Woods RM550 User manual

Serial Number 701100 and Above
PN-55191 (Rev. 11/29/2002)
REARMOUNT
RM550
RM660
OPERATOR’S MANUAL

ii Introduction (Rev. 11/6/2002)
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 Warranty Registration included in this manual. Both dealer and customer must sign the
registration which certifies that all Dealer Check List items have been completed. The dealer is to return the prepaid
postage portion to WOODS, give one copy to the customer, and retain one copy. Note: Warranty credit is subject to
this form being completed and returned.
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 the adjustment and operating procedures before attempting to operate. Replacement
manuals can be obtained from your dealer or, in the United States and Canada, by calling 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 IMPORTANT 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.
This Safety-Alert Symbol indicates a hazard and means
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Indicates an imminently hazardous situation that, if not avoided, will
result in death or serious injury.
Indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury, and includes hazards that are
exposed when guards are removed.
Indicates a potentially hazardous situation that, if not avoided, may
result in minor or moderate injury.
Indicates that failure to observe can cause damage to equipment.
NOTE Indicates helpful information.

1
PN 55191 (4/22/99)
TABLE OF CONTENTS
INTRODUCTION ii...............................................
SPECIFICATIONS 1..............................................
GENERAL INFORMATION 2......................................
BOLT SIZE CHART 2.............................................
BOLT TORQUE CHART 3.........................................
SAFETY RULES 4--6............................................
SAFETY DECALS 7--8...........................................
OPERATION 9...................................................
OWNER SERVICE 14...........................................
DEALER SERVICE 18...........................................
TROUBLE SHOOTING 24--25.....................................
ASSEMBLY INSTRUCTIONS 26..................................
INDEX TO PARTS LISTS 31......................................
INDEX 44......................................................
PRODUCT WARRANTY Inside Back Cover..........................
REPLACEMENT PARTS WARRANTY Back Cover...................
SPECIFICATIONS
RM550 RM660
3-Point Hitch Category I Category I..........................................
Cutting Width 60” 72”................................................
Cutting Height Range 1.5” -- 6” 1.5” -- 6”.....................................
Shipping Weight (Approximate) 500 lbs. 550 lbs.............................
Blade Speed (feet per minute) 15,080 16,480..............................
Blade Speed (RPM) 2,776 2,554........................................
Blades Spindles 3 3................................................
Number of Blades 3 3..............................................
Universal Drive Series 40 40........................................
Caster Wheels 3.5 x 10.25 3.5 x 10.25........................................
Tractor PTO Speed RPM 540 540......................................
Recommended Maximum Tractor Horsepower 35 35....................
Mower Frame Thickness 8 GA 8 GA.....................................
(Rev. 6/6/2002)

2PN 55191 (4/22/99)
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 perform-
ance. 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.
The illustrations and data used in this manual were
current at the time of printing, but 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.
WARNING
JSome 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 shield-
ing removed.
Throughout this manual, references are made to right
and left direction. These are determined by standing
behind the equipment facing the direction of forward
travel. Blade rotation is clockwise as viewed from the
top of the mower.
BOLT SIZE CHART
NOTE: Chart shows bolt thread sizes and corresponding head (wrench) sizes for standard SAE and Metric Bolts.
8MM 10MM 12MM 14MM 16MM 18MM
175150125100755025
IN
MM
17 65432
7/83/45/81/23/85/16
SAE Bolt Thread Sizes
Metric Bolt Thread Sizes

3
PN 55191 (4/22/99)
BOLT TORQUE CHART
Always tighten hardware to these values unless adifferent 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 & J1701M JUL96.
SAE Grade 2
(No Dashes) SAE Grade 5 (3 Radial Dashes) SAE Grade 8 (6 Radial Dashes)
SAE SERIES
TORQUE
CHART
A
SAE Bolt Head
Identification
A
MARKING ON HEAD
D
i
a
m
e
t
e
r
A
Wrench SAE 2 SAE 5 SAE 8
D
i
a
m
e
t
e
r
(
Inches
)
W
r
e
n
c
h
Size Lbs.-Ft. N-m Lbs.-Ft. N-m Lbs.-Ft. N-m
1/4 7/16” 6 8 10 13 14 18
5/16 1/2” 12 17 19 26 27 37
3/8 9/16” 23 31 35 47 49 67
7/16 5/8” 36 48 55 75 78 106
1/2 3/4” 55 75 85 115 120 163
9/16 13/16” 78 106 121 164 171 232
5/8 15/16” 110 149 170 230 240 325
3/4 1-1/8” 192 261 297 403 420 569
7/8 1-5/16” 306 416 474 642 669 907
11-1/2” 467 634 722 979 1020 1383
SAE Grade 8
(
6
R
a
d
i
a
l
D
a
s
h
e
s
)
SAE Grade 5
(
3
R
a
d
i
a
l
D
a
s
h
e
s
)
SAE Grade 2
(
N
o
D
a
s
h
e
s
)
SAETORQUE CHART
Bolt Head Markings
D
i
a
m
e
t
e
r
A
COARSE THREAD FINE THREAD
D
i
a
m
e
t
e
r
A
D
i
ame
t
er
&
A
MARKING ON HEAD MARKING ON HEAD
D
i
ame
t
er
&
A
&
Thread Pitch Wrench Metric 8.8 Metric 10.9 Metric 8.8 Metric 10.9
&
Thread Pitch
(Millimeters)
W
r
e
n
c
h
Size N-m Lbs.-Ft. N-m Lbs.-Ft. N-m Lbs.-Ft. N-m Lbs.-Ft. (Millimeters)
6x1.0 10 mm 8 6 11 8 8 6 11 86x1.0
8 x 1.25 13 mm 20 15 27 20 21 16 29 22 8x1.0
10 x 1.5 16 mm 39 29 54 40 41 30 57 42 10 x 1.25
12 x 1.75 18 mm 68 50 94 70 75 55 103 76 12 x 1.25
14 x 2.0 21 mm 109 80 151 111 118 87 163 120 14 x 1.5
16 x 2.0 24 mm 169 125 234 173 181 133 250 184 16 x 1.5
18 x 2.5 27 mm 234 172 323 239 263 194 363 268 18 x 1.5
20 x 2.5 30 mm 330 244 457 337 367 270 507 374 20 x 1.5
22 x 2.5 34 mm 451 332 623 460 495 365 684 505 22 x 1.5
24 x 3.0 36 mm 571 421 790 583 623 459 861 635 24 x 2.0
30 x 3.0 46 mm 1175 867 1626 1199 1258 928 1740 1283 30 x 2.0
Typical Washer Installations
Nut
Bolt Lockwasher Flat
Washer
(Rev. 6/6/2002)

4PN 55191 (4/22/99)
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.
In addition to the design and configuration of
equipment, hazard control and accident preven-
tion are dependent upon the awareness, con-
cern,judgement,andpropertrainingofpersonnel
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 youto be that
kind of operator.
TRAINING
JSafety instructions are important! Read all at-
tachment and power unit manuals; follow all safety
rules and safety decal information. (Replacement
manuals are available from dealer or, in the United
States and Canada, call 1-800-319-6637.) Failure to
follow instructions or safety rules can result in
serious injury or death.
JIf you do not understand any part of this
manual and need assistance, see your dealer.
JKnow your controls and how to stop engine
and attachment quickly in an emergency.
JOperators must be instructed in and be capa-
ble of the safe operation of the equipment, its
attachments and all controls. Do not allow anyone
to operate this equipment without proper instruc-
tions.
JNever allow children or untrained persons to
operate equipment.
PREPARATION
JCheck that all hardware is properly installed.
Always tighten to torque chart specifications
unless instructed otherwise in this manual.
JAlways wear relatively tight and belted cloth-
ing to avoid entanglement in moving parts. Wear
sturdy, rough-soled work shoes and protective
equipmentfor eyes,hair, hands,hearing and head.
JMake sure implement is properly attached, ad-
justed and in good operating condition.
JMake sure spring-activated locking pin or
collar slides freely and is seated firmly in tractor
PTO spline groove.
JPower 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 systemsin “locked up” position at alltimes.
JRemove accumulated debris from this equip-
ment, tractor and engine to avoid fire hazard.
JMake sure all safety decals are installed.
Replaceifdamaged.(SeeSafetyDecalssectionfor
location.)
JMake sure shields and guards are properly
installed and in good condition. Replace if dam-
aged.
JA minimum 20% of tractor and equipment weight
must be on tractor front wheels with attachments in
transport position. Without this weight, tractorcould
tip over causing personal injury or death. The weight
may be attained with a loader, front wheel weights,
ballast in tires or front tractor weights. Weigh the
tractor and equipment. Do not estimate.
JInspect and clear area of stones, branches or
other hard objects that might be thrown, causing
injury or damage.
OPERATIONAL SAFETY
JDo not operate mower unless discharge chute
is installed and in good condition. Replace if
damaged.
JKeep bystanders away from equipment.
JNever go underneath equipment lowered to the
ground or raised, unless it is properly blocked and
secured. Never place any part of the body under-
neath equipment or between moveable parts even
when the engine has been turned off. Hydraulic
system leak down, hydraulic system failures, me-
chanical failures or movement of control levers can
cause equipment to drop or rotate unexpectedly
and cause severeinjuryor death. FollowOperator’s
Manual instructions for working underneath and
blocking requirements, or have work done by a
qualified dealer.
JNever direct discharge toward people, animals
or property.
JDo not operate equipment while under the
influence of alcohol or drugs.
JOperate only in daylight or good artificial light.
JKeep hands, feet, hair and clothing away from
equipmentwhileengineisrunning.Stayclearofall
moving parts.
JAlways comply with all state and local lighting
and marking requirements.
JNever allow riders on power unit or attach-
ment.
(Rev. 6/6/2002)

5
PN 55191 (4/22/99)
SAFETY RULES
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
JPower 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 systemsin “locked up” position at alltimes.
JAlways sit in tractor 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 tractor engine.
JOperate tractor PTO at RPM speed stated in
“Specifications” section.
JDo not operate tractor PTO during transport.
JLook down and to the rear and make sure area is
clear before operating in reverse.
JDo not operate on steep slopes.
JDo not stop, start or change directions sud-
denly on slopes.
JUse extreme care and reduce ground speed on
slopes and rough terrain.
JWatch for hidden hazards on the terrain during
operation.
JStop tractor and implement immediately upon
striking an obstruction. Turn off engine, remove
key, inspect and repair any damage before resum-
ing operation.
JBefore dismounting tractor or performing any
service or maintenance, disengage power toimple-
ment, 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.
JBefore performing any service or maintenance,
disconnect driveline from tractor PTO.
JLower implement to ground or block securely,
turntractorengineoff, remove keyand disconnect
driveline from tractor PTO before performing any
service or maintenance.
MAINTENANCE SAFETY
JBefore dismounting tractor or performing any
service or maintenance, disengage power toimple-
ment, 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.
JLower implement to ground or block securely,
turntractorengineoff, remove keyand disconnect
driveline from tractor PTO before performing any
service or maintenance.
JDo not modify or alter or permit anyone else to
modify or alter the equipment or any of its
components in any way.
JAlways wear relatively tight and belted cloth-
ing to avoid entanglement in moving parts. Wear
sturdy, rough-soled work shoes and protective
equipmentfor eyes,hair, hands,hearing and head.
JMake sure implement is properly attached, ad-
justed and in good operating condition.
JKeep all persons away from operator control
area while performing adjustments, service or
maintenance.
JMake certain all movement of implement com-
ponents has stopped before approaching for
service.
JFrequently check blades. They should be
sharp, free of nicks and cracks and securely
fastened.
JUse 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, meet-
ing the non-loosening requirements for this
application.
JDo not handle blades with bare hands. Care-
less or improper handling may result in serious
injury.
JYour dealer can supply genuine replacement
blades. Substitute blades may not meet original
equipment specifications and may be dangerous.
JTighten 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 operating.
JMake sure all safety decals are installed.
Replaceifdamaged.(SeeSafetyDecals sectionfor
location.)
JMake sure shields and guards are properly
installed and in good condition. Replace if dam-
aged.
STORAGE
JBlock equipment securely for storage.
JKeep children and bystanders away from
storage area.
(Rev. 6/6/2002)

6PN 55191 (4/22/99)
SAFETY & INSTRUCTIONAL DECALS
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Replace Immediately If Damaged!
1 -- Part #18864
2 -- Part #18863
7 -- Serial Number Plate
RM550 SHOWN;
RM660 SIMILAR
4 -- Part #18869
3 -- Part #18867
CD3977B
10
1
11
2
7
8
1
9
35
6
3
3
4
4
MODEL NO. SERIAL NO. YR OF MFG.
MASS (KG)
ID NO.
OREGON, IL U.S.A.
DANGER
SHIELD MISSING
Do not operate.
Put shield on. 18867-A
SHIELD MISSING
DO NOT OPERATE -- PUT SHIELD ON
DANGER
18869-B
ROTATING DRIVELINE
CONTACT CAN CAUSE DEATH
KEEP AWAY!
DO NOT OPERATE WITHOUT--
DANGER
18864--C
GAll driveline guards, tractor and
equipment shields in place
GDrivelines securely attached at both
ends
GDriveline guards that turn freely on
driveline (Safety Decals continued on next page)

7
PN 55191 (4/22/99)
SAFETY & INSTRUCTIONAL DECALS
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Replace Immediately If Damaged!
6 -- Part #18877 5 -- Part #18865
(Safety Decals continued from previous page)
8 -- Part #18866
9--
Part #33347
10 -- Part #53597
GUARD MISSING.
DO NOT OPERATE.
GUARD MISSING.
DO NOT OPERATE.
DANGER
33347E
DANGER
DANGER
11 -- Part #53596
FALLING OFF CAN RESULT IN BEING RUN OVER.
HTractor must be equipped with ROPS (or ROPS CAB) and seat belt.
Keep foldable ROPS systems in “locked up” position at all times.
HBuckle Up! Keep seat belt securely fastened.
HAllow no riders.
RAISED EQUIPMENT CAN DROP AND CRUSH.
HBefore working underneath, follow all instructions and safety rules in
operator’s manual and securely block up all corners of equipment
with jack stands.
HSecurely 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.
WARNING
18865--C
PTO speeds higher than 540 RPM can cause
equipment failure and personal injury.
OPERATE PTO AT
540 RPM.
WARNING
18866--C

8PN 55191 (4/22/99)
NOTES
(Rev. 6/6/2002)

9
PN 55191 (4/22/99)
OPERATION
Safety is a primary concern in the design and
manufacture of our products. Unfortunately, our
efforts to provide safe equipment can be wiped
out by an operator’s single careless act.
In addition to the design and configuration of
equipment, hazard control and accident preven-
tion are dependent upon the awareness, con-
cern,judgement,andpropertrainingofpersonnel
involved in the operation, transport, maintenance
and storage of equipment.
It has been said “The best safety device is an
informed,carefuloperator.”Weaskyoutobethat
kind of operator.
The operator is responsible for the safe operation of
this mower. The operator must be properly trained.
Operators should be familiar with the mower and
tractor and all safety practices before starting opera-
tion. Read the safety information on pages 4 through
7.
This mower is designed for lawn and grass mowing. It
is not designed for rough conditions or heavy weed
mowing. It is equipped with suction type blades for
best results in lawn mowing. Optional blades with less
suction are available for use in sandy areas.
Recommended mowing speed for most conditions is
fromtwotofivemph.
WARNING
JNever allow children or untrained per-
sons to operate equipment.
JKeep bystanders away from equip-
ment.
JNever go underneath equipment low-
ered to the ground or raised, unless it is
properly blocked and secured. Never place
any part of the body underneath equipment
or between moveable parts even when the
engine has been turned off. Hydraulic sys-
tem leak down, hydraulic system failures,
mechanical failures or movement of control
levers can cause equipment to drop or ro-
tate unexpectedly and cause severe injury
or death. Follow Operator’s Manualinstruc-
tions for working underneath and blocking
requirements, or have work doneby aquali-
fied dealer.
WARNING
JKeep all persons away from operator
control area while performing adjust-
ments, service or maintenance.
JMake sure spring-activated locking
pin or collar slides freely and is seated
firmly in tractor PTO spline groove.
JOperate tractor PTO at RPM speed
stated in “Specifications” section.
CAUTION
JStop tractor and implement immedi-
ately upon striking an obstruction. Turn
off engine, remove key, inspect and repair
any damage before resuming operation.
JAlways 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.
Tractor Stability (Figure 1)
WARNING
JA minimum 20% of tractor and equip-
mentweightmustbeontractorfrontwheels
with attachments in transport position.
Without this weight, tractor could tip over
causing personal injury or death. The
weight may be attained with a loader, front
wheel weights, ballast in tires or front
tractor weights. Weigh the tractor and
equipment. Do not estimate.
CD3550B
Figure 1. Tractor Stability
(Rev. 6/6/2002)

10 PN 55191 (4/22/99)
Top Link Adjustment (Figure 2)
B
A1
CD3944 1. Tractor top link
A. Mower top link
attachment point
B. Mower hitch pin
Figure 2. 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.”
Attaching Mower to Tractor (Figure 5)
The standard 1-3/8” 6B spline driveline with a QD
yoke is used to connect mower to tractor.
Attach the mower hitch pins to lower tractor lift arms
and secure.
Attach tractor top link (1) to offset links (9). Connect
the driveline to the tractor PTO shaft.
WARNING
JMake sure spring-activated locking
pin or collar slides freely and is seated
firmly in tractor PTO spline groove.
Adjust the tractor lower 3-point arm anti-sway devices
to prevent mower from swinging side to side during
transport.
Cutting Height Adjustment (Figure 3)
IMPORTANT
JAvoid low cutting heights. Striking the
ground with blades produces one of the
most damaging shock loads a mower can
encounter. Allowing blades to contact
ground repeatedly will cause damage to
mower and drive.
WARNING
JKeep all persons away from operator
control area while performing adjust-
ments, service or maintenance.
CD3551B
BA
FORWARD
Figure 3. Cutting Height Adjustment
Level mower from side to side. Check by measuring
from mower frame to the ground at each deck rail.
Adjust, using tractor 3-point arm leveling device.
Best mowing results will be obtained with front of
mower level with or slightly lower than the rear.
Cutting height is controlled with tractor 3-point arms
and front and rear caster wheel adjustment. Optional
check chains are available.
WARNING
JNever go underneath equipment low-
ered to the ground or raised, unless it is
properly blocked and secured. Never
place any part of the body underneath
equipment or between moveable parts
even when the engine has been turned off.
Hydraulic system leak down, hydraulic
system failures, mechanical failures or
movement of control levers can cause
equipment to drop or rotate unexpectedly
and cause severe injury or death. Follow
Operator’s Manual instructions for work-
ing underneath and blocking
requirements, or have work done by a
qualified dealer.
To raise rear of mower, move caster adjustment
spacers under caster arms. Hex opening of blade
wrench fits bolts on top of caster shaft.
To raise front of mower, raise tractor 3-point arms,
shorten optional check chains or move spacers under
front caster wheel arms.
The cutting height is the distance between the blade
and the ground. The blades are 7-3/4” below the top
of the deck rail on the RM550 (8-3/4” below the top of
the deck rail on the RM660). To check cutting height,
place a straight edge along top edge of deck rail as
shown in Figure 3.
Measure from bottom of straight edge to the ground
at locations “A” and “B”. Subtract 7-3/4” on RM550
(8-3/4” on RM660) from measurement “B” to deter-
mine cutting height.

11
PN 55191 (4/22/99)
Spacers Required
Under Caster Arm Pivot Tube
Cutting 1/2” 3/4” 1” 1-1/4”
Height Spacer Spacer Spacer Spring
1-1/2”
2” 1
2-1/2” 1
3” 11
3-1/2” 2
4” 12
4-1/2” 111
5” 1111
5-1/2” 121
6” 1121
CUTTING HEIGHT CHART
Remember, measurement at location “A” should not
be less than location “B” and should not be over 1/2”
greater than location “B”
Tractor Top Link Adjustment
(Figure 4 & Figure 5)
Adjust tractor top link so mower is level at 16”
between caster wheel and ground (dimension C,
Figure 4). This will allow the mower to follow ground
contour.
Front Caster Wheel Interference Check
(Figure 4) IMPORTANT
JDonotoperatetractorand moweruntil
this interference check has been per-
formed. If you change tractors, you must
perform the check for that mounting.
Perform this check with all of the spacers and springs
above the caster wheel arm. This will place the caster
wheels in their highest position and provide the lowest
cutting height for the mower.
Raise mower with tractor hydraulics to 16” at
dimension “C” or maximum height of tractor lift,
whichever is less.
Pivot both front caster wheels forward and check that
there is clearance between caster wheels and tractor
tires. If there is interference, you must not use front
caster wheels on the mower with this tractor.
Optional check chains are available and may be used
to control front deck height.
“C”
CD3528C
Figure 4. Front Gauge Wheel Interference Check
Optional Check Chain Attachment
(Figure 5)
Attach check chain brackets (3) and the tractor top
link (1) to tractor top link attachment point with cap
screw (7) and hex locknut (8) as shown. Always
maintain the same number of links on each chain.
Connect rear end of tractor top link (1) to mower’s
floating top link (9) with high-strength clevis pin and
retaining pin supplied with top link.
Top link adjustment will be required when cutting
height is set.

12 PN 55191 (4/22/99)
1. Tractor top link
2. Tractor top link attachment point
3. Check chain bracket
4. Check chain
5. Snap ring
6. Mounting lug
7. 3/4 NC x 6” Hex head cap screw GR5
8. 3/4 NC Hex locknut
9. Floatin
g
to
p
link
CD3557D
19
8
23
7
5
4
6
Figure 5. Check Chain & Top Link Adjustment
Front Roller (Optional)
The caster wheels and side skids effectively reduce
scalping in most cases. However, you may encounter
areas where the caster wheels 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.
Pre-Operation Check List
(OWNER RESPONSIBILITY)
Review and follow safety rules on pages 4
through 7.
Check that mower is properly and securely
attached to tractor.
Make sure driveline spring-activated locking pin
slides freely and is seated firmly in tractor PTO
spline groove.
Operate tractor PTO at 540 rpm.
Lubricate all grease fitting locations. Make sure
PTO shaft slip joint is lubricated.
Check to be sure gearbox is half-full of SAE 90W
gear lube.
Check that all hardware is properly installed and
secured.
Check to ensure blades are sharp and secure
and cutting edge is positioned to lead in a
clockwise rotation.
Check that all shields and guards are properly
installed and in good condition.
Check cutting height and attitude adjustment.
Place tractor PTO and transmission in neutral
before starting engine.
Inspect area to be cut and remove stones,
branches or other hard objects that might be
thrown, causing injury or damage.
IMPORTANT
JMower vibration tends to loosen bolts
during operation. All hardware should be
checked regularly to maintain proper
torque. It is a good practice to check
mower beforeeach operation to ensure all
hardware is secure.
Operating Technique
Power for operating mower is supplied by tractor
PTO. Operate PTO at 540 rpm. Know how to stop
tractor and mower quickly in case of an emergency.
Should mower become plugged, causing belt to slip
for over two seconds, 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
in contact with a very hot pulley will bake and ruin belt.
CAUTION
JStop tractor and implement immedi-
ately upon striking an obstruction. Turn
off engine, remove key, inspect and repair
any damage before resuming operation.
Proper ground speed willdepend upon the terrain, 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;
thin medium-height material can be cut at a faster
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 your ground speed, but maintain PTO at 540
rpm. The lower ground speed will permit grass to at
least partially rebound.
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.

13
PN 55191 (4/22/99)
Tips
WARNING
JInspect 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. Set
mower at a higher cutting height for the first pass.
Then cut at desired height at 90°to the first pass.
Remember, sharp blades produce cleaner cuts and
require less power.
Analyze area to be cut to determine the best
procedure. Consider height and type of grass and
terrain type: hilly, level or rough.
Plan your mowing pattern to travel straight forward
whenever possible. Mow with uncut grass to the left.
This will distribute the clippings over the cut area.
Discharging clippings over uncut grass will cause a
buildup and may prevent uniform cutting.
Uneven Terrain
WARNING
JDo not operate on steep slopes.
JDo notstop, startor changedirections
suddenly on slopes.
JUse extreme care and reduce ground
speed on slopes and rough terrain.
JWatch for hidden hazards on the ter-
rain during operation.
Pass diagonally through sharp dips and avoid sharp
drops to prevent “hanging up” tractor and mower.
Practice will improve your skills in maneuvering rough
terrain.
Removing Mower from Tractor (Figure 6)
Disengage tractor PTO, raise mower with 3-point
hitch and remove check chains (if installed) from
brackets attached to tractor top link brackets.
Disconnect mower driveshaft from tractor PTO.
Collapse driveshaft as far as possible and store it in
PTO hanger bracket to prevent ground contact. Place
blocks under mower side skids. Lower mower onto
blocks, disconnect mower from tractor 3-point hitch,
and carefully drive tractor away from mower.
CD4582D
Figure 6. Mower Storage Position
NOTES

14 PN 55191 (4/22/99)
OWNER SERVICE
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.
WARNING
JNever go underneath equipment low-
ered to the ground or raised, unless it is
properly blocked and secured. Never place
any part of the body underneath equipment
or between moveable parts even when the
engine has been turned off. Hydraulic sys-
tem leak down, hydraulic system failures,
mechanical failures or movement of control
levers can cause equipment to drop or ro-
tate unexpectedly and cause severe injury
or death. Follow Operator’s Manualinstruc-
tions for working underneath and blocking
requirements, or have work doneby aquali-
fied dealer.
JKeep all persons away from operator
control area while performing adjust-
ments, service or maintenance.
CAUTION
JAlways 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.
BLOCKING METHODS
Jackstands, with a load rating of 1,000 pounds or
more, are the only approved blocking device for this
mower. A minimum of four jackstands, located under
the mower as shown in Figure 7A, must be installed
before working underneath this unit. Do not position
jackstands 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.
For the mounted unit, tighten tractor lower 3-point
arm anti-sway mechanisms to prevent side to side
movement.
When blocking, you must consider overall stability of
the unit. Just placing jackstands 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 jackstands are stable both top and bottom,
and mower is approximately level. With full mower
weight lowered on jackstands, test blocking stability
before working underneath mower.
CD4015Var
Figure 7A. Jackstand Placement
(Tractor and connection not shown)
LUBRICATION INFORMATION (Figure 7)
Do not let excess grease collect on or around parts,
particularly when operating in sandy areas.
Figure 7 shows the lubrication points. The accompa-
nying chart gives the frequency of lubrication in
operating hours, based on normal operating condi-
tions. Severe or unusual conditions may require more
frequent lubrication. Some reference numbers have
more than one location; be sure you lubricate all
locations.
Use a lithium grease of #2 consistency with a MOLY
(molybdenum disulfide) additive for all locations. Be
sure to clean fittings thoroughly before attaching
grease gun. When applied according to the lubrication
chart, one good pump of most guns is sufficient.
Use SAE 90W gear lube in the gearbox. Check
gearbox using dipstick. Oil level is to be up to the ring
but not over. See Figure 7.
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.
Overfilling the gearbox will cause the excess gear
lube to blow out vent plug. The gear lube could then
ruin the belt.

15
PN 55191 (4/22/99)
Driveshaft Lubrication
Lubricate the driveshaft slip joint every 8 operating
hours. Failure to maintain proper lubrication could
result in damage to U-joints, gearbox and driveshaft.
Lower mower to ground.
Apply grease at location as shown in Figure 7.
Raise and lower mower several times to distribute
grease.
CD3536D
7
NORMAL
FLUID
RANGE
1
2
4
9
3
8
98
56
10 11
Ref No Description Frequency
1 Front U-Joint 8 hours
2 Slip Joint (1 location on shaft, access through slot) 8 hours
3 Rear U-Joint 8 hours
4 Right Spindle (Access through slot) 24 hours
5 Center Spindle (Access through slot) 24 hours
6 Left Spindle (Access through end of shield) 24 hours
7 Gearbox (Fill to center of horizontal shaft with Check
SAE 90W gear lube) Daily
8 Caster Wheel (Right and Left) 8 hours
9 Caster Pivot (Right and Left) 8 hours
10 Front Caster Wheel Pivot (Right and Left) 8 hours
11 Front Caster Wheel (Right and Left) 8 hours
Figure 7. Lubrication Points

16 PN 55191 (4/22/99)
BELT REPLACEMENT (Figure 8)
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 clean-
ing, moisten a cloth 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 pulleygroove. Do not roll belt over
pulleys to install. This can cause hidden damage and
premature belt failure.
IMPORTANT
JUse care when installing or removing
belt from spring-loaded idler at step 5.
Springs store energy when extended and,
if released suddenly, can cause personal
injury.
G
1/8”
CD3546A
AB
C
D
EF
Figure 8. Belt Routing
1. Disconnect idler spring from deck lug.
2. Slidebeltunderdrivepulley“A”andoveridlerarm.
Position belt around drive pulley “A”.
3. Loosen bolt holding belt guide “G” and swing it
awayfrompulley“B”.Route beltaroundpulley“B”,
idler “C” and pulley “D” as shown.
4. Make sure belt is on drive pulley “A”, route around
idler “F”, and connect idler spring to lug on deck.
5. Grasp belt between spindle pulley “E”, spring-
loaded idler “F” and spindle pulley “D”. Pull spring
loaded idler with belt to obtain enough belt length
torouteitoverpulley“C”.Makesurespring-loaded
idler pivots freely with belt installed.
6. Adjust belt guide “G” to provide 1/16” to 1/8”
clearance from belt. Tighten bolt to 85 lbs.-ft.
BLADE SERVICING
Inspect blades for condition and proper installation each
time before operation. Replace any blade that is bent,
excessively nicked, worn or has any other damage.
Small nicks can be ground out when sharpening.
WARNING
JBefore performing any service or
maintenance, disconnect driveline from
tractor PTO.
JKeep all persons away from operator
control area while performing adjust-
ments, service or maintenance.
Blade Removal (Figure 9)
CD3558A
1
2
3
45
6
7RM550 SHOWN;
RM660 SIMILAR.
1. Spindle lock wrench
2. Pulley
3. Shoulder washer
4. Blade
5. 5/8 Standard flat washer
6. 5/8 x 1-3/4 x 14 GA Cup washers
7. 5/8 NC x 2 Hex head cap screw GR5 Nylok
Figure 9. Blade Installation
Remove belt shields.
Install spindle lock wrench (1) onto spindle pulley as
shown. Remove cap screw (7) which has RIGHT
HAND THREADS. Remove cup washers (6), washer
(5) and blade (4).
Shoulder washer (3) will not normally come off unless
intentionally removed.

17
PN 55191 (4/22/99)
Blade Installation (Figure 9)
CAUTION
JYour dealer can supply genuine re-
placement blades. Substitute blades may
not meet original equipment specifica-
tions and may be dangerous.
Install spindle lock wrench (1) onto spindle pulley as
shown. Install shoulder washer (3) (if removed), small
end up. Make sure blade cutting edge is positioned to
lead in clockwise rotation, as viewed from top of
mower.
Excessive blade slipping can cause cup washers to
burn and lose their clamping force. Inspect cup
washers to determine if they are burned or have lost
their clamping force. Replace as necessary.
IMPORTANT
JWe recommend you install a new
Nylok blade bolt when you replace the
blade.
Install two cup washers (6), washer (5) and blade (4)
on cap screw. Install cap screw and blade assembly
into spindle. Torque cap screw to 170 lbs.-ft. Remove
blade wrench from pulley. Replace belt shields.
IMPORTANT
JDo not substitute any bolt for the
special blade bolt. It is self-locking, meet-
ing the non-loosening requirements for
this application.
Blade Sharpening (Figure 10)
Remove blades.
Always sharpen both ends at the same time to
maintain balance. Follow original sharpening pattern.
Do not sharpen blade to a razor edge. Leave from
1/32” to 1/16” blunt edge. Do not sharpen back side.
IMPORTANT
JWhen sharpening blades, be sure to
balance them. Unbalanced blades will
cause excessive vibration which can dam-
ageblade spindle bearings. Vibrationmay
also cause structural cracks in mower
components.
MAINTAIN CORNER
FOLLOW ORIGI-
NAL
PATTERN
1/32″
CD3627
Figure 10. Blade Sharpening
NOTES

18 PN 55191 (4/22/99)
DEALER SERVICE
The information in this section is written for dealer
service personnel. The repair described herein re-
quires 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.
WARNING
JNever go underneath equipment low-
ered to the ground or raised, unless it is
properly blocked and secured. Never place
any part of the body underneath equipment
or between moveable parts even when the
engine has been turned off. Hydraulic sys-
tem leak down, hydraulic system failures,
mechanical failures or movement of control
levers can cause equipment to drop or ro-
tate unexpectedly and cause severe injury
or death. Follow Operator’s Manualinstruc-
tions for working underneath and blocking
requirements, or have work doneby aquali-
fied dealer.
JKeep all persons away from operator
control area while performing adjust-
ments, service or maintenance.
CAUTION
JAlways 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.
BLOCKING METHOD
Refer to instructions on page 14.
SPINDLE REPAIR
Blade Spindle Removal (Figure 11)
Remove belt shield.
Remove blade from spindle. (See Blade Removal on
page 16 in Owner Service section.)
Remove belt from pulleys.
Remove cap screw and flat washer from top of
spindle shaft.
Disassemble split taper bushing (located on top of
pulley) by removing the two cap screws and inserting
them into the threaded holes in bushing flange.
Tighten cap screws alternately to remove split taper
bushing.
Remove pulley.
Remove grease fitting extension.
Remove the cap screws attaching spindle to mower
frame and remove spindle.
Spindle Repair Tips
As a reference point, the top of spindle housing is the
short portion.
To minimize wear, bearing cups, cones and sleeves
are press fit to 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 drive cup out. Alternate punch positions
from side to side. Use care to prevent housing
damage.
Bore-titesealant is used on the outer diameter of the
seals. Substitute seals may not meet original equip-
ment specifications and could cause leakage.
Blade Spindle Disassembly (Figure 11)
Support spindle in a press and push shaft (7) down
through housing (5).
Remove seals from housing.
Remove bearing cups from housing as described in
Spindle Repair Tips section.
Remove bearing cone (4) from shaft (7).
Blade Spindle Assembly (Figure 11)
Bearing cups and cones are designed to work
together. It is important to position them so bearing
cone taper mates with bearing cup taper.
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 drift on the flat lip
and driving them into housing.
Place bottom bearing cone (4) onto spindle shaft (7)
with taper up. Seat on bottom shoulder of shaft with a
press.
Insert shaft and bearing cone assembly through
bottom of housing (5). Fill housing cavity with a lithium
grease of #2 consistency with a MOLY (molybdenum
disulfide) additive. Place top bearing cone (4) on shaft
(7) to mate with top bearing cup.
IMPORTANT
JBearing adjustment is set by pressing
sleeve against bearing cone until proper
adjustment is attained.
Install sleeve (3) on shaft and press sleeve and
bearing cone onto shaft until all bearing free play is
removed and there is a slight drag (similar to adjusting
the front wheel bearings on an automobile). Check by
spinning spindle. It should turn freely.
Be careful not to overtighten bearings. Proper bearing
adjustment is essential to good bearing life.
Bore-tite is a registered trademark ofChicago Rawhide Industries.