OPERATOR’S
MANUAL
Turf Tiger
Propane
Model:
STT52V-25CH-LP
STT61V-25CH-LP
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.
© 2011
PART NO. 03276
PRINTED 1/2011
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 SPARk IGNITION SYSTEM.........................................................................................................................8
2.9 SAFETY AND INSTRUCTIONAL DECALS.................................................................................................9
3.6 WEIGHTS AND DIMENSIONS...................................................................................................................11
SECTION 4 - OPERATING INSTRUCTIONS ...........................................................................12
4.1 CONTROLS AND INSTRUMENT IDENTIFICATION ................................................................................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
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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
52v CUTTER DECk.........................................................................................................................................42
61v CUTTER DECk.........................................................................................................................................44
DECk DRIvE COMPONENTS.........................................................................................................................54
BDP-16A HYDRAULIC PUMP ASSEMBLY.....................................................................................................64
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.
- IMPORTANT -
The replacement of any part on this product
by other than the manufacturer's authorized
replacement part may adversely affect the
performance, durability or safety of this
product.
1.2 DIRECTION REFERENCE
Use of other than original Scag replacement
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
between the seat and the controls where shown in Figure
1-1.
1.3 SERvICING THE ENGINE AND DRIvE
TRAIN COMPONENTS
SERIAL NUMBER
PLATE LOCATION
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.
5,832,708
5,865,018
4,991,382
4,998,948
5,118,617
5,826,416
OF THE FOLLOWING PATENTS:
48 ,006ED UNDER ONE OR MORE
4,885,903
PATENTS PENDING
4,920,733
4,967,543
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MANUFA4,
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T
7
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MODEL
SERIA
Mayville, Wisconsin 53050
Division oPfaMe
L
tenttaslcIsrasfute
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
Thrown Object Hazard
Slow
Fast
Continuously Variable - Linear
Pinch Point
Cutting Element - Basic Symbol
Cutting Element - Engage
Cutting Element - Disengage
Read Operator's Manual
481039S
Hour meter/Elapsed Operating Hours
Thrown Object Hazard
Keep Bystanders Away
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 irreparable
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
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.
WARNING
Check all hydraulic connections for tightness.
Inspect all hydraulic hoses and / or lines to insure
they are in good condition before operating.
1. NEVER allow children to operate this riding mower.
Do not allow adults to operate this machine without
proper instructions.
SIGNAL WORD:
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.
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
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Section 2
3. DO NOT allow children to ride or play on the
machine, it is not a toy.
10. Be sure the interlock switches are functioning
correctly.
4. Clear the area to be mowed of objects that could be
picked up and thrown by the cutter blades.
11. Fuel is flammable; handle it with care. Fill the LP
tank outdoors. Never fill it indoors. Clean up any
spillage before starting the engine.
5. DO NOT carry passengers.
12. Keep flammable objects (cigarettes, matches, etc.),
open flames and sparks away from the LP tank.
6. DO NOT operate the machine under the influence of
alcohol or drugs.
13. Equipment must comply with the latest requirements
per SAE J137 and/or ANSI/ASAE S279 when driven
on public roads.
7. If the operator(s) or mechanic(s) cannot read
English, it is the owner's responsibility to explain this
material to them.
- NOTe -
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.
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.
14. 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.
WARNING
Always wear hearing protection. Operating this
machine over prolonged periods of time can
cause loss of hearing.
15. Check the blade mounting bolts at frequent intervals
for proper tightness.
16. Make sure all hydraulic fluid connections are tight
and all hydraulic hoses and lines are in good
condition before starting the machine.
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.
2.4 OPERATION CONSIDERATIONS
1. Know the function of all controls and how to stop
quickly.
WARNING
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. See Figure 2-4, Page 7 to determine
approximate slope of area to be mowed. ALWAYS
FOLLOW OSHA APPROvED OPERATION.
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.
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.
4
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Section 2
3. Stay two cut widths away from slopes, drop offs,
ditches and retaining walls.
15. Disengage power to the attachments when
transporting or when not in use.
4. To prevent tipping or loss of control, start and stop
smoothly, avoid unnecessary turns and travel at
reduced speed.
16. 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. 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.
6. 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.
7. 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.
WARNING
DANGER
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.
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.
8. 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. Keep hands and feet away from cutter blades and
moving parts. Contact can injure.
18. 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.
9. 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.
19. 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.
20. 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.
10. DO NOT turn sharply. Use care when backing up.
11. Disengage power to cutter deck before crossing
roads, walks or gravel drives.
12. Mow only in daylight or good artificial light.
21. Tie the mower down securely using straps, chains,
cable, or ropes. Both front and rear straps must be
directed down and outward from machine.
13. NEVER raise the deck with the blades engaged.
14. 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. Use care when approaching blind corners, shrubs,
trees, or other objects that may obscure vision.
23. NEVER leave the machine running unattended.
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.
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.
ALWAYS wear seat belt when roll bar is in the up
position.
HAIR PIN
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
DO NOT contact any overhead object with the
roll bar.
6
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Section 2
The potential exposure of the seat belt to severe
environmental conditions make it crucial to inspect the
seat belt system regularly.
20o
15o
10o
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.
5o
Figure 2-4.
WARNING
WARNING
Failure to properly inspect and maintain the seat
belt can cause serious injury or loss of life.
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. See Figure 2-4
to determine approximate slope.
1. Check the full length of the seat belt webbing for
cuts, wear, fraying, dirt and stiffness. See Figure 2-3.
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.
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.
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.
Operate the machine smoothly, no sudden turns,
starts or stops on a slope.
INSPECT BUCkLE
& LATCH
NEvER tow on slopes. The weight of the towed
equipment may cause loss of traction and loss
of control.
DO NOT permit untrained personnel to operate
the machine.
INSPECT WEBBING
Be cautious when loading and unloading onto
trailers or trucks.
Figure 2-3. Seat Belt Inspection
Use only a full width ramp.
Ramp angle should be no more than 15 Degrees.
See Figure 2-4 to help determine approximate
slope.
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 and can
penetrate skin causing injury. 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.
keep body and hands away from pinholes or
nozzles that eject hydraulic fluid under high
pressure.Use paper or cardboard and not hands
to search for leaks.
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.
Safely relieve all pressure from the hydraulic
system by placing the control levers in the neutral
lock position and shutting off the engine before
performing any work on the hydraulic system.
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.
If you need service on your hydraulic system,
please see your authorized Scag dealer.
5. Do not change the engine governor settings or
overspeed the engine. See the engine operator's
manual for information on engine settings.
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.
6. To reduce fire hazard, keep the cutting units, drives,
muffler and engine free of grass, leaves, excessive
grease, oil and dirt.
7. Park the machine on level ground and engage the
parking brake.
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.
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.
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 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.
2.8 SPARk IGNITION SYSTEM
This spark ignition system complies with Canadian
ICES-002.
8
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