Woods L503 F8N User manual

WOODS
ROTARY MOWER
L503 F8N
OP15RATOR'S MANUAL
PN-31533 (Rev. 2/20/98)
www.ntractorclub.com

TO THE DEALER:
The rotary mower assembly and proper installation to the tractor is the responsibility of the WOODS
dealer. Read manual instructions and safety rules. Make sure all items on the Pre-Delivery and
Delivery Check Lists are completed before releasing equipment tothe owner.
TO THE OWNER:
Read this manual before operating your WOODS rotary mower. The information presented will
prepare you to do a better and safer job. Keep this manual handy for ready reference. Require all
operatorsto readthis 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 rotary mower 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 unitas specified. Observe all safety information in this manual and safety decals onthe
rotary mower and tractor.
Forservice, yourauthorized WOODS dealer hastrained mechanics, genuineWOODS 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 requiredforsafe and satisfactory operation. Recordtheserial number ofyourrotarymower
in the space provided:
Model:
Serial Number: (see page 6 for location)
Provide this information to your dealer to obtain correct repair parts.
Throughout this manual, the term IMPORTANT is used to indicate thatfailure 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
,~ YOUR SAFETY IS IN-
A'n-ENTION.! BECOME ALERT].
VOLVED!
Indicates an imminently hazardous situa~on that, if not
avoided, will result in death or serious injury.
WARNING 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.
CAUTION Indicates a potentially hazardous situation that, ff not
avoided, may result in minor or moderate injury.
ii PN-31533 (Rev.2/20/98)
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TABLE OF CONTENTS
INTRODUCTION ................................................ Inside Front Cover
GENERAL INFORMATION ...................................................... 2
SPECIFICATIONS ............................................................. 2
SAFETY RULES ............................................................. 3-5
SAFETY DECALS .............................................................. 6
BOLT TORQUE CHART ........................................................ 7
BOLT SIZE CHART ............................................................ 8
OPERATION .................................................................. 9
OWNER SERVICE ............................................................ 13
DEALER SERVICE ............................................................ 16
TROUBLE SHOOTING .................................................... 18 & 19
ASSEMBLY INSTRUCTIONS ................................................... 20
INDEX TO PARTS LISTS ...................................................... 29
INDEX ....................................................................... 36
SAFETY WITH ROTARY MOWERS ......................................... 37 & 38
WARRANTY .................................................... Inside Back Cover
PN 31533 (Rev. 2/20/98) 1
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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 ableto 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
• 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 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.
SPECIFICATIONS
Cutting Width ................................................................. 59"
Cutting Height Range ..................................................... 1.5" - 4"
Blade Speed (RPM) ........................................................ 2,760
Blade Tip Speed (feet per minute) ........................................... 14,632
Blades Spindles ................................................................ 3
Number of Blades .............................................................. 3
Tractor PTO Speed RPM ...................................................... 540
Caster Wheels ......................................................... 3.25 x 6.25
Mower Frame Thickness ............................................. 8 Gauge Deck
2 PN 31533 (Rev.2/20/98)
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A
SAFETY RULES
ATTENTION.! BECOME ALERT.I YOUR SAFETY IS INVOLVED! ~IL
Safety is a primary (~oncernin the design and
manufacture of our products. Unfortunately, our
efforts to provide safe equipment can be wiped
out by a single careless act of an operator.
In addition to the design and configuration of
equipment, hazard control and accident preven-
tion are dependent uponthe awareness, con-
cern, prudence and proper training of personnel
involvedintheoperation,transport, maintenance
and storage of equipment.
It has been said "q'he best safety device is an
informed, careful operator." We ask you to be
that kindof an operator.
The designed and tested safety of this equipment
depends on it being operated within the limitations as
explained in this manual.
TRAINING
• Safety instructions are important! Read
all attachment and power unit manuals;
follow all safety rules and safety decal
information. (Replacement manuals are
available from dealeror, inthe United States
and Canada, call 1-800-319-6637.)Failure to
follow instructionsorsafetyrulescanresult
in sedous injury or death.
• If you do not understand any part of
this manual and needassistance, seeyour
dealer.
• Know your controls and how to stop
engine and attachment quickly in an
emergency.
• Operators must be instructed in and
be capable of the safe operation of the
equipment, its attachments and all con-
trols. Do not allow anyoneto operate this
equipment without proper instructions.
• Do not allow children or untrained
persons to operate equipment.
PREPARATION
• Check that all hardware is tight and
properly installed. Always tighten to
torque chart specifications.
• Always wear relativelytight 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.
• Ensure implement is properly attached,
adjusted and in good operating condition.
• Power unit must be equipped with
ROPS or ROPSCAB 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.
• Remove accumulated debris from this
equipment, tractorand engineto avoid fire
hazard.
• Ensure all safety decals are installed.
Replace if damaged. (See Safety Decals
section for location.)
• Ensureshields and guards areproper-
ly installed and in good condition. Re-
place if damaged.
• A minimum 20% of tractor and equip-
mentweight must beontractorfrontwheels
with attachments in transport position.
Without this weight, tractor could tip over
causing personal injury or death. The
weight may be attainedwith a loader, front
wheel weights, ballast in tires or front
tractor weights. When attaining the mini-
mum 20% weight on the front wheels, you
must not exceedthe Roll Over Protection
Structure (ROPS) weight certification.
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.
OPERATIONAL SAFETY
• Keep bystanders away from equip-
ment while it is in operation.
• Never go undemeath equipment low-
ered to the ground or raised, unless it is
propedy 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 require-
ments, or have work done by a qualified
dealer.
(Safety Rules continued on nextpage)
PN31533(Rev.2/20/98) 3
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A
SAFETY RULES
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVEDI.
(SafetyRules continued from previouspage)
[] Never direct discharge toward people,
animals or property.
• Do notoperateequipmentwhile under
the influence of alcohol or drugs.
• Operate only in daylight or good artifi-
cial light.
• Keep hands, feet, hair and clothing
away from equipment while engine is
running. Stayclear of all moving parts.
• Always comply with all state and local
lighting and marking requirements.
• No riders are allowed on equipment.
• Power unit must be equipped with
ROPS or ROPSCAB 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" positionatalltimes.
• Always sit in tractor seatwhen operat-
ing controls or starting engine. Securely
fasten seat belt, place transmission in
neutral, engagebrake and ensureall other
controls are disengaged before starting
tractor engine.
• Operate tractor PTO at RPM speed
stated in "Specifications" section.
• Do not operate tractor PTO during
transport.
• Look down and to the rear and make
sure area is clear before operating in re-
verse.
• Do not operate on steep slopes.
• Do notstop, startor changedirections
suddenly on slopes.
• Use extreme care and reduce ground
speed on slopes and rough terrain.
• Watch for hidden hazards on the ter-
rain during operation.
• Stop tractor and implement immedi-
ately upon striking an obstruction. Turn
off engine, remove key, inspect and repair
any damage before resuming operation.
• Before dismounting tractor or per-
forming any service or maintenance, dis-
engage power to implement, lower the
3-point hitch and all raised components to
the ground, operate valve levers to release
any hydraulic pressure, stop engine, set
parking brake, remove key, and unfasten
seat belt.
• Lower mower to ground or block se-
curely, turn tractor engine off, remove key,
setparking brake andremove beltfromtrac-
tor PTO sheave before performing anyser-
vice or maintenance.
• Before working underneath, raise mow-
er to highest position and block securely.
Blocking up preventsmower dropping from
hydraulic leak down, hydraulic system fail-
ures, or mechanical component failures.
MAINTENANCE SAFETY
• Before dismounting tractor or per-
forming any service or maintenance, dis-
engage power to implement, lower the
3-point hitch and all raised components to
the ground, operate valve levers to release
any hydraulic pressure, stop engine, set
parking brake, remove key, and unfasten
seat belt.
• Lower mower to ground or block se-
curely, turn tractor engine off, remove key,
setparking brakeandremovebeltfrom trac-
tor PTO sheave before performing anyser-
vice or maintenance.
• Before working underneath, raise mow-
er to highest position and block securely.
Blocking up preventsmower dropping from
hydraulic leak down, hydraulic system fail-
ures, or mechanical component failures.
• Do not modify or alter or permit any-
one else to modify or alter the equipment
or any of its components in anyway.
• Alwayswear relativelytight 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.
• Never go underneath equipment low-
ered to the ground or ra4sed,unless it is
properly blocked and secured. Neverplace
any part of the body underneath equipment
or between moveable parts even when the
engine has been tumed 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 Manual instruc-
tions for working underneath and blocking
requirements, or have work done by a quali-
fied dealer.
4 PN81533(Rev.2/20/98)
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SAFETY RULES
~1~ ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
• Ensure implement is properly attached,
adjusted and in good operating condition.
• Keep all persons away from operator
control area while performing adjust-
ments, service or maintenance.
• Make certain all movement of imple-
ment components has stopped before
approaching for service.
• Frequentlycheck blades. Theyshould
be sharp, free of nicks and cracks and
securelyfastened.
• Do not handlebladeswith bare hands.
Careless or improper handling may result
in serious injury.
• Your dealer can supply genuine re-
placement blades. Substitute blades may
not meet original equipment specifica-
tions and may be dangerous.
• Tighten all bolts, nuts and screws to
torque chart specifications. Check that all
cotterpins areinstalled securelyto ensure
equipment is in a safe condition before
operating.
• Ensure all safety decals are installed.
Replace if damaged. (See Safety Decals
section for location.)
• Ensureshields andguards areproper-
ly installed and in good condition. Re-
place if damaged.
• Use care when installing or removing
belt from spring-loaded idler. Springs
store energy when extended and, if
released suddenly, can cause personal
injury.
STORAGE
• Keep children and bystanders away
from storage area.
NOTES
PN31533(Revo2/20/98) 5
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SAFETY DECALS
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Replace Immediately If Damaged!
WARNING
TO AVOID SERIOUS INJURY OR DEATH,
• READOPERATOR'SMANUALAND FOLLOW ALL
SAFETY PRECAUTIONS.
(CONTACT DEALERFOR MANUALS.)
• KEEP SHIELDSAND GUARDSIN PLACE. KEEP
CLEAR OF DRIVESAND BELTS.
• LOWER IMPLEMENT,STOPENGINEAND
REMOVE KEY BEFORE DISMOUNTING.
• BLOCK UP IMPLEMENTAND REMOVEKEY
BEFOREWORKING UNDERNEATH,
• DO NOT OPERATEMOWER IN VICINITYOF
OTHER PERSONS; NO RIDERS.
• KNOWHOWTO STOPTRACTORAND
EQUIPMENTQUICKLYIN AN EMERGENCY.
• CLEARMOWINGAREA OF DEBRIS.
• ALLOWNO CHILDRENOR UNQUALIFIED
PERSONSTO RUN EQUIPMENT.
• BE CAREFULON UNEVENTERRAIN.DECREASE
4 - Serial Number Plate
(Located on Rear Belt Shield)
KEEP AWAY!
SHIELD MISSING FROM THIS AREA.
TO AVOID SERIOUS INJURY,
• DO NOTOPERATEWITHOUTTHISAND ALL OTHER
SHIELDSIN PLACEAND INGOODCONDITION. 31sle
5 - PN-31516
SPEED WHENTURNING. 5 ~/~~
• DO NOTOPERATEINTRANSPORT POSITION. !
OC2001
3 - PN-62098 . 2 - PN-62211
KEEP AWAY! J
THROWN OBJECTS OR BLADE CONTACT
CAN CAUSE SERIOUS INJURY OR DEATH.
KEEP DISCHARGE CHUTE AND
SHIELDS IN PLACE. =~
A WARNING
540 RPM SPEED
RANGE ONLY
HIGHER PTO SPEEDS CAN CAUSE
PERSONAL INJURYAND EQUIPMENT
FAILURE e22~1
=l
6 PN 31533 (Rev. 2/20/98)
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BOLT TORQUE CHART
After every ten (10) hours of operation, check all hardware and tighten where required.
SAE Series Torque Chart
DO NOT usethese values ifa different torque value ortightening procedure is listed for a specific application. Torque values listed
are for general use only.
Fasteners should be replaced with the same grade.
Makesure fastenerthreads are clean and you properlystartthread engagement.This will preventthem from failing when tightening.
Bolt Head
Identification Grade 2 Grade 5 Grade 8
(No Dashes) ~ (3 Radial Dashes) ~ (6 Radial Dashes)
Bolt 1
Diameter [ Wrench
"A" I Size
1/4" 7/16"
5/16" 1/2"
3/8" 9/16"
7/16" 5/8"
1/2" 3/4"
9/16" 13/16"
5/8" 15/16"
3/4" 1-1/8"
7/8" 1-5/16"
1" 1-1/2"
1-1/8"
1-1/4" 1-7/8"
1-3/8" 2-1/16"
1-1/2" 2-1/4"
MARKING ON HEAD
SAE 2 SAE 5 SAE 8
Lbs.-Ft. (N-m)
(8)
Lbs.-Ft.
(31)
(N-m)
(15) Lbs.-Ft.
(52)
6 11 14
13 (18) 21 (28) 25 (34)
23 38 55 (75)
(N-m)
(19)
1-11/16" (610) (1200)
600 (815) 1255 (1700)
675 (915) 1620 (2200)
2200
(11o)
920
37 (50) 55 (75) 80
57 (77) 85 (115) 120 (165)
82 (111) 125 (170) 180 (245)
111 (150) 175 (240) 230 (310)
200 (270) 300 (410) 440 (600)
280 (380) 450 (610) 720 (975)
350 (475) 680 (925) 1035 (1400)
450 885
(2900)
(1250)
Bolt ~~-~---
Diameter
Metric Series Torque Chart
Use only metric tools on metric hardware. Other tools may not fit properly. They may slip and cause injury.
DO NOT use these values if a different torque value or tightening procedure is listed for a specific application.
Torque values listed are for general use only.
Fasteners should be replaced with the same grade.
Makesure fastener threads are clean and you properlystart thread engagement.This will preventthem from failing when tightening.
BoY[
Diameter
"A"
5 mm
6mm
8 mm
10 mm
12 mm
14 mm
16 mm
20 mm
24 mm
Wrench
Size
8 mm
10 mm
13 mm
16 mm
18 mm
21 mm
24 mm
30 mm
36 mm
46 mm
MARKING ON HEAD
8.8 10.9
N-m
N-m (Lbs.-Ft.)
6 (4.5)
10 (7.5)
25 (18)
50 (37)
85 (63)
110 (80)
215 (159)
435 (321)
750 (553)
1495 (1103)
9
(Lbs.-Ft.)
(6.5)
15 (11)
35 (26)
75 (55)
13o (97)
150 (110)
315 (232)
620 (457)
1070 (789)
30 mm i 2130 (1571)
Metric
Bolt Head
Identification
~ic
Gl'ade 10.9
PN 31533 (Rev. 2/20/98) 7
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BOLT SIZE CHART
IN 1 2 3 4 5 6 7
' ' I I ' i ' ' I ' J ' I J ' ' I ' J I ' ' '
i I , i , 1 I I , I f i I i I , I i , I , I I I i I i I i I ,
MM 25 50 75 100 125 150 175
Metric Bolt Thread Sizes ~
8MM 10MM 12MM 14MM
[
16MM 18MM
NOTES
8 PN 31533 (Rev. 2/20/98)
www.ntractorclub.com

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 a single careless act of an operator.
In addition to the design and configuration of
equipment, hazard control and accident preven-
tion are dependent upon the awareness, con:
cern, prudence 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 an operator.
The designed and tested safety of this machine
depends on it being operated within the limitations as
explained in the manual. Befamiliar with and follow all
safety rules in the manual, on the mower and on the
tractor.
This mower is designed for lawn or 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 low suctions
blades are available for use in sandy conditions.
The safe operation of this machine is the responsibil-
ity of the operator. The operator should be familiar
with the mower, tractor and all safety practices before
starting operation. Read the safety rules and decals
on pages 3 through 6.
The warranty for this mower appears on the inside
back cover of this manual. Record the model and
serial number of your mower in the spaces provided
on the inside front cover. Provide this information to
your dealer to obtain correct repair parts.
Take all possible precautions when leaving tractor
unattended: disengage PTO, lower mower, shift into
neutral, set parking brake, stop engine and remove
key from ignition.
WARNING
• Do not allow children or untrained
persons to operate equipment.
• Do not operate mower unless dis-
charge chute is installed and in good
condition. Replace if damaged.
WARNING
• Keep bystanders away from equip-
ment while it is in operation.
• Never direct discharge toward people,
animals or property.
• Keep hands, feet, hair and clothing
away from equipment while engine is
running. Stay clear of all moving parts.
• No riders are allowed on equipment.
• Operate tractor PTO at RPM speed
stated in "Specifications" section.
CUTTING HEIGHT ADJUSTMENT
Mower cutting height is raised, lowered, and main-
tained by adjusting caster wheels, push bar and
channel arm settings.
It is important to run mower level. Refer to chart in
Figure 1 to select your desired cutting height and set
both front casters. Refer to attitude adjustment to
determine proper settings for push bar and channel
arms.
jA
B
/
APPROXIMATE POSITION
CUTTING HEIGHT
1-1/2" 1
2-1/8" 2
2-3/4" 3
3-3/8" 4
4" 5
Figure 1. Cutting Height Adjustment
PN 31533 (Rev.2/20/98) 9
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MOWER ATTITUDE (Figure2)
Pos~on front of mower level with or sligh~y below rear
to provide closer curling. Mowing with 1hefront end high
will produce ragged cuts with a scalloped look, excessive
shredding, and will require exb'a power.
T
A
1
Figure 2. Mower Attitude
ATTITUDE ADJUSTMENT
Place tractor and mower on a level surface to check
and adjust mower attitude.
For best mowing results, dimension "A" should not be
more than 1/2" higher and never lower than dimen-
sion "B".
Dimension "B" is set by adjusting caster (refer to
Figure 1).
Dimension "A" is set by raising or lowering channel
arms in push bar.
IMPORTANT
• Any adjustment to either dimension
"A" or "B" will require checking the other
adjustment.
Set desired cutting height with casters and then adjust
for dimension "A".
Check attitude by placing a straight edge along
outside edge of mower as shown in Figure2.
Measure from bottom of straight edge to ground. The
measurement at dimension "B" should be level with or
approximately 1/2" lower than the rear. The measure-
ment at dimension "A" should never be lower than the
one at dimension "B".
Check that the mower is level side to side using these
measurements. If it is not, check to be sure casters
are set in same hole and that channel arms and push
bars are set the same on each side.
When changes are made to cutting height or attitude,
be sure to check belt alignment. Refer to Belt
Alignment on page 26.
IMPORTANT
• Improper belt alignment can cause
premature belt failure.
• The measurement at dimension "B" is
not the cutting height. It should only be
used to determine ifthe mower is in proper
attitude adjustment. Cutting height is de-
termined by the setting of the caster
wheels. Refer to Figure 1.
PRE-OPERATION CHECK LIST
(OWNER'S RESPONSIBILITY)
Review and follow all safety rules and safety
decal instructions on pages 3 through 6.
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 dam-
aged.
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.
If the clutch or brake pedal mechanisms can
contact mower components, you may not be able
to stop the tractor safely; Do not operate until
properly adjusted.
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".
Set tractor PTO at correct rpm for your equip-
ment.
Make suretractor ROPS and seat belt are in good
condition. Keep seat belt securely fastened
during operation.
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 & STOPPING MOWER
WARNING
• Operate tractor PTO at RPM speed
stated in "Specifications" section.
CAUTION
• Stoptractor and implement immediate-
ly upon striking an obstruction. Turn off
engine, remove key,inspectand repair any
damage before resuming operation.
Power for operating the mower is supplied by tractor
power take off (PTO). Refer to your tractor manual
PTO operating instructions.
10 PN 31533 (Rev.2/20/98)
www.ntractorclub.com

Should mower become plugged, causing belt to slip
over two seconds, raise mower just enough to clear
plug and continue running for at least two minutes,
allowing pulleys to cool. Stopping the mower with belt
in contract with a very hot pulley will bake and ruin
belt. Do not raise mower higher than necessary, to
reduce the risk of thrown objects:
CommencingMowing
When engaging PTO, the engine rpm should always
be low. Once engaged and ready to start mowing,
increase PTO speed to 540 rpm and maintain
throughout cutting operation.
During operation mower vibration tends to loosen
hardware. All hardware should be checked regularly to
maintain proper torque. It is good practice to check the
mower each day before operation to ensure all
hardware is tight.
IMPORTANT
• Always raise mower off casters when
backing and turning at the same time to
prevent caster from locking up on front
tractor tires.
MOWINGTECHNIQUES
MowingSpeed
The condition ofthe terrain to be cutwill determine the
smoothness of final results. For best results, mower
blades should be kept sharp at all times and the
mower as level as possible. When mower blades
shown excessive wear, they should be replaced.
Proper ground speed for mowing will depend on the
height, type and density of grass to be cut. Normally,
ground speed will range from 2 to 5 mph. Tall, dense
grass should be mowed at low speeds, while thin,
medium height grass can be cut at a faster ground
speed.
Always operate tractor PTO at 540 rpm maximum
when mowing, This is necessary to maintain certain
seasonal conditions, front tractor tires may roll some
grass down and prevent them from being cut to the
same height as the surrounding area. When this
occurs, reduce the tractor ground speed, operating
tractor PTO at 540 rpm. The slower speed will permit
grass to partially rebound and be cut.
Under some conditions, the grass will not rebound
enough to be cut evenly, resulting in an uneven
appearance. In general, lower mowing heights give a
more even cut with less tendency to leave tire tracks.
MowingTips
• Do not operate mower unless dis-
charge chute is installed and in good
condition. Replace if damaged.
WARNING
• Inspect and clear area of stones,
branches or other hard objects that might
be thrown, causing injury or damage.
• Keep bystanders away from equip-
ment while it is in operation.
• Keep hands, feet, hair and clothing
away from equipment while engine is
running. Stay clear of all moving parts.
Extremely tall grass should be mowed twice. Cut
grass higher on first pass. Cut the second time at
desired height at 90° to the first pass.
Remember, sharp blades produce cleaner cuts and
use less power.
Before mowing, analyze the area to determine the
best mowing procedure. Consider the height, type of
grass and the terrain type (hill, level or rough).
Mow with uncut grass to the right. This will distribute
the clippings over the cut area. Discharging clippings
over uncut grass will cause a build-up and may
prevent uniform cutting.
For a professional touch in large open areas, try the
mowing pattern in Figure 3. Make two orthree passes
counter-clockwise to discharge clippings away from
bordering objects. Then cut the lawn in half by
mowing down the center. Turn clockwise to the right
at end of area over grass previously mowed.
Plan your mowing pattern to travel straight forward
whenever possible.
D Q
. i"
8
10-
11
,~
,.
5____._~
12
. 14
16 15----'~
4~
4
Figure 3. Mowing Pattern
PN 31533 (Rev.2/20/98) 11
www.ntractorclub.com

It is better to mow grass more often 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.
Uneven Terrain
WARNING
[] Use extreme care and reduce ground
speed on slopes and rough terrain.
The addition of reartire weights or liquid ballast in rear
tires will increase tractor stability.
Pass diagonally through sharp dips and avoid sharp
drops to prevent "hanging up" the tractor and mower.
Practice will improve your skills in maneuvering rough
terrain.
Avoid sudden starts and stops when traveling up or
down hill. Always mow down steep slopes, never up
or across the face.
Slow down on sharp turns and slopes to prevent
tipping or loss of control.
NOTES
12, PN 31533 (Rev.2/20/98)
www.ntractorclub.com

OWNER SERVICE
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 a single careless act of an operator.
In addition to the design and configuration of
equipment, hazard control and accident preven-
tion are dependent upon the awareness, con-
cern, prudence 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 an operator.
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.
CAUTION
• if you do not understand any part of
this manual and need assistance, see your
dealer.
• Always wear relatively tight and belted
clothing to avoid entanglement in moving
pads. Wear sturdy, rough-soled work
shoes and protective equipment for eyes,
hair, hands, hearing and head.
~1= WARNING
• Never go underneath equipment lowered
to the ground or raised, unless it is proparly
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 leakdown,
hydraulic system failures, mechanical fail-
ures or movement of control levers can
cause equipment to drop or rotate unexpect-
edly and causesevere injury ordeath. Follow
Operator's Manual instructions for working
underneath and blocking requirements, or
have work done by a qualified dealer.
• Before dismounting tractor or perform-
ing any service or maintenance, disengage
powerto implement, lowerthe 3-point hitch
and all raised components to the ground,
operate valve levers to release any hydrau-
licpressure, stop engine, set parking brake,
remove key, and unfasten seat belt.
WARNING
• Keep all persons away from operator
control area while performing adjust-
ments, service or maintenance.
BLOCKING METHOD (Figure4)
WARNING
• Lower mowerto ground or blocksecure-
ly, turn tractor engine off, remove key, set
parking brake and remove belt from tractor
PTO sheave before performing any service
or maintenance.
• Before working underneath, raise mow-
er to highest position and block securely.
Blocking up prevents mower dropping from
hydraulic leak down, hydraulic system fail-
ures, or mechanical component failures.
Do not work underneath mower unless it is properly
attached to the tractor and blocked securely. When
properly attached, the unit will be anchored to
minimize front-to-rear movement.
Raise mower completely, set tractor brakes, turn
engine off, remove key, block tractor wheel front and
rear, and remove mower drive belt from tractor PTO
sheave.
Install blocks securely under each corner of the
mower, Figure 4.
When blocking, you must consider overall stability of
the unit. Just blocking under the unit will not ensure
your safety. The working surface must be level and
solid to support the loaded weight of the blocks. Test
blocking stability before working under any portion of
the mower.
D02937
Figure 4. Blocking Method
PN 31533 (Revo2/20/98) 13
www.ntractorclub.com

Ref
No
1
2
3
1
3
\
oosor,p.,on Frequency 2 J
B,a e sp,n ,es .0.rs -
Caster pivot 10 hrs. ~' ,, - -"
Caster wheel 10 hrs.
Figure 5. Lubrication
LUBRICATION
(Figure 5)
~ WARNING
• Lower mower to ground or block secure-
ly, turn tractor engine off, remove key, set
parking brake and remove belt from tractor
PTO sheave before performing any service
or maintenance.
Be familiar with all safety practices on pages 3
through 6.
Do not let excess grease collect on or around parts,
particularly when operating in sandy areas. The
accompanying illustration gives the lubrication in
mower operating hours, based on normal operating
conditions. Severe or unusual conditions may require
more frequent lubrication.
Use a SAE multi-purpose type grease for all locations
shown. Be sure to clean fitting thoroughly before
using grease gun.
IMPORTANT
• Do not over grease blade spindles.
Excess grease could be transferred to the
belt and cause slippage and premature
failure.
OPERATION
Should you need to operate equipment while servicing,
refer to Operation section for instructions, page 9.
BELTINSTALLATION
See Belt Installation in the Assembly section, page
24.
BLADE SERVICING
~i, CAUTION
• Alwayswear relativelytight 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.
~ WARNING
• Ensure shields and guards are proper-
ly installed and in good condition. Replace
if damaged.
• Lower mower to ground or block secure-
ly, turn tractor engine off, remove key, set
parking brake and remove belt from tractor
PTO sheave before performing any service
or maintenance.
• Before working underneath, raise mow-
er to highest position and block securely.
Blocking up prevents mower dropping from
hydraulic leak down, hydraulic system fail-
ures, or mechanical component failures.
• Do not handle blades with bare hands.
Careless or improper handling may result
in serious injury.
14 PN 31533 (Rev.2/20/98)
www.ntractorclub.com

CAUTION
• Your dealer can supply genuine re-
placement blades. Substitute blades may
not meet original equipment specifica-
tions and may be dangerous.
Inspect blades before each useto determine thatthey
are mounted tightly and are in good condition.
Replace any blade that is bent, excessively nicked,
worn or has any other damage. Small nicks can be
ground out when sharpening.
Blades must be removed before sharpening.
Blade Removal
(Figure 6)
Install spindle lock wrench (1) through belt shield (7)
and into holes in spindle pulley as shown. Remove
bolt (6) which had LEFT HAND THREADS. Remove
cup washers (5), washer (4) and blade (3).
Shoulder washer (2) will not normally come off
machine unless intentionally removed.
3 G ....
1. Spindle lock wrench
2. Shoulder washer
3. Blade
4. Washer
5. Cup washers
6. Bolt, special locking (left hand threads)
7. Belt shield
Figure 6. Blade Assembly
Blade Installation (Figure 6)
CAUTION
• Your 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) through belt shield (7)
and into holes in spindle pulley as shown.
Install shoulder washers (2) (if removed) small end
up. Make sure blade cutting edge is positioned to lead
in counter-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 ifthey have burned or have lost
their clamping force. Replace as necessary.
Installtwo cup washers (5) on bolt (6). Installwasher (4)
and blade (3) on bolt, remembering bolt has LEFT
HAND THREADS, install boltand blade assembly into
spindle. Torqueboltto 170 Ibs.-ft. Remove spindle lock
wrench from pulleyand shield and store it.
Blade Sharpening (Figure 7)
IMPORTANT
• When sharpening blades be sure to
balance them. Unbalanced blades will
cause excessive vibration which can dam-
age blade spindle bearings. Vibration may
also cause structural cracks in mower
housing.
Blades must be removed before sharpening.
Follow original sharpening pattern as shown. Do not
sharpen blade to a razor edge, but leave a 1/32 to
1/16" blunt edge. Do not sharpen back side of blade.
MAINTAIN CORNER
/ ~_. F~LOW ORIGINAL PATFERN
DB1398
......~-------~ 1/32"
Figure 7. Blade Sharpening
PN31533(Rev.2/20/98) 15
www.ntractorclub.com

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 oryour mechanics are not properly
trained in this type of repair, you may be time and
money ahead to replace complete assemblies.
CAUTION
• 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.
WARNING
• Ensure shields and guards are proper-
ly installed and in good condition. Replace
if damaged.
• Lower mowerto ground orblocksecure-
ly, turn tractor engine off, remove key, set
parking brake and remove belt from tractor
PTO sheave before performing any service
or maintenance.
OPERATION
Should you need to operate equipment while servicing,
refer to Operation section for instructions, page 9.
BLADE SPINDLE
Inspection
Spindles are equipped with two tapered roller bearings.
Adjustment is set by pressing a sleeve on the shaft unlJl
all end play is removed. Adjustment is maintained with a
roll pin driven through the sleeve and shah
Periodically inspect blade spindle by grasping pulley,
moving from side to side and up and down. Also
rotate spindle. If end play or wobble is detected or if it
feels rough when rotated (indicating bad bearings),
repair or replace.
Removal from Mower
IMPORTANT
• Although all three spindles are similar in
appearance, they are not identical and can-
not be interchanged. The left and center
spindles are identical and can be inter-
changed. The dght spindle may not be
interchanged with either of the other
spindles.
Remove blade from spindle. Refer to Blade Removal,
page 15.
Remove belt shield and remove belt.
Disassemble split taper bushing (located on top of
pulley) by removing the two bolts and inserting them
into threaded holes. "13ghten alternately to remove
split taper bushing.
Remove key pulley.
Remove four spindle attaching bolts and remove spindle.
Spindle Repair (Figure8)
IMPORTANT
• Be sure to determine which spindle you
are repairing and select correct repair parts.
,
2- -1
1. Blade spindle
assembly 5. Bearing cone
2. Spindle housing 6. Bearing cup
and cups 7. Grease fitting
3. Seal 8. Spindle shaft
4. Sleeve 9. Roll pin
Figure 8. Spindle Repair
Permatex 3D Aviation Form-A-GaskeP, or equiva-
lent, is recommended as a sealant.
For reference, the short cup chamber is on top.
Cups and cones are a press fit to minimize wear.
Permatex Aviation3DForm-A-Gasketisaregisteredtrademark of
the PermatexCorporation.
16 PN31533 (Rev.2/20/98)
www.ntractorclub.com

Disassembly
Drive roll pin out of sleeve and shaft.
Place spindle assembly in a press and press shaft
down through housing.
Remove seals from housing.
Remove bearing cups from housing by placing a
punch in slots provided and drive out. Alternate punch
position from side to side. Take care to prevent
housing damage.
Assembly
Bearing cones and cups are designed to mate. It is
important to position them so bearing cone taper
mates with cup taper.
Lubricate new cups with a light oil. Place them in
spindle housing with tapers toward the outside.
Seat cups securely with a press or place a large soft
drift on the flat lip of cup and drive them into housing
until seated against machined shoulder of housing.
Polish areas of shaft and sleeve where seals will seat
with emery cloth.
Place bottom bearing cone on spindle shaft so it will
mate with cup, and press on until it seats on bottom
shoulder of shaft.
Insert shaft and bearing through bottom of housing
and seat against cup.
Fill housing cavity with a medium grade grease.
Install top bearing on shaft to mate with top cone and
press on shaft until there is room for sleeve.
Apply a thin coat of Permatex to shaft area where
sleeve will seat. Install sleeve on shaft and press
sleeve and bearing down shaft until all end play is
removed (similar to adjusting front wheel bearings on
an automobile). Check by spinning spindle. It should
turn freely. If it istoo tight, hold spindle housing and hit
spindle shaft with a lead hammer. Press again until
the proper adjustment is obtained.
Be careful not to over-tighten bearings. Proper
bearing adjustment is essential to good bearing life.
IMPORTANT
• Improper positioning of seals can
cause seal and spindle damage.
Proper seal installation is important. An improperly
installed seal will leak and could cause bearing
failure.
Pull the rubber portion of seal back and locate spring.
Lightly coat area of housing where seals seat with
Permatex.
Install bottom seal with spring up toward center of
housing.
Place seal squarely on housing and select pipe of
tubing with an O.D. that will set on outside edge of
seal. A tubing with an O.D. that is too small will bow
seal cage.
Carefully guide seal lip over shaft and carefully press
seal into housing. Be careful to prevent distortion to
metal cage. Seal should seat firmly and squarely
against machined shoulder in housing.
Make sure seal lip did not roll under. Distortion to seal
case or damage to seal lip will cause seal to leak.
Damaged seals must be replaced.
Carefully press top seal into housing with spring up
and away from center of housing. Top seal should be
flush with to 1/16" above housing.
Drill a 3/16" hole 9/32" down from top of sleeve and
drive roll pin through sleeve and shaft to hold bearing
adjustment.
Lubricate spindle with a medium grade grease. Turn
spindle bottom up and vent bottom seal with a dull
instrument such as a tongue depressor or letter
opener.
Apply grease until it comes out where you are venting
seal. Use care to prevent cutting or nicking seal.
Rotate spindle housing on shaft, checking for free
movement.
Spindle Installation
IMPORTANT
• Be sure you are installing correct
spindle. Right spindles cannot be inter-
changed with left and center spindles.
Insert spindle up through bottom of mower frame,
Position grease fitting for proper lubrication access
and install the four mounting bolts.
PULLEY INSTALLATION
Install pulley onto spindle shaft. Install split taper
bushing and key. Alternately tighten bolts to 12 Ibs.-ft.
Check that pulley is located on shaft to the dimen-
sions shown in Figure 9. Dimensions are from top of
mower frame to pulley center line.
/~SPLIT TAPER BUSHING
':=======~-~--~--~: ~ ,-
2"- 2.,
, , 1-3/a
LEFT CENTER RIGHT
DB2008
Figure 9. Pulley Installation
PN 31533(Rev.2/20/98) 17
www.ntractorclub.com

TROUBLE SHOOTING
MOWING CONDITIONS
Problem
Grass cut higher in center of
swath than at edge
Grass cut lower in center of
swath than at edge
Grass cut higher on one
side of swath than the other
Streaking conditions in
swath
Material discharges from
mower unevenly; bunches
of material along swath
Erratic mower operation;
mower slows down without
tractor engine slowing
Possible Cause
Height of mower higher at
rear than at front
Loose blade
Height of mower lower at
rear than at front
Loose blade
Deck not running level
Conditions too wet for
mowing
Blades unable to cut that
part of grass pressed down
by path of tractor tires
Dull blades
Loose blade
Material too high and too
much material
Grass wet
Rear of mower too low,
trapping material under
mower
Clippings packed to
underside of mower
Belt slippage
Solution
Check cutting height adjustment.
Refer to chart on page 7.
Check clamping cup washers.
Replace if flat or not holding.
Adjust mower height and attitude so
that mower rear and front are within
1/2" of same height.
Check clamping cup washers.
Replace if flat or not holding.
Check that both front caster arms are
in same hole. Washers on front caster
yoke shafts can be repositioned to
help level deck.
Allow grass to dry before mowing.
Slow ground speed of tractor but keep
PTO running at 540 rpm. Cutting lower
will help. Under some conditions, it is
impossible to pick up and cut grass
pressed down by tires
Sharpen or replace blades.
Check clamping cup washers.
Replace if flat or not holding.
Reduce ground speed but operate
tractor PTO at 540 rpm maximum, or
make two passes over material. Raise
mower for first pass. Lower to desired
height for 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.
Allow grass to dry before mowing.
Slow ground speed of tractor but keep
PTO running at 540 rpm. Cutting lower
will help.
Adjust mower height. Refer to chart on
page 7.
Remove clippings and clean underside
of mower.
See Belt Trouble Shooting.
18 PN 31533 (Rev.2/20/98)
www.ntractorclub.com