John Deere GM1060, GM1072, GM1084 User Manual

OPERATOR’S MANUAL

GM1060
GM1072

GM1084

REAR DISCHARGE

GROOMING MOWERS

5WPMAN0511 (Rev. 10/18/2012)

TO THE DEALER:

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.

2 Introduction

Frontier (Rev. 12/5/2011)

TABLE OF CONTENTS

INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SAFETY RULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

SAFETY DECALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

OWNER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

DEALER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

DEALER CHECK LISTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

PARTS INDEX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

BOLT TORQUE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

BOLT SIZE CHART & ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 45

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

!

LEA EL INSTRUCTIVO!

Si no lee Ingles, pida ayuda a

alguien que si lo lea para que le

traduzca las medidas de seguridad.

5WPMAN0511 (Rev. 2/10/2009)

Introduction 3

SPECIFICATIONS

WARNING

GM1060 GM1072 GM1084

3-Point Hitch Category 1 Category 1 Category 1
Cutting Width 60" 72" 84"
Cutting Height Range 1" - 5-1/2" 1" - 5-1/2" 1" - 4-1/4"
Operating Weight with

Chain Shielding 653 lbs 719 lbs 830 lbs
Blade Speed (feet per minute) 18,100 18,000 17,900
Blade Speed (RPM) 3,295 2,748 2,329
Blade Spindles 3 3 3
Number of Blades 3 3 3
Universal Drive Series ASAE Cat. 3 ASAE Cat. 3 ASAE Cat. 3
Caster Wheels 3.25 x 10 3.25 x 10 4.00 x 10
Tractor PTO Speed RPM 540 540 540
Recommended Maximum

Tractor Horsepower 60 60 60
Mower Frame Thickness 8 GA 8 GA 8 GA
Implement Code for

Tractor Ballast 37 43 53

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

5WPMAN0511 (Rev. 2/10/2009)

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 t he operation , transport, maintenanc e
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 instructe d in and be capable
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.

the pamphlet that accompanies the driveline.
Replace if damaged or broken. Check that driveline
guards rotate freely on drive line 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 system 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, front tractor wheels could raise up result­ing in loss of steering. The weight may be attained
with front wheel weights, ballast in tires or front
tractor weights. Weigh the tractor and equipment.
Do not estimate.

OPERATION

PREPARATION

 Check that all hardware is properly installed.
Always tighten to torque chart specification s
unless instructed otherwise in this manual.

 Always wear relatively tight and belted clothing
to avoid getting caught 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.

 Make sure driveline guard tether chains are
attached to the tractor and equipment as shown in

Frontier GM1060 RD SR (2/14/2006)

 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).

 Inspect and clear area of stones, branches, or
other hard objects that might be thrown, causing
injury or damage.

It is possible for objects to ricochet

(Safety Rules continued on next page)

Safety 5

(Safety Rules continued from previous page)

SAFETY RULES

ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

 Never direct discharge toward people, animals,
or property.

 Do not operate or transport on steep slopes.
 Do not operate or transport equipment while

under the influence of alcohol or drugs.

 Keep bystanders away from equipment.
 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.

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, front tractor wheels could raise up result­ing in loss of steering. The weight may be attained
with front wheel wei ghts, ballast in tires or front
tractor weights. Weigh the tractor and equipment.
Do not estimate.

 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 getting caught 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.

 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 movement of control levers
can cause equipment to drop or rotate unexpect­edly and cause severe injury or death. Follow Oper­ator's Manual instructions for working underneath
and blocking requiremen ts or have work d one by a
qualified dealer.

 Frequently check blades. They should be sharp,
free of nicks and cracks, and securely fastened.

(Safety Rules continued on next page)

6 Safety

Frontier GM1060 RD SR (2/14/2006)

(Safety Rules continued from previous page)



SAFETY RULES

ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

 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 securely to ensure equipment is in a safe
condition before putting unit into service.

 Make sure all safety decals are installed.
Replace if damaged. (See S af ety D ecals section for
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-

age area.

Frontier GM1060 RD SR (2/14/2006)

Safety 7

SHIELD MISSING

DO NOT OPERATE

PUT SHIELD ON

DANGER

18867--B

1 - 5WP15503

2 - 5WP18867

3 - Serial Number Plate

11 - 5WP57123 9" Red Rear Reflector

LENEXA, KS , U .S .A .

(Safety Decals continued on next page)

DO NOT EXCEED PTO SPEED OF

540 RPM

PTO speeds higher than 540 RPM can cause

equipment failure and personal injury.

WARNING

18866-D

4 - 5WP18866

BE CAREFUL!

Use a clean, damp cloth to cl ean safety dec als.
Avoid spraying to o close to deca ls whe n using a

pressure washer; high-pressure water can enter
through very small scratches or under edges of
decals causing them to peel or come off.

Replacement safety decals can be ordered free
from your dealer.

SAFETY & INSTRUC TIONAL DECALS

ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

Replace Immediately If Damaged!

DANGER

ROTATING BLADES AND

THROWN OBJECTS

 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.

15503-C

PRODUCT IDENTIFICATION NUMBER

LENEXA, KS, U.S.A.

8 Safety

5WPMAN0511 (Rev. 5/9/2 008 )

GUARD MISSING.

DO NOT OPERATE.

DANGER

33347E

DANGER

DANGER

GUARD MISSING.

DO NOT OPERATE.

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
RESUL T IN SERIOUS INJURY OR DEATH.

WARNING

18865--C

If shaft connection is visible, shield
is missing. Replace shield before
operating equipment.

DANGNGERER

1004114

7 - 5WP18865

8 - 5WP1004114

9 - 5WP33347

5 - 5WP18864

6 - 5WP1002423

10 - 5WP1003751

(Safety Decals continued from previous page)

SAFETY & INSTRUCTIONAL DECALS

ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

Replace Immediately If Damaged!

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

18864-C

WARNING

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.

FAILURE TO FOLLOW THESE

INSTRUCTIONS COULD RESULT IN

SERIOUS INJURY OR DEATH.

1003751-A

WARNING

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.

FAILURE TO FOLLOW THESE INSTRUCTIONS

CAN RESULT IN INJURY OR DEATH.

5WPMAN0511 (Rev. 5/9/2008)

1002423-B

Safety 9

OPERATION

DANGER

WARNING

CAUTION

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 rule s and safety decals on page 5 t o
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.

 Full chain shielding must be installed when
operating in populated areas or other areas where
thrown objects could injure peop le or damage
property.

 Always wear relatively tight and belted clothing
to avoid getting caught 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

 A minimum 20% of tractor and equipment
weight must be on the tractor front wheels when
attachments are in transport position. Without this
weight, front tractor wheels could raise up result­ing in loss of steering. The weight may be attained
with front wheel weights, ballast in tires or front
tractor weights. Weigh the tractor and equipment.
Do not estimate.

• 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

Figure 1. Tractor Stability

ATTACHING MOWER TO T RACTOR

 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.

 Stop power unit and implement immediately
upon striking an obstruction. Dismount power unit,
using proper procedure. Inspect and repair any
damage before resuming operation.

10 Operation

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.

5WPMAN0511 (Rev. 7/18/2008)

CUTTING HEIGHT ADJUSTMENT

1. Tractor top link
A. Mower top link attachment point
B. Mower hitch pin
D. Lower hitch plate attachment point

CM906

Tether Chain

WARNING

 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 from mower frame to the ground at
each deck rail.

2. Verify that the same amount of spacer s are under
all caster arms.

3. Loosen cap screws that attach caster arm
assembly to deck.

4. Set mower on the ground.

Figure 2. Attachment Points

Figure 3. Attaching Mower to Tractor

3. Attach tether chain to tractor drawbar (Figure 3).

5. Retighten cap screws. This equalizes the

clearance in the bolt holes.

6. Adjust front of mower level with or slightly lower
than the rear to obtain best mowing results.

7. Control cutting height by adjusting front and rear
caster wheels.

8. To raise rear of mower, move caster adjustment
spacers under rear caster arms. (See Figure 5.)

9. To raise front of mowe r, move spacers under front
caster wheel arms. (See Figure 5.)

Figure 4. Cutting Height Adjustment

4. Adjust the tractor lower 3-point arm anti-sway

devices to prevent mower from swinging side to
side during transport.

5WPMAN0511 (Rev. 7/18/2008)

Remember, measurement at location A (Figure 4)
should not be less than locat ion B and should not be
over 1/2" greater than location B.

Operation 11

Adjust tractor top link so mower is level between caster

SPACERS REQUIRED UNDER

CASTER ARM PIVOT TUBE

Cut

Height

1/2"

Spacer

3/4"

Spacer

1"

Spacer

1-1/4"
*Spacer
(Spring)

1"

1-1/2" 1

2" 1

2-1/2" 11

3" 2

3-1/2" 12

4" *111
4-1/4" 112
4-1/2" *1 1 1 1

5" *121
5-1/2" *1 1 2 1

* GM1060 and GM1072 only

1. Tractor top link

A. Mower top link

attachment point
B. Mower hitch pin
D. Lower hitch plate

attachment point

wheel and ground (dimension C), Figure 7. This will
allow the mower to follow ground contour.

The mower has three lower hitch plate attachment
points (D), Figure 6. It may be necessary to change the
mower hitch plate attachment point to obtain proper tire
clearance and/or lift height.

Figure 5. Height Adjustment with Caster Arm Spacers

TRACTOR TOP LINK ADJ USTMENT

When the cutting height is set, adjust tractor top link
until mower top link attachment point (A) is aligned ver­tically with mower hitch pin (B), Figure 6.

12 Operation

Figure 6. Top Link Adjustment

Figure 7. Caster Wheel Distance

FRONT CASTER ARM CONFIGURATION

For GM1060 & GM1072 only

The front casters can be set in two positions. Figure 8
shows the two possible confi gurations for the GM1060
and GM1072 front caster arms.

● The inner position a llows the outside edge of the

mower to be used for trimming under shrubs or
fences.

● The outer position provide s the most clearance for

rear tractor tire interference.

5WPMAN0511 (Rev. 7/18/2008)

Figure 8. Front Caster Arm Configuration for GM1060 & GM1072 Only

CAUTION

To change configura tions, remove the c ap screws and
nuts and move the arms from one side of the wheel rail
to the other. Secure with same hardware.

The rear caster arms should be mounted as shown.
NOTE: The GM1084 front caster arms are fixed and

cannot be changed.

FRONT CASTER WHEEL INTERFERENCE
CHECK

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.

1. Raise mower with tractor hydraulics to 16" at

dimension C or maximum height of tractor lift,
whichever is less.

2. Pivot b oth front caster wheels forward an d check
that there is cle arance bet ween caster wheels an d
tractor tires.

3. If there is interference on models GM1060 and
GM1072, mount front casters in the outer positi on .

NOTE: On model GM1084, caster wheel width is not
adjustable; see tractor operator's manual and adjust
tractor wheels to narrower spacing.

FRONT ROLLER (OPTIONAL)

The caster wheels and side skids effectively reduce
scalping in most ca ses. However, you may encounter
areas where the caster wheel s and/or side skids drop
into depressions an d allow center of the mower to con­tact ground and scalp. An optional front roller may be
installed to minimize scalping. See page 31.

OPERATING TECHNIQUE

Figure 9. Front Caster Wheel Interference Check

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.

5WPMAN0511 (Rev. 7/18/2008)

 Stop power unit and implement immediately
upon striking an obstruction. Dismount power unit,
using proper procedure. Inspect and repair any
damage before resuming operation.

Power for operating mower is s upplied b y tractor PTO.
Operate PTO at 540 rpm. Know how to stop tractor and
mower quickly in an emergenc y.

If mower becomes p lugged causing belt to s lip fo r ov er
two seconds, follow these steps:

1. Maneuver equipment into a previously cut area
and allow mower to clear accumulated material.

Operation 13

2. Continue running at least two minutes, allowing

WARNING

WARNING

pulleys to cool. Stopping the mow er in con tact with
a very hot pulley will bake and ruin belt.

Uneven Terrain

Proper ground speed will depen d upon the t errain, 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 cu t at the same
height as the surrounding area. When this occurs,
reduce your ground speed, but maintain PTO at 540
rpm. The lower ground speed will permit grass to par­tially rebound.

In general, lower cu tting heights give a mo re even cut
and leave less tire tracks . However, 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.

 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.

Pass diagonally through sharp dips and avoid sharp
drops to prevent hanging up tractor and mower.

Practice will imp rove your skills in m aneuvering rough
terrain.

MOWER REMOVAL & STORAGE

Operating Tips

 Inspect and clear area of stones, branches, or
other hard objects that might be thrown, causing
injury or damage.

Extremely tall material should be cu t twice. Set mo wer
at a higher cutting hei ght for the first pass. Then cut a t
desired height, 90 degrees 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 mowing pattern to travel straight forward
whenever possible . Mow with uncut grass to the right.
This will distribute the clippings over the cut area.

Figure 10. Mower Storage Position

1. Disengag e tractor PTO and raise mower with the

3-point hitch.

2. Disconnect mower driveshaft from tractor PTO.

3. Collapse dr iveshaft as far as possible and store i t

in PTO hanger bracket to prevent ground contact.

4. Before e xte nde d st or age , se e page 19 for cl ea nin g
instructions.

5. 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.

14 Operation

5WPMAN0511 (Rev. 7/18/2008)

OWNER PRE-OPERATION CHECK LIST



(OWNER'S RESPONSIBILITY)
___ Review and follow all safety rules and safety

decal instructions on pages 5 to 9.

___ Check that all safety decals are installed and i n

good condition. Replace if damaged.

___ Check that all shields and guards are properly

installed and in good c ondition. Rep lace if dam­aged.

___ Check that chain shielding is in good condition

and replace any damaged chain links.

___ Check that all ha rdwar e and c otte r pin s ar e p rop-

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 slides freely and is seated firmly in trac­tor PTO spline groove.

___ Make sure the driv elin e guards and te ther c hains

are in good condition. Guards m ust 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 thrown, causing

injury or damage.
___ Do not allow riders.
___ Check all lubrication points and grease as

instructed in “Lubrication Information” on page

16. Make sure the PTO slip joint is lu bricated and

that the gearbox fluid levels are correct.
___ Set tractor PTO at 540 rpm.
___ Make sure tractor ROP S or ROPS cab and seat

belt are in goo d condition. Keep seat b elt

securely fastened during operation.
___ Before starting engi ne, operator must be in trac-

tor seat with seat belt fasten ed. Place transmi s-

sion in neutral or park, engage brake, and

disengage tractor PTO.

5WPMAN0511 (Rev. 7/18/2008)

Operation 15

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 technicians 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.

 Operate tractor PTO at 540 RPM. Do not exceed.

 Always wear relatively tight and belted clothing

to avoid getting caught 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.

Figure 11. Blocking Method

LUBRICATION INFORMATION

Do not let excess grease collect on or around parts,
particularly when operating in sandy areas.

Figure 12 shows the lubrication points. The accompa­nying chart gives the frequ ency of lubr icati on in op erat­ing 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.

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 b locking device for this mower is a
jackstand with a loa d rating of 1000 pounds or mo re.
One jackstand under each corner of the mower (four
total) must be installed before working underneath.

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 stabili ty before working under an y por­tion of the mower.

16 Owner Service

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.

Driveshaft Lubrication

Lubricate the driveshaft slip joint every 8 operating
hours. Failure to maintain proper lubrication could
result in damage to U-joints, gearbox, and driveshaft.

1. Lower mower to ground.

2. Apply grease at three locations shown in Figure 12.

3. Raise a nd lower mower several tim es to distribute

grease.

5WPMAN0511 (Rev. 7/18/2008)

REF DESCRIPTION FREQUENCY

1 Front U-Joint 8 Hours
2 Caster Wheel (Four wheels) 8 Hours
3 Caster Pivot (Four wheels) 8 Hours
4 Left Spindle (Access through hole) 24 Hours
5 Shield Bearings 8 Hours
6 Rear U-Joint 8 Hours
7 Gearbox (Fill to center of horizontal shaft with SAE 80W or 90W

gear lube)

Check Daily

8 Right Spindle (Access through hole) 24 Hours
9 Center Spindle (Access through hole) 24 Hours

10 Slip Joints 8 Hours

5WPMAN0511 (Rev. 7/18/2008)

Figure 12. Lubrication Points & Chart

Owner Service 17

Figure 13. Belt Routing

WARNING

BELT SERVICE
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

1. Disconnect idler spring from deck lug I.

2. Slide belt under drive pull ey A and over idl er arm.

Position belt around drive pulley A.

3. Loosen bolt holdin g belt gui de G and swing it away
from pulley B. Route belt aro und pulley B, idler C
and pulley D as shown.

4. Make sure belt is on drive pulley A, route aroun d
idler F, and connect idler spring to lug I on deck.

5. Grasp belt between spindle pulley E, spring loaded
idler F and spindle pulley D. Pull spring loaded idler
with belt to obtain enough belt length to route it
over pulley E. Make su re sprin g-lo aded idl er pivots
freely with belt installed.

NOTICE

■ Use care when installing or removing belt from

spring-loaded idler at step 5. Springs sto re energy
when extended and, if released suddenly, can
cause personal injury.

6. Adjust belt guide G to provide 1/16" to 1/8"

clearance from belt. Tighten bolt to 85 lbs-ft.

BLADE SERVICE

 Before dismounting po wer unit or performi ng
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.

18 Owner Service

5WPMAN0511 (Rev. 7/18/2008)

Blade Installation

CAUTION

1. Spindle assembly

2. Blade

3. 1/2 NC x 1-1/2
HHCS GR5

4. 1/2 NC Flange lock
nut

DANGER

 Your dealer can supply genuine replacement
blades. Substitute blades may not meet original
equipment specifications and may be dangerous.

Figure 14. Blade Assembly

1. Place cap sc rews (3) through oute r holes in blade

and spindle shaft.

2. Make sure bla de cutting edg e is posi tioned to lea d
in a clockwise rotation, as viewed from top of
mower.

3. Place lock nuts (4) on screws, torque to 84 lbs-ft.

Blade Sharpening

Figure 15. Blade Sharpening

NOTICE

■ When sharpening blades, be sure to balance

them. Unbalanced blades will cause excessive
vibration which can damage blade spindle bear­ings. Vibration may also cause structu ral cracks in
mower components.

1. Remove blades.

5WPMAN0511 (Rev. 7/18/2008)

2. Always sharpen both ends at the same time to
maintain balance.

3. Follow original sharpening pattern.

4. Do not sh arpen blade to a razor edge. Leave from

1/32" to 1/16" blunt edge.

5. Do not sharpen back side.

CHAIN SHIELDING

 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 .

Owner Service 19

TROUBLESHOOTING

MOWING CONDITIONS

PROBLEM POSSIBLE CAUSE SOLUTION

Grass cut higher in center of
swath than at edge

Grass cut lower in center of
swath than at edge

Streaking conditions in swath Conditions too wet for mowing Allow grass to dry before mowing.

Height of mower higher at front
than at rear

Loose blade Check blade hardware.

Height of mower lower at front
than at rear

Loose blade Check blade hardware.

Blades unable to cut that part of
grass pressed down by path of
tractor tires

Dull blades Sharpen or replace blades.

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

Loose blade Check blade hardware.

Material too high and too much
material

Grass wet Allow 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 at 90 degrees to first
pass. Raise rear of mower high
enough to permit material to
discharge, but not so high that
conditions listed above occu r.

Slow ground speed of tractor but keep
engine running at full PTO rpm.

20 Troubleshooting

5WPMAN0511 (Rev. 5/9/2008)

TROUBLESHOOTING

BELT COND I T IONS

PROBLEM POSSIBLE CAUSE SOLUTION

Belt slippage Mower overloading; Material too

tall or heavy

Oil on belt from over-lubrication Be careful not to over-lubricate. Clean

Belt hung up or rubbing Check belt position in pulleys and

Frayed edges on belt cover Belt misaligned Re-align belt. Be sure belt does not

Pulley misaligned Inspect 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 rollover Pulley misaligned Re-align pulley.

Damaged belt Replace belt.*

Foreign object in pulley groove Inspect all pulley grooves for rust,

paint, or weld spots and remove.

Worn pulley groove Replace pulley.

Damaged belt Rollover, high shock loads or

installation damaged

Belt breakage High shock loads Avoid abusive mowing. Avoid hitting

Belt came off drive Check 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.

5WPMAN0511 (Rev. 5/9/2008)

Troubleshooting 21

DEALER SERVICE

WARNING

CAUTION

1. 7/8 NF Jam nut

2. 1/4 NC x 1 HHCS GR5

3. .929 x 1.66 Lock washer

4. 1/4 Lock washer

5. Bushing, H 1 straight
bore w/key

6. Sheave, H 1 BK

19. 1/2 NF x 1-1/4
HHCS GR5

21. Grease fitting

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.

3. Remove jam nut (1) and washer (3) from top of

spindle shaft, Figure 16.

4. Disassemble split taper bushing (5) (located on top
of pulley) by removing the two bolts (2) and
washers (4).

5. Insert bol ts (2) into the threaded holes of bushing
flange.

6. Tighten bolts alternately to remove split taper
bushing.

7. Remove pulley (6).

8. Remove bolts (19) that attach spindle to mower

frame and remove spindle.

9. Remove grease fitting (21) from top of shaft.

 Always wear relatively tight and belted clothing
to avoid getting caught 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 "Blocking Method" instructions on page 16.

BLADE SPINDLE SERVICE

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.

Spindle Removal

1. Remove blade from spindle.

2. Remove belt from pulleys.

®

3D Aviation Form-A-Gasket or equivalent is

Figure 16. Sheave and Blade Assembly

Spindle Disassembly

1. Place spindle assembly in press and press shaft

down through housing.

2. Remove seals from housing.

22 Dealer Service

5WPMAN0511 (Rev. 5/9/2008)

Spindle Assembly

1. Grease fitting

2. Seal, 1.50 x 2.12 x .31

3. Sleeve, 1.14 x 1.50 x .55

4. Bearing, cone

5. Bearing, cup

6. Spindle, housing

7. Shaft, blade spindle

Refer to Figure 17.

Bearing cones and cups are designed to work together.
It is important to position th em so bearing cone taper
mates with cup taper.

1. Lubricate new c ups with a light oil. Place them in
spindle housing so they will mate with bearing
cones. Cups and cones are a pr ess fit to minimi ze
wear.

Seat cups securely with a press or place a large
drift in the flat lip and drive th em into housing until
cup seats against machined shoulder of housing.

Remove bearing cups from housing by placing a
punch in the slots provided and dr iving them out.
Alternate punch positions from side to side. Take
care to prevent housing damage.

2. Place bottom bearing cone into spindle with taper
positioned to mate with cup.

4. Apply a thin coat of Permatex to the area of
housing where seals seat.

5. Install botto m seal with spring up towa rd center of
housing.

6. Place se al squarely on housing and se lect a piece
of pipe or tubing with an OD that will set on outside
edge of seal. A tubi ng with an O D that is too small
will bow seal cage.

7. Carefully press seal into housing, to prevent
distortion to metal seal cage. Bottom seal should
seat firmly and squarely against machined
shoulder in housing.

8. Make sure seal lip did not roll under. Distortion to
seal cage or damage to seal lip will cause seal to
leak. Damaged seals must be replaced.

9. Insert shaft and bearing through bottom of housing.

10. Fill housing cavity with a medium grade grease.

11. Install top bearing on shaft to mate with top cone.

12. Apply a thin coat of Permatex to shaft ar ea where

sleeve will se at.

13. Install sleeve on shaft and press sleeve and
bearing into housing un til all free play is removed
and there is a very light drag on bearings (similar to
adjusting front wheel bearings on an automobile).
Check by spinning spindle. It should turn freely .

14. Be careful not to overtighten bearings. Proper
bearing adjustment is essential to good bearing
life.

15. If you overtighten bearings, hold spindle housing
and rap spindle shaft with a lead hammer.

16. Carefully pre ss top seal in with s pring up. Top seal
should be flush with, or to within 1/ 16" above, the
housing.

17. Rotate housing on spindle shaft, checking fo r free
movement.

18. Install grease fitting in spindle shaft.

■ Improper positioning of seals can cause seal

damage. An improperly installed seal will leak and
could cause bearing failure.

Figure 17. Spindle and Shaft Assembly

3. Identify the open side of the seal containing the

spring.

5WPMAN0511 (Rev. 5/9/2008)

NOTICE

Spindle Installation

NOTICE

■ Pulley installation sequence is very important

for bearing life. Follow the sequence exactly.

1. Install spindle through bottom of mower and secure

with four mounting bolts.

2. Install pulley and split taper bushing with integral
key on spindle shaft. Make sure bushing is in
contact with sleeve on spindle shaft.

3. Alterna tely tighten split taper bushing cap screws
to 12 lbs-ft.

4. Install toothed lock washer and nut on spindle
shaft. Tighten nut until snug. Bend up edge of lo ck
washer against a flat side on nut.

Dealer Service 23

.

1. Crown gear

2. Gearbox housing

3. Input shaft

4. Ou tput sh aft

5. Gear pinion

6. Bearing

7. Bearing

8. Protective flat washer

9. Cotter pin

10. Snap ring

11. Snap ring

12. Spacer

13. Shim

14. Castle nut

15. Castle nut M24 x 2

16. Shim

17. Flat washer

18. Oil seal (40 x 80 x 12 mm)

19. Oil seal (35 x 72 x 10 mm)

20. Cap

21. Snap ring

22. Top cover

23. Bolt M8 x 14 mm

24. Breather level plug

25. Cotter pin

26. Bearing

27. Ball bearing

Figure 18. Gearbox Assembly

GEARBOX REPAIR

Read this entire section before starting any repair.
Many steps are dependent on each other.

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.

Fill gearbox with SAE 80W or 90W gear lube until it
runs out the side level plug.

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.

Seal Replacement

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 cutter.

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

24 Dealer Service

5WPMAN0511 (Rev. 5/9/2008)

seal but will clear th e housing. Tubing with an OD

1. Seal

2. Pipe or tube

3. Seal seat

4. Casting

Pipe or tube must
press at outer
edge of seal

Incorrect
Installation

5. Screw, HHCS 8 mm x 1.25P x 16 mm

6. Nut, flanged lock 1/2 NC

7. Nut, flanged lock 5/8 NC

8. Screw, HHCS 5/8 NC x 1-3/4

9. Gearbox

10. Vent plug

11. Key, 1/4 x 1/4 x 1-1/4

12. Washer, 25 x 44 x 4 mm

13. Castle nut, M24 x 2

14. Cotter pin, 3/16 x 2

1. Sheave, offset 13.25 PD

2. Gearbox stand

3. Shield

4. Washer, flat 5/16

that is too small will bow seal cage and ruin seal.

5. Carefully press seal into housing, avoiding
distortion to the metal seal cage.

Figure 19. Seal Installation

Vertical Shaft Seal Replacement

1. Disconnect and remove the driveline from the

gearbox.

2. Remove vent plug (24). Figure 18, and siphon gear
lube from housing through this opening.

3. Remove gearbox stand from mower deck.

4. Remove gearbox and pulley from gearbox stand.

5. Remove vertical s haft seal (18). Rep lace with new

seal (see Seal Replacement, page 24).
Vertical seal should be recessed in 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.

Gearbox Removal from Mower (Figure 20)

Figure 20. Gearbox Stand Assembly

1. Disconn ect and remove the rear dri veline from the

gearbox (9).

Horizontal Shaft Seal Replacement

1. Disconnect and remove the driveline from the

gearbox.

2. Remove vent plug (24), Figure 18, and siphon gear
lube from housing through this opening.

3. If the leak occurred at either end of horizontal shaft,
remove oil cap (20) and/or oil seal (19). Replace
with new one (see Seal Replacement, page 24).

Horizontal seal should be pressed flush with out­side of housing.

4. Fill gearbox with SAE 80W or 90W gear lube until it
runs out the level plug.

5WPMAN0511 (Rev. 5/9/2008)

2. Remov e vent plug (10) a nd siphon gear lube from
housing through this opening.

3. Remove gearbox stand (2) from mower deck by
removing four flanged lock nuts (6).

4. Remove four cap screws (5) and washers (4) and
remove shield (3) from gearbox.

5. Remove c astle nut (13) a nd hardware fro m output
shaft of gearbox.

6. Remove sheave (1) from gearbox.

7. Remove four bolts (8) that attach gearbox to

gearbox stand and remove gearbox.

Dealer Service 25

Gearbox Disassembly

Refer to Figure 18.

1. Remove top cover (22) from housing. Turn gearbox

upside down and pour out remaining gear oil from
gearbox.

2. Remove oil cap (20) (to be replaced).

3. Remove snap ring (10) and shim (13) from input

shaft (3).

4. Support ge arbox in hand pr ess and push on input
shaft (3) to remove bearing (7).

5. Remove gear (1) from inside housing.

6. Remove oil seal (19) from front of housing (to be

replaced).

7. Remove snap rin g (10) and shim (1 3) from front of
housing (2).

8. Remove input bearing (7) by using a punch and
hammer from outside of housing.

9. Support housing in vise in a horizontal position.

10. The castle nut (15) and cotter pin (25) ar e already

removed with the dr ive shea ve. Remov e snap r ing
(21), washer (8), and seal (18).

11. Remove cotter pin (9), castle nut (14), a nd wash er
(17) from output shaft (4).

12. Remove output shaft (4) by using a punch and
hammer and tap on top to drive down.

13. Remove gear (5) and shim (16) from inside
housing.

14. Remove bearing (26) by using a punch and
hammer from the top, outside the housing.

15. Support housi ng upside down (top cover surface)
and remove bearing (6) by using a punch and
hammer from the bottom side of the housing.

16. Inspect gears for broken teeth and wear. Some
wear is normal and will show on loaded side.
Forged gear surface s are rough when n ew. Check
that wear pattern is smooth.

17. Inspect vertical and horizontal shafts for grooves,
nicks, or bumps in the areas where the seal s seat.
Resurface any damage with emery cloth.

18. Inspect housing and caps for cracks or other
damage.

Gearbox Reassembly

Refer to Figure 18.

NOTE: Repair to this gearbox is limited to replacing

bearings, seals, and ga skets. Replacing gears, sh afts,
and a housing is not cost effecti ve. Purchasi ng a com­plete gearbox is more economical.

1. Clean housing, paying specific attention to areas
where gaskets will be installed.

2. Wash housing and all components thoroughly.
Select a clean area for gearbox assembly. Replace
all seals, beari ngs, and gaskets. All parts m ust be
clean and lightly oiled before reassembling.

3. Insert output bearings (6 & 26) in the housing,
using a round tube of the c orrect diameter and a
hand press.

4. Slide output shaft (4) through b oth bearings (6 &

26) until it rests against bearing (6).

5. Slide shim (16) over output shaft (4).

6. Press gear (5) onto output shaft (4) and secure

with washer (17), castle nut (14), and cotter pin (9).

7. Appl y grease to lo wer seal l ips (18) an d pres s seal
over output shaft (4), using a tube of the correct
diameter. Be sure not to damage the seal lip. Press
in housing so that seal is recessed.

8. Insert protective washer (8) by hand. I nstall sna p
ring (21) and posi tion it together with dua l lip seal
(18) by pressing it into position. Verify that snap
ring is seated correctly.

9. Press bearing (7) into the hous ing, using a round
tube of the correct diameter and a hand press.
Secure with shim (13) and snap ring (10).

10. Secure snap ring (11) on input shaft (3) if not
already secure.

11. Place gear (1) through top of housing and align
gear (1) and gear (5) so that gear teeth are a
match.

12. While holding gear (1) in place, slide input shaft (3)
through gear (1) and bearing ( 7). Align splines on
shaft (3) and gear (1).

13. Slide spacer (12) over input shaft (3) and press
bearing onto input shaft (3), u sing a round tube of
the correct diameter and a hand press.

14. Slide shim (13) over input shaft (3) and secure with
snap ring (10).

15. Check input shaft end float by moving the input
shaft (3) by hand. If end flo at is h igh er tha n 0.012",
insert shim between input shaft (3) and rear
bearing (7). Repeat until end float is less than

0.012". Check rotational torque by hand. The
torque should be less than 2.2 lbs-inch.

16. Check that the gear backlash is between 0.006"
and 0.016". You should not have to adjust the
backlash.

17. Press in input oil seal (19), using tube of correct
diameter. Be careful not to damage seal lip.

18. Press oil cap (20) on to c over the rear o f housing,
using a tube of the correct diameter.

26 Dealer Service

5WPMAN0511 (Rev. 5/9/2008)

19. Check gearbox housing for leaks by plugging all

1. Shim

2. Idle r arm

3. Idle r pul le y

4. Drive sheave

5. Cas tle nut & cott er pin

6. Gearbox stand

1. Yoke

2. Cup and bearings

3. Snap ring

4. Journal cross

holes except one. Apply 4 psi compressed air and
immerse the gearbox in water to verify that there
are no leak s.

20. Remove gearbox from water and dry off with
compressed air. Add SAE 80W or 90W EP oil until
it runs out of side level hole. Tighten all plugs.

Gearbox Installation

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 dri ve sheave to output shaft. Secure using
castle nut and hardware previously removed.

3. Attach gear box stand to mower using four flang ed
1/2" lock nuts.

Drive Sheave Installation

Refer to Figure 21.

1. Whe n gear stand is install ed on mower, dimension

A (from the top of the mower deck to the center line
of the drive pulley) must be 2-7/16" (±1/32"). This is
a critical dimen sion and mus t be c arefu lly adjusted
for proper bel t life. Add or subtract shim washers
under idler pulley (3) to align with drive pulley (4).

UNIVERSAL JOINT REPAIR

Figure 22. U-Joint Exploded View

U-Joint Disassembly

1. Remove external snap rings from yokes in four

locations as shown in Figure 23.

.

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.

Figure 21. Drive Sheave Installation

Figure 23

Figure 24

2. With snap rings removed, support drive in vise,

hold yoke in hand and tap on yok e to drive cup up
out of yoke. See Figure 24.

5WPMAN0511 (Rev. 5/9/2008)

Dealer Service 27

3. Clamp cup in vise as shown in Figure 2 5 and tap
on yoke to completely remove cup from yoke.
Repeat Step 2 and Step 3 for opposite cup.

Figure 25

4. Place universal cross in vi se as sh ow n in Fi gu re 26

and tap on yoke to remove cup. Repeat Step 3 for
final removal. Drive remaining cup out with a drift
and hammer.

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 bearin gs 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 27. Install snap ring and
repeat on opposite cup.

4. Repeat Step 1 and 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 26

28 Dealer Service

Figure 27

5WPMAN0511 (Rev. 5/9/2008)

assembly instructions

WARNING

CAUTION

PTO Storage Bracket

Rear Offset
Link

Front

Offset

Front Offset
Link

Lock Nuts

Link

CM905

44

9

●

DEALER SET-UP INSTRUCTIONS

Assembly of this mower is the responsibility of the
dealer. If 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 33 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 44.

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.

NOTE: Front li nk with the PTO storage br acket shoul d
be installed on right s ide of mower as shown in F igure

28.

 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.

 Always wear relatively tight and belted clothing
to avoid getting caught 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.

Figure 28. Front Offset Links Installed

Install Rear Offset Links

1. Loose n nut (44) at re ar frame lug and rotate offset

link (9) up as shown in Figure 29.

2. Repeat for opposite side.

3. Do not tighten at this time.

Install Front Offset Links

1. Loosen lock nuts at lower hitch point and rotate

offset link up off of gearbox as shown.

2. Tighten nut securely.

3. Repeat for opposite side.

5WPMAN0511 (Rev. 5/9/2008)

9. Link, rear offset

44. Nut, flanged lock 1/2 NC

Figure 29. Right Rear Offset Link Installed

Assembly 29

Install Top Link

11

10

44

40

9

CM757

30

CM757

9. Link, rear offset

10. Link, front offset

11. Link, U-bracket

30. Sleeve, .62 x .84 x 2.88

40. Screw, HHCS 1/2 NC x 4-3/4 GR5

44. Nut, flanged lock 1/2 NC

20

44

60

20. Caster arm assembly

44. Nut, flanged lock 1/2 NC

60. Screw, HHCS 1/2 NC x 1-3/4 GR5

A. Gearbox input shaft
B. Locking collar
C. Anti-rotation chain

1. Gearbox

2. Shield

3. Driveline

4. Washer, flat standard 5/16

5. Screw, HHCS 8 mm x 1.25P x 16 mm

1. Remove rear caster wheel assembly (20) from
shipping position and install as shown in Figure 31
using the same bolts (60) and nuts (44).

2. Repeat for opposite side.

3. Tighten bolts so that caster arm is snug against

deck bracket, but not fully torqued.
NOTE:Refer to Front Caster Wheel Interference

Check, page 13 for possi ble front caste r arm posi­tions.

4. Attach front caster arm in desired position and
tighten snug against deck bracket.

Torque Caster Arm Hardware

1. Lift mower off shipping pallet and set on a hard

level surface. This allows clearance in the caster
wheel assemblies to be equalized.

2. Tighten all ca p screws and nuts on all fo ur caster
wheel arms.

3. Torque all cap screws and nuts to 85 lbs-ft.

Figure 30. Top Link Assembled

1. Insert cap scr ew (40) through rear offset li nks (9),

pipe (30), U-bracket (11) and front offset links (10)
as shown and tighten securely with nut (44).

2. Tighten hardware on rear frame lug and offset link.

Install Rear Caster Arm

Install Driveline Shield

Attach shield (2), Figure 32, to gearbox (1) with cap
screws (5) and flat washers (4).

Figure 31. Rear Caster Arm Installed

30 Assembly

Figure 32. Rear Driveshaft Installation

5WPMAN0511 (Rev. 5/9/2008)

Install Driveshaft

DANGER

15

3

14

CM768

3. Shield, chain plate

14. Bolt, carriage 3/8 NC x 1

15. Nut, flanged lock 3/8 NC

2. 1/2 NC Flanged lock nut

3. 1/2 NC Flanged lock nut

4. 1/2 SAE Flat washer

5. 3/8 NC x 1 Carriage bolt

6. 3/8 NC Flanged whiz nut

7. Spacer, .75 x 6.62

8. Bracket, front roller

9. Roller, 4 x 7.37

10. Bearing

1. Pull locking collar (B) back and, at th e same time,
push driveline onto tractor gearbox shaft until
locking device engages.

2. Attach shield an ti-rotation chain (C) to dri ve shield
(2) as shown.

Fill Gearbox

NOTICE

■ Gearbox is not filled at the factory. Prior to

delivery, make sure each gearbox is filled h alf-full
with 80W or 90W API GL-4 or GL-5 gear lube.

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 se rvice rating of
GL-4 or GL-5.

2. Fill gearbox until oil runs out the side plug on
gearbox.

3. Pour in one pint of gear lube, wait five minutes and
add additional gear lube until it just comes out o f
side hole.

4. Allow an add itiona l five minutes for the lub e to flow
through bearings, then check to make sure oil level
is at bottom of side hole. Rep lace side plug. Install
vent plug.

Install Chain Shielding (Optional)

Figure 33 . Chain Shield Installed

Install Front Roller (Optional)

1. Insert four carriage bolts (5) through the front

mower frame from inside out.

2. Place roller bracket (8) over bolts; then install
flange whiz nuts (6) on bolts and tighten.

3. Place front roller (9), two beari ngs (10), s pacer (7)
and two SAE flat washers (4) between roller
bracket as shown in Figure 34.

4. Insert cap screw (3) through bracket and roller.

5. Secure with flanged lock nut (2). Do not

overtighten, roller must spin freely.

 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).

Insert carriage bolts from bottom upward as
shown.

5WPMAN0511 (Rev. 5/9/2008)

It is possible for objects to ricochet

Figure 34. Front Roller Installation

Assembly 31

I

1. Offset link, .38 x 2 x 15"

2. Chain, 3/8 proof coil 38-link

3. Sleeve, .94 x 1.44 x 1.94"

4. Screw, 1/2 NC x 6 HHCS GR5

5. Washer, 1/2" flat

6. Sleeve, .50 x .75 x 3.38"

7. Nut, 1/2 NC flange lock

8. Sleeve, 7/8 x 1-1/8 x 19/32" HT

9. Washer, 3/4 flat

10. Sleeve, .81 x 1.25 x 1.81"

11. Screw, 3/4 NC x 4-1/2 HHCS

12. Nut, 3/4 NC plated hex

CHAIN CUT-TO-LENGTH CHART

Model Dimension “A”

GM1060 40"
GM1072 45"
GM1084 50"

NOTE: This kit is used on other models. Use only the hardware listed below.

Figure 35. Quick Hitch Kit Installation (Optional)

Install Quick Hitch Kit 5WD1005400
(Optional)

NOTE: This kit allows mower to fit only Category 1

standard quick hitch.

1. Make sure that you are using one of the front two
attachment points (D) in the lower hitch plates. See
Figure 6, page 12, for adjustment.

2. Remove clevis pins from lower hitch arms. The
pins will not be used for the Quick Hitch.

3. Attach offset link (1) to lower hitch clevis using
sleeves (3 & 8), two flat washers (9), cap screw
(11), and hex nut (12) as shown in Figure 35. Do
not tighten hardware. Repeat for opposite side.

32 Assembly

4. Attach u pper end o f offset links (1) to ea ch side o f

U-bracket link, using two flat washers (5), sleeves
(6 & 10), flange lo ck nut (7), and 1/2 x 4-3/4 cap
screw.

5. Remove rear offset links. They will be replaced
with chains (2).

6. Attach chains to top of A-frame on both sides as
shown, using cap s crew (4), two flat washers ( 5),
and nut.

7. Attach op posite ends of chains (2) to rear mower
frame as shown. Cut chains to length (see chart
above). Vary length slightly as desired. Twist chain
to make finite adjustments in length until unit lifts
level.

8. Tighten all hardware.

(Rev. 10/18/2012)

5WPMAN0511 (Rev. 5/9/2008)

DEALER CHECK LISTS

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 that all sa fety decals are installed a nd 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.

DELIVERY CHECK LIST

(DEALER’S RESPONSIBILITY)

___ Show custo mer how to make adjustmen ts and

select proper PTO speed.

___ Instruct customer how to lubricate and explain

importance of lubrication.

___ Point out the safety de cals. Explain 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 customer the s afe, 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 grease all lu brication poi nts as iden-

tified in “Lubrication Information” on page 16.

___ Gearboxes are not filled at the factory. Prior to

delivery, fill as specified in the “ Owner Service,
Lubrication Informati on” on page 16 and check
to see that there are no leaking seals.

___ Check that blades have been properly installed.

___ Explain to custome r the potential crushing ha z-

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 “Owner Service, B locking Methods” sectio n
of the Operator ’s Manual. Explain th at blocking
up prevents equipment d ropping from hydr aulic
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 20% of tractor
and equipment gross weight must be on front
tractor wheels. When adding weight to attain
20% 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.

5WPMAN051 1 (Rev . 5/9/2008)

Dealer Check Lists 33

NOTES

34 Notes

5WPMAN0511 (Rev. 5/9/2008)

Rear Discharge
Grooming Mowers:

GM1060
GM1072
GM1084

PARTS INDEX

MAIN FRAME ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 - 37

GEARBOX ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

DRIVESHAFT ASSEMBLY (WALTERSCHEID TWO-LOBE) . . . . . . . . .39

DRIVESHAFT ASSEMBLY (COMER). . . . . . . . . . . . . . . . . . . . . . . . . . .40

BLADE & SPINDLE ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

REAR CHAIN SHIELDING ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . .42

FRONT ROLLER ASSEMBLY (OPTIONAL). . . . . . . . . . . . . . . . . . . . . . 4 2

QUICK HITCH KIT (OPTIONAL). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

(Rev. 8/6/2012)
5WPMAN0511 (Rev. 7/18/2008)

Parts 35

GM1060, GM1072 & GM1084 MAIN FRAME ASSEMBLY

36 Parts

5WPMAN0511 (Rev. 7/18/2008)

GM1060, GM1072 & GM1084 MAIN FRAME ASSEMBLY

REF PART QTY DESCRIPTION

1 – – – – 1 Main Frame (not sold separately)
2 5WP1016501 2 Hitch
3 5WP20409 2 Clevis Pin, 7/8 x 3
4 5WP1001244 1 V-Belt W99 (GM1060) -or-
4 5WP18879 1 V-Belt W112 (GM1072) -or-
4 5WP53418 1 V-Belt W157 (GM1084)
5 5WP1016511 4 Wheel, 4 x 10" w/Bearing & Sleeve
5 5WP19754 4 Wheel, 4 x 10" w/Bearing & Sleeve

(pneumati c tires only)
6 5WP65577 8 Bearing, Flanged Wheel .75 x 1.415
7 5WP19756 4 Bearing, Roller .75 x 1.38 x 2.5
8 5WP19749 4 Sleeve, .525 x .75 x 4.13
9 5WP55331 2 Rear Offset Link Arm(GM1060)or
9 5WP19578 Rear Offset Link Arm(GM1072)or
9 5WP52873 2 Rear Offset Link Arm (GM1084)

10 5WP19579 2 A-Frame Arm
11 5WP19605 1 Top Link U-Bracket
12 5WP33647 4 Sleeve 1.05 x 1.31 x .75 (GM1060 &

GM1072) -or-

12 5WP52854 4 Sleeve 1.28 x 1.66 x .75(GM1084)
13 5WP65129 4 Sleeve 1.05 x 1.31 x .50 (GM1060 &

GM1072) -or-

13 5WP52853 4 Sleeve1.28 x 1.66x .50(GM1084)
14 5WP65130 8 Sleeve 1.05 x 1.31 x 1.00 (GM1060

& GM1072) -or-

14 5WP52855 8 Sleeve 1
15 5WP67407 4 Spring, Comp 1.40 x .19 x 2.1, 257
16 5WP33677 4 Washer, Flat .50 x 1.56 x 10 GA
17 * 4 Washer, Lock 1/2
18 * 6 Screw, 1/2 NC x 1-1/4 HHCS GR5
19 5WP67318 4 Caster Yoke & Shaft Asy ( GM1060 &

GM1072) -or-

19 5WP19747 4 Caster Yoke & Shaf t Asy (pneumat ic

GM1060/GM1072) -or-

19 5WP52859 4 Caster Yoke & Shaft Asy ( GM1084 &

GM1084 pneumatic)

20 5WP1014401 4 Caster Arm (GM1060/GM1072)
20 5WP1014403 4 Caster Arm (GM1084 only)
21 * 4 Grease Fitting 1/4-28 Str, 15/32
22 5WP1014416 1 Manual Tube Holder / PTO Hanger
23 5WP51849 1 Shield, Counter-Cone
24 5WP53534 1 Gearbox Stand
25 5WP1014417 1 Belt Shield, Right (GM1060) -or-
25 5WP1014418 1 Belt Shield, Right (GM1072) -or-
25 5WP52874 1 Belt Shield, Right (GM1084)
26 5WP1014417 1 Belt Shield, Left (GM1060) -or-
26 5WP1014418 1 Belt Shield, Left (GM1072) -or-
26 5WP52875 1 Belt Shield , Left (GM1084)

.2

8x1.66 x 1.0(GM1084)

REF PART QTY DESCRIPTION

27 5WP40551 1 Drive, Cmpl Walterscheid, see pg 39
27 5WP1009508 1 Drive, Compl Comer, see pg 40
28 5WP1008011 4 Nut, 3/8 NC Square w/Retainer
29 5WP53567 1 Guide, Belt 8 GA Formed
30 5WP64814 1 Sleeve, .62 x .84 x 2.88
31 5WP64555 1 Idler, Flat 5.5 PD
32 5WP1002499 1 Gearbox 1:1.92 (see page 38)
33 5WP1014410 1 Sheave, Offset 13.25 PD
34 5WP67131 1 Spring, Ext .177 x 1.22 x 9.88
35 5WP53595 1 Idler, Flat 5.0 PD (GM1060 &

GM1072) -or-
35 5WP64555 1 Idler, Flat 5.5 PD (GM1084)
36 5WP58989 1 Idler Arm
37 * 2 Screw, 1/2 NC x 1-3/4 HHCS GR5
38 * 1 Screw, 1/2 NC x 2-1/4 HHCS GR5
39 * 1 Cotter Pin, 3/16 x 1-1/2
40 * 1 Screw, 1/2 NC x 4-3/4 HHCS GR5
41 5WP19024 5
42 * 2 Screw, 5/8 NC x 3 HHCS GR5
43 5WP39254 4 Screw, M8 x 1.25P x 16 mm HHCS

44 5WP11900 22 Nut, 1/2 NC Flanged Lock
45 5WP19025 7 Nut, 5/8 NC Flanged Lock
46 * 1 Key, 1/4 x 1/4 x 1-1/4 HT
47 5WP62153 8 Screw, 3/8 NC x 1 HHCS Flng Ser.
48 5WP35141 2 Retaining Ring
49 5WP302178 1 Nut, 5/8 NF Castle
50 5WP35193 2 Bearing
51 5WP1004656 1 Manual Tube - PVC
52 5WP1004657 2 Caplug, 2.0 ID x 1.0
53 5WP484 2 Sleeve, 5/8 x 1 x 7/16
54 5WP24537 1 Washer, Flat .50 x 1.38 x .38
55 5WP31983 1 Washer, Shim .50 x .88 x 18 GA
56 5WP52877 1 Sleeve,
57 * 4 Washer, Flat Standard 5/16
58 5WP1517 1 Washer, Flat .625 x 1.38 x 7 GA
59 * 2 Pin, Safety 3/16
60 * 8 Screw, 1/2 NC x 3-1/2 HHCS GR5
61 * 4 Screw, 1/2 NC x 5 HHCS GR5

61 * 4 Screw, 1/2 NC x 5-1/2 HHCS GR5

62 5WP12313 2 Sleeve, 5/8 x 1 x 13/16 HT
63 5W P1016512 4 Caplug, Square 1.75 x .44
64 5WP55344 1 Decal Set, Complete
67 * 8 Washer, 1/2 SAE Flat

Screw, 5/8 NC x 1-3/4 Flange HHCS

CL8.8

.504x .625x .64

(GM1060 & GM1072) -or-

(GM1084 & pneumatic tires)

* Obtain Locally

(GM1084)

5WPMAN0511 (Rev. 7/18/2008)

Parts 37

GM1060, GM1072 & GM1084 GEARBOX ASSEMBLY

REF PART QTY DESCRIPTION

A 5WP1002499 1 Gearbox Asy, Complete
1 5WP57458 1 Gear, Crown 25T M5.3
2 NSS 1 Gearbox Housing
3 5WP1005320 1 Shaft, Input 1-3/8 -6
4 5WP1005321 1 Shaft, Output 1-1/4
5 5WP57491 1 Pinion Gear 13T M5.3
6 5WP57476 1 Bearing Cup & Cone
7 5WP57462 1 Bearing Cup & Cone
8 5WP20888 1 Washer, 1.58 x 3.13 x .04

Protective Flat

9 * 1 Pin, Cotter B4 x 50

10 5WP57466 2 Snap Ring

11 5WP20895 1 Snap Ring, 45 mm
12 5WP57373 1 Spacer, 35.3 x 48 x 2.5
13 5WP57328 2 Kit, Shim 60.3 x 71.6
14 5WP57468 1 Nut, Castle
15 5WP51946 1 Nut, Castle M24 x 2
16 5WP57328 1 Kit, Shim 30.3 x 44
17 5WP57473 1 Washer , 21 x 37 x 3 mm Flat
18 5WP20900 1 Seal, Oil 40 x 80 x 12 mm
19 5WP57463 1 Seal, Oil 35 x 72 x 10 mm
20 5WP57374 1 Oil Cap

REF PART QTY DESCRIPTION

21 5WP20897 1 Snap Ring SB 81 Int
22 5WP57375 1 Cover, Top
23 * 6 Bolt, 8 mm x 14 mm
24 5WP57076 1 Plug, 1/2 Breather Level
25 * 1 Pin, Cotter 5 x 50
26 5WP57478 1 Bearing Cup & Cone
27 5WP20890 1 Ball Bearing

NSS Not Sold Separately

* Obtain Locally

38 Parts

5WPMAN0511 (Rev. 7/18/2008)

GM1060, GM1072 & GM1084 DR IV ESH A FT

WALTERSCHEID (TWO-LOBE SHAFT)

REF PART QTY DESCRIPTION

A 5WP40551 1 Complete Drive Shaft
1 5WP40571 2 Yoke, 1-3/8 6-Spline QD
2 5WP154 2 U-Joint Repair Kit L14R
3 5WP40775 1 Pin, Spring 10 mm x 65 mm

(Pkg of 10)
4 5WP40572 1 Yoke, Inner Profile
5 5WP40583 1 Drive Tube, Inner Profile
6 5WP40584 1 Drive Tube, Outer Profile
7 5WP40573 1 Yoke, Outer Profile

12 5WP40776 1 Bearing Ring Kit (set of 2)
13 5WP40777 2 Chain, Guard Anti-Rotation

5WPMAN0511 (Rev. 7/18/2008)

REF PART QTY DESCRIPTION

14 5WP40778 1 Screw, Guard Retainer (Pkg of 10)
17 5WP40779 1 Grease Zerk, Drive Line (Pkg of

10)
18 5WP40780 1 Bearing, Guard Support
20 5WP40589 2 Slide Lock Collar Repair Kit

(without yoke)

21 5WP40585 1 Shield, Outer Half Non-Rotating

(also includes items 12, 13 & 14)

22 5WP40586 1 Shield, Inner Half Non-Rotating

(also includes items 12-14 & 18)
23 5WP40581 1 Drive, Inner Half Complete
24 5WP40582 1 Drive, Outer Half Complete

Parts 39

GM1060, GM1072 & GM1084 DR IV ESH A FT

COMER

REF PART QTY DESCRIPTION

A 5WP1009508 1 Complete driveline asy
1 5WP1001300 2 Complete collar yoke

C12 1-3/8 - 6
2 5WP38478 2 Cross and bearing kit
3 5WP1019442 1 Outer cone fix ring
4 5WP30922 6 Protection fixing screw
5 5WP1019444 1 Inner cone fix ring

40 Parts

REF PART QTY DESCRIPTION

6 5WP30917 2 Ch ain-shield tether

9 5WP1001340 1 Lock collar repair kit
10 5WP1001302 1 Flexible pin
11 5WP1001301 1 Outer yoke tube
12 5WP1001305 1 Flexible pin
13 5WP1001306 1 Inner tube yoke
14 5WP1021323 1 Complete shield

5WPMAN0511 (Rev. 7/18/2008)

GM1060, GM1072 & GM1084 BLADE & SPINDLE ASSEMBLY

REF PART DESCRIPTION

1 5WP37009 Nut, Jam 7/8 NF
2 * Screw, HHCS 1/4 NC x 1 GR5
3 5WP52898 Washer, Lock .929 x 1.66
4 * Washer, Lock 1/4
5 5WP34440 Bushing, H 1 Straight bore w/key
6 5WP66694 Sheave, H 1 BK 4.17 PD (GM1060)

-or-

6 5WP12622 Sheave, H 1 BK 5.0 PD (GM1072)

-or-

6 5WP53419 Sheave, H 1 BK 5.9 PD (GM1084)
7 5WP52881 Spindle Assembly, Complete
8 5WP52949 Seal, 1.50 x 2.12 x .31

9 5WP52872 Sleeve, 1.14 x 1.50 x .55
10 5WP29899 Bearing Cone
1 1 5WP52882 Blade Spindle Hous in g wit h Cup s
12 5WP29898 Bearing Cup
14 5WP52852 Shaft, Blade Spindle
16 5WP1001513KT Blade Kit, High Suction 21 In

(set of 3) (GM1060)

16 5WP1008199KT Blade Kit, High Suction 25 In

(set of 3) (GM1072)

16 5WP53417KT Blade Kit, High Suction 29.33 In

(set of 3) (GM1084)

16 5WP1001510KT Blade Kit, Low Suction 21 In

(set of 3) (GM1060)

16 5WP1001511KT Blade Kit, Low Suction 25 In

(set of 3) (GM1072)

16 5WP1001512KT Blade Kit, Low Suction 29.33 In

(set of 3) (GM1084)
19 5WP4358 Screw, HHCS 1/2 NF x 1-1/4 GR5
21 * Grease Fitting, 1/4-28 Tapered Threa d
22 5WP3379 Screw, HHCS 1/2 NC x 1-1/2 GR5
23 5WP11900 Nut, Flanged Lock 1/2 NC

* Standard Hardware - Obta in Locally

5WPMAN0511 (Rev. 7/18/2008)

Parts 41

GM1060, GM1072 & GM1084

REF PART QTY DESCRIPTION

A 5WD55348 - C hain Shield Assembly (GM1060)
B 5WD53566 - C hain Shield Assembly (GM1072)

C 5WD52856 - Chain Shield Assembly (GM1084)

1 5WP1007854 1 Pin, Chain (for GM1060 only) -or-
1 5WP1007856 1 Pin, Chain (for GM1072 only) -or-
1 5WP1007850 2 Pin, Chain (for GM1084 only)
2 5WP4763 - Chain, 3 Link, 1/4 Proof (use 54 for GM1060;

66 for GM1072; 78 for GM1084)

REF PART QTY DESCRIPTION

3 5WP55345 1 Shield, Chain Plate (for GM1060 only) -or-
3 5WP53554 1 Shield, Chain Plate (for GM1072 only) -or-

3 5WP52885 2 Shield, Chain Plate (for GM1084 only)
14 * Bolt, Carriage 3/8 NC x 1
15 5WP14350 - Nut, Flanged Lock 3/8 NC

* Standard Hardware, Obtain Locally

CD4997A

REF PART QTY DESCRIPTION

A 5WD1006417 1 Kit, Front Bearing, Roller & Bracket
2 5WP11900 1 1/2 NC Flanged Lock Nut
3 5WP38107 1 1/2 NC x 9 Cap Screw GR5
4 * 2 1/2 Flat Washer SAE
5 * 4 3/8 NC x 1 Carriage Bolt GR5
6 5WP70069 4 3/8 NC Flanged Whiz Nut
7 5WP1006420 1 Spacer, .75 x 7.27
8 5WP1006419 1 Bracket, Front Roller
9 5WP1006418 1 Roller, 4 x 7.38

10 5WP35193 2 Bearing

* Standard Hardware, Obtain Locally

REAR CHAIN SHIELDING ASSEMBLY (OPTIONAL)

GM1060, GM1072 & GM1084 FRONT ROLLER ASSEMBLY (OPTIONAL)

42 Parts

(Rev. 10/18/2012)

5WPMAN0511 (Rev. 7/18/2008)

QUICK HITC H KIT (OPTIONAL)

CHAIN CUT-TO-LENGTH CHART

Model Dimension “A”

GM1060 40"
GM1072 45"
GM1084 50"

NOTE:This kit is used on other models. Use only the hardware listed below.

REF PART QTY DESCRIPTION

A 5WD1005400 - Quick Hitch Kit, Complete
1 5WP1003692 2 Link, Offset .38 x 2.0 x 15
2 5WP1005401 2 Chain, 3/8 Proof Coil 38-Link
3 5WP1016517 2 Sleeve, .94 x 1.44 x 1.94"
4 5WP13563 1 Screw, 1/2 NC x 6 HHCS GR5
5 * 6 Washer, 1/2" Flat
6 5WP29368 1 Sleeve, .50 x .75 x 3.38"
7 5WP11900 1 Nut, 1/2 NC Flange Lock
8 5WP29281 2 Sleeve, 7/8 x 1-1/8 x 19/32" HT
9 * 4 Washer, 3/4 Flat

10 5WP1003614 1 Sleeve, .81 x 1.25 x 1.81

11 * 2 Screw, 3/4 NC x 4-1/2 HHCS

12 * 2 Nut, 3/4 NC Plated Hex

* Standard Hardware, Obtain Locally

(Rev. 10/18/2012)
5WPMAN0511 (Rev. 7/18/2008)

Parts 43

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.

A

Diameter

(Inches)

1/4" 7/16" 6 8 10 13 14 18

5/16"1/2"121719262737

3/8"9/16"233135474967

7/16"5/8"3648557578106

1/2" 3/4" 55 75 85 115 120 163

9/16" 13/16" 78 106 121 164 171 232

5/8" 15/16" 110 149 170 230 240 325
3/4" 1-1/8" 192 261 297 403 420 569
7/8" 1-5/16" 306 416 474 642 669 907

1" 1-1/2" 467 634 722 979 1020 1383

A

Diameter &

Thread Pitch

(Millimeters)

6 x 1.0 10 mm 8 6 11 8 8 6 11 8 6 x 1.0
8 x 1.25 13 mm 20 15 27 20 21 16 29 22 8 x 1.0
10 x 1.5 16 mm 39 29 54 40 41 30 57 42 10 x 1.25

12 x 1.75 18 mm 68 50 94 70 75 55 103 76 12 x 1.25

14 x 2.0 21 mm 109 80 151 111 118 87 163 120 14 x 1.5
16 x 2.0 24 mm 169 125 234 173 181 133 250 184 16 x 1.5
18 x 2.5 27 mm 234 172 323 239 263 194 363 268 18 x 1.5
20 x 2.5 30 mm 330 244 457 337 367 270 507 374 20 x 1.5
22 x 2.5 34 mm 451 332 623 460 495 365 684 505 22 x 1.5
24 x 3.0 36 mm 571 421 790 583 623 459 861 635 24 x 2.0
30 x 3.0 46 mm 1175 867 1626 1199 1258 928 1740 1283 30 x 2.0

Wrench

Size

Wrench

Size

Metric 8.8 Metric 10.9 Metric 8.8 Metric 10.9

N-m lbs-ft N-m lbs-ft N-m lbs-ft N-m lbs-ft

SAE 2 SAE 5 SAE 8

lbs-ft N-m lbs-ft N-m lbs-ft N-m

Coarse Thread Fine Thread

Marking on Head Marking on Head

MARKING ON HEAD

Diameter &

Thread Pitch

(Millimeters)

44 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

5/16 3/8 1/2 5/8 3/4 7/8

IN 1 7

2

34 5 6

MM 25 50 75 100 125 150 175

Metric Bolt Thread Sizes

8MM 18MM14MM12MM10MM 16MM

ABBREVIATIONS

AG ..............................................................Agriculture

ASABE.................... American Society of Agricultural &

Biological Engineers (formerly ASAE)

ASAE.......American Society of Agricultural Engineers

ATF ............................... Automatic Transmission Fluid

BSPP.............................British Standard Pipe Parallel

BSPTM ................British St andar d Pipe Taper ed Male

CV.....................................................Constant Velocity

CCW..............................................Counter-Clockwise

CW...............................................................Clockwise

F ......................................................................Female

FT............................. .................................Full Thread

GA .................................................................... Gauge

GR (5, etc.)...........................................Grade (5, etc.)

HHCS ........................................Hex Head Cap Screw

HT........................................................... Heat-Treated

JIC ....... ... ... . ...Joint Industry Council 37° Degree Flare

LH.................................................................Left Hand

LT...........................................................................Left

m.........................................................................Meter

mm................................................................Millimeter

M.......................................................................... Male

MPa.........................................................Mega Pascal

N.......................................................................Newton

NC......................................................National Coarse

NF ...........................................................National Fine

NPSM.....................National Pipe Straight Mechanical

NPT.......................................... National Pipe Tapered

NPT SWF.........National Pipe Tapered Swivel Female

ORBM ..........................................O-Ring Boss - Male

P...........................................................................Pitch

PBY......................................................Power-Beyond

psi..........................................Pounds per Square Inch

PTO..................................................... Power T ak e Off

QD....................................................Quick Disconnect

RH..............................................................Right Hand

ROPS...........................Roll-Over Protective Structure

RPM........................................Revolutions Per Minute

RT .......................................................................Right

SAE..........................Society of Automotive Engineers

UNC .....................................................Unified Coarse

UNF...........................................................Unified Fine

UNS......................................................Unified Special

Bolt Torque & Size Charts (Rev. 3/28/2007)

Appendix 45

INDEX

A

ADJUSTMENTS

Cutting Height 11
Levelling Mower 11
Tractor Top Link 12

ASSEMBLY

Dealer Set-Up Instructions
Initial Oil Fill 31
Optional Equipment

Chain Shielding
Front Roller 31
Quick Hitch Kit 32

29

31

D

DEALER CHECK LISTS

Delivery (Dealer’s Responsibility)
Pre-Delivery (Dealer’s Responsibility) 33

DEALER SERVICE

Blade Spindle

Assembly
Disassembly 22
Installation 23
Removal 22

Service 22
Blocking Method 22
Gearbox Repa ir 24

Disassembly 26

Drive Sheave Installation 27

Installation 27

Reassembly 26

Removal 25

Seal

Universal Joint

Assembly

Disassembly 27

Repair 27

23

Horizontal Shaft Seal Replacement
Installation 24
Replacement 24
Vertical Shaft Seal Rep lacement 25

28

G

GENERAL

Abbreviations
Bolt Size Chart 45
Bolt Torque Chart 44
General Information 4
Introduction 2
Specifications 4
Table of Contents 3

45

O

OPERATION

Attaching Mower to Tractor

10

33

25

Cutting Height Adjustment 11
Front Caster Arm Configuration 13
Front Caster Wheel Interference Check 13
Front Roller (Optional) 13
Levelling Mower 11
Mower Removal 14
Mowing Speed Recommended 10
Operating Technique 13

Tips 14

Operating Techniques

Uneven Terrain 14
Pre-Operation Check List (Owner’s Responsibility) 15
Recommended Uses 10
Storage 14
Tractor Stability 10
Tractor Top Link Adjustment 12

OWNER SERVICE

Belt

Installation

Replacement 18

Routing 18

Service 18
Blade

Assembly 19

Installation 19

Service 18

Sharpening 19
Blocking Method 16
Chain Shielding 19
Cleaning 19
Lubrication

Driveshaft 16

Information 16

Lubrication Points & Chart 17

18

P

PARTS

Index to Parts Lists

35

S

SAFETY

Blocking Method 16
Check Lists

Delivery (Dealer’s Responsibility)

Pre-Delivery (Dealer’s Responsibility) 33

Pre-Operation (Owner’s Responsibility) 15
Safety & Instructional Decals 8, 9
Safety Rules 5, 6, 7

33

T

TROUBLE SHOOTING

Belt Conditions
Mowing Conditions 20

21

46 Index

5WPMAN0511 (Rev. 2/10/2009)

NOTES

5WPMAN0511 (Rev. 5/9/2008)

Index 47

PART NUMBER

5WPMAN0511

©2006 Woods Equipment Company. All rights reserved. WOODS and the Woods logo are trademarks of Woods Equipment Company. Frontier
Equipment and the Frontier logo are trademarks of Deere & Company. All other trademarks, trade names, or service marks that appear in this
manual are the property of their respective companies or mark holders. Specifications subject to change without notice.