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,
and Operation Instructions contained in this manual before operating the equipment. C01-
Cover
UNDERSTAND, and FOLLOW the Safety
RHINO®
1020 S. Sangamon Ave.
Gibson City, IL 60936
800-446-5158
Email: parts@servis-rhino.com
All implements with moving parts are potentially hazardous. There is no substitute for a cautious, safe-minded
operator who recognizes the potential hazards and follows reasonable safety practices. The manufacturer has
designed this implement to be used with all its safety equipment properly attached to minimize the chance of accidents.
BEFORE YOU START!! Read the safety messages on the implement and shown in your manual. Observe the
rules of safety and common sense!
WARRANTY INFORMATION:
Read and understand the complete Warranty Statement found in this Manual. Fill out the Warranty Registration
Form in full and return it to within 30 Days. Make certain the Serial Number of the Machine is recorded on the Warranty Card and on the Warranty Form that you retain
Federal Laws and Regulations .........................................................................................................................1-20
ROPS and Seat Belt ........................................................................................................................................... 4-5
Front End Weight ................................................................................................................................................4-6
Power Take Off (PTO) ........................................................................................................................................ 4-7
GETTING ON AND OFF THE TRACTOR ..........................................................................................................4-7
Boarding the Tractor ........................................................................................................................................... 4-8
Dismounting the Tractor......................................................................................................................................4-8
STARTING THE TRACTOR ............................................................................................................................... 4-9
CONNECTING THE MOWER TO THE TRACTOR ............................................................................................ 4-9
SETTING THE MOWER ................................................................................................................................... 4-10
DRIVING THE TRACTOR AND IMPLEMENT .................................................................................................. 4-23
Starting the Tractor ........................................................................................................................................... 4-24
Brake and Differential Lock Setting................................................................................................................... 4-24
Raising the Mower ............................................................................................................................................ 4-25
Driving the Tractor and Mower.......................................................................................................................... 4-25
Crossing Ditches and Steep Inclines ................................................................................................................ 4-26
OPERATING THE TRACTOR AND IMPLEMENT............................................................................................ 4-27
Engaging the Power Take Off (PTO) ................................................................................................................ 4-29
PTO RPM and Ground Speed ..........................................................................................................................4-30
Operating the Mower ........................................................................................................................................ 4-30
Shutting Down the Implement ........................................................................................................................... 4-34
DISCONNECTING THE MOWER FROM THE TRACTOR .............................................................................. 4-34
TRANSPORTING THE TRACTOR AND IMPLEMENT .................................................................................... 4-36
Tire and Wheels................................................................................................................................................ 4-36
Transporting on Public Roadways ....................................................................................................................4-37
Hauling the Tractor and Implement................................................................................................................... 4-38
Proper Torque For Fasteners ............................................................................................................................. 5-8
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 Alamo Ag 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 AEMVideo@alamo-group.com or Fax
AEM VHS Video at (830) 372-9529 or mail in a completed copy of the form on the back of this page to
AEM VHS Video 1502 E Walnut Street, Seguin, TX 78155. and request the VHS video version. Please
include your name, mailing address, mower model and serial number.
Every operator should be trained for each piece of equipment (Tractor and Mower), understand the
intended use, and the potential hazards before operating the equipment.
Alamo Group Ag. Division is willing to provide
one (1) AEM Mower Safety Practices Video
Please Send Me:VHS Format – AEM/FEMA Mower Operator Safety Video
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.
SAFETY
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.
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
(SG-1)
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 the
Safety Messages. Always use good common sense to avoid hazards.
Si no lee ingles, pida ayuda a alguien que si lo lea para que le traduzca las
medidas de seguridad.
you have read an
completely understand this Manual, the Tractor Operator’s Manual, and
each of the Safety Messages found in the Manual or on the Tractor and
Implement. Learn how to stop the tractor engine suddenly in an
emergency. Never allow inexperienced or untrained personnel to
operate the Tractor and Implement without supervision. Make sure the
operator has fully read and understood the manuals prior to operation.
(SG-4)
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)
Always maintain the safety signs in good readable condition. If the safety signs are
missing, damaged, or unreadable, obtain and install replacement safety signs immediately.
(SG-5)
Operate this Equipment only with a Tractor equipped with an approved rollover-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)
SAFETY
o not mo
y or alter
ement. Do not permit anyone to mo
Implement, any of its components or any Implement function.
BEFORE leaving the tractor seat, always engage the 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.
Never allow children or other persons to ride on the Tractor or Implement.
Falling off can result in serious injury or death.
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.
Do not mount the Tractor while the tractor is moving. Mount the Tractor
only when the Tractor and all moving parts are completely stopped.
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)
(SG-11)
(SG-12)
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)
The operator and all support personnel should wear hard hats, safety
shoes, safety glasses, and proper hearing protection at all times for
protection from injury including injury from items that may be thrown by
the equipment.
(SG-16)
PROLONGED EXPOSURE TO LOUD NOISE MAY CAUSE
PERMANENT HEARING LOSS! Tractors with or without an Implement
attached can often be noisy enough to cause permanent hearing loss.
We recommend that you always wear hearing protection if the noise in
the Operator’s position exceeds 80db. Noise over 85db over an
extended period of time will cause severe hearing loss. Noise over 90db
adjacent to the Operator over an extended period of time will cause
permanent or total hearing loss. NOTE: Hearing loss from loud noise
[from tractors, chain saws, radios, and other such sources close to the
ear] is cumulative over a lifetime without hope of natural recovery.
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.
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:
(SG-21)
SAFETY
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)
Never attempt to lubricate, adjust, or remove material from the Implement while it is in
e manufacturer’s
instructions when handling oil, solvents, cleansers, and any other
chemical agent.
(SG-22)
Never run the Tractor engine in a closed building or without adequate ventilation. The
exhaust fumes can be hazardous to your health.
(SG-23)
KEEP AWAY FROM ROTATING ELEMENTS to prevent entanglement
and possible serious injury or death.
(SG-24)
Never allow children to play on or around Tractor or Implement. Children can slip or fall off
the Equipment and be injured or killed. Children can cause the Implement to shift or fall
crushing themselves or others.
(SG-25)
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)
NEVER 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)
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
100 yards(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.
There are obvious and hidden potential hazards in the operation of this
Mower. REMEMBER! This machine is often operated in heavy brush
and in heavy weeds. The Blades of this Mower can throw objects if shields are not
properly installed and maintained. Serious injury or even death may occur unless care is
taken to insure the safety of the operator, bystanders, or passersby in the area. Do not
operate this machine with anyone in the immediate area. Stop mowing if anyone is within
100 yards of mower.
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-2)
All Safety Shields, Guards and Safety devices including (but not
limited to) - the Deflectors, Chain Guards, Steel Guards, Gearbox
(SGM-3)
The rotating parts of this machine have been designed and tested for rugged use.
However, the blades could fail upon impact with heavy, solid objects such as metal guard
rails and concrete structures. Such impact could cause the broken objects to be thrown
outward at very high velocities. To reduce the possibility of property damage, serious
injury, or even death, never allow the cutting blades to contact such obstacles.
SAFETY
(SGM-4)
reme care should be taken when operating near loose objects suc
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-5)
any 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-6)
ow 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.
Avoid mowing in reverse direction when possible. Check to make sure there are no
persons behind the mower and use extreme care when mowing 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-8)
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.
Replace bent or broken blades with new blades. NEVER ATTEMPT TO STRAIGHTEN,
SAFETY
WELD, OR WELD HARDFACING ON BLADES SINCE THIS WILL LIKELY CRACK OR
OTHERWISE DAMAGE THE BLADE WITH SUBSEQUENT FAILURE AND POSSIBLE
SERIOUS INJURY FROM THROWN BLADES.
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.
(SGM-9)
(SGM-10)
(SRM-7)
Never leave the Tractor and Implement unattended while the Implement is in the lifted
position. Accidental operation of lifting lever or a hydraulic failure may cause sudden drop
of unit with injury or death by crushing. To properly park the implement when disconnecting it from the tractor,
lower the stand and put the retaining pin securely in place, or put a secure support under the A-Frame. Lower
the implement carefully to the ground. Do not put hands or feet under lifted components.
Rotary Mowers are capable under adverse conditions of throwing
objects for great distances (300 feet or more) and causing serious injury
or death. Follow safety messages carefully.
STOP MOWING IF PASSERSBY ARE WITHIN 100 YARDS 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-1)
SAFETY
Be particularly careful when transporting the Implement with the Tractor. Turn curves or go
up hills only at a low speed and using a gradual steering angle. Rear mounted implements
move the center of gravity to the rear and remove weight from the front wheels. Make certain, by adding fron
ballast, that at least 20% of the tractor’s weight is on the front wheels to prevent rearing up, loss of steering
control or Tractor tip-over. Slow down on rough or uneven surfaces to prevent loss of steering control which
could result in property damage or possible injury. Do not transport unless 3-Point lift lever is fully raised and
in the latched transport position. Dropping implement in transport can cause serious damage to the tracto
and/or Implement and possibly cause the operator or others to be injured or killed. (S3PT-2)
There are obvious and hidden potential hazards in the operation of this Implement as in all
power-driven or pulled equipment. REMEMBER! This machine is often operated in rough
terrain conditions that include tall grass, weeds, gullies, holes, slopes, hidden obstructions
and the like. Serious injury or even death may occur unless care is taken to assure the
safety of the operator and bystanders in the area. Do not operate this machine with anyone
in the immediate area.
Make sure the PTO shield, integral driveline shields, and input shields
are is installed when using PTO-driven equipment. Always replace any
shield if it is damaged or missing.
Relieve hydraulic pressure prior to doing any maintenance or repair work
on the Implement. Place the Implement on the ground or securely
blocked up, disengage the PTO, and turn off the tractor engine. Push
and pull the Remote Cylinder lever in and out several times prior to
starting any maintenance or repair work.
The rotating parts of this machine continue to rotate even after the PTO has been turned off.
The operator should remain in his seat for 60 seconds after the brake has been set, the
PTO disengaged, the tractor turned off, and all evidence of rotation has ceased.
“Wait a minute...Save a life!”
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
SAFETY
running. Rotating Parts, Blades or Drivelines could turn without warning and cause
immediate entanglement, injury or death.
Follow these guidelines to reduce the risk of equipment and grass fires
while operating, servicing, and repairing the Mower and Tractor:
(S3PT-9)
(S3PT-11)
(S3PT-10)
-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)
Do not mow with two machines in the same area except with Cab tractors with the windows
closed.
(SGM-11)
Replace bent or broken blades with new blades. NEVER ATTEMPT TO STRAIGHTEN,
WELD, OR WELD HARDFACING ON BLADES SINCE THIS WILL LIKELY CRACK OR
OTHERWISE DAMAGE THE BLADE WITH SUBSEQUENT FAILURE AND POSSIBLE
SERIOUS INJURY FROM THROWN BLADES.
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
In a
hazard control and accident prevention are dependent upon the awareness, concern, prudence, and proper
training of personnel involved in the operation, transport, maintenance, and storage of the machine. Refer
also to Safety Messages and operation instruction in each of the appropriate sections of the Tractor and
Equipment Manuals. Pay close attention to the Safety Signs affixed to the Tractor and Equipment.
on to the design and configuration of
ement, including Safety Signs and Safety Equipment,
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
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;
SAFETY
Employer Responsibilities:
(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 Regulations
OSHA regulations state in part: “At the time of initial assignment and at least annually thereafter, the employer
shall instruct every employee in the safe operation and servicing of all equipment with which the employee is,
or will be involved.”
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 passerbys come within 25 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.)
This Rotary Cutter is designed with care and built with quality materials by skilled workers. Proper assembly,
maintenance, and operating practices, as described in this manual, will help the owner/operator get years of
satisfactory service from the machine.
The purpose of this manual is to familiarize, instruct, and train. The Assembly Section instructs the owner/
operator in the correct assembly of the Cutter using standard and optional equipment. The Parts Listing
section is designed to familiarize the owner/operator with replaceable parts on the Cutter. This section
provides exploded assembly drawings of each Cutter component illustrating each piece and the corresponding
part number.
Careful use and timely service saves extensive repairs and costly downtime losses. The Operations and
Maintenance sections of the manual trains the owner/operator how to work the Cutter correctly and attend to
appropriate maintenance. The Trouble-Shooting Guide helps diagnose difficulties with the Cutter and offers
solutions to the problems.
Safety is of primary importance to the owner/operator and to the manufacturer. 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. Many of the Safety Messages will be repeated throughout the manual. The owner/operator/dealer
INTRODUCTION
should know these Safety Messages before assembly and be aware of the hazards of operating this blade
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.
These rugged Cutters are designed for heavy-duty work. They can mow pastures, cut brush up to 4” in
diameter, and control grass and weeds on highways or industrial sites.
For Non-Agricultural use, OSHA, ASAE, SAE, and ANSI standards require the use of Chain
Guards or Solid Skirts at all times. The Cutter manufacturer strongly recommends the use
of Chain Guards or Solid Skirts for Agricultural purposes as well, to reduce the risk of
property damage, serious bodily injury, or even death from objects thrown out by or from
contact with the Cutting Blades.
The 60" machine requires a minimum of 30 HP for both 540 and 1000 RPM machines. The 72" Cutter requires
at least 35 HP for 540 and 1000 RPM machines. The maximum allowable horsepower for either size is 90HP.
At least 20% or the tractor’s weight must be on the front tires with the implement lifted to
provide adequate traction for safe steering under good conditions. Slow down on hills,
rough terrain, and curves.
Front and rear, and left and right are determined by the normal direction of travel (the same as on your
automobile).
1. Carefully read the Operator’s Manual, completely understand the Safety Messages and instructions, and
know how to operate correctly both the tractor and implement.
2. Fill out the Warranty Card in full. Be sure to answer all questions, including the Serial Number of the
implement. Mail within 30 days of delivery date of this implement.
NOTE: Warranties are honored only if completed “Owner Registration and Warranty” forms are received by
Alamo Group within thirty days of delivery of the implement.
3. Record the Mower Model and Serial Numbers on the Warranty page at the front of the Operator’s Manual.
Keep this as part of the permanent maintenance file for the implement..
To assemble the Mower’s A-Frame, follow the procedures listed below:
1. Place one rear brace (3) (end with smaller hole)
to the inside of each lift lug located in the mid
section of the mower on each side of the gearbox. Position the braces so when attached to
the lugs, the braces bend towards the center of
the mower. Align the holes of the lugs and
braces and insert a 5/8” x 1-1/2” bolt (6) and
retain with a 5/8” locknut (5). Do not completely
tighten at this time.
2. One side at a time, position an A-frame leg (2)
to the inside of a inner lift lug located in the front
of the mower. The leg must be positioned with
the smaller hole to the bottom and the bend of
the leg to the center of the mower. Align the leg
ASSEMBLY
hole and inner lug back hole and retain together
with a 5/8” x 2” bolt (7) and 5/8” flat washer (8)
and locknut (5). Repeat procedure for opposite
side.
3. Position bushing (13) within the toggle link (4)
back set of holes (holes closest to bend). Raise
rear braces (3) and position against each side
of toggle link and bushing. Raise A-frame legs
and position to the outside of each rear brace.
Insert a 3/4” x 6” bolt (10) through A-frame legs,
rear braces, toggle link, and bushing and retain
with a 3/4” locknut (9).
4. Tighten all bolts and locknuts per recommended torque at this time.
To assemble the Mower’s TailWheel, follow the procedures listed below. Note: Certain steps may have been
performed by the manufacturer before delivery.
1. Place a 1-1/2” flatwasher (3) on the shaft of the
caster fork & wheel assembly (5). Attach
assembly to tailwheel beam (1) by inserting
shaft through the large hole of the tailwheel
beam. The beam must be positioned with its
grease fitting on the opposite end of the
tailwheel. Note: A light coat of grease can be
placed on the shaft for easier installation. After
the shaft is completely inserted, place another
1-1/2” flat washer onto the shaft and retain by
inserting a cotter pin (4) through shaft above
the washer. Spread ends of cotter pin.
2. Slide tailweel positioning bracket (2) onto
tailwheel beam. Position the opposite end of
the tailwheel beam between the set of lugs in
the mid section of the mower deck behind the
gearbox. Align holes of the lugs and tailwheel
beam and retain with a 5/8” x 4” bolt (7) and 5/
8” locknut (6).
3. Place the mid section of the tailwheel beam
between the tailwheel beam support brackets at
the desired cutting height. Note: The rear deck
height is set by raising or lowering the tailwheel
beam. Raise the beam to reduce the height of
cut, lower the beam to increase the height of
cut. Retain the beam in this position by
securing the positioning bracket to support
braces with two 1/2” x 1-1/2” bolts (8) and 1/2”
locknuts (9).
4. Tighten all bolts, lockwashers, and nuts to the
recommended torque and grease fitting on end
of tailwheel beam until grease is visible on
either end of shaft.
ASSEMBLY
Front and Rear Deflectors (Standard Equipment) and Chain Guards
(Optional Equipment at Extra Cost)
Front and Rear rubber-fabric Deflectors are Standard Equipment and Front and Rear Chain
Guards are optional . One type of guard must be installed (and maintained in good repair)
except for agricultural purposes only in areas where persons, vehicles, livestock, or other
property will not be endangered by thrown objects and where such safety equipment would
prevent the mower's reasonable performance of its assigned agricultural task. Assy01-
Deflectors: Front and Rear Deflectors (Standard Equipment) are recommended for the average user and will
provide protection from thrown objects with proper operation under normal conditions. Deflectors must be
maintained in good repair or replaced after no more than two inches of wear off lower edge.
Front Rubber Fabric Deflectors (Standard Equipment)
Front Deflector (Figure Asm-0003)
1. Attach the Front Bracket (1) to the front of the
mower with 1/2" x 3" Bolts (3), Flatwashers (9)
and Locknuts (4).
2. Attach the Front Deflector (2) to the Bracket
with 3/8" x 1-1/2" Bolts (5), Woodwashers (8),
Flatwashers (6), and Locknuts (7).
ASSEMBLY
Deflector Corner Plates (Used on Deflectors & Chainguards)
Deflector Corner Plate (Figure Asm-0004)
1. Attach the corner plate (1) to the side of the
deck with a 1/2" x 1-1/4" Bolt (2), and Locknut
(2).
1. Attach both Deflectors (1 & 2) to deck using 1/
2" x 1-1/4" Bolts (5) and Locknuts (6). In center
of deck use Bolt 8) and Locknut (6) to tie both
Deflectors (1 & 2) together.
2. Secure Debris Deflector (3) to Deflector (1 & 2)
using 1/2" x 1-1/4" Bolts (5), Bar (4),
Flatwashers (7), and Locknuts (8).
3. Fasten Rear Plate (9) on both ends of Deflector
(1 & 2) using 1/2" x 1-1/4" Bolts (5) and
Locknuts (6).
Chainguards (Optional Equipment at Extra Cost)
Chainguards
Front and Rear Chain Guards (Optional Equipment) are recommended for higher than normal usage (100
hours or more per year) and will provide protection from thrown objects with careful operation. Chain Guards
must be maintained in good repair by replacing missing or worn sections or by replacing completely when worn
or damaged.
ASSEMBLY
Front Chain Guard (Figure Asm-0006)
1. Attach Chainguard Plate (1) to deck using 5/8"
x 3-1/2" Bolts (4), Washers (5), and Locknut (6).
2. Insert the individual Chain Links (2) into slotted
holes in Chain Guard Plate (1) and secure in
place with Rod (3) (Complete Chainguard
Assemblies are available. See Parts Section in
this book.)
1. Attach the corner plate (1) to the side of the
deck with a 1/2" x 1-1/4" Bolt (2), and Locknut
(2).
Rear Chain Guards (Optional Equipment)
Rear Chain Guard (Figure Asm-0007)
1. Attach both Deflectors (1 & 2) to deck using 1/
ASSEMBLY
2" x 1-1/4" Bolts (4) and Locknuts (5). In center
of deck use Bolt (7) and Locknut (5) to tie both
Deflectors (1 & 2) together.
2. Secure Chainguard Assembly (3) to Deflectors
(1 & 2) using 1/2" x 1-1/4" Bolts (4),
Flatwashers (6), and Locknuts (5).
3. Fasten Rear Plate (8) on both ends of
Deflectors (1 & 2) using 1/2" x 1-1/4" Bolts (4)
and Locknuts (5).
ASSEMBLY
Driveline Attachment - CY60 (Figure Asm-0008)
Before starting assembly, make certain that all
paint, dirt, and grease are removed from gearbox
shaft (1). To ease assembly apply a light coat of
grease to splines and assemble. Do not assemble a
driveline without a shield. Entanglement in rotating
shafts can kill.
1. Attach the slip clutch end of the driveline to the
gearbox input shaft securely. Make certain that
the slip clutch is fully onto the input shaft
splines. Tighten the locknuts (2) alternately
until they have reached the proper torque.
Refer to Torque Chart in the Maintenance
Section.
1. Remove Wing Nut holding Gearbox Shield and
raise Shield. Remove any tape from Gearbox
shafts. Attach the Clamp Yoke end of the
Driveline to the Gearbox. Tighten bolts evenly
to their proper torque. Figure 10. Attach the
slip clutch to the Gearbox by sliding the Slip
Clutch to the splined shaft on the Gearbox and
tighten the set screw. Attach the Flange Yoke
of the Driveline to the Slip Clutch with the bolts
provided. Move yoke/clutch group back and
forth to make sure it is locked in place. Install
the Driveline with slide collar to the Gearbox by
sliding the collar back while attaching the yoke
to the splined shaft on the gearbox. Check to
make sure it is locked in place.
Offset Adapter Hitch - Extra Equipment (Figure Asm-0010)
1. Fasten the Offset Adapter Hitch Weldment to
the lift lugs using the Hitch Pin holes. Fasten
the Adjustable Leg to the left side lug if the
Cutter is to offset to the left. The Cutter will
make a cleaner cut behind the wheel tracks if it
is offset to the left. Reverse the Assembly for
right offset.
2. Install the Brace Bars. Fasten the chain end to
the rear mounting hole in the Gearbox Base
Plate. Adjust the Brace Bar so the Hitch
Assembly is nearly perpendicular.
3. Attach the Cutter to the tractor. Install stabilizer
bars or adjust sway chains to prevent side sway
of the Cutter.
ASSEMBLY
Stabilizer Bars or Sway Chains must be installed and adjusted tightly. Without these bars or
chains, serious damage to the Driveline can occur, and broken parts could cause bodily
injury to the operator or bystanders. Stabilizer Bars or Sway Chains are available at most
tractor dealerships.
4. Raise the Cutter to check clearance between the Driveline and Cutter Deck. Set the lift stop on the tractor
to ascertain that the Driveline does not strike the deck.
Check Chains - Extra Equipment - for Lift-Models (Figure Asm-0011)
1. Check Chains are available for attachment to
front of Mower as an accessory. Check chains
are used to control cutting height and especially
allow Mower to be lowered to the same preset
cutting height effortlessly.
2. Install lower end of check chain (4) to hitch ears
(6) through lower holes (7) using bolts, nuts and
lockwashers(8). Tighten securely.
3. Install chain lugs (3) on either side of tractor top
link mounting (5) using bolt or pin of required
diameter and length. Cat I kit requires a 3/4"
diameter bolt. Cat II kit requires a 1" diameter
bolt. Install top end of check chains in brackets
(3).
4. Cutting height is then set by placing proper
ASSEMBLY
chain link in keyhole slot. Cutting height is
easily adjustable by hooking chain higher or
lower in the keyholes in chain lug (3).
For additional safety in transport, raise mower as high as possible without having driveline
hit deck and shorten check chains as much as possible to prevent inadvertent falling in
transport.
Rhino Cyclone 60 and 72 (CY60/72) Heavy-Duty Rotary Mowers are manufactured with quality material by
skilled workers. These rugged mowers are engineered for cutting vegetation up to 3” diameter in commercial,
industrial, and agriculture applications such as mowing rights-of-way, roadsides, and pastures. The mower is
equipped with protective safety deflectors and/or chain guards to prevent objects being thrown by blades,
however, no shielding is 100% effective. All shields, deflector’s, 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.
This section of the Operator’s Manual is designed to familiarize, instruct, and educate safe and proper cutter
use to the operator. Pictures contained in this section are intended to be used as a visual aid to assist in
OPERATION
explaining the operation of a rotary mower and are not of a CY60/72 mower. Some pictures 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 CY60/72, 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. Refer to the
Torque Chart at the end of the Maintenance Section to ensure bolts are properly tightened.
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
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.
Si no lee ingles, pida ayuda a alguien que si lo lea para que le traduzca las
medidas de seguridad.
ower is designed for certain mowing applications and is rated to cut up to a spec
size vegetation (see Mower Standard Equipment and Specifications). DO NOT use this
mower to cut vegetation above the Mower’s rated capacity or to cut any type of non-vegetative material. Only
operate this Mower on a properly sized and equipped Tractor. Operating this Mower in an application for
which it is not designed and/or operating the Mower with the wrong size Tractor can cause Mower component
damage and equipment failure resulting in possible serious injury or death.
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)
OPERATION
•Protective Eye Glasses, Goggles, or Face
Shield
•Hard Hat
•Steel Toe Safety Footwear
•Gloves
•Hearing Protection
•Close Fitting Clothing
•Respirator or Filter Mask (depends on
operating conditions) OPS-U- 0002
NEVER 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.
operator or others could result if the operator is under the influence of
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.
•Front End Weight ............................. As needed to maintain 20% weight on front axle
•Power Take Off................................. 540 RPM 6-spline or 1000 RPM 21-spline shaft
OPERATION
3.1 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 model 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 rollover-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)
3.2 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
The horsepower required to operate the mower depends on several operating factors including the vegetation
to be cut, terrain condition, operator experience, condition of the mower and tractor, and others. For most
mowing conditions, the CY72 mower requires a tractor with a minimum of 40 HP. Operating the mower with a
tractor that does not have adequate power may damage the tractor engine. Exceeding 75 HP may cause
mower damage by overpowering the unit in heavy cutting conditions.
3.3 3-Point Hitch
The tractor 3-point hitch must be rated to lift at least
1338 lbs. if attaching a CY72 mower.
CY/72 mowers can attach to tractor’s with either a
CAT I or II hitch. Refer to the tractor operator’s
manual for the category of the tractor used. If the
hitch does not conform to ASAE Cat I or II
dimensions, the mower may not fit or raise properly.
Consult an authorized dealer for possible
OPERATION
modification procedures to mount nonconforming
hitches.
Use the correct hitch pins for the hitch category
being used. For a Cat I hitch, 7/8” lower and 3/4”
upper diameter hitch pins are used and Cat II
hitches require 1-1/8” lower and 1” upper diameter
hitch pins.
CAT I Implement / Hitch Specification CAT II Implement/ Hitch Specification
Width from outside to outside A-frame.... 26 7/8”Width from outside to outside A-frame....32-3/8”
Quick Hitch width inside lug to lug ......... 27 1/8”Quick Hitch width inside lug to lug ..........33-5/8”
Height from bottom hitch pin to top pin... 18”Height from bottom hitch pin to top pin ...19”
A minimum of 20% total tractor weight must be maintained on the tractor front end at all times. Front end
weight is critical to maintain steering control and to prevent the tractor from rearing up while driving. If the
front end is too light, add weight until a minimum of 20% total weight is reached on the front tires. Front
weights and weight carriers can be purchased through an authorized tractor dealership. OPS-U- 0005
Depending on the unit, the mower is designed to operate at a PTO speed of 540 or 1000 RPM. 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 or a 1-3/4” 20 spline shaft. Refer to the tractor owner’s manual for instructions to change PTO speeds on
models that operate at more than one speed.
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. OPS-U- 0006
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)
4. GETTING ON AND OFF THE TRACTOR
OPERATION
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 the Tractor while the tractor is moving. Mount the Tractor
only when the Tractor and all moving parts are completely stopped.
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)
OPERATION
Never allow children or other persons to ride on the Tractor or Implement.
Falling off can result in serious injury or death.
(SG-10)
4.2 Dismounting the Tractor
Before dismounting, park the tractor and implement on a reasonably level surface, apply the parking brake,
idle the engine down, disengage the PTO, and lower the implement to the ground. Shut down the tractor
engine according to the operator’s manual, remove the key, and wait for all motion to completely stop. Never
leave the seat until the tractor, its engine and all moving parts have come to a complete stop.
Use hand rails and steps when exiting the tractor. Be careful of your step and use extra caution when mud,
ice, snow or other matter has accumulated on the steps or hand rails. Use all handrails and steps for support
and never rush or jump off the tractor. OPS-U- 0009
BEFORE leaving the tractor seat, always engage the 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.
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 lever.
•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.
OPERATION
After the tractor engine is running, avoid accidental contact with the tractor transmission to prevent sudden
Never run the Tractor engine in a closed building or without adequate ventilation. The
exhaust fumes can be hazardous to your health.
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)
(SG-23)
6. 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.
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 between the respective
set of mower A-frame lift lugs. 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 Opera-
OPERATION
tor’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.
(S3PT-15)
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.
7. 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.
7.1 Setting Mower Height
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.Level the mower deck front to rear by
extending or retracting the 3-point top link.
(SG-14)
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
beam positioning bracket to the support
brackets and allow the tailwheel to rest at
ground level. Align beam and positioning
brackets holes with closest set of holes in
support brackets and reinstall bolts securing
the beam in position. 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.
To facilitate safe and efficient 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. In addition, a more even
distribution of the clippings from the rear of the
mower will be achieved with this deck pitch.
Adjust the leveling rods linking the tongue to the
rear axle until the front of the mower is at least 3/4”
lower in the front that than the rear. To lower the
front, lengthen the leveling rods and to raise the
front shorten the leveling rods. IMPORTANT: Adjust the leveling rods the same amount and maintain equal
OPERATION
tension in the rods. Improper adjustment may cause rods to snap or bend. Retighten the jamnuts after the
deck pitch has been set. OPS-R-0002
8. 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.
After the driveline is securely attached, place the
tractor PTO master shield back in the operating position. OPS-R-0003
en attaching the Implement input driveline to the Tractor
connecting yoke spring activated locking collar slides freely and the locking balls are seated
securely in the groove on the Tractor PTO shaft. A driveline not attached correctly to the
Tractor PTO shaft could come loose and result in personal injury and damage to the
Implement.
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)
When fitting the mower to the tractor, the telescoping driveline must be inspected to ensure that at its most
compressed position, the profiles do not “bottom out”, and when at its farthest extended position, there is
sufficient engagement between the profiles to operate safely. At its shortest length, there must be at least a 1”
clearance between each profile end and opposite profile universal joint. At its farthest operating extension, a
minimum profile engagement of 9” must be maintained.
ng 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.
•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, the driveline
must be shortened. OPS-R-0004_A
The CY72 driveline is a bar and welded sleeve assembly and its length cannot be modified as described
above. Contact your authorized dealer or Rhino Customer Service for recommendations to fit the mower to
the tractor if there is a potential problem bottoming out the driveline.
Engagement Check Procedure
•With the driveline attached, raise and lower the mower within its operating range. 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 9”, the shaft is considered too short and should be replaced with a longer
shaft. Consult an authorized dealer to purchase the required driveline length.
OPERATION
NOTE: When raising the mower, at least 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_P
9. PRE-OPERATION INSPECTION AND SERVICE
Before each use, a pre-operation inspection and service of the implement and tractor must be performed.
This includes routine maintenance and scheduled lubrication, inspecting that all safety devices are equipped
and functional, and performing needed repairs. DO NOT operate the unit if the pre-operation inspection
reveals any condition affecting safe operation. Perform repairs and replacement of damaged and missing
parts as soon as noticed. By performing a thorough pre-operation inspection and service, valuable down time
and repair cost can be avoided. OPS-U-0029
Always disconnect the main PTO Driveline from the Tractor before performing service on
the Implement. Never work on the Implement with the tractor PTO driveline connected and
running. Rotating Parts, Blades or Drivelines could turn without warning and cause
immediate entanglement, injury or death.
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.
9.1 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:
(SG-21)
OPERATION
•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
9.2 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
•Ensure the mower hitch is securely attached to
the tractor drawbar with a proper size bolt and
OPERATION
secured nut.
•Ensure that a properly rated safety tow chain is
equipped securing the mower to the tractor.
•Check that the driveline is securely attached to
the tractor and the clamping cone is seated in
the groove of the PTO shaft. OPS-R-0008_A
•Ensure deflectors and/or chainguards are in
position and not damaged. Replace worn,
broken, and missing pieces. OPS-R-0038
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)
•Ensure the tractor PTO master shield and the
mower slip clutch shield are in place, lowered,
and in good condition.
•Ensure the driveline integral shield is in good
condition and rotates freely.
•Ensure the driveline slip clutch (if equipped) is
properly adjusted. OPS-R-0039
•Inspect the gearbox oil level. A low oil level is a
warning sign that the gearbox may be cracked
or its seal is damaged and needs replacement.
•Ensure the gearbox vent is in place and free
from clogs. OPS-R-0040
•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 carrier hub nut is tightened with the
cotter pin inserted and spread. OPS-R-0041
Replace bent or broken blades with new blades. NEVER ATTEMPT TO STRAIGHTEN,
WELD, OR WELD HARDFACING ON BLADES SINCE THIS WILL LIKELY CRACK OR
OPERATION
9.3 Cutting Component Inspection
Inspect blade pan and blade assembly for the following:
OTHERWISE DAMAGE THE BLADE WITH SUBSEQUENT FAILURE AND POSSIBLE
SERIOUS INJURY FROM THROWN BLADES.