RM990 3 & P990 Rearmount Mowers !! Woods

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Rev. 3/14/2008

20944

RM990-3
P990-3

Tested. Proven. Unbeatable.

OPERATOR'S MANUAL

REARMOUNT
MOWERS

TO THE DEALER:
Assembly and proper installation of this product is the responsibility of the Woods® dealer. Read manual instructions
and safety rules. Make sure all items on the Dealer’s Pre-Delivery and Delivery Check Lists in the Operator’s Manual
are completed before releasing equipment to the owner.
The dealer must complete the Product Registration online at the Woods Dealer Website or complete the mail-in
form included with the Operator’s Manual. If using the mail-in form, the dealer is to return the prepaid postage portion to
Woods, give one copy to the customer, and retain one copy. Failure to register the product does not diminish
customer’s warranty rights.
TO THE OWNER:
Read this manual before operating your Woods equipment. The information presented will prepare you to do a better and
safer job. Keep this manual handy for ready reference. Require all operators to read this manual carefully and become
acquainted with all adjustment and operating procedures before attempting to operate. Replacement manuals can be
obtained from your dealer. To locate your nearest dealer, check the Dealer Locator at www.WoodsEquipment.com, or in
the United States and Canada call 1-800-319-6637.
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 authorized Woods dealer has trained mechanics, genuine Woods service parts, and the necessary
tools and equipment to handle all your needs.
Use only genuine Woods 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 term NOTICE is used to indicate that failure to observe can cause damage to equipment.
The terms CAUTION, WARNING, and DANGER are used in conjunction with the Safety-Alert Symbol (a triangle with
an exclamation mark) to indicate the degree of hazard for items of personal safety.

2 Introduction

Gen’l (Rev. 2/19/2008)

TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SAFETY RULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SAFETY DECALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
OWNER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
DEALER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
DEALER CHECK LISTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
PARTS LISTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
BOLT TORQUE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
BOLT SIZE CHART & ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 65
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
REPLACEMENT PARTS WARRANTY . . . . . . . . . . . . INSIDE BACK COVER
PRODUCT WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BACK COVER

LEA EL INSTRUCTIVO!

Si no lee Ingles, pida ayuda a
alguien que si lo lea para que le
traduzca las medidas de seguridad.

(Rev. 3/14/2008)
20944 (Rev. 9/2/2005)

Introduction 3

SPECIFICATIONS
MODEL

RM990-3 MOUNTED

P990-3 TOWED

Hitch

Three Point, Category 1

Towed

Cutting Width

90"

Cutting Height Range

1" - 8"

1" - 8-1/2"

Shipping Weight

930 lbs.

1,000 lbs.

Blade Speed (feet per minute)

15,569

Blade Speed (RPM)

1,926

Blade Spindles

Number of Blades

Universal Drive Series

ASAE Cat. 4

ASAE Cat. 3

Caster Wheels

13 x 5 x 10 Solid Rib Tire
or 18 x 19.5 x 8 Pneumatic Tires

-----

Wheels

-----

18 x 19.5 x 8
Rib Pneumatic Tires

Tractor PTO Speed RPM

540

Recommended Maximum
Tractor Horsepower

Mower Frame Thickness

7 GA

GENERAL INFORMATION
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 nature, due to unknown and varying
operating conditions. However, through experience
and these instructions, you should be able to develop
procedures suitable to your particular situation.

WARNING

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 manual, references are made to right
and left directions. These are determined by standing
behind the tractor facing the direction of forward travel.
Blade rotation is counter-clockwise as viewed from the
top of the mower.

■

Some illustrations in this manual show the
mower with safety shields removed to provide a
better view. The mower should never be operated
with any safety shielding removed.

4 Introduction

20944 (Rev. 9/2/2005)

SAFETY RULES
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
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.

Connect PTO driveline directly to power unit
PTO shaft. Never use adapter sleeves or adapter
shafts. Adapters can cause driveline failures due to
incorrect spline or incorrect operating length and
can result in personal injury or death.

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, maintenance 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.

TRAINING
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 available from
your dealer. To locate your nearest dealer, check
the Dealer Locator at www.WoodsEquipment.com,
or in the United States and Canada call 1-800-3196637.) Failure to follow instructions or safety rules
can result in serious injury or death.
If you do not understand any part of this manual
and need assistance, see your dealer.
Know your controls and how to stop engine and
attachment quickly in an emergency.

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 Safety Decals section for
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 front tractor
weights. Weigh the tractor and equipment. Do not
estimate.
Inspect and clear area of stones, branches, or
other hard objects that might be thrown, causing
injury or damage.

Operators must be instructed 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.

OPERATION

Never allow children or untrained persons to
operate equipment.

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.

Full chain or rubber 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
or rubber 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 mowing
condition. It is possible for objects to ricochet
and escape, traveling as much as 300 feet (92 m).

Make sure attachment is properly secured,
adjusted, and in good operating condition.

Do not operate or transport equipment while
under the influence of alcohol or drugs.

Make sure spring-activated locking pin or collar
slides freely and is seated firmly in tractor PTO
spline groove.

Always comply with all state and local lighting
and marking requirements.

PREPARATION
Check that all hardware is properly installed.
Always tighten to torque chart specifications
unless instructed otherwise in this manual.

RM_SR (Rev. 4/28/2006)

Keep bystanders away from equipment.
Never direct discharge toward people, animals,
or property.

Operate only in daylight or good artificial light.

Safety 5

SAFETY RULES
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Never allow riders on power unit or attachment.

MAINTENANCE

Keep hands, feet, hair, and clothing away from
equipment while engine is running. Stay clear of all
moving parts.

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.

Power unit must be equipped with ROPS or
ROPS cab and seat belt. Keep seat belt securely
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.
Always sit in power unit seat when operating
controls or starting engine. Securely fasten 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 suddenly 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 equipment immediately
upon striking an obstruction. Turn off engine,
remove key, inspect, and repair any damage before
resuming operation.

TRANSPORTATION
Power unit must be equipped with ROPS or
ROPS cab and seat belt. Keep seat belt securely
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.
Never exceed 20 mph (32.2 km/h) during transport.
Always comply with all state and local lighting
and marking requirements.
Never allow riders on power unit or attachment.
Do not operate PTO during transport.

Before performing any service or maintenance,
lower equipment to ground or block securely, turn
off engine, remove key, and disconnect driveline
from tractor PTO.
Do not modify or alter or permit anyone else to
modify or alter the equipment or any of its components in any way.
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 approaching for service.
Frequently check blades. They should be sharp,
free of nicks and cracks, and securely fastened.
Use a new Nylok blade bolt and cup washers
when you replace the blade. Do not substitute any
bolt for the special blade bolt. It is self-locking,
meeting the non-loosening requirements for this
application.
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 are
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 Safety Decals section for
location.)
Make sure shields and guards are properly
installed and in good condition. Replace if damaged.

Look down and to the rear and make sure area
is clear before operating in reverse.

STORAGE

Do not operate or transport on steep slopes.

Keep children and bystanders away from storage area.

Do not operate or transport equipment while
under the influence of alcohol or drugs.

6 Safety

Block equipment securely for storage.

RM_SR (Rev. 4/28/2006)

SAFETY & INSTRUCTIONAL DECALS
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Replace Immediately If Damaged!
11
P990
PULL-TYPE 11
7

P990
PULL-TYPE

9
12

13 - P990 Only
16
6

13 - P990 Only

1
7

7
15 - RM990 Only
CD3943F

10
2

12 - 20106 Red Rear Reflector

MODEL NO.

WARNING

2 - 18865

1 - Serial Number Plate

SERIAL NO.

Woods Equipment Company
Oregon, Illinois, U.S.A.

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.

4 - 18866

Allow no riders.

WARNING
DO NOT EXCEED PTO SPEED OF

540 RPM
PTO speeds higher than 540 RPM can cause
equipment failure and personal injury.

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 leak-

down, hydraulic system failures or mechanical component failures.

FALLING OFF OR FAILING TO BLOCK SECURELY CAN
RESULT IN SERIOUS INJURY OR DEATH.
18865--C

18866-D

20944 (Rev. 2/3/2006)

Safety 7

SAFETY & INSTRUCTIONAL DECALS
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Replace Immediately If Damaged!
3 - 18877

7 - 18864

DANGER

WARNING
TO AVOID SERIOUS
INJURY OR DEATH:
Read Operator's Manual (available
from dealer) and follow all safety
precautions.

ROTATING DRIVELINE
CONTACT CAN CAUSE DEATH

Keep all shields in place and in good
condition.

KEEP AWAY!

Operate mower from tractor seat only.

DO NOT OPERATE WITHOUT -

Lower mower, stop engine and remove
key before dismounting tractor.

All driveline guards, tractor and
equipment shields in place

Allow no children or untrained persons
to operate equipment.

Drivelines securely attached at both ends
Driveline guards that turn freely on
driveline

Do not transport towed or
semi-mounted units over 20 mph.

FAILURE TO OPERATE SAFELY
CAN RESULT IN
INJURY OR DEATH.

18864-C

BE CAREFUL!

18877-C

5 - 18867

DANGER
SHIELD MISSING

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 edges of decals causing
them to peel or come off.
Replacement safety decals can be ordered free from
your Woods dealer. To locate your nearest dealer,
check the Dealer Locator at
www.WoodsEquipment.com, or in the United States
and Canada call 1-800-319-6637.

DO NOT OPERATE
PUT SHIELD ON
18867--B

6 - 15502

WARNING
ROTATING COMPONENTS

CONTACT WITH ROTATING PARTS
CAN CAUSE SERIOUS INJURY.
15502--B

13 - 18868
15 - 18869

DANGER
SHIELD MISSING
Do not operate.
Put shield on.

DANGER
SHIELD MISSING
DO NOT OPERATE - PUT SHIELD ON

18869-B

Do not operate without cover in place.
Look and listen for rotation. Do not
open cover until all components have
stopped.

18868-B

8 - 19924

WARNING
HIGH-PRESSURE HYDRAULIC OIL LEAKS CAN PENETRATE SKIN
RESULTING IN SERIOUS INJURY, GANGRENE OR DEATH.
n Check for leaks with cardboard; never use hand.
n Before loosening fittings: lower load, release pressure, and
be sure oil is cool.

19924-B

n Consult physician immediately if skin penetration occurs.

8 Safety

20944 (Rev. 2/3/2006)

SAFETY & INSTRUCTIONAL DECALS
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Replace Immediately If Damaged!
9 - 19782

11 - 33347

10 - 15503

DANGER

GUARD MISSING.
DO NOT OPERATE.

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

GUARD MISSING.
DO NOT OPERATE.

thrown by blade.
Keep bystanders away.

33347E

Keep guards in place and in good condition.

BLADE CONTACT OR THROWN OBJECTS CAN
CAUSE SERIOUS INJURY OR DEATH.

DANGER

15503-C

16 - 1004114

DANG
NGER
ER
If shaft connection is visible, shield
is missing. Replace shield before
operating equipment.
1004114

20944 (Rev. 2/3/2006)

Safety 9

OPERATION
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 to
page 10. This mower is designed for light brush shredding and grass mowing. It is especially useful in cane,
berry, grape and vegetable crops for mowing and
shredding prunings. Recommended mowing speed for
most conditions is from two to five mph.

ATTACHING RM990-3 MOUNTED MOWER
TO TRACTOR
Hitch Point Distance and PTO Clearance

ADANGER
Full chain or rubber 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
or rubber 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 mowing
condition. It is possible for objects to ricochet
and escape, traveling as much as 300 feet (92 m).

AWARNING
Never allow children or untrained persons to
operate equipment.
Keep bystanders away from equipment.
Before servicing, adjusting, repairing or unplugging, stop tractor engine, place all controls in neutral, set park brake, remove ignition key, and wait
for all moving parts to stop.
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.

ACAUTION
Stop power unit and equipment immediately
upon striking an obstruction. Turn off engine,
remove key, inspect, and repair any damage before
resuming operation.
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.

10 Operation

Figure 1. PTO to Mounting Point Distance - RM990-3
The standard drive is intended for use with tractors that
have 18" to 21" between the end of the tractor PTO
shaft and the mounting pin holes on the lower lift arms
when they are horizontal (refer to Figure 1). If the distance is less than 18", the slip tubes of the PTO shaft
can bottom out. If the distance exceeds 21", there may
not be sufficient engagement when operating on
uneven terrain. Shorter or longer drives are available.
Contact your WOODS dealer for assistance.
Standard Category 1 mounting pins are used when
attaching the mower to the tractor. Check to be sure
the mounting pins are properly torqued to 300 lbs-ft.
Attach the mower hitch pins to the lower tractor lift
arms and secure.
Attach the tractor top link to mower top clevis. Connect
driveline to tractor PTO shaft. A standard 1-3/8" 6B
spline driveline with a QD yoke is used to connect
mower to tractor. Adjust top link. (See page 12.)
Attach the front driveline shield tether chain to the tractor to prevent driveline shield rotation.
Carefully raise mower and check for driveline clearance between drive shielding and front of mower
frame; a minimum of 1/2" clearance is required. Adjustment to tractor upper lift stop may be required to prevent driveline from coming in contact with mower
frame.

AWARNING
Make sure spring-activated locking pin or collar
slides freely and is seated firmly in tractor PTO
spline groove.

(Rev. 4/28/2006)
20944 (Rev. 2/3/2006)

Cutting Height Adjustment

AWARNING
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.

(A) should be at least 1/4" greater than location (B),
and not more than 1/2" greater than location (B).
Adjust the check chains, tailwheel and/or lower tractor
lift arms to maintain desired cutting height.
NOTE: Optional check chains and front gauge
wheels are available.

NOTICE
■

Avoid very low cutting heights. Blades striking
the ground 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.

AWARNING
Before working underneath, raise mower to
highest position and block securely. Blocking up
prevents mower dropping due to hydraulic leak
down, hydraulic system failures, or mechanical
component failures.

Before leveling unit that is equipped with pneumatic
tires, check air pressure. Follow manufacturer's guidelines on tire sidewall.
Level mower from side to side. Check by measuring
from mower frame to the ground at each front corner.
Adjust, using tractor 3-point arm leveling device. See
page 12.
Adjust cutting height with tractor 3-point arms and rear
caster wheel adjustment. The cutting height will be the
distance between the blade and the ground. The
blades are approximately 5" below the top of the
mower frame. To check cutting height, place a straight
edge along top edge of mower frame as shown in Figure 2. Measure from bottom of straightedge to the
ground at locations (A) and (B). Subtract 5" from measurement (B) to determine cutting height.

Figure 2. Cutting Height Adjustment
on RM990-3 Mounted Mower
Cutting Height Adjustment with Front & Rear
Caster Wheel
Place the front and rear adjustment in corresponding
lettered holes. Refer to the chart for approximate cutting height.

For best mowing results adjust the front of the mower
slightly lower than the rear. Measurement at location

Hole No.

Approximate Cutting Height

Hole No.

Approximate Cutting Height

1.00"

4.00"

1.50"

4.50"

2.00"

5.00"

2.50"

6.00"

3.00"

7.00"

3.5"

8.00"

Figure 3. RM990-3 Cutting Height Adjustment with Front Caster Wheel

20944 (Rev. 2/3/2006)

Operation 11

Top Link Adjustment
When the cutting height is adjusted, adjust tractor top
link until mower top link attachment point (A) is aligned
vertically with mower hitch pin (B).

Adjust the tractor drawbar to obtain the desired drawbar to hitch point distance. On some tractors, a drawbar kit must be used to obtain the required dimension.
Check with your tractor dealer if you encounter problems.

AWARNING
When attaching a pull-type unit to the tractor
drawbar, always use a high-strength drawbar pin.
The drawbar pin must have a device that will lock it
into position. Secure safety chain to attachment
and tractor.
Raise mower tongue to tractor drawbar height with jack
provided and attach with a 3/4" or larger high-strength
drawbar pin. Retain pin to keep it in place.

Figure 4. Top Link Adjustment - RM990-3

Tractor Stability

Connect mower driveline to tractor PTO shaft, making
sure spring-activated locking pin slides freely and is
seated firmly in tractor PTO spline groove.
When driveline is attached to tractor, attach front driveline shield tether chain to the tractor to prevent driveline shield rotation.

AWARNING
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 tractor
weights. Weigh the tractor and equipment. Do not
estimate.

AWARNING
Make sure spring-activated locking pin or collar
slides freely and is seated firmly in tractor PTO
spline groove.
Adjust drive shaft carrier bearing vertically in H-frame
until driveline is as straight as possible between tractor
PTO and mower gearbox.
Remove parking jack from tongue. Attach to storage
bracket on deck. Always attach jack to tongue to hold it
up when disconnecting it from tractor.

Cutting Height Adjustment
Place tractor and mower on a level surface. Check to
make sure tire pressure is correct and equal on tractor
and mower. The correct pressure for mower pneumatic
tires is 36 psi.

NOTICE

Figure 5. Tractor Stability - RM990-3

ATTACHING P990-3 PULL-TYPE MOWER
TO TRACTOR
Drawbar to Hitch Point Distance
Connect mower tongue to tractor drawbar. The mower
is shipped with a 1-3/8" PTO spline. The horizontal distance between the end of the tractor PTO shaft and the
drawbar hitch point should be 14". This distance must
not vary more or less than 1" or the drive may be damaged when turning.

12 Operation

■

Avoid very low cutting heights. Blades striking
the ground one of the most damaging shock loads
a mower can encounter. Allowing blades to contact
ground repeatedly, will cause damage to mower
and drive.
Adjust the mower front to back with an attitude rod.
Raise the mower front by turning the attitude rod nut in;
lower it by turning nut out. Run front of mower level
with rear, or no more than 1/2" lower than rear. Mower
cutting height is raised, lowered, and maintained with a

20944 (Rev. 2/3/2006)

manual ratchet adjustment link or optional hydraulic
cylinder.

___ Raise and lower equipment to make sure air is
purged from hydraulic cylinders and hoses.

An optional stroke control kit is available for use with
the optional hydraulic cylinder. When a desired cutting
height is pre-set and the stroke control kit is placed on
the cylinder rod, you can raise the mower and return
easily to the pre-set height.

___ Make sure tractor ROPS or ROPS CAB and seat
belt are in good condition. Keep seat belt
securely fastened during operation.

PRE-OPERATION CHECKLIST
(Owner Responsibility)
___ Review and follow all safety rules and safety
decal instructions on page 5 through page 9.
___ Check that all safety decals are installed and in
good condition. Replace if damaged.
___ Check that all shields and guards are properly
installed and in good condition. Replace if damaged.
___ Check that all hardware and cotter pins are properly installed and secured.
___ Check to ensure blades are sharp, in good condition, 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.
___ Before starting tractor, check all equipment driveline guards for damage and make sure they
rotate freely on all drivelines. Replace any damaged guards. If guards do not rotate freely on
drivelines, repair and replace bearings before
operating.
___ Make sure the driveline guards and tether chains
are in good condition. Guards must rotate freely
on driveline. Fasten tether chains as instructed to
the tractor and the equipment.
___ 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 “Service, Lubrication Information”.
Make sure the PTO slip joint is lubricated and that
the gearbox fluid levels are correct.
___ Set tractor PTO at 540 rpm.
___ Check that all hydraulic hoses and fittings are in
good condition and not leaking before starting
tractor. Check that hoses are not twisted, bent
sharply, kinked, frayed or pulled tight. Replace
any damaged hoses immediately.

20944 (Rev. 2/3/2006)

___ Before starting engine, operator must be in tractor seat with seat belt fastened. Place transmission in neutral or park, engage brake and
disengage tractor PTO.

STARTING AND STOPPING MOWER
Power for operating the mower is supplied by tractor
PTO. Do not exceed tractor manufacturer's rated PTO
speed of 540 rpm maximum. Know how to stop tractor
and mower quickly in case of an emergency.
Should mower become plugged, causing belt to slip,
immediately maneuver equipment into a previously cut
area and allow mower to clear accumulated material.
Continue running at least two minutes, allowing pulleys
to cool. Stopping the mower with belt in contact with a
very hot pulley will bake and ruin belt.

ACAUTION
Stop power unit and equipment immediately
upon striking an obstruction. Turn off engine,
remove key, inspect, and repair any damage before
resuming operation.

OPERATING TECHNIQUE
Proper ground speed will depend upon the terrain and
the height, type and density of material to be cut. Normally, ground speed will range from two to five mph.
Tall dense material should be cut at a low speed, while
thin medium-height material can be cut at a higher
ground speed.
Always operate tractor PTO at 540 rpm; this is necessary 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 tractor ground speed but maintain 540 rpm PTO
speed. The lower ground speed will permit grass to at
least partially rebound.
Under some conditions, grass will not rebound enough
to be cut evenly. In general, lower cutting heights give a
more even cut with less tendency to leave 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.

Operation 13

Tips

AWARNING
Inspect and clear area of stones, branches, or
other hard objects that might be thrown, causing
injury or damage.
Extremely tall material should be cut twice. Cut material higher the first pass. Then cut at desired height, at
90° to first pass.
Remember, sharp blades produce cleaner cuts and
require less power.
Analyze area to be cut to determine best procedure.
Consider height and type of material and terrain type:
hilly, level or rough.

AWARNING
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.

TRANSPORTING P990-3 MOWER
Either the standard ratchet adjustment link or optional
hydraulic cylinder and transport bar must be installed
when transporting mower.

Plan your mowing pattern to travel straight forward
whenever possible.

A transport bar, to be used in conjunction with the
hydraulic cylinder, is furnished with each P990-3
mower. It must be installed when the optional hydraulic
cylinder is used to control cutting height.

Optional Blade

Transport Bar Storage Position (Figure 6)

The mower is equipped with free-swinging suction type
blades as standard equipment when shipped from the
factory. If you are operating in a sandy area or where
high abrasive wear occurs and causes damage to the
fin of the standard suction type blade, an optional low
suction type blade is available.

When not in use, the transport bar (3) should be pivoted to the rear, away from the cylinder, and the lock
pin should be installed in the hole and secured with
hairpin cotter (5).

Optional Front Roller

Raise mower with hydraulic cylinder and pivot transport
bar (4) forward over cylinder rod (6). Install lock pin (3)
through hole in transport lock (7) and secure with hairpin cotter (2).

The tailwheels and side skids effectively reduce scalping in most cases. However, you may encounter areas
where the tailwheels and/or side skids drop into
depressions and allow center of mower to contact
ground and scalp. An optional front roller may be
installed to minimize scalping.

Engaging Transport Bar (Figure 7)

Uneven Terrain

AWARNING
Do not operate or transport on steep slopes.
Do not stop, start, or change directions suddenly on slopes.

Figure 6. P990-3 Transport Bar - Operating Position

14 Operation

20944 (Rev. 2/3/2006)

CLEANING
After Each Use
●

Remove large debris such as clumps of dirt, grass,
crop residue, etc. from machine.

●

Inspect machine and replace worn or damaged
parts.

●

Replace any safety decals that are missing or not
readable.

Periodically or Before Extended Storage
●

Clean large debris such as clumps of dirt, grass,
crop residue, etc. from machine.

●

Remove the remainder using a low-pressure water
spray.
1. Be careful when spraying near scratched or torn
safety decals or near edges of decals as water
spray can peel decal off surface.

Figure 7. P990-3 Transport Bar Raised Transport Position

Removing Mower from Tractor

2. Be careful when spraying near chipped or
scratched paint as water spray can lift paint.

Place tractor and mower on a solid level surface. Raise
mower and block securely.

3. If a pressure washer is used, follow the advice
of the pressure washer manufacturer.

Disengage PTO, set parking brake, stop engine and
remove key.

●

On pull-type units, place the jack on the tongue for
parking. Secure driveline up off the ground.

Inspect machine and replace worn or damaged
parts.

●

Sand down scratches and the edges of areas of
missing paint and coat with Woods spray paint of
matching color (purchase from your Woods
dealer).

●

Replace any safety decals that are missing or not
readable (supplied free by your Woods dealer).
See Safety Decals section for location drawing.

20944 (Rev. 2/3/2006)

Operation 15

OWNER SERVICE

AWARNING
Before servicing, adjusting, repairing or unplugging, stop tractor engine, place all controls in neutral, set park brake, remove ignition key, and wait
for all moving parts to stop.
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.

mower to transfer its weight to the jack stands, but do
not raise the rear wheels off of the ground.
When blocking, you must consider overall stability of
the unit. Just placing jack stands under the unit will not
ensure your safety. The working surface must be level
and solid to support the weight on the jack stands.
Ensure jack stands are stable both top and bottom, and
mower is approximately level. With full mower weight
lowered on jack stands, test blocking stability before
working underneath mower.

ACAUTION
Your dealer can supply original equipment
hydraulic accessories and repair parts. Substitute
parts may not meet original equipment specifications and may be dangerous.
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.
The information in this section is written for operators
who possess basic mechanical skills. Should you need
help, your dealer has trained service technicians available. For your protection, read and follow all safety
information in this manual.

BLOCKING METHODS
Jack stands, with a load rating of 1,000 pounds or
more, are the only approved blocking device for this
mower. A minimum of four jack stands, located under
the mower as shown in Figure 8, must be installed
before working underneath this unit. Do not position
jack stands under wheels, axles, or wheel supports
because these components can rotate.
Do not work underneath unless it is properly attached
to tractor (see Operation Section), the brakes set, key
removed, and the mower blocked securely. The
mounted unit will be anchored to minimize side to side
and front to rear movement. The pull-type unit will be
anchored front to rear.
For the mounted unit, tighten tractor lower 3-point arm
anti-sway mechanisms to prevent side to side movement.
For the pull-type unit, raise mower with the standard
ratchet adjustment link or the optional hydraulic cylinder. When the optional hydraulic cylinder is installed
the standard equipment transport bar must be pinned
in the raised position. With either the ratchet adjustment link or the optional hydraulic cylinder, lower

16 Owner Service

Figure 8. Jack Stand Placement
(Tractor and Connection Not Shown)

LUBRICATION INFORMATION (FIGURE 9)
Figure 9 shows the lubrication points. The accompanying chart gives the frequency of lubrication in operating
hours, based on normal conditions. Severe or unusual
conditions may require more frequent lubrication.
Do not let excess grease collect on or around parts,
particularly when operating in sandy areas.
Use SAE 90W gear lube in gearbox. Check gearbox
daily for evidence of leakage at both seals and the gasket between the housing and cover. If leakage is noted,
repair immediately. There may be a small amount of
lube emitted from the vent plug; this is not considered
leakage. Check the gearbox every day using the dipstick. Oil level is to be up to the ring but not over. Overfilling the gearbox will cause the excess gear lube to
blow out vent plug. The gear lube could then ruin the
belt.
Use a lithium grease of No. 2 consistency with a MOLY
(molybdenum disulfide) additive for all locations. Be
sure to clean fittings thoroughly before attaching
grease gun. When applied according to the lubrication
chart, one good pump of most guns is sufficient. Do not
overgrease.
Daily lubrication of the driveline slip joint is necessary.
Failure to maintain proper lubrication can result in

20944 (Rev. 2/3/2006)

damage to U-joints, gearbox, tractor PTO and/or the
mower driveline. Disconnect driveline from the tractor.

line in and out to distribute grease over the entire working area. Connect driveline to tractor.

To lubricate driveline slip joint, insert a grease gun
through shield slots (keep fingers out of slots to prevent
injury) and apply grease to grease fitting. Move drive-

Driveline shield bearings (12) must be greased every
eight hours. This operation requires a needle point
adapter for a grease gun. Insert the needle point into
the bearing hole and apply one good pump.

Ref No.

Description

Frequency

Ref No.
8

Front U-Joint

8 Hours

Rear U-Joint

8 Hours

Gearbox, Cover half of horizontal shaft
with SAE 90W gear lube

Tailwheel Pivot Arm

Tailwheel (Mounted Model)

Slip Joint Zerk (Mounted Model)

Tailwheels (Towed Model)

Description

Frequency

Driveline Carrier Bearing (Towed
Model)

10 Hours

Check
Daily

Slip Joint Zerk (Towed Model)

10 Hours

Center U-Joint (Towed Model)

10 Hours

8 Hours, Repack

Ratchet Adjustment Link

100 Hours

250 Hours

Shield Bearing

8 Hours

Left Blade Spindle

10 Hours

Center Blade Spindle

10 Hours

Right Blade Spindle

10 Hours

8 Hours

Figure 9. Lubrication Points

20944 (Rev. 2/3/2006)

Owner Service 17

Figure 10. Belt Installation

BELT REPLACEMENT (FIGURE 10)
One of the major causes of belt failure is improper
installation. Before a new belt is installed, check pulley
shafts and bearings for wear. Check pulley grooves for
cleanliness. Make sure spindles turn freely and without
wobble. If grooves require cleaning, use a cloth moistened with a non-flammable, non-toxic degreasing
agent or commercial detergent and water.
Avoid excessive force during installation. Do not use
tools to pry belt into pulley groove. Do not roll belt over
pulleys to install. This can cause hidden damage and
premature belt failure.

NOTICE
■

Use care when installing or removing belt from
spring-loaded idler in step 6. Springs store energy
when extended and, if released suddenly, can
cause personal injury.
Belt replacement is accomplished in these steps:
1. Loosen nut and swing belt guide (G) away from
pulley (F).
2. Loosen nut on eyebolt (H) to relax tension in
spring.
3. Slide belt under and around drive pulley (A).
4. Route belt around pulley (F), idler (E) and pulley
(D) as shown.
5. Make sure belt is on drive pulley (A) and route belt
around spring-loaded idler (C).
6. Grasp belt between spindle pulley (B), springloaded idler (C) and spindle pulley (D). Pull springloaded idler with belt and route belt over pulley (B).

18 Owner Service

7. Tighten nut on eyebolt (H). Make sure springloaded idler arm pivots freely with belt installed.
8. Set belt guide (G) 1/8" away from belt. Tighten to
85 lbs-ft.

SHEAR BOLT REPLACEMENT

NOTICE
■

Always use approved 1/2" NC x 3" grade 2
shear bolt as a replacement part. Using a hardened
bolt or shear pin may result in damage to driveline
or gearbox.
Rotate driveline to align holes in yoke and shaft. Install
shear bolt and secure with lock nut.

CHAIN OR RUBBER SHIELDING REPAIR

(Rev. 4/28/2006)
20944 (Rev. 2/3/2006)

Chain Shielding Repair
Inspect chain shielding each day of operation and
replace any broken or missing chains as required.

SIDE SKID REPAIR
Side skids are replaceable. Check them periodically
and replace as necessary.
1. Side skid bar
2. 3/8 x 1-1/4" Clipped
head bolt
3. 3/8 " Lock washer
4. 3/8" Hex lock nut

Figure 12. Blade Sharpening

Blade Removal
This mower is equipped with quick change blades.
Open blade access cover, loosen bolt (5) and rotate
blade lock (4) to allow for removal of blade pin (3).
Remove blade (2). Rotate spindle and remove opposite
blade in same manner.

Blade Installation
Figure 11. Side Skid Repair

BLADE SERVICING

ACAUTION
Your dealer can supply genuine replacement
blades. Substitute blades may not meet original
equipment specifications and may be dangerous.
Make certain all movement of equipment components has stopped before approaching for service.

Make sure to position blade so the cutting edge leads
in a counter-clockwise rotation. Install blade (2), then
place blade pin (3) in hole and rotate blade lock (4) to
secure blade. Tighten bolt (5). Rotate spindle and
install opposite blade in same manner. Repeat for
remaining spindles.
1. Blade spindle
2. Blade
3. Blade pin
4. Blade lock
5. 1/2 x 3/4" Nylock
bolt

Low suction and general purpose suction blades are
available. Use low suction blades in sandy areas where
abrasive action could cause excessive blade wear.
General purpose suction blades are recommended for
all other applications.
Inspect blades before operation for condition and
ensure they are securely fastened. Replace blades that
are bent, excessively nicked, worn or have any other
damage. Small nicks may be ground out when sharpening.
Replace blades on a spindle in pairs; an old blade and
a new blade may vary excessively in weight and cause
vibration. Never mix blade types.

Blade Sharpening
Follow the original sharpening pattern. Make an effort
to maintain balance on both blades from a spindle by
grinding the same amount from them. Blades that vary
excessively in weight can cause vibration.

(Rev. 4/28/2006)
20944 (Rev. 2/3/2006)

Figure 13. Blade Installation and Lock

WHEEL BEARING MAINTENANCE
RM990-3 ONLY
At least once each mowing season or 250 hours of
operation, whichever occurs first, the bearings in the
tailwheel should be removed, cleaned and repacked.
Replace bearings and cones if broken or worn excessively.
Install the wheel in the wheel yoke and tighten the inner
nut until there is a slight bearing drag (similar to automobile wheels). Hold the inner nut and tighten the lock
nut against it to maintain bearing adjustment.

Owner Service 19

TROUBLESHOOTING
MOWING CONDITIONS

PROBLEM

POSSIBLE CAUSE

SOLUTION

Grass cut higher in center of swath
than at edge

Height of mower higher at rear
than at front

Adjust mower height and attitude
so that mower rear and front are
within 1/2" of same height.

Grass cut lower in center swath
than at edge

Height of mower lower at rear than
at front

Adjust mower height and attitude
so that mower rear and front are
1/2" of same height.

Streaking conditions in swath

Conditions too wet for mowing

Allow grass to dry before mowing.

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

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

Dull blades

Sharpen or replace blades.

Material too high and too much
material

Reduce ground speed but maintain 540 rpm at tractor PTO, or
make two passes over material.
Raise mower for the first pass and
lower to desired height for the second and cut at 90° to first pass.
Raise rear of mower high enough
to permit material to discharge, but
not so high that conditions listed
above occur.

Grass wet

Allow grass to dry before mowing.
Slow ground speed of tractor but
keep engine running at full PTO
rpm.

Rear of mower too low, trapping
material under mower

Adjust mower height and attitude.

Material discharge from mower
unevenly; bunches of material
along swath

20 Troubleshooting

20944 (Rev. 2/3/2006)

TROUBLESHOOTING
BELT CONDITIONS
PROBLEM
Belt slippage

POSSIBLE CAUSE

SOLUTION

Mower overloading; material too
tall or heavy

Reduce tractor ground speed but
maintain full PTO rpm. Cut material twice, one high pass and then
mow at desired height. Cut a partial swath.

Oil on belt from over lubrication

Be careful not to over lubricate,
clean lubricant from belt and pulleys with clean rag, replace oilsoaked belt.

Belt hung up or rubbing

Check belt for free travel in pulleys
and belt guides, check under
mower and around blade spindle
shafts for wire, rags, or other foreign materials; clean all materials
from under mower.

Belt misaligned or belt rubbing
guide

Re-align belt or guide, be sure belt
does not rub any other part while
running.

Pulley misalignment

Inspect to ensure belt is running in
center of backside idler, shim idler
as necessary to align.

Pulley misalignment

Re-align.

Damaged belt

*Replace belt.

Foreign object in pulley grooves

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 damage

*Replace belt.

Belt breakage

High shock loads

Avoid abusive mowing, avoid hitting the ground or large obstructions.

Belt came off drive

Check drive pulley for foreign
material in grooves, avoid hitting
solid objects or ground.

Frayed edges on cover

Belt rollover

* Check belt for damage by laying it flat on the floor. If belt does not lie flat (has humps or twists), which indicates
broken or stretched cords, it must be replaced.

20944 (Rev. 2/3/2006)

Troubleshooting 21

DEALER SERVICE
The information in this section is written for dealer service personnel. The repairs described require special
skills and tools. If your shop is not properly equipped or
your mechanics are not properly trained in this type of
repair, you may be time and money ahead to replace
complete assemblies.

AWARNING
Before servicing, adjusting, repairing or unplugging, stop tractor engine, place all controls in neutral, set park brake, remove ignition key, and wait
for all moving parts to stop.

mower to transfer its weight to the jack stands, but do
not raise the rear wheels off of the ground.
When blocking, you must consider overall stability of
the unit. Just placing jack stands under the unit will not
ensure your safety. The working surface must be level
and solid to support the weight on the jacks stands.
Ensure jack stands are stable both top and bottom, and
mower is approximately level. With full mower weight
lowered on jack stands, test blocking stability before
working underneath mower.

Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.

ACAUTION
Make certain all movement of equipment components has stopped before approaching for service.
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 METHODS
Jack stands, with a load rating of 1,000 pounds or
more, are the only approved blocking device for this
mower. A minimum of four jack stands, located under
the mower as shown in Figure 14, must be installed
before working underneath this unit. Do not position
jack stands under wheels, axles, or wheel supports
because these components can rotate.
Do not work underneath unless it is properly attached
to tractor (see Operation Section), the brakes set, key
removed, and the mower blocked securely. The
mounted unit will be anchored to minimize side to side
and front to rear movement. The pull-type unit will be
anchored front to rear.
For the mounted unit, tighten tractor lower 3-point arm
anti-sway mechanisms to prevent side to side movement.
For the pull-type unit, raise mower with the standard
ratchet adjustment link or the optional hydraulic cylinder. When the optional hydraulic cylinder is installed
the standard equipment transport bar must be pinned
in the raised position. With either the ratchet adjustment link or the optional hydraulic cylinder, lower the

22 Dealer Service

Figure 14. Jack Stand Placement
(Tractor and Connection Not Shown)

BLADE SPINDLE
Blade Spindle Repair Tips
As a reference point, the grease fitting is in the top portion of the spindle housing.
To minimize wear, the bearing cups, cones and sleeves
are press fit to the shaft and will require a press or similar device for removal.
When disassembling, support housing casting to prevent damage.
Remove bearing cups by placing a punch in housing
slots and driving cup out. Alternate punch positions
from side to side. Use care to prevent housing damage.
Permatex 3-D Aviation Form-A-Gasket® or equivalent
is recommended as a sealant for spindle repair.

Blade Spindle Removal
Remove belt. Remove blades from spindle. Remove
bolt and washer from top of spindle shaft.
Remove split taper bushing (located on top of pulley)
by removing the two bolts and inserting them into the
threaded holes in bushing flange. Tighten alternately to
remove split taper bushing.

20944 (Rev. 2/3/2006)

Remove key and pulley. Remove the four bolts and
nuts attaching spindle to mower frame and remove
spindle.
Store bushing, pulley and all hardware for reinstallation.

Blade Spindle Assembly
Bearing cups and cones are designed to work together.
It is important to position them so bearing cone taper
mates with bearing cup taper. See Figure 15.
Lubricate new cups (6) with a light oil. Place them in
spindle housing (5) so they will mate with cones (4).
Seat cups (6) against machined shoulder of housing
with a press or by placing a large soft drift on the flat lip
and driving them into housing.
Pack bottom bearing cone (4) with grease and place it
into housing against bearing cup (6).

NOTICE
■

Bearing failure is often a result of improper seal
installation and positioning. Follow instructions
carefully.
Lightly coat housing area where seals seat with Permatex or equivalent.
Lightly lubricate seal, locate spring and place seal
squarely on housing with spring toward housing center.
Select a pipe or tubing with an outside diameter that
will set on outside seal edge. One that is too small will
bow seal cage.
Carefully press seal into housing, preventing distortion
to metal seal cage. Seal should seat firmly and
squarely against machined housing shoulder.
Make sure seal lip did not roll under.

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.

Blade Spindle Complete
Sleeve
Seal
Bearing Cone
Spindle Housing with Cups
Bearing Cup
Grease Fitting
Flat Washer
Spindle Shaft and Crossbar
Blade Lock
QD Blade Pin
1/2 x 3/4" Nylock Bolt
Blade

Distortion to seal cage or seal lip damage will cause
leakage. Damaged seals must be replaced.

Figure 15. Blade Spindle Assembly

NOTICE

Blade Spindle Disassembly
Support housing and press blade carrier and shaft (9)
out. Remove seals, bearing cones and cups from housing. See Figure 15.

Place housing assembly over shaft and blade center
(9) and carefully guide over shaft while pressing shaft
into bearing cup and cone. Assembly should seat firmly
against step in shaft.
Fill housing cavity with a lithium grease of No. 2 consistency with a MOLY (molybdenum disulfide) additive.
Pack top bearing cone (4) with grease and place it
(taper down) on shaft. Place sleeve (2) on shaft and
press bearing onto shaft until free play is removed and
there is a slight drag (similar to adjusting automobile
wheel bearings). Check by turning housing on shaft; it
should turn freely.

■

Bearing adjustment is set by pressing sleeve
against bearing until proper adjustment is attained.
Adjustment is maintained by seating split taper
bushing against sleeve.
Adjusting bearings too tightly will shorten their life.
Should you overtighten them, hold housing and rap top
of shaft with a lead hammer to loosen bearings. Adjust
to obtain proper setting.

20944 (Rev. 2/3/2006)

Dealer Service 23

Proper bearing adjustment is essential to good bearing
life.
Lightly lubricate top seal, locate spring and place seal
squarely on housing with spring up away from housing.
Follow installation instructions given for bottom seal.
Top seal should be flush with, to 1/16" above, housing.

Blade Spindle Installation
Insert spindle through bottom of mower, positioning
grease fitting outward on outer spindles and to the rear
on center spindle. Secure to deck with four bolts and
flange lock nuts.
Place belt pulley over spindle shaft and seat split taper
bushing against spindle sleeve. Place flat washer and
bolt into threads of spindle shaft and torque to 35 lbs-ft.
Place split taper bushing bolts into threaded holes of
pulley and tighten alternately to 12 lbs-ft., securing pulley to bushing.
Reinstall blades and belt.

WHEEL SPINDLE REPAIR
(For Pull-Type Mowers Only)

1. Yoke
2. Journal Cross
3. Seal

4. Snap Ring
5. Cup and Bearings
6. Yoke

Figure 16. U-Joint Exploded View
with Internal Snap Rings

Wheel spindle repair is accomplished in a manner similar to blade spindle repair. Refer to the wheel spindle
parts list and apply the repair techniques outlined in
Blade Spindle Disassembly and Assembly (page 23).
Adjustment is set and maintained with the slotted hex
nut and cotter key.

UNIVERSAL JOINT REPAIR
Two different style driveline U-joints are used. The
repair procedure is basically the same. One has internal snap rings (Figure 16); the other has external snap
rings (Figure 17). Determine which type you are repairing and remove all four snap rings.

1. Yoke
2. Cup and Bearing

3. Snap Ring
4. Journal Cross

Figure 17. U-Joint Exploded View
with External Snap Rings

24 Dealer Service

20944 (Rev. 2/3/2006)

U-Joint Disassembly
1. Remove snap rings from inside or outside of yokes
in four locations. (Figure 18 only shows the style
with internal snap rings.)

Figure 20.

Figure 18.
2. With snap rings removed, support drive in vise,
hold yoke in hand and tap on yoke to drive cup up
out of yoke. See Figure 19.

4. Place universal cross in vise as shown in Figure 21
and tap on yoke to remove cup. Repeat step three
for final removal. Drive remaining cup out with a
drift and hammer.

Figure 19
3. Clamp cup in vise as shown in Figure 20 and tap
on yoke to completely remove cup from yoke.
Repeat steps two and three for opposite cup.
Figure 21.

20944 (Rev. 2/3/2006)

Dealer Service 25

U-Joint Assembly
1. Place seals securely on bearing cups (on internal
snap ring style only).
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.
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.
Tap yoke to aid in process.
2. Seat cups by placing a drift or socket (slightly
smaller than the cup) on cup and rapping with a
hammer. See Figure 22. Install snap ring and
repeat on opposite cup.
3. Repeat steps one and two to install remaining cups
in remaining yoke.
Move both yokes in all directions to check for free
movement. Should movement be restricted, rap on
yokes sharply with a hammer to relieve any tension. Repeat until both yokes move in all directions
without restriction.

Leakage can occur at top cover and at shaft seals.
Leakage problems should be corrected immediately to
prevent damage to drive belt from gearbox oil.
Always clean any spilled lubricant with a cloth moistened with a non-flammable, non-toxic degreasing
agent or commercial detergent and water. Be sure to
clean pulley grooves.
The sealants recommended for gearbox repair are Permatex Aviation 3D Form-A-Gasket® or Loctite 515
Gasket Eliminator®.

Leakage Repair
To repair top cover leakage, clean top cover and housing sides, then remove cover. Remove old sealant from
cover and housing.
Apply sealant to top cover and replace. Retorque housing bolts.
Horizontal seal leakage should be repaired by replacing the seal. The gearbox should be removed from the
mower to accomplish this. Remove old seal with care
to prevent damage to seal bore and shaft. Sealant
should be applied to the seal bore before installing the
new seal. The new seal should be seated squarely in
the bore against snap ring. Press seal into place with a
piece of pipe or tubing that sets against the outside
edge of the seal. Tubing with an outside diameter that
is too small will bow seal cage and ruin the seal.

Removing Gearbox from Mower
Remove belt and driveline shields.
Remove rear driveline shield bearings and remove
shield. Remove snap ring from gearbox shaft. Remove
shear bolt from end yoke and remove driveline.
Remove drive belt from drive sheave.
Remove gear stand from mower.
Remove drive sheave from mower by removing bolts
from split taper bushing and turning them into threaded
holes on bushing flange. Tighten evenly, forcing the
bushing and drive sheave apart.
Remove gearbox from gear stand.

Gearbox Disassembly
(S/N 788882 and prior, Figure 23)
Figure 22.

GEARBOX MAINTENANCE
Read all of this section before starting any repair. Many
steps are dependent on each other.
Check gearbox for leakage and shaft side and end
play. If excessive shaft play is found, disassemble
gearbox and inspect bearings and shafts.

26 Dealer Service

NOTE: A five ton press will be required for vertical gear
shaft removal.
Remove top cover (12) and drain all gear lube.
Clamp gearbox upside-down in a large vise. Place a
long 1/2" rod or punch through the horizontal shaft
shear bolt hole to prevent shaft rotation. Remove stake

20944 (Rev. 2/3/2006)

nut (19). If nut is too tight to remove with a spanner
wrench, loosen with a punch and hammer.

end of vertical gear shaft (14) with a shot hammer or
equivalent.

Carefully remove vertical shaft seal (18) to prevent
damage to shaft threads and seal bore.

Install O-ring (17) into groove on vertical gear shaft (14)
next to bearing cone (15). Place a small bead of gasket
sealer on top of O-ring.

Remove gearbox from vise. Use care when removing
horizontal shaft seal (1) and retaining ring (2) to prevent damage to shaft seal surface and housing bore.
Place puller (20) over horizontal shaft (6) and insert a
1/2" bolt or rod through horizontal shaft shear bolt hole.
Tighten puller bolts evenly to remove shaft from housing.
Place housing upside-down in a press and remove vertical shaft (14) by pressing through the top of the housing. Remove bearing cone (15) from vertical shaft (14)
with a spreader. Remove all cups from housing with a
puller or by carefully driving them out with a punch.
Inspect gears for excessive wear. Gears are forged
and surfaces will appear rough, even when new. Some
wear is normal. Gears will show more wear on the
loaded side and the pattern should be smooth.
Inspect both gear shafts and stake nut for grooves,
nicks or bumps where seals seat. Replace if damage
cannot be repaired by resurfacing with emery cloth.
Clean gearbox housing and inspect for damage.
Replace if cracks are found.

Gearbox Assembly

Use the proper size tubing to press against the outside
edge of seal to prevent seal damage. Apply gasket
sealant to seal bore and press output shaft seal (18)
into housing until it seats against housing shoulder.
Coat inner portion of seal with grease.
Thread stake nut (19) onto shaft (14) in through seal
(18). Tighten until nut is snug against bearing cone
(15). Use a punch to stake the lip of stake nut (19) into
shaft (14) keyway.
Insert shaft (6) through top of housing out through horizontal hole, then set bearing (7) into cup (8). Press
bearing (5) onto gear shaft (6). Do not use excessive
force to seat bearing.
Place bearing cup (4) over horizontal shaft (6) and
press into housing until there is a slight drag on bearings when shaft is rotated (similar to setting automobile
front wheel bearings). When you have bearings
adjusted, select shims from shim kit (3) and place on
top of bearing cup (4) until they are flush with bottom of
snap ring groove in horizontal shaft (6), then install
snap ring (2).

(S/N 788882 and prior, Figure 23)

Apply gasket sealant to housing seal bore and press
seal (1) into housing until it seats against snap ring or is
flush with housing.

Press cups (8 & 16) into housing until they seat tightly
against machined shoulders.

Apply gasket sealant to top of housing flange, replace
top cover and secure with bolts (10) and washers (9).

Press bearing cone (15) onto vertical gear shaft (14)
and seat it against gear.

Attach gearbox to gear stand and torque mounting
bolts.

Insert vertical gear shaft into housing. Invert housing in
a press and place supports under gear to hold bearing
cone (15) against cup (16). Press bottom bearing cone
(15) onto shaft until all free play is removed and there is
a slight drag when rotating housing on shaft (similar to
setting automobile front wheel bearings). If bearings
are too tight, loosen by holding housing and rapping on

Remove the dipstick and pour in one quart of gear
lube. Wait five minutes and add an additional pint and
one half. Allow an additional five minutes for the lube to
flow through the bearings, then check to make sure
half of the horizontal gear shaft is covered. Replace the
dipstick.

20944 (Rev. 2/3/2006)

Dealer Service 27

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.

1.38 x 2.56 x .38" Seal
Retaining ring
Shim washer kit
Bearing cup
Bearing cone
30-Tooth gear and horizontal shaft
Bearing cone
Bearing cup
3/8" Lock washer
3/8 x 3/4" Bolt
1" Vented pipe plug (used prior to S/N 2000)
Gearbox cover
Housing
17-Tooth gear and vertical shaft
Bearing cone
Bearing cup
O-Ring
Double lip seal
Stake nut
Puller
Puller bolts
Dipstick (used on SN 2000-788882)
O-Ring (used on SN 2000-7888882)

Figure 23. Gearbox Assembly (SN 788882 and Prior)

Gearbox Disassembly
(Units after S/N 788882, Figure 24)
Remove gearbox from cutter as follows: Disconnect
and remove the rear driveline from the gearbox.
Remove vent plug (27) and siphon gear lube from
housing through this opening. Remove cotter pin,
washer, and nut from vertical shaft and remove crossbar. Remove the four bolts that hold the gearbox on the
cutter.
Remove 3/8" plug from side of gearbox and pour out
gear oil.

Remove top cover (25) from housing and gear (1) from
inside housing.
Remove oil seal (22) from front of housing (to be
replaced). Remove snap ring (12) and shim (15) from
front of housing.
Support housing in vise in a horizontal position. The
castle nut (17), cotter pin (28), washer (18), and hub
(24) are already removed with the stump jumper/crossbar. Remove the snap ring (10), washer (19), and seal
(21).

Remove oil cap (23) (to be replaced), snap ring (12),
and shim (15) from input shaft (3).

Remove cotter pin (11), castle nut (16), and washer
(20) from output shaft (4). Remove output shaft by
using a punch and hammer; tap on the top to drive
down.

Support gearbox in hand press and push on the input
shaft (3) to remove bearing (9) and spacer (14).

Remove gear (5) and shim (15) from inside housing.
Remove bearing (7) by using a punch and hammer

28 Dealer Service

20944 (Rev. 2/3/2006)

from the top, outside the housing. Support housing
upside down (top cover surface) and remove bearing
(6) by using a punch and hammer from the bottom side
of the housing.
Inspect gears for broken teeth and wear. Some wear is
normal and will show on loaded side. Forged gear sur-

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
25.
26.
27.

faces are rough when new. Check that wear pattern is
smooth.
Inspect vertical and horizontal shafts for grooves,
nicks, or bumps in the areas where the seals seat.
Resurface any damage with emery cloth. Inspect housing and caps for cracks or other damage.

Crown gear
Gearbox housing
Input shaft
Output shaft
Gear pinion
Bearing cup & cone
Bearing cup & cone
Bearing cup & cone
Ball bearing
Internal retainer ring
Cotter pin
Snap ring
Snap ring
Spacer
Shim kit
Castle nut
Castle nut metric M24 x 2
Protective washer
21 x 37 x 3 Washer
25 x 48 x 2.5 Washer
Metric seal 40 x 80 x 12
Oil seal
Oil cap
Top cover
M8 x 16 Bolt
Vented plug

Figure 24. Gearbox Assembly (After SN 788882)

Gearbox Assembly
(Units after SN 788882, Figure 24)
NOTE: Repair of this gearbox is limited to replacing
bearings, seals, and gaskets. Replacing gears, shafts,
and a housing is not cost effective. Purchasing a complete gearbox is more economical.
Clean housing, paying specific attention to the areas
where gaskets will be installed. Wash housing and all
components thoroughly. Select a clean area for gearbox assembly. Replace all seals, bearings, and gaskets. All parts must be clean and lightly oiled before
reassembling.

20944 (Rev. 2/3/2006)

Insert output bearings (6 & 7) in the housing, using a
round tube of the correct diameter and a hand press.
Slide output shaft (4) through both bearings (6 & 7)
until it rests against bearing (6). Slide shim (15) over
output shaft (4). Press gear (5) onto output shaft (4)
and secure with washer (20), castle nut (16), and cotter
pin (11).
Apply grease to lower seal lips (21) and press seal (21)
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. Insert protective washer
(19) by hand. Install snap ring (10) and position it

Dealer Service 29

together with dual lip seal (21) by pressing into position. Verify that snap ring is seated correctly.
Press bearing (8) into the housing, using a round tube
of the correct diameter and a hand press. Secure with
shim (15) and snap ring (12). Secure snap ring (13) on
input shaft (3) if not already secure.
Place gear (1) through top of housing and align gear
(1) and gear (5) so that gear teeth are a match. While
holding gear (1) in place, slide input shaft (3) through
gear (1) and bearing (8). Align splines on shaft (3) and
gear (1).
Slide spacer (14) over input shaft (3) and press bearing
onto input shaft (3), using a round tube of the correct
diameter and a hand press. Slide shim (15) over input
shaft (3) and secure with snap ring (12).
Check input shaft end float by moving the input shaft
(3) by hand. If end float is higher than 0.012", insert
shim between input shaft (3) and rear bearing (8).
Repeat until end float is less than 0.012". Check rotational torque by hand. The torque should be less than
2.2 lbs.-inch. Check that the gear backlash is between
0.006" and 0.016". You should not have to adjust the
backlash.

Drive Pulley Installation
Invert gear stand.
Install drive pulley and split taper bushing with key on
gearbox vertical shaft.
The distance between the centerline of the lower pulley
and the bottom of the gear stand is critical. Place a
straightedge along the bottom of the gear stand and
measure from it to the centerline of the pulley. This
measurement should be 2.35", plus or minus .03". Variation from this dimension could cause belt misalignment and premature belt failure. See Figure 25.
Tighten the bolts in the split taper bushing alternately
until they are torqued to 12 lbs-ft. Check the dimension
when tightening is complete; remove and realign if the
dimension was not held.
Install the gear stand on the mower frame.
Install the belts, driveline and driveline shielding.

Press in input oil seal (22), using a tube of the correct
diameter. Be careful not to damage the seal lip. Press
oil cap (23) on to cover the rear of housing, using a
tube of the correct diameter.
Check gearbox housing 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.
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.

30 Dealer Service

Figure 25. Drive Pulley Installation

20944 (Rev. 2/3/2006)

ASSEMBLY

ACAUTION

NOTICE
■

Gearbox was not filled at factory. It must be
serviced before operating mower. Failure to service
will result in damage to the gearbox. See page 16.
The mower is shipped partially assembled. Assembly
will be easier if the components are aligned and loosely
assembled before tightening hardware. Recommended
torque values for hardware are located on page 67.
Select a suitable working 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.

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.

Rear Driveline Installation

DEALER SET-UP INSTRUCTIONS

Attach counter-cone shield (6) over gearbox output
shield (7) using four 5/16" cap screws (3) OR M8 cap
screws (4) and lock washers (5). See Figure 26.

Assembly of the mower is the responsibility of the
WOODS dealer. It should be delivered to the owner
completely assembled, lubricated, and adjusted for
normal conditions.
The following instructions apply to the assembly of both
the RM990-3 and the P990-3, unless otherwise noted.

RM990 Only

Attach implement end of driveline (1) to gearbox output
shield (7).
Fasten tether chain to bracket (8) as shown, securing
with left front gearbox mounting bolt. Chain must be
loose enough to allow full joint articulation.

Complete the checklists on page 40 when assembly is
complete.
1.
2.
3.
4.
5.
6.
7.
8.

Driveline
Shield Retainer
Screw, HHCS 5/16" x 3/4
Screw, HHCS M8 x 1.25 x 20
Washer, 5/16" Standard
Counter-Cone Shield
Gearbox Output Shield
Tether Chain Bracket

Figure 26. Rear Driveline Installation - RM990

20944 (Rev. 2/3/2006)

Assembly 31

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
10.
11.
12.
13.
14.

Rear drive shield
Driveline
Retaining ring (SN 788882 and prior)
1/2" Hex lock nut (SN 788882 and prior)
1/2 x 3" Shear bolt (SN 788882 and prior)
Gearbox input shaft
Left drive shield bracket
Gearbox shield
Right drive shield bracket
3/8 x 1" Bolt (SN 788882 and prior)
M8 x 1.25 x 25 Bolt (after SN 788882)
3/8" Lock washer
3/8" Flanged nut
Tether chain
Tether chain bracket

Figure 27. Rear Driveline Installation - P990
P990 Only
Remove drive shield (1) from the driveline. Place the
yoke horizontally in a vise. Firmly pull shield backward
while pushing each of the three bearing tabs down to
release them. See Figure 27.
To prevent gearbox seal damage, carefully push driveline yoke onto gearbox input shaft until it contacts the
housing. Install retaining ring (3) and pull driveline forward.
Align driveline yoke and gearbox input shaft holes and
install shear bolt (5). Then install and tighten nut (4).

32 Assembly

Install drive shield (1) by aligning the three shield holes
with the three bearing tabs and pushing shield on firmly
to ensure the bearing tabs all engage.
Remove both front gearbox top cover bolts and lock
washers (10 & 11). Place left and right drive shield
brackets (7 & 9) on gearbox top cover and secure with
bolts and lock washers (10 & 11). Attach gearbox
shield (8) to shield brackets with flanged nuts (12).
Fasten tether chain (13) loosely (allowing greatest joint
articulation) to bracket (14) on left front gearbox mounting bolt.

20944 (Rev. 2/3/2006)

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.

5/8 x 3-1/2" Bolt
5/8" Flat washer
.64 x 1.00 x 2.09" Sleeve
Hitch pin bracket
A-frame bar
Category 1 mounting pin
5/8" Hex nut
1/2 x 6" Bolt
3-Point brace bar
1/2 Schedule 40 x 2-3/4" pipe
Top link clevis
1/2" Flanged hex lock nut
PTO Hanger bracket

Figure 28. RM990-3 Hitch Installation

RM990-3 HITCH INSTALLATION
(Figure 28)
The RM990-3 is shipped with Category 1 hitch pins in
the shipping location. Remove bolt (1) and hitch pin
bracket (4). Remove the hitch pin (6) from the shipping
location and place it in the end hole. Insert the hitch pin
bracket (4) into the mast plate as shown. Slide sleeve
(3) through holes flush with outside of mast plate and
secure with bolt (1), washers (2), and hex lock nut.
Repeat for other side.

20944 (Rev. 2/3/2006)

Remove bolt (8) and assemble 3-point brace bars (9)
on outside of A-frame bars (5). Re-install bolt (8)
through bars, spacer and top-link clevis (11).
Tighten all hitch assembly hardware. (See torque chart
in Operator’s Manual.)
Install PTO hanger bracket (13) to upper mast assembly. Secure with flange lock nut (12). Do not overtighten lock nut. PTO hanger bracket should be able to
rotate freely out of the way when the mower is in operation.

Assembly 33

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.

Wheel yoke assembly
Attitude rod
1-1/4 x 3-1/4" Pin
1-5/16 x 1-3/4 x 2-1/8" Sleeve
3/4 x 3/4" Pipe
3/4" Lock nut
Ratchet
5/8 x 2" Bolt
5/8 Hex lock nut GR5
5/8 Flat washer
Figure 29. P990-3 Wheel Yoke Installation

P990-3 Wheel Yoke Installation

Attach parking jack (21) to tongue (1) as shown.

Remove tongue from wheel yoke. See Figure 29.

Install ratchet adjustment link (7) between the tongue
and height adjustment post on wheel yoke using pins
provided with adjustment link. The optional hydraulic
cylinder may be installed in place of the adjustment link
(7).

Loosen the nuts on bolts (8) and pivot the wheel yoke
(1) to the rear. Install bolt (8) in each mounting bracket
and flat washers (10), secure nut (9). Tighten the hardware.
P990-3 Attitude Rod and Height Adj. Installation
Place sleeve (4) between attitude rod lugs on wheel
yoke. Insert pin (3) through sleeve (4) and align the
holes. Insert attitude rod (2) through these holes. See
Figure 29.
Place pipe spacer (5) over attitude rod (2) and start
lock nut (6) on rod.
P990-3 Tongue & H-Frame Installation
Place washer (17) and sleeve (18) on bolt (16). See
Figure 30.
Place tongue assembly (1) into mast plates on mower
frame and insert bolt, washer and sleeve assembly to
hold in place. Repeat for opposite side.
Place an additional washer (17) on bolt (16), then a
lock washer (19) and nut (20). Repeat for opposite side
and tighten hardware.

34 Assembly

Connect attitude rod (5) to tongue (1), as shown, with
clevis pin (15) and cotter pin (6).
Attach H-frame (2) to tongue (1), as shown, with clevis
pin (7) and two cotter pins (6).
Apply grease to all sides of rear driveline and slide the
rear portion of the front driveline (25) onto it.
Attach carrier bearing housing (3) into a set of H-frame
adjustment holes with clevis pin (8) and cotter pin (6).
Final adjustment will be required when mower is
attached to tractor.
Attach front drive shield (4) to carrier bearing housing
(3) with bolts (13) and lock washers (14).
Place spacer (11) between H-frame as shown and
secure with bolt (12), lock washer (10) and nut (9).
Attach driveline shield tether chains (23 & 24) to Hframe (2). Front tether chain (22) will be attached to
tractor.

20944 (Rev. 2/3/2006)

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.

Tongue assembly
H-Frame
Carrier bearing housing
Drive shield
Attitude rod
3/16 x 1" Cotter pin
5/8 x 5-21/32" Clevis pin
1/2 x 5-3/4" Clevis pin
1/2" Heavy hex nut
1/2" Heavy lock washer
1/2 x 3-9/16" Pipe
1/2 x 5-1/2" Bolt
3/8 x 1" Bolt

14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.

3/8" Lock washer
5/8 x 2-1/4" Clevis pin
5/8 x 3-1/2" Bolt
5/8" Flat washer
.64 x 1 x 2" Sleeve
5/8" Lock washer
5/8" Hex nut
Parking jack
Front tether chain
Middle tether chain
Rear tether chain
Driveline

Figure 30. P990-3 Tongue & H-Frame Installation

20944 (Rev. 2/3/2006)

Assembly 35

1.
2.
3.
4.
5.
6.

Right rear shield assembly
Left rear shield assembly
3/8 x 1" Carriage bolt
3/8" Flanged hex lock nut
Left front shield assembly
Right front shield assembly
Figure 31. Chain Shielding Installation

Chain Shielding Installation
Chain shielding is assembled. Attach to mower as
shown. See Figure 31.

OPTIONAL EQUIPMENT INSTALLATION
Optional Hydraulic Cylinder and Standard
Transport Bar Installation for P990-3

36 Assembly

inder is used to replace the ratchet adjustment link. Do
not operate mower unless either the ratchet adjustment
link or the optional hydraulic cylinder and transport bar
is installed.
Install cylinder rod clevis over wheel yoke height
adjustment lug and insert clevis pin (3). Place a flat
washer (5) over each end of clevis pin. Place transport
bar (2) over clevis pin (3) on right side of cylinder clevis, then place another flat washer (5) over pin and
secure with cotter pins (4) in each end of clevis pin.
Attach butt end of cylinder to tongue with clevis pin and
retainer clips provided with cylinder.
To engage transport bar, raise mower to the highest
position and pivot the transport bar over the hydraulic
cylinder rod. Install lock pin through transport bar clevis, beneath hydraulic cylinder rod.

20944 (Rev. 2/3/2006)

1.
2.
3.
4.
5.
6.

3-1/2 x 8" Single-acting hydraulic cylinder
Transport bar
Lock-up pin
1/4 x 1-3/4" Cotter pin
1 x 2" x 10 GA Flat washer
3/16" Safety pin
Figure 32. Optional Hydraulic Cylinder Installation for P990-3

Front Gauge Roller Installation for
RM990-3 and P990-3 (Figure 33)
Optional front gauge rollers are designed to carry front
corners of the mower over uneven ground, minimizing
gouging and scalping.
Front gauge roller mounting points are provided on
both front mower frame corners. The gauge roller and
mounting bracket are pre-assembled.
Attach the gauge roller assembly (1) to corner of
mower frame by installing carriage bolts (3) from inside
the mower frame as shown. Secure with flange lock
nuts (2).
Repeat for opposite gauge roller.

1. Front gauge roller assembly
2. 1/2" Flanged hex lock nut
3. 1/2 x 1-1/4" Carriage bolt
Figure 33. Optional Front Gauge Roller Installation

20944 (Rev. 2/3/2006)

Assembly 37

Optional Front Roller Installation for
RM990-3 and P990-3

Quick Hitch Kit Installation (Optional)

The optional front roller is designed to carry the center
of the mower over uneven ground, minimizing scalping.
Front roller mounting brackets use the four mounting
bolts of the gear stand.
Remove the gear stand front mounting bolts. Hole patterns in the mounting brackets (1 & 2) determine right
and left. Position these brackets with the highest hole
to the rear, the middle hole forward, and the bracket
angle outward as shown.
Attach brackets with the carriage bolts (3) and flange
lock nuts (7) provided with the front roller kit.
Place roller (5) between the brackets and insert rod (6)
through brackets and roller, securing with cotter pins
(4).

1.
2.
3.
4.
5.
6.

Offset Link
38-Link Chain
0.91 Sleeve
1/2" x 6 Cap Screw
1/2" Flat Washer
0.5 Sleeve

7. 1/2" Flange Lock Nut
8. 7/8" Sleeve
9. 7/8" Flat Washer
10. .81x1.25x1.81
Sleeve

Figure 35. Quick Hitch Kit Assembly
(RM660 Shown; Other units use same instructions)
Note: This kit allows mower to fit only Cat. 1 standard
ASAE quick hitch.
Attach offset link (1) to mounting pins, using 7/8 sleeve
(8) and flat washer (9). Attach upper end of offset link
to pivot link, using 1/2 flat washer (5), sleeves (6 & 10),
flange lock nut (7), and 1/2 x 4-3/4 cap screw.
Remove rear offset links and replace with chains (2).
Cut to required length. Attach chain to top of A-frame
as shown, using 1/2 x 6 cap screw (4), 1/2 flat washer
(5), and nut.
1.
2.
3.
4.
5.
6.
7.

Right bracket
Left bracket
3/8 x 1" Carriage bolt
3/16 x 1" Cotter pin
Front roller
Rod
3/8" Flanged lock nut

Figure 34. Optional Front Roller Installation

Attach opposite end of chain (2) to rear mower frame
as shown. Cut chain to 45 inches in length. Vary length
slightly as desired. Twist chain to make finite adjustments in length until unit lifts level. Do not bottom out
the drive on front of deck.

NOTICE
■

Failure to follow instructions may result in
damage.
Install sleeve (3) on mounting pins and retain with Klik
pin.

38 Assembly

(Rev. 3/14/2008)
20944 (Rev. 2/3/2006)

Front Caster Wheel Installation for RM990-3
Remove the front caster wheel and arm assemblies
from shipping location along the outer deck rails.
Attach adjustment lugs to frame with bolts (16) and
nuts (18). Attach caster wheel arm to frame with bolt
(20) and nut (22).

Adjust mower cutting height by using chart (page 11)
and secure with bolts (32) and nuts. Tighten all hardware (see page 67).
Repeat for opposite rear caster wheel.

The wheel comes assembled with bearings and cups
installed.
Adjust mower cutting height by using chart (page 11)
and nut (18). Tighten all hardware (see Bolt Torque
Chart).
Repeat for opposite front caster wheel.

1.
3.
4.
8.
15.

Wheel assembly
Support plate
Caster wheel arm
Caster yoke
Grease zerk

16. 1/2" x 3-3/4 Cap
screw
18. 1/2" Flanged nut
20. 5/8" x 4 Cap screw
22. 5/8" Flanged nut

Figure 36. Front Caster Wheel Installation

Rear Caster Wheel Installation for RM990-3
Remove the rear caster wheel and arm assemblies
from shipping location along the inner deck rails. Discard the shipping bolts.
Attach adjustment lugs to frame with bolts (36), lock
washers (37) and nuts (38). Attach caster wheel arm to
frame with bolt (36), lock washer (37) and nuts (38).

1.
2.
12.
13.
32.
34.
36.
38.

Support plate
Caster wheel arm
Tire
Caster yoke
1/2" x 3-3/4 Cap screw
1/2" Flange lock nut
5/8" x 4 Cap screw
5/8" Hex nut

Figure 37. RM990-3 Rear Caster Wheel Installation

Initial Filling of Gearbox

NOTICE
■

Gearbox was not filled with oil at the factory. It
must be serviced before operating. Failure to service will result in damage to gearbox.
The gearbox was not filled at the factory. Remove the
fill plug and pour in one quart of SAE 90W gear lube,
wait five minutes and add an additional pint and one
half. Allow an additional five minutes for the lube to flow
through the bearings, then check to make sure half of
the horizontal gear shaft is covered. Replace the fill
plug.

The wheel comes assembled with bearings and cups
installed.

(Rev. 3/14/2008)
20944 (Rev. 2/3/2006)

Assembly 39

DEALER CHECKLISTS
PRE-DELIVERY CHECKLIST
(Dealer Responsibility)

meanings and emphasize the increased safety hazards
that exist when safety rules are not followed.

Inspect the equipment thoroughly after assembly to
ensure it is set up properly before delivering it to the
customer.

___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.

The following check lists are a reminder of points to
inspect. Check off each item as it is found satisfactory
or after proper adjustment is made.
___Check that all safety decals are installed and in
good condition. Replace if damaged.
___Check that shields and guards are properly
installed and in good condition. Replace if damaged.
___Check all bolts to be sure they are tight.
___Check that all cotter pins and safety pins are properly installed. Replace if damaged.
___Check and grease all lubrication points as identified
in “Service, Lubrication Information”.
___ Gearboxes are not filled at the factory. Prior to
delivery, fill as specified in the “Service, Lubrication
Information” and check to see that there are no leaking
seals.
___Check that blades have been properly installed.

DELIVERY CHECKLIST
(Dealer Responsibility)
___Show customer how to make adjustments and
select proper PTO speed.
___Instruct customer how to lubricate and explain
importance of lubrication.
___Point out the safety decals. Explain their meaning
and the need to keep them in place and in good condition. Emphasize the increased safety hazards when
instructions are not followed.

___Explain to customer the potential crushing hazards
of going underneath raised equipment. Instruct that
before going underneath to disconnect the driveline,
securely block up all corners with jack stands and to
follow all instructions in the “Service, Blocking Methods” section of the operators manual. Explain that
blocking up prevents cutter dropping from hydraulic
leak down, hydraulic system failures or mechanical
component failures.
___Point out the correct mounting and routing of
hydraulic hoses. Explain that during operation, mounting, dismounting and storage, care must be taken to
prevent hose damage from pulling, twisting and kinking.
___Show customer the safe, proper procedures to be
used when mounting, dismounting, and storing equipment.
___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 must 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.

___Present Operator's Manual and request that customer and all operators read it before operating equipment. Point out the manual safety rules, explain their

40 Dealer Checklists

20944 (Rev. 3/14/2008)

INDEX TO PARTS LIST
RM990-3 (Mounted Model)
RM990-3 & P990-3 Common Parts Main Frame Assembly . . . . . . . . . . . . . . . . . . . . . . . . page 42
RM990-3 Main Frame Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 44
Gearbox Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 46
Gearbox Assembly (After S/N 788882). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 48
Blade Spindle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 51
Rubber Shielding Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 52
Chain Shielding Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 53
Front Roller Assembly (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 54
Front Caster Wheel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 55
Rear caster arm assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 56
Front Gauge Roller Assembly (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 57
Drives
Drive shaft for serial numbers 725411 and later . . . . . . . . . . . . . . . . . . . . . . . . . . page 50
Front 1/2 Drive Assembly with Square Shaft for Serial Numbers 577000 and Below
Standard Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 61
Long Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 62
With Tri-Lobe Shaft for Serial Numbers 577001 thru 725410 . . . . . . . . . . page 60
Rear 1/2 drive assembly
With Tri-Lobe Shaft for Serial Numbers 577001 thru 725410 . . . . . . . . . . page 60
With Square Shaft for Serial Numbers 577000 and Below . . . . . . . . . . . . page 61
Quick hitch kit (optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 63

P990-3 (Pull-Type)
Main Frame Assembly
RM990-3 & P990-3 Common Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 42
P990-3 Main Frame Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 45
Gearbox Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 46
Rear 1/3 of Universal Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 47
Gearbox assembly (after s/n 788882). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 48
Front 2/3 of 3-Joint Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 49
Blade Spindle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 51
Parking Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 51
Rubber Shielding Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 52
Pneumatic Tire Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 52
Chain Shielding Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 53
Hub Assembly for Pneumatic Tire. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 54
Front Roller Assembly (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 54
Front Gauge Roller Assembly (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 57
Hydraulic Hose Kit & Fittings (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 58
Hydraulic Stroke Control Kit (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 58
Hydraulic Cylinder (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 59

20944 (Rev. 3/14/2008)

Parts 41

RM990-3 & P990-3 MAIN FRAME ASSEMBLY - COMMON PARTS

42 Parts

20944 (Rev. 3/14/2008)

RM990-3 & P990-3 MAIN FRAME ASSEMBLY - COMMON PARTS
REF

PART

QTY

DESCRIPTION

-----

Deck (not sold separately)

20787

Belt shield

20134

Right drive shield mounting bracket
(P990 only)

REF

PART

307133

6697

21636

QTY

DESCRIPTION
M8 x 1.25 x 25 mm Cap screw GR5
(after S/N 788882)

3/8 NC x 1 Carriage bolt GR5

838

3/8 Standard lock washer

3/8 NC Hex nut, plated

3/8 x 1-1/4 Clipped head plow bolt

20136

Gearbox drive shield (P990 only)

20135

Left drive shield mounting bracket
(P990 only)

835

14350

Gearbox, 1.76:1 CCW (SN 788882
and prior) -or-

1287

20786

Grease adapter, 1/4-28 male x
1/8NPT female

20670

3/8 NC Flanged hex lock nut -or*

3/8 NC Wing nut

1003409

Gearbox, 1.69:1 CCW (after SN
788882)

18960

Grease fitting, 1/8 male PTF x 2.63"

15843

Bent link, (P990 only)

24445

7/16 NC x 3-1/2 Eyebolt

19535

Gearbox stand

4638

7/16 NC Hex nut

19570

Flat pulley with bearing

2210

7/16 Standard flat washer

27925

2 TB 11.4 Sheave P

25475

18990

2V Power band belt 2W140

19587

Spindle belt guide

6100

1/2 NC x 1-1/4 Cap screw GR5

10799

P 1 x 1-1/2 Straight bore bushing
(S/N 788882 and prior) -or-

3699

1/2 NC x 2 Cap screw GR5

855

1/2 Extra heavy lock washer

1482

P 1 x 1-1/4 Straight bore bushing
(after S/N 788882)

3598

1/2 SAE Flat washer

28928

.187 x 1.3 x 8.17 Ext. spring

29553

19541

Idler arm assembly

11900

13557

P 1, 1-3/8 Straight bore bushing

19024

5/8 x 1-3/4 Cap screw, flanged

19575

Sheave, 5.4 2G B P

20419

5/8 NC x 3 Carriage bolt GR5

3444

Access cover

19589

Side skid (includes items 38 & 39)

24520

CCW Spindle assembly

24650

Front roller bundle complete Optional

20137

Complete english decal set,
RM/P990-3

20138

English safety decal set, RM/P990-3

50138

French safety decal set, RM/P990-3

24590KT

CCW Blade, 13" long - standard -or-

28329KT

CCW Low suction blade, 13" long Optional

19571

Flat pulley 5.95 x 2 x 1.85

6095

.626 ID x 1.85 OD Ball bearing

51849

Counter-cone shield (RM990 only)

1266

3/16 x 1-1/2 Cotter pin

839

3/8 NC x 1 Cap screw GR5 (S/N
788882 and prior) -or-

20944 (Rev. 3/14/2008)

1605

19025

6239

22060

1/2 NC x 1 Cap screw GR5, full
thread

1/2 x 1-5/8 x 1/4 Flat washer
*

1/2 NC Flanged hex lock nut

5/8 NC x 4 Cap screw GR5
5/8 NC Flanged hex lock nut

5/8 NC Hex lock nut
5/8 x 1 x 1/4 Felt seal

19543

.657 x .875 x 1.25 Sleeve

11036

3/4 x 1-1/2 x 18 GA Shim washer

6096

24801

2472

5/16 Standard lock washer (RM990
only)

4378

5/16 Standard flat washer (RM990
only) -or-

35155

5/16 SAE Flat washer ZP (RM990
only)

29341

5/16 NC x 3/4 Cap screw GR5
(RM990 only) -orM8 x 1.25P x 20 mm Cap screw
GR5 (RM990 only)

Idler post
* Obtain Locally

Parts 43

RM990-3 MAIN FRAME ASSEMBLY - MOUNTED MODEL

REF

PART

QTY

DESCRIPTION

REF

PART

19975

Hitch pin bracket, left -or-

3379

19976

Hitch pin bracket, right

29561
11900

33661

Category 1 mounting pin

19977

Offset link, .05 x 2.50 x 27.25

23141

19585

Pivot link

692

19578

Offset link, .25 x 1.50 x 45.56

1286
230

QTY

DESCRIPTION
* 1/2 NC x 1-1/2 Cap screw GR5
1/2 NC x 4-3/4 Cap screw GR5
* 1/2 NC Flanged hex lock nut
5/8 NC x 3-1/2 Cap screw GR5
* 5/8 Standard flat washer
* 5/8 Heavy lock washer

64814

1/2 Schedule 40 x 2-3/4 pipe

* 5/8 NC Hex nut

-----

Universal drive

19524

.64 x 1 x 2.09 Sleeve HT

36998

PTO hanger bracket

15345

External snap ring, .05 x 1.38

* Standard hardware, obtain Locally

44 Parts

20944 (Rev. 3/14/2008)

P990-3 MAIN ASSEMBLY - PULL-TYPE

REF
31
32
REF

PART

1
2
3
4
5
6
7
8
9
10
11
12
13
24
25
26
27

20266
7668
30972
--------19012
14255
34931
30975
23650
23790
34859
20788
1256
839
838
15349

28
29
30

12305
404
855

QTY

DESCRIPTION

1
1
1
1
1
1
2
2
1
1
1
1
1

Tongue assembly
H-Frame assembly
Attitude rod assembly
Front 2/3 of 3-joint drive
Rear 1/3 of universal drive
Drive shaft shield
18 x 9.5 x 8 Rib tire & 5-hole wheel
Wheel hub and axle assembly
Wheel yoke
Ratchet adjustment link bundle
Swivel parking jack
Transport bar
Jack mounting lug
3/16 x 1 Cotter pin
3/8 x 1 Cap screw GR5
3/8 Standard lock washer
1/2 NC x 3 Shear bolt (SN 788882
and prior)
1/2 NC x 5-1/2 Cap screw GR5
1/2 x 5-3/4 Clevis pin HT
1/2 Extra-heavy lock washer

*
*
*
*
*
*

20944 (Rev. 3/14/2008)

33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52

PART

QTY

DESCRIPTION

1093
765

1/2 NC Heavy hex nut
* 1/2 NC Hex lock nut (S/N 788882
and prior)
7035
1/2 Schedule 40 x 3-9/16 pipe
5777
5/8 x 2-1/4 Clevis pin
34473
* 5/8 NC x 3 Cap screw GR5
6239
* 5/8 NC Hex lock nut
23141
5/8 NC x 3-1/2 Cap screw HT
8317
5/8 x 5-21/32 Clevis pin
692
* 5/8 Standard flat washer
1286
* 5/8 Heavy lock washer
230
* 5/8 NC Hex nut
19524
.64 x 1 x 2.09 Sleeve HT
2371
* 3/4 NC Hex lock nut
11190
3/4 Schedule 80 x 3/4 pipe
11099
1-1/4 x 3-1/4 Long pin
11100
1-5/16 x 1-3/4 x 2-1/8 Sleeve
923
* 1/4 x 1-3/4 Cotter pin
18270
* 3/16 Safety pin
24636
1 x 2 x 10 GA Flat washer
34827
Lock-up pin
10475
Hydraulic cylinder - Optional
15345
External snap ring, .05 x 1.38 (S/N
788882 and prior)
* Standard hardware, obtain Locally

Parts 45

GEARBOX ASSEMBLY
REF

PART

QTY

DESCRIPTION

20670

1.76:1 CCW Gearbox

20689

1.38 x 2.56 x .38 Seal

20676

Internal retaining ring, .093 x 2.56

19075

Shim washer kit

2716

Bearing cup

2717

Bearing cone

20680

30-Tooth gear & 1.38 shaft

3586

Bearing cone

3585

Bearing cup

838

* 3/8 Standard lock washer
* 3/8 NC x 3/4 Cap screw GR5

1686

10362

1" Sq head vented pipe plug (used
prior to S/N 2000)

20675

Gearbox cover, 10GA, 6.1 x 6.9

20673

Gearbox flange mount housing

20682

1.63 x 9.8 x 17-T Gear shaft

11114

Bearing cone

11115

Bearing cup

11553

2.25 x 3 x .375 Double lip seal

20677

Round stake nut, 1-5/8 16UN

12889

3/32 x 1-9/16 OD O-Ring

19077

Puller kit (includes bolts, #21)

62144

3/8 x 2-1/2 Cap screw, full thread

19165

Dipstick (includes item 23)

23542

1/8 x 1-1/4 ID 218 O-Ring

46 Parts

20944 (Rev. 3/14/2008)

P990-3 REAR 1/3 OF UNIVERSAL DRIVE - PULL-TYPE

REF

PART

QTY

DESCRIPTION

20199

Drive yoke & shaft, shielded 15.50
long

20191

Plastic shield 3.00 x 17.44 (includes
items 6 & 7)

20192

Yoke & shaft 14N x 15.50

154

Universal joint repair kit L14R

20193

Shear yoke, 2000 series (S/N
788882 and prior)

148

Quick disconnect yoke, 1-3/8 (after
S/N 788882)

15740

Outer shield bearing

15739

Shield tether chain 27.5" long

19613

Plastic shield kit (consists of 20191
& 20196)

15349

1/2 NC x 3 Shear bolt

765

1/2 NC Hex lock nut

20944 (Rev. 3/14/2008)

Parts 47

GEARBOX ASSEMBLY - AFTER S/N 788882

REF
1

PART
1001224

QTY
1

DESCRIPTION
Crown gear 22T M5.7

Gearbox housing

57465

Input shaft 1-3/8 - 6 spline

1001218

Output shaft

1001223

Gear pinion 13T M5.7

57477

Bearing cup & cone

57478

Bearing cup & cone

57462

Bearing cup & cone

20890

Ball bearing

20897

-----

* Cotter pin

57466

Snap ring

57467

Snap ring

57373

Spacer 35.3 x 48 x 2.5

57328

Gearbox shim kit

57469

Castle nut M24 x 1.5

20892

Castle nut metric M24 x 2

20893

Protective washer

57475

Flat washer 21 x 37 x 3

57474

Flat washer 25 x 48 x 2.5

20900

Metric seal 40 x 80 x 12

57463

Oil seal 35 x 72 x 10

57374

Oil cap

57376

-----

* M8 x 16 Bolt CL8.8

57076

Plug 1/2 breather

Internal retainer ring 81 mm

Top cover

* Standard hardware, obtain locally
NS = Not Serviced

48 Parts

20944 (Rev. 3/14/2008)

P990-3 FRONT 2/3 OF 3-JOINT DRIVE - PULL-TYPE

REF

20944 (Rev. 3/14/2008)

PART

QTY

DESCRIPTION

20190

Front 2/3 of 3-joint drive complete

15928

Front 2 joints shielded

154

U-Joint repair kit L14R

117

Lock pin & spring

148

1-3/8 Quick-disconnect yoke

1251

Bearing holder with bearing

12128

.062 x 72 mm ID Snap ring

3502

2985

* 1/4-28 Threaded 905 grease fitting

20197

1-3/16 Tube drive 14N, 18.94 long

20196

Tubular shield with bearing & chain
15.25 long

15999

Shield bearing kit

4390

1/2 NF x 1-1/4 Socket head set
screw

1.37 ID x 2.83 OD Ball bearing

4391

1/2 NF Hex jam nut

4392

1-1/4 Spline U-joint yoke

4738

Yoke with rectangular hole

4674

3/8 x 2 Spirol pin

15930

Outer shield

4724

Rectangular shaft & yoke

15738

Inner shield bearing

15739

Shield tether chain 27.5

15932

Inner shield with bearing & chain

Parts 49

RM990 DRIVE SHAFT - S/N 725411 AND LATER - MOUNTED MODEL ONLY

REF

PART

QTY

DESCRIPTION

40557

Drive assembly complete (S/N 725411 through 788882)

1001228

Drive assembly complete (after S/N 788882)

40574

Yoke, 1-3/8-6SP (complete with lock collar)

110

Cross and bearing kit

40764

Spring pin 10 mm x 80 mm

40575

Inboard yoke (male drive tube)

40587

Inner profile (cut to length)

40588

Outer profile (cut to length)

40576

Inboard yoke (female drive tube) (S/N 725411 through 788882)

40570

Yoke, 1-3/8 round bore (S/N 725411 through 788882)

40574

Yoke, 1-3/8-6 SP (complete with lock collar) (after S/N 788882)

40766

Bearing ring (Package of 2)

40777

Anti-rotation chain

40778

Screw (Package of 10)

40779

Grease zerk

40767

Guard support bearing

765

1/2 NC Lock nut (S/N 725411 through 788882)

40589

Lock collar repair kit (without yoke)

40590

Guard, outer half (also includes items 12, 13 and 14) (cut to length)

40591

Guard, inner half (also includes items 12, 13, 14 and 18) (cut to length)

40744

Shaft assembly, male half (complete with guard) (all S/N 725411 and later)

40745

Shaft assembly, female half (complete with guard) (S/N 725411 through 788882 only)

1001226

Shaft assembly, female half (complete with guard) (after S/N 788882 only)

3489

1/2 NC x 3 Cap screw, GR5 (S/N 725411 through 788882 only)

50 Parts

20944 (Rev. 3/14/2008)

RM990-3 & P990-3 BLADE SPINDLE ASSEMBLY
REF

PART

QTY

DESCRIPTION

24520

CCW Blade spindle complete

18359

1-3/8 x 1-3/4 x 5/8 Sleeve

2715

Seal for 1-3/4 shaft

2717

Bearing cone

18361

Spindle housing with cups

2716

Bearing cup

----

2718

1-3/4 x 2-3/8 x 13 GA Flat washer

24521

Spindle shaft and crossbar asy

24527

Spindle blade lock

3967

QD Blade pin

* See extended zerk page 44

13288

1/2 NC x 3/4 Nylok Cap screw

24590KT

CCW Blade, 13" long - Standard -or-

28329KT

CCW Low suction blade, 13" long Optional

P990-3 PARKING JACK - PULL-TYPE
REF

PART

QTY

DESCRIPTION

23790

Swivel parking jack complete

25857

Jack hitch pin assembly

25858

Jack gearbox cover

25859

15-Tooth bevel gear

25860

* 5/32 x 1-1/4 Drive pin

25861

Jack crank handle

25862

Thrust bearing
* Standard hardware, obtain locally

20944 (Rev. 3/14/2008)

Parts 51

RM990-3 & P990-3 RUBBER SHIELDING ASSEMBLY

REF

PART

QTY

DESCRIPTION

REF

PART

QTY

DESCRIPTION

15845

Rubber shield bundle complete

19567

Left rear rubber shield plate

19556

Right front rubber shield plate

19568

Rubber belt, 3.75 x 48.50

19569

Link, .19 x 1.25 x 48.25

19557

Left front rubber shield plate

19558

Rubber belt, 3.25 x 35.25

6697 54

* 3/8 NC x 1 Carriage bolt GR5

19559

Bent link, .19 x 1.25 x 34.75

14350 54

3/8 NC Flanged hex lock nut

19566

Right rear rubber shield plate

* Standard hardware, obtain Locally

P990-3 PNEUMATIC TIRE ASSEMBLY
REF

52 Parts

PART

QTY

DESCRIPTION

14256

Rim for 18 x 9.5 x 8 tire

1258

1/2 NF x 1-1/8 Wheel bolt

14254

18 x 9.5 x 8 6-Ply rib tire

14576

18 x 9.5 x 8 Inner tube

14255

18 x 9.5 x 8 Rib tire and 5-hole
wheel

20944 (Rev. 3/14/2008)

RM990-3 & P990-3 CHAIN SHIELDING ASSEMBLY

REF
-

PART
20795

QTY
1

DESCRIPTION

REF

PART

QTY

Chain shield bundle complete

4765 96
1256

DESCRIPTION
4-Link chain, 1/4 proof

19552

Right front chain shield plate

19553

Left front chain shield plate

18150

3/8 x 29-7/8 Pin, 24-chain

20792

Right rear chain shield plate

11761

3/8 x 48-1/2 Pin, 39-chain

20793

Left rear chain shield plate

6697 16

* 3/8 NC x 1 Carriage bolt GR5

3-Link chain, 1/4 proof

14350 16

3/8 NC Flanged hex lock nut

4763 60

* 3/16 x 1 Cotter pin

* Standard hardware, obtain locally

20944 (Rev. 3/14/2008)

Parts 53

P990-3 HUB ASSEMBLY FOR PNEUMATIC TIRE

REF

PART

QTY

DESCRIPTION

REF

PART

QTY

DESCRIPTION

34931

Wheel hub and axle assembly

2305

Bearing cup

3626

1-14 UNS Hex nut

14132

5-Bolt wheel hub with cups

3627

1" Internal tooth lock washer

1257

* 3/4 Standard flat washer

34932

Axle assembly

5849

3/4 NF Slotted hex nut

14133

Hub cap with grease fitting

6270

1266

* 3/16 x 1-1/2 Cotter pin

314

Seal for 1-1/2 shaft

2303

Bearing cone

* Straight 1/4 tapered thread grease
fitting (for hub cap)
* Standard hardware, obtain locally

RM990-3 & P990-3 FRONT ROLLER ASSEMBLY (OPTIONAL)
REF

PART

QTY

DESCRIPTION

24650

Front roller complete

24583

Front roller, rod & bearings

24587

Left front roller bracket

24586

Right front roller bracket

1256

29610

6697

* 3/8 NC x 1 Carriage bolt GR5

14350

3/8 NC Flanged hex lock nut

* 3/16 x 1 Cotter pin
3/8 x 7/8 x 7/8 Nylon flange bearing

* Standard hardware, obtain locally

54 Parts

20944 (Rev. 3/14/2008)

RM990-3 FRONT CASTER ARM ASSEMBLY

REF

PART

QTY

DESCRIPTION

REF

PART

QTY

20790KT

Complete front caster wheel kit
(Solid tires only; includes Ref. 1-30)

52744

21022

20718

13 x 5 x 10 Solid tire
(includes item 5) -or-

1972

12024

19744

13 x 5 x 6 Pneumatic tire
(includes item 5)

11900

1/2 NC Flange hex lock nut

20777

Front caster support plate

1605

* 5/8 NC x 4 Cap screw GR5

20781

Caster wheel arm (includes PN31780 bronze bushing, 1-1/4 x 1-1/2
x 1-1/2)

1286

* 5/8 Heavy lock washer

230

23609

1-1/4 x 2-3/8 x 3/16 Flat washer

2306

Bearing cup

24588

1-1/4 x 1-7/8 x 3/8 Felt seal

2304

Bearing cone

24589

Caster wheel cap washer

5624

Seal for 1-1/8" shaft

1257

* 3/4 Standard flat washer

52743

Caster yoke

5849

* 3/4 NF Slotted hex nut

52741

Axle

1266

* 3/16 x 1-1/2 Cotter pin

DESCRIPTION
.752 x 1.125 x .625 HT Bushing
1/4 x 2 Spirol pin
* 1/4-28 Tapered thread grease fitting
* 1/2 NC x 3-3/4 Cap screw GR5

* 5/8 NC Hex nut

* Standard hardware, obtain locally

20944 (Rev. 3/14/2008)

Parts 55

RM990-3 REAR CASTER ARM ASSEMBLY

REF

PART

QTY

DESCRIPTION

REF

PART

QTY

20776

Rear caster support plate

52744

20781

Caster wheel arm (includes PN31780 bronze bushing, 1-1/4 x 1-1/2
x 1-1/2)

52741

1972

DESCRIPTION
.752 x 1.125 x .625 HT Bushing
Axle
* 1/4-28 Tapered thread grease fitting

21022

24589

Caster wheel cap washer

12024

24588

1-1/4 x 1-7/8 x 3/8 Felt seal

11900

23609

1-1/4 x 2-3/8 x 3/16 Flat washer

1605

* 5/8 NC x 4 Cap screw GR5

5624

Seal for 1-1/8 shaft

1286

* 5/8 Heavy lock washer

2304

Bearing cone

230

2306

Bearing cup

1257

* 3/4 Standard flat washer

20718

13 x 5 x 10 Solid tire
(includes item 11) -or-

5849

* 3/4 NF Slotted hex nut

19744

13 x 5 x 6 Pneumatic tire
(includes item 11)

1266

* 3/16 x 1-1/2 Cotter pin

52743

Caster yoke

56 Parts

1/4 x 2 Spirol pin
* 1/2 NC x 3-3/4 Cap screw GR5
1/2 NC Flanged hex lock nut

* 5/8 NC Hex nut

* Standard hardware, obtain locally

20944 (Rev. 3/14/2008)

RM990-3 & P990-3 FRONT GAUGE ROLLER ASSEMBLY (OPTIONAL)
REF

PART

QTY

DESCRIPTION

15990

Front gauge roller complete

29361

5" Front roller, bearing & sleeve
assembly (includes items 2 & 7)

29364

1/2 x 3/4 x 5-5/16 Sleeve HT

19534

Roller bracket

2615

22205

11900

29363

* 1/2 NC x 1-1/4 Carriage bolt GR5
1/2 NC x 6-1/2 Cap screw GR5
* 1/2 NC Flanged hex lock nut
3/4 x 1 x 1-1/2 Bronze flange bearing
* Standard hardware, obtain locally

20944 (Rev. 3/14/2008)

Parts 57

P990-3 HYDRAULIC HOSE KIT & FITTINGS (OPTIONAL)

REF

PART

QTY

DESCRIPTION

17601

1/4 x 108 Hydraulic hose kit & fittings

17628

1/4 NPT x 108 High pressure hose
assembly

10290

1/4 x 1/4 x 90° Elbow with 1/16 restrictor

11893

* 1/2 x 1/4 Pipe reducer bushing
* Standard hardware, obtain locally

P990-3 HYDRAULIC STROKE CONTROL KIT (OPTIONAL)
REF

PART

QTY

DESCRIPTION

24098

Stroke control set for 1-1/4 cylinder
rod (contains items 2 through 5)

-----

1-1/2" Segment

-----

1-1/4" Segment

-----

1" Segment

-----

3/4" Segment

58 Parts

20944 (Rev. 3/14/2008)

P990-3 3-1/2" BORE X 8" STROKE SINGLE-ACTING HYDRAULIC CYLINDER (OPTIONAL)
FOR PULL-TYPE ONLY

#10475 is a single-acting cylinder. Hoses and fittings are
installed in one port and vent
plug is installed in other port.

REF

PART

QTY

DESCRIPTION

REF

PART
923

QTY
4

DESCRIPTION

-----

Not available

* 1/4 x 1-3/4 Cotter pin

26340

Seal repair kit (includes items 2A
through 2G)

1631

1 x 3-5/8 Clevis pin

11975

1/2 NPT Vent plug

-----

† 1-1/4 ID Wiper seal

26342

Cylinder barrel

-----

† Rod back-up ring

-----

Not required

-----

† 1-1/4 ID O-Ring

-----

Not required

-----

† 3/16 x 3-1/2 OD O-Ring

4391

1/2 NF Hex jam nut

-----

† 3/32 x 3/4 OD O-Ring

25661

Cylinder rod clevis

-----

† 3-1/2 OD Back-up washer

6698

* 3/8 NC Hex lock nut

† Piston seal O-ring

23550

* 3/8 NC x 1-1/2 Socket head cap
screw

-----

26338

Rod end housing

25497

Piston

26343

Cylinder rod

25496

1-14 UNS Jam nut

10475

26341

Hydraulic cylinder complete
(single-acting)

11893

4510

25494

Tie rod
* 1/2 x 1/4 Pipe reducer bushing
Cylinder butt end

20944 (Rev. 3/14/2008)

* 1/2 Pipe plug
* Standard hardware, obtain locally
† Included in seal kit

Parts 59

RM990-3 FRONT 1/2 DRIVE ASSEMBLY WITH TRI-LUBE SHAFT FOR S/N 577001 - 725410
MOUNTED MODEL ONLY

REF

PART

QTY

DESCRIPTION

53453

Complete drive, profile shield 50,
16.9, 1.38 - front half

51179

50 QD Yoke, 1-3/8 6B

36990

U-Joint repair kit 50

53456

Yoke & Tube (profile) 50 x 16.9

51190

Drive shield bearing 50
(includes rear bearing)

N/S

Shield bell kit

N/S

Shield tube

30922

Retainer shield

30917

Chain shield tether

30913

1-3/8 Push pin set

53457

Outer shield assembly complete
(includes items 5 through 9)
N/S Not serviceable

RM990-3 REAR 1/2 DRIVE ASSEMBLY WITH TRI-LOBE SHAFT FOR S/N 577001 - 725410
MOUNTED MODEL ONLY
REF

PART

QTY

DESCRIPTION

53462

Complete drive, profile shield 50,
18.5, 1.38 SB - rear half

53461

50 Shear pin yoke

36990

U-Joint repair kit 50

53458

Yoke and tube (profile) 50

51190

Drive shield bearing 50
(includes front bearing)

N/S

Shield bell kit

30922

Retainer shield

30917

Chain shield tether

N/S

Shield tube

53459

Shield assembly non-rotating
(includes items 5 through 9)

3489

1/2 NC x 3 Cap screw GR5

765

1/2 NC Hex lock nut
N/S - Not serviceable

60 Parts

20944 (Rev. 3/14/2008)

RM990-3 FRONT 1/2 DRIVE ASSEMBLY WITH SQUARE SHAFT FOR S/N 57700 AND BELOW
MOUNTED MODEL ONLY
Standard Drive
REF

PART

QTY

DESCRIPTION

19988

Drive, female half shielded, 1800,
18.4, 1.38

15510

1-3/8 QD Splined yoke, 1800 -or-

19894

1-1/8 Splined yoke 1800
(includes item 9 and 10)

15511

Universal joint repair kit, 1800

19990

Yoke & tube, female telescoping,
1800, 18.38

19992

Shield, Non-rotating, 2.75 x 19.5

15738

Shield bearing

117

Lock pin & spring

15739

6128

19898

Shield tether chain 27-1/2"
* 1/4 NC Hex lock nut
1/4 NC x 1-3/4 Cap screw GR5

Long Drive
REF

PART

QTY

DESCRIPTION

20140

Drive shield, yoke & tube, 24.88

15510

1-3/8 QD Splined yoke 1800

15511

U-Joint repair kit, 1800

15513

Yoke & tube assembly, 1800 25.13

19607

Shield 2.75 x 25.6 with decal
(includes items 6 & 8)

15738

Shield bearing

117

Lock pin & spring

15739

Shield tether chain 27-1/2"
* Standard hardware, obtain locally

20944 (Rev. 3/14/2008)

Parts 61

RM990-3 REAR 1/2 DRIVE ASSEMBLY WITH SQUARE SHAFT FOR S/N 57700 AND BELOW
MOUNTED MODEL ONLY
REF

62 Parts

PART

QTY

DESCRIPTION

19994

Drive male half shielded, 1800,
20.44, 1.38

19996

Shield, non-rotating, 2.50 x 2.50 x
19.9

19995

Yoke & shaft male telescoping, 1800
x 20.44

15511

Universal joint repair kit, 1800

19745

Shear yoke, 1800

15738

Inner shield bearing

15739

Shield tether chain 27-1/2"

19602

Shield kit (consists of 19992 &
19996)

15349

1/2 NC x 3 Shear bolt

765

1/2 NC Hex lock nut

20944 (Rev. 3/14/2008)

QUICK HITCH KIT (OPTIONAL)

REF

PART

QTY

DESCRIPTION

1003692

Link, offset .38 x 2.0 x 15

1005401

Chain 3/8 proof coil 38 link

38214

Sleeve, .91 x 1.44 x 1.25

13563

* Cap screw 1/2 NC x 6 GR5

854

* Washer, flat 1/2 ZP

29368

Sleeve, .50 x .75 x 3.38

11900

Nut, flange lock 1/2 NC

29281

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

4258

1003614

1005400

* Washer, flat 7/8
Sleeve, .81 x 1.25 x 1.81
Quick hitch, complete
* Standard hardware, obtain locally

20944 (Rev. 3/14/2008)

Parts 63

BOLT TORQUE CHART
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.
SAE Bolt Head
Identification

SAE SERIES
TORQUE
CHART

SAE Grade 2
(No Dashes)

SAE Grade 8
(6 Radial Dashes)

SAE Grade 5
(3 Radial Dashes)
MARKING ON HEAD

SAE 2

SAE 5

SAE 8

Diameter
(Inches)

Wrench
Size

lbs-ft

N-m

lbs-ft

N-m

lbs-ft

N-m

1/4"
5/16"

7/16"
1/2"

6
12

8
17

10
19

13
26

14
27

18
37

3/8"
7/16"

9/16"
5/8"

23
36

31
48

35
55

47
75

49
78

67
106

1/2"
9/16"

3/4"
13/16"

55
78

75
106

85
121

115
164

120
171

163
232

5/8"
3/4"

15/16"
1-1/8"

110
192

149
261

170
297

230
403

240
420

325
569

7/8"
1"

1-5/16"
1-1/2"

306
467

416
634

474
722

642
979

669
1020

907
1383

METRIC SERIES
TORQUE
CHART

Metric Bolt Head
Identification

8.8
Metric
Grade 8.8

10.9
Metric
Grade 10.9

Coarse Thread

Fine Thread

Marking on Head

Diameter &
Thread Pitch
(Millimeters)

Wrench
Size

N-m

lbs-ft

N-m

lbs-ft

N-m

lbs-ft

N-m

lbs-ft

Diameter &
Thread Pitch
(Millimeters)

6 x 1.0

10 mm

6 x 1.0

8 x 1.25
10 x 1.5

13 mm
16 mm

20
39

15
29

27
54

20
40

21
41

16
30

29
57

22
42

8 x 1.0
10 x 1.25

12 x 1.75
14 x 2.0

18 mm
21 mm

68
109

50
80

94
151

70
111

75
118

55
87

103
163

76
120

12 x 1.25
14 x 1.5

16 x 2.0
18 x 2.5

24 mm
27 mm

169
234

125
172

234
323

173
239

181
263

133
194

250
363

184
268

16 x 1.5
18 x 1.5

20 x 2.5
22 x 2.5

30 mm
34 mm

330
451

244
332

457
623

337
460

367
495

270
365

507
684

374
505

20 x 1.5
22 x 1.5

24 x 3.0
30 x 3.0

36 mm
46 mm

571
1175

421
867

790
1626

583
1199

623
1258

459
928

861
1740

635
1283

24 x 2.0
30 x 2.0

Typical Washer
Installations
Bolt

Metric 8.8

Lock Washer

Metric 10.9

Metric 8.8

Metric 10.9

Flat Washer

8/9/00

64 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

100

125

150

175

Metric Bolt Thread Sizes
8MM
10MM

12MM

14MM

16MM

18MM

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 Standard Pipe Tapered 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

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

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 Take 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

Appendix 65

INDEX
ASSEMBLY 31
Dealer Set-Up Instructions 31
Optional Equipment Installation 36
DEALER CHECK LISTS 40
Delivery 40
Pre-Delivery 40
DEALER SERVICE 22
Blade Spindle 22
Assembly 23
Disassembly 23
Installation 24
Removal 22
Repair Tips 22
Blocking Methods 22
Gearbox 26
Assembly 27, 29
Disassembly 26, 28
Drive Pulley Installation 30
Leakage Repair 26
Removal 26
Universal Joint Repair 24
Assembly 26
Disassembly 25
Wheel Spindle Repair 24
GENERAL
Abbreviations 49
Bolt Size Chart 49
Bolt Torque Chart 48
General Information 4
General information 4
Introduction 2
Obtaining Replacement Manuals 2
Specifications 4
Warranty
Product 64
Replacement Parts 1

OPERATION 10
Attaching Mower to Tractor 10
P990-3 12
Drawbar to Hitch Point Distance 12
RM990-3
Cutting Height Adjustment 11
Tractor Stability 12
Cleaning 15
Operating Techniques 13
Optional Blade 14
Optional Front Roller 14
Tips 14
Uneven Terrain 14
Pre-Operation Checklist,
(Operator’s Responsibility) 13
Starting and Stopping Mower 13
Transporting P990-3 Mower 14
OWNER SERVICE 16
Belt Replacement 18
Blade Servicing 19
Installation 19
Removal 19
Sharpening 19
Blocking Methods 16
Lubrication Information 16
Shear Bolt Replacement 18
Shielding Repair 18
Chain Shielding 19
Side Skide Repair 19
Wheel Bearing Maintenance - RM990-3 Only 19
PARTS 41
SAFETY
Safety & Instructional Decals 7
Safety Rules 5
Safety Symbols Explained 2
TROUBLE SHOOTING 20
Belt Conditions 21
Mowing Conditions 20

66 Index

20944 (Rev. 3/14/2008)

WARRANTY
(All Models Except Mow’n Machine

Zero-Turn Mowers and Woods BoundaryTM Utility Vehicles)

Please Enter Information Below and Save for Future Reference.
Date Purchased: ____________________________

From (Dealer): ___________________________________________

Model Number: ____________________________

Serial Number: ___________________________________________

Woods Equipment Company (“WOODS”) warrants this product to be free from defect in material and workmanship. Except as otherwise set
forth below, the duration of this Warranty shall be for TWELVE (12) MONTHS COMMENCING ON THE DATE OF DELIVERY OF THE
PRODUCT TO THE ORIGINAL PURCHASER.
Woods backhoe models BH70-X, BH80-X, and BH90-X are warranted for two (2) years from the date of delivery to the original purchaser.
The warranty periods for specific parts or conditions are listed below:
Part or
Condition
Warranted

Model Number
BW1260, BW1800

Duration (from date of delivery
to the original purchaser)
8 years

BB48X, BB60X, BB72X, BB84X, BB600X, BB720X, BB840X, BB6000X,
6 years
BB7200X, BB8400X, DS1260, DSO1260, DS1440, TS1680, BW126-2, BW180-2
Gearbox
components

PHD25, PHD35, PHD65, PHD95, 2162, 3240, DS96, DS120, RCC42, RM550-2,
RM660-2, RM990-3, PRD6000, PRD7200, PRD8400, 7144RD-2, 9180RD-2, 5 years
9204RD-2, S15CD, S20CD, S22CD, S25CD, S27CD
RDC54, RD60, RD72

3 years (1 year if used in rental or
commercial applications)

Blade spindles

RM550-2, RM660-2, RM990-3, PRD6000, PRD7200, PRD8400, 7144RD-2,
3 years
9180RD-2, 9204RD-2

Rust-through

BB600, BB720, BB840, BB6000, BB7200, BB8400, BW126-2, BW180-2,
10 years
BW1260, BW1800, 2162, 3240, DS1260, DSO1260, DS1440, TS1680

Under no circumstances will this Warranty apply in the event that the product, in the good faith opinion of WOODS, has been subjected to
improper operation, improper maintenance, misuse, or an accident. This Warranty does not apply in the event that the product has been
materially modified or repaired by someone other than WOODS, a WOODS authorized dealer or distributor, and/or a WOODS authorized
service center. This Warranty does not cover normal wear or tear, or normal maintenance items. This Warranty also does not cover repairs made
with parts other than those obtainable through WOODS.
This Warranty is extended solely to the original purchaser of the product. Should the original purchaser sell or otherwise transfer this product to
a third party, this Warranty does not transfer to the third party purchaser in any way. There are no third party beneficiaries of this Warranty.
WOODS makes no warranty, express or implied, with respect to engines, batteries, tires or other parts or accessories not manufactured by
WOODS. Warranties for these items, if any, are provided separately by their respective manufacturers.
WOODS’ obligation under this Warranty is limited to, at WOODS’ option, the repair or replacement, free of charge, of the product if WOODS,
in its sole discretion, deems it to be defective or in noncompliance with this Warranty. The product must be returned to WOODS with proof
of purchase within thirty (30) days after such defect or noncompliance is discovered or should have been discovered, routed through the
dealer and distributor from whom the purchase was made, transportation charges prepaid. WOODS shall complete such repair or
replacement within a reasonable time after WOODS receives the product. THERE ARE NO OTHER REMEDIES UNDER THIS
WARRANTY. THE REMEDY OF REPAIR OR REPLACEMENT IS THE SOLE AND EXCLUSIVE REMEDY UNDER THIS
WARRANTY.
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE OF THIS WARRANTY. WOODS
MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, AND WOODS SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY
OF MERCHANTABILITY AND/OR ANY IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
WOODS shall not be liable for any incidental or consequential losses, damages or expenses, arising directly or indirectly from the
product, whether such claim is based upon breach of contract, breach of warranty, negligence, strict liability in tort or any other legal
theory. Without limiting the generality of the foregoing, Woods specifically disclaims any damages relating to (i) lost profits, business,
revenues or goodwill; (ii) loss of crops; (iii) loss because of delay in harvesting; (iv) any expense or loss incurred for labor, supplies, substitute
machinery or rental; or (v) any other type of damage to property or economic loss.
This Warranty is subject to any existing conditions of supply which may directly affect WOODS’ ability to obtain materials or manufacture
replacement parts.
No agent, representative, dealer, distributor, serviceperson, salesperson, or employee of any company, including without limitation, WOODS,
its authorized dealers, distributors, and service centers, is authorized to alter, modify, or enlarge this Warranty.
Answers to any questions regarding warranty service and locations may be obtained by contacting:

F-3079 (Rev. 6/1/2007)

WARRANTY
(Replacement Parts For All Models Except Mow’n MachineTM
Zero-Turn Mowers and Woods BoundaryTM Utility Vehicles)
Woods Equipment Company (“WOODS”) warrants this product to be free from defect in material and
workmanship for a period of ninety (90) days from the date of delivery of the product to the original purchaser
with the exception of V-belts, which will be free of defect in material and workmanship for a period of 12 months.
Under no circumstances will this Warranty apply in the event that the product, in the good faith opinion of
WOODS, has been subjected to improper operation, improper maintenance, misuse, or an accident. This Warranty
does not cover normal wear or tear, or normal maintenance items.
This Warranty is extended solely to the original purchaser of the product. Should the original purchaser sell or
otherwise transfer this product to a third party, this Warranty does not transfer to the third party purchaser in any
way. There are no third party beneficiaries of this Warranty.
WOODS’ obligation under this Warranty is limited to, at WOODS’ option, the repair or replacement, free of
charge, of the product if WOODS, in its sole discretion, deems it to be defective or in noncompliance with this
Warranty. The product must be returned to WOODS with proof of purchase within thirty (30) days after
such defect or noncompliance is discovered or should have been discovered, routed through the dealer and
distributor from whom the purchase was made, transportation charges prepaid. WOODS shall complete
such repair or replacement within a reasonable time after WOODS receives the product. THERE ARE NO
OTHER REMEDIES UNDER THIS WARRANTY. THE REMEDY OF REPAIR OR REPLACEMENT IS THE
SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY.
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE OF THIS
WARRANTY. WOODS MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, AND WOODS
SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY AND/OR ANY
IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
WOODS shall not be liable for any incidental or consequential losses, damages or expenses, arising directly
or indirectly from the product, whether such claim is based upon breach of contract, breach of warranty,
negligence, strict liability in tort or any other legal theory. Without limiting the generality of the foregoing,
Woods specifically disclaims any damages relating to (i) lost profits, business, revenues or goodwill; (ii) loss of
crops; (iii) loss because of delay in harvesting; (iv) any expense or loss incurred for labor, supplies, substitute
machinery or rental; or (v) any other type of damage to property or economic loss.
This Warranty is subject to any existing conditions of supply which may directly affect WOODS’ ability to obtain
materials or manufacture replacement parts.
No agent, representative, dealer, distributor, service person, salesperson, or employee of any company, including
without limitation, WOODS, its authorized dealers, distributors, and service centers, is authorized to alter, modify,
or enlarge this Warranty.
Answers to any questions regarding warranty service and locations may be obtained by contacting:

Woods Equipment
Company
2606 South Illinois Route 2
Post Office Box 1000
Oregon, Illinois 61061
815-732-2141 tel
815-732-7580 fax
www.WoodsEquipment.com

©1995 Woods Equipment Company. All rights reserved. WOODS, the Woods logo, and "Tested. Proven. Unbeatable." are trademarks of Woods
Equipment Company. All other trademarks, trade names, or service marks not owned by Woods Equipment Company that appear in this manual are
the property of their respective companies or mark holders. Specifications subject to change without notice.
F-8494 (Rev. 6/23/2005)

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