Scag Power Equipment SW User manual

MODEL SW
OPERATOR’S MANUAL
THIS MANUALCONTAINSTHE OPERATING
INSTRUCTIONS AND SAFETY INFORMA-
TION FOR YOUR SCAG MOWER. READING
THIS MANUAL CAN PROVIDE YOU WITH
ASSISTANCE IN MAINTENANCE AND AD-
JUSTMENT PROCEDURES TO KEEP YOUR
MOWER PERFORMING TO MAXIMUM EFFI-
CIENCY. THE SPECIFIC MODELS THATTHIS
BOOK COVERS ARE CONTAINED ON THE
INSIDECOVER. BEFORE OPERATINGYOUR
MACHINE, PLEASE READ ALL THE INFOR-
MATION ENCLOSED.
PART NO. 03189
PRINTED7/06
PRINTED IN USA
©2006
SCAGPOWEREQUIPMENT
DIVISION OF METALCRAFT OF MAYVILLE, INC.

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.
Alwaysusetheentireserialnumber listed on the serial number
tagwhenreferringtothisproduct.
Thismanualcoverstheoperatinginstructions
andillustratedparts list for:
SW32-15KAI with a serial number of C3000001 to C3099999
SW36A-15KH with a serial number of C3100001 to C3199999
SW36A-16KAI with a serial number of C3200001 to C3299999
SW48V-15KH with a serial number of C3300001 to C3399999
SW48V-16KAI with a serial number of C3400001 to C3499999
SW52V-17KAI with a serial number of C3500001 to C3599999
SW52V-18KH with a serial number of C3600001 to C3699999
FAILURE TO FOLLOW SAFE OPERATING PRACTICES
MAY RESULT IN SERIOUS INJURY.
* Keepallshields in place,especiallythegrassdischarge chute.
* Beforeperforminganymaintenanceor service, stop the machine and
removethesparkplugwireand ignition key.
* Ifamechanism becomes clogged, stoptheenginebeforecleaning.
* Keephands,feetandclothingawayfrom power-driven parts.
* Readthismanualcompletelyaswellasothermanualsthatcamewith
yourmower.
* Keepothersoff the tractor (only onepersonatatime).
* DO NOT operate on steep slopes. To check a slope, attemp to back up
it(withthe cutter deck down). If the machinecanbackupthe
slopewithoutthewheels slipping, reduce speed and useextreme
caution. ALWAYSFOLLOWOSHAAPPROVEDOPERATION.
* DONOT mow on wetgrass. Wetgrassreduces traction and steering
control.
WARNING:

TABLE OF CONTENTS
MODEL SW
I
WE SUPPORT OPE
TECHNICIAN
CERTIFICATION
SUBJECT PAGE
Introduction.................................................................................................. 1
Direction Reference..................................................................................... 1
Servicing the Engine ................................................................................... 1
Symbols....................................................................................................... 2-3
General Safety Instructions.......................................................................... 4
Signal Words ............................................................................................... 4
Before Operation Considerations ................................................................ 4-6
Operation Considerations............................................................................ 6-7
Maintenance and Storage ........................................................................... 7-8
Initial Run-In Procedures ............................................................................. 8
Mower Operation ......................................................................................... 8-9
Cutter Deck Belt Adjustments...................................................................... 9
Transmission Drive Belt............................................................................... 10
Drive Control Adjustments........................................................................... 10
Cutter Deck Adjustments ............................................................................. 10-11
Blade Height Adjustments ........................................................................... 11
Cutter Blades............................................................................................... 11
Custom-Cut Baffle Adjustment..................................................................... 12
Engine Oil Maintenance .............................................................................. 13
Engine Air Cleaner Maintenance................................................................. 13
Cleaning The Machine ................................................................................ 13
Lubrication and Maintenance Chart ............................................................ 14
Troubleshooting Cutting Conditions ............................................................ 15-17
Technical Specifications .............................................................................. 18-19

II
TABLE OF CONTENTS
(CONTINUED)
SUBJECT PAGE
Illustrated Parts List
SWM-32", 36" Cutter Deck .......................................................................... 20-21
SWM-48", 52" Cutter Deck .......................................................................... 22-23
Notes .......................................................................................................... 24
Caster Assembly ......................................................................................... 25
Engine Deck................................................................................................ 26-27
Handle Assembly ........................................................................................ 28-29
InstrumentPanel.......................................................................................... 30
Peerless Transmission................................................................................. 31
Engine Deck Wire Harness ......................................................................... 32
Handle Wire Harness .................................................................................. 32
Wire Harness Adapter-Kawasaki (15 HP, 16 HP & 17 HP).......................... 33
Replacement Decals ................................................................................... 34-35
WarrantyStatement.........................................................................InsideBackCover

1
GENERAL INFORMATION
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.
If additional information or service is needed, contact
your Scag Power Equipment Dealer.
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.
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.
USE OF OTHER THAN ORIGINAL SCAG
REPLACEMENT PARTS WILL VOID THE
WARRANTY.
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. Using unapproved
attachments, (especially "stand-up" riding attachments)
may be hazardous.
GC-F4 (p/n 9055)
GC-4D (p/n 9054)
Mulch Plate (p/n 9258, 9286, 9287)
Hurricane Mulch System (p/n 9263, 9283, 9284)
Cup Holder (p/n 9240)
Hour Meter (p/n 48023)
Turbo Baffle (p/n 424208)
Blade Buddy (p/n 9212)
SCAG APPROVED ATTACHMENTS AND
ACCESSORIES:
SERVICING THE ENGINE
The detailed servicing and repair of the engine is not
covered in this manual; only routine maintenance and
general service instructions are provided. For service of
the engine during the limited warranty period, it is
important to contact your Scag dealer or find a local
authorized servicing agent of the engine manufacturer.
Any unauthorized work done on the engine during the
warranty period may void your warranty.
DIRECTION REFERENCE
The “Right” and “Left”, “Front” and “Rear” of the
machine are referenced from the operator’s right and left
when standing in the normal operating position and facing
the forward travel direction.
TM
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.
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.
WARNING
FALLING HAZARD
USE ONLY SCAG APPROVED
RIDING ATTACHMENTS
SEE OPERATOR'S MANUAL
481109

2
TransmissionChoke
On/Start Spring Tension on Idler
Oil
Off/Stop
SYMBOL DESCRIPTION
SYMBOL DESCRIPTION
ISO Symbols
SpinningBlade
48071S
Parking Brake
FallingHazard Thrown Object

3
Slow
Fast
Cutting Element - Engage
Cutting Element - Basic Symbol
Cutting Element - Disengage
Continuously Variable - Linear
Read Operator's Manual
Keep Bystanders Away
Pinch Point
481039S
SYMBOL DESCRIPTION SYMBOL DESCRIPTION
Hourmeter/Elapsed Operating Hours
Thrown Object Hazard

4
SAFETY INFORMATION
GENERAL SAFETY INFORMATION
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.
READ THIS OPERATOR’S MANUAL BEFORE
ATTEMPTING TO START YOUR MOWER.
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 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.
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, WI 53050 or contact us via the Internet at
www.scag.com. The manual for your 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.
If the operator(s) or mechanic(s) cannot read English or
Spanish, it is the owner's responsibility to explain this
material to them.
Signal Word:
The signal word 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.
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.
Your safety and the safety of others depends
significantly upon your knowledge and understanding of
all correct operating practices and procedures of this
machine.
BEFORE OPERATION
CONSIDERATIONS
1. Become familiar with the safe operation of the
equipment, operator controls, and safety signs.
2. NEVER allow children or untrained people to
operate or service this machine.
3. DO NOT allow children to ride or play on the
machine, it is not a toy.
4. Clear the area to be mowed of objects that could be
picked up and thrown by the cutter blades.

5
BEFORE OPERATION CONSIDERATIONS
(CONT'D)
5. Always wear appropriate clothing. Loose fitting
clothing, long hair or jewelry 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.
8. Before attempting to start the engine, shift the
transmission into neutral, move the blade engagement
switch to the OFF position, and move the neutral
latches to neutral.
WARNINGWARNING
DO NOT OPERATE WITHOUT DISCHARGE CHUTE, MULCHING
KIT, OR ENTIRE GRASS CATCHER INSTALLED
9. The discharge chute must always be installed and in
the down position on the side discharge cutter deck
except when the Scag optional grass catcher or
mulching plate are properly installed.
Always wear hearing protection. Operating
this machine over prolonged periods of time
can cause loss of hearing.
WARNING:
6. 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.
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 and the transmission is in neutral. The
systemshuts off the engine if the operator releases
the operator presence levers with the deck drive
engaged and/or the transmission not in neutral.
Never operate equipment with the interlock system
disconnected or malfunctioning.
WARNING:
7. Fill the fuel tank with clean, fresh gasoline, with a
minimum octane rating of 87, and up to a maximum
of 10% ethanol. To avoid personal injury or property
damage, use extreme care in handling gasoline.
Gasoline is extremely flammable and the vapors are
explosive.
B. Use only an approved gasoline container.
A. Keep flammable objects (cigarettes, matches,
etc.), open flames and sparks away from the fuel
tank and fuel container.
C. DO NOT add fuel to a running or hot engine.
Allow the engine to cool for several minutes
before adding fuel.
D. Never fuel the machine indoors or in an enclosed
trailer.
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
beforefilling.
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.
H. Keep the nozzle in contact with the rim of fuel
tankor container opening at all timesuntil fueling
is complete. Do not use a nozzle lock-open device.
I. If fuel is spilled on clothing, change clothing
immediately.
J. Replace gas cap and tighten securely.

6
BEFORE OPERATION CONSIDERATIONS
(CONT'D) B. Be alert for holes, rocks, roots and other hidden
hazards in the terrain. Keep away from any
dropoff. Beware of overhead obstructions (low
limbs,etc),undergroundobstacles(sprinklers,
pipes, tree roots, etc.). Cautiously enter a new
area. Be alert for hidden hazards.
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 not back up the slope without the
wheels slipping, do not operate the machine on this
slope.
ALWAYS travel across the slope whenever possible.
Never up and down the slope.
Reducespeedand usecautionwhenturning,operating
onslopes, slickorwet surfaces. Allowextradistance
to stop.
Operate the machine smoothly, no sudden turns,
starts or stops on a slope.
ALWAYS be sureofyour footing. Keepa firm holdon
thehandles and walk---neverrun.
DONOT mowneardrop-offs,ditchesorembankments.
Themachine couldsuddenlyroll overif a wheelgoes
over the edge or if the edge caves in.
DO NOT permit untrained personnel to operate the
machine.
ALWAYS FOLLOWOSHAAPPROVED OPERATION
7. Disengage power to the 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.
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.
10. 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.
11. Check the blade mounting bolts at frequent intervals
for proper tightness.
OPERATION CONSIDERATIONS
3. Be sure the interlock switches are functioning
correctly.
2. Start the engine when the neutral latches are in the
neutral lock position, the cutter blades are disen-
gaged, and the transmission is in neutral.
1. 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.
4. 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 the machine off if a
child enters the area.
5. DO NOT carry passengers.
6. Using the machine demands attention. To prevent
lossofcontrol:
A. Mow only in daylight or when there is good
artificiallight.
8. Disengage power to the cutter deck before crossing
roads, walks or gravel drives. Stop blades if not
mowing.
9. Shut the engine off and wait until the blades come to
a complete stop before removing the grass catcher
container.
10. Never raise the cutter deck while the blades are
rotating.

7
OPERATION CONSIDERATIONS
(CONT'D)
16. DO NOT operate the machine under the influence
of alcohol or drugs.
19. Do not change the engine governor settings or
overspeed the engine. See the engine operator's
manual for information on engine settings.
20. Never leave the machine running unattended.
17. Use care when loading or unloading the machine
onto a truck or trailer.
18. Use care when approaching blind corners, shrubs,
trees, or other objects that may obscure vision.
11. Keep hands and feet away from cutter blades and
moving parts. Contact can injure.
15. Take all possible precautions when leaving the
machine unattended, such as disengaging the mower,
stopping the engine, and removing the key.
13. DO NOT direct the discharge of material toward
bystanders or allow anyone near the machine while
inoperation.
12. DO NOT operate without the side discharge chute
installed and in the down position.
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 wire, 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.
ROTATING BLADES
NEVER PUTYOUR HANDS INTOTHE DISCHARGE
CHUTEFOR ANY REASON!
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.
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.
8. The engine must be shut off before checking the oil
or adding oil to the crankcase.
MAINTENANCE AND STORAGE
1. Allow only trained personnel to service the machine.
2. Park the machine on level ground.
4. Disengage drives, lower implement, stop engine and
remove key or disconnect spark plug wire(s) 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. 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.
7. Clean grass and debris from cutting units, drives,
mufflers, and engine to help prevent fires. Clean up
oilor fuel spillage.
5. 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.
6. Keep all nuts, bolts and screws tight, to ensure the
machine is in safe working condition. Check the
blade mounting bolts frequently to be sure they are
tight. Replace all worn or damaged decals.

8
MAINTENANCE AND STORAGE (CONT'D)
6. 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.
9. Let the engine cool before storing.
INITIAL RUN-IN PROCEDURES
(FIRST DAY OF USE OR APPROXI-
MATELY 10 HOURS)
4. Check for loose hardware. Tighten as needed.
3. Check the tires for proper pressure.
Caster Wheels Flat Free
Drive Wheels 12psi.
2. Check the steering control rods for neutral adjust
ment (See Adjustments, page 10).
1. Check the belts for proper tension at 2, 4 and 8
hours. Adjust as needed.
5. Check the safety switches for proper adjustment:
* The engine will not start if the PTO switch is on.
* The engine will not start if the machine is not in
neutral.
* The engine should start if the machine is in neutral
and the PTO engagement switch is off.
-NOTE-
Use gasoline with an octane rating no less than
87 and a maximum of 10% ethanol.
MOWER OPERATION
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.
* Fill the fuel tank with clean, fresh, lead-free
gasoline.
* Open the fuel valve on the bottom of the fuel
tank.
* The blade clutch switch must be in the OFF
position.
* The transmission must be in NEUTRAL.
* The key switch must be on.
* The neutral latches must be in the neutral lock
position
* The operator's presence levers must be released.
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. Engage the cutter blades by depressing the operator
presence levers and pulling the blade clutch switch
into the ON position. Push the switch to the OFF
position to disengage the cutter blades.
10. DO NOT store the machine near an open flame.
11. Shut off fuel while storing or transporting.
12. Always store gasoline in a safety-approved, red
container.
13. Use jack stands to support components when
required.
14. Carefully release pressure from components with
stored energy.
15. Use care when checking blades. Wrap the blade(s)
or wear gloves and use caution when servicing
blades. Only replace or sharpen blades. NEVER
straighten or weld blades.

9
MOWER OPERATION (CONT'D)
390S0138
PULL UP TO ENGAGE
PUSH DOWN TO DISENGAGE
-NOTE-
When 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 mower comes up to
speed. For best equipment life, engage the
clutch with the engine at 3/4 throttle, not under
full load.
7. When the steering brake levers are released, the
machine will travel straight. To make a right turn,
squeeze the RH lever. To turn left, squeeze the LH
lever.
8. TO STOP, squeeze both levers, lock the neutral
latches, and shift the transmission into neutral.
6. While squeezing the steering brake levers with both
hands, release both neutral latches.
-NOTE-
Top speed is suggested only for transport!
5. Shift the transmission into gear for the desired
mowing speed.
WARNING:
To avoid serious bodily injury and damage to the
transmission, the machine must be at a full stop
before shifting between gears or shifting between
forwardandreverse.
1. Remove the belt cover.
2. Adjust the cutter deck drive belt using a belt tension
gauge. Adjust the belt so that the belt moves 1/2"
with 10 pounds of pressure. Adjust the tension by
tightening or loosening the J-bolt nut. ( See Figure 1).
SC400G
BELT
WASHER
"J" BOLT
NUT
CUTTER DECK DRIVE BELT TENSION
ALIGNMENT IDLER - L.H.
END OF L-SHAPED
BRACKET
Figure 1. Deck Drive Belt Adjustment
-NOTE-
Due to initial belt stretch and to prevent the belt
from slipping, check this adjustment after the
first 2 hours, 4 hours and 8 hours of operation.
3. Adjust the RH blade drive belt using a belt tension
gauge. Adjust the belt so that the belt moves 1/2"
with 10 pounds of pressure. Adjust the tension by
tightening or loosening the J-bolt nut. (See Figure 2
& 3).
Figure 2. Cutter Deck Belt Adjustment R.H.
WASHER
NUT
SC401G
BELT
CUTTER DECK BELT ADJUSTMENTS
Stop engine and remove the key from the ignition
beforemakinganyadjustments.Waitforallmoving
partstocometoacompletestopbeforebeginning
work.
CAUTION:

10
CUTTER DECK BELT ADJUSTMENTS
(CONT'D)
2. Adjust the steering brake rods so that the brakes do
not apply until the steering levers are pulled tight to
the handles. When the steering levers are locked in
the neutral position the machine should move freely.
CUTTER DECK ADJUSTMENTS
Due to the many cutting conditions that exist, it is difficult
to suggest a cutter deck setting that will work for every
lawn. There are two adjustments that can be made on
these decks, pitch and height.
PITCH is the angle of the blades (comparing front to
rear).
HEIGHT is the nominal distance the blade is off of the
ground. This measurement is made with the blades
pointed side to side and distance is measured between
cutting tip and ground. (Also see Blade Height Adjust-
ment, next page).
Changes to the cutting height can be achieved by reposi-
tioning the cutter deck. (This adjustment will also effect
the pitch of the deck). There are three available positions
(See Figure 5).
TRANSMISSION DRIVE BELT
Adjust the transmission drive belt so that there is about a
3/16" deflection with 10 lbs. of pressure. Adjust by
looseningidlerpulleymountingboltandslidingtheidler
left or right to change belt tension.
4. Replace the belt cover.
DISCHARGE
AREA
CUTTER DECK
ADJUSTMENT
IDLER
BELT TENSION
ADJUSTMENT IDLER
CHECK BLADE DRIVE
BELT TENSION HERE
SC402G
Figure 3. Cutter Deck Belt
DRIVE CONTROL ADJUSTMENTS
Figure 5. Cutting Height Adjustment
Figure 4. Steering Control Rod Adjustment
-NOTE-
Operator presence lever removed for clarity.
Never operate equipment with the interlock system
disconnected.
Neutral
Latch
Steering
Brake Lever
Neutral Lock
Position
Drive Position
3/4"
SC404GB0
5
SC405G-06
LOW CUT (1 3/4" to 3")
HIGH CUT
(3 1/4" to 4 1/2")
MID RANGE
(2 1/2" to 3 3/4")
CUTTER DECK HEIGHT ADJUSTMENT
1. Adjust the steering control rods so that there is
approximately 3/4" clearance from the bottom of the
rod to the bottom of the neutral latch slot when in the
drive position. (See Figure 4).

11
BLADE HEIGHT ADJUSTMENT
Adjusting the blade height can be done by moving any
number of the five smaller 1/4" spacers on the blade
mounting bolts to the top of the spindle shaft or below the
spindleshaft.
-NOTE-
All blades should be positioned equally.
Caster spacers also can be repositioned to change cutting
heights and to change the pitch of the deck. (See Figure
6).
Pin
Spacers
2002SGB005
Figure 6. Caster Wheel Spacers
For best cut and discharge, a minimum of three spacers
should be installed between the blade and the spindle
(See Figure 7).
WARNING:
Bladeshaveasharpcuttingedge.Wearproper
eyeprotection andprotectiveglovesorwrap
bladeswithprotectivematerialwhenremoving,
sharpeningand installing blades.
Figure 7. Blade Spacers
2002 SC407G
CUTTER DECK ADJUSTMENTS
(CONT'D)
-NOTE-
Dress 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, vibra-
tion and premature wear of spindle assembly can
occur. See your authorized Scag dealer for
blade balancing or special tools, if you choose to
balance your own blades.
CUTTER BLADES
Do not sharpen beyond 1/3 of the width of the blade.
(See Figure 8).
Figure 8. Blade Sharpening
SGB033
Angle Blade Back
Do Not Cut In
X Must NOT Exceed
1/3 Blade Width
X
30

12
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.
A. 3" Position - baffle is installed using the top set of
holes on the front baffle welded inside the cutter
deck. (See Figure 10). The Velocity-Plus and
Advantage cutter deck will deliver the best quality-
of-cut in very tall, wiry, tough to cut grass.
B. 3-1/2" Position (factory setting for Advantage cutter
decks) - baffle is installed using the middle set of
holes on the front baffle welded inside the cutter
deck. (See Figure 11). 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.
C. 4" Position (factory setting for Velocity-Plus cutter
decks) - baffle is installed using the bottom set of
holes on the front baffle welded inside the cutter
deck. (See Figure 12). Placing the baffle in the 4"
setting will enhance fall cutting (leaf pickup) and
reduce cutter deck "blowout".
Figure 12. 4" Custom-Cut Baffle Position
BOTTOM SET OF HOLES
FOR 4" SETTING
2004 CCB - 4" Setting
CARRIAGE BOLT
ELASTIC STOP
NUT
2. Move the Custom-Cut Baffle to desired position. (See
Figures 10 through 12 for position).
3. Reinstall the mountinghardwareasshown.(See Figures
10 though 12). Torque hardware to 39ft.lbs.
Figure 10. 3" Custom-Cut Baffle Position
Figure 11. 3-1/2" Custom-Cut Baffle Position
TOP SET OF HOLES
FOR 3" SETTING
2004 CCB - 3" Setting
CARRIAGE BOLT
ELASTIC STOP
NUT
MIDDLE SET OF HOLES
FOR 3-1/2" SETTING
2004 CCB - 3-1/2" Setting
CARRIAGE BOLT
ELASTIC STOP
NUT
Figure 9. Custom-Cut Baffle
2004 CCB
MOUNTING
HARDWARE MOUNTING
HARDWARE
Hardware location used in the illustrations are for
reference only. Location of hardware may vary
depending on the cutter deck size.
-NOTE-
TO ADJUST THE CUSTOM-CUT BAFFLE
HEIGHT:
1. Remove the hardware securing the Custom-Cut Baffle
to the cutter deck (See Figure 9).

13
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.
CHECKING ENGINE CRANKCASE OIL LEVEL
CLEANING THE MACHINE
1. After each use, wash the mower and cutter deck.
Use cold water and automotive cleaners. Do not use
pressure cleaners.
2. Do not spray electrical components.
3. Repair damaged metal surfaces using Scag touch-up
paint (P/N 48521) available from your authorized
Scag dealer. Wax the mower with an automotive
paint wax for maximum paint protection.
-NOTE-
In extremely dusty conditions it may be necessary
to service the air cleaner daily to prevent engine
damage.
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.
CHANGING ENGINE OIL FILTER
After the first 20 hours of operation, replace the engine
oil filter. Thereafter, replace the oil filter every 100 hours
of operation or bi-weekly, whichever occurs first. Refer
to Engine Operator’s Manual for instructions.
ENGINE AIR CLEANER
For any air cleaner, the operating environment dictates
how often the air cleaner should be serviced. Refer to
the Engine Operator’s Manual furnished with this mower
for instructions.
CAUTION:
Do not wash any portion of the equipment while it
is hot. Do not wash the engine; use compressed
air.

14
LUBRICATION & MAINTENANCE
X Check all hardware for tightness
X Checkallbelts forproperalignment
X Checkengineoillevel See engine operator's manual
X *Cleanaircleanerelement See engine operator's manual
X Check operator presence system See page 5
X Check tire pressure See page 8
X Check belt tension See pages 10 and 11
X Sharpen cutter blades See page 11
X *Cleanmower See page 13
X Change engine oil and filter See engine operator's manual
X Grease spindle bearings +USLithiumMPWhiteGrease2125
X Change engine oil See engine operator's manual
X Checkall beltsfor properalignment
X *Replaceairfilterelement See engine operator's manual
X Grease caster wheel bearings Chassis grease
X Grease drive wheel bearings Chassis grease
X Grease transmission couplers Chassis grease
X GreaseidlerbracketLH&RH Chassis grease
X Check all hardware for proper tightness More often if needed
X Grease caster wheel pivot shafts ** Chassis grease, see instructions below
X Replaceenginefuelfilter See engine operator's manual;
X Adjust air gap on electric clutch Contact your Scag dealer for information about
this maintenance procedure.
BREAK-IN
8HOURS(DAILY)
20HOURS
40HOURS(WEEKLY)
100HOURS(BIWEEKLY)
500HOURSORANNUALLY
COMMENTS
PROCEDURE
+Greasespindleuntilgreasecomesoutthereliefvalve.
CompatibleGreases: LidokEP#2(foundatindustrialshops)
RonexMP(Exxonservicestations)
ShellAlvania(Shellservicestations)
Mobilux#2(Mobilservicestations)
SuperLubMEP#2(Conocoservicestations)
* Perform these maintenance procedures more frequently under extreme dusty or dirty conditions.
**PROCEDURE: Remove grease cap, part number 481559. Remove plug, part number 482028-01, and install
standard grease zerk (p/n 48114-06). Apply grease to the fitting until new grease appears at the top of the
caster extension. Remove the grease zerk and reinstall the plug. Reinstall the grease cap. Special tool, part
number 47007, is recommended for use in the installation of the grease cap.

15
Stringers - Occasional Low engine RPM Run engine at full 3600 RPM
Blades of Uncut
Grass 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
Streaking - Strips of Dull, worn blades Sharpen blades
Uncut Grass in Cutting
Path Incorrect blade sharpening Sharpen blades
Low engine RPM Run engine at full 3600 RPM
Beltslipping 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
Width of Deck
SGB018
CONDITION CAUSE CURE
Width of Deck
SGB020
Width
of
Deck
Width
of
Deck
SGB019
Streaking - Strips of Not enough overlapping Increase the overlap of each
Uncut Grass Between between rows pass
Cutting Paths
TROUBLESHOOTING CUTTING CONDITIONS

16
CONDITION
TROUBLESHOOTING CUTTING CONDITIONS
CAUSE CURE
Sloping Ridge Across Tire pressures not equal Check and adjust tire pressure
Width of Cutting Path Wheels uneven Check and adjust tire pressure
Deck mounted incorrectly See your authorized SCAG dealer
Uneven Cut on Uneven ground May need to reduce ground speed,
Uneven Ground - raise cutting height, and/or change
Wavy Appearance, direction of cut
High-Low Scalloped
Cut, or Rough Contour
Width of Deck
SGB020
Width of Deck
SGB021
Width of Deck
SGB023
Uneven Cut on Flat Lift worn off of blade Replace blade
Ground - Wavy
High-Low Blade upside down Mount with cutting edge toward
Appearance, ground
Scalloped Cut, or
Rough Contour 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 Sharpenblade