Scag Power Equipment SWZ User manual

MODEL SWZ
OPERATOR’SMANUAL
THIS MANUAL CONTAINS THE 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. THESPECIFICMODELSTHAT THIS
BOOK COVERS ARE CONTAINED ON THE
INSIDECOVER. BEFOREOPERATINGYOUR
MACHINE, PLEASE READ ALL THE INFOR-
MATION ENCLOSED.
PART NUMBER 03056

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.
WARNING:
This manual covers the operating instructions
and illustrated parts list for:
SWZ36-14KA with a serial number of 4040001-4049999
SWZ36-15KH with a serial number of 4050001-4059999
SWZ48-14KA with a serial number of 4060001-4069999
SWZ48-15KH with a serial number of 4070001-4079999
SWZ48-17KA with a serial number of 4080001-4089999
SWZ-17KA with a serial number of 4100001-4109999
SWM-52E with a serial number of 4110001-4119999
SWM-61E with a serial number of 4120001-4129999
SWM-72E with a serial number of 4130001-4139999
Always use the entire serial number listed on the serial number
tag when referring to this product.

TABLE OF CONTENTS
SUBJECT PAGE
Introduction.................................................................................................. 1
General Safety Instructions.......................................................................... 1
Signal Words ............................................................................................... 1
Before Operating ......................................................................................... 2
While Operating........................................................................................... 2
Maintenance and Storage ........................................................................... 3
Initial Run-In Procedures ............................................................................. 4
Mower Operation ......................................................................................... 4
Cutter Deck Belt Adjustments...................................................................... 5
Cutter Deck Adjustments ............................................................................. 6
Blade Height Adjustments ........................................................................... 6
Cutter Blades............................................................................................... 7
Neutral Adjustment ...................................................................................... 7
Steering Control Rod Adjustment ................................................................ 8
Tracking Adjustment .................................................................................... 8
Parking Brake .............................................................................................. 8
Lubrication and Maintenance Chart ............................................................ 9
Troubleshooting Cutting Conditions ............................................................ 10-12
Technical Specifications.............................................................................. 13-14
Notes.........................................................................................................................15
I
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TABLE OF CONTENTS
(CONTINUED)
SUBJECT PAGE
Illustrated Parts List
SWM-36"Cutter Deck........................................................................ 16-17
SWM-48",52",61",72"CutterDecks...................................................... 18-19
EngineDeck................................................................................................ 20-21
DriveAndBrakeComponents..................................................................22-23
HandleAssembly........................................................................................ 24-25
Hydraulic Assembly.......................................................................... 26-27
Hydraulic Pump Assembly................................................................ 28-29
Engine DeckWire Harness-Kohler (Single Cyl.) & 17KA................... 30
Engine Deck Wire Harness- Kohler Command V-Twin...................... 30
HandleWireHarness-ElectricStart......................................................... 31
WireHarnessW/Relay............................................................................... 31
EngineDeckWire Harness-14 Kawasaki...............................................32
HandleWireHarness-ManualStart......................................................... 32
ReplacementDecals.................................................................................. 33-35
WarrantyStatement...............................................................InsideBackCover
II

1
SIGNAL WORDS
This symbol means “Attention! Become Alert!“Attention! Become Alert!
“Attention! Become Alert!“Attention! Become Alert!
“Attention! Become Alert!
Your Safety is Involved!"Your Safety is Involved!"
Your Safety is Involved!"Your Safety is Involved!"
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:Signal Word:
Signal Word:Signal Word:
Signal Word:
It is a distinctive word on safety decals and through-
out this manual that alerts the viewer to the existence
and relative degree of the hazard.
The signal word “DANGER” denotes that an ex-
tremely 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.
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.
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.
INTRODUCTION
Your mower was built to the highest standards in the
industry. However, the prolonged life and maxi-
mum efficiency of your mower depends on you
following the operating, maintenance and adjust-
ment 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. Please indicate the
complete model and serial number of your Scag
product.
USE OF OTHER THAN ORIGINAL SCAGUSE OF OTHER THAN ORIGINAL SCAG
USE OF OTHER THAN ORIGINAL SCAGUSE OF OTHER THAN ORIGINAL SCAG
USE OF OTHER THAN ORIGINAL SCAG
REPLACEMENT PARTS WILL VOID THEREPLACEMENT PARTS WILL VOID THE
REPLACEMENT PARTS WILL VOID THEREPLACEMENT PARTS WILL VOID THE
REPLACEMENT PARTS WILL VOID THE
WARRANTY.WARRANTY.
WARRANTY.WARRANTY.
WARRANTY.
The “Right” and “Left”, “Front” and “Rear” of the
machine are referenced from the operator’s perspec-
tive when in the normal operating position and
facing the forward travel direction.
GENERAL SAFETY INSTRUCTIONS
READ THIS OPERATOR'S MANUAL and
instructions furnished with attachments.
Perform only those maintenance procedures de-
scribed in this manual. If major repairs are ever
needed or assistance is desired, contact an Author-
ized Scag Dealer. To ensure optimum performance
and safety, always purchase genuine SCAG replace-
ment parts and accessories.
Your safety and the safety of others depends signifi-
cantly upon your knowledge and understanding of
all correct operating practices and procedures of this
machine.
WARNING:
CAUTION:

2
BEFORE OPERATING
1. Know the controls and how to stop quickly.
2. Do not allow children to operate the machine.
Do not allow adults to operate the machine
without proper instruction.
3. Remove all debris or other objects that might be
picked up and thrown by the cutter blades. Keep
all bystanders away from the mowing area.
4. Keep all shields, safety devices, and decals in
place. If a shield, safety device or decal is
defective or damaged, repair or replace it before
operating. Also, check all nuts, bolts and screws
for proper tightness, to assure the machine is in
safe operating condition.
5. Do not operate the machine while wearing
sandals, tennis shoes, sneakers or shorts. Also,
do not wear loose fitting clothing which could
get caught in moving parts. Always wear long
pants and substantial shoes. Wearing safety
glasses and safety shoes is advisable and required
by some local ordinances and insurance regula-
tions.
6. Fill the fuel tank with clean, fresh gasoline, with
a minimum octane rating of 87. Avoid spilling
gasoline. Gasoline is highly flammable, handle it
carefully.
A. Use an approved gasoline container.
B. Do not fill the tank while the engine is hot or
running.
C. Do not smoke while handling gasoline.
D. Fill the fuel tank outdoors and up to approxi-
mately 1" (25 mm) below the bottom of the
filler neck.
E. Wipe up any spilled gasoline.
7. Before attempting to start the engine, move the
speed adjustment lever into the neutral position,
move the blade engagement switch to the OFF
position, apply the parking brake, and move the
neutral latches to neutral.
WHILE OPERAWHILE OPERA
WHILE OPERAWHILE OPERA
WHILE OPERATINGTING
TINGTING
TING
1. Start the engine when the neutral latches are in
the neutral lock position, the cutter blades are
disengaged, the parking brake is on and the
speed adjustment lever is in the neutral position.
2. Do not run the engine in a confined area without
adequate ventilation. Exhaust fumes are hazard-
ous and could possibly be deadly.
3. 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.
C. Do not drive close to a drop-off, ditch, creek
bank, or other hazard.
D. Reduce speed when making sharp turns and
when turning on hillsides.
E. Always be sure of your footing. Keep a firm
hold on the handles and walk---never run.
F. Do not operate where conditions are slippery.
4. 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.
If the discharge area should plug, shut the engine
off and wait for all movement to stop before
removing the obstruction.
5. Disengage the blades and wait for them to stop
before crossing gravel drives, walks or roads.
6. Shut the engine off and wait until the blades
come to a complete stop before removing the
grass catcher container.
7. Never raise the cutter deck while the blades are
rotating.
8. 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
13. Do not pass or stand on the grass discharge side
of any mower with the engine running. Stop
operation when another person approaches.
9. Ifthecuttingbladesshouldstrikeasolidobjector
theequipmentshouldstarttovibrateabnormally,
stoptheengine,disconnectthesparkplugwire,and
check immediatelyforthecause. Vibrationis
generallyawarningoftrouble.Checkthemachine
fordamagedordefectiveparts. Repairanydamage
beforestartingtheengineoroperatingthecutter
deck. Besurethebladesareingoodconditionand
thebladeboltsaretight.
10. 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.
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
useextreme caution. ALWAYSFOLLOWOSHA
APPROVED OPERATION.
11. 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.
12. Before leaving the operator’s position or leaving
the mower unattended, move the speed adjust-
ment lever into the neutral position, place the
neutral latches in the neutral lock position, apply
the parking brake, and move the blade engage-
ment switch to OFF. Shut the engine OFF and
remove the key.
14. Use only Scag approved riding attachments.
Scag Approved Riding Attachments:
RS-ZT
Using unapproved attachments, (especially
"stand-up" riding attachments) may be hazardous.
MAINTENANCE AND STORAGE
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 mainte-
nance or adjustment, remove the battery, drain
the gasoline from the fuel tank and the oil from
the crankcase.
3. To reduce potential fire hazard, keep the engine
free of excessive grease, grass, leaves and accu-
mulations of dirt.
4. Be sure the machine is in safe operating condi-
tion by keeping nuts, bolts, and screws tight.
Check the blade mounting bolts and nuts fre-
quently to be sure they are tightened.
5. 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.
6. Do not overspeed the engine by changing gover-
nor settings. To be sure of safety and accuracy,
have an authorized dealer check maximum
engine speed with a tachometer.
7. The engine must be shut off before checking the
oil or adding oil to the crankcase.
8. 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.
WARNING:
WARNING
FALLING HAZARD
USE ONLY SCAG APPROVED
RIDING ATTACHMENTS
SEE OPERATOR'S MANUAL
481109

4
9. Always store gasoline in a safety-approved, red
container.
10. Be careful when servicing the battery as it
contains acid, which is corrosive and could cause
burns to skin and clothing.
11. Batteries release explosive gases when being
charged or discharged. Keep batteries away
from any source of sparks and/or flame.
12. Make sure all hydraulic connections are tight and
all hydraulic hoses and lines are in good condi-
tion before starting the machine.
13. Hydraulic fluid is under high pressure. If you
need service on your hydraulic system, please
see your authorized Scag dealer.
INITIAL RUN-IN PROCEDURES
(FIRST DAY OF USE OR APPROXI-
MATELY 10 HOURS)
1. Check the belts for proper tension at 2, 4 and 8
hours. Adjust as needed.
2. Check the steering control rods and the speed
control for neutral adjustment. (See Adjust
ments, page 6-8)
3. Check the tires for proper pressure.
Caster Wheels 25 psi.
Drive Wheels 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 engage-
ment switch is OFF and the parking brake
is ON.
6. Apply lubricant to all the grease fittings. Lubri-
cant was applied at the factory. This is just a
precautionary check to make sure that all the
fittings have been lubricated.
MOWER OPERATION
-NOTE-
Use gasoline with an octane rating no less than
87.
* The speed adjustment lever must be in
NEUTRAL.
* The blade clutch switch must be in the OFF
position.
* The neutral latches must be in the neutral
lock position.
* The key switch must be on.
* The parking brake must be on.
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 neces-
sary.
4. 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.
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.
390S0138
PULL UP TO ENGAGE
PUSH DOWN TO DISENGAGE

5
-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 1/2 throttle, not under
full load.
If you are not familiar with the operation of the
hydrostatic drive and zero turn feature, practice
turning and maneuvering with the hand controls
before engaging the blades.
5. Release the parking brake. Move the speed
adjustment lever to the desired mowing speed.
-NOTE-
Top speed is suggested only for transport!
6. Whilesqueezingthesteeringbrakeleverswithboth
hands,releasebothneutrallatches.
7. When the steering brake levers are released, the
machinewilltravelstraight.Tomakearightturn,
squeezetheRHlever. Toturnleft,squeezetheLH
lever.
8. TO STOP, squeeze both levers, lock the neutral
latches, and move the speed adjustment lever to
neutral.
9. To move the machine in reverse, squeeze up on
both steering control levers.
10. To "freewheel" or move the machine around
without the engine running, turn the dump valve
levers located at the back of the pumps to the
"freewheel"positions(seeFigure1).Tooperatethe
machine,thedumpvalveleversmustbereturnedto
theclosedpositions.
ire pressure can be adjusted forire pressure can be adjusted for
ire pressure can be adjusted forire pressure can be adjusted for
ire pressure can be adjusted for
WARNING:
Dump Valve Levers
(normal position)
SGB112
Figure 1. Dump Valves
CUTTER DECK BELCUTTER DECK BEL
CUTTER DECK BELCUTTER DECK BEL
CUTTER DECK BELT ADJUSTMENTST ADJUSTMENTS
T ADJUSTMENTST ADJUSTMENTS
T ADJUSTMENTS
-NOTE-
The hydro drive belt is spring loaded and does
not require adjustment.
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 2)
SC400G
BELT
WASHER
"J" BOLT
NUT
CUTTER DECK DRIVE BELT TENSION
ALIGNMENT IDLER - L.H.
END OF L-SHAPED
BRACKET
Figure 2. Deck Drive Belt Adjustment

6
-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
thetensionbytighteningorlooseningtheJ-boltnut
(Seefigure3).
4. Replace the belt cover.
"J" Bolt
Nut
Belt
Deck
Washer
Figure 3. Cutter Deck Belt Adjustment R.H.
SC405G
LOW CUT (1 3/4"- 3")
HIGH CUT (3 1/4"- 4 1/2")
MID RANGE
(2 1/2"- 3 3/4")
CUTTER DECK HEIGHT ADJUSTMENT
Figure 4. Cutting Height Adjustment
Caster spacers also can be repositioned to change
cutting heights and to change the pitch of the deck.
(See figure 5)
Figure 5. Caster Wheel Spacers
BLADE HEIGHT ADJUSTMENTBLADE HEIGHT ADJUSTMENT
BLADE HEIGHT ADJUSTMENTBLADE HEIGHT ADJUSTMENT
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 spindle shaft.
-NOTE-
All blades should be positioned equally.
For best cut and discharge, a minimum of three
spacersshouldbeinstalledbetweenthebladeandthe
spindle(Seefigure6).
SC406G99
PIN SPACERS
REPOSITIONING SPACERS
CUTTER DECK ADJUSTMENTS
Duetothemany cuttingconditionsthatexist, itis
difficult to suggest a cutter deck setting that will
workforeverylawn. Therearetwoadjustmentsthat
can be made on these decks, pitch and height.
PITCH is the angle of the blades (comparing front to
rear). A 1/4" downward pitch (front of deck down)
isrecommendedforbestcuttingperformance.
HEIGHT is the nominal distance the blade is off of
theground. Thismeasurementismadewiththe
blades pointed side to side and distance is measured
between cutting tip and ground. (Also see Blade
HeightAdjustment)
Changestothecuttingheightcanbeachievedby
repositioning the cutter deck. (This adjustment will
also effect the pitch of the deck). There are three
available positions (see figure 4).

7
CUTTER BLADES
Do not sharpen beyond 1/3 of the width of the blade.
(See figure 7)
-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.
SC407G
Figure 6. Blade Spacers
SC4O8G
ANGLE BLADE BACK
DO NOT CUT IN
X MUST NOT EXCEED
1/3 BLADE WIDTH
X
30
Figure 7. Blade Sharpening
NEUTRAL ADJUSTMENT
1. Raise the drive wheels off the ground and block
the caster wheels.
2. Remove the speed control spring and the steer-
ing control rod from the machine. (See figure 8)
Steering Control
Rod
Spring Handle Bellcrank
SC160G
Bolts
Figure 8. Neutral Adjustment
3. Loosen the wing nut and let the speed adjust-
ment bearing lever fall away from the cam.
4. Start the engine and observe the drive wheels. If
thedrivewheelsarerotating,loosentheboltsonthe
neutraladjustmenthandleandmovethehandleup
ordownuntilthewheelsareinneutral. (Seefigure
8)
5. Tighten the bolts on the neutral adjustment
handle. When tightening the bolts, hold the
bellcrank to prevent it from moving and throw-
ing off the neutral adjustment.
6. Turn the engine off.

8
STEERING CONTROL ROD
ADJUSTMENT
-NOTE-
This adjustment is made to allow the steering
control levers to be moved out of the neutral
latch without engaging reverse.
1. Connect the steering control rods into the steer-
ing control levers on the handle. Do not install
the hair pin at this time.
2. Turn the swivel joint on the steering control rods
until the swivel joint is centered in the slot in the
bellcrank.
3. Remove the steering control rods from the
machine. Install the speed control spring onto
the swivel joint. Reinstall the steering control
rods onto the machine and secure using the hair
pins.
-NOTE-
Before proceeding with this adjustment, be sure
that the tire pressures are correct. (see page 4)
and that the neutral adjustment and the steering
control rod adjustment have been completed.
1. Engage the neutral latch on both steering control
levers and move the speed adjustment lever into
the neutral position.
2. Position the speed adjustment lever so that the
bearing just contacts the speed adjustment cam.
(See below)
Steering Control Rod
Speed Control Spring Bellcrank
SC161G
Swivel
Joint
Speed Adjustment
Cam
Bearing
Speed
Adjustment
Bearing Lever
TRACKING ADJUSTMENT
3. Tightenthebearingsecuringthespeedadjustment
bearingleverandrepeatontheoppositeside.
4. With the machine on a flat level surface, start the
engine and place the speed adjustment lever into
the speed that will most often be used.
5. Squeeze the steering control levers and release
the neutral latch. Slowly release the steering
controllevers,allowingthemachinetomovefor-
ward.
6. If the machine pulls to one side, put the speed
adjustment lever back into the neutral position
and turn the engine off.
7. On the side that the machine pulled toward,
loosen the wing nut securing the speed adjust-
ment bearing lever and move the bearing 1/16"
away from the cam. Start the engine and recheck
the tracking. Adjust as needed.
8. If tracking cannot be achieved, contact your Scag
servicing dealer.
PARKING BRAKE
1. Adjusttheparkingbrakesothatwhenthebrake
hand lever is against the stop on the handle bar,
the brake levers on the brake shaft weldment are
against the stops on the engine deck.
Adjust the brake only enough to hold the
machine. Excessive force may cause damage
to the machine or brake components.
2. Adjust the brake actuator rod on either side of
the machine to obtain proper brake adjustment.
CAUTION:

9
COMMENTSCOMMENTS
COMMENTSCOMMENTS
COMMENTS
PROCEDUREPROCEDURE
PROCEDUREPROCEDURE
PROCEDURE
LUBRICALUBRICA
LUBRICALUBRICA
LUBRICATION & MAINTENANCETION & MAINTENANCE
TION & MAINTENANCETION & MAINTENANCE
TION & MAINTENANCE
+ Grease spindle until grease comes out the relief valve
Compatible Greases: Lidok EP #2 (found at industrial shops)
Ronex MP (Exxon service stations)
Shell Alvania (Shell service stations)
Mobilux #2 (Mobil service stations)
Super Lub M EP #2 (Conoco service stations)
X
XCheck all hardware for proper tightness
Change engine oil and filter at 5 hours
X Check engine oil Do not over fill
X Remove debris from under belt cover More often if needed
X Sharpen cutter blades More often if needed
X Grease spindle bearings + US Lithium MP White Grease 2125
X Clean air filter More often if needed
X Check belt tension Adjust as needed
X Check tire pressure Add or adjust as required
X Check battery level Adjust as needed
X Replace air filter More often if needed
X Grease caster wheel bearings Chassis grease
X Grease caster wheel pivot shafts Chassis grease
X Grease idler pulley bracket on cutter deck Chassis grease
X Change hydrostatic oil filter Clean area before removing the filter
X Change engine oil and filter See engine manufacturer information
X Grease idler arm pivots Chassis grease
X Grease brake hand lever Chassis grease
X Grease brake actuator levers Chassis grease
X Check all hardware for proper tightness
X Adjust air gap on electric clutch Contact your Scag dealer for information about
X Drain hydraulic system and replace oil making this adjustment.
BREAK-INBREAK-IN
BREAK-INBREAK-IN
BREAK-IN
8 HOURS (DAILY)8 HOURS (DAILY)
8 HOURS (DAILY)8 HOURS (DAILY)
8 HOURS (DAILY)
40 HOURS (WEEKLY)40 HOURS (WEEKLY)
40 HOURS (WEEKLY)40 HOURS (WEEKLY)
40 HOURS (WEEKLY)
100 HOURS (BIWEEKLY)100 HOURS (BIWEEKLY)
100 HOURS (BIWEEKLY)100 HOURS (BIWEEKLY)
100 HOURS (BIWEEKLY)
500HRSORANNUALLY500HRSORANNUALLY
500HRSORANNUALLY500HRSORANNUALLY
500HRSORANNUALLY

10
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
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
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

11
CONDITION
TROUBLESHOOTING
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 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 Sharpen blade
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

12
Scalping - Blades Low tire pressures Check and adjust pressures
Hitting Dirt or
Cutting Very Close to Ground speed too fast Slow speed to adjust for conditions
the Ground 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
Step Cut Blades not mounted evenly Adjust pitch and level
Ridge in Center of
Cutting Path Bent blade Replace blade
Internal spindle failure See your authorized SCAG dealer
Mounting of spindle incorrect See your authorized SCAG dealer
Slope Cut - Sloping Bent spindle mounting area See your authorized SCAG dealer
Ridges Across Width
of Cutting Path Internal spindle failure See your authorized SCAG dealer
Bent deck housing See your authorized SCAG dealer
TROUBLESHOOTING
CONDITION CAUSE CURE
Width of Deck
SGB024
Width of Deck
SGB025
Width of Deck
SGB022

13
TECHNICAL SPECIFICATIONS
ENGINES
General Type: Heavy duty industrial/commercial
Brand: Kohler, Kawasaki,
Models: Kohler CV15T, CVE 20;Kaw. FC420V;
Horsepower: Kohler 15HP& 20HP; Kaw. 14HP; Kaw. 17HP
Type: 4 cycle gas, vertical shaft engines
Displacement: Kohler: 15HP = 426cc, 20 HP= 624cc
Kawasaki: 14HP = 423cc, 17HP = 494cc
Cylinders: Varied - see manufacturer's specifications
Governor: Mechanical type governor with variable speed control set
at 3600 rpm (+75 rpm), idle set at 1200 rpm (+75 rpm)
Exhaust Group: Single exhaust canister muffler
Fuel Pump Group: Varied - See manufacturer's specifications
Oil Pump Group: Varied - See manufacturer's specifications
Valve Group: Varied - See manufacturer's specifications
Starter/Electrical: Electronic Ignition with recoil starter or 12 volt battery with
alternator, solid state ignition with key start
Charging System: 15 amp
ENGINE DECK
Thickness: 7 gauge steel
Fuel Tank: 5 gallon (19.0 litres) seamless polyethylene
Drive Wheels/Tires: 16x6.50-8 four-ply pneumatic tubeless, radius edge
Brakes: Dynamic braking through hydro drive system
Axles: 1" tapered
Handle Bars: 1-1/4" diameter
DRIVE SYSTEM
Type: Hydro drive with two variable displacement pumps and two
cast-iron high torque motors
Hydro Pumps: Two Hydro-Gear Model BDP 10L pumps with dump valves for
movement without running the engine
Drive Wheel Motors: Two 12 cu. inch cast-iron high torque motors
Hydro Fluid Cooling Group: Heavy-duty cooling radiator, 7 qt. capacity cooling
reservoir, uses, SAE 10W30 fluid and 10 micron filter
Steering / Travel Control:: Independent handle controls for each wheel, squeeze to move
from forward to neutral to reverse, neutral lock lever, speed
range controlled with single lever (patented design), in-field
tracking adjustment with no tools necessary
Parking Brakes: 7.5" drum, band brake, one on each wheel
Dump Valves: Allows for movement without engine running
Axles: 1" tapered motor shafts
Wire Harness: 14 gauge wire
Safety Group: Handle actuated operator presence system (patented design),
blade / clutch and transmission interlock to engine kill
Forward Speed Range: 0 to 7.4 mph
Reverse Speed Range: 0 to 3.0 mph
Date of Issue: May, 1998
Specifications Subject to Change Without Notice

14
TECHNICAL SPECIFICATIONS (CON'T)
CUTTER DECKS SWM 36, SWM 48, SWM 52, SWM 61, SWM 72
Type: Out-front design with anti-scalp rollers
Construction: SWM36,48: 7-gauge steel with 7-gauge (3/16") steel skirt
SWM52,61,72:10-gauge steel with 7-gauge (3/16") steel
skirt
CuttingWidth: 35.5" (90.2 cm), 48.0 (122.0 cm), 52.0 " (132.0 cm),
61.0 " (155.0 cm), 71.5" (181.6 cm)
Cutting Height Adjustment: Adjustable from 1-3/4" to 4-1/4" in 1/4" increments
Cutter Blades: .204 thick, milled edge, 5150 alloy steel
SWM 36: Two (2) 18" SWM 48: Three (3) 16.5"
SWM 52: Three (3) 18" SWM 61: Three (3) 21"
SM72: Three (3) 24" blades
BladeEngagement: Electric blade brake clutch with instrument panel switch
Discharge Opening: Extra wide 11.5", 13.75 " discharge opening with hinged
chute
Caster Wheels: 9.4 x 3.5 smooth tread flotation, inner tubes, split rims, roller
bearings, with quick pin removal
Spindles: Cast housing, taper roller bearing, low maintenance with
top access grease fitting and grease overfill relief poppet
Spindle Pulleys: Cast-iron with easily removed taper hubs
Idler Pulley: 5" diameter pulley, welded and riveted construction,
1-3/8" O.D. Bearing
Idler Arm: Heavy duty idler arm of 1/4" channel steel
Cutter Deck Belts: B-section with Kevlar cord
ADDITIONAL SPECIFICATIONS
OPTIONAL ITEMS/ATTACHMENTS
Fabric Grass Catcher: GC-F4 Grass Catcher with 4 cubic ft. capacity
Metal Grass Catcher: GC-4D Grass Catcher with 4 cubic ft. capacity and rope pull
dump or pick-up and dump
Steerable Sulky: RS-ZT Steerable Sulky with padded seat and full articulation
for zero-radius turning
Mulching Plate: Steel plate fits over discharge opening. No blade change or
or removal required. Installs and removes in the field.
APPROXIMATE DIMENSIONS SWM36 SWM48 SWM52 SWM61 SWM72
Length: 74.0" 74.0" 74.0" 76.0" 76.0"
Length with Grass Catcher: 74.0" 74.0" 74.0" 76.0" 76.0"
Tracking Width: 37.0" 42.0" 42.0" 42.0" 42.0"
Width: 54.5" 60.0" 60.0" 70.0" 81.0"
Width (with discharge chute up): 37.5" 53.0" 53.0" 63.0" 74.0"
With with grass catcher: 55.0" 69.0" 69.0" 80.0" 91.0"
Height: 40.5" 40.5" 40.5" 40.5" 40.5"
Height with grass catcher: 40.5" 40.5" 40.5" 40.5" 40.5"
Weight 510 lbs. 550 lbs. 590 lbs. 625 lbs. 695lbs.
Weight with grass catcher: 550 lbs. 590 lbs. 630 lbs. 665lbs. 730 lbs.
Turning Radius: Zero Zero Zero Zero Zero
Date of Issue: May, 1998
Specifications Subject To Change Without Notice

15
NOTES

16
32" & 36" CUTTER DECKS
19
20
21
22
21
20
24 23
18
25
37
26
27
28
29
30 31
33 4
34 32 31
35
14 1
36 38
45
11
43
42
44
45
43
46
44
11 59
60
58
9
48
2
14
58
22
42
50
52
51
49
41
69
49
SW-SWZ99CD36
8
62
5
22
3
65
63
6
66
67
64
5
39 41
41
69
A
A
57
14
56
40
55
35
11
10
17
16
15
15A
12
11
13
37
754
55
53
61
47
40
46A
39A
1A
68