Assembly and proper installation of this prod uct is the responsib ility of the Frontier dea ler. Read manual instructions
and safety rules. Make sure all item s on the Dealer ’s Pre- Delivery and Delivery Che ck Lists in the Ope rator ’s Manual
are completed before releasing equipment to the owner.
TO THE OWNER:
Read this manual before ope rating yo ur Fron tier e quipment. T he info rmation pres ented wi ll prepare you to do a better
and safer job. Keep thi s manual handy for ready referenc e. Require all operators to read this m anual carefully and
become acquainted with all the adjustment and operating procedures before attempting to operate. Replacement
manuals can be obtained from your selling dealer.
The equipment you have purchased has been carefully engineered and manufactured to provide dependable and
satisfactory use. Like all mechanical products, it will require cleaning and upkeep. Lubricate the unit as specified.
Observe all safety information in this manual and safety decals on the equipment.
For service, your authori zed Fro ntier deal er has train ed mech anics , genui ne Front ier se rvice parts, and the nec essa ry
tools and equipment to handle all your needs.
Use only genuine Frontier service parts. Substitute parts will void the warranty and may not meet standards required for
safe and satisfactory operation. Record the model number and serial number of your equipment in the spaces
provided:
Model: ______________________________Date of Purchase: _____________________
Serial Number: (see Safety Decal section for location) ____________________________________
Provide this information to your dealer to obtain correct repair parts.
Throughout this manual, the ter m NOTICE is used to indicate that failure to observe can cause damage to equipment.
The terms CAUTION, WARNING and DANGER are used in conju nction with the Safety- Alert Symb ol, (a triangl e with
an exclamation mark), to indicate the degree of hazard for items of personal safety.
Chain Shielding417 lbs.521 lbs.624 lbs.
Blade Speed (feet per minute)16,20018,00018,100
Blade Spindles333
Number of Blades333
Universal Drive SeriesASAE Cat. 3ASAE Cat. 3ASAE Cat. 3
Implement Code for Tractor Ballast25.431.738.0
Caster Wheels3.5 x 4 x 103.5 x 4 x 103.5 x 4 x 10
Tractor PTO Speed RPM540540540
Recommended Maximum
Tractor Horsepower15-2525-3525-35
Mower Frame Thickness10 GA8 GA8 GA
GENERAL INFORMATION
Some illustrations in this manual show the
equipment with safety shields removed to provide
a better view. This equipment should never be
operated with any necessary safety shielding
removed.
The purpose of this manual is to assist you in operating
and maintaining your mower. Read it carefully. It furnishes information and instructions that will help you
achieve years of dependable performance. These
instructions have been compiled from extensive field
experience and engineering data. Some information
may be general in natur e, due to unknown and varyin g
operating conditions. However, through experience
and these instructio ns, you should be able to develo p
procedures suitable to your particular situation.
The illustrations and data used in this manual were current at the time of printing. However, due to possible
inline production changes, your machine may vary
slightly in detail. We reserve the right to redesign and
change the machines as may be necessary without
notification.
Throughout this m anual, references are made to right
and left directions. Th ese are determined by standing
behind the tractor facing the direction of forward travel.
4 Introduction
5WPMAN07 05 (Rev. 2/16/2009)
TRAINING
Safety is a primary concern in the design and
manufacture of our products. Unfortunately, our
efforts to provide safe equipment can be wiped
out by an operator’s single careless act.
In addition to the design and configuration of
equipment, hazard control and accident prevention are dependent upon the awareness, concern,
judgement, and proper training of personnel
involved in the operation , transport, maintenan ce
and storage of equipment.
It has been said “The best safety device is an
informed, careful operator.” We ask you to be that
kind of operator.
SAFETY RULES
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Safety instructions are important! Read all
attachment and power unit manuals; follow all
safety rules and safety decal information. (Replacement manuals and safety decals are a vailable from
your dealer.) Failure to follow instructions or safety
rules can result in serious injury or death.
Know your controls and how to stop engine and
attachment quickly in an emergency.
If you do not understand any part of this manual
and need assistance, see your dealer.
Operators must be instruct ed in and be ca pable
of the safe operation of the equipment, its attachments, and all controls. Do not allow anyone to
operate this equipment without proper instructions.
Never allow children or untrained persons to
operate equipment.
PREPARATION
Check that all hardware is properly installed.
Always tighten to torque chart specification s
unless instructed otherwise in this manual.
Connect PTO driveline directly to power unit
PTO shaft. Never use a dapter slee ves or adapter
shafts. Adapters can cause driveline failures due to
incorrect spline or incorrect operating length and
can result in personal injury or death.
Make sure driveline shield tether chains are
attached to the tra ctor and equi pmen t as sho wn in
this manual. Replace if damage d or broken. Chec k
that drivel ine guards ro tate freely on drivel ine
before putting equipment into service.
Before starting power unit, check a ll equipment
driveline guards for damage. Replace any damaged
guards. Make sure all guards rotate freely on all
drivelines. If guards do not rotate freely on drivelines, repair and replace bearin gs before putting
equipment into service.
Power unit must be equipped with ROPS or
ROPS cab and seat bel t. Keep seat belt secu rely
fastened. Falling off power unit can result in death
from being run over or crushed. Keep foldable
ROPS systems in “locked up” position at all times.
Remove accumulated debris from this equipment, power unit, and engine to avoid fire hazard.
Make sure all safety decals are installed.
Replace if damaged. (See S afety Deca ls se ct ion fo r
location.)
Make sure shields and guards are properly
installed and in good condition. Replace if damaged.
A minimum 20% of tractor and equipment
weight must be on the tractor front wheels when
attachments are in transport position. Without this
weight, tractor could tip over, causing personal
injury or death. The weight may be attained with
front wheel weights, ballast in tires or fr ont tractor
weights. Weigh the tractor and equipment. Do not
estimate.
Always wear relatively tight and belted clothing
to avoid entanglement in moving parts. Wear
sturdy, rough-soled work shoes and protective
equipment for eyes, hair, hands, hearing, and head;
and respirator or filter mask where appropriate.
Make sure attachment is properly secured,
adjusted, and in good operating condition.
Make sure spring-acti vated locking pin or collar
slides freely and is seated firmly in tractor PTO
spline groove.
GM3054/GM3060/GM 30 72 (R ev. 6/1/2008)
OPERATION
Inspect and clear area of stones, branches, or
other hard objects that might be thrown, causing
injury or damage.
Never direct discharge toward people, animals,
or property.
Keep bystanders away from equipment.
(Safety Rules continued on next page)
Safety 5
(Safety Rules continued from previous page)
SAFETY RULES
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Full chain shielding must be installed when
operating in populated areas or other areas where
thrown objects could injure peop le or damage
property.
• If this machine is not equipped with full chain
shielding, operation must be stopped when anyone comes within 300 feet (92 m).
• This shielding is designed to reduce the risk
of thrown objects. The mower deck and protective devices cannot prevent all objects from
escaping the blade enclosure in every mowin g
condition.
and escape, traveling as much as 300 feet (92 m).
Do not operate or transport equipment while
under the influence of alcohol or drugs.
Operate only in daylight or good artificial light.
Keep hands, feet, hair, and clothing away from
equipment while engine is running. Stay clear of all
moving parts.
Always comply with all state and local lighting
and marking requirements.
Never allow riders on power unit or attachment.
Always sit in power unit seat when operating
controls or starting engine. Secu rely faste n seat
belt, place transmission in neutral, engage brake,
and ensure all other controls are disengaged
before starting power unit engine.
Operate tractor PTO at 540 RPM. Do not exceed.
Look down and to the rear and make sure area
is clear before operating in reverse.
Do not operate or transport on steep slopes.
Do not stop, start, or change directions sud-
denly on slopes.
Use extreme care and reduce ground speed on
slopes and rough terrain.
Watch for hidden hazards on the terrain during
operation.
Stop power unit and implement immediately
upon striking an obstruction. Dismount power unit,
using proper procedure. Inspect and repair any
damage before resuming operation.
It is possible for objects to ricochet
TRANSPORTATION
Use additional caution and reduce speed when
under adverse surface conditions, turning, or on
inclines.
Do not operate PTO during transport.
A minimum 20% of tractor and equipment
weight must be on the tractor front wheels when
attachments are in transport position. Without this
weight, tractor could tip over, causing personal
injury or death. The weight may be attained with
front wheel weights, ballast in tires or front tra ctor
weights. Weigh the tractor and equipment. Do not
estimate.
Do not operate or transport on steep slopes.
Do not operate or transport equipment while
under the influence of alcohol or drugs.
Always comply with all state and local lighting
and marking requirements.
Never allow riders on power unit or attachment.
MAINTENANCE
Before working underneath, carefully read Op erator’s Manual instructions, disconnect driveline,
raise mower, securely block up all co rners with
jackstands, and check stability. Secure blocking
prevents equipment from dropping due to hydraulic leak down, hydraulic system failures, or
mechanical component failures.
Do not modify or alter or permit anyone else to
modify or alter the equipment or any of i ts components in any way.
Always wear relatively tight and belted clothing
to avoid entanglement in moving parts. Wear
sturdy, rough-soled work shoes and protective
equipment for eyes, hair, hands, hearing, and head;
and respirator or filter mask where appropriate.
Make sure attachment is properly secured,
adjusted, and in good operating condition.
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.
Make certain all movement of equipment components has stopped before app roaching for se rvice.
(Safety Rules continued on next page)
6 Safety
GM3054/GM3060/ GM 30 72 (R ev. 6/1/2008)
(Safety Rules continued from previous page)
SAFETY RULES
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Never go underneath equipment (lowered to the
ground or raised) unless it is properly blocked and
secured. Never place any part of the body underneath equipment or between moveab le parts even
when the engine has been turned off. Hydraulic
system leak down, hydraulic system failures,
mechanical failures, or movemen t of con trol lever s
can cause equipment to drop or rotate unexpectedly and cause severe injury or death. Follow Operator's Manual instructions for working underneath
and blocking requirements or have work done by a
qualified dealer.
Frequently check blades. They should be sharp,
free of nicks and cracks, and securely fastened.
Do not handle blades with bare hands. Careless
or improper handling may result in serious injury.
Your dealer can supply genuine replacement
blades. Substitute blades may not meet original
equipment specifications and may be dangerous.
Tighten all bolts, nuts, and screws to torque
chart specifications. Check that all cotter pins ar e
installed secu rely to ensu re eq uipme nt is i n a sa fe
condition before putting unit into service.
Make sure all safety decals are installed.
Replace if damaged. (See S afety Deca ls se ct ion fo r
location.)
Make sure shields and guards are properly
installed and in good condition. Replace if damaged.
Wear gloves when installing belt. Be careful to
prevent fingers from being caught between belt
and pulley.
Use care when installing or removing belt from
spring-loaded idler. Springs store energy when
extended and, if released suddenly, can cause personal injury.
STORAGE
Follow manual instructions for storage.
Keep children and bystanders away from stor-
Do not put hands or feet under or into mower when
engine is running.
Before mowing, clear area of objects that may be
thrown by blade.
Keep bystanders away.
Keep guards in place and in good condition.
BLADE CONTACT OR THROWN OBJECTS CAN
CAUSE SERIOUS INJURY OR DEATH.
8 Safety
15503-C
CRUSHING AND PINCHING HAZARD
Be extremely careful handling various parts of
the machine. They are heavy and hands, fingers,
feet, and other body parts could be crushed or
pinched between tractor and implement.
Operate tractor controls from tractor seat only.
Do not stand between tractor and implement
when tractor is in gear.
Make sure parking brake is engaged before
going between tractor and implement.
Stand clear of machine while in operation or
when it is being raised or lowered.
INSTRUCTIONS COULD RESULT IN
WARNING
FAILURE TO FOLLOW THESE
SERIOUS INJURY OR DEATH.
5WPMAN0705 (Rev. 5/9/2008)
1003751-A
SAFETY & INSTRUC TIONAL DECALS
GUARDMISSING.
DONOTOPERATE.
DANGER
33347E
DANGER
DANGER
GUARDMISSING.
DONOTOPERATE.
FALLING OFF CAN RESULT IN BEING RUN OVER.
Tractor must be equipped with ROPS (or ROPS CAB) and seat
belt. Keep foldable ROPS systems in “locked up” position at all
times.
Buckle Up! Keep seat belt securely fastened.
Allow no riders.
RAISED EQUIPMENT CAN DROP AND CRUSH.
Before working underneath, follow all instructions and safety rules in
operator’s manual and securely block up all corners of equipment
with jack stands.
Securely blocking prevents equipment dropping from hydraulic leakdown, hydraulic system failures or mechanical component failures.
FALLING OFF OR FAILING TO BLOCK SECURELY CAN
RESULT IN SERIOUS INJURY OR DEATH.
WARNING
18865--C
8 - 5WP18865
10 - 5WP33347
7 - 5WP1002423
DONOTEXCEEDPTOSPEEDOF
540 RPM
PTOspeedshigherthan540RPMcancause
equipmentfailureandpersonalinjury.
WARNING
18866-D
5 - 5WP18866
If shaft connection is visible, shield
is missing. Replace shield before
operating equipment.
DANGNGERER
1004114
9 - 5WP1004114
6 - 5WP18864
(Safety Decals continued from previous page)
BE CAREFUL!
Use a clean, damp cloth to clean safety decals.
Avoid spraying too close to decals when using a pressure
washer; high-pressure water can enter through very small
scratches or under edg es of decals causing them to peel or com e
off.
Replacement safety decals can be ordered free from your dealer.
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
DANGER
ROTATING DRIVELINE
CONTACT CAN CAUSE DEATH
KEEP AWAY!
DO NOT OPERATE WITHOUT -
All driveline guards, tractor and
equipment shields in place
Drivelines securely attached at both ends
Driveline guards that turn freely on
driveline
Replace Immediately If Damaged!
TO AVOID SERIOUS INJURY OR DEATH:
Read Operator's Manual before operating,
servicing or repairing equipment. Follow all
safety rules and instructions. (Manuals are
available from your selling dealer.)
Never allow riders.
Keep bystanders away from equipment during
operation.
Operate from tractor seat only.
Keep all shields in place and in good condition.
Lower equipment to ground, stop engine,
remove key and set brake before dismounting
tractor.
Never allow children or untrained persons to
operate equipment.
Do not transport towed or semi-mounted units
over 20 MPH.
18864-C
FAILURE TO FOLLOW THESE INSTRUCTIONS
CAN RESULT IN INJURY OR DEATH.
WARNING
1002423-B
5WPMAN0705 (Rev. 5/9/2008)
Safety 9
OPERATION
DANGER
WARNING
CAUTION
WARNING
WARNING
The operator is responsible for the safe operation of
the mower. The operator must be properly trained.
Operators should be familiar with the mower, the tractor, and all safety practices before starting operation.
Read the safety rules and safety decals on page 5
through page 9.
This mower is design ed for lawn and grass m owing. It
is not designed for rough conditions or heavy weed
mowing. It is equipped with suction type blades for best
results in lawn mowing.
Recommended mowing speed for most conditions is
from 2 to 5 mph.
Stop power unit and implement immediately
upon striking an obstruction. Dismount power unit,
using proper procedure. Inspect and repair any
damage before resuming operation.
Always wear relatively tight and belted clothing
to avoid entanglement in moving parts. Wear
sturdy, rough-soled work shoes and protective
equipment for eyes, hair, hands, hearing, and head;
and respirator or filter mask where appropriate.
TRACTOR STABILITY
Full chain shielding must be installed when
operating in populated areas or other areas where
thrown objects could injure peop le or damage
property.
• If this machine is not equipped with full chain
shielding, operation must be stopped when anyone comes within 300 feet (92 m).
• This shielding is designed to reduce the risk
of thrown objects. The mower deck and protective devices cannot prevent all objects from
escaping the blade enclosure in every mowin g
condition.
and escape, traveling as much as 300 feet (92 m).
Never allow children or untrained persons to
operate equipment.
Keep bystanders away from equipment.
Make sure spring-acti vated locking pin or collar
slides freely and is seated firmly in tractor PTO
spline groove.
It is possible for objects to ricochet
A minimum 25% of tractor and equipment
weight must be on the tractor front wheels when
attachments are in transport position. Without this
weight, tractor could tip over, causing personal
injury or death. The weight may be attained with a
loader. Weigh the trac tor and equ ipment. D o not
estimate.
Figure 1. Tractor Stability
ATTACHING MOWER TO T RACTOR
Operate tractor PTO at 540 RPM. Do not exceed.
Before working underneath, carefully read Oper-
ator’s Manual instructions, disconnect driveline,
raise mower, securely block up all cor ners with
jackstands, and check stability. Secure blocking
prevents equipment from dropping due to hydraulic leak down, hydraulic system failures, or
mechanical component failures.
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.
10 Operation
Make sure spring-activat ed locking pin or collar
slides freely and is seated firmly in tractor PTO
spline groove.
The standard 1-3/8" 6B-spline drive line with a QD yok e
is used to connect the mower to the tractor.
1. Attach the mower hitch pins to the lower tractor lift
arms and secure.
2. Attach tractor top link (1), Figure 2, to mower top
link bracket attachment point (A). Connect the
driveline to the tractor PTO shaft.
3. Attach tether chain to tractor drawbar (Figure 3).
5WPMAN0705 (Rev. 5/9/2008)
4. Adjust the tractor lower 3-point arm anti-sway
1. Tractor Top Link
A. Mower Top Link
Attachment Point
B. Mower Hitch Pin
CM906
Tether Chain
WARNING
Table 1: Cutting Height Chart
Spacers Required Under
Caster Arm Pivot Tube
Cut Height1/2" Spacer1" Spacer
1"00
1-1/2"10
2"01
2-1/2"11
3"02
3-1/2"12
4"03
4-1/2"13
A. Mower top link attachment point
B. Mower hitch pin
C. Tractor top link
D. Mower hitch plate
attachment point
(GM3054 only)
devices to prevent mower from swinging side to
side during transport.
Figure 2. Attachment Points
4. To raise rear of mower, move caster adjustment
spacers under rear caster arms.
5. To raise f ront of mower, move spacers under front
caster wheel arms.
TRACTOR TOP LINK ADJUSTMENT
Figure 3. Attaching Mower to Tractor
CUTTING HEIGHT ADJUSTMENT
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.
NOTICE
■ Avoid low cutting heights. Striking the ground
with blades produces one of the most damaging
shock loads a mower can encounter. Allowing
blades to contact ground repeatedly will cause
damage to mower and drive.
1. Level mower from side to side. Check by
measuring distance from mower frame to the
ground at each deck rail.
2. Verify that the same amount of spacers ar e under
all caster arms.
3. Control cutting height by adjusting front and rear
caster wheels.
(Rev. 6/1/2008)
5WPMAN0705 (Rev. 5/9/2008)
When the cutting height is set, adjust tractor top link
until mower top link a ttachment point (A), Figure 4, is
aligned vertically with mower hitch pin (B). The front
tires of the mower will lift off the ground before the rear
tires when the unit is raised. This will allow the mower
to follow the ground contour.
Figure 4. Top Link Adjustment
GM3054 Only
The GM3054 has two mower hitch plate attachment
points (D). It may be ne cessary to change the mo wer
hitch plate attachment poi nt to obtain proper tire clearance and/or lift height.
Operation 11
FRONT CASTER WHEEL INTERFERENCE
CAUTION
WARNING
CHECK
using proper procedure. Inspect and repair any
damage before resuming operation.
NOTICE
■ Do not operate tractor and mower until this
interference check has been performed. If you
change tractors, you must perform the check for
that mounting.
Perform this check with all of th e spacers and springs
above the caster wheel arm. This will place the caster
wheels in their high est positi on and provid e the lowes t
cutting height for the mower.
1. Raise mower with tractor hydraulics to 16" at
dimension C, Figure 5, or maximum height of
tractor lift, whichever is less.
2. Pivot both front caster wheels forward and che ck
that there is clear ance betw een caster wheels and
tractor tires.
3. If there is interference on GM3054 model, adjust
mower hitch plate point a s shown in Figure 4. On
model GM3060 and GM307 2, the hi tch pla te is not
adjustable; see tractor operator’s manual and
adjust tractor wheels accordingly.
Power for operating the mower is supp lied by th e tractor PTO. Operate PTO at 540 rpm. Know how to stop
tractor and mower quickly in an emergency.
If mower becomes p lugged causing belt to s lip fo r over
two seconds, follow these steps:
1. Maneuver equipment into a previously cut area
and allow mower to clear accumulated material.
2. Continue running at least two minutes, allowing
pulleys to cool. Stopping the mower when in
contact with a very hot pulley will bake and ruin
belt.
Proper ground spee d will depe nd upon the terrain, the
height, and type and density of material to be cut.
Normally, ground speed will range from 2 to 5 mph. Tall
dense material should be cut at a low speed; thin
medium-height mater ial can be cut at a faster ground
speed. Always operate tractor PTO at 540 rpm to maintain proper blade speed and produce a clean cut.
Under certain conditions, tractor tires may roll some
grass down and prevent it from being cut at the same
height as the surrounding area. When this occurs,
reduce your ground speed, but maintain PTO at 540
rpm. The lower groun d speed will permit gr ass to partially rebound.
Figure 5. Front Caster Wheel Interference Check
FRONT ROLLER (OPTIONAL)
The caster wheels effectively reduce scalping in most
cases. However, you may encoun ter areas where the
caster wheels an d/or side skids drop into depressions
and allow center of the mower to co ntact ground and
scalp. An optional front roller may be installed to minimize scalping. See page 40.
OPERATING TECHNIQUE
Stop power unit and implement immediately
upon striking an obstruction. Dismount power unit,
In general, lower cutting heights give a more even cut
and leave less tire tracks. Howe ver, it is better to cut
grass frequently rather than too short. Short grass
deteriorates rapidly in hot weather and invites weed
growth during growing seasons. Follow local recommendations for the suitable cutting height in your area.
Operating Tips
Inspect and clear area of stones, branches, or
other hard objects that might be thrown, causing
injury or damage.
Extremely tall material sh ould be cut twi ce. Set mower
at a higher cutting he ight for the first pass. Then cut a t
desired height, 90 degre es to the first pass. Remember, sharp blades produce cleaner cuts and require
less power.
Analyze area to be cut to determine the best procedure. Consider height and type of grass and terrain
type: hilly, level, or rough. Plan your mo wing pattern t o
travel straight forward whenever possible. Mow with
uncut grass to the right. This will distribute the clippings
over the cut area.
12 Operation
5WPMAN0705 (Rev. 5/9/2008)
Uneven Terrain
WARNING
WARNING
Do not operate or transport on steep slopes.
Do not stop, start, or change directions sud-
denly on slopes.
Use extreme care and reduce ground speed on
slopes and rough terrain.
Watch for hidden hazards on the terrain during
operation.
OWNER PRE-OPERATION CHECK LIST
(OWNER'S RESPONSIBILITY)
___ Review and follow all safety rules and safety
decal instructions on page 5 through page 9.
___ Check th at all safety decals are installe d and in
good condition. Replace if damaged.
___ Check that all shields and guards are properly
installed and in good condi tion. Replace if damaged.
Pass diagonally through sharp dips and avoid sharp
drops to prevent hanging up trac tor and mower. Practice will improve your skills in maneuvering rough terrain.
REMOVING MOWER FROM TRACTOR STORAGE
Follow cleaning procedure, page 17.
1. Disengage trac tor PTO and raise mower with the
3-point hitch.
2. Disconnect mower driveshaft from tractor PTO.
3. Collapse driveshaft as far as possible and store it
in PTO hanger bracket to prevent ground contact.
4. Place blocks under mower side skids. Lower
mower onto blocks, disconn ect mower from trac tor
3-point hitch, and careful ly drive tractor away from
mower.
Keep children and bystanders away from storage area.
___ Check that chain shielding is in good condition
and replace any damaged chain links.
___ Check that all har dware and cotte r pins are prop-
erly installed and secured.
___ Check to ensure blades are sharp, in good condi-
tion, and installed correctly. Replace if damaged.
___ Check that equipment is properly and securely
attached to tractor.
___ Make sure driveline spring-activated locking pin
or collar slid es freely and is seated firmly in t ractor PTO spline groove.
___ Make su re the driv eline gu ards and te ther chai ns
are in good conditi on. Guards must rotate freely
on driveline. Fasten tether chains to the tractor
and the equipment as instructed.
___ Inspect area and remove stones, branches or
other hard objects that might be thro wn, causing
injury or damage.
___ Do not allow riders.
Figure 6. Mower Storage Position
5WPMAN0705 (Rev. 5/9/2008)
___ Check all lubrication points and grease as
instructed in Lubrication Information, page 14.
Make sure the PTO slip joint is lubricated and that
the gearbox fluid levels are correct.
___ Set tractor PTO at 540 rpm.
___ Make sure tr actor ROPS or ROPS cab and seat
belt are in good condition. Keep seat belt
securely fastened during operation.
___ Before starti ng engine, operator must be in t rac-
tor seat with seat belt fastened. Pl ace transmis-
sion in neutral or park, engage brake, and
disengage tractor PTO.
Operation 13
OWNER SERVICE
WARNING
CAUTION
The information in this section is written for operators
who possess basic mechanical skills. If you need help,
your dealer has trained service tech nicians available.
For your protection, read and follow the sa fety info rmation in this manual.
Never allow children or untrained persons to
operate equipment.
Keep bystanders away from equipment.
Before working underneath, carefully read Oper-
ator’s Manual instructions, disconnect driveline,
raise mower, securely block up all cor ners with
jackstands, and check stability. Secure blocking
prevents equipment from dropping due to hydraulic leak down, hydraulic system failures, or
mechanical component failures.
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.
Make sure spring-acti vated locking pin or collar
slides freely and is seated firmly in tractor PTO
spline groove.
Operate tractor PTO at 540 RPM. Do not exceed.
When blocking, you must consider overall stability of
the unit. Just blocking under the unit will not ensure
your safety. The working surface must be level and
solid to support the loaded weight of the jackstands.
Test jackstand s tability before working under an y portion of the mower.
Figure 7. Jackstand Placement
LUBRICATION INFORMATION
Do not let excess grease collect on or around parts,
particularly when operating in sandy areas.
Always wear relatively tight and belted clothing
to avoid entanglement in moving parts. Wear
sturdy, rough-soled work shoes and protective
equipment for eyes, hair, hands, hearing, and head;
and respirator or filter mask where appropriate.
BLOCKING METHOD
Do not work underneath mower unless it is properly
attached to the tractor and blocked securely. When
properly attached, the unit will be anchored to minimize
front to rear movement.
Raise mower completely, set tractor brakes, turn
engine off, remove key, block tractor wheels fron t and
rear, and disconnect mower driveline from tractor.
The only approved blocking devic es for this mo wer ar e
jackstands with a load rating of 1000 poun ds or more .
One jackstand under each corner of the mower (four
total) must be installed befo re working und erneath this
unit.
Figure 8 shows the lubric ation points. Th e accom panying chart gives the fr eq uen cy of l ubri ca tio n in operating
hours, based on normal operating conditions.
Severe or unusual conditions may require more frequent lubrication. S ome refer ence num bers have mor e
than one location; be sure you lubricate all locations.
Use a lithium grease of #2 consistency with a MOLY
(molybdenum disulfide) additive for all locations. Be
sure to clean fittings thoroughly before attaching
grease gun. When a pplied accordin g to the lubrica tion
chart, one good pump of most guns is sufficient.
Use SAE 80W or 90 W gear lube in t he gearbo x. Fill t o
plug on side of gearbox.
Check gearbox daily for evidence of leakage at both
seals and the gasket between the housing and cover. If
leakage is noted, repair imm ediately. There may be a
small amount of lube em itte d f ro m th e v en t pl ug; thi s is
not considered leakage.
Overfilling the ge arbox wi ll caus e the e xcess gear lube
to blow out vent plug and ruin the belt.
14 Owner Service
(Rev. 6/1/2008)
5WPMAN0705 (Rev. 5/9/2008)
Driveshaft Lubrication
Ref
No.DescriptionFrequency
1Front U-Joint8 Hours
2Caster Wheel (Four wheels)8 Hours
3Caster Pivot (Four wheels)8 Hours
4Left Spindle (Access through hole)40 Hours
5Shield Bearings 8 Hours
6Rear U-Joint8 Hours
7Gearbox (Fill to center of horizontal shaft with
SAE 80W or 90W gear lube)
Check Daily
for Leakage
8Right Spindle (Access through hole)40 Hours
9Center Spindle (Access through hole)40 Hours
10Slip Joint 40 Hours
2. Remove front half of driveshaft.
Lubricate the driveshaft slip joint every 40 operating
hours. Failure to maintain proper lubrication could
result in damage to U-joints, gearbox, and drivesha ft.
1. Lower mower to ground.
3. Apply grease all around and along inner shaft.
4. Reassemble driveshaft halves.
5. Raise a nd lower mower several tim es to distribute
grease.
5WPMAN0705 (Rev. 5/9/2008)
Figure 8. Lubrication Points & Chart
Owner Service 15
BELT SERVICE
CAUTION
WARNING
CAUTION
WARNING
Belt Replacement
One of the major causes of belt failure is improper
installation. Before ins talling a new belt, check the following:
1. Check pulley shafts and bearings for wear.
2. Check pulley grooves for cleanliness.
3. Make sure spindles turn freely and without wobble.
If grooves require cle ani ng, moi sten a c lo th wi th a no nflammable, non-toxic deg reasing agent or commercial
detergent and water.
Avoid excessive force during installation. Do not use
tools to pry belt into pulley groov e. Do not roll be lt over
pulleys to install . This can cause hidden dam age and
premature belt failure.
Belt Installation
Refer to Figure 9.
3. Make sure belt is on drive pulley A and route
around idler F.
4. Grasp belt between spindle pulley E, spring-loaded
idler F and spindle pulley D. Pull spring-loaded
idler with belt to obtain enoug h belt length to rout e
it over pulley E. Make sure spring-loaded idler
pivots freely with belt installed.
BLADE SERVICE
Before dismounting power unit or performing
any service or maintenance, follow these steps:
disengage power to equipment, lower the 3-point
hitch and all raised components to the ground,
operate valve levers to release any hydraulic pressure, set parking brake, stop engine, remove key,
and unfasten seat belt.
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.
■ Use care when installing or removing belt from
spring-loaded idler. Springs store energy when
extended and, if released suddenly, can cause personal injury.
Figure 9. Belt Routing
1. Slide belt under drive pull ey A and over idl er arm.
Position belt around drive pulley A.
2. It may be nece ssary to remove front b olts (1) and
swing gearbox stand up to g ain a cces s to pul le y A .
Route belt around pulley B, idler C, and pulley D as
shown.
Frequently check blades. They should be sharp,
free of nicks and cracks, and securely fastened.
1. Inspect blades before ea ch use to determine that
they are mounted securely and are in good condition.
2. Replace any blade that is bent, excessively nicked,
worn, or has any other damage.
3. Small nicks can be ground out when sharpening.
Blade Removal
Do not handle blades with bare hands. Careless
or improper handling may result in serious injury.
1. Remove bolt (1), Figu re 11, which has right han d
threads.
2. Remove washer and blade.
Blade Sharpening
NOTICE
■ When sharpening blades, be sure to balance
them. Unbalanced blades will cause excessive
vibration that can damage blade spindle bearings.
Vibration may also cause structural cracks in
mower housings.
16 Owner Service
(Rev. 6/1/2008)
5WPMAN0705 (Rev. 5/9/2008)
1. Place blade over blade p ilot on the bottom of the
CAUTION
1. 5/8 NF x 2 Cap screw GR5
2. Bell washer, 5/8 x 1-3/4 x .075
DANGER
shaft assembly.
2. Place bell washer (2) over blade and insert blade
bolt (1). Torque blade bolt to 100 lbs-ft.
CHAIN SHIELDING
Figure 10. Blade Balancing
1. Follow original sharpening pattern.
2. Do not sharpen blade to a razor edge, but leave
approximately 1/64" blunt edge.
3. Do not sharpen back side of blade.
4. Sharpen both cutting edges equally to keep blad e
balanced. Balance blade using the me thod shown
in Figure 10.
Blade Installation
Your dealer can supply genuine replacement
blades. Substitute blades may not meet original
equipment specifications and may be dangerous.
NOTICE
■ When installing blad e, the lift of the blade must
be toward the spindle blade housing as shown in
Figure 11. Torque bolt (1) into shaft assembly to
100 lbs-ft.
Figure 11. Blade and Spindle Assembly
Full chain shielding must be installed when
operating in populated areas or other areas where
thrown objects could injure people or damage
property.
• If this machine is not equipped with full chain
shielding, operation must be stopped when anyone comes within 300 feet (92 m).
• This shielding is designed to reduce the risk
of thrown objects. The mower deck and protective devices cannot prevent all objects from
escaping the blade enclosure in ev ery mowing
condition.
and escape, traveling as much as 300 feet (92 m).
Check that chain shielding is in good condition and
replace any damaged chain links.
It is possible for objects to ricochet
CLEANING
After Each Use
●Remove large debris su ch as c l umps of d ir t, gras s ,
crop residue, etc. from machine.
●Inspect machine and replace worn or damaged
parts.
●Replace any safety dec als that are missing or no t
readable.
Periodically or Before Extended Storage
●Clean large debris such as clumps of dirt, grass,
crop residue, etc. from machine.
●Remove the remainder usin g a low- pressure water
spray.
1. Be careful when spraying near scratched or torn
safety decals or near edges of decals as wa ter
spray can peel decal off surface.
2. Be careful when spraying near chipped or
scratched paint as water spray can lift paint.
3. If a pressure washer is used, follow the advic e
of the pressure washer manufacturer.
●Inspect machine and replace worn or damaged
parts.
●Sand down scratches and the edges of areas of
missing paint and coat with spray paint of matching
color (purchase from your dealer).
●Replace any safety dec als that are missing or no t
readable (supplied free by your dealer). See Safety
Decals section for locatio n draw ing .
5WPMAN0705 (Rev. 5/9/2008)
Owner Service 17
TROUBLESHOOTING
MOWING CONDITIONS
PROBLEMPOSSIBLE CAUSESOLUTION
Grass cut higher in center of
swath than at edge
Grass cut lower in center of
swath than at edge
Streaking conditions in swathConditions too wet for mowingAllow grass to dry before mowing.
Height of mower higher at front
than at rear
Loose bladeCheck blade hardware.
Height of mower lower at front
than at rear
Loose bladeCheck blade hardware.
Blades unable to cut that part of
grass pressed down by path of
tractor tires
Adjust mower height and attitude so
that mower rear and front are within
1/2 inch of same height. See
instructions on page 11.
Adjust mower height and attitude so
that mower rear and front are within
1/2 inch of same height. See
instructions on page 11.
Slow ground speed of tractor but keep
engine running at full PTO rpm.
Cutting lower will help. Adjust tractor
tire spacing if possible.
Material discharge s from mow er
unevenly; bunches of material
along swath
Dull bladesSharpen or replace blades.
Loose bladeCheck blade hardware.
Material too high and too much
material
Grass is wetAllow grass to dry before mowing.
Reduce ground speed but maintain
540 rpm at tractor PTO, or make two
passes over material. Raise mower
for the first pass and lower for the
second and cut 90-degrees to first
pass. Raise rear of mower high
enough to permit material discharge,
but not so high that conditions listed
above occur.
Slow ground speed of tractor but keep
engine running at full PTO rpm.
18 Troubleshooting
5WPMAN0705 (Rev. 5/9/2008)
TROUBLE SHOOTING
BELT COND I T IONS
PROBLEMPOSSIBLE CAUSESOLUTION
Belt slippageMower overloading; material too
tall or heavy
Oil on belt from over lubricating Be careful not to over lubricate. Clean
Belt hung up or rubbingCheck belt position in pulleys and
Frayed edges on belt coverBelt is misalignedRe-align belt. Be sure belt does not
Pulley is misalignedInspect to ensure belt is running in
Reduce tractor ground speed but
maintain full PTO rpm. Cut material
twice, one high pass and then mow at
desired height. Cut at 90 degrees to
first pass.
lubricant from belt and pulleys with
clean rag. Replace oil-soaked belt.
idlers. Check belt for free travel in
pulleys. Check under mower and
around blade spindle shaft for wire,
rags, or other foreign material. Clean
all material from under mower.
rub any other part while running.
center of backside idler. Shim idler as
necessary to a l ign.
Belt rolloverPulley is misalignedRe-align.
Damaged beltReplace belt. *
Foreign object in pulley grooveInspect all pulley grooves for rust,
paint, or weld spots and remove.
Worn pulley grooveReplace pulley.
Damaged beltRollover, high shock loads or
installation damaged
Belt breakageHigh shock loads Avoid abusive mowing. Avoid hitting
Belt came off driveCheck pulleys for foreign material in
* Check belt for damage by laying it flat on the floor. A belt that does not lie flat (has humps or twists, indicating broken
or stretched cords) must be replaced.
Replace belt. *
the ground or large obstructions.
grooves. Avoid hitting solid objects or
ground.
5WPMAN0705 (Rev. 5/9/2008)
Troubleshooting 19
DEALER SERVICE
WARNING
CAUTION
1. 3/8 NF x 1 HHCS GR5
2. Cup washer
3. Sheave
4. Spacer
5. Spind le bea ring
6. 3/8 NC Flange lock nut
7. 1/4 Tapered grease fitting
8. Spind le hou sing
9. 3/8 NC x 1-1/2 HHCS GR5
10. Spacer
11. Square key
12. Shaft assembly
13. Blade kit
14. Cup washer
15. 5/8 NF x 2 HHCS GR5
CD6308
The information in this section is written for de aler service personnel. The repair described here requires
special skills and tools. If your shop is not properly
equipped or your mec han ic s a r e not pr ope rly trained in
this type of repair, you may be time and money ahead
to replace complete assemblies.
Before working underneath, read manual
instructions, securely block up, and check stability.
Secure blocking prevents equipment from dropping due to hydraulic leak down, hydraul ic system
failure, or mechanical component failure.
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.
Always wear relatively tight and belted clothing
to avoid entanglement in moving parts. Wear
sturdy, rough-soled work shoes and protective
equipment for eyes, hair, hands, hearing, and head;
and respirator or filter mask where appropriate.
BLOCKING METHOD
See instructions on page 14.
BLADE SPINDLE REPAIR
Spindle repair requires special sk ills and tools. If your
shop is not properly equi pped or your mechanics are
not trained in this type of repair, you may be time and
money ahead to use a new spindle assembly.
For reference, the grease fitting is in the top of the spindle shaft.
®
Permatex
recommended as a sealant.
Remove Spindle
1. Remove belt shields from deck.
2. Remove belt.
3. Remove blade from spindle assembly.
4. Remove nuts (6) and bolts (9) that secure spindleto mower. (See Figure 12.) Figure 12. Blade Spindle Assembly
20 Dealer Service
3D Aviation Form-A-Gasket or equivalent is
5WPMAN0705 (Rev. 5/9/2008)
Disassemble Spindle
1. Seal
2. Pipe or tube
3. Seal seat
4. Casting
Pipe or tube must
press at outer edge of seal
CD1092
Incorrect
Installation
Seal Replacement
1. Remove bolt (1) and wash er (2) from th e top of the
spindle.
2. Remove sheave (3) and spacer (4).
NOTE: A wheel puller may be needed if sheave
can not be removed by hand. Retain key (11).
3. Slide shaft assembly (12), lower bearing (5), and
long spacer (10) out the bottom of s pindle hous ing
(8).
4. Remove upper bear ing (5) and space r (4) fro m top
of spindle housing.
5. Inspect parts and replace as needed.
Assemble Spindle
1. Slide lower bearing (5) over shaft assembly (12)
with seal down.
2. Slide long spacer (10) on shaft assembly.
3. Insert shaft assembly with bearing and spacer int o
spindle housing from the bottom.
4. Install upper bearing (5) over shaft with the seal
facing up.
5. Install spacer (4) and sheave (3) over shaft.
6. Align keyways in shaft and sheave and inse rt key
(11).
7. Install washer (2), an d bolt (1). Torque bolt to 35
lbs-ft.
8. Rotate sheave and check for free movement.
Recommended sealant for gearbox repair is Perma-
®
Aviation 3D Form-A-Gasket or equivalent.
tex
Leakage can occur at th e vert ical or horiz ontal gask ets
and shaft seals.
Leakage at the horizontal gasket or seal can be
repaired without removing the gearbox from the mower.
Seal Installation
NOTE: Proper seal installation is important. An improp-
erly installed seal will leak.
1. Clean area in housing where seal outer diameter
(OD) seats. Apply a thin coat of Permatex.
2. Inspect area of shaft where seal seats. Remove
any burrs or nicks with an emery cloth.
3. Lubricate gear shaft and seal lips.
4. Place s eal squarely on housing, spring-loaded lip
toward housing. Select a piece of pipe or tubing
with an OD that will sit on the outside edge of the
seal but will clear th e housing. Tubing with an OD
that is too small will bow seal cage and ruin seal.
5. Carefully press seal into housing, avoiding
distortion to the metal seal cage.
9. Lubricate spindle.
GEARBOX REPAIR
Read this entire section before starting any repair.
Many steps are dependent on each other.
Fill gearbox with SAE 80W or 90W gear lube until it
runs out the side level plug.
Repair to this gearbox is limi ted to replacing bearin gs,
seals, and gaskets. Replacing gears, shafts, and a
housing is not cost e ffective. It is more economical to
purchase a complete gearbox if repair to anything other
than replacement of bearings, seals or gaskets is
required.
Inspect gearbox for leakage and bad bearings.
Leakage is a very serious problem and must be cor-
rected immediately.
Bearing failure is indicated by excessive noise and side
to side or end play in gear shafts.
5WPMAN0705 (Rev. 5/9/2008)
2
3
1
4
CD1094
Figure 13. Seal Installation
Dealer Service 21
1. Seal
2. Snap ring
3. Shim 55.4 mm x 61.7 mm
4. Ball bearing
5. Input shaft
6. Key 8 mm x 10 mm x 30
mm
7. Input gear
8. Ball bearing
9. Shim 60.3 mm x 71.7 mm
10. Snap ring
11. Oil cap
12. Output shaft & gear
13. Ball bearing
14. Shim kit
15. Snap ring
16. Spacer
17. Shim 60.3 mm x 71.7 mm
18. Snap ring
19. Seal
20. Washer, 1.58 x 3.13 x .04
21. Snap ring
22. Washer 25 mm x 44 mm x
4 mm
23. Castle nut M24 x 2
24. 3/16 x 2 Cotter pin
25. 3/8 Solid plug
26. M10 x 22 mm Hex head
screw
27. Vent plug
28. Cover
29. Ball bearing
CD6306
22 Dealer Service
Figure 15. Gearbox Stand Assembly
Figure 14. Gearbox Assembly
Vertical Shaft Seal Replacement (Figure 15)
1. Disconnect and remove the driveline from the
gearbox.
2. Remov e vent plug (15) and siphon gear lube from
housing through this opening.
3. Remove gearbox stand from mower deck.
4. Remove gearbox and pulley from stand (2).
5. Remove ve rtical shaft seal. Rep lace with new seal
(see Seal Replacement, page 21).
Vertical seal should be recessed in housin g. Hori-
zontal seal should be pres sed flush with outside of
housing.
NOTE: Distortion to seal cage or damage to seal
lip will cause seal to leak.
6. Fill gearbox with SAE 80W or 90W gear lube until it
runs out the level plug.
7. Assemble gearbox and pulley to gearbox stand.
Attach gearbox stand to mower deck.
(Rev. 6/1/2008)
5WPMAN0705 (Rev. 5/9/2008)
Horizontal Shaft Seal Replacement
1. Disconnect and remove the driveline from the
gearbox.
2. Remove vent plug (27), Figure 14, and siphon gear
lube from housing through this opening.
3. If the leak occurred at either end of horizontal shaft,
remove oil cap (11) and/or oil seal (1). Replace
with new one (see Seal Replacement, page 21).
4. Fill gearbox with SAE 80W or 90W gear lube until it
runs out the level plug.
Remove Gearbox from Mower
12. Inspect gears for broken teeth and wear. Some
wear is normal and will show on laded side. Forged
gear surfaces are rough when new. Check that
wear pattern is smooth.
13. Inspect vertical and horizontal shafts for grooves,
nicks, or bumps in the areas whe re the seals s eat.
Resurface any damage with emery cloth.
14. Inspect housing and caps for cracks or other
damage.
Reassemble Gearbox
(GM3060, GM3072 shown, GM3054 similiar)
Refer to Figure 14.
1. Disconnect an d remove the r ear driveline fro m the
gearbox.
2. Remove vent plug (15), Figure 15, and siphon gear
lube from housing through this opening.
3. Remove gearbox stand (2) from mower deck by
removing four hex screws (8).
4. Remove four cap screws (14) and washers (13)
and remove shield (12) from gearbox.
5. Remove castle nut (6) and hardware from output
shaft of gearbox.
6. Remove sheave (3) from gearbox.
7. Remove four bolts (10) that attach gearbox to
gearbox stand and remove gearbox.
Disassemble Gearbox
1. Remove top cov er (28), Figure 14, from housing .
Turn gearbox upside down and pour out r emain ing
gear oil from gearbox.
2. Remove oil cap (11) (to be replaced).
3. Remove snap ring (10) and shim (9) from input
shaft (5).
4. Support ge arbox in hand pr ess and push on input
shaft (5) to remove bearing (8).
5. Remove gear (7) from inside housing.
6. Remove oil seal (1) from front of housing (to be
replaced).
7. Remove snap ring (2) and shim (3) from front of
housing.
8. Remove input bearing (4) by using a punch and
hammer from outside of housing.
9. Support housing in vise in a horizontal position.
10. The castle nut (23) and cotter pin (24) ar e already
removed with the drive she ave. Remove the snap
ring (18), washer (20), and seal (19).
11. Remove outp ut shaft (12) and bearing s by using a
punch and hammer and tap on top to drive down.
NOTE: Repair to this gearbox is limited to replacing
bearings, seals, and gask ets. Replacing gears, shafts,
and a housing is not cost effective. Purcha sing a complete gearbox is more economical.
1. Clean housing, paying special attention to areas
where seals will be installed.
2. Wash housing and component thoroughly. Select a
clean area for gearbox assembly. Replace all seals
and bearings. All parts must be clean and lightly
oiled before reassembling.
GM3060 & GM3072
3. Install upper output bearing (13), shims (14), and
snap ring (15) on output sh aft (12). Us e ne w shims
equal to the thickness of the original shims.
4. Press output shaft asse mbly into h ousing from the
bottom opening.
5. Install spacer (16), lower output bearing (13),
shims (17), and snap ring (18) in bottom of
housing.
GM3054
1. Install shi ms (14), uppe r outpu t bearing (8), spacer
(16), lower output bearing (8), shims (17), and
snap ring (15) on output shaft. Use new shims
equal to the thickness of the original shims.
2. Press output shaft asse mbly into h ousing from the
bottom opening.
3. Install snap ring (18) in bottom of housing.
All Models
4. Apply grease to lower seal lips (19), and press seal
over output shaft (5), using a round tube of the
correct diameter. Be sure not to damage the seal
lip. Press in housing so that the seal is recessed.
6. Install snap ring (21) and position it together with
seal (19) by pressing it int o posit ion. Verify that the
snap ring is seated properly.
5WPMAN0705 (Rev. 5/9/2008)
Dealer Service 23
7. Press bearin g (8) into the housing, us ing a round
1. Shim
2. Idle r arm
3. Idle r pul ley
4. Drive sheave
5. Castle nut &
cotter pin
6. Gearbox stand
1. Yoke
2. Cup and bearings
3. Snap ring
4. Journal cross
tube of the correct diameter and a hand press.
Secure with shims (9) and snap ring (10).
8. Install key (6) on input shaft (5).
9. Place gear (7) through top of housing and align the
two gears so they match.
10. While holding gear (7) in place, slide input shaft (5)
through the gear and bearing (8).
11. Slide spacer (29) (GM3054 on ly) and bearing (4)
over input shaft (5) and press in to ho us ing , us ing a
round tube of the correct diameter and a hand
press.
12. Slide shim (3) over input shaft and secure with
snap ring (2).
13. Check input shaft end float by moving the input
shaft by hand. If the end float is more than .012",
insert shim (9) between the rear bearing (8) and
snap ring (10).
14. Check that gear backlash is between .006" and
.016". You should not have to adjust the backlash.
for proper belt life. Add or sub tract shim washers
under idler pulley to align with drive pulley.
2. Tighten gear stand hardware.
3. Fill gearbox half full with SAE 80W or 90W gear
lube.
4. Check level after waiting five minutes to permit
lube to work through bearings. Add lube, if
necessary, until gearbox is half full.
5. Replace driveline shield. Attach driveline to
gearbox.
15. Press in inpu t seal (1), using a round tube o f the
correct diameter. Be careful not to damage the seal
lip.
16. Press oil ca p (11) on to the r ear cover of housing,
using a round tube of the correct diameter.
17. Check the gearbox hou sing for leaks by plugging
all holes except one. Apply 4 psi compressed air
and immerse the gearbox in water to verify that
there are no leaks.
18. Remove the gea rbox from water and dry off with
compressed air. Add SAE 80W or 90W EP oi l until
it runs out of the side level hole. Tighten all plugs.
Install Gearbox
NOTE: Gearbox is heavy: do not attempt to move with-
out mechanical assistance.
1. Set gearbox on gearbox stand and fasten with
bolts and nuts. Torque bolts to 175 lbs-ft.
2. Attach drive she ave to output shaft. Secure usin g
castle nut and hardware previously removed.
3. Attach gearbox stand to mower using four hex
screws.
Install Drive Sheave
1. When gear stand i s installed on mower, dimension
A (from the top of the mower deck to the center line
of the drive pulley) must be 2-1/16" (±1/32"). This is
a critical dimensio n and m ust be ca refully adjus ted
24 Dealer Service
Figure 16. Drive Sheave Installation
UNIVERSAL JOINT REPAIR
Figure 17 . U-Joint Exploded View
5WPMAN0705 (Rev. 5/9/2008)
U-Joint Disassembly
1. Remove external snap rings from yokes in four
locations as shown in Figure 18.
Figure 18
2. With snap rings removed, support drive in vise,
hold yoke in hand and tap on yoke to drive c up up
out of yoke. See Figure 19.
Figure 19
3. Clamp cup in vise as shown in Figure 2 0 and tap
on yoke to completely remove cup from yoke.
Repeat Step 2 and Step 3 for opposite cup.
Figure 20
4. Place universal cross in vise as shown in Figure 21
and tap on yoke to remove cup. Repeat Step 3 for
final removal. Drive remaining cup ou t with a drift
and hammer.
5WPMAN0705 (Rev. 5/9/2008)
Figure 21
Dealer Service 25
U-Joint Assembly
1. Place seals securely on bearing cups. Insert cup
into yoke from outside and press in with hand
pressure as far as possible. Insert journal cross
into bearing cup with grease fitting away from
shaft. Be careful not to disturb needle bearings.
Insert another bearing cup directly across from first
cup and press in as far as possible with hand
pressure.
2. Trap cups in vise and apply pressure. Be sure
journal cross is started into bearings and continue
pressure with vise, squeezing in as far as possible.
Tapping the yoke will help.
3. Seat cups by placing a drift or socket (slightly
smaller than the cup) on cup and rap with a
hammer. See Figure 22. Install snap ring and
repeat on opposite cup.
4. Repeat Step 1 & Step 2 to install remaining cups in
remaining yoke.
5. Move both yokes in all directions to check for free
movement. If movement is restricted, rap on yokes
sharply with a hammer to relieve any tension.
Repeat until both yokes move in all directions
without restriction.
Figure 22
26 Dealer Service
5WPMAN0705 (Rev. 5/9/2008)
ASSEMBLY INSTRUCTIONS
WARNING
CAUTION
CD6497
13. A-Frame arms
14. Rear offset link arms
15. Top link U-bracket
16. Sleeve 1-1/4 x 1-3/4 x 2-3/4
25. Sleeve 5/8 x 1 x 7/16
51. 1/2 NC Flanged lock nut
52. 5/8 NC Flanged lock nut
53. 1/2 x 5 HHCS GR5
55. 1/2 NC x 1-1/4 HHCS GR5
56. 5/8 NC x 2-1/2 HHCS GR5
DEALER SET-UP INSTRUCTIONS
Assembly of this mower is the responsibility of the
dealer. It should be delivered to the owner completely
assembled, lubric ated, and adj usted for nor mal cuttin g
conditions.
Complete Dealer Check Lists on page 31 when you
have completed the assembly.
The mower is ship ped partially assembled. Assembly
will be easier if components are aligned and loosely
assembled before tightening hardware. Recommended
torque values for hardware are located on page 42.
Select a suitable worki ng area. Open parts boxes and
lay out parts and hardware to make location easy.
Refer to illustrations, accompanying text, parts lists and
exploded view drawings.
Before working underneath, carefully read Operator’s Manual instructions, disconnect driveline,
raise mower, securely block up all cor ners with
jackstands, and check stability. Secure blocking
prevents equipment from dropping due to hydraulic leak down, hydraulic system failures, or
mechanical component failures.
Install A-Frame Arms
1. Loosen lock nuts (52) at lower hitch point and
install A-frame arms (13) as shown.
2. Tighten nut securely.
3. Repeat for opposite side.
Always wear relatively tight and belted clothing
to avoid entanglement in moving parts. Wear
sturdy, rough-soled work shoes and protective
equipment for eyes, hair, hands, hearing, and head;
and respirator or filter mask where appropriate.
Uncrate Mower
1. Remove sides and top of mower shipping crate.
2. Remove lag screws and brackets that secure
mower to crate base.
3. Remove driveshaft wired to mower deck.
5WPMAN0705 (Rev. 5/9/2008)
Figure 23. A-Frame Arms Installed
Assembly 27
Install Rear Offset Link Arms
14. Rear offset link arm
51. Nut, flanged lock 1/2 NC
55. 1/2 NC x 1-1/4 HHCS GR5
CD6497A-1
13. A-Frame arms
14. Rear offset link arms
15. Link, U-bracket
16. Sleeve, .62 x .84 x 2.75
51. Nut,flanged lock 1/2 NC
53. 1/2 NC x 5 HHCS GR5
CD6497-2
15
3
14
CM768
3. Shield, chain plate
14. Bolt, carriage 3/8 NC x 1
15. Nut, flanged lock 3/8 NC
Install Driveshaft
1. Loosen nut (51) and bolt (55) at rear fr ame lug and
attach rear offset link arm (14) as shown in Figure
24. (Do not use wheel tube bolt.)
2. Repeat for opposite side.
3. Do not tighten at this time.
1. Slide QD yoke of driveshaft assembly onto
gearbox shaft. Make sure QD yoke pin is seated
securely in groove of gearbox shaft.
2. Attach shield anti-rotation chain to drive shield.
Fill Gearbox
1. Make sure vent plug hole is clear. Fill gearbox half-
full with high quality gear oil that has a viscosity
index of 80W or 90W and an API service rating o f
GL-4 or GL-5.
2. Fill gearbox until oil runs out the side plug on
gearbox.
3. Pour in one pint of gear lub e, wait five mi nute s an d
add additional gear lube until it just comes out o f
side hole.
4. Allo w an add iti on al fiv e m in utes fo r the lub e to flo w
through bearings, then check to make sure oil level
is at bottom of side hole. Re place side pl ug. Install
vent plug.
Figure 24. Right Rear Offset Link Installed
Install Top Link
1. Insert cap scr ew (54) through A-frame arms (13),
U-bracket (15), sleeve (16) and rear offset link
arms (14) and tighten securely with nut (51).
2. Tighten hardware on rear frame lug and offset link.
NOTICE
■ Gearbox is not filled at the factory. Prior to deliv-
ery, make sure ea ch gearbox is filled half-full with
80W or 90W API GL-4 or GL-5 gear lube.
Install Chain Shielding (Optional)
28 Assembly
Figure 25. Top Link Assembled
Figure 26. Chain Shielding Installed
(GM3060 & GM3072 Only)
5WPMAN0705 (Rev. 5/9/2008)
Figure 27. Chain Shield Installed (GM3054 Only)
1. 1/4 Pin
2. 3-Link 1/4 proof chain
3. Shield, chain plate
4. Sleeve 1/2 x 3/4 x 1/2
5. 3/8 NC x 1-1/4 Carriage bolt
DANGER
1. Offset link, .38 x 2 x 25.88 (A-frame bars)
2. 38" Long chain
3. Sleeve, .91 x 1.44 x 1.25
4. 1/2 NC x 6 Cap screw
5. 1/2 Flat washer
6. Sleeve, .5 x .75 x 3.38
7. 1/2 NC Flange lock nut
8. Sleeve, .875 x 1.125 x .593 HT
9. 7/8 Flat washer
10. Sleeve, .81 x 1.25 x 1.81
NOTE: This kit allows mower to fit only Cat. 1 standard
ASAE quick hitch.
Full chain shielding must be installed when
operating in populated areas or other areas where
thrown objects could injure peop le or damage
property.
• If this machine is not equipped with full chain
shielding, operation must be stopped when anyone comes within 300 feet (92 m).
• This shielding is designed to reduce the risk
of thrown objects. The mower deck and protective devices cannot prevent all objects from
escaping the blade enclosure in every mowin g
condition.
and escape, traveling as much as 300 feet (92 m).
1. Install chain shielding plate (3) to rear mower frame
as shown.
2. Secure with carriage bolts (14) and flanged lock
nuts (15).
3. Insert carriage bolts from bottom upward as
shown.
1. Attach offset link (1) to mounting pins, using 7/8"
sleeve (8) and flat washer (9). Do not tighten
hardware.
2. Attach up per end of offset link to pivot link, using
flat washer (5), sleeves (6 & 10), flange lock nut
(7), and 1/2" x 4-3/4" cap screw.
3. Remove rear offset links and replace with chains
(2).
4. Attach chain to top of A-frame as shown, using cap
screw (4), flat washer (5) , and nu t. Attach op posite
end of chain (2) to rear mower frame as shown.
5. Cut chain to le ngth (GM3060 - 40", GM3072 45").
Vary length slightly as desired. Twist chain to make
finite adjustments in length until unit lifts level.
NOTE: Do not bottom out the drive on front of
deck.
6. Install sl eeve (3) on mountin g pins and retain wit h
klik pin.
Assembly 29
Install Front Roller (Optional)
CD6310
1. Roller
2. Roller bracket
3. Spacer
4. Bearing
5. 1/2 Flat washer SAE
6. 1/2 NC x 9 HHCS GR5
7. 1/2 NC Flanged locknut
8. 3/8 NC x 1-1/4 Carriage bolt
9. 3/8 NC Flanged locknut
1. Insert four carriage bolts (8) through the front
mower frame from inside out.
2. Place roller bracket (2) over bolts; then install
flange lock nuts (9) on bolts and tighten.
3. Place front rol ler (1), sleeve (3), bearin gs (4), and
washers (5) in roller bracket as shown in Figure 29.
4. Insert cap screw (3) through bracket and roller.
5. Secure with flanged lock nut (2). Do not
overtighten, roller must spin freely.
NOTES
Figure 29. Front Roller Installation
30 Assembly
5WPMAN0705 (Rev. 5/9/2008)
DEALER CHECK LISTS
DEALER PRE-DELIVERY CHECK LIST
(DEALER’S RESPONSIBILITY)
Inspect the equipment thoroughly after assembly to
ensure it is se t up properly befo re delivering it to the
customer.
The following check lists are a reminde r of points to
inspect. Check off each item as it is found satisfactory
or after proper adjustment is made.
___ Check tha t all safety de cals are insta lled and in
good condition. Replace if damaged.
___ Check that shields and guards are properly
installed and in g ood c ondition. Rep lace if da maged.
DEALER DELIVERY CHECK LIST
(DEALER’S RESPONSIBILITY)
___ Show cu stomer how to make adj ustments and
select proper PTO speed.
___ Instruct customer how to lubricate and explain
importance of lubrication.
___ Point out the s afety decals. Ex plain their mean-
ing and the need to k eep them in place and in
good condition. Emphasize the increased safety
hazards when instructions are not followed.
___ Present Operator's Manual and request that
customer and all o perators read it before o perating equipment. Point out the manual safety
rules, explain their meanings and emphasize
the increased safety hazards that exist when
safety rules are not followed.
___ Show customer how to make sure driveline is
properly installed and that spring-activated locking pin or collar slides freely and is seated in
groove on tractor PTO shaft.
___ Show cust omer the safe, proper procedures to
be used when mounting, dismo unting, and storing equipment.
___ Check all bolts to be sure they are properly
torqued.
___ Check that all cotter pins and safety pins are
properly installed. Replace if damaged.
___ Check and greas e all lubric ation points as iden-
tified in “lubrication information” on page 14.
___ Gearboxe s are not filled at the factory. Prior to
delivery, fill as specified in the "S ervice , lubrication information" o n page 14 and check to see
that there are no leaking seals.
___ Check that blades have been properly installed.
___ Explain to c ustomer the potential crus hing haz-
ards of going underneath raised equipment.
Instruct that befor e go ing u nderneath to d isc onnect the driveli ne, securely bl ock up all c orners
with jackstands and to follow all instructions in
the "Service, blocking methods" section of the
Operator’s Manual. Explain that blocking up
prevents equipment dropping from hydraulic
leak down, hydraulic system failures, or
mechanical component failures.
___ For mounted units, add wheel weights, ballast in
front tires, and/or front tractor weight to enhance
front end stability. A minimum 25% of tractor
and equipment gross weight must be on front
tractor wheels. When adding weight to attain
25% of tractor and equipment weight on front
tractor wheels, you mus t not exceed the ROPS
weight certification. Weigh the tractor and
equipment. Do not estimate!
___ Make customer aware of optional equipment
available so that customer can make proper
choices as required.
___ Point out all guards and shields. Explain their
importance and the safety hazards that exist
when not kept in place and in good condition.
1---------------1Main frame (not sold separately)
25WP10080445W P10 080 445WP 10080441 Idler arm
35WP10080225WP10080695WP1008166 1 Right shield
45WP10080235WP10080695WP1008166 1 Left shield
55WP10080245WP10081675WP1008167 1 Center shield
11---------------3 Spindle (see page 39)
125WP10066495WP10066485WP1006648 1Gearbox (see page 36)
135WP195795WP195795WP195792 A-frame arm
145WP190565WP553315WP195782 Rear offset link arm
155WP196055WP196055WP19605 1 Top lin k U-b rac ke t
165WP648145WP648145WP64814 1 Sleeve 1-1/4 x 1-3/4 x 2-3/4
175WP10080975WP10080975WP1008097 4Wheel, 10" pneumatic (includes items 19) -or-
175WP10080965WP10080965WP1008096 4Wheel, 10" solid (includes items 19)
185WP197495WP197495WP19749 4 Sleeve 1/2 x 3/4 x 4-1/16 (pneumatic tire) -or-
185WP293685WP293685WP29368 4 Sleeve 1/2 x 3/4 x 3-3/8 (solid tire)
195WP249935WP249935WP24993 8 Ball bearing (pneumatic tire) -or-
195WP655785WP655785WP65578 8 Flanged bushing (solid tire)
205WP651305WP651305WP65130 12 1" Height spacer
215WP651295WP651295WP65129 4 1/2" Height spacer
225WP275425WP275425WP27542 4 7/16 Klik pin
235WP20409---------- 2Clevis pin 7/8 x 3 -or-
23-----5WP336615WP33661 2Pin, Cat. 1 w/lockwasher & nut
24-----5WP17915WP17912 Sleeve 5/8 x 1 x 9/16
255WP4845WP4845WP484 3Sleeve 5/8 x 1 x 7/16
265WP206445WP206445WP18879 1 Belt
275WP672835WP672835WP67283 2 5" Idler
285WP672845WP672845WP67284 1 Shoulder sleeve
295WP671315WP671315WP67131 1 Spring
305WP10020485WP10020485WP1002048 1Shield
315WP10209035WP10095085WP1009508 1Driveline
32-----5WP10081135WP1008113 1Sleeve 1-1/4 x 1-3/4 x 3/4
335WP10080205WP10080205WP1008020 1Manual tube holder
345WP10046565WP10046565WP1004656 1Manual tube - PVC
355WP10046575WP10046575WP1004657 2Caplug
365WP10081965WP10081965WP1008196 1Complete decal set
REFPART REFDESCRIPTION
50-----*1/2 NC x 5-1/2 HHCS GR5 (pneu-
matic tire) -or-
50-----*1/2 NC x 5 HHCS GR5 (solid tire)
515WP119001/2 NC Flanged locknut
525WP190255/8 NC Flanged locknut
53-----*1/2 NC x 5 HHCS GR5
54-----*5/8 Standard flat washer
55-----*1/2 NC x 1-1/4 HHCS GR5
56-----*5/8 NC x 2-1/2 HHCS GR5
575WP190245/8 NC x 1-3/4 Hex head flanged cap
screw GR5
58-----*1/2 NC x 3 HHCS GR5
59-----*1/4 - 28 Grease fitting
60-----*1/2 Standard flat washer
5WPMAN0705 (Rev. 5/9/2008)
REFPART REFDESCRIPTION
62 5WP100801
1
63-----*3/16 Safety pin
655WP39254M8 x 1.25 x 16 mm Hex head screw
66-----*5/16 Standard flat washer
675WP621533/8 NC x 1 Hex flange serrated
68-----*1/4 x 1/4 x 1 Key
695WP2089325 x 44 x 4 mm Flat washer
705WP51946M24 x 2 Hex castle nut
71-----*3/16 x 2 Cotter pin
725WP52893PTO Hanger bracket
73-----*1/2 NC x 1-3/4 HHCS GR5
3/8 NC Square nut w/retainer
*Standard Hardware, Obtain Locally
Parts 35
GM3054, GM3060 & GM3072 GEARBOX ASSEMBLY
REF
REFGM3054
PARTQTY
REFGM3060
/ GM3072
PARTQTYDESCRIPTION
A 5WP10066495WP1006648Complete gearbox
15WP39275 15WP39275 1 Seal
2 5WP1007861 1 5WP1007861 1 Snap ring
3 5WP1007865 1 5WP1007865 1 Shim kit
45WP51850 15WP51850 1 Ball bearing
5NSS 1NSS 1 Input shaft
65WP20894 15WP20894 1 Key 8 x 10 x 30 mm
7NSS 1NSS 1 Input gear
85WP20890 45WP20890 1 Ball bearing
9 5WP1007864 1 5WP1007864 1 Shim kit
A 5WD1005400 1 Complete quick hitch kit
1 5WP1003692 2 Link, offset .38 x 2.0 x 15
2 5WP1005401 2 Chain 3/8 proof coil 38 link
35WP38214 2 Sleeve, .91 x 1.44 x 1.25
45WP13563 1 Screw, HHCS 1/2 NC x 6 GR5
5-----* 6 Washer, flat 1/2 ZP
65WP29368 1 Sleeve, .50 x .75 x 3.38
75WP11900 1 Nut, flange lock 1/2 NC
85WP29281 2 Sleeve, 7/8 x 1-1/8 x 19/32 HT
9-----* 2 Washer, flat 7/8
10 5WP1003614 1 Sleeve, .81 x 1.25 x 1.81
* Standard Hardware, Obtain Locally
GM3060 & GM3072 QUICK HITCH KIT (OPTIONAL)
(Rev. 10/18/2012)
5WPMAN0705 (Rev. 5/9/2008)
Parts 41
BOLT TORQUE CHART
A
SAE SERIES
TORQUE
CHART
SAE Bolt Head
Identification
SAE Grade 2
(No Dashes)
SAE Grade 5
(3 Radial Dashes)
SAE Grade 8
(6 Radial Dashes)
METRIC SERIES
TORQUE
CHART
Metric Bolt Head
Identification
8.8
Metric
Grade 10.9
10.9
Metric
Grade 8.8
A
A
Typical Washer
Installations
Lock Wash er
Flat Washer
8/9/00
Bolt
Always tighten hardware to these values unless a different torque value or tightening procedure is listed for a specific
application.
Fasteners must always be replaced with the same grade as specified in the manual parts list.
Always use the proper tool for tightening hardware: SAE for SAE hardware and Metric for metric hardware.
Make sure fastener threads are clean and you start thread engagement properly.
All torque values are given to specifications used on hardware defined by SAE J1701 MAR 99 & J1701M JUL 96.
6 x 1.010 mm86118861186 x 1.0
8 x 1.2513 mm20152720211629228 x 1.0
10 x 1.516 mm392954404130574210 x 1.25
12 x 1.7518 mm6850947075551037612 x 1.25
14 x 2.021 mm109801511111188716312014 x 1.5
16 x 2.024 mm16912523417318113325018416 x 1.5
18 x 2.527 mm23417232323926319436326818 x 1.5
20 x 2.530 mm33024445733736727050737420 x 1.5
22 x 2.534 mm45133262346049536568450522 x 1.5
24 x 3.036 mm57142179058362345986163524 x 2.0
30 x 3.046 mm11758671626119912589281740128330 x 2.0
Wrench
Size
Wrench
Size
Metric 8.8Metric 10.9Metric 8.8Metric 10.9
N-mlbs-ftN-mlbs-ftN-mlbs-ftN-mlbs-ft
SAE 2SAE 5SAE 8
lbs-ftN-mlbs-ftN-mlbs-ftN-m
Coarse ThreadFine Thread
Marking on HeadMarking on Head
MARKING ON HEAD
Diameter &
Thread Pitch
(Millimeters)
42 Appendix
Bolt Torque & Size Charts (Rev. 3/28/2007)
BOLT SIZE CHART
NOTE: Chart shows bolt thread sizes and corresponding head (wrench) sizes for standard SAE and metric bolts.
SAE Bolt Thread Sizes
5/163/81/25/83/47/8
IN17
2
34 56
MM255075100125150175
Metric Bolt Thread Sizes
8MM18MM14MM12MM10MM16MM
ABBREVIATIONS
AG ..............................................................Agriculture
ASABE.................... American Society of Agricultural &
Biological Engineers (formerly ASAE)
ASAE.......American Society of Agricultural Engineers
ATF ............................... A utomatic Transmission Fluid
BSPP.............................British Standard Pipe Parallel
BSPTM ................British Standard Pipe Taper ed Male