Scag Power Equipment Lawn Mower Sthm Users Manual 2006 Operators Cover.pmd

!! Scag-26 Scag Lawn Mower Manuals - Lawn Mower Manuals – The Best Lawn Mower Manuals Collection

STHM to the manual 8696f11f-1610-439e-afcd-9d9745c01c1d

2015-02-06

: Scag-Power-Equipment Scag-Power-Equipment-Scag-Power-Equipment-Lawn-Mower-Sthm-Users-Manual-526764 scag-power-equipment-scag-power-equipment-lawn-mower-sthm-users-manual-526764 scag-power-equipment pdf

Open the PDF directly: View PDF .
Page Count: 45

Download
Open PDF In Browser	View PDF

THIS MANUAL CONTAINS THE OPERATING
INSTRUCTIONS AND SAFETY INFORMATION FOR YOUR SCAG MOWER. READING
THIS MANUAL CAN PROVIDE YOU WITH
ASSISTANCE IN MAINTENANCE AND ADJUSTMENT PROCEDURES TO KEEP YOUR
MOWER PERFORMING TO MAXIMUM EFFICIENCY. THE SPECIFIC MODELS THAT THIS
BOOK COVERS ARE CONTAINED ON THE
INSIDE COVER. BEFORE OPERATING YOUR
MACHINE, PLEASE READ ALL THE INFORMATION ENCLOSED.
© 2005
SCAG POWER EQUIPMENT
DIVISION OF METALCRAFT OF MAYVILLE, INC.

OPERATOR’S MANUAL

MODEL STHM

PART NO. 03168
PRINTED 10/05
PRINTED IN USA

WARNING:
FAILURE TO FOLLOW SAFE OPERATING PRACTICES
MAY RESULT IN SERIOUS INJURY.
* Keep all shields in place, especially the grass discharge chute.
* Before performing any maintenance or service, stop the machine and
remove the spark plug wire and ignition key.
* If a mechanism becomes clogged, stop the engine before cleaning.
* Keep hands, feet and clothing away from power-driven parts.
* Read this manual completely as well as other manuals that came
with your mower.
* Keep others off the tractor (only one person at a time)

REMEMBER - YOUR MOWER IS ONLY AS SAFE AS THE OPERATOR!
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.

This manual covers the operating instructions
and illustrated parts list for:

STHM-23CV
SM-61V
SM-72A

with a serial number of B3600001 to B3699999
with a serial number of B3700001 to B3799999
with a serial number of B3800001 to B3899999

Always use the entire serial number listed on the serial number
tag when referring to this product.

TABLE OF CONTENTS
MODEL STHM
SUBJECT

PAGE

Introduction .................................................................................................. 1
General Safety Instructions .......................................................................... 1
Signal Words ............................................................................................... 1
Symbols ....................................................................................................... 2-3
Before Operating ......................................................................................... 4
While Operating ........................................................................................... 5-6
Maintenance and Storage ........................................................................... 6-7
Initial Run-In Procedures ............................................................................. 7
Mower Operation ......................................................................................... 8-9
Parking Brake Adjustments ......................................................................... 9
Neutral Adjustment ...................................................................................... 9-10
Belt Tension ................................................................................................. 10-11
Belt Alignment ............................................................................................. 11
Cutter Deck Adjustments ............................................................................. 11-12
Cutter Blades ............................................................................................... 13
Custom-Cut Baffle Adjustment..................................................................... 13-14
Lubrication and Maintenance ...................................................................... 15
Troubleshooting Cutting Conditions ............................................................ 16-18
Technical Specifications .............................................................................. 19-20
Notes .......................................................................................................... 21

WE SUPPORT OPE

TECHNICIAN
CERTIFICATION

TABLE OF CONTENTS
(CONTINUED)
SUBJECT

PAGE

Illustrated Parts List
SM 61V, 72A Cutter Deck...................................................................... ... 22-23
Engine Deck ..................................................................................... 24-25
Upper Hydraulics .............................................................................. 26-27
Lower Hydraulics........................................................................................ 28-29
Control Linkage......................................................................................... . 30-31
Instrument Panel ............................................................................... 32-33
Rider Frame Assembly ..................................................................... 34-35
Brake Linkage ................................................................................... 36-37
Eletrical System ................................................................................ 38
Winch Lift System ............................................................................. 39
Replacement Decals ........................................................................ 40
Warranty Statement ........................................................ following section 8

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.
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.
A replacement Operator's Manual is available from
your Scag Servicing Dealer or by contacting Scag
Power Equipment, Service Department at P.O. Box
152, Mayville, WI 53050 or contact us via the Internet
at www.scag.com. The manual for this machine can be
downloaded by using the model and serial number or
use the contact form to make your request.

SIGNAL WORDS

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 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.
Signal Word:
It is a distinctive word on safety decals and throughout this manual that alerts the viewer to the existence and relative degree of the hazard.

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 perspective when in the normal operating position and
facing the forward travel direction.

GENERAL SAFETY INSTRUCTIONS
READ THIS OPERATOR'S MANUAL and all
instructions furnished with attachments.
Perform only those maintenance procedures described in this manual. If major repairs are ever
needed or assistance is desired, contact an Authorized Scag Dealer. To ensure optimum performance
and safety, always purchase genuine SCAG replacement parts and accessories.
Your safety and the safety of others depends significantly upon your knowledge and understanding of
all correct operating practices and procedures of this
machine.
1

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.

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.

ISO Symbols

SYMBOL

CE Mark

DESCRIPTION

SYMBOL

DESCRIPTION

Choke

Transmission

Parking Brake

Spinning Blade

48071S

On/Start

Spring Tension on Idler

Off/Stop

Oil

Falling Hazard

Thown Object Hazard

WARNING
FALLING HAZARD
USE ONLY SCAG APPROVED
RIDING ATTACHMENTS
SEE OPERATOR'S MANUAL

481109

SYMBOL

DESCRIPTION

SYMBOL

DESCRIPTION

Fast

Slow

Continuously Variable - Linear

Cutting Element - Basic Symbol

Pinch Point

Cutting Element - Engage

Hourmeter/Elapsed Operating Hours

Cutting Element - Disengage

Thown Object Hazard
Keep Bystanders Away

Read Operator's Manual

481039S

G. Remove the machine from the truck or trailer and
fuel on the ground. If this is not possible, then
refuel the machine with a portable container,
rather than from a gasoline dispenser nozzle.

BEFORE OPERATING
1. NEVER allow children to operate this riding mower.
Do not allow adults to operate this machine without
proper instructions.

H. Keep the nozzle in contact with the rim of fuel
tank or container opening at all times until fueling
is complete. Do not use a nozzle lock-open
device.

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. The owner/user can prevent and is responsible for
accidents or injuries occuring to themselves, other
people or property.

If fuel is spilled on clothing, change clothing
immediately.

J. Replace gas cap and tighten securely.
8. If the operator(s) or mechanic(s) cannot read English
or Spanish, it is the owner's responsibility to explain
this material to them.

4. Clear the area to be mowed of objects that could be
picked up and thrown by the cutter blades.
5. DO NOT carry passengers.

9. DO NOT wear loose fitting clothing that 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.

6. DO NOT operate the machine under the influence of
alcohol or drugs.

7. Fill the fuel tank with clean, fresh gasoline, with a
minimum octane rating of 87. To avoid personal
injury or property damage, use extreme care in
handling gasoline. Gasoline is extremely flammable
and the vapors are explosive.

10. Operator hearing protection is recommended,
particularly for continuous operation of the mower.
Wear suitable hearing protection. Prolonged
exposure to loud noise can cause hearing impairment
or loss.

A. Extinguish all cigarettes, cigars, pipes and other
sources of ignition.

11. 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.

B. Use only an approved gasoline container.
C. Never remove the gas cap or add fuel with the
engine running. Allow the engine to cool before
fueling.

12. Be sure the safety switches are functioning correctly.
D. Never fuel the machine indoors or in an enclosed
trailer.

13. USE ONLY 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:

E. Never store the machine or fuel container where
there is an open flame , spark or pilot light such as
on a water heater or other appliances.
F. Never fill containers inside a vehicle or on a truck
or trailer bed with a plastic liner. Always place
containers on the ground away from your vehicle
before filling.

Mulch Plate (p/n 9288, 9262)
Hurricane Mulch (p/n 9285, 9267)
Cup Holder (p/n 9240)

WHILE OPERATING

10. Keep hands and feet away from cutting units.

1. Start the engine when the cutter blades are disengaged, the parking brake is on and the right foot
pedal is in the neutral position. Only start the
engine from the operators position.

11. Shut the engine off and wait until the blades come
to a complete stop before removing the grass
catcher container.
12. Never raise the cutter deck while the blades are
rotating.

2. Do not run the engine in a confined area without
adequate ventilation. Exhaust fumes are hazardous
and could possibly be deadly.

13. Always park the mower and/or start the engine on
a level surface. Apply the parking brake to
prevent the mower from moving when you are not
in the operator’s position.

3. Use care when loading or unloading the machine
onto a trailer or truck.

14. If the cutting blades should strike a solid object or
the equipment should start to vibrate abnormally,
stop the engine, disconnect the spark plug wires,
and check immediately for the cause. Vibration is
generally a warning of trouble. Check the machine
for damaged or defective parts. Repair any
damage before starting the engine or operating the
cutter deck. Be sure the blades are in good
condition and the blade bolts are tight.

4. Look behind and down before backing up to be
sure of a clear path.
5. Using the machine demands attention. To
prevent loss of control:
A. Mow only in daylight or when there is good
artificial light.
B. Watch for holes or other hidden hazards.

15. 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.

C. Do not drive close to a drop-off, ditch, creek
bank, or other hazard.
E. Do not operate where conditions are slippery.

WARNING:

6. The discharge chute must always be installed and
in the down position on the side discharge cutter
deck except when the mulching plate or Hurricane
Mulch Kit are properly installed. If the discharge
area should plug, shut the engine off and wait for
all movement to stop before removing the obstruction.

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. ALWAYS FOLLOW OSHA
APPROVED OPERATION.

16. Use care when approaching blind corners, shrubs,
trees, or other objects that may obscure vision.

7. NEVER operate with the PTO shield, or other
guards not securely in place. Be sure all interlocks area attached, adjusted and funcioning
properly.

17. Do not touch the engine or muffler while the engine
is running or soon after it is stopped. These areas
could be hot enough to cause a burn.

8. Disengage the blades and wait for them to stop
before crossing gravel drives, walks or roads.
9. Be aware of discharge direction and do not point
at anyone.

7. Be sure the machine is in safe operating condition by
keeping nuts, bolts, and screws tight. Check the
blade mounting bolts and nuts frequently to be sure
they are tightened.

18. Before leaving the operator’s position or leaving
the mower unattended, move the right foot pedal
into the neutral position, apply the parking brake,
and move the blade engagement switch to OFF.
Shut the engine OFF and remove the key.

8. If the engine must be running to perform a maintenance adjustment, keep hands, feet, clothing and
other parts of the body away from the cutter deck
blades and other moving parts.

19. Do not pass or stand on the grass discharge side
of any mower with the engine running. Stop the
cutter blades when another person approaches.

9. Do not overspeed the engine by changing governor
settings. To be sure of safety and accuracy, have an
authorized dealer check maximum engine speed with
a tachometer.

WARNING:
Battery posts, terminals, and related accessories
contain lead and lead compounds, chemicals
known to the State of California to cause cancer
and reproductive harm. Wash hands after
handling.

10. The engine must be shut off before checking the oil
or adding oil to the crankcase.

MAINTENANCE AND STORAGE

11. Allow the engine to cool before storing the mower in
any enclosure such as a garage or storage shed.
Make sure the fuel tank is empty if the machine is to
be stored in excess of 30 days. Do not store the
mower near any open flame or where gasoline fumes
may be ignited by a spark.

1. Disconnect the spark plug wire from the spark
plug to prevent accidental starting of the engine
when servicing, adjusting or storing the machine.
2. If the mower must be tipped to perform maintenance or adjustment, remove the battery, drain
the gasoline from the fuel tank and the oil from
the crankcase. Use jack stands to support the
machine when required.

12. Always store gasoline in a safety-approved, red
container.
13. Be careful when servicing the battery as it contains
acid, which is corrosive and could cause burns to
skin and clothing.

3. To reduce potential fire hazard, keep the engine
free of excessive grease, grass, leaves and accumulations of dirt.
4. Park the machine on level ground. Never allow
untrained personnel to service the machine.

14. Batteries release explosive gases when being
charged or discharged. Keep batteries away from
any source of sparks and/or flame. Charge batteries in an open, well ventilated area.

5. Disconnect battery or remove spark plug wires
before making any repairs. Disconnect the negative
terminal first and the positive last. Reconnect
positive first and negative last.

15. Make sure all hydraulic connections are tight and all
hydraulic hoses and lines are in good condition
before starting the machine.

6. Use care when checking blades. Wrap the blades
or wear gloves and use caution when servicing them.
Only replace blades. Never straighten or weld
them.

WARNING:
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.

INITIAL RUN-IN PROCEDURES
(FIRST DAY OF USE OR APPROXIMATELY 10 HOURS)
1. Check the belts for proper tension at 2, 4 and 8
hours. Adjust as needed. (See Belt Tension,
page 9).
2. Check the neutral adjustment. (See Adjustments, page 8)
3. Check the tires for proper pressure.
Caster Wheels
Flat Free
Drive Wheels
12 psi
Rear Steering Wheel 15 psi
4. Check for loose hardware. Tighten as needed.
5. Check the safety switches for proper adjustment:
* The engine should crank and start if the
machine is in neutral, the PTO engagement
switch is OFF and the parking brake is ON.
7. Apply lubricant to all the grease fittings. Lubricant
was applied at the factory. This is just a precautionary check to make sure that all the fittings have been
lubricated.

MOWER OPERATION

-NOTEWhen the PTO is engaged or (possibly) disengaged, a squealing sound from the underside of
the machine is normal. It is caused by the
electric clutch plates meshing as the cutter
blades come up to speed. For best equipment
life, engage the clutch with the engine at 3/4
throttle, not under full load.

1. Read and understand the safety instructions
before attempting to operate this machine.
2. Before starting the engine:
* Check the oil level in the engine and the
hydraulic reservoir.
* Fill the fuel tank with clean, fresh, lead-free
gasoline.
* Open the fuel valve on the bottom of the
fuel tank.

WARNING:
If you are not familiar with the operation of the
hydrostatic drive, practice turning and
maneuvering before engaging the cutter blades.

-NOTEUse gasoline with an octane rating no less than
87.

5. Release the parking brake. Depress the right foot
pedal at the toe end to drive forward (See Figure 1)
or depress the pedal at the heel end to drive in
reverse. (See Figure 2)

* The right hand foot pedal must be in the
NEUTRAL position.
* The blade clutch switch must be in the OFF
position.
* The parking brake must be ON.

-NOTEThe left side operator presence pedal must be
depressed for operation.

3. Start the engine:
* Choke as required. If the engine is cold, pull
the choke knob out. When the engine starts,
slowly push the choke in. If the engine stalls,
repeat the above operation. When the engine
is warm, choking may not be necessary.
4. Depress the left hand operator presence pedal.

sgb002

5. Engage the cutter blades by pulling the blade clutch
switch into the ON position. Push the switch to the
OFF position to disengage the cutter blades.

Depress Toe End of Pedal

Figure 1. Forward Operation

PULL UP TO ENGAGE
PUSH DOWN TO DISENGAGE

390S0138

ADJUSTMENTS
PARKING BRAKE

Minor brake adjustments can be made by loosening
the top nut on both brake cables (see Figure 4).
Back the nuts off approximately 1/4". While pulling
one cable downward, tighten the bottom nut on the
cable until it touches the bottom of the brake cable
mount. Tighten both the top and bottom nuts to
lock the cable in place. Repeat the above steps for
the second brake cable. Make sure that both
cables are adjusted evenly so that the brakes do not
cause the mower to pull to the left or right.

SGB003

Depress Heel End of Pedal

Figure 2. Reverse Operation

-NOTEThis is a minor brake adjustment. If the
brakes do not function properly after this
adjustment, see your Scag Service Dealer
before operating your mower.

6. When driving over curbs, disengage the cutter
blades and raise the cutter deck to clear the curb.
Drive forward over the curb. After the curb is
clear, lower the cutter deck back to normal
operating position. Be sure to leave slack in the
cable after lowering the cutter deck.
7. To "freewheel" or move the machine around
without the engine running, rotate the dump valve
lever located on the left rear of the engine deck to
the freewheel position (See Figure 3). The lever
must be returned to the drive position to operate
the machine.
DUMP VALVE
FREE
WHEEL

Adjust
Nuts

DRIVE

SGB028

Figure 4. Parking Brake Adjustment

NEUTRAL ADJUSTMENT
1. Set the engine deck up on jack stands so the wheels
are free to rotate.
SGB006

2. Block the caster wheels to prevent an accident
should the machine fall off the jack stands.

Figure 3. Dump Valve Location
-NOTETo prevent damage to the hydraulic system, do
not exceed 1MPH when moving the machine in
the freewheel postion.

3. Start the engine and determine if the drive wheels
rotate.

If the drive wheels consistently rotate when foot
pedal control is in neutral, go to step 4.
If the drive wheels inconsistently rotate, i.e. drive
wheels sometimes rotate and sometimes do not
when foot pedal is not depressed, then check
neutral adjustment bolt for "zero free play" in neutral
control spring.
-NOTEIf there is free play in the foot pedal have your
SCAG servicing dealer inspect the machine and
repair it as needed.

5. Check the adjustment of the right foot control pedal
for full forward speed. The pedal should rest on the
foot plate when the pump is stroked in the full
forward position. To make an adjustment, disconnect the ball joint from the pedal arm and loosen the
jam nut (See Figure 6). Place the foot control pedal
forward against the foot rest and adjust the ball joint
on the rod until the stud aligns with the hole in the
arm. Bolt the ball joint to the arm and tighten the
jam nut.

4. If the drive wheels rotate in the forward travel
direction, turn the adjustment bolt clockwise until the
tire rotation stops. If the drive wheels rotate in the
backward travel direction, turn the adjustment bolt
counter-clockwise until the tire rotation stops (See
Figure 5).
Jam Nut
Ball Joint

SGB030

Figure 6. Foot Control Pedal Adjustment
6. Start the engine. The wheels should rotate only
when the foot control pedal is depressed.

BELT TENSION

CAUTION:
Stop 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.

Neutral Control
Spring

9/16" Socket

SGB029

-NOTEThe Hydro Drive Belt is spring-loaded and
does not require adjustment.

Figure 5. Neutral Adjustment

To adjust cutter deck drive and blade belts:
1. Remove belt cover.

2. To adjust cutter deck drive belt: Adjust the nut so
that the belt moves 1/2" with 10 pounds of pressure. (See Figure 7).

Adjust the tension by tightening or loosening
the nut on the J-bolt. (See Figure 9).
Nut

"J" Bolt

End Of L-Shaped
Bracket
Nut

Deck

Belt
"J" Bolt

Washer

Washer
Belt

SGB044

SGB031

Figure 9. Blade Belt Tension Adjustment

Figure 7. Cutter Deck Drive Belt Tension

4. Replace the belt covers.

3. To adjust blade drive belt: Using a belt tension
gauge, check the belt tension so that the belt moves
1/2" with 10 pounds of pressure. (See Figure 8).

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 Dealer
for belt adjustment.

CUTTER DECK ADJUSTMENTS
Due to the many conditions that exist, it is difficult to
suggest a setting that will work for every lawn. There
are, however, two adjustments that should be made on
the cutter deck: pitch and height.
PITCH is the angle of the blades (comparing front
to rear).

Use of Tension Gauge

HEIGHT is the nominal distance that the blade is
off the ground. This measurement is made with the
blades pointed side to side and distance is measured
between cutting tip and ground.

sgb007

Figure 8. Blade Drive Belt Tension Check

Adjusting the blade height can be done by moving any
number of the five smaller spacers on the blade mounting bolts to the top or to the bottom of the spindle shaft.
All blades should be positioned equally (See Figure 10).
The unit is shipped with one spacer on top of spindle
and four underneath (See Figure 10).

There are three positions for mounting the cutter deck
(See Figure 11). For cutting in the lowest position,
mount the cutter deck in the top hole (A). For cutting
in the highest position, mount the deck in the lowest hole
(C). Setting the cutter deck height will be determined
by the type of cutting conditions.

This adjustment does not affect blade pitch.

A
B

Hex Nut-Torque
to 75 Lb-Ft

Cutter Blade
Spacer 1/4"

Cutter
Deck

Spindle
Shaft

SGB032

Figure 11. Cutter Deck Height Adjustment
Spindle
Assembly

Hex Head
Bolt / Nut
Cutter Blade
Spacers1/4"

Washer

Caster spacers also can be repositioned to change the
cutting heights and to change the pitch of the deck (See
Figure 12).
To adjust the caster spacers, raise the deck and remove
the pin and caster wheel. Reposition the caster spacers
as needed, then replace the caster, top spacers and pin.
Make the same adjustments on the other caster wheel.

Cutter Blade
Hex Head Bolt

Figure 10. Cutter Blade Adjustment

To adjust the blade height, move any number of the five
1/4" thick spacers on the blade mounting bolts to the
top of the spindle shaft or below the spindle shaft.
Pin

-NOTEFor best results, keep the cutter deck
high in relation to the engine deck and
the blades low in the cutter deck; ie. 4 or
5 spacers below the spindle shaft.

Spacers

Additional range to the cutting height can be
achieved by repositioning the cutter deck in relationship to the engine deck. This adjustment also affects the
pitch of the deck.
2002SGB005

Figure 12. Repositioning Spacers

CUTTER BLADES

A. 3" Position - baffle is installed using the top set of
holes on the front baffle welded inside the cutter
deck. (See Figure 15). The Advantage cutter deck
will deliver the best quality-of-cut in very tall, wiry,
tough to cut grass.

CAUTION:
Blades have a sharp cutting edge. Wear protective
gloves or wrap blades with protective material when
removing, sharpening and installing blades.

B. 3-1/2" Position (factory setting, Advantage Deck) baffle is installed using the middle set of holes on the
front baffle welded inside the cutter deck. (See
Figure 16). For general purpose cutting, place the
Custom-Cut Baffle in the 3-1/2" position. This gives
the best mix of cutting performance in all types of
grass.

Angle Blade Back
Do Not Cut In

C. 4" Position (factory setting, Velocity Plus Deck) baffle is installed using the bottom set of holes on the
front baffle welded inside the cutter deck . (See
Figure 17). Placing the baffle in the 4" setting will
enhance fall cutting (leaf pickup) and reduce cutter
deck "blowout".

X Must NOT Exceed
1/3 Blade Width
SGB033

Figure 13. Blade Sharpening
Do not sharpen beyond 1/3 of the width of the blade. (See
Figure 13).

To adjust the Custom-Cut Baffle height:

-NOTEDress the blade with a file. Using a wheel grinder
may burn the blade. Check the balance of the blade.
If blades are out of balance, vibration and premature wear can occur. See your authorized Scag
Dealer for blade balance tools.

1. Place the cutter deck in the transport position.
2. Remove the hardware securing the Custom-Cut
Baffle to the cutter deck. (See Figure 14).

CUSTOM-CUT BAFFLE ADJUSTMENT
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 three (3)
different positions for optimum performance.

-NOTEHardware location used in the illustrations
are for reference only. Location of
hardware may vary depending on cutter
deck size.
MOUNTING
HARDWARE

MOUNTING
HARDWARE

2004 CCB

Figure 14. Custom-Cut Baffle

3. Move the Custom-Cut Baffle to desired position.
(See Figures 15 through 17 for position).
4. Reinstall the mounting hardware as shown. (See
Figures 15 though 17). Torque hardware to 39ft.lbs.
TOP SET OF HOLES
FOR 3" SETTING

CARRIAGE BOLT

2004 CCB - 3" Setting

FLATWASHER

ELASTIC STOP
NUT

Figure 15. 3" Custom-Cut Baffle Position
MIDDLE SET OF HOLES
FOR 3-1/2" SETTING

CARRIAGE BOLT

2004 CCB - 3-1/2" Setting

FLATWASHER

ELASTIC STOP
NUT

Figure 16. 3-1/2" Custom-Cut Baffle Position
BOTTOM SET OF HOLES
FOR 4" SETTING

CARRIAGE BOLT

2004 CCB - 4" Setting

FLATWASHER

ELASTIC STOP
NUT

Figure 17. 4" Custom-Cut Baffle Position

LUBRICATION & MAINTENANCE
* Lubrication may be required every 8 to 40 hours, depending on climate and environment.
Break-In
+ Compatible Greases: Mobilux #2 found at Mobil Service Stations
(1st 10 Hours)
Ronex MP found at Exxon Service Stations
8 Hours (Daily)
Super Lube MEP #2 & Super Stay-M #2 found at Conoco Service Stations
Shell Alvania #2 found at Shell Service Stations
25 Hours
Lidok EP #2 found at industrial shops
40 Hours (Weekly)
100 Hours (Biweekly)
200 Hours (Monthly)
500 Hours or Annually
PROCEDURE
COMMENTS
Check all hardware for proper tightness
Change engine oil and filter at 5 hours
Check hydrostatic oil level
Check belt tension

X
X
X
X
X
X
X
X
X
*
X
X
X

Fill fuel tank before starting
Check engine oil
Clean blower screen
Remove debris from under belt cover
Sharpen cutter blades
Grease spindle bearings 2 pumps of hand gun
Clean air filter/check for damage or loose parts
Check/clean air intake and cooling areas1
Check tire pressure
X

Add oil as needed - SAE 10W30

Do not over fill

MORE OFTEN IF NEEDED
US Lithium MP White Grease 2125+
MORE OFTEN IF NEEDED
MORE OFTEN IF NEEDED
Add or adjust as required

Service precleaner element1
X
X
X
X
X
X
X

X
X
X
X
X
X
X
X
X
X

Check battery electrolyte level

Distilled water only

Grease caster wheel bearings
Grease idler arm pivots
Service air cleaner element1
Change engine oil
Check spark plug condition and gap
Clean cooling areas1

Chassis grease
Chassis grease
See engine mfg. information

Check all hardware for proper tightness
Change engine oil filter
Check hydro fluid reservoir level
Clean and adjust spark plugs
Grease rider frame pivot
Grease control bell cranks
Grease steering handle bearing
Grease foot pedal bearings
Grease rear wheel pivot (vertical)
Grease rear wheel bearing
X
X

Drain hydraulic system and replace fluid
Change hydrostatic oil filter

See engine mfg. information

See engine mfg. information
See engine mfg. information
Chassis Grease
Chassis Grease
Chassis Grease
Chassis Grease
Chassis Grease
US Lithium MP White Grease 2125+
Use SAE 10W30 motor oil
Clean area before removing filter

1. Perform these maintenance procedures more frequently under extreme dusty or dirty conditions.

TROUBLESHOOTING CUTTING CONDITIONS
CAUSE

CONDITION
Stringers - Occasional
Blades of Uncut
Grass

Width of Deck

CURE

Low engine RPM

Run engine at full 3600 RPM

Ground speed too fast

Slow speed to adjust for conditions

Wet grass

Cut grass after it has dried out

Dull blades, incorrect sharpening

Sharpen blades

Deck plugged, grass accumulation

Clean underside of deck

Belts slipping

Adjust belt tensions

Dull, worn blades

Sharpen blades

Incorrect blade sharpening

Sharpen blades

Low engine RPM

Run engine at full 3600 RPM

Belt slipping

Adjust belt tension

Deck plugged, grass accumulation

Clean underside of deck

Ground speed too fast

Slow speed to adjust for conditions

Wet grass

Cut grass after it has dried out

Bent blades

Replace blades

Not enough overlapping
between rows

Increase the overlap of each
pass

SGB020

Streaking - Strips of
Uncut Grass in Cutting
Path

Width of Deck
SGB018

Streaking - Strips of
Uncut Grass Between
Cutting Paths

Width
of
Deck

SGB019

Width
of
Deck

TROUBLESHOOTING
CAUSE

CONDITION
Uneven Cut on Flat
Ground - Wavy
High-Low
Appearance,
Scalloped Cut, or
Rough Contour

CURE

Lift worn off of blade

Replace blade

Blade upside down

Mount with cutting edge toward
ground

Deck plugged,grass accumulation

Clean underside of deck

Too much blade angle (deck pitch) Adjust pitch and level
Deck mounted improperly

See your authorized SCAG dealer

Bent spindle area

See your authorized SCAG dealer

Dull blade

Sharpen blade

Uneven ground

May need to reduce ground speed,
raise cutting height, and/or change
direction of cut

Tire pressures not equal

Check and adjust tire pressure

Wheels uneven

Check and adjust tire pressure

Deck mounted incorrectly

See your authorized SCAG dealer

Width of Deck
SGB020

Uneven Cut on
Uneven Ground Wavy Appearance,
High-Low Scalloped
Cut, or Rough Contour

Width of Deck
SGB021

Sloping Ridge Across
Width of Cutting Path

Width of Deck
SGB023

TROUBLESHOOTING
CAUSE

CONDITION
Scalping - Blades
Hitting Dirt or
Cutting Very Close to
the Ground

Width of Deck

CURE

Low tire pressures

Check and adjust pressures

Ground speed too fast

Slow speed to adjust for conditions

Cutting too low

May need to reduce ground speed,
raise cutting height, change direction
of cut, and/or change pitch and level

Rough terrain

May need to reduce ground speed,
raise cutting height, and/or change
direction of cut

Ground speed too fast

Slow speed to adjust for conditions

Wet grass

Cut grass after it has dried out

Blades not mounted evenly

Adjust pitch and level

Bent blade

Replace blade

Internal spindle failure

See your authorized SCAG dealer

Mounting of spindle incorrect

See your authorized SCAG dealer

Bent spindle mounting area

See your authorized SCAG dealer

Internal spindle failure

See your authorized SCAG dealer

Bent deck housing

See your authorized SCAG dealer

SGB022

Step Cut
Ridge in Center of
Cutting Path

Width of Deck
SGB024

Slope Cut - Sloping
Ridges Across Width
of Cutting Path

Width of Deck
SGB025

TECHNICAL SPECIFICATIONS
ENGINES
General Type:
Brand:
Models:
Horsepower:
Type:
Displacement:
Cylinders:
Governor:
Air Intake Group:
Exhaust Group:
Fuel Pump Group:
Oil Pump Group:
Valve Group:
Starter/Electrical:
Charging System:

Heavy duty industrial/commercial
Kohler 23 HP Pro Series (Spec PS-75523)
CV23S
23HP @ 3600 RPM
4 cycle gas, twin cylinder, vertical shaft engine
23HP = 674 cc
2 cast-iron sleeves
Mechanical type governor with variable speed control set
at 3600 rpm (+50 rpm), idle set at 1900 rpm (+100rpm)
Large capacity dual element, chopper-type grass screen
Single exhaust canister muffler
Mechanical fuel pump with inline fuel filter, fixed jet
carburetor with Smart-Choke™ and fuel shutown solenoid
Positive displacement Gerotor™ oil pump.Capacity 2.0 U.S.
Quarts with filter, standard oil cooler.
Hydraulic valve lifters standard
12 volt battery with alternator, solid state ignition with key
start
15 amp

ENGINE DECK
Fuel Tank:
Drive Wheels/Tires:
Brakes:
Parking Brake:
Frame:

5 gallon (19.0 litres) seamless polyethylene
20x10.0-10 four-ply pneumatic tubeless, radius edge
Integral braking with drive system
Drum-type
Hybrid tractor trailer frame with stabilized pivot

DRIVE SYSTEM
Type:
Hydro Pump:
Drive Wheel Motors:
Dump Valve:
Hydro Fluid Cooling Group:
Travel Control:
Steering:
Axles:
Safety Group:
Instrument Panel:
Forward Speed Range:
Reverse Speed Range:

Hydro drive with one variable displacement pump and two
cast-iron high torque motors
#15 cast-iron variable displacement pump with remote dump
valve for movement without running engine
12 cu. inch cast-iron high torque motors
Single lever allows for movement without engine running
Heavy-duty cooling radiator, 13 qt. capacity nylon cooling
reservoir, uses, SAE 10W30 fluid and 10 micron filter
Hydro drive with single foot pedal for forward and reverse
speed control, infinitely variable speeds
Aircraft-type yoke steering handle with stainless steel cable
1-1/4" tapered motor shafts
Foot actuated engine kill, brake interlock, blade/clutch
interlock switch
Ammeter, hour meter, key switch, throttle, fuses, manual
choke, blade brake clutch switch
0 to 6.8 mph
0 to 5.4 mph

Date of Issue: April, 2005
Specifications Subject to Change Without Notice

TECHNICAL SPECIFICATIONS (CON'T)
CUTTER DECKS
Type:
Construction:
Cutting Width:
Cutting Height Adjustment:
Cutter Blades:

Blade Engagement:
Lift System:
Discharge Opening:
Caster Wheels:
Spindles:
Pulleys:
Cutter Deck Belts:

SM61V, SM 72A
Out-front design with anti-scalp roller and pneumatic shock
absorber for deck flotation
10-gauge steel with 7-gauge (3/16") steel skirt
61.0 " (155.0 cm), 71.5" (181.6 cm)
Adjustable from 1-3/4" to 5-1/4" in 1/4" increments
.197 Thick, Milled Edge, Wear Resistant Marbain™
SM61V:Three (3) 21" blades
SM72A: Three (3) 24" blades
Electric blade brake clutch with instrument panel switch
Patented manual winch with automatic brake/clutch,
stainless steel cable
Extra wide 11.5", 13.75 " discharge opening with hinged
chute
9 x 3.5 smooth tread flat free, roller bearings, with
quick pin removal
Cast housing, taper roller bearing, low maintenance with
top access grease fitting and grease overfill relief poppet
Cast-iron with easily removed taper hubs
B-section with Kevlar cord

ADDITIONAL SPECIFICATIONS
Seat:

Foam padded, lever adjustment forward and back, with
padded arm rests

OPTIONAL ITEMS/ATTACHMENTS
Mulching Plate:

Cup Holder:

Steel plate fits over discharge opening. No blade change
or removal required. Installs and removes in the field.
The unique Hurricane Mulch System employs eye of the
hurricane mulching plates combined with bolt-in v-baffles,
flow directors, Eliminator blades, a side dischargeclose-off
plate.
Lift mounts to the side of the rider frame assembly to raise
and lower the deck at the flip of a switch.
12 Guage Steel with rubber retainer.

APPROXIMATE DIMENSIONS

SM61V

SM72A

Length:
Length with Grass Catcher:
Tracking Width:
Width:
Width (with discharge chute up):
Width with GCV grass catcher:
Height:
Height with GCV grass catcher:
Weight:
Weight with GCV grass catcher:

113.0"
137.0"
50.0"
70.0"
63.0"
70.0"
43.0"
51.5"
950 lbs.
1250 lbs.

118.0"
142.0"
50.0"
81.0"
74.0"
84.0"
43.0"
51.5"
1000 lbs.
1300 lbs.

Hurricane Mulch Kit

Electric Deck Lift:

Date of Issue: April, 2005
Specifications Subject To Change Without Notice

NOTES

SM-61V & SM-72A CUTTER DECK
29
5

30
38

40
39
37

10
8
8

26
8

41
33

37
43

5
5

21
20

30
38
20

2
3

29
30

17
23 27 28
21

77
78

47
48

50
51
49
32
29
43

71
69
85

38
80
85

68 56

29
45

82
8

61
53
75

65
63
76

79
STHM2006CD

SM-61V & SM-72A CUTTER DECK
Ref. Part
No. No.
1
1
2
3
4
5
6
6
7
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
37
38
39
40
41
42

461861
461864
461846
461296
04001-09
04021-10
04029-03
461583
46848
04020-09
43592
48926
04001-172
482745
482747
48940
48966
48265
48295
48912
481001
04021-05
04004-14
04019-04
04001-46
04041-07
483215
04017-16
04021-09
421355
04001-108
04019-03
482744
04019-06
04017-37
04021-09
04041-07
48181
04041-12
43077
461091
04001-46
45037
48224
424367
04041-08
04041-08S
04050-02
43028
44078
04001-175

Description

61 72

Cutter Deck, Velocity + (Incl. decals)
Cutter Deck, Advantage (Incl. decals)
Discharge Chute, Velocity Plus
Discharge Chute, Advantage
Bolt, 5/16-18 x 1" Hex Head
Nut, 5/16-18 Elastic Stop
Wing Nut, 3/8-16
Belt Cover (Incl. Decals)
Belt Cover (Incl. Decals
Nut, 5/8-11 Hex Head
Spacer, Cutter Blade
Tapered Hub, 1.125 Bore
Bolt, 1/4-20 x 1" Hex Head Grade 8
Pulley, 6.35 O.D.
Pulley, 6.95 O.D.
Pulley, Double Groove, 6.35/5.75 O.D.
Pulley, Double Groove, 6.95/5.75 O.D.
Belt, R.H. Blade Drive
Belt, R.H. Blade Drive
Belt, Deck Drive
Belt, Deck Drive
Lock Nut,3/8-16 Hex Head
Stud, 3/8-16 x 6-3/4"
Nut, 3/8-16 Serr. Flange
Bolt, 3/8-16 x 2-1/4"
Flatwasher, 3/8 (.391 x .938 x .105)
Pulley, Idler
Capscrew, 5/16-18 x 3/4 Ser. Flg. HH
Nut, 3/8-16 Elastic Stop
Idler Pulley Support
Bolt, Hex Head 5/16-18 x 4-1/4"
Nut, 5/16-18 Ser. Flg. Hex Hd.
Pulley, 5.75
Nut, 1/2-13 Ser. Flg. Hex Hd.
Capscrew, 1/2-13 x 1-1/4 Ser. Flg.
Nut, 3/8-16 Elastic Stop
Flatwasher, 3/8 (.391 x .938 x .105)
Pulley
Flatwasher, 3/8 (.375 x 1.50 x .060)
Spacer
Idler Arm (Incl. 37)
Bolt, 3/8-16 x 2-1/4"
Idler Pivot
Bearing
Dust Shield
Flatwasher, 3/4 ( .776 x 1.25 x .059)
Flatwasher, 3/4 ( .776 x 1.25 x .035)
Retaining Ring, .75 EXT 'E'
J-Rod Idler Pulley
J-Rod Idler Pulley
Bolt, 5/16-18 x 1-1/2" Hex Head Gr 8

Ref. Part
No. No.Description
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67

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
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
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

68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86

x
x

04019-03
04001-77
46082
04050-05
48224
45329
43277
461841
44078
482245
461663
43589
481024
481022
48098
48677
43664
43312
43296
481025
43297
481035
04001-41
04040-10
482879
482880
04063-08
04066-01
45944
482295
9275
424164
423795
04003-23
481770
48114-03
04021-22
04030-03
481769
48100-01
04001-37
04021-07
43022
45006
43037-01
46079

Nut, 5/16-18 Ser. Flange
Bolt, 3/8-16 x 3-1/2" Hex Head
Support Assembly
Retaining Ring, 1-1/8 EXT 'E'
Bearing
Idler Pivot Support
Spacer
Idler Arm (Incl. 47)
J-Rod, Drive Idler
Spring, Chute Return
Spindle Assembly
Shaft, Cutter Spindle
Seal, 2.00 O.D. x 1.50 Bore
Bearing Assembly
Shield, Spindle
Relief Fitting, Cutter Spindle
Spindle Housing
Spacer, Outside
Spacer, Inside
Seal, 2.00 O.D. x 1-5/8 Bore
Spindle Bushing Bottom
Nut, 1-1/16-18 UNEF-2B
Bolt, 5/8-11 x 9-1/2"
Flatwasher, 5/8 (.688 x 1.75 x .134)
Cutter Blade, 21" Standard
Cutter Blade, 24" Standard
Key, 1/4 x 1/4 x 2"
Quick Pin
Shaft, Roller
Guide, Roller
Wheel Assy., Caster
Baffle, Custom-Cut 61V
Baffle, Custom-Cut 72A
Bolt, Carriage 3/8-16 x 1”
Retainer, Caster Wheel
Grease Fitting, 45 Deg. 1/4-28
Nut, Elastic Stop 5/16-18 Grade 8
Lock Washer, 5/16"
Roller Bearing, Caster Wheel
Bushing, 7/8 x 1" Flanged
Bolt, 1/2-13 x 5-1/2" Hex Head
Nut, 1/2-13 Elastic Stop
Sleeve, Caster Wheel Bearing
Caster Yoke
Spacer, Caster Yoke 1/2"
Caster Wheel and Support Assy.

61 72
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
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
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
x
x
x
x

ENGINE DECK
6

8
7

101
19

100

101

4
9

17
90
3

2
16

18
94

19
16

27
103

95
16 19

16
83

29
31

19
25

29
83
37

85
66
53
55

30
36

102

86
68
89

56 34

72
69
73

75
62

77
78

42
84

50
40

63
79
76

74
92
80
82
81

57
16

52
SGB010B

ENGINE DECK
Ref. Part
No. Number

Description

1
2
3
4
5
6
7
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
35A
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

Carriage Bolt, 1/4-20 x 6"
Battery Box
Nut, Wing 1/4-20
Battery
Battery Cover
Insulation, Battery Cover
Pad, Fuel Tank Strap
Cap, Fuel Tank
Fuel Tank Assy. (Includes items 10 - 11)
Bushing, Fuel Tank Valve
Fuel Shut Off Valve
Strap, Fuel Tank
Phil RDHD Machine Screw 1/4-20 x 2"
Hex Nut, 1/4-20
Pad, Fuel Tank Support
Carriage Bolt, 5/16-18 x 3/4"
Support, Fuel Tank
Bracket, Fuel Tank Support
Serr. Fl. Hex Nut 5/16-18
Lockwasher, 5/16 Int. Tooth
Engine, 23 HP Kohler CV, (Spec PS-75523)
Hex Head CPSCR, 5/16-18 x 1-3/4"
Oil Drain Extension
Plate, Backing
Engine Deck
Wire Loom, .50 I.D.
Washer, 1/4 (.312 x .750 x .065)
Bolt, Hex Head 1/2-13 x 2"
Sleeve, Shock Absorber Mount
Shock Absorber
Hex Locknut, Elastic Stop 1/2-13
Serr. Fl. Hex Head CPSCR, 7/16-14 x 1"
Serr. Fl. Hex Nut, 7/16-14
Motor - White (Includes item 52)
Lockwasher, 1/2"
Nut, 1/2-13
Anchor, Brake
Bolt, Hex Head 1/4-20 x 1-1/4"
Serr. Fl. Hex Nut, 1/4-20
Serr. Fl. Hex Head CPSCR, 5/16-18 x .75"
Parking Brake Assembly (Incl. 41-44)
Brake Pads- Pair
Springs - Pair
Actuating Arm, Incl. Pin & Clip)
Clip
Hub Assembly (Includes item 50)
Brake Drum
Rim and Tire Assembly (Includes items 48, 49)
Tire 20 x 10 x 10, 4 Ply
Rim Only
Bolt, Hub
Wheel Nut
Castle Nut, 1.0-20 UNEF
Spacer, Clutch

04003-01
423308
04029-01
48015
42392
48099
48292
481556
46846
48309
48308
421239
04010-10
04020-02
48205
04003-12
42377
421522
04019-03
04031-09
481776
04001-12
482352
422534
45586
48030-09
04040-14
04001-72
43041
48516
04021-07
04017-42
04019-05
48769
04030-06
04020-07
421289
04001-59
04019-02
04017-16
48461
48461-02
48461-03
48461-04
48461-05
46929
48513
48933
48933-02
48416-04
04008-03
04028-01
48680
43261

Ref. Part
No. Number

Description

54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103

Key, 1/4 x 1/4 x 2"
Hex Socket Set Screw, 5/16-18 x 3/8"
Pulley, Engine Pump Drive (Incl. 55)
Clutch, Electric (Ogura)
Flatwasher, 7/16 (.469 x 1.75 x .25)
Lockwasher, 7/16"
Bolt, Hex Head 7/16-20 x 2.75"
Hex Locknut, Elastic Stop 5/16-18
Backing Plate, Clutch Stop
Rubber Pad, Clutch Stop
Heatshield, Muffler
Bolt, Hex Head 5/16-18 x 1-3/4"
Key, Woodruff 3/16 x 5/8"
Pulley, Pump Input
Sleeve, Idler
Ring, Retaining, 1-9/16 Internal
Belt, Pump Drive
Pulley, Idler-Traction Drive (Incl. 68,69,72)
Bearing, Idler Pulley
Spacer, Idler
Pump Idler Arm (includes items 76, 79)
Idler Pivot Base
Bushing, Oillube
Flatwasher, 3/4"
Ring, Retaining, 3/4" Ext. "E"
Grease Fitting
Hex Nut, Jam 3/8-16
Bolt, Hex Head 3/8-16 x 3-1/4"
Spring, Pump Drive Idler
Serr. Fl. Hex Nut, 3/8-16
Cotter Pin, 5/32 x 1.50"
Bolt, Hex Head 3/8-16 x 5"
Socket Head CPSCR, 1/2-13 x 1-1/4"
Lockwasher, 1/2"
Flatwasher, 1/2 (.516 x .938 x .105)
Pump, Sundstrand
Bracket, Oil Tank Support
Bolt, Hex Head 3/8-16 x 1-3/4"
Washer 2" OD, 3/8 ID, 16 Ga.
Carriage Bolt, 1/4-20 x 3/4"
Guard, Pulley
Gusset, Battery Box
Support, Battery Box
Carrage Bolt, 5/16-18 x 1"
Wire Loom, .75" I.D.
Rubber Pad
Fuel Hose, Order by the inch
Clamp, Fuel Hose
Bolt, 1/2-13 x 2.50"
Nut, 1/4-20 Elastic Stop

04063-08
04012-04
48792
461397
04041-28
04030-05
04102-05
04021-10
422533
481716
481641
04001-12
04063-12
48581
43117
04050-06
48854
46370
48102
43063
46327
45037
48100-05
04041-08S
04050-02
48114-04
04020-12
04001-62
48929
04019-04
04061-04
04001-47
04015-03
04030-06
04041-04
481100
421520
04001-21
04041-10
04003-02
421523
421521
421705
04003-04
48030-10
48661
48058
48059-01
04001-52
04021-08

UPPER HYDRAULICS
12

7
6
5
4

5
13
11
2
3
9
12
10

A
14

16
23
24
22
14

A
9

19
21
18
3

SGB027

UPPER HYDRAULICS
Ref. Part
No. Number

Description

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

Tank, Hydraulic
Cap, Hydraulic Tank
Hose, Pump to Oil Cooler
Hose, Oil Cooler to Tank
Clamp, Hose
Coupling, Flare Swivel
Tube, Union
Oil Cooler Assembly
Carriage Bolt, 5/16-18 x 3/4"
Bracket, Oil Cooler
Elbow, 90 Degrees
O-Ring
Coupling Flare Swivel
Serr. Fl. Hex Head Nut, 5/16-18
Brace, L.H. Cooler Support
Brace, R.H. Cooler Support
Elastic Stop Nut, 1/4-20
Serr. Fl. Hex Head CPSCR, 1/4-20 x 3/4"
Strap, Oil Tank
Filler Neck Insert
Hose, 1/4" Pushlock, Order by the inch
Clamp
Bushing
90 Degree Elbow

48711
481164
48634
48942
48136-04
48936-01
48572-05
48645
04003-12
421279
48350-05
48603-02
48936-02
04019-03
421280
421281
04021-08
04017-05
421288
481507
48482
48059-01
48309
48939

LOWER
LOWER HYDRAULICS

21
13

1
20
A

28
27

G
F

9
17
15

15
5

3
29

D
D

14
32

13
8

26
26

25
26

19
19

5
F

26
I

E
J

17
33

20
4
18
20

LOWER HYDRAULICS
Ref. Part
No. Number

Description

1
2
3
4
5
6
7
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

Capscrew, 1/4-20 x1/2 Serr. Fl. Hex Head
Filter Head
Filter, Spin-On Lube
Hose Assembly
Hose Assembly
Elbow, 90 Degrees
Hairpin Cotter
Lever, Dump Valve
Connector, Flare Swivel with Hose Barb
Hose Clamp
Hose, 1/4 Pushlock, Order by the inch
Hose, 1/4 Pushlock, Order by the inch
Hose Clamp
Tee Union, Pushlock Hose
Hose, 1/4 Pushlock, Order by the inch
Hose, Dump Valve
Elbow, 90 Deg.
Inlet Hose, 3/4" ID
Tee, 1/2" Run
Motor Hose
Hose, Pump To Oil Cooler
Coupling, Flare Swivel
Coupling, Flare Swivel With Barb
Tube Union
O-Ring Bushing
O-Ring
O-Ring
O-Ring
Cap
Tee, JIC to O-Ring
Hose, Order by the inch
Compression Fitting
Elbow, 90 Deg.

04017-04
48462-02
48758
48991
48688
48350-03
04062-01
44088
48353-02
48136-04
48482
48482
48059-01
48935-01
48482
48853
48350-05
48856
48937-01
48905
48634
48936-01
48936-02
48572-06
48938-01
48603-02
48603-03
48603-04
48571-03
48810-02
48602
48911-01
48350-12

CONTROL LINKAGE
CONTROL
LINKAGE

10
12
11

14
15
17

16
18
17
4
3

7
6
13

5
11

8
30

2
28

10
15
11

sgb011

CONTROL LINKAGE
Ref. Part
No. Number

Description

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

Control Linkage, Bellcrank (Includes 30, 31)
Flatwasher, 5/16 (.375 x .875 x .083)
Bolt, Hex Head 5/16-18 x 2-3/4"
Bolt, Hex Head 3/8-16 x 1"
Flatwasher, 3/8 (.406 x .812 x .065)
Sleeve, Pump Control Link
Link, Speed Control
Hex Locknut, 3/8-16
Control Arm, Pump
Carrage Bolt,RH SH SQNK 3/8-16 x 1-1/2"
Flatwasher, 3/8 (.391 x .938 x .105)
Rod End, RH Female THD 3/8-24
Hex Locknut, Elastic Stop 3/8-16
Hex Nut, 3/8-24
Control Rod
Bolt Hex Head, 3/8-24 x 6-3/4"
Bushing, Spring Keeper
Spring, Neutral Return
Retainer, Neutral Spring
Carrage Bolt, 5/16-18 x 1"
Serr. Fl. Hex Nut 5/16-18
Number Not Used
Bolt, Hex Head 1/4-20 x 1-1/4"
Hex Locknut, Elastic Stop 1/4-20
Hex Locknut, Elastic Stop 5/16-18
Sleeve, Control Arm
Cotter Pin, 3/32 x .75"
Clevis, Pump Control
Pin, Clevis 3/8"
Greese Fitting, 1/4-28 Self Tap
Bushing, Bronze

46328
04040-15
04001-13
04001-19
04040-05
43212
42658
04021-05
45485
04003-05
04041-07
48464
04021-09
04020-14
44044
48512
43257
48463
421148
04003-04
04019-03
**
04001-59
04021-08
04021-10
43110
04061-02
48343-04
04064-02
48114-05
48100-04

INSTRUMENT
PANEL AND
ANDELECTRICAL
ELECTRICAL
COMPONENTS
INSTRUMENT PANEL
COMPONENTS
B

21 C

2
3

E
F

13
10

18 16

9
14

PTO Switch
Connector

1
20
21
35
21
23
34

24
26
27
22

31
29

32
33

31
32

STHM99IP&E

INSTRUMENT PANEL AND ELECTRICAL COMPONENTS
Ref. Part
No. Number

Description

1
2
3
4
A
B
C
5
D
E
F
6
7
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

Instrument Panel (includes Decal)
Blade Fuse, 20 amp.
Decal, Instrument Panel
Hour Meter (includes Bracket and Hardware A, B, C)
Hour Meter Bracket
Lockwasher, #10 Ext. Tooth
Hex Nut, 10-24
Ammeter (includes Bracket and Hardware D, E, F)
Ammeter Bracket
Lockwasher, #10 Int. Tooth
Hex Nut, #10-32
Phillips Rd. Head Screw, #10-32 x 1-1/2"
Bracket, Fuse Holder
Elastic Stop Nut, #10-32
Carriage Bolt, 5/16-18 x 3/4"
Phillips Washer Head Screw, #10-32 x .50"
Keyswitch
Lockwasher, 5/8 Int. Tooth
Nut, Special 5/8-32
Ignition Key and Ring Assy.
Choke Control
Throttle Control
Lockwasher, #10 Ext. Tooth
Hex Nut, #10-32
Switch, PTO
Wire Harness With Relay
Serr. Fl. HH Nut, 5/16-18
Battery (Not sold through Scag)
Bolt, Hex head 1/4-20 x 1/2"
Hex Nut 1/4-20
Wire Harness, STHM
Lockwasher 5/16 Int. Tooth
Engine, 23 HP Kohler CV(Spec PS-75523)
Switch, Parking Brake
Switch, Foot Safety
Clutch, Electric
Carriage Bolt, 5/16-18 x 3/4"
Wireloom
Locknut, Elastic Stop 5/16-18
Battery Cable, 36" Black
Battery Cable, 25" Red

461360
48298
482289
48023
*
*
*
481755
*
*
*
04010-11
42413
04021-01
04003-12
04010-01
48798
*
*
48017-02
482315
48879
04031-01
04020-01
483162
481275
04019-03
482700
04001-44
04020-02
481683
04031-09
481776
481474
481476
461397
04003-12
48030-09
04021-10
48029-15
48029-13

RIDER FRAME ASSEMBLY
RIDER FRAME ASSEMBLY
15
12

14
16

13
67,68
17
10
54

7
21

22
5

23
8

42
24

3
62

2
63

25
26

65
1
42

27
43

41
40

28
64

44
31
45

47
66

55 52

60
45

57
55

2
58

39
38

52
55
53

37
STHM99RFA

37 A

34 33 32

RIDER FRAME ASSEMBLY
Ref. Part
No. Number
1
2
3
4
5
6
7
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

46715
48100-01
04050-03
04021-10
04040-15
46029
48159
04001-12
482119
482111
482108
482105
482107
04019-03
46570
04003-05
04003-03
421342
42482
04019-04
42026
04001-83
42366
04050-05
48100-02
45008
04001-32
*
*
45035
04021-13
04001-40
43020-01
481897
481896
481895

Ref. Part
No. Number Description

Description
Steering Frame (includes Bshgs and Fittings)
Bronze Bushing, 7/8 ID x 1.0 Flanged
Retaining Ring, 7/8 external
Hex Nut, Elastic Stop 5/16-18
Flat Washer, 5/16 (3/8 x 7/8 x 13 ga.)
Steering Handle (includes item 7)
Grip
Bolt, Hex Hd., 5/16-18 x 1-3/4"
Seat Assy. (includes items 10 thru 13,54)
Cushion Assembly
Arm Pad - R.H.
Seat Back Cushion
Arm Pad - L.H.
Serr. Fl. HH. Nut, 5/16-18
Seat Adjuster Track
Bolt, RDHD Carr. 3/8-16 x 1-1/2 (52" & 61")
Bolt, RDHD Carr. 3/8-16 x 2.0" (72")
Seat Plate
Ballast, Seat Mount (72" cutter deck only)
Serr Fl. Hex Nut, 3/8-16
Seat Spring
Bolt, Hex Hd., 7-16-14 x 3-1/2"
Reinforcement, Seat Spring
Retaining Ring, 1-1/8" external
Bushing, Oilite - 1-1/8 ID x 1.0 Flanged
Rear Wheel Pivot
Bolt, Hex Hd., 3/8-16 x 1-1/4"
Hex Jam Nut, 3/8-24
Lock Washer, 3/8 Internal Tooth
Rear Wheel Yoke
Hex Elastic Stop Nut, 5/8-11
Bolt, Hex Hd. 5/8-11 x 9"
Spacer, Rear Wheel, short
Seal, Grease
Bearing Cone
Bearing Cup

36
37
37A
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68

481894
48005
481893
43021
43020-02
48828
45606
48114-04
04021-11
04010-17
04019-02
481056
04021-08
481476
04001-02
45009
04050-02
48100-06
45502
04010-22
04041-08
45506
04065-01
48100-03
45488
45256
04001-37
48208
48100-04
04040-13
44028
04021-07
482109
482110

Rim Only
Rear Wheel Assy. (includes items 33-36, 37A)
Tire Only
Sleeve, Rear Wheel
Spacer, Rear Wheel
Cable, Steering (includes Hardware)
Pedal, Foot Safety Switch
Grease Fitting
Hex Elastic Stop Nut, 7/16-14
Screw, Phillips flat hd #10-32 x 3/4"
Serr. Fl. Hex Nut, 1/4-20
Spring, Foot Safety Switch
Hex Nut, Elastic Stop Lock, 1/4-20
Switch, Foot Safety
Bolt, Hex Hd., 1/4-20 x 1-3/4"
Steering Shaft
Retaining Ring 3/4 Ext. “E”
Bushing, Oilite - 3/4 ID x 1.0
Foot Pedal
Screw w/washer, 1/4-20 x .75"
Flat Washer, 3/4 x 1-1/4 x 16 Ga.
Foot Pedal Arm
Pin, Drive Lock 3/16 x 1-1/4"
Bushing, Oilite - 3/4 x .50 Flanged
Sulky Mtg. Brkt. L.H.
Sulky Mtg. Brkt. R.H.
Bolt, Hex Hd., 1/2-13 x 5-1/2"
Pulley, Winch Cable
Bushing, Oillube - 1/2 ID x .56
Flat Washer, 1/2 (.562 x 1.375 x .109)
Retainer, Winch Cable
Hex Elastic Stop Nut, 1/2-13
Arm Rest Bracket, Left Hand
Arm Rest Bracket, Right Hand

BRAKE LINKAGE

8
Deck Weldment

5
3
10
2

6
14

7
6

10
11
9
15
24
11

5
12

10
23

6
6

21
20

4
16
17
SGB050

BRAKE LINKAGE
Ref. Part
No. Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

04019-04
04021-05
43032
04062-01
04001-32
43212
421338
48342
45504
04041-07
04021-09
04003-11
04001-21
421339
04020-12
43260
04017-27
45647
44085
48881
48880
48045
04070-03
04020-04

Description
Serr. Fl. HH Nut, 3/8-16
Hex Locknut, 3/8-16
Swivel
Hairpin Cotter (.094 x 1.62)
Hex Head Bolt, 3/8-16 x 1-1/4"
Sleeve, Hydro Linkage
Link, Cam
Grip, Parking Brake
Handle, Parking Brake
Flat Washer, 3/8 (.391 x .938 x .105)
Hex Nut, Elastic Stop 3/8-16
Carriage Bolt, 3/8-16 x 1-1/4"
Hex Head Bolt, 3/8-16 x 1-3/4"
Lever, Brake
Hex Jam Nut, 3/8-16
Washer, Neutral Lock
Serr. Fl. HH CPSCR, 3/8-16 x 1"
Bracket, Neutral Lock
Rod, Neutral Lock
Cable Assembly, Parking Brake R.H.
Cable Assembly, Parking Brake L.H.
Cable Winch
Eye Bolt, 3/8-16 R.H.
Hex Nut, 3/8-16

ELECTRICAL WIRING HARNESS
481683
MOWER
CLUTCH
NEGATIVE
HOURMETER

POSITIVE
HOURMETER
ENGINE GND
BLACK
BLACK

BLUE

BRAKE
INTERLOCK

RED
BLACK

RED

BLACK

YELLOW

FOOT PEDAL
INTERLOCK
KEY
SWITCH

GREEN

YELLOW W/RED STRIPE

FUSES

BLACK W/RED STRIPE
RED

BLACK W/RED STRIPE

WHITE

POSITIVE
AMMETER
GREEN

NEGATIVE
AMMETER

WHITE

GREEN
YELLOW

TO ENGINE
MOWER ENGAGEMENT
PTO SWITCH CONNECTOR

481683
STARTER
SOLENOID

WIRE HARNESS WITH RELAY
PART NO. 481275
To Engine
Ground

RELAY
BLACK
GREEN

To Starter

BLUE
RED

To Blue Wire
From Engine

SC481275

To Starter
Red Battery
Cable Post

WINCH LIFT SYSTEM

5
4

6
7

2
14
12

22
13

21
Steering
Frame

25
17

Ref. Part
No. Number
1
2
3
4
5
6
7
8
9
10
11
12
13

48043
204803
404409
205167
205055
404166
204363
42127
48045
04021-03
304753
203161
204803

sgb008

Ref. Part
No. Number Description

Description
Winch Assembly (Incl. 1-7, 11-13, 15-23)
Locknut, 7/16-14
Ratchet Pawl
Ratchet Bolt
Flatwasher
Ratchet Spacer
Ratchet Spring
Cable Guide
Winch Cable Assembly
Hex Locknut, 1/4-28
Winch Reel
Reel Shaft
Hex Locknut, 3/8-16

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

48044
205015
204364
208328
404163
404164
204362
204012
205116
304758
04017-27
04019-04

Winch Handle
Handle Nut
Handle Spring
Shaft Bushing
Pressure Washer
Ratchet Wheel
Pressure Plate
Shaft Bushing
E-Ring
Drive Shaft
Serr. Flg. HH Capscrew, 3/8-16 x 1"
Serr. Flg. HH Nut, 3/8-16

REPLACEMENT DECALS & INFORMATION

2, 2a, 2b

10, 11
12

Ref. Part
No. Number

Description

Ref. Part
No. Number

Description

1
2
2a
2b
3
4
5

Decal, Heavy Duty Commercial
Decal, Scag Logo ( Cutter Deck)
Decal, Scag Logo (Battery Box Front)
Decal, Scag Logo Seat Back
Decal, Danger-Spinning Blades
Decal, Warning-Rotating Blades
Decal, Patent

6
7
8
9
10
11
12

Decal,
Decal,
Decal,
Decal,
Decal,
Decal,
Decal,

481971
48314
48968
48825
482285
482286
483044

482289
481039
48993
48404
483201
481956
482817

Instrument Panel
Warning-Belt Cover
Dump Valve
Metalcraft-Made In USA
61 Velocity Plus
72 Advantage
Height of Cut

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, 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).
* Cutter Spindle Assemblies have a Limited Warranty for three years (Parts and labor 1st and 2nd year;
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, 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.

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.4
Linearized                      : No
Create Date                     : 2005:10:24 15:59:57Z
Modify Date                     : 2005:10:24 11:20:43-05:00
Page Count                      : 45
Creation Date                   : 2005:10:24 15:59:57Z
Mod Date                        : 2005:10:24 11:20:43-05:00
Producer                        : Acrobat Distiller 5.0.5 (Windows)
Author                          : prohloff
Metadata Date                   : 2005:10:24 11:20:43-05:00
Creator                         : prohloff
Title                           : 2006 STHM Operators Manual Cover.pmd

EXIF Metadata provided by EXIF.tools

Scag Power Equipment Lawn Mower Sthm Users Manual 2006 Operators Cover.pmd

!! Scag-26 Scag Lawn Mower Manuals - Lawn Mower Manuals – The Best Lawn Mower Manuals Collection

STHM to the manual 8696f11f-1610-439e-afcd-9d9745c01c1d

Navigation menu

Versions of this User Manual:

Views

Navigation