RHINO Twister 20 Series Manual de usuario

Marca: RHINO

Modelo: Twister 20 Series

Categoría: Cortadoras de césped

Tipo: Manual de usuario

Published 09/18 Part No. 00792299C

OPERATOR’S MANUAL

RHINO

1020 S. Sangamon Ave.

Gibson City, IL 60936

800-446-5158

Email: [email protected]

This Operator's Manual is an integral part of the safe operation of this

machine and must be maintained with the unit at all times. READ,

UNDERSTAND, and FOLLOW the Safety and Operation Instructions

contained in this manual before operating the equipment. C01-Cover

$0.00

ROTARY MOWER

TWISTER 20

SERIES

Models TW25, TW26, TW27

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 Rhino 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 Alamo Group Ag.

If you would like a VHS video tape of the video, please email [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 price 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 Operator annual 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 or implement 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.

Alamo Group Ag. Division 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]

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 Rhino dealer or

by down loading the manual from the Rhino website www.servis-rhino.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 Rhino 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. Rhino 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 Rhino 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 Rhino mower parts for economy and safety.

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

Dealer Telephone Model Number

Owner Purchase Date: Serial Number

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 of safe operation procedures.

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

maintained in good repair.

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

fastened 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 oils 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 resulting in 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. Drivelines (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 ....................................................................................................................... 1-24

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

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

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

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

Warranty information ......................................................................................................................................... 2-4

RHINOAG LIMITED WARRANTY .................................................................................................................... 2-5

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

GUARDING INSTALLATION ............................................................................................................................ 3-2

TW27 ................................................................................................................................................................ 3-2

SINGLE TAILWHEEL INSTALLATION (TW25, TW26, & TW27) ..................................................................... 3-3

TW26 ................................................................................................................................................................ 3-3

TW27 ................................................................................................................................................................ 3-4

DUAL TAILWHEEL INSTALLATION (TW27) ................................................................................................... 3-5

A-FRAME INSTALLATION ............................................................................................................................... 3-6

DRIVELINE INSTALLATION ............................................................................................................................ 3-6

PROPER TORQUE FOR FASTENERS ........................................................................................................... 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 .......................................................................................................................................... 4-5

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

Power Take Off (PTO) ...................................................................................................................................... 4-6

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

GETTING ON AND OFF THE TRACTOR ........................................................................................................ 4-7

Boarding the Tractor ......................................................................................................................................... 4-7

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

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

CONNECTING THE MOWER TO THE TRACTOR .......................................................................................... 4-9

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) .......................................................................... 4-11

Setting Deck Pitch ........................................................................................................................................... 4-13

DRIVELINE ATTACHMENT ........................................................................................................................... 4-13

Driveline Length Check ................................................................................................................................... 4-14

PRE-OPERATION INSPECTION AND SERVICE .......................................................................................... 4-15

Tractor Pre-Operation Inspection/Service ....................................................................................................... 4-17

Mower Pre-Operation Inspection/Service ....................................................................................................... 4-17

Cutting Component Inspection ........................................................................................................................ 4-20

Blade Bolt Inspection ...................................................................................................................................... 4-22

DRIVING THE TRACTOR AND IMPLEMENT ................................................................................................ 4-25

Starting the Tractor ......................................................................................................................................... 4-26

Brake and Differential Lock Setting ................................................................................................................. 4-26

Raising the Mower .......................................................................................................................................... 4-27

Driving the Tractor and Mower ........................................................................................................................ 4-27

Crossing Ditches and Steep Inclines .............................................................................................................. 4-28

OPERATING THE TRACTOR AND IMPLEMENT .......................................................................................... 4-29

Foreign Debris Hazards .................................................................................................................................. 4-30

Bystanders/Passersby Precautions ................................................................................................................ 4-30

Engaging the Power Take Off (PTO) .............................................................................................................. 4-31

PTO RPM and Ground Speed ........................................................................................................................ 4-32

Operating the Mower ...................................................................................................................................... 4-32

Right of Way (Highway) Mowing ..................................................................................................................... 4-36

Shutting Down the Implement ......................................................................................................................... 4-37

DISCONNECTING THE MOWER FROM THE TRACTOR ............................................................................ 4-37

MOWER STORAGE ....................................................................................................................................... 4-39

TRANSPORTING THE TRACTOR AND IMPLEMENT .................................................................................. 4-39

Transporting on Public Roadways .................................................................................................................. 4-40

Hauling the Tractor and Implement ................................................................................................................. 4-42

TROUBLESHOOTING GUIDE ....................................................................................................................... 4-43

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

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

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

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

DRIVELINE LUBRICATION .............................................................................................................................. 5-5

BLADE SERVICING ......................................................................................................................................... 5-6

BLADE SHARPENING ..................................................................................................................................... 5-7

Blade Bolt Inspection ........................................................................................................................................ 5-9

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

BLADE CARRIER INSPECTION .................................................................................................................... 5-10

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

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

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

GEARBOX SERVICING ................................................................................................................................. 5-14

Disassembly .................................................................................................................................................... 5-15

Assembly ........................................................................................................................................................ 5-17

Safety Section 1-1

SAFETY SECTION

SAFETY

Twister 20 Series 09/18 Safety Section 1-2

SAFETY

GENERAL SAFETY INSTRUCTIONS AND PRACTICES

A careful operator is the best operator. Safety is of primary importance to the manufacturer and should be to

the owner/operator. Most accidents can be avoided by being aware of your equipment, your surroundings,

and observing certain precautions. The first section of this manual includes a list of Safety Messages that, if

followed, will help protect the operator and bystanders from injury or death. Read and understand these

Safety Messages before assembling, operating or servicing this implement. This equipment should only be

operated by those persons who have read the manual, who are responsible and trained, and who know how

to do so responsibly.

The Safety Alert Symbol combined with a Signal Word, as seen below, is used throughout this

manual and on decals which are attached to the equipment. The Safety Alert Symbol means:

“ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!” The Symbol and Signal Word

are intended to warn the owner/operator of impending hazards and the degree of possible injury

faced when operating this equipment.

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.

NOTE: Identifies points of particular interest for more efficient and convenient operation or repair.

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 this

Manual and in the Safety Messages on the implement. Always follow the instruction in this

manual and use good common sense to avoid hazards.

Pictographs are used throughout this manual to help bring your visual attention to safety issues.

NOTE: If you want a translation of this safety section in one of the following Languages, please contact:

Translations at 1502 E. Walnut Street Seguin, TX 78155; Fax: (830) 372-9529; Safety Section Translations

are available in Spanish, Portuguese, French, German, Russian.

PN GS01

Practice all usual and customary safe working precautions and above all---

remember safety is up to YOU

. Only YOU can prevent serious injury or death

from unsafe practices.

SAFETY

Twister 20 Series 09/18 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

Twister 20 Series 09/18 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

Twister 20 Series 09/18 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

Twister 20 Series 09/18 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

Twister 20 Series 09/18 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

Twister 20 Series 09/18 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

Twister 20 Series 09/18 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

Twister 20 Series 09/18 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.

• IF A MATERIAL BLOCKAGE occurs in the inlet or discharge areas of the mower, SHUT DOWN TRACTOR

ENGINE, disengage the PTO and wait for all rotating motion to stop. Place the tractor in park position, engage the

parking brake and remove the key before leaving the operator’s set. Clear the blockage before proceeding with

mowing. Be sure to keep feet and hands clear of the mower blades. If you raise the mower or mower wing to access

the blockage, engage the wing lock up latch and securely block up the mower before placing any parts of the body

beneath the mower.

PN MB01

SAFETY

Twister 20 Series 09/18 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.

• Injected Hydraulic fluid may cause gangrene if not surgically removed immediately by a doctor familiar

with this form of injury.

PN HP01

SAFETY

Twister 20 Series 09/18 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

Twister 20 Series 09/18 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 clearance for implement swing while turning.

PN TH02

SAFETY

Twister 20 Series 09/18 Safety Section 1-14

SAFETY

HAZARDS WITH MAINTENANCE OF IMPLEMENT

AVOID SERIOUS INJURY OR DEATH FROM COMPONENT FAILURE BY KEEPING IMPLEMENT IN

GOOD OPERATING CONDITION IN PERFORMING PROPER SERVICE, REPAIRS AND

MAINTENANCE.

BEFORE PERFORMING SERVICE, REPAIRS AND MAINTENANCE ON THE IMPLEMENT:

SECURE EQUIPMENT FOR SERVICE

BLOCK OUT POTENTIAL ENERGY HAZARDS; Rotating Parts, Raised Components, Hydraulic Pressure.

• STOP ENGINE, engage parking brake and allow all moving parts to stop and remove key before dismounting from truck seat.

•

PLACE implement on ground or securely block up raised equipment. Use large blocks on soft or wet soil.

•

PUSH and PULL Remote Hydraulic Cylinder lever to relieve hydraulic pressure.

• DISCONNECT IMPLEMENT Hydraulic HOSES from truck.

WEAR SAFETY GLASSES, PROTECTIVE GLOVES and follow SAFETY PROCEDURES when performing service, repairs

and maintenance on the implement:

•Always WEAR protective GLOVES when handling chemicals or worn component with sharp edges.

•Always

WEAR GLOVES and SAFETY GLASSES when servicing components

•

AVOID CONTACT with hot hydraulic oil tanks, pumps, motors, valves and hose connection surfaces.

•

SECURELY support or BLOCK UP raised implement, framework and lifted components before working underneath equipment.

•

STOP any implement movements and SHUT-OFF TRACTOR engine before doing any work procedures.

•

USE ladder or raised stands to reach high equipment areas inaccessible from ground.

•

ENSURE good footing by standing on solid flat surfaces when getting on implement to perform work.

•

FOLLOW manufacturer's instructions in handling oils, solvents, cleansers, and other chemical agents.

•

DO NOT change any factory-set hydraulic calibrations to avoid component or equipment failures.

•

DO NOT modify or alter implement, functions or components.

•

DO NOT WELD or repair rotating mower components. These may cause vibrations and component failures being thrown from

mower.

PERFORM SERVICE, REPAIRS, LUBRICATION AND MAINTENANCE OUTLINED IN IMPLEMENT MAINTENANCE

SECTION:

• INSPECT for loose fasteners, worn or broken parts, leaky or loose fittings, missing or broken cotter keys and washers on pins, and

all moving parts for wear.

•

REPLACE any worn or broken parts with authorized service parts.

•

LUBRICATE unit as specified by lubrication schedule

•

NEVER lubricate, adjust or remove material while it is running or in motion.

•

TORQUE all bolts and nuts as specified.

BLADE INSPECTION:

• REPLACE bent, damage, cracked or broken blades immediately with new blades.

•

AVOID blade failures and thrown broken blades. DO NOT straighten, weld, or weld hard-facing blades.

SAFETY SHIELDS, GUARDS AND SAFETY DEVICES INSPECTION:

• KEEP all Deflectors, Chain Guards, Steel Guards, Gearbox Shields, and PTO integral shields, Bands, Side Skirts and Skid Shoes

in place and in good condition.

Operating, servicing and maintaining this equipment can expose you to chemicals including gasoline,

diesel fuel, lubricants, petroleum products, engine exhaust, carbon monoxide, and phthalates, which are

known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize

exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a

well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. Battery

posts, terminals and related accessories contain lead and lead compounds, chemicals known to the state

of California to cause cancer, birth defects or other reproductive harm. For more information go to

www.P65Warnings.ca.gov. This website, operated by California's Office of Environmental Health Hazard

Assessment, provides information about these chemicals and how individuals may be exposed to them.

PN HM01

SAFETY

Twister 20 Series 09/18 Safety Section 1-15

SAFETY

PARTS INFORMATION

Rhino 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 Rhino

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 Rhino

mower parts for economy and safety.

(SPRM-1)

SEE YOUR RHINO DEALER

SAFETY

Twister 20 Series 09/18 Safety Section 1-16

SAFETY

Decal Location

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

occur while in shipping, use, or reconditioning. Rhino 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 Rhino dealer to order replacement decals.

SAFETY

Twister 20 Series 09/18 Safety Section 1-17

SAFETY

ITEM PART NO. QTY TYPE DESCRIPTION

1. D389 1 DANGER Multi-Hazard

D814 1 DANGER Multilingual Decal

D590 1 INSTRUCT Lubrication Chart

2. 00792180 1 LOGO Made n the USA

3. 00792179 1 LOGO Rhino Logo

4. 00792306 1 LOGO TW25 Model Name

00792376 1 LOGO TW26 Model Name

00792447 1 LOGO TW27 Model Name

5. 00760657 1 WARNING Use Genuine Rhino Parts

6. D137 1 INSTRUCT Blade Rotation CCW

7. 00792307 2 LOGO Rhino

8. D395 1 WARNING Blade Attachment

9. 00756004 1 DANGER Shield Missing

00756005 1** DANGER Rotating Driveline (Not Shown)

10. D388 1 DANGER Driveline Hazards

11. D614 2 DANGER Thrown Object

12. 00792364 1 SERIAL PLT Serial Number

13. 2738332 2 REFLECT Red Reflector

14. 00776031 1 ------------- Canister, Operator’s Manual

00792299C 1 ------------- Operator’s Manual

15. 03200347 1* REFLECTOR SMV Symbol

16. 00792308 1 INSTRUCT Warranty

Decal Sheets

00781352 Single Spindle Safety Decal Sheet

00792284 TW25 Logo Decal Sheet

00792363 TW26 Logo Decal Sheet

00792484 TW27 Logo Decal Sheet

* Furnished by Tractor Manufacturer for Lift Unit

** Furnished by Driveline Manufacturer

SAFETY

Twister 20 Series 09/18 Safety Section 1-18

SAFETY

Decal Description

SAFETY

Twister 20 Series 09/18 Safety Section 1-19

SAFETY

Twister 20 Series 09/18 Safety Section 1-20

SAFETY

Twister 20 Series 09/18 Safety Section 1-21

SAFETY

Twister 20 Series 09/18 Safety Section 1-22

SAFETY

Twister 20 Series 09/18 Safety Section 1-23

SAFETY

Twister 20 Series 09/18 Safety Section 1-24

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

Twister 20 Series 09/18 Introduction Section 2-2

INTRODUCTION

We are pleased to have you as a Rhino 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.

Rhino 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 Rhino 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

Twister 20 Series 09/18 Introduction Section 2-3

INTRODUCTION

The Rhino TW25, TW26, and TW27 Rotary Mowers are designed for medium duty

applications such as weed, grass, corn stalks and light brush to 2” diameter. These

mowers are single spindle with two free-swinging blades. Free swinging blades

reduce the shock of impact when a stationary object is hit. Additional protection is

provided by a slip clutch on the gearbox input shaft. A rounded blade holder allows

the mower to “Ride Over” stumps and similar immovable objects. These mowers are

attached to the tractor using 3-Point Cat II or Cat I standard hitch or quick hitches for

TW25 and TW26, Cat II or Cat III for TW27. Standard equipment includes driveline

shields, clutch shield, and front and rear discharge shields.

Equipment Specifications

TW25 TW26 TW27

Cutting Width 60” 72” 84”

Overall Width 64-1/4” 76-1/4” 88-1/4”

Overall Length 108”” 118” 135”

Cutting Height (min.) 1-1/2” 1-1/2” 1-1/2”

HP Required 25 HP 35 HP 45 HP

Cutting Capacity (max) 2” 2” 2”

Weight w/Deflectors (Approx) 720 lbs 800 lbs 1105 lbs

Weight w/Chains (Approx) 760 lbs 865 lbs. 1180 lbs.

Blade Tip Speed (fpm) 14,335 14,963 14,369

Gearbox Rating (HP)* 65 65 130

Limited Warranty 5 Years 5 Years 5 Years

Driveline Size CAT3 CAT3 CAT4

Limited Warranty 1 Year 1 Year 1 Year

* Based on Field Performance

INTRODUCTION

Twister 20 Series 09/18 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.

• 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.

Warranty information

In addition to the standard Limited Warranty shown on the facing page, Rhino also provides:

ONE-YEAR (24 months) LIMITED WARRANTY** on the DRIVELINE components provided they have been

properly maintained† and have not been subjected to abuse or mis-use.

* *WARRANTY LIMITATIONS - DRIVELINE

A. Warranty is ONE-YEAR (12 MONTHS) for DRIVELINE SHIELDS except that evidence of wear from contact

with other parts on the shield voids this warranty.

B. Shield Bearings are wearing parts and are not warrantable.

C. Slip-Clutch Disks are wearing parts and are not warrantable. Evidence of “burning up” Slip Clutch Plates

due to improper adjustment will void warranty on Slip Clutch Parts.

INTRODUCTION

Twister 20 Series 09/18 Introduction Section 2-5

INTRODUCTION

RHINOAG LIMITED WARRANTY

1. LIMITED WARRANTIES

1.01. RHINOAG warrants for one year from the purchase date to the original non-commercial, governmental, or municipal purchaser

(“Purchaser”) and warrants for six months to the original commercial or industrial purchaser (“Purchaser”) that the goods purchased

are free from defects in material or workmanship.

1.02. Manufacturer will replace for the Purchaser any part or parts found, upon examination at one of its factories, to be defective under

normal use and service due to defects in material or workmanship.

1.03. This limited warranty does not apply to any part of the goods which has been subjected to improper or abnormal use, negligence,

alteration, modification, or accident, damaged due to lack of maintenance or use of wrong fuel, oil, or lubricants, or which has served

its normal life. This limited warranty does not apply to any part of any internal combustion engine, or expendable items such as

blades, shields, guards, or pneumatic tires except as specifically found in your Operator’s Manual.

1.04. Except as provided herein, no employee, agent, Dealer, or other person is authorized to give any warranties of any nature on behalf of

Manufacturer.

2. REMEDIES AND PROCEDURES.

2.01. This limited warranty is effective when an Authorized RhinoAg Dealer (“Dealer”) submits the registration electronically at the time of

sale to www.alamoagservicecenter.com.

2.02. Purchaser claims must be made in writing to the Dealer within 30 days after Purchaser learns of the facts on which the claim is based.

Thereafter, the Dealer must electronically submit the claim for reimbursement within 90 days after repair of the goods in question.

2.03. Purchaser is responsible for returning the goods in question to the Dealer.

2.04. If after examining the goods and/or parts in question, Manufacturer finds them to be defective under normal use and service due to

defects in material or workmanship, Manufacturer will:

(a)Repair or replace the defective goods or part(s) or

(b)Reimburse Purchaser for the cost of the part(s) and reasonable labor charges (as determined by Manufacturer) if

Purchaser paid for the repair and/or replacement prior to the final determination of applicability of the warranty by

Manufacturer.

The choice of remedy shall belong to Manufacturer.

2.05. Purchaser is responsible for any labor charges exceeding a reasonable amount as determined by Manufacturer and for returning the

goods to the Dealer, whether or not the claim is approved. Purchaser is responsible for the transportation cost for the goods or part(s)

from the Dealer to the designated factory.

3. LIMITATION OF LIABILITY.

3.01. MANUFACTURER DISCLAIMS ANY EXPRESS (EXCEPT AS SET FORTH HEREIN) AND IMPLIED WARRANTIES WITH

RESPECT TO THE GOODS INCLUDING, BUT NOT LIMITED TO, MERCHANTABILITY AND FITNESS FOR A PARTICULAR

PURPOSE.

3.02. MANUFACTURER MAKES NO WARRANTY AS TO THE DESIGN, CAPABILITY, CAPACITY, OR SUITABILITY FOR USE OF THE

GOODS.

3.03. EXCEPT AS PROVIDED HEREIN, MANUFACTURER SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO PURCHASER OR

ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS, OR DAMAGE CAUSED OR ALLEGED TO BE

CAUSED DIRECTLY OR INDIRECTLY BY THE GOODS INCLUDING, BUT NOT LIMITED TO, ANY INDIRECT, SPECIAL,

CONSEQUENTIAL, OR INCIDENTAL DAMAGES RESULTING FROM THE USE OR OPERATION OF THE GOODS OR ANY

BREACH OF THIS WARRANTY. NOT WITHSTANDING THE ABOVE LIMITATIONS AND WARRANTIES, MANUFACTURER’S

LIABILITY HEREUNDER FOR DAMAGES INCURRED BY PURCHASER OR OTHERS SHALL NOT EXCEED THE PRICE OF THE

GOODS.

3.04. NO ACTION ARISING OUT OF ANY CLAIMED BREACH OF THIS WARRANTY OR TRANSACTIONS UNDER THIS WARRANTY

MAY BE BROUGHT MORE THAN TWO (2) YEARS AFTER THE CAUSE OF ACTION HAS OCCURRED.

4. MISCELLANEOUS.

4.01. Proper Venue for any lawsuits arising from or related to this limited warranty shall be only in Guadalupe County, Texas.

4.02. Manufacturer may waive compliance with any of the terms of this limited warranty, but no waiver of any terms shall be deemed to be a

waiver of any other term.

4.03. If any provision of this limited warranty shall violate any applicable law and is held to be unenforceable, then the invalidity of such

provision shall not invalidate any other provisions herein.

4.04. Applicable law may provide rights and benefits to purchaser in addition to those provided herein.

KEEP FOR YOUR RECORDS

ATTENTION: Purchaser should fill in the blanks below for his reference when buying repair parts and/or for proper machine identification

when applying for warranty.

RHINOAG Implement Model____________________________ Serial Number_______________________

Date Purchased______________________________________ Dealer______________________________

ATTENTION:

READ YOUR OERATOR’S MANUAL

RHINO

1020 S Sangamon Ave.

Gibson City, IL 60936

800-446-5158

E-mail: [email protected]

Assembly Section 3-1

ASSEMBLY SECTION

ASSEMBLY

Twister 20 Series 9/18 Assembly Section 3-2

ASSEMBLY

GUARDING INSTALLATION

NOTE: Guarding installed from factory for TW25 & TW26. Front guarding installed on TW27 from factory.

Front and rear chainguards are recommended for higher than normal usage (100 hours or more per year) and

will provide protection from thrown objects with careful operation. Chainguards must be maintained and in

good repair by replacing missing or worn sections or by being replaced when seriously worn or damaged.

TW27

1. Install rear guarding option (chainguards (1) or rubber deflector (2) and bracket (3) on rear of deck using

ten 3/8” x 1-1/4” carriage bolts (4) and whiz nuts (5). For single tailwheel option, install tailwheel adjustment

bracket (6) on outside of guarding option at center four holes. For dual tailwheel option, install main

tailwheel adjustment brackets (7) on outside of guarding option at tow outer sets of three mounting holes.

2. Tighten all bolts to proper torque.

NOTE: Guarding hardware is shipped in manual canister.

ASSEMBLY

Twister 20 Series 9/18 Assembly Section 3-3

ASSEMBLY

SINGLE TAILWHEEL INSTALLATION (TW25, TW26, & TW27)

NOTE: TW25 tailwheel installed field ready from factory. Adjust wheel height (See Operation Section) to

desired cut height.

TW26

1. Remove and retain 5/8” bolts (1) and flanged Spiralock nuts (2) holding lift strap bars (3) to rear mount

plates. Leave small step bushings (4) in place with lift strap bars.

2. Remove shipping bracket (5). Remove tailwheel support bracket (6) from hitch ears.

3. Remove and retain center four carriage bolts and flange whiz nuts of rear guarding option at center of rear

of deck. Install tailwheel support bracket on outside of guarding option suing removed carriage bolts and

flange whiz nuts.

4. Remove tie straps securing large step bushings (7) and move tailwheel weldment (8) rearward to align

large front hole on tailwheel weldment with rear mount plates on mower deck. Reinstall 5/8” bolts (1) and

flanged Spiralock nuts (2).

5. Move tailwheel weldment to desired height (See Operation Section for more information) and secure to

tailwheel adjustment plate (6) with two 1/2” x 1-1/4” bolts (9) and locking flange nuts (10).

6. Tighten all bolts to proper torque.

ASSEMBLY

Twister 20 Series 9/18 Assembly Section 3-4

ASSEMBLY

TW27

NOTE: Rear guarding option (deflector or chainguard) must be installed prior to installing tailwheel. Refer to

guarding option installation instructions.

1. Remove tailwheel weldment (1) from top of deck and caster wheel assembly (2) from underside of deck.

Retain large step bushings (3).

2. Remove and retain 5/8” bolts (4) and flanged Spiralock nuts (5) holding lift strap bars (6) to outside lugs.

Move small step bushings (7) and lift strap bars (6) to outside of the inside lug.

3. Set tailwheel weldment (1) and large step bushings (3) in place and secure with hardware removed in Step

#3. Ensure both step bushings (3 & 7) are completely through the lift strap (6) and tailwheel weldment (1)

arm and tight up against rear mounting plates.

4. If not already installed, attach tailwheel adjustment plate (8) on rear of deck after installing either

chainguard or deflector shielding option using quantity four 3/8” x 1-1/4” carriage bolts and flange whiz nuts

used for installing guarding. Guarding hardware is shipped in manual canister.

5. Connect tailwheel weldment (1) to tailwheel adjustment plate (8) at desired height with two 1/2” x 1-1/4”

bolts (9) and locking flange nuts (10). (See Operation Section for more information).

6. Insert caster fork wheel assembly (2) in tailwheel weldment (1) and secure with washer (11) and cotter pin

(12).

7. Tighten all bolts to proper torque.

ASSEMBLY

Twister 20 Series 9/18 Assembly Section 3-5

ASSEMBLY

DUAL TAILWHEEL INSTALLATION (TW27)

1. Unpack tailwheel weldments (1) and remove caster wheel assemblies (2) from underside of deck. Discard

hardware securing to deck.

2. Remove and retain 5/8” bolts (3) and flanged Spiralock nuts (4) holding lift strap bars (5) to outside lugs.

Move small step bushings (6) and bushings (7) to outside of the inside lug.

3. If not already in place, install main tailwheel adjustment brackets (8) on rear of deck after installing either

chainguard or deflector shielding option, using quantity ten 3/8” x 1-1/4” carriage bolts and flange whiz nuts

(shipped in manual canister).

4. Set tailwheel weldments (1) in place and secure with hardware removed in step #2.

5. Install upper and lower tailwheel adjustment brackets (9& 10) to main tailwheel adjustment brackets (8) at

desired height using 1/2” x 2” bolts (11) and locking flange nuts (12) placing tailwheel weldment (1) in

between upper and lower tailwheel adjustment plates (9 & 10). Line up profiles of thin lower adjustment

plate (10) and thick upper adjustment plate (9) and main adjustment bracket (8) on inside of main

adjustment bracket (8) (towards front of mower).

NOTE: Ensure thicker upper adjustment bracket (9) runs across top of tailwheel weldment (9) and thinner

bottom adjustment bracket (10) runs across bottom of tailwheel weldment (1).

6. Install caster fork wheel assemblies (2) in tailwheel weldments (1) and secure with washer (13) and cotter

pin (14).

7. Tighten all bolts to proper torque.

ASSEMBLY

Twister 20 Series 9/18 Assembly Section 3-6

ASSEMBLY

A-FRAME INSTALLATION

1. Untie ramp link (1) from Gearbox Shield

2. Rotate A-Frames (2) up and attach rear lift strap bars (3) to ramp link (1) using 5/8” x 2-3/4” bolts (4),

hardened bushings (5), and flanged Spiralock nuts (6). Place top bushing (5) in slot in ramp link (1) and

lower bushing under ramp portion.

3. Tighten all bolts to proper torque.

DRIVELINE INSTALLATION

Attach slip clutch driveline to input shaft on gearbox with Grade 8 Bolt, Figure Asm-R-0073 & AsmP-R-0487.

Refer to proper Torque Chart in Maintenance Section of this manual.

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.

ASSEMBLY

Twister 20 Series 9/18 Assembly Section 3-7

ASSEMBLY

Operation Section 4-1

OPERATION SECTION

OPERATION

Twister 20 Series 09/18 Operation Section 4-2

OPERATION

RHINO TW20SERIES ROTARY MOWER

OPERATION INSTRUCTIONS

Rhino 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 2” 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 USE 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

Twister 20 Series 09/18 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

Twister 20 Series 09/18 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:

............................TW25 TW26 TW27

-Minimum ......................25 HP 35 HP 45 HP

-Maximum ......................50 HP 65 HP 90 HP

• Hitch -Lift Type Mower:

- Lifting Capacity ............760 lbs 865 lbs 1180 lbs

- 3-Point Hitch ................CAT I or II CAT I or II CAT II or III

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

Power Take Off ..........540 RPM 6-spline, 1-3/8” diameter output shaft

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 or

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

OPERATION

Twister 20 Series 09/18 Operation Section 4-5

OPERATION

2.3 Tractor Horsepower

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

conditions, the TW20 Series mower requires a tractor with at least 25 HP for TW25, 35 HP for TW26 and 45

HP for TW27. Operating the mower with a tractor that does not have adequate power may damage the tractor

engine. Exceeding 50 HP for TW25, 65 HP for TW26 and 90 HP for TW27 may cause mower damage by

overpowering the unit in heavy cutting conditions.

2.4 3-Point Hitch

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

760 lbs. for TW25, 865 lbs. for TW26 and 1180 lbs.

for TW27.

The 20 Series mower is designed to be mounted on

a tractor with a CAT I 3-point hitch or CAT I Quick

Hitch for the TW25 and TW26 and a CAT II or CAT

III Standard Hitch or Quick Hitch for TW27. Refer to

the tractor operator’s manual for the category of the

tractor being used. If the hitch does not conform to

ASABE dimensions, the mower may not fit or raise

properly. Consult an authorized dealer for possible

modification 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. CAT II

hitches require 1-1/2” lower and 1” upper diameter

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

lower and 1-1/4” diameter upper pin. CAT III hitches

require 1-7/16” lower and 1-1/4” upper diameter

hitch pins.The 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.

OPERATION

Twister 20 Series 09/18 Operation Section 4-6

OPERATION

Power Take Off (PTO)

This mower is designed to operate at a PTO speed of 540. Most tractors operate at either 540, or a

combination of 540 and 1000 RPM PTO speeds. The operating speed of the mower and tractor can be

determined by the number of splines on the driveline yoke and PTO output shaft. Those operating at 540 RPM

will have a 6-spline shaft and those operating at 1000 RPM will have a 21-spline shaft. If operating an older

model tractor where the tractor’s transmission and PTO utilize one master clutch, an over-running clutch must

be used between the PTO output shaft and the driveline of the mower. An authorized tractor dealer can provide

the over-running clutch and its installation if needed.

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

implement is securely connected to the tractor.

DO NOT use a PTO adapter to attach a non-matching Implement driveline to a Tractor

PTO. Use of an adapter can double the operating speed of the Implement resulting in

excessive vibration, thrown objects, and blade and implement failure. Adapter use will also

change the working length of the driveline exposing unshielded driveline areas. Serious

bodily injury and/or equipment failure can result from using a PTO adapter. Consult an

authorized dealer for assistance if the Implement driveline does not match the Tractor PTO.

(S3PT-14)

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

to the Tractor 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)

2.5 Tire Spacing

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

m) apart measured from inside of tire to inside of

tire, or maximum width possible. Refer to the

tractor Operator’s Manual or consult an authorized

dealer for instructions to change tractor tire

spacing. OPS-R- 0062

OPERATION

Twister 20 Series 09/18 Operation Section 4-7

OPERATION

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 moving 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

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

OPERATION

Twister 20 Series 09/18 Operation Section 4-8

OPERATION

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)

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)

OPERATION

Twister 20 Series 09/18 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.

NOTE: Offset Adaptor Hitches are available to position the mower to the left or right. Mowers with Offset

Adaptor hitches connect to the 3-Point hitch the same way as the mower A-frame. See Offset Adaptor Hitch in

the Assembly Section for details to equip the mower with this feature.

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

Twister 20 Series 09/18 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 more 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

Twister 20 Series 09/18 Operation Section 4-11

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.

5.4 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

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 or blocked up

to prevent sudden or inadvertent falling which could cause serious

injury or even death.

(SG-14)

OPERATION

Twister 20 Series 09/18 Operation Section 4-12

OPERATION

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 in

position and allow the tailwheel to rest at

ground level. Align tailwheel between nearest

sets of holes. Tighten all bolts and nuts.

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

Twister 20 Series 09/18 Operation Section 4-13

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.

IMPORTANT:

Adjust the leveling rods the same amount and

maintain equal tension in the rods. Improper

adjustment may cause rods to snap or bend.

Retighten the jamnuts after the deck pitch has been

set. OPS-U-0041

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

Twister 20 Series 09/18 Operation Section 4-14

OPERATION

7.1 Driveline Length Check

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)

“Bottoming Out” Check Procedure

• Disconnect driveline from the tractor and slide

the profiles together until fully compressed.

• Place a mark on the inner shield 1/8” from the

end of the outer shield.

• Reattach the driveline to the PTO Shaft.

• With the PTO NOT TURNING, raise and lower

the mower and watch shaft movement.

• Raise the mower and watch the driveline as it

approaches the mark. If the distance between

the mark and the end of the outer shield tube

becomes less than 2” at any point, contact your

local dealer or tech service for proper

directions. OPS-R-0004_H

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

to the Tractor 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)

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)

OPERATION

Twister 20 Series 09/18 Operation Section 4-15

OPERATION

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)

Shorten the driveline profiles as follows:

• Remove the driveline from the tractor.

• Position the mower to the point with the

shortest distance between the tractor PTO shaft

and cutter gearbox. Shut down the tractor and

securely block the mower in this position.

• Pull driveline apart and reattach yoke to PTO

shaft.

• Hold driveline sections parallel to one another

and measure back 1” from yoke of each shaft

and place mark on opposite section. Cut this

length off with a saw.

• Round off all sharp edges and debur.

• Thoroughly grease then reinstall the driveline.

• Recheck for proper operation.

Engagement Check Procedure

• With the driveline attached, position the mower to the point where the telescoping driveline is at its

maximum extension. Completely shut down the tractor and secure in position.

• Mark the inner driveline shield 1/8” from the end of the outer shield.

• Disconnect the driveline from the tractor and separate the two driveline halves.

• Measure the distance from the mark to the end of the inner profile. This length is the amount the driveline

profiles were engaged.

• If the engaged length is less than 12” for a CV driveline and less than 6” for a non-CV driveline, the shaft is

considered too short and should be replaced with a longer shaft. Consult an authorized dealer to

purchase the required driveline length.

NOTE: When raising the mower at 1” clearance must be maintained between the driveline and the mower

deck. If necessary, place an upper lift stop on the 3-point hitch control lever to limit the height the mower can

be raised. OPS-R-0005_K

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

OPERATION

Twister 20 Series 09/18 Operation Section 4-16

OPERATION

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

Twister 20 Series 09/18 Operation Section 4-17

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 instructions 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

Twister 20 Series 09/18 Operation Section 4-18

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

Twister 20 Series 09/18 Operation Section 4-19

OPERATION

• Ensure the tailwheel beam position support

bolts are properly installed and tightened.

• Inspect all bolts and screws and tighten to the

recommended torque. OPS-R-0039_B

• 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

• 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

OPERATION

Twister 20 Series 09/18 Operation Section 4-20

OPERATION

8.3 Cutting Component Inspection

Inspect blade pan and blade assembly for the following:

OPS-U-0031

OPERATION

Twister 20 Series 09/18 Operation Section 4-21

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.

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

Twister 20 Series 09/18 Operation Section 4-22

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

Twister 20 Series 09/18 Operation Section 4-23

OPERATION

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 mower 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 MOWER

OPERATION

Twister 20 Series 09/18 Operation Section 4-24

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

IMPORTANT: Scan

this QR Code for an

electronic copy of this

inspection sheet.

DO NOT OPERATE an UNSAFE TRACTOR or MOWER

www.algqr.com/rmi

OPERATION

Twister 20 Series 09/18 Operation Section 4-25

OPERATION

9. DRIVING THE TRACTOR AND IMPLEMENT

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 hazardous 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

Twister 20 Series 09/18 Operation Section 4-26

OPERATION

9.1 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

9.2 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

Twister 20 Series 09/18 Operation Section 4-27

OPERATION

9.3 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

9.4 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

Twister 20 Series 09/18 Operation Section 4-28

OPERATION

9.5 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

Twister 20 Series 09/18 Operation Section 4-29

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

10. 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 debris. 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

Twister 20 Series 09/18 Operation Section 4-30

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)

10.1 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

10.2 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

Twister 20 Series 09/18 Operation Section 4-31

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)

10.3 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

Twister 20 Series 09/18 Operation Section 4-32

OPERATION

10.4 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 blade 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)

10.5 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 1” 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. OPS-R-0026_G

OPERATION

Twister 20 Series 09/18 Operation Section 4-33

OPERATION

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

closed.

(SGM-11)

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)

OPERATION

Twister 20 Series 09/18 Operation Section 4-34

OPERATION

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

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

OPERATION

Twister 20 Series 09/18 Operation Section 4-35

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

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

Twister 20 Series 09/18 Operation Section 4-36

OPERATION

10.6 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

Twister 20 Series 09/18 Operation Section 4-37

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.

10.7 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

11. 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

Twister 20 Series 09/18 Operation Section 4-38

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

Twister 20 Series 09/18 Operation Section 4-39

OPERATION

12. 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)

13. 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

Twister 20 Series 09/18 Operation Section 4-40

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

13.1 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 clearly visible and legible. When transporting the

Equipment use the Tractor flashing warning lights and follow all local

traffic regulations.

(SG-6)

OPERATION

Twister 20 Series 09/18 Operation Section 4-41

OPERATION

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

When operating on public roads, have

consideration for other road users. Pull 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

OPERATION

Twister 20 Series 09/18 Operation Section 4-42

OPERATION

13.2 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

tiedown 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.

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

Twister 20 Series 09/18 Operation Section 4-43

OPERATION

14. 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 one Adjust tire pressure.

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

Twister 20 Series 09/18 Operation Section 4-44

OPERATION

Blade Bolts Working Loose Bolts not tightened. Tighten Bolts to 300 ft./lbs.

Bolt hole elongated or oversized. Replace Blade Carrier.

Locknut worn out. Replace Locknut.

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

Twister 20 Series 09/18 Maintenance Section 5-2

MAINTENANCE

HAZARDS WITH MAINTENANCE OF IMPLEMENT

AVOID SERIOUS INJURY OR DEATH FROM COMPONENT FAILURE BY KEEPING IMPLEMENT IN

GOOD OPERATING CONDITION IN PERFORMING PROPER SERVICE, REPAIRS AND

MAINTENANCE.

BEFORE PERFORMING SERVICE, REPAIRS AND MAINTENANCE ON THE IMPLEMENT:

SECURE EQUIPMENT FOR SERVICE

BLOCK OUT POTENTIAL ENERGY HAZARDS; Rotating Parts, Raised Components, Hydraulic Pressure.

• STOP ENGINE, engage parking brake and allow all moving parts to stop and remove key before dismounting from truck seat.

•

PLACE implement on ground or securely block up raised equipment. Use large blocks on soft or wet soil.

•

PUSH and PULL Remote Hydraulic Cylinder lever to relieve hydraulic pressure.

• DISCONNECT IMPLEMENT Hydraulic HOSES from truck.

WEAR SAFETY GLASSES, PROTECTIVE GLOVES and follow SAFETY PROCEDURES when performing service, repairs

and maintenance on the implement:

• Always WEAR protective GLOVES when handling chemicals or worn component with sharp edges.

• Always