR any grass clippings or debris buildup around mower drivelines, slip clutches, and gearboxes.

• SHUT OFF ENGINE while refueling.

PN EF02

SAFETY

BH20 Series 04/13 Safety Section 1-13

SAFETY

TRANSPORTING HAZARDS

TO AVOID SERIOUS INJURY AND DEATH WHEN TOWING OR TRANSPORTING EQUIPMENT:

• KEEP transport speed BELOW 20 mph to maintain control of equipment.

• REDUCE SPEED on inclines, on turns and in poor towing conditions.

• DO NOT TOW with trucks or other vehicles

• USE only properly sized and equipped tractor for towing equipment.

• FOLLOW all local traffic regulations.

TRACTOR REQUIREMENTS FOR TOWING OR TRANSPORTING IMPLEMENTS:

• ONLY TRANSPORT with tractor with ROPS in the raised position.

• USE properly sized and equipped tractor that exceeds implement weight by at least 20%

• KEEP 20% of tractor weight on front wheels to maintain safe steering.

BEFORE TRANSPORTING OR TOWING IMPLEMENT:

TRACTOR INSPECTION:

• CHECK steering and braking for proper operation and in good condition.

• CHECK SMV sign, reflectors and warning lights for proper operation and visibility behind unit.

• CHECK that your driving vision is not impaired by tractor, cab, or implement while seated in tractor seat.

• ADJUST your operating position, mirrors, and implement transport for clear vision for traveling and traffic conditions.

PREPARE IMPLEMENT FOR TRANSPORTING OR TOWING:

• DISENGAGE PTO

• RAISE MOWER

• REMOVE any cut material collected on mower deck.

TOWED MOWERS - ENGAGE TRANSPORT LOCKS AND SAFETY CHAINS:

• INSTALL center axle cylinder transport stops or pins

• ATTACH implement SAFETY CHAIN to tractor

DETERMINE STOPPING CHARACTERISTICS OF TRACTOR AND IMPLEMENT FOR TRANSPORTING OR

TOWING:

BRAKING TESTS:

• APPLY brakes at increasing speeds

• Observe STOPPING distances increases with increased speeds.

• DETERMINE the maximum safe transport speed that does not exceed 20 mph

DETERMINE MAXIMUM TURNING SPEED BEFORE OPERATING ON ROADS OR UNEVEN GROUND:

• TEST equipment in slowly increasing speed in turns to determine it can be operated at higher speeds.

• USE REDUCED turning speeds in sharp turns to avoid equipment turning over.

WHEN TOWING OR TRANSPORTING EQUIPMENT:

• Always WEAR SEAT BELT when operating or transporting mower.

• USE low speeds to avoid overturn with raised wings.

• USE low speeds and gradual steering on curves, hills, rough or uneven surfaces and on wet roads

• TURN ON tractor FLASHING WARNING LIGHTS.

• ALLOW cle

arance for implement swing while turning.

PN TH02

SAFETY

BH20 Series 04/13 Safety Section 1-14

SAFETY

HAZARDS WITH MAINTENANCE OF IMPLEMENT

SAFETY

BH20 Series 04/13 Safety Section 1-15

SAFETY

PARTS INFORMATION

Bush Hog mowers use balanced and matched system components for blade carriers, blades, cuttershafts,

knives, knife hangers, rollers, drivetrain components, and bearings. These parts are made and tested to Bush

Hog specifications. Non-genuine "will fit" parts do not consistently meet these specifications. The use of “will

fit” parts may reduce mower performance, void warranties, and present a safety hazard. Use genuine Bush

Hog mower parts for economy and safety.

(SPBH-1)

SEE YOUR BUSH HOG DEALER

SAFETY

BH20 Series 04/13 Safety Section 1-16

SAFETY

Decal Location

NOTE: Bush Hog supplies safety decals on this product to promote safe operation. Damage to the decals may

occur while in shipping, use, or reconditioning. Bush Hog cares about the safety of its customers, operators,

and bystanders, and will replace the safety decals on this product in the field, free of charge (Some shipping

and handling charges may apply). Contact your Bush Hog dealer to order replacement decals.

SAFETY

BH20 Series 04/13 Safety Section 1-17

SAFETY

ITEM PART NO. QTY TYPE DESCRIPTION

1. 50061049 2 LOGO Bush Hog

2. D546 1 DANGER Guard Missing, Do Not Operate

3. D551 1 WARNING Blade Rotation, CCW

4. D547 1 DANGER Driveline Hazard

5. D549 1 DANGER Multi-Hazard

6. D590 1 INSTRUCT Lubrication Chart

7. D559 1 WARNING Use Genuine Bush Hog Parts

8. D614 2 DANGER Thrown Objects

9. D454 1 WARNING Crushing Hazard (located underside of deck)

10. 50031213 2 REFLECTOR Red Reflector

11. 50070262 1 NAME BH25

50070263 1 NAME BH26

50070264 1 NAME BH27

12. D813 1 DANGER Multi-Language General Safety

13. 78608 1 DANGER Rotating Driveline, Keep Away, Outer Shield Tube

14. 78786 1 DANGER Guard Missing, Do Not Operate

15. 94359 1 REFLECTOR SMV Symbol

16. 50035829 1 Canister (Operator’s Manual Inside)

17. 50070397 1 Operator’s Manual (Inside Canister)

SAFETY

BH20 Series 04/13 Safety Section 1-18

SAFETY

Decal Description

SAFETY

BH20 Series 04/13 Safety Section 1-19

SAFETY

BH20 Series 04/13 Safety Section 1-20

SAFETY

BH20 Series 04/13 Safety Section 1-21

SAFETY

BH20 Series 04/13 Safety Section 1-22

SAFETY

BH20 Series 04/13 Safety Section 1-23

SAFETY

D813 2

D813 1

SAFETY

BH20 Series 04/13 Safety Section 1-24

SAFETY

BH20 Series 04/13 Safety Section 1-25

SAFETY

Federal Laws and Regulations

This section is intended to explain in broad terms the concept and effect of federal laws and regulations concerning

employer and employee equipment operators. This section is not intended as a legal interpretation of the law and

should not be considered as such.

Employer-Employee Operator Regulations

U.S. Public Law 91-596 (The Williams-Steiger Occupational and Health Act of 1970) OSHA

This Act Seeks:

“...to assure so far as possible every working man and woman in the nation safe and healthful working

conditions and to preserve our human resources...”

DUTIES

Sec. 5 (a) Each employer-

(1) shall furnish to each of his employees employment and a place of employment which are free from

recognized hazards that are causing or are likely to cause death or serious physical harm to his employees;

(2) shall comply with occupational safety and health standards promulgated under this Act.

(b) Each employee shall comply with occupational safety and health standards and all rules, regulations and

orders issued pursuant to this Act which are applicable to his own actions and conduct.

OSHA Training Requirements

Title 29, Code of Federal Regulations Part 1928.57(a)(6). www.osha.gov

Operator instructions. At the time of initial assignment and at least annually thereafter, the employer shall

instruct every employee who operates an agricultural tractor and implements in the safe operating practices

and servicing of equipment with which they are or will be involved, and of any other practices dictated by the

work environment.

Keep all guards in place when the machine is in operation;

Permit no riders on equipment

Stop engine, disconnect the power source, and wait for all machine movement to stop before servicing,

adjusting, cleaning or unclogging the equipment, except where the machine must be running to be properly

serviced or maintained, in which case the employer shall instruct employees as to all steps and procedures

which are necessary to safely service or maintain the equipment.

Make sure everyone is clear of machinery before starting the engine, engaging power, or operating the

machine.

Employer Responsibilities:

To ensure employee safety during Tractor and Implement operation, it is the employer’s responsibility to:

1. Train the employee in the proper and safe operation of the Tractor and Implement.

2. Require that the employee read and fully understand the Tractor and Implement Operator’s manual.

3. Permit only qualified and properly trained employees to operate the Tractor and Implement.

4. Maintain the Tractor and Implement in a safe operational condition and maintain all shields and guards on the

equipment.

5. Ensure the Tractor is equipped with a functional ROPS and seat belt and require that the employee operator

securely fasten the safety belt and operate with the ROPS in the raised position at all times.

6. Forbid the employee operator to carry additional riders on the Tractor or Implement.

7. Provide the required tools to maintain the Tractor and Implement in a good safe working condition and provide the

necessary support devices to secure the equipment safely while performing repairs and service.

8. Require that the employee operator stop operation if bystanders or passersby come within 300 feet.

Child Labor Under 16 Years of Age

Some regulations specify that no one under the age of 16 may operate power machinery. It is your responsibility to

know what these regulations are in your own area or situation. (Refer to U.S. Dept. of Labor, Employment Standard

Administration, Wage & Home Division, Child Labor Bulletin #102.)

Introduction Section 2-1

INTRODUCTION SECTION

INTRODUCTION

BH20 Series 04/13 Introduction Section 2-2

INTRODUCTION

We are pleased to have you as a Bush Hog customer. Your Rotary Cutter has been carefully designed with

care and built with quality materials by skilled workers to give maximum service with minimum down time. This

manual is provided to give you the necessary operating and maintenance instructions for keeping your rotary

cutter in top operating condition. Careful use and timely service saves extensive repairs and costly downtime

losses. Please read this manual thoroughly. Understand what each control is for and how to use it.

Bush Hog typically offers three types of shielding to protect the operator, passerby, livestock, and property from

thrown objects... deflectors, single chain guards, and double chain guards. Shielding should be selected based

on the intended use of the mower. Double chain guards or deflectors should be used for highway, right-of-way,

parks or greenbelt mowing or all other mowing where human dwellings, vehicles, or livestock could be within

300 feet of the mower. Chain guards are more durable, provide a longer service life and require less

maintenance and replacement than deflectors. Single chain guards may be sufficient for agriculture and other

mower use only where passersby or property are not within 300 feet of the mower during operation.

No shielding is 100% effective in preventing thrown objects. The possibility of injury and property damage from

this hazard can be substantially reduce by selecting proper shielding, maintaining the mower and shielding in

good operational condition, inspecting the area for foreign debris before mowing, operating the mower at a

minimum cutting height of 4", and keep unprotected persons at a minimum distance of 300 feet from the

mower at all times during operation.

Safety is of primary importance to the owner/operator and to the manufacturer. Observe all safety precaution

decals on the machine and noted throughout the manual for safe operation of implement. If any assistance or

additional information is needed, contact your authorized Bush Hog dealer. The owner/operator/dealer should

know and understand the Safety Messages before assembly and be aware of the hazards of operating this

cutter during assembly, use, and maintenance. The Safety Alert Symbol combined with a Signal Word, as seen

below, is intended to warn the owner/operator of impending hazards and the degree of possible injury faced

when operating this machine.

Indicates an imminently hazardous situation that, if not avoided, WILL result in DEATH OR

VERY SERIOUS INJURY.

Indicates an imminently hazardous situation that, if not avoided, COULD result in DEATH

OR SERIOUS INJURY.

Indicates an imminently hazardous situation that, if not avoided, MAY result in MINOR

INJURY.

Identifies special instructions or procedures that, if not strictly observed, could result in

damage to, or destruction of the machine, attachments or the environment.

INTRODUCTION

1. A-Frame

2. Driveline

3. Cutter Deck

4. Tailwheel

5. Clutch Shield

6 Adjusting Strap

7. Support Yoke

8. Chain Guard

The BH20 Series Rotary Mowers are designed for medium duty applications such as grass, corn stalks and

light brush up to 3 inches diameter. These mowers are single spindle with two free-swinging blades. Each

cutter has free-swinging blades which reduce the shock of impact when a stationary object is hit. Additional

protection is provided by a slip clutch at the gearbox input shaft. A slip clutch protects the gearbox and drive

line from damage on all models. Standard equipment includes driveline shields, clutch shields and front and

rear discharge protection (deflectors or chains).

EQUIPMENT SPECITFICATIONS

BH25 BH26 BH27

Cutting Width 5 feet 6 feet 7 feet

Transport Width 5’ 6” 6’ 6” 7’ 6”

Transport Length 8’ 8” 9’ 8” 10’ 8”

Cutting Height 1-1/2” to 10-1/2” 1-1/2” to 10-1/2” 1-1/2” to 10-1/2”

Tractor HP Required 35HP 45HP 55 Min.

Cutting Capacity (max) 3” 3” 3”

Approximate Weight 906 bs. 1095 bs. 1328 lbs.

Hitch 3pt. Cat I and Cat II 3pt. Cat I and Cat II 3pt. Cat II and Cat III

Standard and QH Standard and QH Standard and QH

Gearbox 130 HP 130 HP 130 HP

Blade Tip Speed 14,600 ft./min. 15,000 ft./min. 14,450 ft./min.

Blades 1/2 x 4” 1/2 x 4” 1/2 x 4”

Driveline Protection Slip Clutch (Standard) Slip Clutch (Standard) Slip Clutch (Standard)

Guarding Front and Rear belting or Front and Rear Chains

Tires Single Laminated Single Laminated Single or Dual Laminated

Literature Page

www.algqr.com/ble

BH20 Series 04/13

Introduction Section 2-3

INTRODUCTION

BH20 Series 04/13 Introduction Section 2-4

INTRODUCTION

KEY OPERATION POINTS

• Cutting performance and distribution are best when cutter is level from side to side and front to rear.

• In extra heavy material, rear chains will allow better discharge and better distribution than solid rear bands.

• Never operate the Mower below full PTO speed of 540.

• Corn should be cut at 5 to 6 mph. If full PTO rpm cannot be maintained, use one lower gear.

Operating Noise Level/Sound Pressure

The sound levels at the operator's ear from the attached machine (rotary cutter) are at least 10 dB(A) below the

levels from typical Agricultural tractors used to power and transport this machine. Therefore, the Noise

emission values given by the OEM of the Agricultural tractor used to power and transport this machine would

be valid when this machine is attached to and operated by that Agricultural tractor in all OEM recommended

applications.

INTRODUCTION

BH20 Series 04/13 Introduction Section 2-5

INTRODUCTION

LIMITED WARRANTY



Bush Hog warrants to the original purchaser of any new Bush Hog equipment, purchased from an authorized

Bush Hog dealer, that the equipment be free from defects in material and workmanship for a period of one (1)

year for non-commercial, state and municipalities’ use and ninety (90) days for commercial use from date of

retail sale. The obligation of Bush Hog to the purchaser under this warranty is limited to the repair or

replacement of defective parts.

Replacement or repair parts installed in the equipment covered by this limited warranty are warranted for

ninety (90) days from the date of purchase of such part or to the expiration of the applicable new equipment

warranty period, whichever occurs later. Warranted parts shall be provided at no cost to the user at an

authorized Bush Hog dealer during regular working hours. Bush Hog reserves the right to inspect any

equipment or parts which are claimed to have been defective in material or workmanship.

DISCLAIMER OF IMPLIED WARRANTIES & CONSEQUENTIAL DAMAGES

Bush Hog’s obligation under this limited warranty, to the extent allowed by law, is in lieu of all warranties,

implied or expressed, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE and any liability for incidental and consequential damages with respect to the sale

or use of the items warranted. Such incidental and consequential damages shall include but not be limited to:

transportation charges other than normal freight charges; cost of installation other than cost approved by Bush

Hog; duty; taxes; charges for normal service or adjustment; loss of crops or any other loss of income; rental of

substitute equipment, expenses due to loss, damage, detention or delay in the delivery of equipment or parts

resulting from acts beyond the control of Bush Hog.

THIS LIMITED WARRANTY SHALL NOT APPLY:

1. To vendor items which carry their own warranties, such as engines, tires, and tubes.

2. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident.

3. If parts not made or supplied by Bush Hog have been used in connection with the unit, if, in the sole

judgement of Bush Hog such use affects its performance, stability or reliability.

4. If the unit has been altered or repaired outside of an authorized Bush Hog dealership in a manner which, in

the sole judgement of Bush Hog, affects its performance, stability or reliability.

5. To normal maintenance service and normal replacement items such as gearbox lubricant, hydraulic fluid,

worn blades, or to normal deterioration of such things as belts and exterior finish due to use or exposure.

6. To expendable or wear items such as teeth, chains, sprockets, belts, springs and any other items that in

the company’s sole judgement is a wear item.

NO EMPLOYEE OR REPRESENTATIVE OF BUSH HOG IS AUTHORIZED TO CHANGE THIS LIMITED

WARRANTY IN ANY WAY OR GRANT ANY OTHER WARRANTY UNLESS SUCH CHANGE IS MADE IN

WRITING AND SIGNED BY BUSH HOG’S SERVICE MANAGER, 2501 GRIFFIN AVE., SELMA, ALABAMA

36703.



Record the model number, serial number and date

purchased. This information will be helpful to your

dealer if parts or service are required.

MAKE CERTAIN THE WARRANTY

HAS BEEN FILED WITH BUSH HOG

SELMA, ALABAMA

MODEL NUMBER _________________________

SERIAL NUMBER _________________________

DATE OF RETAIL SALE ____________________

Assembly Section 3-1

ASSEMBLY SECTION

ASSEMBLY

BH20 SeriesSeries 04/13 Assembly Section 3-2

ASSEMBLY

DEALER SETUP INSTRUCTIONS

Set up mower as received from factory with these instructions.

This BH20 Series is shipped partially assembled. Assembly will be easier if components are aligned and loosely

assembled before tightening hardware. Refer to bolt torque chart in Maintenance Section. All fasteners are

Grade 5 unless otherwise specified.

1. Position on hard level surface.

2. Apply light coat of oil to gearbox input shaft.

“A” FRAME ASSEMBLY

1. Swing “A” Frame up to the vertical position.

2. Remove front capscrew, bushing and locknut

from the yoke.

3. Swing the pivot arm on top of the “A” Frame up

and place the bushing from the yoke in the

slotted hole in the pivot arm. Raise the yoke up

to a point that the pivot arm slotted hole with

bushing align between the yoke and the

bushing is in line with the front holes of the

yoke. NOTE: The slant cut of the pivot arm

should be resting atop the second bushing of

the yoke.

4. Re-install the capscrew through the yoke,

bushing and pivot arm. Install the locknut but

not so tight that the pivot arm cannot flex

between the yoke.

HITCH PINS

During shipping the Hitch Pins may both be stored on one side of the lift brackets. Remove one of the hitch

pins and move to the opposite side hitch bracket. The following diagram shows proper hitch pin locations for

different hitch point set up.

ASSEMBLY

BH20 Series 04/13 Assembly Section 3-3

ASSEMBLY

SET UP INSTRUCTIONS - QUICK HITCH

1. With the mower sitting flat on the ground loosen the fasteners attaching the “A” frame struts to the frame

and rotate up into the vertical position.

2. Rotate the Pivot Arm toward the rear of the machine and remove the capscrews, bushings and locknuts.

3. Rotate the yoke straps over so the top hole align with the slotted hole in the “Pivot Arm.

4. Place a bushing in the slotted hole of the Pivot Arm and re-install capscrew and locknut. Place the remain-

ing bushing under the angled end of the Pivot Arm, align holes in yoke straps and bushing and re-install

remaining capscrew and locknut.

5. Tighten the fasteners enough to take out any slack but not so tight that the pivot arm can not move freely.

ASSEMBLY

BH20 Series 04/13 Assembly Section 3-4

ASSEMBLY

SETUP INSTRUCTIONS - SHIELDING AND DEFLECTORS

Bush Hog BH20 Series models as shipped from the factory, have all Shielding and Deflectors in place. Dealer

should inspect to make sure that all Safety Shielding and Deflectors are in place and fasteners are tight

Front and Rear Deflectors or Front and Rear Chains are a selection on BH25, BH26, BH27

Models. One type of gu

ard must be installed (and maintained in good repair) except for

agricultural purposes only in areas where persons, vehicles, livestock, or other property will

not be endangered by thrown objects and where such safety equipment would prevent the

mower's reasonable performance of its assigned agricultural task.

Deflectors: Front and Rear Deflectors (Standard Equipment) are recommended for the average user and will

provide protection from thrown objects with proper operation under normal conditions. Deflectors must be

maintained in good repair or replaced after no more than two inches of wear off lower edge.

SETUP INSTRUCTIONS - TAILWHEEL

Bush Hog BH20 Series models as shipped from the factory Tailwheel Frame and Tailwheel mounted to the

unit.

ADJUSTING FOR WORK

The cutter should be operated at the highest position which will give desired cutting results. This will help

prevent the blades from striking the ground, reducing blade wear and undue strain on the machine. For best

results under heavier cutting conditions, always tilt the cutter approximately 2 inches (51mm) lower in the front.

This tilt decreases horsepower requirements and increases potential ground speed. When fine shredding is

desired, adjust cutter deck level or slightly lower in the rear. This will keep the foliage under cutter until

thoroughly shredded. More power is required for shredding. Each cutter can be adjusted to several cutting

heights. The BH20 Series Models can be adjusted from 1-1/2" to 10-1/2” of cutting height.

To adjust, raise

cutter and block securely in position. Remove bolt from adjusting bracket shown in Figure

below. Adjust tailwheel frame up or down and secure in desired position.

ASSEMBLY

BH20 Series 04/13 Assembly Section 3-5

ASSEMBLY

DRIVELINE ATTACHMENT

Before starting assembly, make certain that all paint, dirt, and grease are removed from gearbox shaft. To ease

assembly apply a light coat of grease to splines and assemble. Do not assemble a driveline without a shield.

Entanglement in rotating shafts can kill. Figure Asm-R-

Remove tapered pin from splined clutch hub on the

end of the driveshaft. Rotate the clutch shield up

over the top of the gearbox to expose the gearbox

input shaft. Slide the slip clutch end of the driveline

onto the gearbox input shaft. Make certain that the

slip clutch is fully on the input shaft splines. Align

the tapered pin hole in the hub with the grove on the

input shaft. Install the tapered pin, washer and

locknut. Torque the nut to 30 ft. lbs.

SLIP CLUTCH ADJUSTMENT AND OPERATIONAL CHECK

1. Remove filler plug on top of gearbox housing and oil level plug on right side of housing. Fill gearbox with

EP80W-90 gear oil until oil just reaches bottom of level plug hole. Allow time for oil to seep through

bearings in lower housing of gearbox and then add oil again to reach level plug hole. Replace filler plug on

top of gearbox with breather plug/dipstick supplied in Operator’s Manual Package.

2. Connect cutter to tractor’s 3-point hitch, attaching top link in holes of A-Frame struts using customer

supplied pin. Attach lower link arms to cutter deck using the pins and bushings supplied with the cutter.

Refer to Hitch Pin Setup for correct setup.

3. Connect free end of driveline to tractor PTO shaft by pulling back on collar on driveline yoke and then

sliding yoke onto shaft. Release collar and slide driveline yoke back and forth on shaft until an audible click

is heard (Ball Collar has seated in groove on PTO Shaft).

4. Loosen eight nuts retaining clutch springs by 1/3 turn or until spring can be turned with fingers.

5. Start tractor and allow tractor to idle. With tractor at idle speed, engage tractor PTO drive for 2 -3 seconds.

Clutch should slip without turning cutter blades.

6. Disengage tractor PTO and turn off tractor ignition.

7. Re-tighten nuts on clutch springs to with 1/64” of original position. Initial spring length shown below.

IMPORTANT: DO NOT OVERTIGHTEN NUT AND CAUSE SPRING TO BECOME SOLID AS THIS WILL

CAUSE SHAFT TO FAIL.

(See

Chart)

MODEL EG/Comer

BH25 & BH26 1.27” (32.2 mm)

BH27 1.32” (33.6 mm)

SPRING LENGTH

Operation Section 4-1

OPERATION SECTION

OPERATION

BH20 Series 04/13 Operation Section 4-2

OPERATION

BUSH HOG BH20 SERIES ROTARY MOWER

OPERATION INSTRUCTIONS

Bush Hog rotary mowers are manufactured with quality material by skilled workers. These mowers are

designed to cut grass, weeds, small brush and other vegetative material up to 3” diameter in areas such as

pastures, industrial areas, and roadsides. The mower is equipped with protective deflectors and/or chain

guards to prevent objects being thrown from the mower by the blades, however, no shielding is 100% effective.

All shields, guards, deflectors, and chains equipped on the unit must be maintained on the mower in good

operational condition.

It is the operator’s responsibility to be knowledgeable of all potential operating hazards and to take every

reasonable precaution to ensure oneself, others, animals, and property are not injured or damaged by the

mower, tractor, or a thrown object. Do not operate the mower if passersby, pets, livestock, or property are

within 300 feet of the unit unless:

• All THROWN OBJECT SHIELDING including, Front and Rear Deflectors, Chains Guards, Steel Guards,

Bands, Side Skirts and Skid Shoes in place and in good condition when mowing.

• Mower sections or wing are adjusted to be close and parallel to ground without exposing blades.

• MOWING AREA has been inspected and foreign materials and debris have been removed.

• PASSERSBY are inside enclosed vehicle.

This section of the Operator’s Manual is designed to familiarize, instruct, and educate safe and proper mower

use to the operator. Pictures contained in this section are intended to be used as a visual aid to assist in

explaining the operation of a rotary mower. Some pictures may show shields removed for purposes of clarity.

NEVER OPERATE this implement without all shields in place and in good operational condition. The operator

must be familiar with the mower and tractor operation and all associated safety practices before operating the

mower and tractor. Proper operation of the mower, as detailed in this manual, will help ensure years of safe

and satisfactory use of the mower.

IMPORTANT: To avoid mower damage, retorque all bolts after the first 10 hours of operation. Retighten blade

carrier retaining nut on gearbox lower shaft to 450 ft. lbs.

READ AND UNDERSTAND THE ENTIRE OPERATING INSTRUCTIONS AND SAFETY SECTION OF THIS

MANUAL AND THE TRACTOR MANUAL BEFORE ATTEMPTING TO U

SE THE TRACTOR AND

IMPLEMENT. If you do not understand any of the instructions, contact your nearest authorized dealer for a

full explanation. Pay close attention to all safety signs and safety messages contained in this manual and

those affixed to the implement and tractor. OPS-U- 0001

READ, UNDERSTAND, and FOLLOW

the following Safety Messages. Serious injury or

death may occur unless care is taken to follow the warnings and instructions stated in the

Safety Messages. Always use good common sense to avoid hazards.

(SG-2)

Si no lee ingles, pida ayuda a alguien que si lo lea para que le traduzca las

medidas de seguridad.

(SG-3)

OPERATION

BH20 Series 04/13 Operation Section 4-3

OPERATION

1. OPERATOR REQUIREMENTS

Safe operation of the unit is the responsibility of a qualified operator. A qualified operator has read and

understands the implement and tractor Operator’s Manuals and is experienced in implement and tractor

operation and all associated safety practices. In addition to the safety messages contained in this manual,

safety signs are affixed to the implement and tractor. If any part of the operation and safe use of this

equipment is not completely understood, consult an authorized dealer for a complete explanation.

If the operator cannot read the manuals for themselves or does not completely understand the operation of the

equipment, it is the responsibility of the supervisor to read and explain the manuals, safety practices, and

operating instructions to the operator.

Safe operation of equipment requires that the operator wear approved Personal Protective Equipment (PPE)

for the job conditions when attaching, operating, servicing, and repairing the equipment. PPE is designed to

provide operator protection and includes the following safety wear:

PERSONAL PROTECTIVE EQUIPMENT (PPE)

• Always Wear Safety Glasses

•Hard Hat

• Steel Toe Safety Footwear

• Gloves

• Hearing Protection

• Close Fitting Clothing

• Respirator or Filter Mask (depends on

operating conditions) OPS-U- 0002

DO NOT use drugs or alcohol immediately before or while operating the

Tractor and Implement. Drugs and alcohol will affect an operator’s

alertness and coordination and therefore affect the operator’s ability to

operate the equipment safely. Before operating the Tractor or Implement,

an operator on prescription or over-the-counter medication must consult

a medical professional regarding any side effects of the medication that

would hinder their ability to operate the Equipment safely. NEVER

knowingly allow anyone to operate this equipment when their alertness or

coordination is impaired. Serious injury or death to the operator or others

could result if the operator is under the influence of drugs or alcohol.

(SG-27)

OPERATION

BH20 Series 04/13 Operation Section 4-4

OPERATION

2. TRACTOR REQUIREMENTS

The tractor used to operate the mower must have the power capacity to lift, pull, and operate the Power Take

Off (PTO) at the mower’s rated speed while traveling at a ground speed between 2 and 5 MPH. Operating the

mower with a tractor that does not meet the following requirements may cause tractor or mower damage and

be a potential danger to the operator and passersby.

Tractor Requirements and Capabilities

• ASABE approved Roll-Over Protective Structure (ROPS) or ROPS cab and seat belt.

• Tractor Safety Devices.....................Slow Moving Vehicle (SMV) emblem, lighting, PTO master shield

• Tractor Horsepower:

............................ BH25 BH26 BH27

-Minimum ...................... 35 45 55

• Hitch -Lift Type Mower:

- Lifting Capacity............ 1025 Lbs 1160 Lbs 1540 Lbs

- 3-Point Hitch................ Cat 1 & 2 Cat 1 & 2 Cat 2 & 3

• Front End Weight .............................As needed to maintain 20% weight on front axle

2.3 Tractor Horsepower

The power required to operate a mower is determined by the tractor PTO horsepower. For most mowing

conditions, the BH25 - 35HP, the BH26 - 45 HP, the BH27 - 55 HP. Operating the mower with a tractor that

does not have adequate power may damage the tractor engine. Exceeding recommended HP may cause

mower damage by overpowering the unit in heavy cutting conditions.

2.1 ROPS and Seat Belt

The tractor must be equipped with a Roll-Over-Protective-Structure (ROPS) (tractor cab or roll-bar) and seat

belt to protect the operator from falling off the tractor, especially during a roll over where the driver could be

crushed and killed. Only operate the tractor with the ROPS in the raised position and seat belt fastened.

Tractor models not equipped with a ROPS and seat belt should have these life saving features installed by an

authorized dealer. OPS-U- 0003

Operate this Equipment only with a Tractor equipped with an approved roll-

over-protective system (ROPS). Always wear seat belts. Serious injury

even death could result from falling off the tractor--particularly during a turnover

when the operator could be pinned under the ROPS.

(SG-7)

2.2 Tractor Safety Devices

If transporting or operating the tractor and implement near a public roadway, the tractor must be equipped with

proper warning lighting and a Slow Moving Vehicle (SMV) emblem which are clearly visible from the rear of

the unit. Lights and a SMV emblem must be equipped directly on implements if the visibility of the tractor

warning signals are obscured.

Maintain all manufacturer equipped safety shields and guards. Always replace shields and guards that were

removed for access to connect, service, or repair the tractor or implement. Never operate the tractor PTO

with the PTO master shield missing or in the raised position. OPS-U- 0004

2.4 3-Point Hitch

The tractor 3-point hitch must be rated to lift at least,

1025 lbs (BH25), 1160 lbs (BH26), and 1540 lbs

(BH27). These models are designed to be mounted

on a tractor CAT I or CAT II (BH25 & BH26) CAT II or

CAT III (BH27) 3-Point or Quick Hitch.

Refer to the tractor operator’s manual for the

category of the tractor being used. If the hitch does

not conform to ASABE CAT I, CAT II or CAT III

dimensions, the mower may not fit or raise properly.

Consult an authorized dealer for possible modifica-

tion procedures to mount non-conforming hitches.

Depending on the hitch category, certain size pins

are used to attach the mower to the tractor. CAT I

hitches require 7/8” lower and 3/4” upper diameter

hitch pins. Quick Hitch requires 1-7/16” diameter

lower pin and 1-1/4” diameter upper pin.

Our 3-Point Quick Hitch is designed to connect to a

Quick-Attach coupler making mounting and

dismounting your mower easier. The 3-Point Quick

Hitch is also designed to connect the mower to a

tractor’s 3-point linkage without the use of a Quick-

Attach Coupler.

BH20 Series 04/13

Operation Section 4-5

! DANGER

OPERATION

BH20 Series 04/13 Operation Section 4-6

OPERATION

Do not connect the PTO driveline to the tractor or operate the implement unless the

implement is securely connected to the tractor.

Never operate the Tractor and Mower if the Implement input driveline is directly connected

to the T

ractor transmission. Tractor braking distances can be substantially increased by

the momentum of the rotating Mower blades driving the Tractor transmission even though

the Tractor clutch has been disengaged. Install an over running clutch between the Tractor

PTO and the Mower driveline to prevent this potentially dangerous situation.

(S3PT-16)

2.6 Tire Spacing

Tractor tires should be set a minimum of 60”(1.5

mm) apart measured from inside of tire to inside of

tire. Refer to the tractor Operator’s Manual or

consult an authorized dealer for instructions to

change tractor tire spacing. OPS-R- 0062

3. GETTING ON AND OFF THE TRACTOR

Before getting onto the tractor, the operator must read and completely understand the implement and tractor

operator manuals. If any part of either manual is not completely understood, consult an authorized dealer for

a complete explanation. OPS-U- 0007

Do not mount or dismount the Tractor while the tractor is moving. Mount

the Tractor only when the Tractor and all movin

g parts are completely

stopped.

(SG-12)

3.1 Boarding the Tractor

Use both hands and equipped handrails and steps for support when boarding the tractor. Never use control

levers for support when mounting the tractor. Seat yourself in the operator’s seat and secure the seat belt

around you.

Never allow passengers to ride on the tractor or attached equipment. Riders can easily fall off and be

seriously injured or killed from falling off and being ran over. It is the operator’s responsibility to forbid all extra

riders at all times. OPS-U- 0008

OPERATION

BH20 Series 04/13 Operation Section 4-7

OPERATION

Never allow children to operate, ride on, or come close to the Tractor or

Implement. Usually, 16-17 year-old children who are mature and

responsible can operate the implement with adult supervision, if they

have read and understand the Operator’s Manuals, been trained in

proper operation of the tractor and Implement, and are physically large

enough to reach and operate the controls easily.

(SG-11)

Never allow children or other persons to ride on the Tractor or Implement.

Falling off can result in serious injury or death.

(SG-10)

3.2 Dismounting the Tractor

Before dismounting, park the tractor and implement on a reasonably level surface, apply the parking brake,

idle the engine down, disengage the PTO, and lower the implement to the ground. Shut down the tractor

engine according to the operator’s manual, remove the key, and wait for all motion to completely stop. Never

leave the seat until the tractor, its engine and all moving parts have come to a complete stop.

Use hand rails and steps when exiting the tractor. Be careful of your step and use extra caution when mud,

ice, snow or other matter has accumulated on the steps or hand rails. Use all handrails and steps for support

and never rush or jump off the tractor. OPS-U- 0009

BEFORE leaving the tractor seat lower the implement, set the parking

brake and/or set the tractor transmission in parking

gear, disengage the

PTO, stop the engine, remove the key, and wait for all moving parts to

stop. Place the tractor shift lever into a low range or parking gear to

prevent the tractor from rolling. Never dismount a Tractor that is moving

or while the engine is running. Operate the Tractor controls from the

tractor seat only.

(SG-9)

OPERATION

BH20 Series 04/13 Operation Section 4-8

OPERATION

4. STARTING THE TRACTOR

The operator must have a complete understanding of the placement, function, and operational use of all

tractor controls before starting the tractor. Review the tractor operator’s manual and consult an authorized

dealer for tractor operation instructions if needed.

Essential Tractor Controls:

• Locate the light control switch.

• Locate the engine shut off control.

• Locate the brake pedals and the clutch.

• Locate the PTO control.

• Locate the 3-point hitch control lever.

• Locate the hydraulic remote control levers.

Before starting the tractor ensure the following:

• Conduct all pre-start operation inspection and service according to the tractor operator’s manual.

• Make sure all guards, shields, and other safety devices are securely in place.

• The parking brake is on.

• The PTO control lever is disengaged.

• The 3-point hitch control lever is in the lowered position.

• The hydraulic remote control levers are in the neutral position.

• The tractor transmission levers are in park or neutral.

Refer to the tractor owner’s manual for tractor starting procedures. Only start the tractor while seated and

belted in the tractor operator’s seat. Never bypass the ignition switch by short circuiting the starter solenoid.

After the tractor engine is running, avoid accidental contact with the tractor transmission to prevent sudden

and unexpected tractor movement. OPS-U-0028

Never run the Tractor engine in a closed building or without adequate ventilation. The

exhaust fumes can be hazardous

to your health.

(SG-23)

Start tractor only when properly seated in the Tractor seat. Starting a

tractor in gear can result in injury or death. Read the Tractor operators

manual for proper starting instructions.

(SG-13)

5. CONNECTING THE MOWER TO THE TRACTOR

Use extreme caution when connecting the mower to the tractor. The mower should be securely resting at

ground level or setting on blocks. Keep hands and feet from under the mower deck and clear of pinch points

between the tractor hitch arms and mower pins. OPS-R-0001

Always shut the Tractor completely down, place the transmission in park, and set the

parking brake before you or anyone else attempts

to connect or disconnect the Implement

and Tractor hitches.

(S3PT-15)

OPERATION

BH20 Series 04/13 Operation Section 4-9

OPERATION

5.1 Connecting the Mower-Lift Type

1. Make sure the tractor is equipped with the

correct PTO shaft. Change shafts if needed.

2. Shorten or remove the tractor drawbar to avoid

interference when raising and lowering the

mower.

3. Board the tractor and start the engine. Position

the tractor to the mower with the 3-point lift

arms positioned at the same height and to the

outside of the mower hitch pins. Note: Set the

3-point lift control to “Position Control” so that

the lift arms maintain a constant height when

attaching the mower. See the tractor Operator’s

Manual for correct settings when attaching 3-

point equipment.

4. Turn off the tractor engine and dismount.

5. One lift arm at a time, align arm end hole

between the set of A-frame lift lugs. Insert hitch

pin through the lug and arm holes and insert

retaining pin into hitch pin.

6. Walk around to opposite side and repeat

procedure for remaining lift arm and hitch pin.

7. Extend or retract 3-point top link to align its end

hole with the holes of the mower’s top link.

Insert the top link hitch pin and insert retaining

pin into hitch pin.

8. Adjust any lower link check chains, guide

blocks, or sway blocks to prevent the mower

from swaying side to side and possible contact

with tractor rear tires.

OPERATION

BH20 Series 04/13 Operation Section 4-10

OPERATION

5.2 3-Point Quick Hitch

Our 3-Point Quick Hitch is designed to connect to a

Quick-Attach Coupler making mounting and

dismounting your mower easier. The 3-Point Quick

Hitch is also designed to connect the cutter to a

tractor’s three-point linkage without the use of a

Quick-Attach Coupler.

5.3 Connecting Mower - Lift Type (Quick Hitch)

Crushing Hazard between Quick-Hitch and Implement. Do not allow anyone to stand

between the Quick-Hitch and implement during hook-up operations. Never operate the

hydraulic 3-point lift controls while someone is directly behind the tractor.

1. Make certain the implement’s upper and lower

hitch pins are secured.

2. Lower the tractor’s 3-point lift until the three

Quick-Hitch hooks are lower than the

implements hitch pins. Carefully back the

tractor to align the Quick-Hitch hooks under the

implement’s hitch pins.

3. Slowly raise the tractor’s 3-point lift until the

lower Quick-hitch hooks lock into place over the

implement’s 3-point hitch pins.

IMPORTANT: Make certain the implement’s top 3-

point hitch pin is captured by the Quick-Hitch top 3-

point hook. If not consult your Quick Hitch manual

for required adjustment.

IMPORTANT: The Quick Hitch will move mower

further from tractor which will require checking the

following:

1. Driveline length

2. Tractor stability

NOTE: Offset Adapter Hitches are available to

position the mower to the left or right. Mowers with

Offset Adapter Hitches connect to the 3-point hitch

the same way as the mower A-frame. See Offset

Adapter Hitch in the Assembly Section for details to

equip the mower with this feature.

OPERATION

BH20 Series 04/13 Operation Section 4-11

OPERATION

5.4 Safety Tow Chain

If the mower is towed on a public roadway, a safety chain with tensile strength equal to or greater than the

gross weight of the mower must be connected between the tractor and mower. This will help control the

implement in the event the tongue becomes disconnected from the drawbar. Make sure the chain is attached

to a secure location on the tractor and not to an intermediate support.

After connecting both ends of the safety chain, drive the tractor to the right and left to check for proper chain

length. Adjust length as necessary and allow only enough slack in the chain to make a maximum turn in both

directions. When not in use, store the safety chain to protect it from mud or standing water by wrapping the

chain around the tongue. Replace the safety chain if one or more links or end fittings are broken, stretched or

otherwise damaged or deformed. OPS-U-0039

IMPORTANT: Scan this QR Code with your smart phone to link to the PAMI Safe

Implement Hitching Manual for more information on corre

ctly connecting

agricultural tractors to implements. Or type in your internet browser the following

web address: www.algqr.com/hme

Ops-0008-MISC

6. SETTING THE MOWER

Properly setting the cutting height is essential for efficient and safe operation. A properly set mower will make

a more uniform cut, distribute clippings more evenly, require minimal tractor work, and follow the contour of

uneven terrain. NOTE: Avoid very low cutting heights, striking the ground with the blades gives the most

damaging shock loads and will cause damage to the mower and drive. Blades contacting the ground may

cause objects to be thrown out from under the mower deck. Always avoid operating the mower at a height

which causes the blades to contact the ground. OPS-U- 0010

Never work under the Implement, the framework, or any lifted

component unless the Implement is securely supported o

r blocked up

to prevent sudden or inadvertent falling which could cause serious

injury or even death.

(SG-14)

OPERATION

BH20 Series 04/13 Operation Section 4-12

OPERATION

6.1 Setting Mower Height- Lift Type - (Standard or Quick Hitch)

1. Park the tractor and mower on level ground.

2. Using the 3-point hitch control lever, position

the front of the mower with the side skids 1”

less off the ground than desired cut height. For

example, for a 3” cut, position the skids 2” from

the ground. Set the 3-point control lever stop at

this position to maintain this height when

raising and lowering the mower.

3. Shut down the tractor and remove the key.

4. Adjust the mower deck front to rear by

extending or retracting the 3-point top link.

Always set front of deck 3/4” lower than rear for

best performance.

5. Level the mower side to side by manipulating

one lower lift arm length. On most tractors, at

least one of the lift arms is designed to allow for

manipulation of its length. Shortening or

extending will allow for deck leveling from side

to side.

6. Securely block up the mower at this height.

7. Remove the bolts securing the tailwheel beam

in position and allow the tailwheel to rest at

ground level. Align tailwheel beam between

nearest sets of holes in beam support brackets

and reinstall support bolts on each side of

beam. Tighten all bolts and nuts.

OPERATION

BH20 Series 04/13 Operation Section 4-13

OPERATION

8. Extend the tractor’s top 3-point link so that

when lifting the mower, the front of the deck will

raise 2 to 2½” before the tail wheel leaves the

ground. This will allow the mower to follow the

contour of uneven terrain.

Note: Install optional check chains when there is a

problem with the hydraulic 3-Point lift maintaining a

set height or when a constant pre-adjusted cut

height is required. See Check Chains in the

Assembly Section for this accessory.

OPERATION

BH20 Series 04/13 Operation Section 4-14

OPERATION

6.2 Setting Deck Pitch

Lower Horse Power - Better Fuel Efficiency

To increase fuel efficiency and lower horsepower

requirements for mower operation, the mower

should be operated with the deck approximately 3/4"

LOWER IN THE FRONT THAN THE REAR.

Operating the mower at this pitch will allow the

mower to cut the grass only once and requires less

work from the tractor.

Increase Mulching

To increase mulching of the grass or crop material

during mower operation, the mower should be

operated with the deck approximately 3/4" HIGHER

IN THE FRONT THAN THE REAR.

Operating the mower at this pitch will allow the

mower to cut the grass twice and can result in a

more even cut and improved distribution of the cut

material.

OPS-U-0041_B

7. DRIVELINE ATTACHMENT

The driveline yoke and tractor PTO shaft must be

dirt free and greased for attachment.

To connect the mower driveline to the tractor PTO

output shaft, pull the driveline yoke collar back and

align the grooves and splines of the yoke with those

of the PTO shaft. Push the driveline yoke onto the

PTO shaft, release the locking collar, and position

the yoke until the locking collar balls are seated

onto the PTO shaft. Push and pull the driveline

back and forth several times to ensure a secure

attachment. OPS-R-0003_A

OPERATION

BH20 Series 04/13 Operation Section 4-15

OPERATION

7.1 Driveline Length Check

1. Raise and lower cutter to determine position

with shortest distance between the tractor PTO

shaft and gearbox input shaft. Shut down tractor

PTO shaft and gearbox input shaft. Shut down

tractor leaving cutter in position of shortest

distance. Securely block cutter in position.

2. Pull driveline apart. Attach outer section to

tractor PTO shaft. Pull on driveline section to be

sure that yoke locks into place.

3. Hold driveline sections parallel to each other to

determine if too long. Each section should end

approximately 3” short of reaching universal

joint shield on opposite section. If too long,

measure 3” back from universal joint shield and

mark on opposite section.

4. Do this for both sections.

5. Raise and lower cutter to determine position

with greatest distance between PTO shaft and

gearbox input shaft. Shut down tractor leaving

cutter in position of greatest distance. Securely

block cutter in position.

When attaching the Implement input driveline to the Tractor PTO, it is important that the

connecting yoke spring activated locking collar

slides freely and the locking balls are seated

securely in the groove on the Tractor PTO shaft. Push and pull the driveline back and forth

several times to ensure it is securely attached. A driveline not attached correctly to the

Tractor PTO shaft could come loose and result in personal injury and damage to the

Implement.

(S3PT-17)

Before operating the Implement, check to make sure the Implement input driveline will not

bottom out or become disengaged. Bottoming out occurs when the inner shaft penetrates

the outer housing until the assembly becomes solid-it can shorten no more. Bottoming out

can cause serious damage to the Tractor PTO by pushing the PTO into the Tractor and

through the support bearings or downward onto the PTO shaft, breaking it off. A broken

driveline can cause personal injury.

(S3PT-18)

OPERATION

BH20 Series 04/13 Operation Section 4-16

OPERATION

6. Hold driveline sections parallel to each other

and check for minimum 6” overlap. If driveline

has been marked for cutting, overlap will be the

distance between two marks. if driveline has

less than minimum overlap, do not use. Contact

authorized Bush Hog dealer.

NOTE: If driveline is the correct length, omit the

following steps 8 - 11 and proceed to step 12.

7. Clamp driveline in a well padded vice to prevent

damage to the shield. Cut off shield where

marked.

8. Using cut off section of shield as a guide, cut

shaft the same amount.

9. Repeat steps for other driveline section.

OPERATION

BH20 Series 04/13 Operation Section 4-17

OPERATION

10. Deburr ends of driveline sections and clean

away all chips and filings.

11. Apply multi-purpose grease to inside of outer

driveline section. Assemble driveline and install

on tractor and cutter. Pull on each driveline

section to be sure yokes lock into place. Make

certain driveline shielding is in place and in

good condition.

12. Adjust lower lift arm(s) to level cutter right to

left. Refer to tractor operator’s manual for

instructions.

Before operating the Implement, check to make sure the Implement input driveline will not

bottom out or become disengaged. Bottoming out occurs when the inner shaft penetrates

the outer housing until the assembly becomes solid-it can shorten no more. Bottoming out

can cause serious damage to the Tractor PTO by pushing the PTO into the Tractor and

through the support bearings or downward onto the PTO shaft, breaking it off. A broken

driveline can cause personal injury.

(S3PT-18)

OPERATION

BH20 Series 04/13 Operation Section 4-18

OPERATION

7.2 Constant Velocity (CV) Driveline

For mowers equipped with a Constant Velocity (CV) driveline, the maximum turning angle between the tractor

and mower must be determined to ensure the joint angle does not over-extend which can cause CV joint

damage. Constant Velocity joints enable the driveline to operate smoothly with no vibrations and clattering at

angles up to 70°. Angles greater than 80° can result in mechanical damage to the CV joint and mower

driveline.

The Constant Velocity joint must be lubricated every 8 hours of operation as specified in the Maintenance

Section. Failure to properly lubricate the joint will result in accelerated wear and joint component failure.

CV Driveline Maximum Angle Check Procedure

With the mower attached to the tractor and the driveline disconnected from the tractor PTO stub make a

hard left turn until there is approximately a 1" clearance between the left rear tractor tire and mower frame or

tongue.

Stop and completely shut down the tractor. Place the tractor in Park and apply the Parking Brake before

dismounting.

Check the CV joint at this maximum turning radius by holding the driveline yoke above the PTO shaft and then

angle the CV joint to its maximum angle. A minimum difference of 10 degrees between the center line of the

yoke and the PTO shaft must be maintained to ensure the joint will not be over angled. If the joint cannot be

angled at least 10°, there is a potential problem of over-angling the joint while making sharp turns.

Solutions: To ensure the joint is not damaged, check the following:

Check the drawbar length to ensure that it is at the proper length for the RPM speed of the mower.

Move the tractor rear tires wider apart to limit the tractor turning radius.

Position the mower at multiple angles and perform the above procedure. Determine the sharpest turning

radius that maintains a safe operating angle and note this position to the operator. OPS-R-0006

OPERATION

BH20 Series 04/13 Operation Section 4-19

OPERATION

8. PRE-OPERATION INSPECTION AND SERVICE

Before each use, a pre-operation inspection and service of the implement and tractor must be performed.

This includes routine maintenance and scheduled lubrication, inspecting that all safety devices are equipped

and functional, and performing needed repairs. DO NOT operate the unit if the pre-operation inspection

reveals any condition affecting safe operation. Perform repairs and replacement of damaged and missing

parts as soon as noticed. By performing a thorough pre-operation inspection and service, valuable down time

and repair cost can be avoided. OPS-U-0029

Always disconnect the main PTO Driveline from the Tractor before performing service on

the Implement. Never work on the Implement with the tractor PTO driveline connected and

running. Rotating Parts, Blades or Drivelines could turn without warning and cause

immediate entanglement, injury or death.

(S3PT-11)

Periodically inspect all moving parts for wear and replace when

necessary with authorized service parts. Look for loose fasteners, worn

or broken parts, and leaky or loose fittings. Make sure all pins have

cotter pins and washers. Serious injury may occur from not maintaining

this machine in good working order.

(SG-21)

OPERATION

BH20 Series 04/13 Operation Section 4-20

OPERATION

8.1 Tractor Pre-Operation Inspection/Service

Refer to the tractor operator’s manual to ensure a

complete pre-operation inspection and scheduled

service is performed according to the

manufacturers recommendations. The following

are some of the items that require daily service and

inspection:

• Tire condition/air pressure

• Wheel lug bolts

• Steering linkage

• PTO shield

• SMV sign is clean and visible

• Tractor’s lights are clean and functional

• Tractor Seat belt is in good condition

• Tractor ROPS is in good condition

• ROPS is in the raised position

• No tractor oil leaks

• Radiator free of debris

• Engine oil level and condition

• Engine coolant level and condition

• Power brake fluid level

• Power steering fluid level

• Fuel condition and level

• Sufficient lubrication at all lube points

• Air filter condition OPS-U-0030

8.2 Mower Pre-Operation Inspection/Service

Before each mower use, a complete inspection and service is required to ensure the mower is in a good and

safe working condition. Damaged and/or broken parts should be repaired and/or replaced immediately. To

ensure the mower is ready for operation, conduct the following. OPS-R-0007

The operator’s manual and safety signs affixed on

the unit contain important ins

tructions on the safe

and proper use of the equipment. Maintain these

important safety features on the implement in good

condition to ensure the information is available to

the operator at all times.

• Ensure the manual canister is secured to the

equipment with the operator’s manual inside.

• Ensure all safety signs are in place and legible.

Replace missing, damaged, and illegible

decals. OPS-U- 0011

OPERATION

BH20 Series 0413 Operation Section 4-21

OPERATION

• Perform scheduled lubrication as detailed in

the maintenance section.

• Ensure all safety signs are in place and legible.

• Ensure the driveline is securely attached to

tractor. Make sure the driveline yoke locking

collar is securely seated in the grooves of the

PTO shaft by pushing and pulling the yoke

several times.

• Inspect that the 3-point hitch pins are the

proper size, correctly installed, and secured to

the tractor lift arms with retaining pins inserted.

OPS-R-0008_I

• Ensure deflectors and/or chainguards are in

position and not damaged. Replace worn,

broken, and missing pieces. OPS-R-0068

All Safety Shields, Guards and Safety devices including (but not

limited to) - the Deflectors, Chain Guards, Steel Guards, Gearbox

Shields, PTO integral shields, and Retractable Door Shields should

be used and maintained in good working condition. All safety

devices should be inspected carefully at least daily for missing or

broken components. Missing, broken, or worn items must be

replaced at once to reduce the possibility of injury or death from

thrown objects, entanglement, or blade contact.

(SGM-3)

OPERATION

BH20 Series 04/13 Operation Section 4-22

OPERATION

• Lift Type-Ensure the tailwheel support bolts are

properly installed and tightened.

• Inspect all bolts and screws and tighten to the

recommended torque. OPS-R-0039_H

• Ensure the tractor PTO master shield and the

mower slip clutch shield are in place, lowered,

and in good condition.

• Ensure the driveline integral shield is in good

condition and rotates freely.

• Ensure the driveline slip clutch (if equipped) is

properly adjusted. OPS-R-0039

• Inspect the gearbox oil level. A low oil level is a

warning sign that the gearbox may be cracked

or its seal is damaged and needs replacement.

• Ensure the gearbox vent is in place and free

from clogs. OPS-R-0040_B

OPERATION

BH20 Series 04/13 Operation Section 4-23

OPERATION

• Inspect blades and blade bolts for looseness

and excessive wear. Make sure the mower is

securely blocked up before crawling beneath.

Replace damaged, worn and missing blades as

complete sets to maintain rotary balance during

operation.

• Ensure blade pan nut is tightened with the

cotter pin inserted and spread. OPS-R-0041

8.3 Cutting Component Inspection

Inspect blade pan and blade assembly for the following:

OPS-U-0031

OPERATION

BH20 Series 0413 Operation Section 4-24

OPERATION

Operating the mower with loose blade hardware will damage the blade holder or blades and

can result in blade breakage or blade fastener failure. Broken blades or bolts can be thrown

out from under the mower for distances up to 300 feet. When the blades are replaced, the

fastening hardware must be replaced. Check and retighten the blade hardware after the

first eight hours of operation. In severe cutting conditions, recheck the blade carrier and

blade bolt torque every 50 hours.

To help prevent structural damage caused by loose hardware, tighten gearbox mounting

hardware as specified. Check the fastener torque after first 8 hours of use and every 50

hours thereafter.

OPERATION

BH20 Series 04/13 Operation Section 4-25

OPERATION

Inspect the Blades daily for abnormal wear. REPLACE BOTH BLADES on that carrier

IMMEDIATELY if either blade has:

• Become bent or deformed from it’s original shape or

• Any cracks are visible, or

• Deep gouges in the blade’s surface are present, or

• Gouges or chipped areas in the cutting edge are larger than 1/2”(12.7mm), or

• The material on the leading edge has been worn away by more than 1/2(12.7mm)”

Failure to replace abnormally worn blades may lead to catastrophic failure of the blades and ejection of the

broken part with tremendous force which may cause serious bodily injury or death. OPS-U-0032

OPERATION

BH20 Series 04/13 Operation Section 4-26

OPERATION

8.4 Blade Bolt Inspection

Inspect Blade Bolt Head daily for wear as followed:

Inspect the Blade Bolt Heads daily for abnormal wear. REPLACE BOTH BLADE BOLTS on

the Blades IMMEDIATELY if either blade bolts has:

• Visible cracks or

• If the recessed area on blade bolt is worn off or

• If Blade Bolt has gouges or chipped areas.

Failure to replace abnormally worn blade bolts may lead to catastrophic failure of the blades and ejection of

the broken part which may cause serious bodily injury or death.

Always replace Blade Bolts with new bolts whenever replacing the Blades. OPS-U-0037

OPERATION

BH20 Series 04/13 Operation Section 4-27

OPERATION

Rotary Mower PRE-OPERATION Inspection

Mower ID#________________

Date: ________________

Before conducting the inspection, make sure the tractor engine is off, all

rotation has stopped and the tractor is in park with the parking brake

engaged. Make sure the mower is resting on the ground or securely blocked

up and all hydraulic pressure has been relieved.

Make____________________ Shift ____________________

Operator’s Signature:

Item

Condition at

Start of Shift

Specific Comments if

not O.K.

The Operator’s Manual is in the canister on the mower

All safety decals are in place and legible

The tongue/hitch connection bolts & pins are tight

There are no cracks in tongue or hitch

The tow chain is secured to the tractor & mower

The hydraulic cylinders pins are tight

There are no leaking or damaged hoses

The mower deck is clear of cut grass and debris

Chain guards/deflectors are in place & in good condition

Driveline/gearbox shields are in good condition

Driveline clutches are in good condition; not frozen

Driveline telescoping members & U-joints are lubricated

Driveline yokes are securely attached to PTO & mower

Gearbox mounting bolts are tight

Gearbox oil is at the proper level

Blade carrier retaining nut is tight

Blades are not chipped, cracked or bent

Blade bolts are tight

Wheel lug nuts are tight

Transport locks are in good condition

DO NOT OPERATE an UNSAFE TRACTOR or MOWER

IMPORTANT: Scan

this QR Code for an

electronic copy of this

inspection sheet.

www.algqr.com/rmi

OPERATION

BH20 Series 04/13 Operation Section 4-28

OPERATION

DRIVING THE TRACTOR AND IMPLEMENT

Tractor PRE-OPERATION Inspection

Tractor ID#:________________________Make:________________________

Date:______________________________Shift:________________________

Before conducting the inspection, make sure the tractor engine is off, all

rotation has stopped and the tractor is in park with the parking brake

engaged. Make sure the implement is resting on the ground or securely

blocked up and all hydraulic pressure has been relieved.

Operator’s Signature:___________________________________________________

Item

Condition at

Start of Shift

Specific Comments if

not O.K.

The flashing lights function properly

The SMV Sign is clean and visible

The tires are in good condition with proper pressure

The wheel lug bolts are tight

The tractor brakes are in good condition

The steering linkage is in good condition

There are no visible oil leaks

The hydraulic controls function properly

The ROPS or ROPS Cab is in good condition

The seatbelt is in place and in good condition

The 3-point hitch is in good condition

The drawbar pins are securely in place

The PTO master shield is in place

The engine oil level is full

The brake fluid level is full

The power steering fluid level is full

The fuel level is adequate

The engine coolant fluid level is full

The radiator is free of debris

The air filter is in good condition

DO NOT OPERATE an UNSAFE TRACTOR or IMPLEMENT

OPERATION

BH20 Series 04/13 Operation Section 4-29

OPERATION

Safe tractor transport requires the operator possess a thorough knowledge of the model being operated and

precautions to take while driving with an attached implement. Ensure the tractor has the capacity to handle the

weight of the implement and the tractor operating controls are set for safe transport. To ensure safety while

driving the tractor with an attached implement, review the following. OPS-U- 0012

Never run the Tractor engine in a closed building or without adequate ventilation. The

exhaust fumes can be hazardou

s to your health.

(SG-23)

Transport only at speeds where you can maintain control of the

equipment. Serious accidents and injuries can result from operating this

equipment at high speeds. Understand the Tractor and Implement and

how it handles before transporting on streets and highways. Make sure the Tractor steering

and brakes are in good condition and operate properly.

Before transporting the Tractor and Implement, determine the proper transport speeds for

you and the equipment. Make sure you abide by the following rules:

Test the tractor at a slow speed and increase the speed slowly. Apply the Brakes smoothly

to determine the stopping characteristics of the Tractor and Implement. As you increase

the speed of the Tractor the stopping distance increases. Determine the maximum

transport speed not to exceed 20 mph (30 kph) for transporting this equipment.

Test the equipment at a slow speed in turns. Increase the speed through the turn only after

you determine that the equipment can be operated at a higher speed. Use extreme care

and reduce your speed when turning sharply to prevent the tractor and implement from

turning over. Determine the maximum turning speed for you and this equipment before

operating on roads or uneven ground.

Only transport the Tractor and Implement at the speeds which allow you to properly control

the equipment.

Be aware of the operating conditions. Do not operate the Tractor with weak or faulty brakes

or worn tires. When operating down a hill or on wet or rain slick roads, the braking distance

increases: use extreme care and reduce your speed. When operating in traffic always use

the Tractor’s flashing warning lights and reduce your speed. Be aware of traffic around you

and watch out for the other guy.

(SG-19)

OPERATION

BH20 Series 04/13 Operation Section 4-30

OPERATION

8.5 Starting the Tractor

The procedure to start the tractor is model specific.

Refer to the tractor operator’s manual for starting

procedures for your particular tractor. Consult an

authorized dealer if the starting procedure is

unclear. Ensure the 3-point control lever is in the

lowered position and the PTO is disengaged before

starting the tractor. OPS-U-0033

8.6 Brake and Differential Lock Setting

Make sure the tractor brakes are in good operating

condition. Tractor brakes can be set to operate

independently allowing single rear wheel braking

action or locked together to provide simultaneous

rear wheel braking. FOR MOST DRIVING AND

OPERATING CONDITIONS, THE BRAKE PEDALS

SHOULD BE LOCKED TOGETHER TO PROVIDE

THE MOST EFFECTIVE BRAKING ACTION.

Always disengage the tractor differential lock when

turning. When engaged the differential lock will

prevent or limit the tractor from turning. During

normal cutting conditions, locking the differential

provides no benefit and should not be used. OPS-

U- 0013

Be aware of the operating conditions. Do not operate the Tractor with weak or faulty brakes.

When operating down a hill or on wet or rain slick roads, the braking distance increases; use

extreme care and reduce your speed in these conditions. When operating in traffic, always

use the Tractor’s flashing warning lights and reduce your speed. Be aware of traffic around

you and watch out for the other guy.

OPERATION

BH20 Series 04/13 Operation Section 4-31

OPERATION

8.7 Raising the Mower

Using the tractor 3-point hitch control lever, raise

the mower off the ground about 6”, or just high

enough to clear any ground obstacles. When

raising the mower, make sure all connection points

are securely attached and at least 1” clearance is

maintained between the driveline and the deck. If

necessary, place an upper lift stop on the 3-point

hitch control lever to limit the height the mower can

be raised to avoid driveline damage

. OPS-R-0042

8.8 Driving the Tractor and Mower

Start off driving at a slow speed and gradually increase your speed while maintaining complete control of the

tractor and mower. Moving slowly at first will also prevent the tractor from rearing up and loss of steering

control. The tractor should never be operated at speeds that cannot be safely handled or which will prevent

the operator from stopping quickly during an emergency. If the power steering or engine ceases operating,

stop the tractor immediately as the tractor will be difficult to control.

Perform turns with the tractor and mower at slow

speeds to determine how the tractor with an

attached mower handles a turn. Determine the

safe speed to maintain proper control of the tractor

when making turns. When turning with a towed

implement, the overall working length of the unit is

increased. Allow additional clearance for the

mower when turning.

To avoid overturns, drive the tractor with care and

at safe speeds, especially when operating over

rough ground, crossing ditches or slopes, and

turning corners. Tractor wheel tread spacing

should be increased when working on inclines or

rough ground to reduce the possibility of tipping.

Use extreme caution when operating on steep

slopes. Keep the tractor in a low gear when going

downhill. DO NOT coast or free-wheel downhill.

OPS-R-0019

OPERATION

BH20 Series 04/13 Operation Section 4-32

OPERATION

8.9 Crossing Ditches and Steep Inclines

When crossing ditches with steep banks or going up

sharp inclines, it is possible that the main driveline

inner profile will penetrate into the outer housing to its

maximum depth until the assembly becomes solid

(driveline is at its extreme shortest length). This type

of abusive operation can cause serious damage to

the tractor and mower drive by pushing the PTO into

the tractor and through the support bearings or

downward onto the PTO shaft, breaking it off.

Damage resulting from over-collapse of the driveline’s inner profile and its outer housing

may allow the driveline to come loose from the Tractor which could cause bodily injury to the

operator or bystanders and/or extensive damage to the Tractor or Implement. OPS-R-0020

When confronted with an incline or ditch, do not

approach from an angle which is perpendicular or

straight on as damaged to over collapse of the

driveline may occur.

When crossing such terrain, the implement should

be fully lowered for a lower center of gravity and

added stability. OPS-R-0021

OPERATION

BH20 Series 04/13 Operation Section 4-33

OPERATION

Inclines and ditches should be approached along a

line which is at an angle as shown. This type of

path will reduce the possibility of over-collapse of

the driveline and resulting damage. If the gradient

is so steep that such an approach increases the

possibility of a tractor roll-over, select an alternate

crossing path.

When operating the tractor and mower across

slopes and inclines, through ditches, and other

uneven terrain conditions, it is important to maintain

sufficient deck to ground clearance. Blade contact

with the ground may cause soil, rocks and other

debris to be thrown out from under the mower

resulting in possible injury and/or property damage.

Ground contact also produces a severe shock load

on the mower drive and to the mower blades

resulting in possible damage and premature wear.

OPS-R-0022

9. OPERATING THE TRACTOR AND IMPLEMENT

THE OPERATOR MUST COMPLETELY UNDERSTAND HOW TO OPERATE THE TRACTOR AND

IMPLEMENT AND ALL CONTROLS BEFORE ATTEMPTING TO OPERATE. The operator must read and

understand the Safety and Operation Sections of the implement and tractor operator’s manuals. These

manuals must be read and explained to any operator who cannot read. Never allow someone to operate the

implement and tractor without complete operating instructions.

Before starting any operation, the operator must become familiar with the area to be worked in and any

obstacles and hazards contained within to ensure safety to the operator, bystanders, and equipment. Special

attention should be paid to foreign debris, rough terrain, steep slopes, and passersby and animals in the area.

OPS-U- 0015

Extreme care should be taken when operating near loose objects such

as gravel, rocks, wire, and other de

bris. Inspect the area before

mowing. Foreign objects should be removed from the site to prevent

machine damage and/or bodily injury or even death. Any objects that

cannot be removed must be clearly marked and carefully avoided by the

operator. Stop mowing immediately if blades strike a foreign object.

Repair all damage and make certain rotor or blade carrier is balanced

before resuming mowing.

(SGM-05)

OPERATION

BH20 Series 04/13 Operation Section 4-34

OPERATION

Many varied objects, such as wire, cable, rope, or chains, can become entangled in the

operating parts of the mower head. These items could then swing outside the housing at

greater velocities than the blades. Such a situation is extremely hazardous and could result

in serious injury or even death. Inspect the cutting area for such objects before mowing.

Remove any like object from the site. Never allow the cutting blades to contact such items.

(SGM-06)

9.1 Foreign Debris Hazards

Before mowing, inspect the area to make sure

there are no foreign objects that the mower blades

could hit or become entangled with. Remove all

foreign objects and debris. If objects are too big to

remove, mark them clearly and be sure to prevent

the mower blades from contacting them.

If you hit a solid object or foreign debris, stop the

mower and tractor at once. Immediately idle the

engine speed and disengage the PTO. Wait for all

mower rotating motion to stop, then raise the

mower and move the tractor and implement off the

object. Inspect the area and remove, or mark the

location of the debris. Inspect the condition of the

mower and make any needed repairs immediately.

Make sure the blades are not damaged and the

carrier is balanced before resuming operation.

Always wear your seat belt securely fastened and

only operate the tractor and mower with the ROPS

in the raised position. If the tractor or mower hits a

tree stump, rock, or bump, a sudden movement

could throw you off of the seat and under the

tractor and/or mower. The seat belt is your best

protection from falling off the tractor and the ROPS

provides protection from being crushed during a

tractor roll-over. OPS-R-0023

Remove Foreign Material

Raise Mower over solid objects

9.2 Bystanders/Passersby Precautions

If a bystander comes within 300 feet of the tractor while the mower is being operated, stop the tractor at once,

idle the engine and disengage the PTO. Do not engage the PTO again until all bystanders are well past the

300 foot distance. OPS-R-0024

OPERATION

BH20 Series 04/13 Operation Section 4-35

OPERATION

Rotary Mowers are capable under adverse conditions of throwing

objects for great distances (300 ft (100 m) or more) and causing serious

injury or death. Follow safety messages carefully.

STOP MOWING IF PASSERSBY ARE WITHIN 300 Feet (100 m) UNLESS:

-Front and Rear Deflectors, Chain Guards, or Bands are installed and in good, workable

condition;

-Mower sections or Wings are running close to and parallel to the ground without exposed

Blades;

-Passersby are outside the existing thrown-object zone;

-All areas have been thoroughly inspected and all foreign material such as rocks, cans,

glass, and general debris has been removed.

NOTE: Where there are grass and weeds high enough to hide debris that could be struck

by the blades, the area should be: inspected and large debris removed, mowed at an

intermediate height, inspected, closely with any remaining debris being removed, and

mowed again at desired final height. (This will also reduce power required to mow, reduce

wear and tear on the Mower drivetrain, spread cut material better, reduce streaking, and

make the final cut more uniform).

(SRM-01)

9.3 Engaging the Power Take Off (PTO)

Before engaging the PTO, make certain that the area is clear of bystanders and passersby. The implement

must be completely lowered and the deck positioned at a safe operating height. NEVER engage the PTO with

the implement in the raised position.

Set the tractor engine speed at approximately 1,000 RPM before engaging the PTO. Shift the PTO control to

the on position, and slowly increase the engine speed until the PTO is operating at the rated speed. If you

hear unusual noises or see or feel abnormal vibrations, disengage the PTO immediately. Inspect the

implement to determine the cause of the noise or vibration and repair the abnormality. OPS-U- 0027

Do not let the Blades turn when the Mower Deck is raised for any

reason, including clearance or for turning. Raising the Mower deck

exposes the

Cutting Blades which creates a potentially serious hazard

and could cause serious injury or even death from objects thrown from

the Blades.

(SRM-07)

Do not put hands or feet under mower decks. Blade Contact can result

in serious injury or even death. Stay away until all motion has stopped

and the decks are securely blocked up.

(SGM-09)

OPERATION

BH20 Series 04/13 Operation Section 4-36

OPERATION

9.5 Operating the Mower

Only operate the mower from the tractor operator’s seat with the seatbelt securely fastened. The tractor must

be equipped with a ROPS in the raised position or a ROPS cab.

The mower is designed to cut vegetation up to 2” in diameter. Sharp blades will produce a cleaner cut and

require less power. Travel at a speed that allows the mower sufficient time to cut through the vegetation and

maintain the PTO operating speed to prevent overloading the mower and tractor. Choose a driving pattern that

provides the maximum pass length and minimizes turning.

Under certain conditions, tractor tires may roll some grasses down preventing them from being cut at the same

height as the surrounding area. When this occurs, reduce the tractor ground speed while maintaining the

operating speed of the mower. A slower ground speed will permit grasses to at least partially rebound and be

cut. Taking a partial cut and/or reversing the direction of travel may also help produce a cleaner cut.

Avoid mowing in the reverse direction when possible. In situations where the mower must be backed to access

areas to be cut, make sure there are no persons or other foreign debris behind the mower before mowing in

reverse. When mowing in reverse, operate the tractor and mower at a reduced ground speed to ensure tractor

and mower control is maintained.

9.4 PTO RPM and Ground Speed

Ground speed for mowing will depend upon the height, type, and density of vegetation to be cut.

Recommended speed for efficient mower performance is between 2 and 5 mph(3-8 kph). Operate the mower

at its full rated PTO speed to maintain blade speed for a clean cut. Refer to the tractor operator’s manual or

the tractor instrument panel for the engine speed and gear to provide the required PTO and desired ground

speed. Make sure that the mower is operating at its full rated speed before entering the vegetation to be cut.

If it becomes necessary to temporarily regulate engine speed, increase or decrease the throttle gradually.

Ground speed is achieved by transmission gear selection and not by the engine operating speed. The

operator may be required to experiment with several gear range combinations to determine the best gear and

range which provides the most ideal performance from the mower and most efficient tractor operation. As the

severity of cutting conditions increase, the ground speed should be decreased by selecting a lower gear to

maintain the proper operating PTO speed. OPS-R-0025

Do not exceed the rated PTO speed for the Implement. Excessive PTO speeds can cause

Implement driveline or blad

e failures resulting in serious injury or death.

(SG-26)

Mow at the speed that you can safely operate and control the tractor and mower. The

correct mowing speed depends on terrain condition and grass type, density, and height of

cut. Normal ground speed range is from 2 to 5 mph(3-8 kph). Use slow mowing speeds

when operating on or near steep slopes, ditches, drop-offs, overhead obstructions, power

lines, or when debris and foreign objects are to be avoided.

(SGM-07)

Do not mow with two machines in the same area except with Cab tractors with the windows

closed.

(SGM-11)

OPERATION

BH20 Series 04/13 Operation Section 4-37

OPERATION

Mow only in conditions where you have clear visibility in daylight or with adequate artificial

lighting. Never mow in darkness or foggy conditions where you cannot clearly see at least

300 feet (90 m) in front and to the sides of the tractor and mower. Make sure that you can

clearly see and identify passersby, steep slopes, ditches, drop-offs, overhead obstructions,

power lines, debris and foreign objects. If you are unable to clearly see these type of items

discontinue mowing.

(SGM-1)

Avoid mowing in reverse direction when possible. Check to make sure there are no

persons behind the mower and use extreme care when maneuvering in reverse. Mow only

at a slow ground speed where you can safely operate and control the tractor and mower.

Never mow an area that you have not inspected and removed debris or foreign material.

(SGM-08)

Follow these guidelines to reduce the risk of equipment and grass fires

while operating, servicing, and repairing the Mower and Tractor:

-Equip the Tractor with a fire extinguisher in an accesible location.

-Do Not operate the Mower on a Tractor with an underframe exhaust.

-Do Not smoke or have an open flame near the Mower and Tractor.

-Do Not drive into burning debris or freshly burnt areas.

-Ensure slip clutches are properly adjusted to prevent excessive slippage and plate heating.

-Never allow clippings or debris to collect near drivelines, slip clutches, and gearboxes.

Periodically shut down the Tractor and Mower and clean clippings and collected debris from

the mower deck.

(SGM-12)

When you get to the end of a pass, slightly raise the

mower (2-4”) before turning. Never raise the

mower entirely while the blades are turning. If the

mower must be raised higher than 12” from ground

level, disengage the tractor PTO and wait for all

mower rotation to come to a complete stop before

proceeding to raise the mower.

When turning, the angle between the tractor and

mower should not be so great that a clattering of

the U-joints occurs. Sharp turns can cause

premature failure of the joints and place pressure

on the tractor PTO shaft and could cause extensive

mechanical damage to the mower and tractor.

OPS-R-0027_A

OPERATION

BH20 Series 04/13 Operation Section 4-38

OPERATION

Do not let the Blades turn when the Mower Deck is raised for any

reason, including clearance or for turning. Raising the Mower deck

exposes the Cutting Blades which creates a potentially serious hazard

and could cause serious injury or even death from objects thrown from

the Blades.

(SRM-07)

Large, dense, or wet vegetation may need to be

mowed in two or more passes to achieve a uniform

cut. In such conditions, raise the cutting height to

12” or more on the first pass

. OPS-R-0043

Then lower the mower to the desired height and

mow the vegetation a second time. If possible,

select a mowing pattern that is at a 90 degree angle

to the first pass to reduce streaking for a more

uniform cut. OPS-R-0044

Stay alert and watch for trees, low hanging limbs,

power lines, and other overhead obstacles and solid

ground objects while you are operating. Use care

to avoid hitting these items

. OPS-R-0028_A

OPERATION

BH20 Series 04/13 Operation Section 4-39

OPERATION

Do not mow, or drive the tractor into material that is burning, or areas that recently burnt and may contain hot

spots. Burning material, sparks, and coals could be thrown from the mower to areas of vegetation that might

ignite. Tire damage can occur when driving over hot material. Oil and grease on the tractor and mower could

ignite resulting in equipment destruction. Carry a fire extinguisher on the tractor at all times to extinguish

possible fires encountered

9.6 Right of Way (Highway) Mowing

• USE DOUBLE CHAIN GUARDS for highway, right-of-way, parks, greenbelt mowing, or all other mowing

where human dwellings, vehicles, or livestock could be within 300 feet of the mower.

• No shielding is 100% effective in preventing thrown objects. To Reduce Possibility of Injury:

1. MAINTAIN MOWER SHIELDING in good operational condition,

2. DAILY INSPECT the condition of the Thrown Object Guards, mower Side Skirts, and skid shoes:

Replace or repair worn or damaged guards.

3. DAILY INSPECT the condition of the Blades and Blade Bolts. Replace any cracked, worn, bent or

damage blades. Always replace blade bolts and nuts when replacing blades. Make sure the blade

bolts are properly tightened.

4. RAISE CUTTING HEIGHT to 6 INCHES minimum.

5. INSPECT AREA thoroughly before mowing to REMOVE potential THROWN OBJECT HAZARDS.

6. NEVER ALLOW BLADES to CONTACT SOLID OBJECTS like wire, rocks, posts, curbs, guardrails,

or ground while mowing.

ROTARY MOWERS CAN THROW OBJECTS 300 FEET OR MORE UNDER ADVERSE

CONDITIONS.

TO AVOID SERIOUS INJURY OR DEATH TO OPERATOR OR BYSTANDERS FROM THROWN

OBJECTS:

INSPECT AREA FOR POTENTIAL THROWN OBJECTS BEFORE MOWING:

• REMOVE debris, rocks, wire, cable, metal objects and other foreign material from area.

Wire, cable, rope, chains and metal objects can be thrown or swung outside deck with great velocity:

1. MARK objects that cannot be removed.

2. AVOID these objects when mowing.

STOP MOWING IF PASSERSBY IS WITHIN 300 FEET UNLESS:

• All THROWN OBJECT SHIELDING including Front and Rear Deflectors, Chain Guards, Steel Guards,

Bands, Side Skirts and Skid Shoes are in place and in good condition when mowing.

• Mower sections or wings are adjusted to be close and parallel to ground without exposing blades.

• MOWING AREA has been inspected and foreign materials and debris have been removed.

• PASSERSBY are inside enclosed vehicle. OPS-U-0040

OPERATION

BH20 Series 04/13 Operation Section 4-40

OPERATION

Never stand or allow another person to stand between a running Tractor and the Mower

when disconnecting the Implement from the Tractor 3-point hitch.

9.7 Shutting Down the Implement

To shut down attached mower head, first bring the

tractor to a complete stop. Decrease engine RPM

to idle then disengage cutterhead. The mower head

will come to a complete stop within a suitable

amount of time. Do not engage or disengage the

cutterheads at a high RPM unless there is an

emergency situation.

Park the tractor on a level surface, place the

transmission in park or neutral and apply the

parking brake, lower the attached implement to the

ground, shut down the engine, remove the key, and

wait for all motion to come to a complete stop

before exiting the tractor. OPS-U- 0016

10. DISCONNECTING THE MOWER FROM THE TRACTOR

Before disconnecting the mower, the PTO must be

disengaged and blade rotation at a complete stop.

Move the mower to a level storage location and

lower it to the ground. If the mower is not resting

securely on the ground, block the mower up

securely before attempting to disconnect it from

the tractor.

Use extreme care to keep feet and hands from

under the mower and clear of any pinch points

caused by the tractor hitch arms and mower pins.

OPS-R-0030_A

OPERATION

BH20 Series 04/13 Operation Section 4-41

OPERATION

Always shut the Tractor completely down, place the transmission in park, and set the

parking brake before you or anyone else attempts to connect or disconnect the Implement

and Tractor hitches.

(S3PT-15)

Never unhitch without using the Tongue Jack. The Tongue is very heavy. Attempting to lift

the Tongue without using the Tongue Jack could cause strains or other injury. Allowing the

tongue to fall suddenly and unexpectedly could result in crushing injury. Use the Tongue

Jack for lifting the Implement only. Overloading the Tongue Jack can cause failure with

possible serious bodily injury or even death.

(STI-04)

To disconnect the mower first extend the tractor 3-

point hitch top link to remove tension on the top link

hitch pin. When the pin is loose and easy to rotate,

remove the pin from the mower.

After disconnecting the 3 lift points, remove the

mower driveline from the tractor PTO shaft. Lay the

driveline down carefully to avoid damaging the

driveline or its shield. Do not let the driveline fall

into mud or dirt, which can contaminate the bearing

and shorten the life of the driveline. OPS-R-0031_N

OPERATION

BH20 Series 04/13 Operation Section 4-42

OPERATION

11. MOWER STORAGE

Properly preparing and storing the mower at the end of the season is critical to maintaining its appearance

and to help ensure years of dependable service. The following are suggested storage procedures:

• Thoroughly clean all debris off the mower to

prevent damage from rotting grass and

standing water.

• Lubricate all mower grease points and fill

gearbox oil levels as detailed in the

maintenance section.

• Tighten all bolts and pins to the recommended

torque.

• Check the mower for worn and damaged

parts. Perform repairs and make

replacements immediately so that the mower

will be ready for use at the start of the next

season.

• Store the mower in a clean, dry place with the

mower housing resting securely on blocks or

at ground level.

• Keep the driveline yoke from sitting in water, dirt and other contaminants.

• Use spray touch-up enamel where necessary to prevent rust and maintain the appearance of the mower.

It is critical that driveline clutches slip when an obstacle or heavy load is encountered to avoid mower and/or

tractor damage. If the mower sits outside for an extended period of time or is exposed to rain and/or humid

air, the clutch lining plates must be inspected to ensure they are not frozen together from rust or corrosion. If

the mower has been exposed to such conditions, at the start of each mowing season, and any time it is

suspected that the slip clutch plates may be frozen together, readjust the slip clutch as detailed in Seasonal

Clutch Maintenance of the maintenance section in this manual. OPS-R-0032_A

Never allow children or other persons to ride on the Tractor or Implement.

Falling off can result in serious injury or death.

(SG-10)

12. TRANSPORTING THE TRACTOR AND IMPLEMENT

Inherent hazards of operating the tractor and implement and the possibility of accidents are not left behind

when you finish working in an area. Therefore, the operator must employ good judgement and safe operation

practices when transporting the tractor and implement between locations. By using good judgement and

following safe transport procedures, the possibility of accidents while moving between locations can be

substantially minimized. OPS-U- 0017

OPERATION

BH20 Series 04/13 Operation Section 4-43

OPERATION

Before transporting the tractor and mower, idle the

tractor engine, disengage the PTO and wait for all

mower moving parts to come to a complete stop.

Once all mower parts are completely stopped, raise

the mower to transport height. NOTE: When

raising the mower, maintain 1” clearance between

the driveline and mower deck. If additional mower

deck height is needed for safe transport, disconnect

the driveline from the tractor and secure its end to

the mower deck. The mower can then be raised to

the maximum lift height. OPS-R-0033_A

If the tractor’s hydraulic pump is not independent of

the tractor PTO, or if the tractor PTO has to be run

to have hydraulic power, disconnect the mower

driveline from the tractor PTO output shaft. Secure

the driveline to the mower deck to prevent driveline

damage or loss during transport. OPS-R-0034

12.1 Tire and Wheels

Laminated Sectional Tires are designed for conditions where puncture proof performance is required and

the mower will not be transported for long distances on roadways. Transport speed for laminated tires should

not exceed 15 MPH. Excessive speed can cause damage to the machine and tire sections. Sectional tires

must be installed such that the rubber segments lay with the ground.

OPS-R-0035_A

OPERATION

BH20 Series 04/13 Operation Section 4-44

OPERATION

12.2 Transporting on Public Roadways

Extreme caution should be used when transporting the tractor and implement on public roadways. The tractor

must be equipped with all required safety warning features including a SMV emblem and flashing warning

lights to alert drivers of the tractor’s presence. Remember that roadways are primarily designed for

automotive drivers and most drivers will not be looking out for you, therefore, you must look out for them.

Check your side view mirrors frequently and remember that vehicles will approach quickly because of the

tractor’s slower speed. Be extremely cautious when the piece of equipment that you are towing is wider than

the tractor tire width and/or extends beyond your lane of the road.

Make sure that a proper size safety tow chain is secured between the tractor and implement before entering a

public road. OPS-U- 0019

Make certain that the “Slow Moving Vehicle” (SMV) sign is installed in

such a way as to be cl

early visible and legible. When transporting the

Equipment use the Tractor flashing warning lights and follow all local

traffic regulations.

(SG-6)

The SMV (Slow-Moving Vehicle) emblem is

universal symbol used to alert drivers of the

presence of equipment traveling on roadways at a

slow speed. SMV signs are a triangular bright

orange with reflective red trim for both easy day

and night visibility. Make sure the SMV sign is

clean and visible from the rear of the unit before

transporting the tractor and implement on a public

roadway. Replace the SMV emblem if faded,

damaged, or no longer reflective. OPS-U- 0020

Make sure that all tractor flashing warning lights,

headlights, and brake/tail lights are functioning

properly before proceeding onto public roads. While

newer model tractors have plenty of lighting to

provide warning signals and operating lighting, most

older models are only equipped with operating lights.

Consult an authorized tractor dealer for lighting kits

and modifications available to upgrade the lighting on

older tractor models. OPS-U- 0021

OPERATION

BH20 Series 04/13 Operation Section 4-45

OPERATION

12.3 Hauling the Tractor and Implement

Before transporting a loaded tractor and implement, measure the height and width dimensions and gross

weight of the complete loaded unit. Ensure that the load will be in compliance with the legal limits set for the

areas that will be traveled through

Use adequately sized and rated trailers and equipment to transport the tractor and implement. Consult an

authorized dealer to determine the proper equipment required. Using adequately sized chains, heavy duty

straps, cables and/or binders, securely tie down both the front and rear of the tractor utilizing the proper tie

down locations as specified by the tractor manufacturer.

Arrange the chains so that when tightened, the chains are pulling downward and against themselves. Carefully

tighten the securing chains or other fasteners using boomers or binders to apply maximum tension. Use

extreme care when attaching and removing the securing devices as the extreme tension involved when

released has the potential to inflict serious injury.

While hauling the tractor and implement, make occasional stops to check that the tractor and implement have

not moved or shifted and that the securing chains have maintained tension. If during transport a hard braking,

sharp turning, or swerving action was performed, stop at the next safe location to inspect the security of the

load.

When operating on public roads, have

consideration for other road users. Pu

ll to the side

of the road occasionally to allow all following traffic

to pass. Do not exceed the legal speed limit set in

your country for agricultural tractors. Always stay

alert when transporting the tractor and implement

on public roads. Use caution and reduce speed if

other vehicles or pedestrians are in the area. OPS-

U- 0022_A

Reduce speed before turning or applying the brakes.

Ensure that both brake pedals are locked together

when operating on public roads. OPS-U- 0023

OPERATION

BH20 Series 04/13 Operation Section 4-46

OPERATION

13. TROUBLESHOOTING GUIDE

Problem Possible Cause Remedy

Uneven Cut Excessive ground speed. Reduce ground speed.

Blades worn, dull, or bent. Replace blades.

(Refer to “Maintenance” section).

Mower not level side to side. Adjust. (Refer to “Assembly” section)

Improper height adjustment. Adjust Mower height.

(Refer to “Assembly” section)

Low tractor tire pressure on Adjust tire pressure.

one side (Refer to your tractor

operator's manual)

Turning too fast. Reduce ground speed when turning.

Tractor tires push grass down. Adjust your tractor wheel spacing.

(Refer to “Operation” section)

Damaged Mower pan. Repair or replace as necessary.

Uncut Material Excessive ground speed Reduce ground speed.

RPM too low Use full PTO speed.

(Refer to your tractor

operator's manual)

Improper blade for direction of cut. Install blades so rotation is correct.

Poor Shredding Excessive ground speed. Raise the front of Mower relative to the

rear to hold and circulate material

longer. (Refer to the “Operation

Section-Setting the Mower-Setting

Deck Height”) Reduce ground speed.

Cutting too high. Lower cutting height. (Refer to the

“Operation Section-Setting the Mower-

Setting Deck Pitch”)

Windrowing Material heavy and lush. Raise the front of Mower relative to the

or Uneven rear. (Refer to the “Operation Section-

Setting the mower-Setting Deck

Height”)

Excessive ground speed Reduce ground speed.

Conditions too wet. Wait for conditions to dry. Reduce

ground speed.

OPERATION

BH20 Series 04/13 Operation Section 4-47

OPERATION

Blade Bolts Working Loose Bolts not tightened. Tighten Bolts to 600 ft./lbs.

Bolt hole elongated or oversized. Replace Blade Carrier.

Lockwasher Broken. Replace Lockwasher.

Gearbox Noisy Low Lubricant. Check lubricant level.

Rough gears. Run in or change Gears.

Worn Bearing. Replace Bearing.

Gearbox Leaking Damaged Oil Seal. Replace Seal.

Bent Shaft. Replace Oil Seal and Shaft.

Oil Seal Race rough. Replace Shaft or repair Race.

Oil Seal installed wrong. Replace Seal.

Oil Seal not sealing in the housing. Replace Seal or use a sealant on O.D.

of Seal.

Oil level too high. Drain oil to proper level.

Gasket damaged. Replace Gasket.

Bolts loose. Tighten Bolts.

Sand hole in casting. Replace castings or gearbox.

Streaking Conditions Conditions too wet for cutting. Allow grass to dry before cutting. Slow

Blades unable to cut that part of ground speed of tractor but keep

grass pressed down by path of engine running at full PTO wpm.

tractor tires. Lowering the cutting height may help.

Dull blades. Sharpen or replace blades.

Height of cutter lower at rear or See Cutting Height Instructions.

front.

Gearbox Overheating Low on lubricant. Fill to level plug.

Improper type lubricant. Replace with proper lubricant.

Excessive trash build-up around Remove trash.

gearbox.

Bearing or gears set up improperly. Consult your Dealer.

Shear Pin Shears Tractor PTO not being run at Run at 540 RPM.

Excessively 540 RPM.

Heavy Material. Reduce ground speed. Raise cutting

height.

Not using proper pin. Replace only with recommended shear

pin.

PTO engaged at high engine RPM Idle engine to engage PTO

Cutting in rocky conditions Increase cutting height.

Blade carrier RPM too high. Check gearbox ratios.

Blades not properly heat treated. Consult your Dealer.

Maintenance Section 5-1

MAINTENANCE SECTION

MAINTENANCE

BH20 Series 04/13 Maintenance Section 5-2

MAINTENANCE

HAZARDS WITH MAINTENANCE OF IMPLEMENT

MAINTENANCE

BH20 Series 04/13 Maintenance Section 5-3

MAINTENANCE

Before operating your Rotary Cutter, make sure it is properly lubricated and thoroughly inspected. Only a

minimum of time and effort is required to regularly lubricate and maintain this machine to provide long life and

trouble free operation.

Always disengage the PTO before raising the Rotary Cutter for transporting or making

adjustments.

Lubrication

Do not let excess grease collect on or around parts, particularly when operating in sandy areas. The

illustrations below shows lubrication points (Figure Mnt-R-0333). The chart gives the frequency of lubrication

in hours, based on normal operating conditions. Severe or unusual conditions may require more frequent

lubrication.

Use Multi-Purpose Gear Oil when required in Gearbox. Use N.L.G.I #2 grease for all locations designated with

grease gun. Be sure to clean the fitting thoroughly before using grease gun. Failure to maintain proper

lubrication will result in damage to U-joints, gearbox, and/or driveshaft. Figure Mnt-R-0333

PARTS INFORMATION

Bush Hog mowers use balanced and matched system components for blade carriers, blades, cuttershafts,

knives, knife hangers, rollers, drivetrain components, and bearings. These parts are made and tested to Bush

Hog specifications. Non-genuine "will fit" parts do not consistently meet these specifications. The use of “will

fit” parts may reduce mower performance, void warranties, and present a safety hazard. Use genuine Bush

Hog mower parts for economy and safety.

(SPBH-1)

SEE YOUR BUSH HOG DEALER

MAINTENANCE

BH20 Series 04/13 Maintenance Section 5-4

MAINTENANCE

BH20 Series 04/13 Maintenance Section 5-5

MAINTENANCE

GEARBOX

The gearbox should be full (3 quarts) and not

require additional lubricant unless the box is

cracked or a seal is leaking. It is recommended that

the oil level dipstick (Figure MntP-R-0278) be

removed to check oil level after every 8 hours of

operation. If required, oil should be added until it

comes to proper level.

Recommended lubricant is EP80W-90 Gear Oil.

NOTE: Make sure mower is level when checking oil

in the gearbox.

Gearbox capacity is 3 quarts.

NOTE: Overfilling of Gearbox will cause pressure to build up and cause Grease Seals to leak.

TAIL WHEEL ASSEMBLY

Tail Wheel Bearings are packed at the factory with

heavy-duty bearing grease. Grease Fittings are

provided in the Wheel Hub and Tail Wheel Beam.

Grease after 8 hours of use. Figure MntP-R-0191.

MAINTENANCE

BH20 Series 04/13 Maintenance Section 5-6

MAINTENANCE

MAIN & JACKSHAFT DRIVELINE SHIELDS

To remove the main inner driveline shield, Remove the locking screws. Align the bearing tabs with the cone

pockets. FIGURE Mnt-0026. Remove the half-guard and remove the bearing ring. FIGURE Mnt-R-0012.

Inspect the driveline shield for worn areas or cracks. If the shield has any dents or cracks, replace the Shield.

While the Shields are off, examine the Driveline for signs of abnormal wear, bent or twisted shafts, or cracks in

the shafts or tubes. Check to see that the Drivelines telescope easily. If the Drivelines do not telescope

properly or show signs of abnormal wear, the shaft should be repaired or replaced.

To assemble the main inner driveline shield, grease the yoke groove and inner profile tube. Attach the bearing

ring in groove with recesses facing profile tube. FIGURE Mnt-0027. Slide on the half shield. Turn the cone until

it engages correctly. Install locking screws. FIGURE Mnt-0028.

IMPORTANT!

Check that Guard

Missing decal on

steel tube under

inner guard and

Rotating Driveline

Decal are firmly

affixed, undamaged

and readable. If not,

replace.

MAINTENANCE

BH20 Series 04/13 Maintenance Section 5-7

MAINTENANCE

MAIN CV DRIVELINE SAFETY SHIELD

To remove the outer CV cone, remove the locking screws from shield cone. Remove cone over yoke. Figure

Mnt-R-0038 Remove bearing ring and remove the locking screws from inner shield cone. Figure Mnt-R-0038.

Turn inner cone to assembly position and remove half shield. Remove bearing ring. FIGURE MNT-R-0038.

To assemble outer CV driveline, grease yoke groove and inner profile tube. Attach bearing ring on groove with

recesses facing profile tube. FIGURE MNT-R-0039. Slide on half shield with cone. Turn cone until it engages

correctly. FIGURE MNT-R-0039. Tighten locking screws. Grease bearing groove in double yoke. FIGURE

MNT-R-0039. Insert bearing ring. Slide guard cone for double yoke over cam from the connecting end. Make

sure holes for screws are visible. FIGURE MNT-R-0039. Tighten locking screws. FIGURE MNT-R-0039.

IMPORTANT!

Check that Guard

Missing decal on

steel tube under

inner guard and

Rotating Driveline

Decal are firmly

affixed, undamaged

and readable. If not,

replace.

MAINTENANCE

BH20 Series 04/13 Maintenance Section 5-8

MAINTENANCE

BLADE SERVICING

Inspect blades before each use to determine that they are properly installed and in good condition. Replace

any blade that is bent, excessively nicked, worn, or has any other damage. Small nicks can be ground out

when sharpening.

Use only original equipment blades on this cutter. They are made of special heat-treated

alloy steel. Substitute blades may not meet specifications and may fail in a hazardous

manner that could cause injury.

Replace bent or broken blade with new blades. NEVER ATTEMPT TO STRAIGHTEN OR

WELD ON BLADES SINCE THIS WILL LIKELY CRACK OR OTHERWISE DAMAGE THE

BLADE WITH SUBSEQUENT FAILURE AND POSSIBLE SERIOUS INJURY FROM

THROWN BLADES.

(SGM-10)

• Manually wiggle the blade carriers to check for any looseness.

• Retighten any loose parts.

• Recheck torque every 50 hours.

Operating with loose blade hardware will damage the blade holder and blades. Whenever

the blades have been removed or replaced, the hardware must be retightened after the first

eight hours of operation. On new units check blade hardware and the blade nut torque after

first 8 hours.

Operating with loose blade holder will damage the blade holder and output shaft, two initial

tightenings are required. Retighten after one hour and again after the day of operation. In

severe cutting conditions or commercial use, a daily inspection is required.

To help prevent structural damage caused by loose hardware, tighten gear case hardware

as specified. Check torque after first 8 hours of use and every 50 hours thereafter.

NOTE: Correct Blade Rotation is counter-clockwise viewed from the top.

Inspect Blades daily for normal wear. If Blades have a notch worn into the leading worn into

the leading edge at the lower bend more than 1/2” DEEP (due to running in gravel and/or

the ground), REPLACE BOTH BLADES ON THAT CARRIER IMMEDIATELY. Failure to

replace such abnormally worn blades may lead to catastrophic failure of the blade and

ejection of the broken part with tremendous force which may cause bodily injury or death.

NOTE: Replace Blades in pairs after no more than 1/2” notch wear.

IMPORTANT: Scan this QR Code with your smart phone to link to the ADMA

Driveline Safety Manual for more information on the safe use of a driveline during

normal operation and maintenance. Or type in your internet browser the following

web address: www.algqr.com/dme

Ops-0009-MISC

MAINTENANCE

BH20 Series 04/13 Maintenance Section 5-9

MAINTENANCE

BLADE SHARPENING

When sharpening blades, grind each blade the same amount to maintain balance. Follow

original sharpening pattern as shown in Figure Mnt-R-0008. Always sharpen blades by

grinding. Always sharpen both blades at same time to maintain balance. The difference in

blade weights should not exceed 1 ounce. Unbalanced blades will cause excessive

vibration which can damage gear box bearings. Vibration may also cause structural cracks

in cutter housing. DO NOT heat and pound out edge. Do not sharpen blade to a razor edge,

but leave a 1/16” blunt edge. Do not sharpen back side of blade.

Avoid personal injury. Always block the cutter up to prevent if from falling when the blades

and/ or carrier are being serviced.

BLADE CARRIER REMOVAL

Remove cotter pin and loosen slotted nut on gearbox shaft. Loosen but do not remove the nut until the blade

carrier is loosened. Use a suitable 2 jaw gear puller to pull carrier off tapered gearbox shaft. If gear puller is not

available use long bar inserted through blade bolt access hole with end against rotor bar. Strike opposite end of

bar with sledge hammer. Rotate blade carrier 180 degrees and repeat process until carrier breaks loose.

MAINTENANCE

BH20 Series 04/13 Maintenance Section 5-10

MAINTENANCE

BLADE CARRIER INSTALLATION

Clean the splines on both the blade carrier and output shaft. Position carrier on the gearbox output shaft and

install special washer nut.

Tighten nut holding blade carrier to minimum 450 ft. pounds, strike the carrier near the hub several times with a

heavy hammer to seat the hub. Use a suitable spacer over the nut to prevent damage to the nut and threads.

Retighten the nut to 450 ft. pounds. Install cotter pin and spread.

Operating the mower with a loose blade pan or holder can damage the taper connection on

the gearbox output shaft. To ensure proper seating between the blade holder and output

shaft, check and tighten the retaining nut after the first day of operation. Recheck the blade

carrier attachment each morning before operating. Grasp the carrier firmly with both hands

and try to push and pull the carrier with one hand while pulling and pushing with the other

hand to try to rock or oscillate the blade carrier. If the carrier is loose, retighten the retaining

nut before operating the mower.

Always recheck gearbox output shaft slotted blade carrier retaining nut torque after a few

hours operation.

Avoid personal injury. Do not work under cutter without support blocks to keep frame from

falling.

BLADE REMOVAL

Remove lockwasher and nut from blade bolt through inspection hole in deck of mower near the gearbox to

remove blades for sharpening or replacement. See Figure MntP-R-0057. Always replace lockwasher and nut

when replacing blade bolt. When installing blades be sure and check blade bolt pivot diameter for wear.

Replace bolt if worn more than 1/4 inch at any point. Tighten nut to 600 ft. lbs.

MAINTENANCE

BH20 Series 04/13 Maintenance Section 5-11

MAINTENANCE

SLIP CLUTCH OPERATIONAL CHECK

NOTE: After implement has been stored for 30 days or more, perform the following operational check:

1. Loosen eight nuts retaining clutch springs 1/3 turn or until spring can be turned with fingers.

2. With tractor at idle speed, engage tractor PTO drive for 2-3 seconds. Clutch should lip without turning

blades. If clutch does not slip, contact your authorized Bush Hog dealer.

3. Retighten nuts to within 1/64” of original position. Initial spring length is shown in Figure Mnt-R-0478.

Overtightening spring nuts may cause damage to implement and/or tractor due to incorrect

slip clutch torque setting. Always follow the proper adjustment procedure.

SLIP CLUTCH ADJUSTMENT

The slip clutch is factory present to the correct torque for protecting implement and tractor. Periodic adjustment

is recommended. Should adjustment be needed, first check to be sure all spring lengths are the same. Initial

spring length is shown in Figure Mnt-R-0475. If necessary, adjust nut on any spring that is unequal. Adjust all

eight spring retaining nuts 1/3 of a turn (2 flats on a nut) and check clutch slippage. If further adjustment is

necessary, do so in 1/3 turn increments. Adjust only to provide sufficient torque to prevent slippage under

normal conditions. Occasional slippage is normal for driveline protection. If satisfactory results cannot be

obtained, consult you Bush Hog dealer.

Do not overtighten nut and cause spring to become solid as this will cause shaft to fail.

Model

COMER CLUTCH

SPRING LENGTH SETTING

BH25 1.25“ (31.8 mm)

BH26 1.25” (31

.8 mm)

BH27 1.27“ (32

.2 mm)

All Safety Shields, Guards and Safety devices including (but not

limited to) - the Deflectors, Chain Guards, Steel Guards, Gearbox

Shields, PTO integral shields, and Retractable Door Shields should

be used and maintained in good working condition. All safety

devices should be inspected carefully at least daily for missing or

broken components. Missing, broken, or worn items must be

replaced at once to reduce the possibility of injury or death from

thrown objects, entanglement, or blade contact.

(SGM-3)

MAINTENANCE

BH20 Series 0413 Maintenance Section 5-12

MAINTENANCE

STORAGE

Your rotary cutter represents an investment from which you should get the greatest possible benefit. Therefore,

when the season is over, the cutter should be thoroughly checked and prepared for storage so that a minimum

amount of work will be required to put it back into operation for the next season. The following are suggested

storage procedures:

1. Thoroughly clean the cutter.

2. Lubricate the cutter as covered in Maintenance Section.

3. Tighten all bolts and pins to the recommended torque.

4. Check the cutter for worn or damaged parts. Make replacements immediately.

5. Place driveline in storage position resting on bracket.

6. Store the cutter in a clean, dry place with the cutter housing resting on blocks.

7. Use spray touch-up enamel where necessary to prevent rust and maintain the appearance of the cutter.

PROPER TORQUE FOR FASTENERS

The chart lists the correct tightening torque for fasteners. When bolts are to be tightened or replaced, refer to

this chart to determine the grade of bolts and the proper torque except when specific torque values are

assigned in manual text.

RECOMMENDED TORQUE IN FOOT POUNDS UNLESS OTHERWISE STATED IN THE MANUAL*

NOTE: These values apply to fasteners as received from supplier, dry or when lubricated with normal engine

oil. They do not apply if special graphited or molydisulphide greases or other extreme pressure lubricants are

used. This applies to both UNF fine and UNC coarse threads.

MAINTENANCE

BH20 Series 04/13 Maintenance Section 5-13

MAINTENANCE

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-26

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-25

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-24

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-23

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-22

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-21

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-20

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-19

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-18

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-17

Descripción de Calcomanía

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-16

INFORMACIÓN DE PARTES

NOTA: Si necessita un manual completamente en español por favor de ponerse en contacto a;

Translations, dirección 1502 E. Walnut Street Seguin, TX 78155; Fax: (830) 372-9529

INFORMACIÓN DE PARTES

Las cortadoras BUSH HOG usan balanciadas y componentes de systema seleccionado para los portadores

de cuchillas, cuchillas, eje de cortar, navaja, suspensiones de navajas, los rodillos, los componentes de línea

motriz, y cojinetes. Estas partes son echas y probadas a la especificaciones de BUSH HOG. Partes que no

son auténticas no regularmente llegan con estas especificaciones. El uso de partes que no son auténticas

puede reducir el funcionamiento de la cortadora, anular garantias, y presentar un peligro de s eguridad. Use

partes de cortadora auténticas de BUSH HOG por economía y seguridad.

(SPBH-1 SP)

CONTACTE A SU DISTRIBUIDOR BUSH HOG

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-15

SAFETY

RIESGOS CON EL MANTENIMIENTO DEL IMPLEMENTO

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-14

SAFETY

RIESGOS CON EL MANTENIMIENTO DEL IMPLEMENTO

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-13

SAFETY

RIESGOS EN TRANSPORTE

PARA EVITAR LESIONES GRAVES O LA MUERTE AL REMOLCAR O TRANSPORTAR EQUIPOS:

• MANTENGA la velocidad de transporte POR DEBAJO DE 20 millas por hora para mantener el control del equipo.

• REDUZCA LA VELOCIDAD en terreno inclinado, en las curvas y en condiciones de remolque desfavorables.

• NO REMOLQUE camiones u otros vehículos

• USE un tractor de tamaño adecuado y equipado en función del equipo de remolque.

• SIGA todas las reglamentaciones de tránsito locales.

REQUISITOS DEL TRACTOR PARA REMOLCAR O TRANSPORTAR IMPLEMENTOS:

• SÓLO TRANSPORTE en el tractor con el mecanismo ROPS (antivuelco) en posición elevada.

• USE un tractor de tamaño adecuado y equipado, que supere el peso del implemento en al menos un 20%

• MANTENGA EL 20% del peso del tractor en las ruedas frontales para mantener la dirección en forma segura.

ANTES DE TRANSPORTAR O REMOLCAR EL IMPLEMENTO:

INSPECCIÓN DEL TRACTOR:

• VERIFIQUE la dirección y los frenos para asegurarse el correcto funcionamiento y las condiciones adecuadas.

• VERIFIQUE LLEVAR EL AVISO DE SMV, los reflectores y las luces de advertencia para la adecuada operación y

visibilidad detrás de la unidad.

• VERIFIQUE que no haya impedimentos a la visión mientras conduce, en el tractor, la cabina o el implemento,

sentado en el asiento del tractor.

• AJUSTE su posición de conducción, los espejos y el transporte del implemento para tener una visión clara para

condiciones de conducción y tránsito.

PREPARE EL IMPLEMENTO PARA EL TRANSPORTE O EL REMOLQUE:

• DESAPLIQUE EL PTO

• ELEVE LA CORTADORA

• QUITE todo material cortado que se acumule en la plataforma de la cortadora.

CORTADORA AL REMOLQUE-INSTALE

TRABAS DE TRANSPORTE Y CADENA DE SEGURIDAD:

• INSTALE los paradores o pernos de transporte en el cilindro de eje central.

• AJUSTE LA CADENA DE SEGURIDAD del implemento al tractor.

DETERMINAR LAS CARACTERÍSTICAS DE DETENCIÓN DEL TRACTOR Y EL IMPLEMENTO PARA EL

TRANSPORTE O REMOLQUE:

PRUEBAS DE FRENADO:

• FRENE a velocidades en aumento.

• Observe las distancias de DETENCIÓN con el aumento de velocidad.

• DETERMINE la velocidad de transporte máxima segura que no supere las 20 millas por hora

DETERMINE LA VELOCIDAD DE GIRO MÁXIMA ANTES DE OPERAR EN CARRETERAS O TERRENO

IRREGULAR:

• PONGA A PRUEBA el equipo aumentando lentamente la velocidad en las curvas para determinar si se puede

operar a mayor velocidad.

• USE MENORES velocidades de giro en las curvas pronunciadas para evitar el vuelco.

AL REMOLCAR O TRANSPORTAR EL EQUIPO:

• Siempre USE EL CINTURÓN DE SEGURIDAD al operar o transportar la cortadora.

• USE bajas velocidades para evitar el vuelco con el implemento elevado.

• USE bajas velocidades y dirección gradual en las curvas, colinas, o en superficies irregulares o poco uniformes, y en

carreteras mojadas.

• ENCIENDA LAS BALIZAS DE ADVERTENCIA del tractor.

•

TENGA EN CUENTA el espacio necesario para el vaivén del implemento en las curvas. PN TH02 SP

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-12

SAFETY

RIESGOS ELÉCTRICOS Y DE FUEGO

PARA EVITAR LESIONES GRAVES O LA MUERTE POR CONTACTO ELÉCTRICO AL

TRABAJAR CERCA DE CABLES ELÉCTRICOS, LÍNEAS DE GAS Y DE SERVICIOS:

• INSPECCIONE el área de corte para que no interfiera con cables de alimentación eléctricos subterráneos,

obstrucciones, líneas de gas, cables y servicios, estructuras municipales o de otro tipo.

• MANTENGA todas las alas elevadas a 3 metros (10 pies) o una mayor distancia de todos los cables de

alimentación y obstrucciones elevadas.

• NO ponga en contacto la cortadora con ninguna estructura u obstrucción de servicios o municipales.

• LLAME AL 811 y al 1-800-258-0808 para identificar cables de servicios subterráneos.

PAUTAS DE PREVENCIÓN DE INCENDIOS durante la operación, reparación y servicio de la cortadora y el

tractor, a fin de reducir el riesgo de incendio del equipo y de la vegetación:

• El tractor debe estar EQUIPADO CON MATAFUEGOS

• NO OPERE la cortadora sobre un tractor equipado con escape debajo del bastidor

• NO FUME ni acerque fuego directo a la cortadora o el tractor

• NO CONDUZCA sobre residuos encendidos o en áreas recientemente quemadas

• EVITE LA FORMACIÓN DE CHISPAS al no permitir que la hoja de la cortadora entre en contacto con objetos

sólidos como metal o roca.

• AJUSTE LOS EMBRAGUES DESLIZANTES para evitar el deslizamiento excesivo y el calentamiento de la

placa del embrague.

•

LIMPIE todo resto de hierba o residuo acumulado alrededor de las líneas de conducción de la cortadora, los

embragues deslizantes y cajas de cambios.

• APAGUE EL MOTOR al cargar combustible.

PN EF02 SP

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-11

SAFETY

RIESGO DE FILTRACION DE ACEITE HIDRÁULICO DE ALTA PRESIÓN

PARA EVITAR LESIONES GRAVES O LA MUERTE POR PENETRACIÓN DE FILTRACIONES DE

ACEITE HIDRÁULICO DE ALTA PRESIÓN:

•NO OPERE el equipo con filtraciones de aceite o combustible.

• MANTENGA todas las mangueras hidráulicas, líneas y conexiones en BUEN ESTADO y AJUSTADAS antes de

aplicar presión al sistema.

• LIBERE LA PRESIÓN HIDRÁULICA antes de desconectar las líneas o trabajar en el sistema.

• QUITE y reemplace la manguera si sospecha que tiene filtraciones. Solicite al distribuidor que verifique si hay

filtraciones.

LAS FILTRACIONES DE LÍQUIDO DE ALTA PRESIÓN PUEDEN NO SER VISIBLES.

AL VERIFICAR FILTRACIONES HIDRÁULICAS Y TRABAJAR CERCA DE LOS SISTEMAS HIDRÁULICOS:

• SIEMPRE USE gafas de seguridad y guantes impenetrables.

• USE papel o cartón para verificar si hay filtraciones.

• NO USE las manos o partes del cuerpo para detectar filtraciones.

• MANTENGA las manos y el cuerpo LEJOS de los orificios de clavijas y boquillas de eyección de fluido hidráulico.

• El fluido hidráulico puede causar gangrena si no es extirpado quirúrgicamente de inmediato por un médico

especializado en este tipo de lesiones.

PN HP01 SP

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-10

SAFETY

RIESGO DEL CONTACTO A LAS CUCHILLAS DE CORTADORA

MANTÉNGASE LEJOS DE LAS CUCHILLAS GIRATORIAS PARA EVITAR LESIONES GRAVES

O LA MUERTE POR CONTACTO CON LA CUCHILLA:

• MANTÉNGASE LEJOS y NO ACERQUE LAS MANOS, LOS PIES y EL CUERPO a las cuchillas giratorias, líneas

de conducción y partes hasta que todos los elementos móviles se hayan detenido.

• NO ponga las manos o los pies debajo de las plataformas de la cortadora

• DETENGA las CUCHILLAS giratorias antes de elevar la plataforma de la cortadora o las alas

• DETENGA la cortadora, EXAMÍNELA Y PRESTE ATENCIÓN A LOS SONIDOS antes de acercarse a la cortadora

para asegurarse de que se haya detenido todo el movimiento giratorio.

PN MB01 SP

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-9

SAFETY

RIESGO DE ENREDO POR EL PTO

MANTÉNGASE ALEJADO DE LAS LÍNEAS DE CONDUCCIÓN Y OTROS ELEMENTOS

GIRATORIOS PARA EVITAR LESIONES GRAVES O LA MUERTE:

MANTÉNGASE LEJOS

y NO ACERQUE las manos, los pies y el cuerpo a las cuchillas giratorias, líneas de

conducción y partes hasta que todos los elementos móviles se hayan detenido.

• DETENGA la cortadora, EXAMÍNELA Y PRESTE ATENCIÓN A LOS SONIDOS antes de acercarse a la cortadora

para asegurarse de que se haya detenido todo el movimiento giratorio.

• LOS ELEMENTOS GIRATORIOS SIGUEN ROTANDO una vez apagada la PTO.

PROTECCIÓN DE LA PTO:

PARA EVITAR LESIONES GRAVES O LA MUERTE POR ENREDO AL OPERAR EL IMPLEMENTO:

• MANTENGA instalados los protectores, las cubiertas integrales de las líneas de conducción y las cubiertas de

entrada

• NO OPERE la cortadora si los protectores o cubiertas no están bien colocados o faltan.

• REEMPLACE O REPÁRELOS si faltan, están dañados o rotos

• SIEMPRE REEMPLACE LOS PROTECTORES que se han quitado para tareas de reparación o mantenimiento.

PARA EVITAR que la línea de conducción se rompa durante las operaciones:

• VERIFIQUE que la línea de conducción tenga el largo adecuado entre el eje de PTO y el eje de la caja de cambios

del implemento.

• Las líneas de conducción demasiado cortas se pueden soltar o romper.

• Las líneas de conducción demasiado largas pueden tocar el suelo.

Un ensamblaje telescópico de la línea de conducción que toque el suelo no se deslizará y se solidificará.

• Si la línea de conducción toca el suelo, puede atravesar los cojinetes de soporte y romper el eje de PTO.

• EVITE hacer curvas pronunciadas o elevar la cortadora a alturas que puedan hacer caer la línea de conducción.

• Lubrique los componentes telescópicos del eje de transmisión en forma semanal.

COMUNÍQUESE CON EL DISTRIBUIDOR

si la línea de conducción del implemento no coincide con el eje de

PTO del tractor:

• NO UTILICE UN ADAPTADOR DE PTO.

El uso de un adaptador de PTO puede causar vibración excesiva, caída de objetos, fallas de las cuchillas y el

implemento como consecuencia de la duplicación de la velocidad operativa. El aumento de la longitud de trabajo

puede exponer áreas desprotegidas de la línea de conducción.

PN PE01 SP

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-8

SAFETY

RIESGO DE ATROPELLO

PARA EVITAR LESIONES GRAVES O LA MUERTE POR CAÍDA DEL TRACTOR O ATROPELLO

DEL EQUIPO:

• USE tractores equipados con SISTEMA ANTIVUELCO (ROPS) y CINTURONES DE SEGURIDAD para las

operaciones de corte.

• MANTENGA EL SISTEMA ROPS trabado en posición vertical.

• SÓLO ENCIENDA el tractor sentado en el asiento del tractor.

• SIEMPRE ABRÓCHESE el cinturón de seguridad al operar el tractor y los equipos.

• SÓLO OPERE el tractor y el equipo sentado en el asiento del tractor.

• NUNCA LLEVE A OTRAS PERSONAS en el tractor o implemento.

AL SUBIR Y BAJAR DEL TRACTOR:

• • SÓLO suba o baje del tractor cuando éste y sus partes móviles estén detenidos.

• • APAGUE EL MOTOR Y LA TDF, coloque el freno de mano, descienda del implemento, espere a que se detengan

todas las partes móviles y quite la llave antes de bajarse del tractor.

PN RO01 SP

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-7

SAFETY

RIESGO DE OBJECTOS LANZADOS Continuado

OPERACIÓN DE LA CORTADORA:

• NO exceda la capacidad de corte nominal de la cortadora, ni corte elementos que no sean vegetación.

• USE CABINAS DE TRACTOR CERRADAS

cuando haya dos o más cortadoras operando en un mismo

sector.

• AJUSTE las secciones de la cortadora o la ala cercana y paralela al suelo sin exponer las cuchillas

• AJUSTE LA ALTURA de corte para EVITAR EL CONTACTO DE LAS CUCHILLAS con objetos sólidos,

como alambres, piedras, postes, cordones, guardarrailes y obstrucciones fijas.

• NO opere la cortadora con la(s) ala(s) elevada(s) o en posición de transporte.

• DETENGA LA CORTADORA de inmediato si las cuchillas entran en contacto con objetos pesados,

estructuras fijas, guardarrailes de metal y estructuras de cemento:

1. LAS CUCHILLAS PUEDEN FALLAR con el impacto y los objetos pueden ser arrojados a gran

velocidad.

2. INSPECCIONE y REEMPLACE las cuchillas dañadas.

3. VERIFIQUE el equilibrio del porta cuchillas y REEMPLÁCELO si está dañado.

• NO opere la cortadora en agua PARA EVITAR una posible FALLA DE LAS CUCHILLAS.

• EVITE OPERAR LA CORTADORA en reversa:

1. DETENGA EL PTO y retroceda la cortadora.

2. DESCIENDA la cortadora, encienda el PTO y corte hacia adelante.

• DETENGA EL PTO y las CUCHILLAS al elevar el implemento o la cortadora a posición de transporte.

• NO ENCIENDA EL PTO con la cortadora en posición de transporte.

• DETENGA la cortadora cuando se produzca VIBRACIÓN EXCESIVA:

1. DETENGA EL PTO Y EL MOTOR del tractor.

2. INSPECCIONE la cortadora para detectar la fuente de la vibración

3. REEMPLACE

toda parte dañada o las CUCHILLAS dobladas o dañadas. PN TO02-X SP

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-6

SAFETY

RIESGO DE OBJECTOS LANZADOS

LAS CORTADORAS GIRATORIAS PUEDEN ARROJAR OBJETOS A 90 METROS (300 PIES) O MÁS EN

CONDICIONES ADVERSAS.

PARA EVITAR LESIONES GRAVES O LA MUERTE AL OPERADOR O TRANSEÚNTES COMO CONSECUENCIA DE OBJETOS

ARROJADOS:

• MANTENGA a los transeúntes a 100 metros de distancia (300 pies)

NO OPERE LA CORTADORA SI HAY PERSONAS A MENOS DE 100 METROS(300 PIES), SALVO QUE:

• Todos los PROTECTORES CONTRA OBJETOS ARROJADOS estén colocados y en buen funcionamiento al operar la cortadora,

entre los que se incluyen los deflectores frontales y traseros, los protectores de cadena, los protectores de acero, las bandas, los

faldones laterales y las zapatas antideslizantes.

• Las partes de la cortadora o la ala estén ajustadas cerca y paralelas al suelo, sin exponer las cuchillas.

• Se ha inspeccionado el ÁREA DE CORTE y se han quitado todos los materiales extraños y residuos.

• LOS TRANSEÚNTES estén en el interior de un vehículo cerrado.

ANTES DE OPERAR LA CORTADORA, INSPECCIONE EL ÁREA PARA DETECTAR LA POSIBILIDAD DE OBJETOSQUE

PUEDAN SER LANZADOS:

• QUITE residuos, piedras, cables, alambres, objetos metálicos y cualquier otro objetos extraños del área.

Los alambres, cables, sogas, cadenas y objetos metálicos pueden ser arrojados o salir desprendidos de la plataforma a gran

velocidad:

1. MARQUE los objetos que no se puedan quitar.

2. EVITE estos objetos cuando use la cortadora.

INSPECCIÓN DEL ÁREA PARA DETECTAR HIERBA ALTA Y MALEZAS:

• INSPECCIONE Y QUITE cualquier residuo oculto de gran tamaño.

• PASE LA CORTADORA a una altura intermedia

• INSPECCIONE y quite el residuo restante

• PASE LA CORTADORA a la altura final

PROTECCIÓN CONTRA OBJETOS ARROJADOS DE LA CORTADORA:

• MANTENGA todos los protectores contra objetos arrojados en su lugar y en buen funcionamiento al operar la cortadora, entre los

que se incluyen los deflectores frontales y traseros, los protectores de cadena, los protectores de acero, las bandas, los faldones

laterales y las zapatas antideslizantes.

• NO OPERE LA CORTADORA si falta algún protector contra objetos arrojados, o si éstos están dañados.

DERECHO DE PASO (autopista) CON LA CORTADORA

• UTILICE PROTECTORES DE CADENA DOBLES para autopistas, derecho de paso, parques o cortes en cinturón verde donde

pueda haber viviendas, vehículos o ganado dentro de los 100 metros (300 pies) de la cortadora.

• Ninguna protección ofrece una eficacia del 100% en la prevención de objetos arrojados. Para reducir la posibilidad de que se pro-

duzcan lesiones:

1. MANTENGA LOS PROTECTORES DE LA CORTADORA, los faldones laterales, la zapatas antideslizantes y las cuchillas en

buen estado de funcionamiento,

2. ELEVE LA ALTURA DE CORTE a 15 CM (6 PULGADAS) como mínimo,

3. INSPECCIONE EL ÁREA con cuidado antes de pasar la cortadora para ELIMINAR el pos ble riesgo de OBJETOS

ARROJADOS,

4. NUNCA PERMITA QUE LAS CUCHILLAS EN MOVIMIENTO ENTREN EN CONTACTO CON OBJETOS SÓLIDOS como

alambres, piedras, postes, cordones, guardarrailes o el suelo.

PN TO02 SP

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-5

SAFETY

RIESGO DE APLASTAMIENTO

PARA EVITAR UNA LESIÓN GRAVE O LA MUERTE POR CAÍDA DEL TRACTOR, O EL APLASTAMIENTO,

VUELCO Y APLASTAMIENTO DE UN EQUIPO POR LA CAÍDA DE UNA ALA O UN IMPLEMENTO:

• USE tractores equipados con SISTEMA ANTIVUELCO (ROPS) y CINTURONES DE SEGURIDAD para las operaciones de

corte.

• MANTENGA EL SISTEMA ROPS trabado en posición vertical.

• SIEMPRE ABRÓCHESE el cinturón de seguridad al operar el tractor y los equipos.

• SÓLO OPERE el tractor y el equipo sentado en el asiento del tractor.

AL ELEVAR O DESCENDER EL IMPLEMENTO:

• Eleve o descienda SÓLO CUANDO ESTÉ SENTADO en el asiento del tractor, con el cinturón de seguridad ajustado.

• Eleve o descienda SÓLO cuando la lengüeta del implemento esté firmemente ajustada a la barra de tracción del tractor

PARA EVITAR el vuelco del implemento.

• MANTENGA A LOS TRANSEÚNTES FUERA del área de operación PARA EVITAR accidentes por aplastamiento.

Los equipos ELEVADOS se pueden caer por fallas mecánicas o hidráulicas o por un movimiento inesperado de la palanca de

control.

PARA EVITAR LA CAÍDA DEL EQUIPO al trabajar cerca o debajo de los componentes o implementos

elevados por un enganche de tractor de 3 puntos:

• SUJETE CON FIRMEZA o bloquee en posición vertical todos los equipos, alas y componentes elevados.

• BLOQUEE EN POSICIÓN VERTICAL y sujete con firmeza el equipo antes de poner las manos, los pies o el cuerpo debajo

de los equipos o componentes elevados.

AL ESTACIONAR el implemento y el tractor:

• DESCIENDA el implemento, TRABE o BLOQUEE las partes elevadas antes de alejarse del equipo.

• NUNCA deje un implemento sin atención en posición elevada.

PARA EVITAR LA CAÍDA O EL APLASTAMIENTO DE NIÑOS POR EL EQUIPO:

• NUNCA DEJE que los niños jueguen sobre el tractor o los implementos, ni en sus alrededores.

WHEN UNHITCHING IMPLEMENT:

AL DESENGANCHAR EL IMPLEMENTO:

• DESCIENDA el implemento, TRABE o BLOQUEE las partes elevadas antes de alejarse del equipo.

• USE el gato de la lengüeta para controlar el movimiento de la lengüeta del implemento

• USE el GATO de le lengüeta para elevar lengüetas de implementos pesados.

• EVITE recargar el gato para evitar falla al gato y una lesión al operador.

PN CH02 SP

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-4

SAFETY

SEGURIDAD DE CONECTAR O DESCONECTAR IMPLEMENTO

PARA EVITAR LESIONES GRAVES O LA MUERTE POR APLASTAMIENTO POR EL TRACTOR O

IMPLEMENTO:

• AL DAR MARCHA ATRÁS el tractor hacia el enganche del implemento:

• NO PERMITA QUE HAYA PERSONAS entre el tractor y el implemento

ANTES de conectar y desconectar el enganche del implemento:

• APAGUE EL MOTOR DEL TRACTOR, coloque la palanca en “estacionar", ponga el freno de mano y saque la llave.

Al conectar y desconectar el enganche del implemento:

• NO se agache o camine debajo de la cortadora o la ala en posición elevada.

• USE el GATO con lengüeta para elevar lengüetas de implementos pesados a fin de controlar el movimiento de la lengüeta del

implemento.

• EVITE recargar el gato para evitar una falla de éste y una lesión al operador.

AL CONECTAR LA LÍNEA DE CONDUCCIÓN DEL IMPLEMENTO:

PARA EVITAR que la línea de conducción del implemento se suelte durante la operación:

• LUBRIQUE el anillo de cierre del resorte del yugo para asegurarse de que se deslice libremente sobre el eje de PTO

• ASEGURE las bolas de cierre del yugo en la muesca del eje de PTO.

• PRESIONE y JALE DE LA LÍNEA DE CONDUCCIÓN del EJE DE TOMA DE FUERZA(PTO) del tractor y del implemento para

asegurarse de que estén FIRMEMENTE SUJETADOS

PARA EVITAR que la línea de conducción se rompa durante las operaciones:

• VERIFIQUE que la línea de conducción tenga el largo adecuado entre el eje de PTO y el eje de la caja de cambios del implemento.

• Las líneas de conducción demasiado cortas se pueden soltar o romper.

• Las líneas de conducción demasiado largas pueden tocar el suelo.

• Un ensamblaje telescópico de la línea de conducción que toque el suelo no se deslizará y se solidificará.

• Si la línea de conducción toca el suelo, puede atravesar los cojinetes de soporte y romper el eje de PTO.

COMUNÍQUESE CON EL DISTRIBUIDOR si la línea de conducción del implemento no coincide con el eje de TDF del tractor:

• NO UTILICE UN ADAPTADOR DE PTO.

• El uso de un adaptador de PTO puede ocasionar:

• Vibración excesiva, caída de objetos, fallas de la hoja y el implemento como consecuencia de la duplicación de la velocidad opera-

tiva.

• Mayor extensión de trabajo, lo que deja expuestas áreas desprotegidas de la línea de conducción e implica el riesgo de enredo con

otros objetos.

NO conecte la cortadora a un tractor con la TDF directamente conectada a la transmisión del tractor.

PN CD02 SP

SAFETY

BH20 Series 04/13 Sección de Seguridad 1-3

SAFETY

SEGURIDAD DEL OPERADOR

PARA EVITAR LESIONES GRAVES O LA MUERTE, SIGA LAS SIGUIENTES INSTRUCCIONES:

• LEA, COMPRENDA y SIGA las instrucciones del Manual del Operador, al igual que las Advertencias y Mensajes de

Seguridad.

• USE GAFAS DE SEGURIDAD, calzado protector, casco, protección auditiva y guantes al operar o reparar el equipo

• USE un aparato de respiración apropiado al operar en condiciones polvorientas a fin de evitar contraer

enfermedades respiratorias.

• NO USE prendas sueltas o joyas que se puedan enredar con las partes giratorias y causar una lesión.

• NO CONSUMA DROGAS o ALCOHOL antes o durante la operación del equipo.

• NO PERMITA que nadie opere el equipo bajo los efectos negativos de las drogas o el alcohol.

• CONSULTE a un médico para conocer los efectos desfavorables de la medicación sobre los sentidos.

• MANTÉNGASE ALERTA, la operación prolongada puede causar fatiga. HAGA UNA PAUSA y DESCANSE.

SEGURIDAD DE OPERACIÓN GENERAL

CONDICIONES DE VISIBILIDAD AL USAR LA CORTADORA:

• OPERE LA CORTADORA CON LUZ SOLAR o con luz que aporte una visibilidad nítida de más de 90 metros (100

yardas).

• DEBE PODER VISUALIZAR e identificar transeúntes, terrenos empinados, pozos, desniveles, obstrucciones

elevadas, cables de alimentación, residuos y objetos extraños.

VELOCIDAD RESPECTO AL SUELO AL USAR LA CORTADORA:

• El rango de VELOCIDAD NORMAL es de entre 2 y 5 millas por hora.

• AJUSTE LA VELOCIDAD DE CORTE según las condiciones del terreno y el tipo de césped, la densidad y la altura

del corte.

• REDUZCA LA VELOCIDAD DE CORTE al acercarse a inclinaciones empinadas, pozos, desniveles, obstrucciones

elevadas, cables de alimentación y para evitar residuos y objetos extraños.

INFESTACIÓN CON INSECTOS

• No opere en áreas susceptibles al ataque de abejas o insectos, salvo que USE PRENDAS PROTECTORAS o una

cabina de tractor cerrada.

VELOCIDAD DE PTO:

• NO EXCEDA LA VELOCIDAD DE PTO NOMINAL DEL IMPLEMENTO

• EVITE superar las velocidades nominales de PTO, porque puede causar roturas en la línea de conducción o fallas

de las cuchillas.

SEÑALES DE SEGURIDAD:

• REEMPLACE cualquier señal de seguridad faltante, dañada o ilegible.

PN OS01 SP

Sección de Seguridad 1-1

SECCIÓN DE SEGURIDAD

Instrucciones de operaciones antes de la entrega del DISTRIBUIDOR al CLIENTE

El distribuidor deberá informar al comprador de este producto las condiciones, disposiciones y procedimientos de

garantía aplicables; informar la responsabilidad del comprador de capacitar a sus operadores para la operación

segura; revisar el contenido del Manual del Operador, incluido el equipo de seguridad, la operación segura y el

mantenimiento; y revisar las Señales de Seguridad que se encuentran en el implemento (y en el tractor, de ser

posible).

• IMPLEMENTOS: He explicado que los deflectores, protectores de cadena o faldones sólidos se deben

mantener en buenas condiciones de reparación y se deben instalar, excepto en zonas donde personas,

vehículos, ganado u otros bienes no corran peligro por objetos arrojados, y en los casos en que dichos

equipos de seguridad impedirían un desempeño razonable de la cortadora en su tarea asignada.

• LÍNEAS DE CONDUCCIÓN: Me he asegurado de que todos los protectores de líneas de conducción, de caja

de engranajes y otros están en buenas condiciones de reparación y firmemente sujetados para prevenir

lesiones por enredo u objetos arrojados.

• MÁQUINAS HIDRÁULICAS: He explicado la necesidad de usar aceite hidráulico limpio, cambiar los filtros

según las instrucciones, detener filtraciones, prevenir daños por operar con aceite demasiado caliente, cuidar

las mangueras, usar mangueras del tipo correcto, mantener la presión operativa especificada y prevenir el

posible riesgo de que el aceite penetre en la piel.

• IMPLEMENTOS PLEGABLES: He explicado que no es posible proteger contra objetos arrojados cuando el

cabezal está elevado del suelo y que el operador es responsable de verificar que no existan personas en las

inmediaciones. He explicado que el brazo o cabezal de cortadora elevado puede entrar en contacto con

obstrucciones elevados y dañar cables y líneas telefónicas, y posiblemente causar lesiones. He explicado que

el brazo o cabezal extendido, o el brazo retraído, puede entrar en contacto con cables de alimentación y

causar lesiones o la muerte por electrocución, y que el operador es responsable de evitar dichos riesgos.

SERVICIO ANTES DE LA ENTREGA

VERIFIQUE Y AJUSTE O LUBRIQUE SEGÚN SEA NECESARIO

Consulte los detalles en el Manual del Operador

Inspección realizada – Garantía y procedimientos de seguridad explicados – Instalación realizada

LUBRICACIÓN E HIDRÁULICA

 Caja de engranajes (niveles de aceite)

 Nivel de aceite hidráulico (tanque externo)

 Nivel de aceite hidráulico del tractor

 Mangueras hidráulicas (no retorcidas y ajustadas)

 Propulsor de bomba frontal (conjunto ajustado y eje

bien alineado)

CORTADORA

 Pernos de husillo y motor bien ajustados

 Nivel de aceite del husillo

 Pernos de porta cuchillas bien ajustados/pasadores de

retención colocados

 Nivel y altura de corte de la cortadora ajustados

 Cojinetes del eje de corte lubricados

 Todas las piezas metálicas bien ajustadas

 Presión de aire y neumáticos/tuercas de rueda (bien

ajustadas)

 Cojinetes de rueda (verificar, engrasar y hacer carga

previa)

ACCESORIOS E INSTALACIÓN

 Deflectores frontales y traseros

 Accesorios de trituración

 Sentido de giro de las hojas correcto

 Vigas y brazos de eje

 Lengüeta y barras de control (instaladas y ajustadas)

 Todos los pernos, pasadores y tuercas (ajuste

correcto)

CONEXIONES DE CORTADORA A TRACTOR

 Longitud de barra de enganche (verificar y fijar)

 Pivote y conexiones de bastidor en A

 Barras de control (ajustadas iguales)

 Altura de eje (ajustar)

 Altura de corte (ajustar)

 Verificación de pre-operación de kit de montaje

 Aleta de cortadora (ajustar nivel con el centro)

 Aleta de cortadora (verificar operación de elevación

correcta)

 Líneas de conducción C.V. (verificar radio de giro máx.)

 Enganche de tracción (ajuste de altura)

 Piezas metálicas de montaje bien ajustadas

ELEMENTOS DE SEGURIDAD

 Protectores (operación e instalación)

 Embrague de línea de conducción (limitador de ajuste)

(ajustar y poner en marcha)

 Autoadhesivos de seguridad (colocados)

 Manual del Operador (entregado)

 Protector de TDF del tractor (instalado)

 Emblema S.M.V. (instalado de ser necesario)

 Gato con lengüeta (instalación y operación)

 Cadena de remolque de seguridad (instalada)

 Manual de Seguridad de Línea de Conducción ADMA

(entregado)

 Manual de Seguridad de Cortadora AEM (entregado en

porta manual)

 Se mostró el Video de Seguridad de Cortadora AEM al

comprador

Bush Hog está dispuesto a suministrar un (1) Video de Prácticas de

Seguridad para Cortadoras AEM

Por favor enviar: Video de Seguridad para el Operador de Cortadoras AEM/FEMA – formato VHS

Video de Seguridad para el Operador de Cortadoras AEM/FEMA – formato DVD

Manual del Operador de la Cortadora

Manual de Seguridad del Operador de la Cortadora AEM

Nombre del solicitante:___________________________________Teléfono:__________________________

Dirección del solicitante:___________________________________________________

Ciudad:_____________________________________

Estado:_____________________________________

Código postal:________________________________

Modelo de cortadora:____________________________Número de serie:____________________________

Fecha de compra:______________________________ Vendedor del distribuidor:______________________

Nombre del distribuidor:__________________________Dirección del distribuidor:______________________

Enviar por correo a:

AEM Video Services

1502 E. Walnut Street

Seguin, TX 78155

O enviar por fax a:

(830) 372-9529

O enviar por correo electrónico a:

AEMVid[email protected]

A fin de reducir la tasa de accidentes y mejorar la operación segura de las cortadoras, Alamo Group Ag Division se

ha asociado con otros fabricantes de la industria para desarrollar el video y la guía de Prácticas de Seguridad para

Cortadoras Industriales y Agrícolas AEM/FEMA.

El video explica a los operadores de tractores y cortadoras las prácticas seguras que deben adoptar cuando

utilizan cortadoras industriales y agrícolas. Es importante que todos los operadores de cortadoras aprendan cómo

operar sus equipos de corte y puedan reconocer los posibles peligros que pueden surgir al operar una cortadora.

Este video, en conjunto con el manual del operador de la cortadora y los mensajes de advertencia que se

encuentran en la cortadora, serán muy útiles para complementar este aprendizaje tan importante.

Es posible que su distribuidor autorizado de Bush Hog le haya mostrado este video y le haya entregado una copia

en DVD cuando adquirió su cortadora. Si usted o algún operador de cortadora no vio el video: mire el video, lea

este Manual del Operador, y complete la Guía del Video antes de operar su cortadora nueva. Si no comprende

alguna de las instrucciones del video o del manual del operador, o si tiene alguna pregunta acerca de la operación

segura, comuníquese con su supervisor, con el distribuidor o con Alamo Group Ag.

Si desea recibir una copia del video en VHS, envíe un mensaje de correo electrónico a AEMVideo@alamo-

group.com o un fax al (830) 372-9529, o envíe por correo una copia rellenada del formulario que se encuentra al

dorso de esta página a AEM VHS Video 1502 E Walnut Street, Seguin, TX 78155, y solicite la versión en VHS.

Indique su nombre, dirección postal, modelo de cortadora y número de serie.

Cada uno de los operadores debe recibir capacitación para cada equipo (tractor y cortadora), comprender el uso

previsto, y comprender los posibles peligros antes de operar el equipo.

La informacion y material mecionado en la informacion anterior junto con el Manual de Operador puede asistir en

cumplir con los requisitos de OSHA para el entrenamiento anual del Operador.

REQUISITOS DE ENTRENAMIENTO DEL OSHA

Los seguientes requisitos de entrenamiento se an tomoda del Titulo 29, código de la pieza de regulaciones

federales 1928.57 (a) (6). www.osha.gov

Instrucciones del operador. A la hora de la asignación inicial y por lo menos anualmente después de eso, el

empleador mandará a cada empleado quien opera un tractor agricola o implemento en las practicas de operación

segura y el mantenimiento de el equipo con el cual el empleado esté, o estará implicado y de cualquier otras

prácticas dictados por el ambiente laboral.

Al propietario/operador/distribuidor

Este Manual del Operador es una parte esencial de la operación segura de esta máquina y se debe mantener con

la unidad siempre. El implemento incluye un porta manual donde se puede guardar el manual de manera

adecuada. Si el manual se extravía o se daña, puede solicitar otra copia sin cargo a un distribuidor autorizado de

Bush Hog o descargarlo del sitio web de Bush Hog (www.bushhog.com).

ANTES DE COMENZAR LEA, COMPRENDA y SIGA la información incluida en este manual, el Manual de

Seguridad de la Cortadora AEM y el manual del operador del tractor para conocer cómo operar la máquina y

realizar tareas de servicio correctamente. De lo contrario, podría sufrir lesiones u ocasionar lesiones a terceros.

Todos los implementos con partes móviles son potencialmente peligrosos. Cada esfuerzo ha sido hecho para

asegurar que la màquina esté segura, pero los operadores deben evitar entrar en prácticas peligrosas y seguir las

instrucciones escritas que son proporcionadas. El fabricante ha diseñado este implemento para ser usado con

todos sus equipos de seguridad correctamente sujetados para minimizar la probabilidad de accidentes.

LA SEGURIDAD PRIMERO. Lea con atención la totalidad de la sección de seguridad de este manual antes de

operar el equipo. No permita que nadie opere el equipo sin haber leído y comprendido la totalidad de este manual.

Comuníquese con el distribuidor si necesita explicación sobre alguna instrucción que no haya comprendido del

todo.

Los cuidados que brinde a su Implemento Bush Hog determinarán en gran medida su satisfacción con el

desempeño y la vida útil del equipo. Lea con atención y siga las instrucciones de este manual para comprender

cabalmente su nuevo implemento, su uso previsto, y sus requisitos de servicio.

Todas las referencias que se hacen en este manual a derecha, izquierda, frontal, trasero, arriba y abajo

corresponden a la perspectiva en el sentido del desplazamiento hacia delante con el implemento correctamente

sujetado al tractor.

La información sobre repuestos se encuentra por separado en el Manual de Partes. Las cortadoras Bush Hog

utilizan componentes del sistema equilibrados y coincidentes para porta cuchillas, cuchillas, ejes de corte, hojas,

ganchos para hojas, rodillos, componentes de los engranajes, y cojinetes. Estas partes se fabrican y se prueban

según las especificaciones de Bush Hog. Las partes compatibles no genuinas no siempre cumplen con estas

especificaciones. El uso de partes no genuinas puede perjudicar el desempeño de la cortadora, anular la garantía

y presentar un riesgo para la seguridad. Use partes genuinas Bush Hog para ahorrar dinero y maximizar la

seguridad.

Para referencia futura, registre el número de modelo y el número de serie de Bush Hog que ha adquirido.

Distribuidor Teléfono Fecha de compra:

Owner Fecha de compra: Serial Number

Placa de Número de serie

BH20

SERIES

BH25, BH26, BH27

Publicado en 01/17 Parte nº. 50070397

MANUAL DE OPERADOR

BUSH HOG

2501 Griffin Ave.

Selma, AL 36703

334-874-2700

www.bushhog.com

CORTADORA/TRITURADORA GIRATORIA

Este Manual del Operador es

una parte esencial de la

operación segura de esta

máquina y se debe mantener con

la unidad siempre. LEA

ENTIENDA

, y SIGA las

Instrucciones de Seguridad y

Operación contenidas en este

manual antes de operar el

equipo.

C01-Cover SP_B

Importantes instrucciones

de operación y las

instrucciones de seguridad

se encuentran en el video

Cortacésped Sobre

Seguridad que se puede

acceder instantáneamente

en el internet en:

www.algqr.com/bvs

$0.00

Bush Hog Single-Spindle Rotary Cutter El manual del propietario

Marca: Bush Hog

Modelo: Single-Spindle Rotary Cutter

Categoría: Cortadoras de césped

Tipo: El manual del propietario

Descargar PDF

informe

En otros idiomas

English: Bush Hog Single-Spindle Rotary Cutter Owner's manual

Bush Hog Single-Spindle Rotary Cutter El manual del propietario

Bush Hog Single-Spindle Rotary Cutter El manual del propietario

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