OPERATOR’S
MANUAL
Turf Tiger
Diesel Powered
Model:
STT-28CAT
STT61V-25KBD
C ongra tula tions on owning a Sc a g mower! This ma nua l c onta ins the opera ting
instruc tions a nd sa fety informa tion for your Sc a g mower. Rea ding this ma nua l
c a n provide you with a ssista nc e in ma intena nc e a nd a djustment proc edures to
keep your mower performing to maximum efficiency. The specific models that
this book c overs a re listed on the inside c over. Before opera ting your ma c hine,
plea se rea d a ll the informa tion enc losed.
© 2008
PART NO. 03249
PRINTED 7/2008
PRINTED IN USA
Sc a g Power Equipment
Division of Meta lc ra ft of Ma yville, Inc .
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Table of Contents
Table of Contents
SECTION 1 - GENERAL INFORMATION...................................................................................1
1.2 DIRECTION REFERENCE...........................................................................................................................1
SECTION 2 - SAFETY INFORMATION......................................................................................3
2.2 SIGNAL WORDS..........................................................................................................................................3
2.5 ROLL-OvER PROTECTION SYSTEM.........................................................................................................6
2.7 USING A SPARK ARRESTOR.....................................................................................................................8
2.8 SAFETY AND INSTRUCTIONAL DECALS.................................................................................................9
3.6 WEIGHTS AND DIMENSIONS...................................................................................................................11
SECTION 4 - OPERATING INSTRUCTIONS ...........................................................................12
4.2 SAFETY INTERLOCK SYSTEM................................................................................................................13
4.6 ENGAGING THE DECK DRIvE (CUTTER BLADES)................................................................................15
4.8 PARKING THE MOWER.............................................................................................................................16
4.9 AFTER OPERATION..................................................................................................................................16
4.11 MOvING MOWER WITH ENGINE STOPPED..........................................................................................17
4.12 RECOMMENDATIONS FOR MOWING....................................................................................................17
I
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Table of Contents
6.1 PARKING BRAKE ADJUSTMENT ............................................................................................................23
6.3 THROTTLE CONTROL AND CHOKE ADJUSTMENTS............................................................................25
7.5 ENGINE FUEL SYSTEM............................................................................................................................34
SECTION 8 - ILLUSTRATED PARTS LIST ..............................................................................40
61v & 72v CUTTER DECK..............................................................................................................................42
DECK DRIvE COMPONENTS.........................................................................................................................50
FUEL AND HYDRAULIC SYSTEM - KUBOTA DIESEL..................................................................................62
BDP-16A HYDRAULIC PUMP ASSEMBLY WITH COOLING FAN.................................................................64
ELECTRICAL SCHEMATIC - CAT DIESEL.....................................................................................................72
ELECTRICAL SCHEMATIC - KUBOTA DIESEL.............................................................................................73
LIMITED WARRANTY - COMMERCIAL EqUIPMENT...................................................... Following Section 8
II
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Section 1
GENERAL INFORMATION
USE ONLY SCAG APPROvED ATTACHMENTS AND
ACCESSORIES.
1.1 INTRODUCTION
Your mower was built to the highest standards in the
industry. However, the prolonged life and maximum
efficiency of your mower depends on you following the
operating, maintenance and adjustment instructions in
this manual.
Attachments and accessories manufactured by companies
other than Scag Power Equipment are not approved for use
on this machine. See Section 8-1.
WARNING
If additional information or service is needed, contact your
Scag Power Equipment Dealer.
For pictorial clarity, some illustrations and figures
in this manual may show shields, guards or plates
open or removed.Under no circumstances should
your mower be operated without these devices
in place.
We encourage you to contact your dealer for repairs. All
Scag dealers are informed of the latest methods to service
this equipment and provide prompt and efficient service in
the field or at their service shop. They carry a full line of
Scag service parts.
All information is based upon product information available
at the time of approval for printing. Scag Power Equipment
reserves the right to make changes at any time without
notice and without incurring any obligation.
THE REPLACEMENT OF ANY PART ONTHIS PRODUCT
BYOTHERTHANTHEMANUFACTURER'SAUTHORIzED
REPLACEMENT PART MAY ADvERSELY AFFECTTHE
PERFORMANCE, DURABILITY OR SAFETY OF THIS
PRODUCT.
1.2 DIRECTION REFERENCE
USEOFOTHERTHANORIGINALSCAGREPLACEMENT
PARTS WILL vOID THE WARRANTY.
The “Right”and “Left”, “Front”and “Rear”of the machine are
referenced from the operator’s right and left when seated
in the normal operating position and facing the forward
travel direction.
When ordering parts, always give the model and serial
number of your mower.The serial number plate is located
where shown in Figure 1-1.
1.3 SERvICING THE ENGINE AND DRIvE
TRAIN COMPONENTS
SERIAL NUMBER
PLATE LOCATION
5,832,708
5,865,018
4,991,382
4,998,948
5,118,617
5,826,416
The detail servicing and repair of the engine, hydraulic
pumps and gearboxes are not covered in this manual;
only routine maintenance and general service instructions
are provided. For service of these components during
the limited warranty period, it is important to contact your
Scag dealer or find a local authorized servicing agent of
the component manufacturer.Any unauthorized work done
on these components during the warranty period may void
your warranty.
OF THE FOLLOWING PATENTS:
MANUFA4,
48 ,006ED UNDER ONE OR MORE
4,885,903
4,920,733
4,967,543
R
C
TUR
7
PATENTS PENDING
MODEL
SERIA
Mayville, Wisconsin 53050
L
tenttaslcIsrasfute
Division oPfaMe
o a
df MandyvPilelen,dIinncg.
Figure 1-1. Mower Serial Number Plate Location
1
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Section 1
1.4 SYMBOLS
SYMBOL
DESCRIPTION
SYMBOL
DESCRIPTION
Choke
Transmission
Parking Brake
Spinning Blade
Spring Tension on Idler
Oil
48071S
On/Start
Off/Stop
Falling Hazard
Fast
Thrown Object Hazard
Slow
Continuously Variable - Linear
Pinch Point
Cutting Element - Basic Symbol
Cutting Element - Engage
Cutting Element - Disengage
CE Mark
481039S
Hour meter/Elapsed Operating Hours
STT MODELS
Seat must be installed under the seat
hold down bracket during installation.
Failure to secure the seat under the hold
down bracket could result in serious
injury or death in a roll over.
Thrown Object Hazard
Keep Bystanders Away
Read Operator's Manual
2
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Section 2
SAFETY INFORMATION
2.1 INTRODUCTION
DANGER
Your mower is only as safe as the operator. Carelessness
or operator error may result in serious bodily injury
or death. Hazard control and accident prevention are
dependent upon the awareness, concern, prudence, and
proper training of the personnel involved in the operation,
transport, maintenance and storage of the equipment.Make
sure every operator is properly trained and thoroughly
familiar with all of the controls before operating the
mower.The owner/user can prevent and is responsible for
accidents or injuries occurring to themselves, other people
or property.
The signal word “DANGER” denotes that an extremely
hazardous situation exists on or near the machine that
could result in high probability of death or irrepairable injury
if proper precautions are not taken.
WARNING
The signal word “WARNING” denotes that a hazard exists
on or near the machine that can result in injury or death if
proper precautions are not taken.
READ THIS OPERATOR’S MANUAL BEFORE
ATTEMPTING TO STARTYOUR MOWER.
A replacement manual is available from your authorized
Scag Service Dealer or by contacting Scag Power
Equipment, Service Department at P.O.Box 152, Mayville,
The manual for this machine can be downloaded by using
the model and serial number or use the contact form to
make your request. Please indicate the complete model
and serial number of your Scag product when requesting
replacement manuals.
CAUTION
The signal word“CAUTION”is a reminder of safety practices
on or near the machine that could result in personal injury
if proper precautions are not taken.
Your safety and the safety of others depends significantly
upon your knowledge and understanding of all correct
operating practices and procedures of this machine.
2.2 SIGNAL WORDS
2.3 BEFORE OPERATION
CONSIDERATIONS
1. NEVER allow children to operate this riding mower.
Do not allow adults to operate this machine without
proper instructions.
This symbol means “Attention! Become Alert! Your
Safety is Involved!" The symbol is used with the following
signal words to attract your attention to safety messages
found on the decals on the machine and throughout this
manual. The message that follows the symbol contains
important information about safety. To avoid injury and
possible death, carefully read the message! Be sure to fully
understand the causes of possible injury or death.
2. Do not mow when children and/or others are
present. Keep children out of the mowing area and
in the watchful care of a responsible adult other than
the operator. Be alert and turn machine off if a child
enters the area.
3. DO NOT allow children to ride or play on the
machine, it is not a toy.
SIGNAL WORD:
4. Clear the area to be mowed of objects that could be
picked up and thrown by the cutter blades.
It is a distinctive word found on the safety decals on the
machine and throughout this manual that alerts the viewer
to the existence and relative degree of the hazard.
5. DO NOT carry passengers.
6. DO NOT operate the machine under the influence of
alcohol or drugs.
3
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Section 2
7. If the operator(s) or mechanic(s) cannot read English
or Spanish, it is the owner's responsibility to explain
this material to them.
12. DO NOT add fuel to a running or hot engine. Allow
the engine to cool for several minutes before adding
fuel. Never fuel indoors or inside enclosed trailers.
8. DO NOT wear loose fitting clothing. Loose clothing,
jewelry or long hair could get tangled in moving
parts. Do not operate the machine wearing shorts;
always wear adequate protective clothing including
long pants. Wearing safety glasses, safety shoes and
a helmet is advisable and is required by some local
ordinances and insurance regulations.
13. Keep flammable objects (cigarettes, matches, etc.),
open flames and sparks away from the fuel tank and
fuel container. Use only approved containers.
14. Equipment must comply with the latest requirements
per SAE J137 and/or ANSI/ASAE S279 when driven
on public roads.
- Note -
If the mower is driven on public roads, it must
comply with state and local ordinances as well as
SAE J137 and/or ANSI / ASAE S279 requirements.
Contact your local authorities for regulations and
equipment requirements.
WARNING
Always wear hearing protection. Operating this
machine over prolonged periods of time can
cause loss of hearing.
15. Do not operate without the side discharge chute
installed and in the down position or with an optional
grass catcher or mulch plate completely installed.
9. Keep the machine and attachments in good
operating condition. Keep all shields and safety
devices in place. If a shield, safety device or decal
is defective or damaged, repair or replace it before
operating the machine.
16. Check the blade mounting bolts at frequent intervals
for proper tightness.
17. Make sure all hydraulic fluid connections are tight
and all hydraulic hoses and lines are in good
condition before starting the machine.
WARNING
2.4 OPERATION CONSIDERATIONS
This machine is equipped with an interlock system
intended to protect the operator and others from
injury. This is accomplished by preventing the
engine from starting unless the deck drive is
disengaged, the parking brake is on, the steering
control levers are in the neutral position and the
operator is in the seat. The system shuts off the
engine if the operator leaves the seat with the deck
drive engaged and/or the steering control levers
are not in the neutral position and the parking
brake is not engaged. Never operate equipment
with the interlock system disconnected or
malfunctioning.
1. Know the function of all controls and how to stop
quickly.
WARNING
DO NOT operate on steep slopes.To check a slope,
attempt to back up it (with the cutter deck down).
If the machine can back up the slope without the
wheels slipping, reduce speed and use extreme
caution. Under no circumstances should the
machine be operated on slopes greater than 15
degrees. ALWAYS FOLLOW OSHA APPROvED
OPERATION.
10. Be sure the interlock switches are functioning
correctly.
2. Reduce speed and exercise extreme caution on
slopes and in sharp turns to prevent tipping or loss
of control. Be especially cautious when changing
directions on slopes.
11. Fuel is flammable; handle it with care. Fill the fuel
tank outdoors. Never fill it indoors. Use a funnel or
spout to prevent spillage. Clean up any spillage
before starting the engine.
3. To prevent tipping or loss of control, start and stop
smoothly, avoid unnecessary turns and travel at
reduced speed.
4
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Section 2
4. When using any attachment, never direct the
discharge of material toward bystanders or allow
anyone near the machine while in operation.
CAUTION
Do not touch the engine or the muffler while the
engine is running or immediately after stopping.
These areas may be hot enough to cause a
burn.
5. Before attempting to start the engine, with the
operator in the seat, disengage power to the cutter
deck, place the steering control levers in the neutral
position and engage the parking brake.
6. If the mower discharge ever plugs, shut off the
engine, remove the ignition key, and wait for all
movement to stop before removing the obstruction.
DANGER
DO NOT run the engine inside a building or
a confined area without proper ventilation.
Exhaust fumes are hazardous and contain
carbon monoxide which can cause brain injury
and death.
WARNING
DO NOT use your hand to dislodge the clogged
discharge chute. Use a stick or other device to
remove clogged material after the engine has
stopped running and the blades have stopped
turning.
16. Keep hands and feet away from cutter blades and
moving parts. Contact can injure.
7. Be alert for holes, rocks, roots and other hidden
hazards in the terrain. Keep away from any drop-
offs. Beware of overhead obstructions (low limbs,
etc.), underground obstacles (sprinklers, pipes, tree
roots, etc.). Cautiously enter a new area. Be alert for
hidden hazards.
17. Transport the mower using a heavy duty trailer
or truck. Insure the trailer or truck has all of the
necessary lighting and markings as required by
laws, codes, and ordinances. Secure a trailer with a
safety chain.
8. Disengage power to cutter deck before backing up.
Do not mow in reverse unless absolutely necessary
and then only after observation of the entire area
behind the mower. If you must mow in reverse,
maintain a constant lookout to the rear of the
machine and mow slowly.
18. Be cautious when loading and unloading onto
trailers or trucks. Use only a full width ramp. Ramp
angle should be no more than 15 degrees. Back up
the ramp and drive down forward.
19. When transporting the mower, make sure the park
brake is engaged, the steering control levers are in
the neutral position, the engine is off with the key
removed, and the wheels have been blocked.
9. DO NOT turn sharply. Use care when backing up.
10. Disengage power to cutter deck before crossing
roads, walks or gravel drives.
20. Tie the mower down securely using straps, chains,
cable, or ropes. Both front and rear straps must be
directed down and outward from machine.
11. Mow only in daylight or good artificial light.
12. NEVER raise the deck with the blades engaged.
21. Use care when approaching blind corners, shrubs,
trees, or other objects that may obscure vision.
13. Take all possible precautions when leaving the
machine unattended, such as disengaging the
mower, lowering the attachments, setting the parking
brake, stopping the engine, and removing the key.
22. NEVER leave the machine running unattended.
14. Disengage power to the attachments when
transporting or when not in use.
15. The machine and attachments should be stopped
and inspected for damage after striking a foreign
object, and damage should be repaired before
restarting and operating the machine.
5
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Section 2
Lower the roll bar only when absolutely necessary.
2.5 ROLL-OvER PROTECTION SYSTEM
1. To lower the roll bar, loosen the tension knob on both
the left hand and right hand bar. See Figure 2-1.
WARNING
2. Remove the hairpin cotter pins and remove the two
(2) lock pins. See Figure 2-2.
Keep the roll bar in the raised and locked position
and the seat belt securely fastened during
operation. Failure to do so could cause serious
injury or loss of life.
3. Lower the roll bar to the down position.
4. To raise the roll bar, lift the bar to the upright
position.
5. Install the two (2) lock pins through the hole, secure
with the two (2) hairpin cotter pins and tighten the
tension knobs. See Figure 2-2. Remove the seat belt
from the retainer brackets.
This mower has been designed for good traction and
stability under normal mowing conditions. However, caution
must be used when traveling on slopes, especially when the
grass is wet. Do not mow on wet grass.Wet grass reduces
traction and steering control.
UPRIGHT AND
LOCKED POSITION
Any or all parts of the Roll-Over Protection System MUST
NOT be removed. Failure to adhere to this guideline could
result in injury or death.
TENSION
KNOBS
WARNING
There is no roll-over protection when the roll bar
is in the down position.
Lower the roll bar only when absolutely
necessary.
Figure 2-1. Foldable Roll-over Protection System
Raise the roll bar as soon as clearance permits.
DO NOT wear the seat belt when the roll bar is in
the down position.
HAIR PIN
TENSION
KNOB
ALWAYS wear seat belt when roll bar is in the up
position.
LOCK PIN
Operate the machine smoothly, no sudden turns,
starts or stops.
Check the area carefully before mowing for proper
overhead clearance (i.e. branches, doorways,
etc.).
Figure 2-2. RoPS Hinge
The potential exposure of the seat belt to severe
environmental conditions make it crucial to inspect the seat
belt system regularly.
DO NOT contact any overhead object with the
roll bar.
6
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Section 2
It is recommended that the seat belt be inspected on a
daily basis for signs of damage. Any seat belt system that
shows cuts, fraying, extreme or unusual wear, significant
discoloration due to UV exposure, dirt or stiffness, abrasion
to the seat belt webbing, or damage to the buckle, latch
plate, hardware or any other obvious problem should be
replaced immediately.
WARNING
Reduce speed when turning, operating on slopes,
slick or wet surfaces. Allow extra distance to
stop.
Stay off of slopes too steep for safe operation.
To check a slope, attempt to back up it (with the
cutter deck down). If the machine can not back
up the slope without the wheels slipping, do not
operate the machine on this slope. Under no
circumstances should the machine be operated
on slopes greater than 15 degrees.
WARNING
Failure to properly inspect and maintain the seat
belt can cause serious injury or loss of life.
1. Check the full length of the seat belt webbing for
cuts, wear, fraying, dirt and stiffness. See Figure 2-3.
DO NOT mow near drop-offs, ditches or
embankments. The machine could suddenly roll
over if a wheel goes over the edge or if the edge
caves in.
2. Check the seat belt webbing in areas exposed to
ultra violet rays from the sun or extreme dust or
dirt. If the original color of the webbing in these
areas is extremely faded and/or is packed with dirt,
the physical strength of this webbing may have
deteriorated. If this condition exists, replace the seat
belt system.
Operate the machine smoothly, no sudden turns,
starts or stops on a slope.
NEvER tow on slopes. The weight of the towed
equipment may cause loss of traction and loss
of control.
3. Check the buckle and latch for proper operation
and determine if the latch plate is excessively worn,
deformed, or if the buckle is damaged or cracked.
See Figure 2-3.
DO NOT permit untrained personnel to operate
the machine.
INSPECT BUCKLE
& LATCH
Be cautious when loading and unloading onto
trailers or trucks.
Use only a full width ramp.
INSPECT WEBBING
Ramp angle should be no more than 15
Degrees.
Figure 2-3. Seat Belt Inspection
Back up the ramp and drive down forward.
7
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Section 2
2.6 MAINTENANCE CONSIDERATIONS &
STORAGE
WARNING
1. Never make adjustments to the machine with the
engine running unless specifically instructed to do
so. If the engine is running, keep hands, feet, and
clothing away from moving parts.
Hydraulic fluid is under high pressure. Keep
body and hands away from pinholes or nozzles
that eject hydraulic fluid under high pressure.
If you need service on your hydraulic system,
please see your authorized Scag dealer. If
hydraulic fluid is injected into the skin, it must be
surgically removed within a few hours by a doctor
or gangrene may result.
2. Disengage drives, lower implement, set parking
brake, stop engine and remove key or disconnect
spark plug wire to prevent accidental starting of the
engine when servicing or adjusting the machine.
Wait for all movement to stop before adjusting,
cleaning or repairing.
3. Disconnect battery or remove spark plug wire before
making any repairs. Disconnect the negative terminal
first and the positive last. Reconnect the positive first
and the negative last.
13. Let the engine cool before storing.
14. DO NOT store the machine near an open flame.
15. Shut off fuel while storing or transporting.
16. DO NOT store fuel near flames or drain indoors.
4. Keep all nuts, bolts and screws tight, to ensure the
machine is in safe working condition. Check blade
mounting bolts frequently to be sure they are tight.
17. Charge batteries in an open, well ventilated area,
away from spark and flames. Unplug charger before
connecting or disconnecting from battery. Wear
protective clothing and use insulated tools.
5. Do not change the engine governor settings or
overspeed the engine. See the engine operator's
manual for information on engine settings.
6. To reduce fire hazard, keep the cutting units, drives,
muffler and engine free of grass, leaves, excessive
grease, oil and dirt.
2.7 USING A SPARK ARRESTOR
The engine in this machine is not equipped with a spark
arrestor muffler. It is in violation of California Public
Resource Code Section 4442 to use or operate this engine
on or near any forest covered, brush covered or grass
covered land unless the exhaust system is equipped with
a spark arrestor meeting any applicable local or state laws.
Other states or federal areas may have similar laws.Check
with your state or local authorities for regulations pertaining
7. Park the machine on level ground and engage the
parking brake.
8. NEVER allow untrained personnel to service the
machine.
9. Use care when checking blades. Use a Blade Buddy,
wrap the blade(s) or wear gloves and USE CAUTION
when servicing blades. Only replace blades. NEVER
straighten or weld blades.
to these requirements.
10. Keep all parts in good working condition. Replace all
worn or damaged decals.
11. Use jack stands to support components when
required.
12. Carefully release pressure from components with
stored energy.
8
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Section 2
2.8 SAFETY AND INSTRUCTIONAL DECALS
483406
483429
483407
483425
FORWARD
R
F
REVERSE
START / DRIVE PROCEDURE
481568
WARNING
INSTALL BELT COVER BEFORE
OPERATING MACHINE
!
WARNING
READ OPERATOR'S MANUAL
483402
AVOID SERIOUS INJURY OR DEATH
!
CAUTION
Avoid injury from burns.
Shut off engine before
removing fuel tank cap.
483395
DIESEL FUEL ONLY
483444
483395
483444
483633
483154
483154
390S0150F
9
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Section 3
SPECIFICATIONS
3.1 ENGINE
General Type ....................................................................................................Heavy Duty Industrial/Commercial Diesel
Brand....................................................................................................................... CAT 28HP Diesel [Spec. #307-9829]
Kubota 25HP Diesel [Spec. #D902-E2B-KAE-2 (1G447-00000)]
Model............................................................................................................................................................... CAT - C1.1
Kubota - D902
Horsepower .................................................................28 HP at 3200 RPM (Model STT61V-28CAT-SS, STT-28CAT-SS)
25 HP at 3600 RPM (Model STT61V-25KBD-SS)
Type.....................................................................................4 Stroke Diesel, 3 Cylinder, Horizontal Shaft, Liquid-Cooled
Displacement............................................................................................................................898 cc Kubota, 1.13L. Cat
Cylinders..........................................................................................................................................................................3
Governor..............................Mechanical Type with Variable Speed Control Set At 3200 RPM - CAT, 3670 RPM -Kubota
Idle Speed ........................................................................................................................................................1200 RPM
Fuel Pump .......................................................................................................Electric Fuel Pump with in-line filter - CAT
Injection Pump, Bosch MD Mini Type with in-line fuel filter - Kubota
Fuel......................................................................................................... Diesel Fuel with a minimum cetane rating of 40
Oil Pump Group............................................................................... Pressure Lube, 5.2 U.S. Quarts with Oil Filter - CAT
Positive Displacement Gerotor™ Oil Pump with Oil Filter - Kubota
Starter............................................................................................................ Electric Starting with Solenoid Shift Starter
Belts:................................................................................................................Kevlar cord. Self-adjusting, Self-tightening
Deck Drive Belt................................................................................................................ Scag Part Number - 481460
Pump Drive Belt .................................................................................................... Scag Part Number - 483735 - CAT
Scag Part Number - 483678 - Kubota
3.2 ELECTRICAL
Battery.....................................................................................................................12 Volt, Maintenance Free (525CCA)
Charging System............................................................................................................................................... Alternator
Charging Output .......................................................................................................................................12 Volt, 40 Amp
System Polarity.......................................................................................................................................Negative Ground
Starter.................................................................. 12 Volt Electric Ring Gear Type, Key and Solenoid Operated Interlock
Switches ..................................................................... Seat, Neutral Control, Mower Engagement (BBC), Parking Brake
Instrument Panel ............................................ Volt Meter, Key Switch, Throttle Lever, BBC Switch, Temperature Gauge,
Fuses, Safety Start Module, Oil Pressure Gauge, Glow Plug Indicator
Fuses.................................................................................................................. Two (1) 20 Amp, (1) 50 Amp Resettable
3.3 POWER HEAD
Drive System ................Hydraulic Drive with Two Variable Displacement Pumps and Two Cast-iron High Torque Motors
Hydrostatic Pumps ....................................................................... Two Hydro-Gear™ 16cc Pumps with Dump Valves for
movement without running the engine and pressure relief valves
Drive Wheel Motors ...........................................Two Hydro-Gear Model 18E, 18 cu. Inch Cast-Iron High-Torque Motors
Steering/Travel Control....................................................................................Twin Lever Fingertip Steering Control with
Individual Control to Each Wheel with Gas Spring Dampers
Parking Brake ...................................................................Lever Actuated Linkage to Brakes on Both Drive Wheel Axles
Wheels:
(2) Front Caster............................................................................................................................. 13 X 6.00 Flat Free
(2) Drive............................................................. 24X12.0X12 Four-Ply Pneumatic Tubeless, Radius Edge, 61" & 72"
Tire Pressure:
Front Caster....................................................................................................................................................Flat Free
Drive.................................................................................................................................................................. 12 PSI
Fuel Tank .......................................10-Gallon Seamless Polyethylene Tank with large opening and Fuel Gauge Fill Cap
Seat ..........................................................................................................................................Padded, Suspension Seat
10
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Section 3
Travel Speed:
Forward .................................................................................................................................................................0-12
Reverse ..........................................................................................................................................................0-6 MPH
-NOTE- The machine will travel at 12mph for transport purposes. For best cutting performance the forward travel
speed should be adjusted depending upon the cutting conditions.
3.4 CUTTER DECK
Type...........................Floating, Adjustable, Anti-scalping, Hybrid Design Combines Out-front and Belly-mount Designs
Construction ..........................10-gauge steel reinforced with 7-gauge (3/16") Support Plate. 7-gauge (3/16") deck skirt.
True Cutting Width:
61V........................................................................................................................................................61" (155.0 cm)
72V........................................................................................................................................................72" (182.9 cm)
Cutting Height Adjustment.......Foot-Operated Lever Adjustment from Operator's Seat, 1.00" to 6.00" in 1/4"increments
Cutter Blades..................................................................................0.197 Thick, Milled Edge, Wear Resistant Marbain™
61V.............................................................................................................................................. Three (3) 21" blades
72V........................................................................................................................................... Three (3) 24.5" blades
Blade Engagement......................................... Electric Blade Engagement Clutch with Control Panel Switch Connected
to the Cutter Deck Gearbox through a Drive Shaft.
Discharge Opening......................................Extra Wide 11.5" Discharge Opening with Spring Loaded Discharge Chute
Discharge Chute...................................................................................................Black, Polypropylene (Plastic), Flexible
Caster Wheels.................................................................................................................................... 13 X 6.00 Flat Free
Spindles...................................... Heavy-duty 1-1/8" Top Dimension Spindle Shaft, Cast Housing, Taper Roller Bearing,
Low Maintenance with Top Access Grease Fitting and Grease Overfill Relief Poppet
Spindle Pulleys............................................................................................ Split Steel with Easily Removed Taper Hubs
Cutter Deck Belts .............................................................B-section with Kevlar Cord. Self-Adjusting, Self-Tightening
61V.................................................................................................................................. Scag Part Number - 481558
72V.................................................................................................................................. Scag Part Number - 481980
Electric Clutch Type.........................................................................................................................Ogura Electric Clutch
Drive Shaft............................................................................................Clamp Yoke Shaft With Two High Speed U-Joints
3.5 HYDRAULIC SYSTEM
Hydraulic Oil Filter ......................................................................................................... 10 Micron Spin-on Element Type
Hydraulic Reservoir .....................................................................................................................Nylon; 3 Quart Capacity
3.6 WEIGHTS AND DIMENSIONS
SMT61v
SMT72v
Length...............................................................................................................................87.5"................................87.5"
Tracking Width ................................................................................................................... 55" ....................................55"
Overall Width w/chute down .............................................................................................73.5"...................................83"
Overall Width w/chute up................................................................................................... 62" ....................................73"
Overall Height w/ROPS up ...............................................................................................67.5"................................67.5"
Overall Height w/ROPS down...........................................................................................56.5"................................56.5"
Operating Weight........................................................................................... 1540# (Kubota), 1700# (Cat) ...........1750#
3.7 PRODUCTIvITY
SMT61v
SMT72v
Cutting Width..................................................................................................................... 61" ....................................72"
Acres Per Day................................................................................................................... 23.7.....................................28
The preceding chart will aid you in determining how many acres your Scag mower will cut per day. The chart is an
estimate based on 8 hours per day cutting time at 6 MPH with an allowance for overlap and turns.
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Section 4
OPERATING INSTRUCTIONS
2. Mower Deck Switch (Figure 4-1). Used to engage
and disengage the mower drive system. Pulling up
on the switch will engage the deck drive. Pushing
down on the switch will disengage the deck drive.
CAUTION
Do not attempt to operate this mower unless you
have read this manual. Learn the location and
purpose of all controls and instruments before
you operate this mower.
3. Glow Plug Indicator (Figure 4-1). Yellow indicator
turns on when the key switch is turned to the
PREHEAT position. Glow plugs must be preheated
for 5 to 10 seconds before starting the engine.
4. Engine Throttle Control (Figure 4-1). Used to
control the engine speed. Pushing the lever forward
increases engine speed. Pulling the lever back
decreases engine speed. Full back position is the
IDLE position. Full forward is the cutting position.
4.1 CONTROLS AND INSTRUMENT
IDENTIFICATION
Before operating the mower, familiarize yourself with all
mower and engine controls.Knowing the location, function
and operation of these controls is important for safe and
efficient operation of the mower.
5. voltmeter (Figure 4-1). Indicates the condition of
the charging system. When the engine is running, in
normal operating conditions, the needle should be in
the 12 to 14 volt range.
1. Ignition Switch (Figure 4-1). The ignition switch
is used to start the engine. The ignition switch for
the STT-28CAT-SS has four positions; PREHEAT,
OFF, ON, and START. The ignition switch for the
STT61V-25KBD-SS has three positions; OFF, ON /
6. Oil Pressure (Figure 4-1). Indicates engine oil
pressure. Reference the engine operator's manual
for further information.
PREHEAT, and START
LEFT STEERING
CONTROL
DECK LIFT
PARKING BRAKE
CONTROL
CUTTING HEIGHT
ADJUSTMENT
WATER TEMPERATURE
MOWER DECK SWITCH
RIGHT STEERING
CONTROL
DECK RELEASE
OIL PRESSURE
SEAT BELT
GLOW PLUG INDICATOR
ENGINE
THROTTLE
CONTROL
IGNITION SWITCH
FUEL GAUGE
FUSES
VOLTMETER
DUMP VALVE
HOURMETER
Figure 4-1. Controls and Instruments
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Section 4
7. Hour meter (Figure 4-1). Indicates the number of
hours the engine has been operated. It operates
whenever the engine is running. Has preset
maintenance reminders for engine and hydraulic
system oil changes. Will start flashing scheduled
maintenance 2 hours before preset time and
continue flashing until 2 hours after. Automatically
resets.
15. Cutting Height Adjustment (Figure 4-1). Used to
set the cutter deck at the desired cutting height.
16. Deck Release Lever (Figure 4-1). Used to lock
the cutter deck in the transport position. Push the
foot pedal forward and lift up on the release lever to
release the cutter deck for normal mowing.
17. Temperature Gauge (Figure 4-1). Indicates the
operating temperature of the engine.
8. Fuse Holders (Figure 4-1). There are one 20-amp
fuse and one 50-amp resettable fuse that protect the
mower’s electrical system. To replace fuse, pull fuse
out of the socket and install a new fuse.
18. Seat Belt (Figure 4-1). Used to secure the operator.
Seat belt must be worn at all times when the ROPS
is in the upright and locked position.
9. Left Steering Control (Figure 4-1). Used to control
the mower's left wheel when traveling forward or
reverse.
4.2 SAFETY INTERLOCK SYSTEM
The mower is equipped with a safety interlock system
that prevents the engine from starting unless the deck
drive is disengaged, the parking brake is engaged, the
steering control levers are in the neutral position and the
operator is in the seat. The interlock system shuts off the
engine if the operator leaves the seat with the steering
control levers not in the neutral position and/or the cutter
blades engaged and the parking brake not engaged.
10. Right Steering Control (Figure 4-1). Used to
control the mower's right wheel when traveling
forward or reverse.
11. Parking Brake Control (Figure 4-1). Used to
engage and disengage the parking brakes. Pull the
lever back to engage the parking brakes. Push the
lever forward to disengage the parking brakes.
12. Fuel Tank Gauge (Figure 4-1). Indicates the
amount of fuel in the fuel tank.
WARNING
Never operate the mower with the interlock
system disconnected or malfunctioning. Do not
disengage or bypass any switch;injury to yourself
and others or property damage could result.
13. Dump valve Control Levers (Figure 4-2). Located
on the hydraulic pumps, used to “free-wheel” the
mower. Rotating the levers clockwise until they stop
allows the unit to move under hydraulic power. The
levers must be in this position and torqued to 10ft/lbs
during operation of the mower. Rotating the levers
counter-clockwise allows the mower to be moved by
hand (free-wheeling).
4.3 INITIAL RUN-IN PROCEDURES (FIRST
DAY OF USE OR APPROxIMATELY 10
HOURS)
DUMP VALVE
CONTROL
1. Check all belts for proper alignment and wear at 2, 4
and 8 hours.
2. Change the engine oil and oil filter after the first 20
hours of operation. (See Section 7.4.)
3. Check hydraulic oil level in reservoir. (See Section
7.3.)
2007 STTDVC
4. Check for loose hardware. Tighten as needed.
5. Check interlock system for proper operation. (See
Section 4.2.)
Figure 4-2. Dump Valve Control
14. Deck Lift Foot Lever (Figure 4-1). Used to raise
6. Check tire pressure. Adjust pressure if
necessary. (See Section 7.10)
and lower the cutter deck.
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Section 4
- IMPoRtANt -
4.4 STARTING THE ENGINE
Start practicing with a slow engine speed and slow
forward travel.
Learn to feather the steering controls to obtain a
smooth operating action.
CAUTION
DO NOT USE STARTING FLUIDS. Use of starting
fluids in the air intake system may be potentially
explosive or cause a“runaway”engine condition
that could result in engine damage and/or
personal injury.
Practice operating the mower until you are
comfortable with the controls before proceeding
to mow.
FORWARD TRAvEL
To travel forward with the mower, disengage the parking
brake and slowly push the steering control levers forward
an equal distance. The further the steering control levers
are pushed forward, the greater the forward speed will be.
To increase the speed, push the steering control levers
further forward and to decrease the speed, pull the steering
control levers back.
1. Be sure the fuel shutoff valve, located behind the
operator's seat, is completely open. (See Section 7.5
Page 35)
2. Secure the ROPS in the upright and locked position.
3. Sit in the operator’s seat, fasten seat belt and place
the steering control levers in the neutral position.
4. Engage the parking brake.
To stop the forward travel, pull the steering control levers
back to the neutral position.
5. Place the PTO switch in the disengaged position.
6. Move the engine throttle control to about half engine
speed.
To steer the mower left while traveling forward, pull the left
steering lever back.The further the lever is pulled back, the
quicker the mower will turn left.
7. Turn the ignition key to the PREHEAT position for the
STT-28CAT-SS or the ON position for the STT61V-
25KBD-SS for approximately 5 to 10 seconds to
allow the glow plugs to preheat before starting the
engine. Then turn the ignition key to the START
position and release the key as soon as the engine
starts. Do not hold the key in the START position for
more than 15 seconds at a time. Allow at least 60
seconds between each cranking attempt to prevent
overheating of the starter motor. Prolonged cranking
can damage the starter motor and shorten battery
life.
To steer the mower right while traveling forward, pull the
right steering control lever back. The further the lever is
pulled back, the quicker the mower will turn right.
- Note -
Smooth operation of the steering levers will
produce smooth mower operation. While learning
the operation of the steering controls, keep the
travel speed low.
8. Allow engine to warm before operating the mower.
- IMPoRtANt -
Do not travel forward over a curb. The mower will
hang up on the curb. Raise the deck and travel
backwards over the curb at a 45 degree angle.(see
Section 4.13 on Page 18 for cutter deck raising
instructions)
4.5 GROUND TRAvEL AND STEERING
- IMPoRtANt -
If you are not familiar with the operation of a
machine with lever steering and/or hydrostatic
transmissions, the steering and ground speed
operations should be learned and practiced in
an open area, away from buildings, fences, or
obstructions. Practice until you are comfortable
with the handling of the machine before attempting
to mow. Learn the operation on flat ground before
operating on slopes.
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Section 4
REvERSE TRAvEL
4.6 ENGAGING THE DECK DRIvE (CUTTER
BLADES)
1. Set the throttle at about 3/4 speed. Do not attempt to
CAUTION
Disengage power to the mower before backing
up. Do not mow in reverse unless absolutely
necessary and then only after observation of the
entire area behind the mower.
engage the deck drive at high speed as this shortens
the electric clutch life — use only moderate engine
speed when engaging the deck drive.
2. Engage the deck drive by pulling out on the yellow
switch, located on the instrument panel, (Figure 4-3)
to the engage position.
CAUTION
Before backing up, observe the rear for persons
and obstructions. Clear the area before backing
up. Possible injury or property damage could
occur.
PULL UP TO ENGAGE
PUSH DOWN TO DISENGAGE
390S013
To travel in reverse, pull both handles back.Keep the travel
speed low while traveling in reverse.
Figure 4-3. Cutter engage Switch
- Note -
- Note -
The mower may not travel straight in reverse.
Slight adjustments may need to be made using
the steering controls.
A squealing noise may be heard when engaging
or disengaging the deck drive. It is caused by the
electric clutch plates meshing as the mower comes
up to speed.
To steer left while traveling in reverse, allow the left steering
control lever to move forward. The further the control is
allowed to move forward, the quicker the mower will turn
left.
3. To disengage the deck drive, push the switch in to
the disengage position.
4. Always operate the engine at full throttle to properly
maintain cutting speed. If the engine starts to lug
down, reduce the forward speed and allow the
engine to operate at maximum RPM.
To steer right while traveling in reverse, allow the right
steering control lever to move forward. The further the
control is allowed to move forward, the quicker the mower
will turn right.
To stop the reverse travel, allow the steering control levers
to return to the neutral position.If the mower is to be parked,
engage the parking brake.
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Section 4
4.7 HILLSIDE OPERATION
4.9 AFTER OPERATION
1. Wash the entire mower after each use. Do not
use high pressure spray or direct the spray onto
electrical components.
WARNING
- IMPoRtANt -
DO NOT operate on steep slopes.To check a slope,
attempt to back up it (with the cutter deck down).
If the machine can back up the slope without the
wheels slipping, reduce speed and use extreme
caution. Under no circumstances should the
machine be operated on slopes greater than 15
degrees. ALWAYS FOLLOW OSHA APPROvED
OPERATION.
Do not wash a hot or running engine. Cold water
will damage the engine. Use compressed air to
clean the engine if it is hot.
2. Keep the entire mower clean to inhibit serious heat
damage to the engine or hydraulic oil circuit.
3. Check the drive belts for proper alignment and any
signs of wear. Correct and adjust if necessary.
1. This mower has been designed for good traction
and stability under normal mowing conditions.
However, caution must be used when traveling on
slopes, especially when the grass is wet. Wet grass
reduces traction and steering control. The Roll-Over
Protection System is standard equipment for this
machine. See Section 2.5, page 6 of this manual for
further details.
DANGER
To avoid injury from burns, allow the mower
to cool before removing the fuel tank cap and
refueling.
2. To prevent tipping or loss of control, do not start or
stop suddenly, avoid unnecessary turns and travel
at reduced speed. If tires lose traction, disengage
blades and proceed slowly off the slope.
4. After the mower has cooled down, fill the fuel tank
with fresh, clean fuel with a minimum cetane rating
of 40 at the end of every day of operation.
5. Check the tire pressure. Adjust pressure if
necessary.
3. Avoid sudden starts when mowing uphill. Sudden
starts may cause the machine to tip backwards.
4. Loss of traction may occur when traveling down hill.
Weight transfers to the front of the machine and
may cause the drive wheels to slip causing loss of
braking or steering.
4.10 REMOvING CLOGGED MATERIAL
5. Keep tires properly inflated.
DANGER
4.8 PARKING THE MOWER
ROTATING BLADES
1. Park the machine on a flat, level surface only. Do not
park the machine on an incline.
NEvER PUTYOUR HANDS INTOTHE DISCHARGE
CHUTE FOR ANY REASON!
2. Place the steering control levers in the neutral
position.
Shut off the engine and remove the key and
only then use a stick or similar object to remove
material if clogging has occurred.
3. Disengage the cutter blades.
4. Slow the engine to idle speed.
5. Engage the parking brake.
1. If the discharge chute becomes clogged, shut off
the engine and remove the ignition key. Using a stick
or similar item, dislodge the clogged material. Then
resume normal mowing.
6. Turn the ignition key to the OFF position and remove
the key.
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Section 4
4. Keep mower and discharge chute clean.
4.11 MOvING MOWER WITH ENGINE
STOPPED
5. When mowing wet or tall grass, mow the grass twice.
Raise the mower to the highest setting for the first
pass and then make a second pass to the desired
height.
To “free-wheel” or move the mower around without the
engine running, place the dump valve levers in the FREE-
WHEEL position (Figure 4-4).Disengage the parking brake
and move the mower by hand.The dump valve levers must
be returned to the DRIVE position and torqued to 10ft/lbs
to drive the mower.
6. Use a slow travel speed for trimming purposes.
7. Operate the engine at full throttle for best cutting.
Mowing with a lower RPM causes the mower to tear
the grass. The engine is designed to be operated at
full speed.
8. Use the alternate stripe pattern for best lawn
appearance. Vary the direction of the stripe each
time the grass is mowed to avoid wear patterns in
the grass.
DUMP VALVE
CONTROL
4.13 ADJUSTING CUTTING HEIGHT
The mower deck can be adjusted from a height of 1-inch to
6 inches at 1/4-inch intervals. To adjust the cutting height:
1. Push the cutting height adjustment foot pedal all
the way forward using your right foot until it locks in
place. (Figure 4-5).
2007 STTDVC
Figure 4-4. Dump Valve Control
2. Insert the lanyard pin into the cutting height index at
the desired cutting height. Push forward on the deck
lift foot lever, hold in place and lift up on the deck
release lever, (Figure 4-6). Slowly release the foot
pedal. A deck height decal is located on the cutting
height index as an aid in adjusting the deck to the
desired height. (Figure 4-5).
4.12 RECOMMENDATIONS FOR MOWING
1. Do not mow with dull blades. A dull blade will tear
grass, resulting in poor lawn appearance and
reduced mowing power.
LANYARD
PIN
WARNING
3
5 4
1
4 8
1
1 . 5
2
2 . 5
3
3 . 5
4
4 . 5
5
DO NOT operate without Discharge Chute,
Mulching Kit, or entire Grass Catcher properly
installed.
5 . 5
6
H E I G H T
C U T T I N G
2. The discharge chute must not be removed and
must be kept in the lowest position to deflect grass
clippings and thrown objects downward. Direct the
side discharge away from sidewalks or streets to
minimize cleanup of clippings. When mowing close
to obstacles, direct the discharge away from the
obstacles to reduce the chance of property damage
by thrown objects.
390S0140-2
HEIGHT ADJUSTMENT PEDAL
3. Cut grass when it is dry and not too tall. Do not cut
grass too short (cut off 1/3 or less of existing grass
for best appearance). Mow frequently.
Figure 4-5. Adjusting Cutting Height
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Section 4
DECK RELEASE
LEVER
4.15 ADJUSTING THE STEERING LEvERS
1. Position the seat to the desired location.
2. While in the operator's position with out the engine
running, move both steering levers forward and
reverse to check for full function control and comfort.
CUTTING
HEIG
6
5.5
HT
5
4.5
4
3.5
3
2.5
2
1.5
1
481543
3. If adjustment of the steering levers is needed, use
the following instructions to adjust.
A. Loosen the tension knob on the lever assembly.
B. Rotate the steering lever forward or backward to
achieve the optimum operating position.
C. Tighten the tension knob and repeat on the opposite
side.
390S0151-1
Figure 4-6. Deck Release Lever
D. While in the operator's position, bring the steering
levers out of the neutral lock position and check to
make sure both levers are even before operating.
4.14 ADJUSTING THE HEIGHT ADJUST
PEDAL
1. Position the seat to the desired location.
TENSION
KNOB
2. While in the operator's position without the engine
running, push down on the height adjust pedal to
check for full function control.
ROTATE
LEvER
3. The height adjust pedal can be located in three (3)
different positions for operator comfort and control.
See Figure 4-7.
TENSION
KNOB
5 4 3
1
4 8
1
1 . 5
2
2 . 5
3
3 . 5
4
4 . 5
5
5 . 5
6
H E I G H T
C U T T I N G
Figure 4-8. Adjusting Steering Levers
390S0140-2
HEIGHT ADJUSTMENT PEDAL LOCATIONS
Figure 4-7. Height Adjust Pedal Locations
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Section 4
4.16 TOWING (OPTIONAL HITCH
ACCESSORY)
1. NEVER allow children or others in or on towed
equipment.
2. Tow only with a machine that has a hitch designed
for towing. Do not attach towed equipment except at
the hitch point.
3. Follow manufacturer's recommendations for weight
limit for towed equipment. 250/lbs. maximum towing
weight.
4. NEVER tow on slopes. The weight of the towed
equipment may cause loss of traction and loss of
control.
5. Travel slowly and allow extra distance to stop.
6. Zero-turning with a trailer attached could cause
damage to the trailer or mower.
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Section 5
TROUBLESHOOTING CUTTING CONDITIONS
CONDITION
CAUSE
CURE
STRINGERS - OCCASIONAL
BLADES OF UNCUT GRASS
Low engine RPM
Run engine at full RPM
Ground speed too fast
Slow speed to adjust for conditions
Cut grass after it has dried out
Sharpen blades
Wet grass
Dull blades, incorrect sharpening
Deck plugged, grass accumulation
Clean underside of deck
Width of Deck
Belts slipping
Adjust belt tension
SGB020
STREAKING - STRIPS OF
UNCUT GRASS IN CUTTING
PATH
Dull, worn blades
Incorrect blade sharpening
Low engine RPM
Sharpen blades
Sharpen blades
Run engine at full RPM
Adjust belt tension
Belt slipping
Deck plugged, grass accumulation
Ground speed too fast
Wet grass
Clean underside of deck
Slow speed to adjust for conditions
Cut grass after it has dried out
Replace blades
Width of Deck
SGB018
Bent blades
STREAKING - STRIPS OF
UNCUT GRASS BETWEEN
CUTTING PATHS
Not enough overlapping between rows Increase the overlap of each pass
Width
of
Deck
Width
of
Deck
SGB019
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Section 5
TROUBLESHOOTING CUTTING CONDITIONS (CONT'D)
CONDITION
CAUSE
CURE
UNEvEN CUT ON FLAT
GROUND - WAvY HIGH-LOW
APPEARANCE, SCALLOPED
CUT, OR ROUGH CONTOUR
Lift worn from blade
Replace blade
Blade upside down
Mount with cutting edge toward ground
Clean underside of deck
Deck plugged, grass accumulation
Too much blade angle (deck pitch)
Deck mounted improperly
Bent spindle area
Adjust pitch and level
See your authorized SCAG dealer
See your authorized SCAG dealer
Sharpen blade
Width of Deck
Dull blade
SGB020
UNEvEN CUT ON UNEvEN
GROUND-WAvYAPPEARANCE,
HIGH-LOW SCALLOPED CUT,
OR ROUGH CONTOUR
May need to reduce ground speed, raise
cutting height, and/or change direction
of cut
Uneven ground
Width of Deck
SGB021
SLOPING RIDGE ACROSS
WIDTH OF CUTTING PATH
Tire pressures not equal
Wheels uneven
Check and adjust tire pressure
Check and adjust tire pressure
See your authorized SCAG dealer
Deck mounted incorrectly
Deck not level side-to side
Check for level and correct
Width of Deck
SGB023
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Section 5
TROUBLESHOOTING CUTTING CONDITIONS (CONT'D)
CONDITION
CAUSE
CURE
SCALPING - BLADES HITTING
DIRTORCUTTINGvERYCLOSE
TO THE GROUND
Low tire pressures
Check and adjust pressures
Ground speed too fast
Cutting too low
Slow speed to adjust for conditions
May need to reduce ground speed, raise
cutting height, change direction of cut,
and/or change pitch and level
May need to reduce ground speed, raise
cutting height, and/or change direction
of cut
Rough terrain
Width of Deck
Ground speed too fast
Wet grass
Slow speed to adjust for conditions
Cut grass after it has dried out
Adjust pitch and level
SGB022
STEP CUT - RIDGE IN CENTER
OF CUTTING PATH
Blades not mounted evenly
Bent blade
Replace blade
Internal spindle failure
See your authorized SCAG dealer
Mounting of spindle incorrect
See your authorized SCAG dealer
Width of Deck
SGB024
SLOPECUT-SLOPINGRIDGES
ACROSS WIDTH OF CUTTING
PATH
Bent spindle mounting area
Internal spindle failure
See your authorized SCAG dealer
See your authorized SCAG dealer
Bent deck housing
See your authorized SCAG dealer
Width of Deck
SGB025
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Section 6
ADJUSTMENTS
- Note -
6.1 PARKING BRAKE ADJUSTMENT
If this procedure does not achieve proper brake
adjustment, please contact your authorized Scag
dealer.
WARNING
LOOSEN HERE
Do not operate the mower if the parking brake
is not operable. Possible severe injury could
result.
The parking brake linkage should be adjusted whenever
the parking brake lever is placed in the “ENGAGE”position
and the parking brake will allow the mower to move. If the
following procedures do not allow you to engage the parking
brake properly, contact your Scag dealer for further brake
adjustments.
390S0152-1
1. Position a floor jack under the rear of the machine.
Raise the machine and support it to prevent it
from falling. Block the caster wheels to prevent the
machine from moving. Remove the drive wheels.
2" to 2-1/4" Clearance
Figure 6-1. Brake Adjustment
LOOSEN HERE
2. With the brake lever in the disengaged position,
check the distance between the top of the frame
tube and the bottom of the brake handle. The
distance should be 2" to 2-1/4" (See Figure 6-1).
3. If the distance is not at the specified measurement,
adjust by loosening the jam nuts at both ends of the
brake control rod and turning the rod until the proper
distance is achieved. (See Figure 6-1). Tighten the
jam nuts.
4. With the brake in the engaged position, check the
spring compression between the two flat washers on
the LH side of the machine. The distance should be
1-7/16". (See Figure 6-2).
5. If the distance is not at the specified measurement,
loosen the jam nut at the rod end side of the brake
actuator rod. (See Figure 6-2).
ADJUST HERE
Figure 6-2. Brake Rod Adjustment
6. Turn the adjustment bolt (clockwise to decrease
the spring compression or counter clockwise to
increase the spring compression) until the 1-7/16"
measurement is achieved and tighten the jam nut.
(See Figure 6-2).
7. Repeat steps 4 though 6 on the RH side of the
machine.
8. Replace the drive wheels and test the brake.
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Section 6
6.2 TRAvEL ADJUSTMENTS
LOOSEN HERE
Neutral or tracking adjustments will need to be made if:
A. The steering control levers are in the neutral
position and the machine creeps forward or backward.
(Neutral Adjustment, See Page 26).
B. The steering control levers are in the full forward
position and the mower pulls to one side or the
other when traveling in a forward direction. (Tracking
Adjustment, See Page 27).
ADJUST HERE
STT99RHCRA
NEUTRAL ADJUSTMENT
Figure 6-3. RH Steering Control Rod Adjustment
1. Be sure the dump valve levers are in the run position
and the steering control levers are in the neutral lock
position.
5. Tighten the jam nuts and repeat for the LH wheel.
(See Figure 6-4).
2. With an operator in the seat, start the engine and
disengage the parking brake.
3. Run the engine at full operating speed and check if
the machine creeps forward or backwards.
4. Adjust the RH wheel by loosening the jam nuts on
the steering control rod and turning the rod until the
drive wheel turns in the forward direction. Turn the
rod back until the drive wheel stops moving. Turn the
rod an additional 1/2 turn. (See Figure 6-3).
LOOSEN
HERE
CONTROL
ROD
390S0147
LOOSEN
HERE
LOOSEN HERE
390S0149
ADJUST HERE
390S0146
Figure 6-4. LH Steering Control Rod Adjustment
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Section 6
6. Actuate the steering control levers forward and
reverse several times and return them to the neutral
position.
- Note -
If after making the adjustment as outlined in step
1A, the machine creeps forward or backward, the
neutral adjustment must be made as described
on page 26.
7. Check that the drive wheels remained in neutral and
readjust if necessary.
8. Check that the steering control levers hit the stop
before the pumps reach full stroke. Adjust as
needed.
2. If at full speed the mower pulls left, it is an indication
that the right wheel is turning faster than the left
wheel. To adjust this condition, proceed as follows:
TRACKING ADJUSTMENT
A. Stop the machine and place the steering control
levers in the neutral position. Loosen the lock nuts
securing the ball joints at each end of the RH steering
control rod. Rotate the control rod to lengthen the rod
and tighten the lock nuts. This will cause the control
rod to stroke the RH pump less, slowing down the RH
CAUTION
wheel. (See Figure 6-3, page 26)
Stop the engine and remove the key from the
ignition before making any adjustments. Wait
for all moving parts to come to a complete stop
before beginning work.
- Note -
If after making the adjustment as outlined in step
2A, the machine creeps forward or backward, the
neutral adjustment must be made as described
on page 26.
CAUTION
The engine and drive unit can get hot during
operation causing burn injuries. Allow engine
and drive components to cool before making any
adjustments.
6.3 THROTTLE CONTROL AND CHOKE
ADJUSTMENTS
These adjustments must be performed by your Scag dealer
to ensure proper and efficient running of the engine.Should
either need adjustment, contact your authorized Scag
service center.
- Note -
6.4 BELT ADJUSTMENT
Before proceeding with this adjustment, be sure
that the caster wheels turn plus pivot freely and
that the tire pressure in the drive wheels is correct.
If the tire pressure is not correct, the machine will
pull to the side with the lower pressure.
WARNING
1. If at full speed the mower pulls right, it is an
indication that the left wheel is turning faster than
the right wheel. To adjust this condition, proceed as
follows:
Before removing any guards, shut the engine off
and remove the ignition key.
All drive belts and cutter deck belts are spring loaded and
self-tensioning.The springs should be checked periodically
A. Stop the machine and place the steering control
levers in the neutral position. Loosen the lock nuts
securing the ball joints at each end of the LH steering
control rod. Rotate the control rod to lengthen the rod
and tighten the lock nuts. This will cause the control
rod to stroke the LH pump less, slowing down the LH
wheel. (See Figure 6-4, page 26)
for proper alignment and wear.
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Section 6
2. Loosen the two (2) elastic stop nuts. Adjust the bolt
up or down on the adjustment bracket to adjust
the cutter deck until the distance from the bottom
of the cutter deck to the floor is the same as the
measurement on the RH side of the machine.
6.5 BELT ALIGNMENT
Belt alignment is important for proper performance of
your Scag mower. If you experience frequent belt wear
or breakage, see your authorized Scag service center for
belt adjustment.
3. Tighten the two elastic stop nuts to secure the cutter
deck in the proper position.
6.6 CUTTER DECK ADJUSTMENTS
CUTTER DECK PITCH
Cutter deck level, pitch and height are set at the factory.
However, if these adjustments should ever need to be
made, the following procedures will aid in obtaining the
proper cutter deck adjustment.
The pitch of the cutter deck should be equal between
the front and rear of the cutter deck for proper cutting
performance. To check for proper deck pitch, be sure
that the mower is on a flat, level surface and the tires are
properly inflated.
- Note -
Beforeproceedingwiththecutterdeckadjustments,
be sure that all tires are properly inflated.
Check the distance from the bottom of the cutter deck
to the floor at the rear RH side of the cutter deck directly
behind the cutter deck hanging chains. Next check the
distance from the bottom of the cutter deck to the floor at
the front RH side of the cutter deck directly in front of the
cutter deck hanging chains.The measurement at the front
of the cutter deck should be equal to the measurement
at the rear of the deck. Make these measurements at the
LH side of the cutter deck also. If the measurement at the
front of the deck is not equal, the cutter deck pitch must
CUTTER DECK LEvEL
The cutter deck should be level from side-to-side for
proper cutting performance. To check for level, be sure
that the mower is on a flat, level surface, the tires are
properly inflated and the cutter deck is set at the most
common cutting height that you will use. On the RH side
of the machine, check the distance from the bottom of the
cutter deck to the floor. Next check the distance from the
bottom of the cutter deck to the floor on the LH side of the
machine. Both measurements should be the same. If the
two measurements are different, the cutter deck level must
be adjusted as follows:
be adjusted as follows:
1. Loosen the jam nut on both adjusting rods. (See
Figure 6.6)
JAM NUT
ADJUST HERE
1. On the front LH side of the cutter deck locate the
cutter deck level adjusting bracket (See Figure 6.5)
ADJUST
HERE
LOOSEN
HERE
390S0174-1
Figure 6-6. Cutter Deck Level Adjustment
2. Using a wrench on the jam nut (See Figure 6.6) turn
the adjusting rods until the proper pitch is obtained
on both the RH and the LH side of the cutter deck.
Tighten both jam nuts.
Figure 6-5. Cutter Deck Level Adjustment
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Section 6
- Note -
To prevent the cutter deck from teetering, all four
(4) cutter deck hanging chains must have tension
on them. If all four chains do not have tension on
them and the deck teeters, you must readjust the
cutter deck as outlined in the procedures above.
DECK
STOP
CUTTER DECK HEIGHT
1/4"
The cutter deck height adjustment is made to ensure that
the cutter deck is cutting at the height indicated on the
cutting height index gauge.To check for proper deck height,
be sure that the mower is on a flat, level surface and the
390S0175-1
tires are properly inflated.
Figure 6-8. Cutter Deck Stop
1. Place the cutter deck in the transport position.
Loosen the jam nuts on both ends of the deck height
control rod. (See Figure 6.7)
3. Check the cutter deck cutting height by placing the
lanyard pin in the 3" position on the cutting height
index. Release the deck from the transport position
and allow the deck to move to the 3" cutting height
position.
LANYARD
LOOSEN HERE
PIN
4 3
5
8 1
4
1
4. Check the measurement from the floor to the
cutter blade tip. If the measurement is not at 3",
an adjustment can be made using the deck height
control rod. (See Figure 6.7)
1 . 5
2
2 . 5
3
3 . 5
4
4 . 5
5
5 . 5
6
H E I G H T
C U T T I N G
- Note -
If an adjustment had to be made, be sure that the
cutter deck can easily be locked into the transport
position.
390S014A-2
HEIGHT ADJUSTMENT PEDAL
Figure 6-7. Cutter Deck Height Adjustment
2. Turn the control rod (See Figure 6.7) until there is a
1/4" space between the rear deck stop and the top
of the cutter deck. (See Figure 6.8). Tighten the jam
nuts on the control rod.
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Section 6
To adjust the Custom-Cut Baffle height:
CUSTOM-CUT BAFFLE ADJUSTMENT
1. Place the cutter deck in the transport position.
The Custom-Cut Baffle is designed to deliver optimum
airflow and superior cutting performance in any type of
grass. The Custom-Cut Baffle can be raised or lowered
to precisely tailor the deck's performance for the type of
grass being cut.The baffle can be set in seven (7) different
2. Remove the hardware securing the Custom-Cut
Baffle to the cutter deck.
- Note -
positions for optimum performance.
Hardware location used in the illustrations are for
reference only. Location of hardware may vary
depending on cutter deck size.
A. 3-1/2" or 3-3/4" Position - (See Figure 6-9).For very
tall, wiry or tough-to-cut grass.
3. Move the Custom-Cut Baffle to desired position.
(See Figures 6-9).
B. 4" (factory setting), 4-1/4" or 4-1/2" Position - (See
Figure 6-9).For general purpose cutting.This gives the
best mix of cutting performance in all types of grass.
4. Reinstall the mounting hardware. Torque hardware to
39 ft-lbs.
C. 4-3/4" or 5-1/4" Position - (See Figure 6-9).Placing
the baffle in either the 4-3/4" or 5-1/4" setting will
enhance fall cutting (leaf pickup) and reduce cutter
deck "blowout".
1
2
3
4
A
B
1
2
3
4
A
B
Custom-Cut Baffle Adjustment
Mounting Slot Selected
Mounting Hardware Location
Slot “A”
Height (inches)
Hole 1
3-3/4”
Hole 2
4-1/4”
Hole 3
4-3/4”
Hole 4
5-1/4”
Slot “B”
Height (inches)
Hole 2
3-1/2”
Hole 3
4”
Hole 4
4-1/2”
Figure 6-9. Custom-Cut Baffle Adjustment
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Section 6
6.7 ELECTRIC CLUTCH ADJUSTMENT
ADJUSTMENT NUTS
The electric clutch serves two functions in the operation of
the mower. In addition to starting and stopping the power
flow to the cutter blades, the clutch also acts as a brake to
assist in stopping blade rotation when the PTO is switched
off or the operator presence circuit is interrupted.
When the clutch is disengaged, the air gap between the
armature and rotor must be adjusted to fifteen thousandths
of an inch, 0.015, for proper operation. The airgap
adjustment is made at three bolts on the clutch.There are
three inspection windows, one next to each adjusting bolt.
See Figure 6-3.
INSPECTION WINDOW (x3)
ADJUSTMENT NUTS
Figure 6-1. Clutch Air Gap Adjustment
Figure 6-1. Clutch Air Gap Adjustment
This adjustment should be done every 500 hours of
operation or annually, whichever comes first. In cases
where the machine is heavily used, airgap settings should
be checked more often.
1. Locate the inspection windows on the clutch.
2. Place a 0.015 feeler gauge in the slot between the
rotor and the armature.
3. Tighten or loosen the adjusting bolt as needed to
acheive the 0.015 inch airgap. See Figure 6-4.
Perform this operation at all three inspection
windows.
If the air gap is too narrow, the clutch armature may drag
when disengaged, resulting in premature failure.
If the air gap is too wide, the clutch may be slow to engage
as the magnet must pull the armature in from a greater
distance.
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Section 7
MAINTENANCE
7.1 MAINTENANCE CHART - RECOMMENDED SERvICE INTERvALS
HOURS
PROCEDURE
BREAK-IN
(FIRST 10)
COMMENTS
8
40
100
200
500
Check all hardware for
tightness
X
Check hydraulic oil level
See paragraph 7.3
X
X
X
Check all belts for proper See paragraph 7.8
alignment
Change engine oil and filter
See paragraph 7.4
Check hydraulic hoses for Use extreme caution when
X
X
leaks
checking the hydraulic hoses.
See paragraph 2.6
Check coolant level
Check engine oil level
*Clean mower
See paragraph 7.12
See paragraph 7.4
See paragraph 7.13
See paragraph 7.9
See paragraph 7.2
See paragraph 7.10
See paragraph 7.12
X
X
X
X
X
X
Check condition of blades
Apply grease to fittings
Check tire pressure
Check coolant level
Inspect seat belt for wear or See paragraph 2.5
damage
X
X
Check the operator interlock See paragraph 4.2
system
Check battery electrolyte level See paragraph 7.7
clean battery posts and cables
X
X
Check belts for proper See paragraph 7.8
alignment
Apply grease to fittings
See paragraph 7.2
See paragraph 7.4
See paragraph 7.6
X
X
X
Change engine oil
*Clean air cleaner element
Check lubricant in cutter deck See paragraph 7.11
gearbox
X
* Perform these maintenance procedures more frequently under extreme dusty or dirty conditions
30
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Section 7
MAINTENANCE CHART - RECOMMENDED SERvICE INTERvALS (CONT'D)
HOURS
PROCEDURE
BREAK-IN
(FIRST 10)
COMMENTS
8
40
100
200
500
Apply grease to fittings
Check hardware for tightness
Change engine oil filter
Check hydraulic oil level
Replace engine fuel filter
See paragraph 7.2
X
X
X
X
See paragraph 7.4
See paragraph 7.3
See paragraph 7.5
X
X
X
X
X
Drain hydraulic system and Use SAE 20W50 Motor Oil.
replace hydraulic oil
See paragraph 7.3
Replace hydraulic oil filter
See paragraph 7.3
Replace cutter deck gearbox See paragraph 7.11
lubricant
Change coolant
See paragraph 7.12
7.2 LUBRICATION
GREASE FITTING LUBRICATION CHART (SEE FIGURE 7-1)
NO. OF
PLACES
LOCATION
LUBRICATION INTERvAL
LUBRICANT
Chassis Grease
1 Caster Wheel Pivot *
2 Caster Wheel Bearings
3 Brake Actuator
500 Hours/Yearly
100 Hours/Monthly
200 Hours/MonthlY
40 Hours/Weekly
100 Hours/Monthly
40 Hours/Weekly
40 Hours/Weekly
200 Hours/Monthly
40 Hours/Weekly
2
2
2
4
2
1
3
1
3
Chassis Grease
Chassis Grease
Chassis Grease
Chassis Grease
4 Cutter Deck Bellcrank
5 Cutter Deck Pusharms
6 PTO Spindle
+Lithium MP White Grease 2125
+Lithium MP White Grease 2125
Chassis Grease
7 Cutter Deck Spindle
8 Brake Handle
9 Cutter Deck Drive Shaft
Chassis Grease
+ Compatible Greases:
Mobilix #2 found at Mobil Service Stations
Ronex MP found at Exxon Service Stations
Super Lube MEP #2 & Super Stay-M #2 found at Conoco Stations
Shell Alvania #2 found at Shell Service Stations
Lidok EP #2 found at industrial shops
* Remove plug and insert grease zerk. Before filling wth grease, remove dust cap from the top of the pivot.
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Section 7
GREASE FITTING LUBRICATION
LUBRICANT / INTERVAL
LITHIUM MP WHITE GREASE 2125
( 40 HOURS / WEEKLY )
CHASSIS GREASE
( 100 HOURS / BI-MONTHLY )
CHASSIS GREASE
( 200 HOURS / MONTHLY )
CHASSIS GREASE
( 500 HOURS / YEARLY )
4
1
2
7
3
6
5
8
1
9
4
3
10
2
9
5
390S0145-2
Figure 7-1. Lubrication Fitting Points
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Section 7
B. CHANGING HYDRAULIC OIL
7.3 HYDRAULIC SYSTEM
The hydraulic oil should be changed after every 500 hours
or annually, whichever occurs first. The oil should also be
changed if the color of the fluid has become black or milky.
A black color and/or a rancid odor usually indicates possible
overheating of the oil, and a milky color usually indicates
A. CHECKING HYDRAULIC OIL LEvEL
The hydraulic oil level should be checked after the first 10
hours of operation. Thereafter, check the oil after every
200 hours of machine operation or monthly, whichever
occurs first.
water in the hydraulic oil.
- Note -
- IMPoRtANt -
The hydraulic oil should be changed if you notice
the presence of water or a rancid odor to the
hydraulic oil.
If the oil level is consistently low, check for leaks
and correct immediately.
1. Wipe dirt and contaminants from around the
reservoir cap. Remove the cap from the hydraulic oil
reservoir.
1. Park the mower on a level surface and stop the
engine.
2. Place a suitable container under the hydraulic oil
filter. Remove the fill cap from the reservoir. Remove
the hydraulic oil filter. (See Figure 7-3). Allow the
fluid to drain into the container and properly discard
it.
2. Visually check the level of hydraulic oil. Hydraulic
oil must be at least 3" inches from top of the filler
neck. If the level cannot be determined visually,
use a clean tape measure to check the level. If the
fluid is low, add 20W50 motor oil. DO NOT overfill;
(overfilling the oil reservoir may cause oil seepage
around the cap area).
3. Install a new filter element. See Procedure C.
- Note -
3. Clean the fill cap and install it onto the reservoir.
Before refilling the hydraulic oil reservoir the
hydraulic oil filter should be changed as outlined
in Procedure C on the next page.
Hydraulic Oil
Reservoir
4. Fill the reservoir to 3" inches from the top of the filler
neck with 20W50 motor oil.
5. Replace the reservoir fill cap. Start the engine and
drive forward and backward for two minutes. Check
the oil level in the reservoir. If necessary, add oil to
the reservoir.
2007 STT HOR
Figure 7-2. Hydraulic oil Reservoir
HYDRAULIC
OIL FILTER
390S0155-1
Figure 7-3. Hydraulic oil Filter
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Section 7
C. CHANGING HYDRAULIC OIL FILTER
ELEMENT
C. CHANGING ENGINE OIL FILTER
After the first 20 hours of operation, replace the engine
oil filter. Thereafter, replace the oil filter after every 200
hours of operation or every month, whichever occurs first.
Refer to Engine Operator’s Manual for instructions (See
The hydraulic oil filter should be changed after every 500
hours of operation or annually, whichever occurs first.
1. Remove the oil filter element (Figure 7-3) and
properly discard it. Fill the new filter with clean oil
and install the filter. Hand tighten only.
Figure 7-4).
7.5 ENGINE FUEL SYSTEM
2. Run the engine at idle speed with the speed control
lever in neutral for five minutes.
3. Check the oil level in the hydraulic tank. It must be
3" inches from the top of the filler neck. If necessary,
add SAE 20W50 motor oil.
DANGER
To avoid injury from burns, allow the mower
to cool before removing the fuel tank cap and
refueling.
7.4 ENGINE OIL
Engine Fuel
Filter
Engine Oil
Filter
Figure 7-4. engine oil Filter
Fuel Shutoff Valve
2008 STT-CAT EFF
A. CHECKING ENGINE CRANKCASE OIL LEvEL
Figure 7-5. Fuel Filter
The engine oil level should be checked after every 8
hours of operation or daily as instructed in the Engine
Operator’s Manual furnished with this mower.
A. FILLING THE FUEL TANK
Fill the fuel tank at the beginning of each operating day to
within one inch below the filler neck. Do not overfill. Use
clean, fresh diesel fuel with a minimum cetane rating of
40.
B. CHANGING ENGINE CRANKCASE OIL
After the first 20 hours of operation, change the engine
crankcase oil and replace the oil filter. Thereafter,
change the engine crankcase oil after every 100 hours
of operation or bi-weekly, whichever occurs first. Refer to
the Engine Operator’s Manual furnished with this mower
for instructions.
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Section 7
B. REPLACING IN-LINE FUEL FILTER
ELEMENTS
7.7 BATTERY
- Note -
WARNING
The fuel filter is located below the air filter. Figure
7-5 is for illustration purposes only.
Lead-acid batteries produce flammable and
explosive gases. To avoid personal injury when
checking, testing or charging batteries, DO NOT
use smoking materials near batteries. Keep arcs,
sparks and flames away from batteries. Provide
proper ventilation and wear safety glasses.
The in-line pre-filter (Kubota engine only) and the engine
fuel filter (Figure 7-5) should be replaced after every 500
hours of operation or annually, whichever occurs first.
1. Close the shut-off valve.
2. Remove and replace the engine fuel filter. Open the
fuel shut-off valve.
7.6 ENGINE AIR CLEANER
WARNING
Battery posts, terminals, and related accessories
contain lead and lead compounds, chemicals
known to cause cancer and reproductive harm.
Wash hands after handling.
A. CLEANING AND/OR REPLACING AIR
CLEANER ELEMENT
For any air cleaner, the operating environment dictates the
air cleaner service periods. To make it convenient for you
we have installed an "Air Cleaner Indicator" which is located
just behind the air filter. The indicator window will turn red
when it is time to service the air filter. Do not service the
filter unless this indicator is red.
WARNING
- Note -
Electric storage battery fluid contains sulfuric
acid which is POISON and can cause SEvERE
CHEMICAL BURNS. Avoid contact of fluid with
eyes, skin, or clothing. Use proper protective gear
when handling batteries. DO NOT tip any battery
beyond 45° angle in any direction. If fluid contact
does occur, follow first aid suggestions below.
In extremely dusty conditions it may be necessary
to check the indicator daily to prevent engine
damage.
1. Snap open the two clips securing the air cleaner
cover to the air cleaner box. Remove the air cleaner
cover, clean the duck bill vent of any dust and set the
cover aside.
BATTERY ELECTROLYTE FIRST AID
2. Remove the air cleaner element and inspect.
External Contact — Flush with water.
3. Clean or replace the element as recommended by
the engine manufacturer.
Eyes — Flush with water for at least 15 minutes
and get medical attention immediately.
4. Replace the air filter cover and be sure to snap the
two clips closed.
5. Reset the air cleaner indicator by pushing the button
on the end of the indicator. The indicator window
should return to clear.
Internal — Drink large quantities of water. Follow
with Milk Of Magnesia, beaten egg, or vegetable
oil. Get medical attention immediately. In case of
internal contact, DO NOT give fluids that would
induce vomiting.
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Section 7
B. CHARGING THE BATTERY
7.8 DRIvE BELTS
Refer to the battery charger’s manual for specific
instructions.
All drive belts are spring loaded and self-tensioning,
however after the first 2, 4, 8 and 10 hours of operation,
the belts should be checked for proper alignment and wear.
Thereafter, check the belts after every 40 hours of operation
or weekly, whichever occurs first.
Under normal conditions the engine’s alternator will have
no problem keeping a charge on the battery. If the battery
has been completely discharged for a long period of time,
the alternator may not be able to recharge the battery, and
a battery charger will be required.
- Note -
If you experience frequent belt wear or breakage,
see your authorized Scag service center for belt
adjustment.
DO NOT charge a frozen battery.It may explode and cause
injury. Let the battery warm before attaching a charger.
7.9 CUTTER BLADES
Whenever possible, remove the battery from the mower
before charging and make sure the electrolyte covers the
plates in all cells.
A. BLADE INSPECTION
1. Remove the ignition key before servicing the blades.
WARNING
BATTERIES PRODUCE ExPLOSIvE GASES.
Charge the battery in a well ventilated space so
gases produced while charging can dissipate.
2. Raise the mower deck to the highest position. Place
the lanyard pin in the highest cutting height positon
to prevent the cutter deck from falling.
WARNING
Always wear proper hand and eye protection when
Charging rates between 3 and 50 amperes are satisfactory
if excessive gassing or spewing of electrolyte does not
occur or the battery does not feel excessively hot (over
125°F). If spewing or gassing occurs or the temperature
exceeds 125°F, the charging rate must be reduced or
temporarily stopped to permit cooling.
working with cutter blades.
3. Check the cutter blades for straightness. If the cutter
blades appear bent, they will need to be replaced.
C. JUMP STARTING
WARNING
Do not attempt to straighten a bent blade, and
never weld a broken or cracked blade. Always
replace it with a new blade to assure safety.
1. The booster battery must be a 12 volt type. If a
vehicle is used for jump starting, it must have a
negative ground system.
2. When connecting the jumper cables, connect the
positive cable to the positive battery post, then
connect the negative cable to the negative battery
post.
4. If a blade cutting edge is dull or nicked, it should be
sharpened. Remove the blades for sharpening. See
"Blade Replacement."
- Note -
Keep the blades sharp.Cutting with dull blades not
only yields a poor mowing job, but slows the cutting
speed of the mower and causes extra wear on the
engine and the blade drive by pulling hard.
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Section 7
- Note -
B. BLADE SHARPENING
The front of the machine will have to be raised
slightly to remove the blade bolt from the cutter
spindle.
- Note -
If possible, use a file to sharpen the blade. Using
a wheel grinder may burn the blade.
4. To install the new cutter blade, put the flat washer
onto the blade bolt and slide the bolt into the hole in
the cutter blade.
- Note -
DO NOT sharpen the blades beyond 1/3 of the
width of the blade. See Figure 7-6.
HEx NUT-TORqUE
TO 75 LB-FT
1. Sharpen the cutting edge at the same bevel as the
original. See Figure 7-6. Sharpen only the top of the
cutting edge to maintain sharpness.
SPINDLE
CUTTER
SHAFT
DECK
Angle Blade Back
Do Not Cut In
HEx HEAD
BOLT / NUT
x
X Must NOT Exceed
SPINDLE
ASSEMBLY
1/3 Blade Width
30
SGB033
CUTTER BLADE
SPACER
Figure 7-6. Blade Sharpening
2. Check the balance of the blade. If the blades are out
of balance, vibration and premature wear can occur.
See your authorized Scag dealer for blade balancing
or special tools, if you choose to balance your own
blades.
CUTTER
BLADE
HEx HEAD BOLT
WASHER
390S0160
C. BLADE REPLACEMENT
Figure 7-7. Blade Replacement
- Note -
Be sure that the blade is installed with the lift wing
toward the top.
WARNING
Always wear proper hand and eye protection when
working with cutter blades.
5. Install the spacer onto the blade bolt and insert the
bolt into the cutter spindle shaft.
6. Install the hex nut to the blade bolt at the top of the
cutter spindle. Secure the blades from rotating and
torque to 75 ft/lbs. (See Figure 7-7)
1. Remove the ignition key before replacing the blades.
2. Raise the mower deck to the highest position. Place
the lanyard pin in the highest cutting height positon
to prevent the cutter deck from falling.
7.10 TIRES
3. Secure the cutter blades to prevent them from
rotating, (use the optional Blade Buddy tool P/N
9212, to assist in securing the cutter blades), remove
the nut from the blade attaching bolt. Remove the
cutter blade, bolt and spacer from the spindle shaft.
(Figure 7-7)
Check the tire pressures after every 8 hours of operation
or daily.
Caster Wheels
Drive Wheels
Flat Free
12 PSI
37
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Section 7
B. CHANGING LUBRICANT
7.11 CUTTER DECK GEARBOx
A. CHECKING LUBRICANT LEvEL
The lubricant in the cutter deck gearbox should be changed
every 500 hours of operation or yearly, whichever occurs
first.
1. Place a suitable container beneath the cutter deck
gearbox and locate the gearbox drain plug.
CAUTION
The cutter deck gearbox can reach high operating
temperatures. Allow the cutter deck gearbox to
cool before servicing.
2. Remove the drain plug and drain the lubricant into
the container and properly discard it.
3. Re-install the drain plug and add EP-80/90 lubricant
through the check plug hole in the gearbox until it is
level with the bottom of the check plug hole. Install
the check plug and tighten securely.
7.12 COOLING SYSTEM
WARNING
To avoid burns, always allow the engine to cool
before removing the radiator cap.
CUTTER DECK
GEARBOX
CHECK
PLUG
A. CHECKING COOLANT LEvEL
390S0161
The coolant level should be checked before each day of
operation.
Figure 7-8. Cutter Deck Gearbox
The fluid level in the cutter deck gearbox (Figure 7-8) should
be checked after every 100 hours of operation or bi-weekly,
whichever occurs first.
1. Remove the radiator cap by turning it slowly
counterclockwise to the first stop and allow any
pressure to be released. Push down on the cap and
turn counterclockwise to remove.
1. Lower the cutter deck to to its lowest position to gain
access to the cutter deck gearbox.
2. Visually check the coolant level. The coolant level
should be up to the bottom of the filler neck as
shown in Figure 7-9. Add a mixture of coolant and
soft water as needed.
2. Clean and remove the check plug from the side of
the gearbox (See Figure 7-8). Visually check that the
lubricant level is up to the bottom edge of the check
plug hole. If lubricant is low, add SAE 80/90 lubricant
through the check plug hole in the gearbox until it is
level with the bottom of the check plug hole. Install
the check plug and tighten securely.
- Note -
Refer to the coolant manuafacturer's instructions
for the proper coolant mixture ratio.
38
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R
Section 7
Fill to Bottom of
Filler Neck
C. CHECKING THE FAN BELT TENSION
Periodically check the fan belt tension. The belt should
deflect 1/2" with 10 pounds of pressure. See your Scag
dealer if the belt is in need of adjustment or replacement.
7.13 BODY, DECK, AND UPHOLSTERY
CAUTION
030467-13
Do not wash any portion of the equipment while it
is hot. Do not wash the engine; use compressed
air.
Figure 7-9. Coolant Level in Radiator
3. Replace the radiator cap. Push down on the cap and
turn clockwise until it stops.
- Note -
1. After each use, wash the mower and cutter deck.
Use cold water and automotive cleaners. Do not use
pressure cleaners.
The cooling system should be flushed and the
coolant replaced every 500 hours of operation or
annually. See your Scag dealer for proper coolant
replacement.
2. Do not spray electrical components.
3. Use a mild soap solution or a vinyl/rubber cleaner to
clean the seat.
B. CLEANING THE RADIATOR DEBRIS SCREEN
4. Repair damaged metal surfaces using Scag touch-
up paint available from your authorized Scag dealer.
Wax the mower for maximum paint protection.
After each day of operation, remove and clean the radiator
debris screen.
CAUTION
To avoid personal injury, always wear safety
glasses when using compressed air.
1. Release latches and pull the debris screen up to
remove.
2. Clean the debris screen with compressed air or a
water hose.
- Note -
Check the radiator for excessive debris and clean
with compressed air. Never spray a hot engine
with water, use only compressed air to remove
debris.
3. Re-install the debris screen to the radiator.
39
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Section 8
ILLUSTRATED PARTS LIST
8.1 SCAG APPROvED ATTACHMENTS AND
ACCESSORIES.
Attachments and accessories manufactured by
companies other than Scag Power Equipment are
not approved for use on this machine.
Scag approved attachments and accessories:
• GC-STT-61V (p/n 9060)
STT61V-28CAT-SS requires GC-28 CAT Install
(p/n 9072C)
• GC-STT-CS61V (p/n 9064)
STT61V-28CAT-SS requires GC-28 CAT Install
(p/n 9072C)
• Mulch Plate (p/n 9288, 920F)
• Hurricane Mulch (p/n 9285, 920E)
• STT Hitch (p/n 9242)
• STT Bumper (p/n 9256)
• STT Lights (p/n 9279)
• Tiger Striper (p/n 9269)
• Blade Buddy (p/n 9212)
40
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Section 8
61v & 72v Cutter Deck
3
2
4
9
8
7
6
5
3
17
18
10
3
3
11
4
14 15 16
5
4
1
13
12
72V Only
7
12
A
7
6
84
85
6
83
5
19
20
7
11
62
11
69
63
B
12
61
A
64
57
65
21
22
68
20
48
66
67
23
58
6
48
61
59
71
23
72
70
60
56
24
57
82
54
57
59
73
20
80
23
25
55
B
74
48
81
73
79
78
26
53
75
27
77
52
20
76
50
30
35
51
36
50
37
49
22
14
28
29
38
23
39
44A
44
44A
48
47
43
42
34
33
30
40
46
45
31
32
6
41
7
STT-EFI 2008 CD
42
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R
Section 8
61v & 72v Cutter Deck
Ref.
Ref.
No.
Part No.
No.
Description
61
72
Part No.
Description
61
72
45
424841
424917
04003-23
424209
424856
04021-22
Baffle, Custom Cut 61V
Baffle, Custom Cut 72V
Bolt, Carriage 3/8-16 x 1”
Discharge Baffle 61V
Discharge Baffle 72V
Nut, Hex Elastic Stop
5/16-18 Grd 8
Wheel, Anti-Scalp
Bushing, .376 I.D. Oilite
Anti-Scalp Wheel
Locknut, 3/8-16 Center Lock
Anti-Scalp Wheel Bracket
Bolt, Carriage 3/8-16 x 4”
Bolt, Hex Serrated Flange
3/8-16 x 1”
U-Nut, 3/8-16
Nut, Hex Serrated Flange
3/8-16
Bolt, Hex Head 3/8-16 x
1-1/2”
Bolt, Hex Head 3/8-16 x 3”
Pivot, Idler - Short
Bearings, Ball
Spring, Cutter Deck
Flatwasher,3/8-.39 x .938 x
.105 HD
Bolt, Hex Head 3/8-16 x
1-1/2” Grd 8
Idler Arm, Cutter Deck
Bolt, Carriage 5/16-18 x 3/4”
Nut, Elastic Stop 5/16-18
Mounting Plate, RH Gearbox
Gearbox Assembly, Deck
Drive
Spacer, Gearbox Mount
Mounting Plate, LH Gearbox
Bolt, Hex Head 5/16-18 x
4-3/4”
Lockwasher, 5/16”
Flatwasher, 5/16” (.375 x
.875 x .083)
Nut, Elastic Stop 7/16-14
Bolt, Carraige 5/16-18 x 3/4”
Flatwasher, 7/16-.500 x 1.25
x .083
X
1
2
481625-01
424325
422708
422677
04001-172
Wing Nut, 3/8-16
Belt Cover
Belt Cover RH
Belt Cover LH
Bolt, Hex Head 1/4-20 x 1”
Grd 8
Nut, 5/8-11 UNC
Tapered Hub, 1-1/8” Bore
Flatwasher, 3/8” (.391 x .938
x .105)
Nut, Hex Elastic Stop 3/8-16
Tapered Hub, 1” Bore
Key, 1/4 x 1/4 x 1-1/4”
Pulley, 6.75 O.D.
Pulley, 6.95 O.D.
Pulley, 5.75 O.D. - CAT
Pullwy, 6.35 O.D. - Kubota
Pulley, 6.75 O.D.
Pulley, Idler
Belt, Cutter Deck Drive - Cat
Belt, Cutter Deck Drive -
Kubota
Belt, Cutter Deck Drive
Grease Fitting
Pusharm (incl. items 14, 16,
& 18)
Nut, Hex Head 5/8-18 UNF
Nut, Hex Elastic Stop 5/8-11
Rod End, 5/8” Male RH
Thread
Bolt, Hex Head 5/8-11 x
4-1/2”
Nut, Hex Serrated Flange
5/16-18
Push Arm Shaft
Roller Shaft
Bolt, Hex Head 5/16-18 x
1-3/4”
Wheel, Anti-Scalp
Spindle Assembly
Spindle Shaft
Seal, Top
Spindle Housing
Spacer, Outside
Bearing Assembly
Seal, Bottom
Nut, Special 1-1/16-18
Spindle Bushing, Bottom
Spacer, Inside
Relief Fitting, Tapered
Spindle
Wear Pad
X
X
X
X
X
X
X
46
47
X
X
X
X
X
X
X
X
X
3
X
X
X
X
48
X
X
X
X
X
X
X
X
X
X
X
X
X
X
4
5
6
04020-09
48926
04041-07
49
50
51
52
53
54
55
482295
48100-15
481632
04021-05
422478
04003-26
04017-27
X
X
X
X
X
X
X
X
X
7
8
9
10
04021-09
48141
04063-0
482746
482747
482744
482745
482746
483215
483741
481558
X
X
X
X
X
56
57
04110-03
04019-04
11
X
X
X
X
X
X
58
04001-20
12
13
X
X
X
X
X
X
X
X
X
X
X
X
59
60
61
62
63
04001-54
43681
48224
483704
04043-04
X
X
481980
48114-04
461516
X
X
14
15
X
X
X
X
X
X
X
X
64
04001-136
16
17
18
04020-16
04021-13
48763
X
X
X
X
X
X
X
X
X
X
65
66
67
68
69
461842
04003-12
04021-10
424798
X
X
X
X
19
20
04001-79
04019-03
482486
X
X
X
X
X
X
X
X
X
X
X
X
70
71
72
43763
424799
04001-154
21
22
23
451240
45944
04001-12
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
73
74
04030-03
04040-15
24
25
26
27
28
29
30
31
32
33
34
35
48038
461663
43589
481024
43644
43312
481022
481025
481035
43297
43296
48677
X
X
X
X
X
X
75
76
77
04021-11
04003-12
04040-11
X
X
X
X
78
79
04001-62
04003-40
Bolt, Hex Head 3/8-16 x
3-1/4”
Bolt, Carriage 7/16-14 x
1-1/4”
Bolt, Deck Adjust
Lever Assy, Deck Level (Incl.
80)
Cutter Deck 61 V w/Decals
Cutter Deck 72 V w/Decals
Spring, Discharge Chute
Discharge Chute 61V
Discharge Chute 72V
Bolt, Hex Head 5/16-18 x
4-1/2”
X
X
X
X
80
81
483167
461929
X
X
X
X
X
X
36
483176
483174
82
462143
462144
483378
461846
462132
04001-108
Wear Pad
X
X
X
X
X
X
X
37
38
39
40
41
04040-04
04021-04
04063-08
04043-06
04001-41
Flatwasher, 5/16”
Nut, Center Lock 5/16-18
Key, 1/4 x 1/4 x 2”
Flatwasher, 5/8” Hardened
Bolt, Hex Head 5/8-11 x
9-1/2”
Cutter Blade, 21”
Cutter Blade, 24.5”
Spacer, Spindle Bottom
Bolt, Hex Head 5/16-18 x
X
X
X
X
83
84
X
X
X
X
85
X
X
X
X
42
482879
482882
43590
X
X
43
44
X
04001-176
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R
Section 8
CUTTER DECK CONTROLS
10
14
19
9
18
17
8
20
21
11
7
4
3
16
12
2
1
13
6
4
15
5
14
44
43
42
45
41
14
35
39
40
23
24
19
33
25
26
19
36
37
38
14
34
22
14
27
28
19
28
14
29
21
25
19
19
14
26
24
31
14
19
25
32
24
30
CUTTER DECK
STT-28CAT 2008CDC
44
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Section 8
CUTTER DECK CONTROLS
Ref.
No.
Part No.
Description
1
481764
Link, Deck Lift
2
3
4
5
04020-28
481766
04050-10
45905
Nut, Jam 1/2-20 LH
Rod End, Female - 1/2-20 LH
Ring, Retaining 1/2” External “E”
Bellcrank Weldment, RH Rear
Pin, Decklift
6
43487
7
8
9
482429
Slide Weldment, Height Adjustment
Bolt, Shoulder 1/2 x 3/4”
Bushing, .502 ID.
04009-02
48100-14
481428
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Grip, Deck Latch
462102
424857
Deck Latch (Includes items 9 & 10)
Lockplate, Decklift
Screw, Cap 5/16-18 x 3” FHHS
Nut, Hex Serrated Flange 3/8-16
Guide, Long
04014-03
04019-04
423509
04003-04
422381
Bolt, Carriage 5/16-18 x 1”
Guide, Short
423463
Bracket, Cutting Height Adjustment
Bolt, Hex Head 3/8-16 x 1-1/2”
Nut, Hex Serrated Flange 5/16-18
Spring, Helper (61” & 72” Cutter Decks Only)
Grease Fitting
Swivel Joint, LH
Nut, Hex 5/8-11
Flatwasher, 5/8” (.656 x 1.312 x .095)
Cotter Pin, 3/16 x 1”
Bellcrank Weldment, LH Rear
Chain
04001-20
04019 -03
481598
48114-04
43526
04020-09
04040-09
04061-07
45904
48540
04004-48
461929
Stud, 5/8-11 x 26.0”
Lever Assembly, Deck Level
Swivel Joint, RH
43527
04021-05
04050-08
04041-14
481547
04067-09
04021-09
424504
04021-07
04030-07
04105-01
481765
04001-74
04020-27
43391
Locknut, 3/8-16 Center Lock
Ring, Retaining 1” External “E”
Flatwasher, 1” (1.062 x 1.50 x .048)
Lanyard, Deck Height Pin
Ring Pin, 1/2 x 3.06”
Nut, 3/8-16 Elastic Stop
Foot Pedal, Height Adjustment
Nut, Hex Elastic Stop 1/2-13
Lockwasher, 5/8”
Capscrew, 5/8-11 x 1-1/2”
Rod End, Female - 1/2-20 RH
Bolt, Hex Head 1/2-13 x 3”
Nut, Jam 1/2-20 RH
Spacer, Decklift Pedal
45
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Section 8
SHEET METAL COMPONENTS
Ref.
No.
Part No.
Description
1
2
04001-145
41020
Bolt, Hex Head 1/2-13 x 3.5”
Weight
3
4
5
6
04021-07
481284
462145
Nut, Hex Elastic Stop 1/2-13
Bumper, Rubber 5/16-18 x 5/8”
Main Frame Assembly w/Decals
Foot Plate
424847
7
8
9
04001-19
04041-07
04019-03
04001-45
04021-09
43606
462147
451481
04003-01
*
422682
04003-12
462007
48661
04029-01
04021-09
424488
04001-19
04019-04
04017-27
451480
04021-09
04021-11
04030-05
04001-28
451992
451993
481559
04021-20
481657
481025
04021-07
43584
43583
04001-167
451416
482028-01
92785
Bolt, Hex Head 3/8-16 x 1”
Flatwasher, 3/8-.391 x .938 x .105
Nut, Hex Serrated Flange 5/16-18
Bolt, Hex Head 3/8-16 x 2.0”
Nut, Elastic Stop 3/8-16
Spacer Bushing
Seat Plate Weldment w/Decal
Fender Weldment, RH
Bolt, Carriage 1/4-20 x 6”
Battery (not avail. through Scag)
Cover, Battery
Bolt, Carriage 5/16-18 x 3/4”
Plate, Battery Box
Rubber Pad
Wing Nut, 1/4-20 x 3/4”
Nut, Elastic Stop 3/8-16
Battery Box Mount
Bolt, Hex Head 3/8-16 x 1”
Nut, Hex Serrated Flange 3/8-16
Screw, Hex Serrated Flange 3/8-16 x 1”
Fender Weldment, LH
Nut, Hex Elastic Stop 3/8-16
Nut, Elastic Stop 7/16-14
Lockwasher, 7/16”
Bolt, Hex Head 7/16-14 x 1-1/4”
Extention Weldment, Caster (Use with 61” Deck)
Extention Weldment, Caster (Use with 72” Deck)
Cap, Grease
Nut, Hex Elastic Stop 1.0”-14
Bearing W/Race
Seal, 2.00” OD. x 1.625” Bore
Nut, Hex Elastic Stop 1/2-13
Spacer, Caster Wheel
Sleeve, Caster Wheel (61V)
Bolt, Hex Head 1/2-13 x 9-1/2” (61V)
Yoke Weldment, Caster (61V )
Plug, 1/4-28 THD Form
Wheel Assembly, (Inc. 44, 45, & 46)
Seal
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
482622
482621
48114-10
Bearing w/ Race
Grease Fitting
47
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Section 8
STT ROLL-OvER PROTECTION SYSTEM - with SUSPENSION SEAT
Ref.
No.
Part No.
Description
1
2
3
4
5
9292
Suspension Seat Assembly w/seat belt
Bolt, Hex Head 7/16-20 x 1”
Flatwasher, 7/16-.500 x 1.25 x .083
Retractable Seat Belt
04001-178
04040-11
483594
482950
482945
482946
482940
482943
482948
482942
482952
482944
482948
482941
Armrest Only
Armrest Assembly Kit, LH
Armrest Assembly Kit, RH
Back Cushion Kit
Lumbar Kit
Knob Kit
6
7
8
9
10
Shock Absorber Kit
Seat Adjustment, Track Set
Weight Adjustment Kit
Knob Kit
11
Seat Cushion Kit
Seat Drain Kit (Included with Seat Cushion)
STT, ROPS Accessory (incl. items 13 thru 22)
Hair Pin, Cotter
Nut, Center Lock 1/2-13
Bracket, Stop
Bolt, Hex Head 1/2-13 x 3-1/2”
Pin
Clamp
Thumb Screw, 5/16-18 NC x 3/4”
Bolt, Hex Head 1/2-13 x 4-1/2”
Flatwasher, 1/2-.562 x 1.375 x .109
Nut, Center Lock 1/2-13
Nut, Serrated Flange 5/16-18
Bracket, Seat Hold Down with Decal
Bolt, Hex Head 5/16-18 x 1”
Nut, Elastic Stop 3/8-16
Seat Plate Weldment w/Decal
Flatwasher, 3/8-.391 x .938 x .105
Bolt, Hex Head 3/8-16 x 2”
Spacer Bushing
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
9514
04062-06
04021-19
424407
04001-145
483262
483265
481625-03
04001-82
04040-13
04021-19
04019-03
461968
04001-09
04021-09
462147
04041-07
04001-45
43606
43477
481389
Pin Retainer, Spring
Spring, Seat
Roll Pin, Spring 5/32 x 3/4”
04060-01
49
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R
Section 8
DECK DRIvE COMPONENTS
2
3
3
3
1
3
3
4
1
27
1
26
23
28
25
24
A
5
11
19
22
21
15
1
20
29
A
27
26
19
A
30
A
B
28
19
17
16
34
18
31
13
23
45
12
33
34
50
10
47
49
32
46
35
11
18
A
48
51
36
44
14
1
43
37
B
10
53
7
54
9
52
A
10
C
55
29
8
56
D
6
10
7
42
41
40
10
36
31
39
78
29
75
10
57
11
38
76
58
20
19
18
61
60
62
59
77
63
C
D
33
68
74
66
65
73
72
67
64
69
71
70
Frame
69
STT CAT 2008 DDC
50
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R
Section 8
DECK DRIvE COMPONENTS
Ref.
Ref.
Part No.
No.
Description
Part No.
No.
Description
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
482433
04001-11
04040-04
423465
04001-10
04102-03
04041-28
04001-109
04030-02
481536
483430
04001-171
461609
43632
04001-170
04063-06
04001-176
461665
481024
43534
48114-04
48677
43644
481022
43296
43312
481025
43297
481035
452005
Rod Assembly, Clutch Anti-Rotation
Bolt, Hex Head 5/16-18 x 1-1/2”
Flatwasher, 5/16”
Bracket, Anchor, Anti-Rotation
Bolt, Hex Head 5/16-18 x 1-1/4”
Bolt, Hex Head 7/16-20 x 2-1/4”
Flatwasher, 7/16-.469 x 1.75 x .25
Bolt, Hex Head 1/4-20 x 1-3/8”
Lockwasher, 1/4” Spring
Tapered Hub, 1” Bore
1
2
3
4
5
6
04019-02
423925
04003-07
04003-02
481531
Nut, Serrated Flange 1/4-20
Belt Guard, Rear
Bolt, Carriage 1/4-20 x 1/2”
Bolt, Carriage 1/4-20 x 3/4”
Hinge, Belt Guard
43772
482334
Stub Shaft, (Cat)
Stub Shaft, (Kubota)
7
8
9
04030-05
04002-26
04063-23
04019-04
04021-09
04001-135
43286
Lockwasher, 7/16” Spring
Bolt, Hex Head M10 x 1.5 x 35
Key, 1/4 x 1/4 x 3-1/4”
Nut, Serrated Flange 3/8-16
Nut, Elastic Stop 3/8-16
Bolt, Hex Head 3/8-16 x 1-3/4” Grd 8
Spacer
Spring, PTO
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Bolt, Hex Head 3/8-16 x 4-1/2” Grd 8
Idler Arm Weldment, PTO Drive
Pivot, Idler PTO
Bolt, Hex Head 3/8-16 x 2-1/2” Grd 8
Key, 1/4 x 1/4 x 1-1/2”
Bolt, Hex Head 5/16-18 x 1-3/4” Grd 8
Spindle Assembly, Deck Drive
Seal, 2.0 OD x 1.5 Bore
Shaft, Deck Drive
Grease Fitting, 1/4-28
Relief Fitting
Spindle Housing
Roller Bearing Tapered
Spacer, Inside
481309
Latch, Hood
Screw, #10-32 x .56
04011-11
04019-06
04001-185
04001-21
04043-04
48224
43631
461608
482744
482745
Nut, Serrated Flange 1/2-13
Bolt, Hex Head 1/2-13 x 2” Grd 8
Bolt, Hex Head 3/8-16 x 1-3/4”
Washer, 3/8” Hardened
Ball Bearing
Spacer, Idler Bearing
Idler Arm Weldment, Pump Drive
Pulley, 5.75” O.D. - CAT
Pulley, 6.35" O.D. - Kubota
Belt, Pump Drive - CAT
Belt, Pump Drive - Kubota
Pulley, 6.35 Dia. - 1.125 Bore - CAT
Pulley, 5.98 Dia. - 1.125 Bore - Kubota
Tapered Hub, 17mm Bore
Bolt, Hex Head 1/4-20 x 1” Grd 8
Key, 5 x 5 x 35 mm
Spacer, Outside
24
25
483735
483678
483732
483855
Seal, 2.0 OD x 1.625 Bore
Spindle Bushing, Bottom
Nut, 1.06-18 Thread
Pump Mounting Plate Weldment
(Cat Engine)
Driveshaft (Cat Engine)
Key, 1/4 x 1/4 x 1”
Set Screw, 3/8-16 x 3/4” Torx Socket
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
481884
04001-172
04063-27
04021-05
483214
04001-136
483088
04001-19
04041-07
424764
04019-03
481284
424691
04003-12
481398
481460
48181
76
77
78
482438
04063-20
04012-08
Nut, Center Lock 3/8-16
Pulley, Idler 4” Dia.
Bolt, Hex Head 3/8-16 x 1-1/2” Grd 8
Spring, Transmission Idler
Bolt, Hex Head 3/8-16 x 1”
Flatwasher, 3/8-.391 x .938 x .105
Bracket
Nut, Serrated Flange 5/16-18
Bumper, Rubber
Cover, Rear
Bolt, Carriage 5/16-18 x 3/4”
Pulley, 6.35 Tapered Bore
Belt, Deck Drive
Pulley, Idler 5” Dia.
462011
04021-10
43587
Clutch, Ogura GT 3.5 - 1.125 Bore
Nut, Hex Elastic Stop 5/16-18
Spacer
51
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Section 8
ENGINE & ATTACHING PARTS - CAT DIESEL
6
7
8
9
10
11
12
1
5
3
14
13
4
13
17
21
17
3
15
2
18
19
20
17
17
13
22
7
20
1
TO
23
26
RADIATOR
CAP
27
50
28
3
A
25
27
38
28
B
34
35
3
24
D
33
31
36
66
25
64
D
41
40
65
63
37 39
C
32
30
29
4
C
43
62
61
42
7
7
44
7
7
45
18
46
45
60
18
47
48
18
57
54
49
A
B
60
59
57
54
58
18
53
54
48
48
56
50
18
51
52
18
18
55
STT CAT 2008 EAP
18
52
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R
Section 8
ENGINE & ATTACHING PARTS - CAT DIESEL
Ref.
Ref.
No.
Part No.
No.
Description
Part No.
Description
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
424907
424906
483351
424452
04001-19
04040-15
04021-22
04030-04
04021-09
424449
Mounting Bracket Weldment RH
Mounting Bracket Weldment LH
Mount, Engine Isolation
Plate, Rear Engine Mount
Bolt, Hex Head 3/8-16 x 1”
Flatwasher, 5/16” (.375 x .875 x .083)
Nut, Elastic Stop 5/16-18 Grade 8
Lockwasher, 3/8” Spring
Nut, Elastic Stop 3/8-16
Plate, Engine Mount LH
1
2
3
4
5
6
** Hose, Coolant Resrvoir Bottle
** Coolant Reservoir Bottle
Flatwasher, SAE 5/16-.344 x .688 x .065
Bolt, Hex Head Serr. Flng 5/16-18 x 3/4”
** Cap, Coolant Reservoir Bottle
Hood Assembly w/Decals (incl. 8, 9, 10,
11, 12, and 13)
Nut, Serrated Flange 5/16-18
Flatwasher, 3/8-.406 x .812 x .065
Lock, Hood Latch
Spring, Hood Latch
Latch, Hood
Bolt, Shoulder 5/16-18 x 1/2”
Bolt, Hex Head 3/8-16 x 1-3/4”
Flatwasher, 3/8-.391 x .938 x .105
Spacer, Hood
04040-04
04017-16
462116
7
8
9
04019-03
04040-05
424634
483507
424633
04009-07
04001-21
04041-07
43740
424448
Plate, Engine Mount RH
10
11
12
13
14
15
16
17
18
19
20
21
22
04041-11
04002-24
04030-06
04001-19
424497
04003-12
483485
483635
Flatwasher, 3/8” (.406 x 1.50 x 7 ga)
Bolt, Hex Head M12-1.25 X 25mm
Lockwasher, 1/2” Spring
Bolt, Hex Head 3/8-16 x 1”
Bracket, Air Cleaner Mount
Bolt, Carriage 5/16-18 x 3/4”
Air Filter Assembly (Enginaire p/n 68665)
Rain Cap (Enginaire p/n 68381)
Air Filter, Inner (Enginaire p/n 68300)
Air Filter, Outer (Enginaire p/n 68340)
483471
Disc, Anti Friction
04019-04
04021-09
04041-11
04110-01
424910
Nut, Serrated Flange 3/8-16
Nut, Elastic Stop 3/8-16
Flatwasher, 3/8-.406 x 1.50 x 7 Gauge
U-Nut, 1/4”-20
Muffler Guard
Bolt, Hex Head Serrated Flange, 1/4-20
x 3/4”
483636
483637
04017-05
23
24
04001-176
452005
Bolt, Hex Head 5/16-18 x 1-3/4” Grd 8
Pump Mounting Plate Weldment
(Cat Engine)
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
48136-09
483713
04002-12
04030-03
483433
Clamp, 2-1/4” Max. Dia.
Hose, Air Intake
Bolt, Hex Head M8-1.25 x 20
Lockwasher, 5/16” Spring
Elbow, 45 Degree
481811
Oil Pressure Sender
04002-21
04030-02
483746
04011-06
424580
Bolt, Hex Head M6-1.0 x 16
Lockwasher, 1/4” Spring
Throttle Cable
Screw, Self Tapping
Clamp
Mounting Bracket, Throttle Cable
** Gasket, Muffler
Muffler, Cat Diesel
424921
483841
43772
04030-05
04002-26
483360
Stub Shaft, (Cat)
Lockwasher, 7/16” Spring
Bolt, Hex Head M10 x 1.5 x 35
Temperature Sensor, Engine Coolant
** Engine, Cat Diesel 28HP
(Available only through Cat Dealers)
Mount, Radiator
44
45
424924
483756
Mount, Radiator Isolation
** Available through the individual engine manufacturer.
53
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Section 8
RADIATOR & ATTACHING PARTS - CAT DIESEL
19
16
16
18
14
17
15
16
13
12
16
14
15
13
9
20
A
8
10
8
9
8
10
21
10
11
B
B
9
8
9
7
10
C
8
C
10
6
B
B
10
5
9
8
9
7
22
4
6
14
C
C
13
3
23
14
24
13
4
3
25
2
A
24
26
2
28
27
28
1
29
30
17
25
31
14
17
31
14
32
STT CAT 2008 RAP
54
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R
Section 8
RADIATOR & ATTACHING PARTS - CAT DIESEL
Ref.
No.
Part No.
Description
1
2
3
4
452006
Debris Screen Weldment
Bolt, Hex Head 3/8-16 x 4-1/2”
Bolt, Socket Head 3/8-16 x 4-1/2”
Foam, Seal, 1/2” x 1/4” x 14-1/2”
** Radiator Cap
04001-23
04015-19
483745
5
6
481309
Latch, Hood
7
8
9
04011-11
04001-06
04030-02
04040-14
424944
Screw, #10-32 x .56
Bolt, Hex Head 1/4-20 x .63”
Lockwasher, 1/4” Spring
Flatwasher, 1/4” (.312 x .750 x .065)
Heatshield
Bracket, Radiator Mount (RH)
Flatwasher, 3/8” (.391 x .938 x .105)
Nut, Elastic Stop 3/8-16
Nut, 5/16-18
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
424945
04041-07
04021-09
04020-03
04030-03
483756
424947
04002-03
424946
424949
452008
483765
48136-14
483764
Lockwasher, 5/16”
Mount, Radiator Isolation
Bracket, Radiator Mount to Engine
Bolt, Hex Head M8 x 1.25 x 25
Bracket, Radiator Mount (LH)
Guard, Fan
Shroud Weldment, Radiator
Hose, Upper Radiator
Clamp, Hose, 1-3/4”
Hose, Lower Radiator
Radiator
483750
424933
483755
04019-03
424924
Support, Debris Screen
Mount, Radiator Isolation
Nut, Hex Serrated Flange 5/16-18
Mount, Radiator
Flatwasher, 3/8” (.406 x 1.50 x 7 ga)
Guard, Belt
04041-11
452001
483767
483809
Alternator Belt (not shown)
Alternator (not shown)
** Available through the individual engine manufacturer.
55
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Section 8
ENGINE & ATTACHING PARTS - KUBOTA DIESEL
1
3
51
50
49
48
46
60
55
54
47
53
52
4
61
5
3
TO
62
RADIATOR
CAP
34
44
8
7
A
64
32
2
45
36
42
35
43
65
63
11
9
56
26
35
10
42
41
27
59
25
57
31
21
22
66
13
28
30
58
14
27
12
59
29
15
NEGATIVE
BATTERY
CABLE
15
15
40
26
25
23
24
22
15
16
6
21
23
40
33
22
21
40
20
17
17
17
18
A
39
15
17
15
38
37
15
40
39
19
15
STT KBD 2008 EAP
56
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Section 8
ENGINE & ATTACHING PARTS - KUBOTA DIESEL
Ref.
Ref.
No.
Part No.
No.
Description
Part No.
Description
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
424633
04009-07
483507
Latch, Hood
Bolt, Shoulder 5/16-18 x 1/2”
Spring, Hood Latch
Lock, Hood Latch
Flatwasher, 3/8 (.391 x .938 x .105”)
Nut, Center Lock 5/16-18
1
2
3
4
5
6
7
8
462008
483356
**
**
**
Hood Assembly (Incl. 46, 47, 48,49, 50, 51)
Throttle Cable
Hose, Over Spill Bottle
424634
Over Spill Bottle
04041-07
04021-04
04001-21
04041-07
04041-11
04021-09
04017-16
04003-12
04019-03
483513
04017-16
04019-03
04001-176
04040-04
483637
Mounting Bracket, Over Spill Bottle
Bolt, Metric Hex Hd. M10-1.25 x 25mm
Clamp
Screw, Self Tapping
Bracket, Control Mount
Muffler, Kubota
Gasket, Muffler
** Engine, Kubota (not avail. through Scag)
Oil Pressure Sender
Elbow, 45 Deg.
Nut, Serr. Flng. 5/16-18
Mounting Bracket Weldment LH
ISO Mount
Plate, Rear Engine Mount
Plate, Engine Mount LH
Plate, Engine Mount RH
Nut, Metric Hex M8-1.25mm
Lockwasher, 5/16” Spring
Rubber ISO Mount, Radiator
Mounting Bracket Weldment RH
Capscrew, Metric M6-1.0 x 16mm
Lockwasher, 1/4” Spring
Foam, Radiator Screen
Debris Screen Track LH
Debris Screen Assembly (Incl. 59)
Debris Screen Track RH
Bracket, Air Cleaner Mount
Rain Cap (Enginaire p/n 68381)
Lockwasher, 7/16” Spring
Air Filter Assembly (Enginaire p/n 68665)
Clamp, 2-1/4” Max. Dia.
04002-10
424580
04011-06
424485
483811
483387
483335
481811
483433
04019-04
424450
483351
424452
424448
424449
04025-02
04030-03
**
424451
04106-01
04030-02
483512
424624
462035
424623
424497
483635
04030-05
483485
48136-09
483343
04021-22
04030-03
04021-09
04001-19
04002-01
04030-03
04002-03
451861
04002-12
Bolt, Hex Hd. 3/8-16 x 1-3/4”
Flatwasher, 3/8 (.391 x .938 x .105”)
Flatwasher, 3/8 (.406 x 1.50 x 7 Ga.)
Nut, Elastic Stop 3/8-16
Bolt, Hex Hd. Serr. Flng. 5/16-18 x 3/4”
Bolt, Carriage 5/16-18 x 3/4”
Nut, Serr. Flng. 5/16-18
Foam, Radiator Screen Upper
Bolt, Hex Hd. Serr. Flng. 5/16-18 x 3/4”
Nut, Serr. Flng. 5/16-18
Bolt, Hex Hd. 5/16-18 x 1-3/4” Grd. 8
Flatwasher, SAE 5/16 (.344 x .688 x .065”)
Air Filter, Outer (Enginaire p/n 68300)
Air Filter, Inner (Enginaire p/n 68340)
Spacer, Radiator
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
483636
43714
Hose, Air Intake
Nut, Elastic Stop 5/16-18 Grd. 8
Lockwasher, 5/16” Spring
Nut, Elastic Stop 3/8-16
Bolt, Hex Hd. 3/8-16 x 1”
Bolt, Metric Hex Hd. M8-1.25 x 30mm
Lockwasher, 5/16” Spring
Bolt, Metric Hex Hd. M8-1.25 x 25mm
Pump Mounting Plate Weldment (Kubota)
Bolt, Metric Hex Hd. M8-1.25 x 20mm
** Available through the individual engine manufacturer.
57
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Section 8
BRAKE AND STEERING COMPONENTS
1
2
86
TO RH PUMP
35
6
37
34
TO LH PUMP
36
33
80
4
3
35
31
37
36
33
27
A
5
81
86
30
28
66
29
6
75
11
C
74
56
64
25
34
8
77
17
10
12
20
13
61
38
14
9
7
13
82
A
24
39
59
38
59
63
14
62
9
24
16
60
22
68
B
76
26
78
65
19
67
9
51
11
52
72
11
84
18
54
21
82
22
C
57
73
40
34
55
85
50
58
21
36
85
82
48
49
23
45
79
53
34
41
B
71
15
43
44
83
47
69
46
32
70
42
STT DB&SC
58
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R
Section 8
BRAKE AND STEERING COMPONENTS
Ref.
Ref.
No.
Part No.
No.
Description
Part No.
Description
46
47
48
49
50
51
52
53
54
55
48343-04
04064-02
04062-01
04004-49
48544
Clevis, Traction Control
Pin, Clevis
Hair Pin Cotter
Rod, Parking Brake
Rod End, LH Thread
1
2
482340
461914
461923
04001-09
04030-03
483250
483238
451483
Grip, Handle Bar
Handle Bar, LH (Includes item 1)
Handle Bar, RH (Includes item 1)
Bolt, Hex Head 5/16-18 x 1”
Lockwasher, 5/16”
Rubber Spacer
Bar, Control Lever
3
4
5
6
7
482061
Bushing, Self Align
04001-08
04001-192
481637
Bolt, Hex Head 5/16-18 x 3/4”
Bolt, Hex Hd 3/8-24 x 5-1/2”
Switch, Parking Brake
Screw, Hex Slotted Washer Head #10 32
x 3/4”
Bolt, Hex Head 3/8-16 x 1-1/4”
Bellcrank, Brake Actuator
Spring
Bolt, Hex Hd 1/2-13 x 2-3/4” (upper)
Bolt, Hex Hd 1/2-13 x 2-1/2” (lower)
Locknut, Hex 1/2-13 Center Lock
Bolt, Shoulder 1/2 x 3/8-16 x 2-3/4”
Wheel Motor, Hydro-Gear 18E
Bolt, Hex Head, 5/16-18 x 1.75, Zinc
Brake Caliper
Mounting Bracket, Brake
Spacer
Wheel Hub/Disk Brake Assembly
Key, Woodruff 5/16 x 1”
Wheel Assembly 24 x 12-12 Turf Master
Rim W/Valve Stem
Tire, 24 x 12-12 Turf Master
Lug Nut, 1/2-20
Nut, Hex Castle
Control Lever Weldment, LH
Control Lever Weldment, RH
Bolt, Hex Head 5/16-18 x 2”
Nut, Hex Elastic Stop 5/16-18
Bolt, Hex Head 3/8-16 x 2”
Nut, Hex Elastic Stop 3/8-16
Mount, Control Linkage
Ball Bearings, Neutral Return
Spacer
Pin, Rue Cotter 3/8 Dia.
Bolt, Hex Head, 5/16-18 x 2.75 Zinc
Nut, Hex Elastic Stop 5/8-11
Bracket, Control Lever LH
Bracket, Control Lever RH
Bolt, Carriage 5/16-18 x 1”
Spacer, Bearing
Bolt, Carriage 5/16-18 x 3/4”
Nut, Hex Serrated Flange 5/16-18
Ring, Retaining 5/8” External “E”
Spacer
Bracket, Neutral Return
Bolt, Carriage 1/4-20 x 3/4”
Flatwasher, 1/4” (.312 x .750 x .065)
Nut, Hex Elastic Stop 1/4-20
Pin, Retaining Spring
451484
04010-12
8
9
04001-17
04021-10
04001-45
04021-09
423488
48224
43607
04069-01
04001-13
04021-13
461601
461602
04003-04
43600
04003-12
04019-03
04050-01
43602
56
57
58
59
04001-32
45953
48807
04001-190
04001-52
04021-19
04009-10
483677
04001-12
483701
424894
43063
462104
04063-25
481850
481851
481852
04028-02
48680
422373
04001-20
423491
04017-16
04001-79
04001-32
481638
04001-168
04003-05
483269
10
11
12
13
14
15
16
17
18
60
61
62
63
64
65
66
67
68
69
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
45918
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
04003-02
04040-14
04021-08
43477
Threaded Plate
Bolt, Hex Head 3/8-16 x 1-1/2”
Actuator, Switch
481389
Spring
Bolt, Hex Serrtd Flng 5/16-18 x 3/4”
Bolt, Hex Head 5/8-11 x 4-1/2”
Bolt, Hex Head 3/8-16 x 1-1/4”
Switch, Handle Neutral
Bolt, Hex Head 3/8-16 x 1-1/4” Grd 8
Bolt, Carriage 3/8-16 x 1-1/2”
Knob
Nut, Center Lock 3/8-16
Nut, Serrated Flange 3/8-16
Flatwasher, 3/8-.391 x .938 x .105
Flatwasher, 3/8-.406 x .812 x .065
Bolt, Hex Head, 3/8-16 x 1-3/4”
04060-01
04061-06
482586
04020-25
483680
04020-26
482585
04021-05
482794
482330
48114-04
461082
481548
04001-22
43773
Roll Pin, Spring 5/32 x 3/4”
Pin, Cotter 9/16 x 1-1/2”
Rod End, Male 3/8-24 RH Thread
Nut, 3/8-24 RH Thread
Tube, Control Link
Nut, Hex 3/8-24 LH Thread
Rod End, Male 3/8-24 LH Thread
Locknut, 5/16-18, Elastic Stop
Gas Damper
Rod End, 3/8-24 RH Female
Grease Fitting
Lever, Parking Brake (Inc. item 43)
Grip, Parking Brake
04021-05
04019-04
04041-07
04040-05
04001-21
Bolt, Hex Head 3/8-16 x 2-3/4”
Swivel Joint
59
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R
Section 8
FUEL AND HYDRAULIC SYSTEM - CAT DIESEL
9
25
26
6
8
5
7
4
4
27
28
3
24
B
6
5
8
7
D
4
4
3
3
23
30
2
A
22
1
29
14
C
3
15
31
3
16
13
12
10
4
3
27
F
1
TO
INJECTION
PUMP
32
17
E
11
33
18
38
34
37
RIGHT
36
38
47
35
ENGINE
FRAME
RAIL
23
37
RIGHT
FRAME
RAIL
H
G
B
I
A
3
39
19
20
21
23
G
4
35
4
4
5
27
34
45
46
40
64
38
7
44
43
63
I
42
41
FROM
FUEL
RAIL
H
38
48
27
19
63
19
20
21
49
48
62
52
50
38
51
53
z
E
3
54
D
4
61
3
55
57
56
41
3
60
z
4
F
41
59
41
C
58
3
2008 STT-CAT F&HS.eps
60
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R
Section 8
FUEL AND HYDRAULIC SYSTEM - CAT DIESEL
Ref.
Ref.
No.
Part No.
No.
Description
Part No.
Description
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
04019-03
48758
Nut, Serrated Flange 5/16-18
Oil Filter
Oil Filter Base
Bolt, Hex Head 5/16-18 x1.0” Zinc
Tee, 3/4 O-Ring x JIC x 1/2” Hose
Cap
Fuel Pump, Cat
Clamp, .69 Dia.
*** Hose, 1/4” Fuel Line
Hose Fitting
Bushing
Valve, Fuel Shutoff
Fitting, Hose with Screen
Bushing
Fuel Tank Assembly (incl. items 50, 51,
53, 54)
Support Bracket, Fuel Tank
Bolt, Carraige 1/4-20 x 3/4”
Mounting Bracket - LH, Oil Cooler
Nut, Serrated Flange 1/4-20
Mounting Bracket - RH, Oil Cooler
Oil Cooler
Bolt, Carraige 5/16-18 x 3/4”
Bolt, Hex Head 5/16-18 x 3/4”
Cap, Fuel Tank W/Gauge
1
2
3
4
5
6
7
8
48572-06
483100
48811
48136-13
482266-01
482266-02
04021-09
04043-04
Union, 3/4”-16 JIC x O-Ring
Pump, Right Hand, BDP 16A
*** Hose, 3/8” ID Pushlock
Hose Clamp, 0.69 dia.
Elbow, 90 Deg - 9/16 O-Ring x 3/8” Hose
Elbow, 90 Deg - 3/4 O-Ring x 3/8” Hose
Nut, Hex Elastic Stop 3/8-16
Flatwasher, 3/8” (.391 x .938 x .105)
Grade 8
Bolt, Hex Head 3/8-16 x 1.5”
Pump, Left Hand, BDP-16A
Lockwasher, 1/4” Spring
Bolt, Hex Head, 1/4-20 x 1-1/2”
Roll Pin, Spring 3/16 x 3/4”
Nut, Center Lock 3/8-16
Clamp Plate, Pump Control
Bolt, Hex Head, 3/8-16 x 1-3/4”
Block, Pump Control
Hose Assembly, Pump
Elbow, 90 Degree, 7/8-14 THD
O-Ring
Bushing, 7/8-14 JIC x 3/4-16 O-Ring
Strap, Hydraulic Tank
Bolt, Hex Head 1/4-20 x 3/4”
Oil Reservoir Assembly (includes 26, 30,
31, 32, 33)
482417
04001-09
482477
48571-02
483768
48136-13
48058
481778
482571
481308
483749
482571
462126
9
04001-20
483101
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
04030-02
04001-04
04060-09
04021-05
422694
04001-21
481793
481611
48350-01
48603-02
48938-02
423513
04001-01
461451
56
57
58
59
60
61
62
63
64
424914
04003-07
424884
04019-02
424885
482505
04003-12
04017-16
482498
25
26
27
28
29
30
31
32
33
34
35
481164
481507
04021-08
04010-10
424942
482571
482572
482571
482574
48136-05
48351
Cap, Hydraulic Tank
Insert, Filler Neck
Nut, Hex Elastic Stop 1/4-20
Screw, Phillips Head, 1/4-20
Support Bracket, Hydraulic Tank
Bushing, .56 Dia. Viton
Elbow, 90 Degree .38 Hose
Bushing, .78 Dia. Viton
Elbow, 90 Degree
Clamp, Hose
*** Hose Assembly, 1/2” ID
(Oil Reservoir to Filter Base)
Bolt, Carraige 3/8-16 x 1”
Clamp, Fuel Hose 5/16” ID
*** Fuel Hose, 5/16” ID. Non-Perm
** Fuel Filter
36
37
38
39
40
04003-22
48059-04
* 483620
04041-07
Flatwasher, 3/8” (.391 x .938 x .105)
* High Pressure Fuel Line. MUST only be replaced with the part number listed.
** Available through the individual engine manufacturer.
*** Order by the inch.
61
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R
Section 8
FUEL AND HYDRAULIC SYSTEM - KUBOTA DIESEL
3
1
57
56
23
24
7
28
28
7
22
30
D
4
B
57
56
28
D
4
7
73
28
41
7
28
54
47
4
4
43 (2)
51
A
52
27
49
C
22
53
40
F
28
46
43 (2)
E
48
TO
INJECTION
PUMP
14
72
44 45 50
39
33
42
J
15
RIGHT
FRAME
RAIL
G
75
J
H
67
68
I
B
A
4
71
74
76
69
34
25
35
2
G
4
28
70
6
62
33
55
21
18
8
20
19
31
19
I
11
H
22
13
34
34
25
35
FROM
FUEL
RAIL
16
17
38
64
61
Z
65
66
E
2
D
32
5
58
59
36
37
Z
F
2
C
2007 STT-BSD F&HS.eps
62
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R
Section 8
FUEL AND HYDRAULIC SYSTEM - KUBOTA DIESEL
Ref.
Ref.
No.
Part No.
No.
Description
Part No.
Description
46
47
48
49
50
51
52
53
54
55
56
57
58
04060-09
04017-05
483620
422694
481793
483101
04021-09
04001-32
483100
482498
04021-09
04043-04
424483
424484
04001-08
482505
48136-13
04019-03
**
Roll Pin, Spring 3/16 x 3/4”
Bolt, Hex Serr. Flng., 1/4-20 x 3/4”
*** Fuel Hose, 5/16” ID. Non-Perm.
Clamp Plate, Pump Control
Block, Pump Control
Pump, Left Hand, BDP-16A
Nut, Hex, Elastic Stop 3/8-16
Bolt, Hex Hd., 3/8-16 x 1-1/4
Pump, Right Hand, BDP 16A
Cap, Fuel Tank w/Gauge
Nut, Hex Elastic Stop 3/8-16
Flatwasher, 3/8” (.391 x .938 x .105”) Grd. 8
Mounting Bracket - LH, Oil Cooler
Mounting Bracket - RH, Oil Cooler
Bolt, Hex Hd. 5/16-18 x 3/4”
Cooler, Oil
1
2
3
4
5
6
7
8
04110-01
48136-13
04001-03
48811
482505
481301-03
482266-01
482417
482606
48136-05
**
U-Nut 1/4-20
Hose Clamp, 0.69” Dia.
Bolt, Hex Hd. 1/4-20 x 2.0”
*** Hose, 3/8” ID Pushlock
Oil Cooler
Elbow, 90 Deg. - 1/4” NPT x 3/8” Hose
Elbow, 90 Deg. - 9/16” O-ring x 3/8” Hose
Oil Filter Base
Hose Assy, 1/2” ID (Tank to Filter Base)
Clamp, .87” max Dia.
Fuel Pre-Filter, Kubota
*** Fuel Hose, 5/16” ID. Non-Perm.
Valve, Shutoff
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
483620
48059-01
483620
483749
48309
04001-09
04019-03
48758
482477
04021-08
481164
481507
48603-02
461451
482572
482571
48136-13
48811
Clamp, Fuel Hose
*** Fuel Hose, 5/16” ID. Non-Perm.
Hose Fitting
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
Clamp, 0.69” Dia.
Nut, Serr. Flng. 5/16-18
Adapter, 1/2” - 5/16” (p/n 59071-2141)
*** Hose, 1/4” Fuel Line
Fitting, Hose
Bushing
Bolt, Hex Hd. 5/16-18 x 1.0” Zinc
Nut, Serr. Flng. 5/16-18
Oil Filter
Tee, 3/4” O-ring x JIC x 1/2” Hose
Nut, Hex Elastic Stop 1/4-20
Cap, Hydraulic Tank
48058
482703
48309
Bushing
Fuel Pump, Kubota
**
04017-16
04001-19
04021-09
424487
04017-16
04001-01
**
Bolt, Hex Hd. 5/16-18 x 3/4”
Bolt, Hex Hd. 3/8-16 x 1”
Nut, Elastic Stop 3/8-16
Bracket, Fuel Filter Mounting
Bolt, Hex Hd. Serr. Flng. 5/16-18 x 3/4”
Bolt, Hex Hd. 1/4-20 x 3/4”
Fuel Filter
Insert, Filler Neck
O-Ring
Oil Reservoir Assembly (Incl. 24, 27, 39)
Elbow, 90 Deg. 0.38” Hose
Bushing, 0.56” Dia. Viton
Hose Clamp, 0.69” dia.
*** Hose, 3/8” ID, Pushlock
Screw, Phillips Head, 1/4-20
Cap
28
29
30
31
32
04017-05
04019-02
Bolt, Hex Hd. 1/4-20 x 3/4”
Nut, Serr. Flng. 1/4-20
04010-10
48571-02
462126
Fuel Tank Assembly (Incl. items 16, 17, 65,
66)
33
34
35
36
37
38
39
48136-05
48350-05
48938-02
424914
04019-03
04003-02
482574
Clamp, Hose
Elbow, 90 Deg., 5/8 x 1/2
Bushing, 7/8”-14 JIC x 3/4”-16 O-Ring
Support Bracket, Fuel Tank
Nut, 5/16-18 Serr. Flng.
Bolt, Carriage 1/4-20 x 3/4”
Elbow, 90 Deg.
482573
423513
Bushing, 0.78” Dia. Viton
Strap, Hydraulic Tank
40
41
42
43
44
45
424524
483805
48572-06
04001-59
04030-02
Support Bracket, Hydraulic Tank
Hose Assembly, Pump
Union, 5/8 x 1/2
Bolt, Hex Hd., 1/4-20 x 1-14”
Lockwasher, 1/4” Spring
** Available through the individual engine manufacturer.
*** Order by the inch.
63
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R
Section 8
BDP-16A HYDRAULIC PUMP ASSEMBLY with Cooling Fan
Ref.
No.
Part No.
HG70740
Description
1
2
Overhaul Seal Kit
Valve Plate
HG51455
3
4
5
6
7
8
9
HG70735
HG51462
HG51436
Cylinder Block Kit - 16cc
Thrust Ball Bearing Assembly
Variable Swashplate
Slot Guide
Trunnion Arm
Block Spring
Block Thrust Washer
Shaft Ball Bearing
Spacer
Retaining Ring
Seal
HG2000015
HG2000014
HG2000025
HG2000024
HG2000032
HG2000023
HG2000038
HG51092
HG70578
HG70738
HG70739
HG50641
HG51437
HG9005110-7500
HG70743
HG70742
HG9005200-7500
HG70736
HG2513030
HG9004100-1430
HG50406
HG50173
HG70924
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Kit, Pump Shaft (keyed thru taper)
Housing Kit
Trunnion Seal Kit
Pin
O-Ring
Straight Thread Plug
Shock Valve Kit (.031 Orifice)
Shock Valve Kit (.024 Orifice)
Straight Thread Plug
End Cap Kit
Bypass Valve Kit
O-Ring
Gerotor Assembly (.19 cu.in./rev.)
Socket Head Cap Screw (M8 x 1.25-25mm)
Charge Pump Kit (.19 STD. Splined)
Hex Screw, Flanged Head (M10 x 1.50-65mm)
Charge Relief Kit
Fan Kit (incl. items 32, 34, 35, 36)
Hub
Bracket, Shroud
Fan
Washer
Nut
HG51457
HG70402
HG71287
HG51348
HG52016
HG52014
HG52256
HG44809
HG52059
Shroud
65
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R
Section 8
ELECTRICAL SYSTEM - CAT DIESEL
TO
FUEL
5
SHUTOFF
SOLENOID
4
TO
3
GLOW
6
PLUGS
2
7
8
1
A
TO
FUEL
PUMP
11
A
9
19
20
10
17
A
12
20
28
32
31
30
29
18
33
12
27
34
31
30
29
12
17
21
26
14
35
13
22
16
23
24
31
25
39
40
41
29
36
15
37
30
31
38
42
39
40
17
30
43
29
31
44
11
46
45
46
47
46
48
46
30
46
45
31
45
46
STT2008 ESCAT-DIESEL
66
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R
Section 8
ELECTRICAL SYSTEM - CAT DIESEL
Ref.
No.
Part No.
Description
1
2
3
4
5
6
7
8
** Fuel Pump
Oil Pressure Sender
** Glow Plugs
** Fuel Shutoff Solenoid
Hourmeter
Clutch, Ogura GT 3.5 - 1.125 Bore
** Starting Motor
Alternator
481811
483537
462011
483809
483767
481670
482253
Alternator Belt (not shown)
Sending Unit, Water Temp.
Diode
9
10
11
12
48298
Fuse, 20 AMP
Clamp, Cable 1/2” ID.
Clamp, Cable 3/4” ID.
Clamp, Double Cable 5/8” ID.
Cable, Battery - Red
48030-09
48030-10
48030-11
481176-10
481176-11
04020-02
04001-44
13
14
15
16
Cable, Battery - Black
Nut, Hex 1/4-20
Bolt, Hex Head 1/4-20 x .5”
Battery, (Not Available Through Scag)
Switch, Interlock, Normally Open
Main Wire Harness, STT Cat
Circuit Breaker, 50 AMP
Cover, Circuit Breaker
Relay, 12V 40 AMP Hi Capacity
Relay, 12V 40 AMP Standard
Volt Meter (Includes Mounting Hardware)
Indicator Light, Glow Plugs (Includes Mounting Hardware)
Engine Oil Pressure Gauge (Includes Mounting Hardware)
Water Temperature Gauge (Includes Mounting Hardware)
Switch, PTO
Key Assembly w/Fob
Key, Ignition
Flat Washser, 1/4”
Lockwasher, 1/4”
Bolt, Hex Head 1/4-20 x 3/4”
Pop Rivet, 3/16” x 5/8”
Cupholder
Nut, Elastic Stop 1/4”-20
Bracket, Cupholder Mounting
Retainer, Cupholder
17
18
19
481638
483759
482784
482785
481826
483013
481184
481182
481805
481183
483957
462138
483771
04040-14
04030-02
04001-01
04090-02
9240
04021-08
423674
482544
04041-19
483758
04010-01
04031-01
462146
483533
481808
483746
04020-01
04110-01
451879
481637
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Flatwasher, 0.196 ID.
Key Switch (Includes Mounting Hardware)
Screw, Phillips Washer Head #10-32 x 1/2”
Lockwasher, #10 External Tooth
Instrument Panel, Top w/Decals
Knob, Throttle
Electronic Control Module
Throttle Control
Nut, Hex #10-32
U-Nut, 1/4-20
Base, Instrument Panel
Switch, Interlock, Park Brake Normally Open
** Available through the individual engine manufacturer.
67
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R
Section 8
ELECTRICAL SYSTEM - KUBOTA DIESEL
17
45
44
42
18
GLOW
37
PLUGS
34
STARTER
19
33
38
B
29
2
19
14
1
35
C
24
25
31
D
16
24
25
7
7
32
28
30
39
13
43
18
A
42
12
B
C
D
17
11
18
36
20
41
40
23
22
21
22
6
9
19
21
24
36
1
25
10
22
2
8
21
26
3
27
5
A
4
21
22
25
27
24
20
2008STTKBD-EES
68
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R
Section 8
ELECTRICAL SYSTEM - KUBOTA DIESEL
Ref.
No.
Part No.
Description
1
2
3
4
5
6
7
481176-10
481176-11
462011
481808
*
Cable, Positive Battery
Cable, Negative Battery
Clutch, Electric PTO
Module, Interlock
Battery (not available through Scag)
Switch, PTO
Switch, Key (Incl. Nut and Lockwasher)
Nut, 5/8-32 Special
Lockwasher 5/8”
Cable, Control (Throttle)
Switch, Seat
Gauge, Water Temperature
Gauge, Oil Pressure
483957
48798
48017-03
48017-04
483356
481638
481183
481805
481184
462013
9240
04010-11
04021-01
483629
48298
483825
04010-01
04020-01
04031-01
483013
04001-01
04030-02
451879
04110-01
462069
483360
423674
481811
04001-01
482784
04002-17
483355
48030-09
48030-10
481335
04031-03
481182
481826
483571
482588
483642
483643
483641
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Gauge, Voltmeter
Panel, Instrument Panel
Cup Holder Accessory (Incl. 16, 30, 32)
Screw, #10-32 x 1.5” Phillips
Nut, #10-32 Elastic Stop
Fuse Holder
Fuse, 20 Amp
Harness, Wiring
Screw, #10-32 x .5” Phillips
Nut, Hex #10-32
Lockwasher #10
Relay
Bolt, Hex Hd. 1/4-20 x .75”
Lockwasher 1/4”
Base, Instrument Panel
U-Nut, 1/4-20
Key Assembly w/Fob
Sender Unit, Water Temperature
Cup Holder Mounting Bracket
Sender Unit, Oil Pressure
Bolt, Hex Hd. 1/4-20 x 3/4”
50 Amp Breaker
Bolt, Hex Hd. M8-1.25 x 14mm
Hour Meter
Clamp, Cable .5” ID
Clamp, Cable .75” ID
Boot, Positive Battery Terminal
Washer, Star
Indicator Light, Glow Plugs
Relay, 40 Amp
37
38
39
40
41
42
43
44
45
Cover, Sealed Double
Clip, Wire
Double Fuse Assembly, Sealed (Incl. items 17, 18, 41, 42)
Cover, Sealed Single
Single Fuse Assembly, Sealed (Incl. items 17, 18, 42, 44)
69
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R
Section 8
REPLACEMENT DECALS AND INFORMATION PLATES
MANUFACTURED UNDER ONE OR MORE
OF THE FOLLOWING PATENTS:
4,487,006
4,991,382
5,133,176
6,192,666
7,065,946
4,885,903
4,998,948
5,826,416
6,766,633
7,197,863
4,920,733
5,042,239
5,832,708
6,892,519
4,967,543
5,117,617
5,865,018
6,996,962
PATENTS PENDING
3
2
1
!
CAUTION
Avoid injury from burns.
Shut off engine before
removing fuel tank cap.
483395
5
DIESEL FUEL ONLY
4
Hea Duty
vy-
FORWARD
R
Comm rc
ial
e
F
REVERSE
481971
8
481568
6
7
WARNING
INSTALL BELT COVER BEFORE
OPERATING MACHINE
READ OPERATOR'S MANUAL
9
10
OFF
PREHEAT
ON
START
11
START / DRIVE PROCEDURE
MOWER DECK
PULL OUT TO ENGAGE
PUSH IN TO DISENGAGE
GLOW
PLUGS
483762
12
!
WARNING
SLOW
FAST
AVOID SERIOUS INJURY OR DEATH
483358
13
483444
14
18
15
STTKBD 2008 Decals 1
17
16
70
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R
Section 8
REPLACEMENT DECALS AND INFORMATION PLATES
Ref.
Ref.
No.
Part No.
No.
Description
Part No.
Description
21
22
23
24
25
26
27
**
483405
483229
483727
48404
483509
481664
481663
461982
Decal, Warning
Decal, Turf Tiger
Decal, Scag Logo
Decal, Metalcraft-Made In USA
Decal, Scag Diesel Powered
Decal, Stripes-RH
Decal, Stripes-LH
Spanish Decal Kit, STT
1
2
3
4
5
483407
483406
483044
483395
483201
483693
481568
483300
481971
483402
483429
483425
483762
482360
483358
483358
483633
483158
482565
482493
483444
483154
482577
Decal, Danger-Spinning Blades
Decal, Warning-Rotating Blades
Decal, Patents
Decal, Fuel Tank
Decal, 61” Velocity Plus
Decal, 72” Velocity Plus
Decal, Traction Control
Decal, ROPS Warning
Decal, Heavy Duty Commercial
Decal, Belt Cover
6
7
8
9
10
11
12
Decal, Warning Seat Hold Down
Decal, ROPS
Decal, Instrument Panel - Upper (CAT)
Decal, Instrument Panel - Upper (Kubota)
Decal, Instrument Panel - Lower (CAT)
Decal, Instrument Panel - Lower (Kubota)
Decal, Seat Replacement
Decal, ROPS
Decal, Cutting Height - Lower
Decal, Cutting Height - Upper
Decal, Start/Drive Procedure
Decal, Checks and Adjustments
Decal, Turf Tiger
13
14
15
16
17
18
19
20
483154
19
21
481569
20
R
R
483727
22
23
48404
24
27
26
R
483509
25
2007 STTKBD Decals Page2
71
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Section 8
ELECTRICAL SCHEMATIC - CAT DIESEL
C
B
A
A
B
POSITION
ACCESSORY
OFF
CIRCUIT“MAKE”
N.O.
B
-
+
-
A
N.C.
B
B
+ I
RUN
START
+
I
+
S
+
A
COM.
TERMINAL“I”
TERMINAL“A”
TERMINAL“S”
TERMINAL“B”
D
C
86
85
87
86
85
87
87a
30
30
YELLOW
RED
RED
D
RED
PURPLE
WHT W/PURPLE STRIPE
RED
RED
WHITE
WHITE W/RED STRIPE
RED
D
YELLOW
YELLOW
BLACK
ORANGE
BLACK
DIODE
(600V 2A)
BLUE
RED
RED
RED
RED
RED
72
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Section 8
ELECTRICAL SCHEMATIC - KUBOTA DIESEL
MODULE
PLUG
RELAY
GLOW PLUG
20 AMP FUSE
FUEL SHUTOFF
SOLENOID
WATER TEMP
SENDER
ALTERNATOR
GLOW PLUG
RELAY
STARTER
BRAKE
INTERLOCK
SWITCH
SOLENOID
PURPLE
WHT W/PURPLE STRIPE
RED
RED
BLACK
WHITE
RED
PULL COIL
RELAY
20 AMP FUSE
YELLOW
RED
FUEL PUMP
50 AMP
CIRCUIT BREAKER
L.H. NEUTRAL
SWITCH
CLUTCH
ORANGE
DIODE
(600V 2A)
BLUE
RED
HOURMETER
R.H. NEUTRAL
SWITCH
SEAT
SWITCH
73
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LIMITED WARRANTY - COMMERCIAL EqUIPMENT
Any part of the Scag commercial mower manufactured by Scag Power Equipment and found, in the reasonable judgment
of Scag, to be defective in materials or workmanship, will be repaired or replaced by an Authorized Scag Service Dealer
without charge for parts and labor during the periods specified below. This warranty is limited to the original purchaser and
is not transferable. Proof of purchase will be required by the dealer to substantiate any warranty claims. All warranty work
must be performed by an Authorized Scag Service Dealer.
This warranty is limited to the following specified periods from the date of the original retail purchase for defects in
materials or workmanship:
•
•
•
•
Wear items including drive belts, blades, hydraulic hoses and tires are warranted for ninety (90) days.
Batteries are covered for ninety (90) days.
Frame and structural components including oil reservoir and oil coolers are warranted for 2 years (Parts and labor).
Cutter decks are warranted against cracking for a period of three (3) years. (Parts and labor 1st and 2nd year; Parts
only 3rd year.) The repair or replacement of the cutter deck will be at the option of Scag Power Equipment. We reserve
the right to request components for evaluation. This warranty does not cover any mower that has been subject to
misuse, neglect, negligence, or accident, or that has been operated in any way contrary to the operating instructions as
specified in the Operator’s Manual.
•
•
Engines and electric starters are covered by the engine manufacturer’s warranty period.
Major drive system components are warranted for two (2) years by Scag Power Equipment. (Parts and labor) (Two
year warranty exclude fittings, hoses, drive belts). The repair or replacement of the hydraulic pump or hydraulic motor
will be at the option of Scag Power Equipment. This warranty does not cover any mower that has been subject to
misuse, neglect, negligence, or accident, or that has been operated in any way contrary to the operating instructions as
specified in the Operator’s Manual.
•
•
•
Electric clutches have a Limited Warranty for 2 year (Parts and labor).
Spindle assemblies have a Limited Warranty for three years (Parts and labor 1st year and 2nd; Parts only 3rd year).
Any Scag product used for rental purposes is covered by a 90 day warranty.
The Scag mower, including any defective part must be returned to an Authorized Scag Service Dealer within the warranty
period. The expense of delivering the mower to the dealer for warranty work and the expense of returning it to the owner
after repair will be paid for by the owner. Scag’s responsibility is limited to making the required repairs and no claim of
breach of warranty shall be cause for cancellation or rescission of the contract of sale of any Scag mower.
This warranty does not cover any mower that has been subject to misuse, neglect, negligence, or accident, or
that has been operated in any way contrary to the operating instructions as specified in the Operator’s Manual.
The warranty does not apply to any damage to the mower that is the result of improper maintenance, or to any mower
or parts that have not been assembled or installed as specified in the Operator’s Manual and Assembly Manual. The
warranty does not cover any mower that has been altered or modified, changing performance or durability. In addition, the
warranty does not extend to repairs made necessary by normal wear, or by the use of parts or accessories which, in the
reasonable judgment of Scag, are either incompatible with the Scag mower or adversely affect its operation, performance
or durability.
Scag Power Equipment reserves the right to change or improve the design of any mower without assuming
any obligation to modify any mower previously manufactured. All other implied warranties are limited in duration to
the two (2) year warranty period or ninety (90) days for mowers used for rental purpose. Accordingly, any such implied
warranties including merchantability, fitness for a particular purpose, or otherwise, are disclaimed in their entirety after
the expiration of the appropriate two year or ninety day warranty period. Scag’s obligation under this warranty is strictly
and exclusively limited to the repair or replacement of defective parts and Scag does not assume or authorize anyone to
assume for them any other obligation. Some states do not allow limitations on how long an implied warranty lasts, so the
above limitation may not apply to you.
Scag assumes no responsibility for incidental, consequential or other damages including, but not limited to, expense
for gasoline, expense of delivering the mower to an Authorized Scag Service Dealer and expense of returning it to the
owner, mechanic’s travel time, telephone or telegram charges, rental of a like product during the time warranty repairs are
being performed, travel, loss or damage to personal property, loss of revenue, loss of use of the mower, loss of time or
inconvenience. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other
rights which vary from state to state.
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© 2008
Sc a g Power Equipment
Division of Meta lc ra ft of Ma yville, Inc .
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