Scag Power Equipment SWU User manual

MODEL SWU
OPERATOR’S MANUAL
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. THE SPECIFICMODELSTHAT THIS
BOOK COVERS ARE CONTAINED ON THE
INSIDECOVER. BEFOREOPERATINGYOUR
MACHINE, PLEASE READ ALL THE INFOR-
MATION ENCLOSED.
PART NUMBER 03066

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 ASTHE 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:
SWU36-15KH with a serial number of 4750001 to 4759999
SWU48-17KA with a serial number of 4760001 to 4769999
Always use the entire serial number listed on the serial number
tag when referring to this product.
WARNING:

TABLE OF CONTENTS
SUBJECT PAGE
Introduction.................................................................................................. 1
General Safety Instructions ......................................................................... 1
Signal Words ............................................................................................... 1
Before Operating ......................................................................................... 2
While Operating........................................................................................... 2-3
Maintenance and Storage ........................................................................... 3-4
Initial Run-In Procedures ............................................................................. 4
Mower Operation ......................................................................................... 4-5
Cutter Deck Belt Adjustments...................................................................... 5
Transmission Drive Belt ............................................................................... 5
Drive Control Adjustments........................................................................... 5
"Adjust-A-Grip" Settings .............................................................................. 5-6
Adjusting Cutting Height.............................................................................. 6
Cutter Blades............................................................................................... 6
Lubrication and Maintenance Chart ............................................................ 7
Troubleshooting Cutting Conditions ............................................................. 8-10
Technical Specifications .............................................................................. 11-12
Limited Warranty Statement......................................................Inside Back Cover
I
WE SUPPORT OPE
TECHNICIAN
CERTIFICATION
Equipment & Engine
Training Council
EE
TC
MEMBER

TABLE OF CONTENTS
(CONTINUED)
SUBJECT PAGE
Illustrated Parts List
Notes ................................................................................................ 13
SWUM - 36" Cutter Deck .................................................................. 14-15
SWUM - 48" Cutter Deck .................................................................. 16-17
Deck Frame - 36" .............................................................................. 18-19
Deck Frame - 48" .............................................................................. 20-21
Engine Deck ..................................................................................... 22-23
Handle Assembly .............................................................................. 24-25
Instrument Panel............................................................................... 26
Peerless Transmission ...................................................................... 27
Wire Harness - Handle ..................................................................... 28
Wire Harness - Engine Deck ............................................................ 29
Wire Harness Adapter - Kawasaki .................................................... 29
Replacement Decals......................................................................... 30-32
Limited Warranty Statement............................................Inside Back Cover
II

1
SIGNAL WORDS
This symbol means “Attention! Become Alert!
Your Safety is Involved!". The symbol is used
with the following signal words to attract your
attentiontosafetymessages found onthedecalsand
throughoutthismanual. Themessagethatfollowsthe
symbolcontainsimportantinformationaboutsafety.
To avoid injury and possible death, carefully read the
message! Be sure to fully understand the causes of
possible injury or death.
SignalWord:
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
machinethatcould result in high probability of death
or irrepairable 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 prolongedlife andmaximum
efficiency of your mower depends on you following
theoperating,maintenanceandadjustmentinstruc-
tionsinthismanual.
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.
USEOFOTHERTHAN ORIGINALSCAG
REPLACEMENTPARTSWILLVOIDTHE
WARRANTY.
The “Right” and “Left”, “Front” and “Rear” of the
machine are referenced from the operator’s per-
spective when in the normal operating position and
facing the forward travel direction.
GENERALSAFETYINSTRUCTIONS
READTHISOPERATOR'SMANUALand
instructionsfurnishedwithattachments.
Performonlythosemaintenanceproceduresdescribed
in this manual. If major repairs are ever needed or
assistanceis desired, contact an Authorized Scag
Dealer. To ensure optimum performance and safety,
always purchase genuine SCAG replacement parts
andaccessories.
Your safety and the safety of others depends
significantly 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
properinstruction.
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
safeoperatingcondition.
5. Do not operate the machine while wearing san-
dals, 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 regulations.
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. Donotsmoke while handlinggasoline.
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. Beforeattemptingtostarttheengine,shiftthe
transmissioninto neutral,move theblade engage-
ment switch to the OFF position, and move the
neutrallatches toneutral.
WHILE OPERATING
1. 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.
2. Do not run the engine in a confined area without
adequateventilation. Exhaustfumes arehazard-
ous and could possibly be deadly.
3. Usingthemachinedemandsattention. 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 speedwhen makingsharp turns and
whenturningonhillsides.
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
dischargearea shouldplug, shutthe engine off
and wait for all movement to stop before remov-
ingtheobstruction.
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
catchercontainer.
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.

3
14. UseonlyScagapprovedriding attachments.
ScagApprovedRidingAttachments:
RS-2
RS-ZT
Usingunapprovedattachments,(especially"stand-
up"ridingattachments)maybehazardous.
MAINTENANCE AND STORAGE
1. Disconnect the spark plug wire from the spark
plugto prevent accidentalstarting of the engine
whenservicing,adjusting orstoring themachine.
2. If the mower must be tipped to perform mainte-
nance or adjustment, remove the battery if it has
one,drain the gasoline from the fuel tankand the
oil from the crankcase.
3. To reduce potential fire hazard, keep the engine
free of excessive grease, grass, leaves and
accumulationsofdirt.
4. Be sure the machine is in safe operating condition
by keeping nuts, bolts, and screws tight. Check
theblademountingboltsand nutsfrequentlytobe
suretheyaretightened.
5. Iftheenginemustberunningtoperformamainte-
nanceadjustment,keephands,feet,clothingand
other parts of the body away from the cutter deck
blades and other moving parts.
6. Donotoverspeed theengine bychanging gover-
nor settings. To be sure of safety and accuracy,
haveanauthorizeddealercheckmaximumengine
speed with a tachometer.
7. Theenginemustbeshutoffbeforecheckingthe
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
FALLING HAZARD
USE ONLY SCAG APPROVED
RIDING ATTACHMENTS
SEE OPERATOR'S MANUAL
481109
9. If the cutting blades should strike a solid object
or the equipment should start to vibrate abnor-
mally,stop theengine, disconnectthe sparkplug
wire, and check immediately for the cause.
Vibration is generally a warning of trouble.
Checkthe machine fordamaged 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
aretight.
10. Reduce speed and exercise extreme caution on
slopes and in sharp turns to prevent tipping or
loss of control. Be especially cautious when
changingdirections 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
use extreme caution. ALWAYS FOLLOW OSHA
APPROVED OPERATION.
11. Donot touch theengine or mufflerwhile 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
themowerunattended,shiftthetransmissioninto
neutral, place the neutral latches in the neutral
lockposition,and movetheblade engagement
switch to OFF. Shut the engine OFF and remove
thekey.
13. Do not pass or stand on the grass discharge side
ofany mowerwith theengine running. Stop
operation when another person approaches.
WARNING:

4
9. Always store gasoline in a safety-approved, red
container.
10. Be careful when servicing the battery as it con-
tains acid, which is corrosive and could cause
burnstoskinandclothing.
11. Batteries release explosive gases when being
charged or discharged. Keep batteries away from
any source of sparks and/or flame.
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. Check for abnormal wear and adjust as
needed.
2. Check the steering control rods for neutral
adjustment. (SeeAdjustments, page6)
3. Check the tires for proper pressure.
Caster Wheels 25 psi.
Drive Wheels 15 psi.
4. Check for loose hardware. Tighten as needed.
5. Checkthe safety switches for properadjustment:
* The engine will crank, but not start if the
machineis not inneutral.
* On electric start machines, the engine will
not crank if the PTO switch is on.
* Theengineshould crank and start if the
machineisinneutralandthePTO
engagementswitchisOFF.
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 properly.
1. Readandunderstandthesafetyinstructions
beforeattemptingtooperatethismachine.
2. Beforestartingtheengine:
* 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.
MOWER OPERATION
-NOTE-
Use gasoline with an octane rating no less than
87.
* ThetransmissionmustbeinNEUTRAL.
* The blade clutch switch must be in the OFF
position.
* The operator's presence levers must be
released.
* The neutral latches must be in the neutral lock
position.
* Thekey switch must be on.
3. Starttheengine:
* Choke as required. If the engine is cold, pull
thechokeknobout. Whentheenginestarts,
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 pulling the blade
clutch switch into the ON position. Push the
switch to the OFF position to disengage the cutter
blades.
390S0138
PULL UP TO ENGAGE
PUSH DOWN TO DISENGAGE

5
TRANSMISSION DRIVE BELT
ThetransmissiondrivebeltontheSWUbeltdrivemachine
hasaspring-loadedidlersystemandneedsnoadjustment.
Ifyoufindthatthetransmissionslips,seeyourlocalScag
ServicingDealerforservice.
DRIVE CONTROL ADJUSTMENTS
1. Adjust the steering control rods so that there is
approximately3/4" clearance from the bottom of
the rod to the bottom of the neutral latch slot when
in the drive position. (See figure 1)
Figure 1. Steering Control Rod Adjustment
2. Adjustthesteeringbrakerodssothatthebrakesdo
notapplyuntilthesteeringleversarepulledtightto
thehandles. Whenthesteeringleversarelockedin
theneutralpositionthemachineshouldmovefreely.
"ADJUST-A-GRIP SETTINGS"
"Adjust-A-Grip,"withthreesettings,allowshandforce
adjustmentinthefield,withnotoolsrequired. To
operatethe"Adjust-A-Grip",pullbackonthehandle
andmovetheleverupordowndependingonthe
amountofbeltforceneeded(SeeFigure2,page6).
-NOTE-
When the PTO is engaged or (possibly) disen-
gaged, 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 1/2
throttle, not under full load.
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
forward and reverse.
5. Shift the transmission into gear for the desired
mowingspeed.
-NOTE-
Top speed is suggested only for transport!
6. While squeezing the steering brake levers with
both hands, release both neutral latches.
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 shiftthe transmissioninto neutral.
CUTTER DECK BELT ADJUSTMENTS
Dueto a spring-loaded idler system,there is no ad-
justmentnecessaryforthecutterdeckbelts. The36"
cutterdeckhasonespring-loadedidler. The48"cutter
deckhastwospringloadedidlers.
WARNING:
SC404GB
NEUTRAL LOCK
POSITION
DRIVE POSITION
3/4"
STEERING
BRAKE LEVER
NEUTRAL
LATCH

6
SWU99AG
Figure 2. "Adjust-A-Grip"
Cutting conditions will determine what setting is needed
for the Adjust-A-Grip" and your machine. If the drive
belts slip due to high moisture conditions, the tension may
need to be increased. On the other hand, if the day is dry
and you are cutting on flat terrain the tension may be
decreased. To change the settings:
1. Pull back and move the lever up to reduce tension
on the drive belt.
2. Pull back and move the lever down to increase
tension on the drive belt.
ADJUSTING CUTTING HEIGHT
The mower deck can be adjusted from a height of
1-inch to 4-1/2 inches at 1/2-inch intervals. To adjust
thecuttingheight:
Do not adjust the cutting height with the mower
blades rotating. Shut off the engine and remove
the ignition key. Bodily injury could occur from
the rotating blades.
1. Shut off the engine and remove the ignition key.
2. Remove the two hairpins from the adjusting pins on
one side of the cutter deck (Figure 3).
3. Lift or lower the deck to the desired cutting height
and reinstall the hairpins. A deck height decal is
located on the deck mounting frame as an aid in
adjusting the deck to the desired height.
4. Repeat the above process on the other side of the
cutter deck.
Figure 3. Cutting Height Adjustment
CUTTER BLADES
Donotsharpenbeyond1/3ofthewidthoftheblade.
(See figure 3)
-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,
vibration and premature wear of spindle assem-
bly can occur. See your authorized Scag dealer
for blade balancing or special tools if you
choose to balance your own blades.
Figure 4. Blade Sharpening
SC4O8G
ANGLE BLADE BACK
DO NOT CUT IN
X MUST NOT EXCEED
1/3 BLADE WIDTH
X
30
Remove Hair Pins SWU99DHA
WARNING:

7
COMMENTS
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
X
making this adjustment
PROCEDURE
Check 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 wear
X Check tire pressure Add or adjust as required
X Change engine oil See engine mfg. information
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 drive wheel bearings Chassis grease
X Grease transmission couplers Chassis grease
X Grease idler bracket LH & RH Chassis grease
X Check all hardware for proper tightness More often if needed
X Adjust air gap on electric clutch Contact your Scag dealer for information about
BREAK-IN
8 HOURS (DAILY)
40 HOURS (WEEKLY)
100 HOURS (BIWEEKLY)
500 HRS OR ANNUALLY

8
Stringers- Occasional Low engineRPM Run engine at full 3600 RPM
Blades of Uncut
Grass Ground speed too fast Slow speed to adjust for conditions
Wetgrass Cut grass after it has dried out
Dullblades, incorrectsharpening Sharpenblades
Deckplugged, grassaccumulation Clean underside of deck
Beltsslipping Adjust belttensions
Streaking - Strips of Dull,worn blades Sharpenblades
Uncut Grass in Cutting
Path Incorrectbladesharpening Sharpenblades
Lowengine RPM Run engine at full 3600 RPM
Beltslipping Adjustbelt tension
Deckplugged, grassaccumulation Clean underside of deck
Ground speed too fast Slow speed to adjust for conditions
Wetgrass Cut grass after it has dried out
Bentblades Replaceblades
Width of Deck
SGB018
CONDITION CAUSE CURE
Width of Deck
SGB020
Width
of
Deck
Width
of
Deck
SGB019
Streaking - Strips of Notenoughoverlapping Increase the overlap of each
UncutGrass Between betweenrows pass
CuttingPaths
TROUBLESHOOTING CUTTING CONDITIONS

9
CONDITION
TROUBLESHOOTING
CAUSE CURE
SlopingRidge Across Tire pressures not equal Check and adjust tire pressure
Width of Cutting Path Wheelsuneven Check and adjust tire pressure
Deckmountedincorrectly See your authorized SCAG dealer
Uneven Cut on Unevenground 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 Replaceblade
Ground - Wavy
High-Low Blade upsidedown Mount with cutting edge toward
Appearance, ground
Scalloped Cut, or
RoughContour Deckplugged, grassaccumulation Clean underside of deck
Too much blade angle (deck pitch) Adjust pitch and level
Deckmountedimproperly See your authorized SCAG dealer
Bent spindle area See your authorized SCAG dealer
Dullblade Sharpenblade

10
Scalping - Blades Lowtire pressures Checkandadjust pressures
Hitting Dirt or
Cutting Very Close to Ground speed too fast Slow speed to adjust for conditions
theGround Cutting too low May need to reduce ground speed,
raisecutting height, changedirection
of cut, and/or change pitch and level
Roughterrain 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
Wetgrass Cut grass after it has dried out
Step Cut Blades notmounted evenly Adjust pitch and level
Ridge in Center of
CuttingPath Bentblade Replaceblade
Internal spindlefailure See your authorized SCAG dealer
Mounting of spindle incorrect See your authorized SCAG dealer
Slope Cut - Sloping Bentspindle mounting area Seeyour authorized SCAGdealer
RidgesAcross Width
of Cutting Path Internal spindlefailure 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

11
TECHNICALSPECIFICATIONS
MODELS SWU36-15KH, SWU48-17KA
ENGINE
General Type: Heavy duty industrial/commercial
Brand / Model: Kohler CV15T, Kawasaki FH500V
Horsepower: Kohler CV15T = 15HP maximum @ 3600 RPM
KawasakiFH500V =17HP maximum @ 3600RPM
Type: Kohler = 4 cycle gas, single cylinder, overhead valve, vertical shaft engine
Kawasaki = 17HP 4 cycle, air cooled, V twin cylinder, vertical shaft engine
Displacement: Kohler = 426 cc
Kawasaki = 494 cc
Cylinder: Kohler = 1 cast-iron liner
Kawasaki = 2 cast-iron sleeves
Governor: Mechanical type governor with variable speed control. Settings:
Kohler = 3600 rpm (+/-75rpm), idle set at 1200 rpm (+/- 75 rpm)
Kawasaki = 3600 rpm(+/- 75rpm), idle set at 1550 rpm (+/- 75 rpm)
Air Cleaner: Kohler = Large capacity duel element with cyclonic-type air filter
Kawasaki = Semi-cyclone type with dual element
Exhaust: Single canister side mount muffler.
Fuel Pump Group: Kohler = Mechanical fuel pump with in-line fuel filter
Kawasaki = Pulse-type fuel pump with in-line fuel filter
Oil Pump Group: Kohler = Full pressure lubrication with full flow oil filter and positive
displacement Gerotor™ oil pump
Kawasaki = Full pressure lubrication with oil filter
Starter/Electrical: Electronic ignition with recoil starter
ENGINEDECK
Thickness: 7 gauge steel.
Fuel Tank: 5 gallon (19.0 liters) seamless polyethylene.
Drive Wheels/Tires: 15.0 x 6.0-6 two-ply pneumatic tubeless.
Handle Bars: 1-1/4" diameter.
DRIVESYSTEM
Type: Belt drive with twin power belts for increased friction to pulley surface and
"Adjust-A-Grip" traction control lever with three settings
Transmissions: Peerless 5-speed transmission, Model #700-070A with 9 spline coupler shaft
Steering/Travel Control: Clutch/brake fingertip steering, key lock switch. ("Adjust-A-Grip"
design allows minimum hand force to operate controls)
Brakes: 6" drum, band brake, one on each wheel.
Axles: 1"
Wire Harness: 14 gauge wire.
Safety Group: Hand actuated operator presence system with blade clutch and
transmission interlock to engine kill
Forward Speed Range: 1.5 to 7.0 mph
Reverse Speed Range: 3.0 mph
Date of Issue: March, 1999
Specifications Subject to Change Without Notice

12
TECHNICAL SPECIFICATIONS (CON'T)
CUTTERDECK
Type: Out-front floating design with anti-scalp rollers.
Construction: 7-gauge (3/16") steel top and skirt with easy clean-out design
True Cutting Width: 36.0 inches (90.2cm), 48.0 inches (122.0cm)
BladeEngagement: Electric blade engagement clutch with control panel switch
CuttingHeightAdjustment: Manual adjustment 1" to 4-1/2" in 1/2" increments
Cutter Blades: .204" thick, milled edge, 5150 alloy steel
36" = Two (2) 18" blades
48" = Three (3) 16.5" blades
DischargeOpening: 36" & 48" = Extra wide 11.5"
CasterWheels: 11 x 4.5-5 smooth-tread flotation, roller bearings with quick pin removal
Spindles: Casthousing, taper roller bearing, lowmaintenance with top access
greasefitting andgrease overfill relief poppet.
Spindle Pulleys: Cast-ironwitheasilyremovedtaper hubs
Idler Arm: Spring-loadedselfadjustingwithpermanentlubrication
Cutter Deck Belts: B-section with Kevlar® cord.
ADDITIONALSPECIFICATIONS
OPTIONALITEMS/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
pickup and dump.
Sulky: RS-2 Two-Wheel Sulky with padded seat.
RS-ZTTwo-WheelZero-TurnSulkywithpaddedseat.
Mulching Plate: Steel plate fits over discharge opening. No blade change or removal
required. Installs and removes in the field.
APPROXIMATE DIMENSIONS SWU36 SWU48
Length: 79.5" 74.0"
Length with grass catcher: 79.5" 74.0"
Tracking Width: 34.75" 34.75"
Width: 48.0" 59.0"
Width (with discharge chute up): 38.0" 49.0"
Width with grass catcher: 56.0" 68.0"
Height: 41.25" 41.25"
Height with grass catcher: 41.25" 41.25"
Weight: 513 lbs. 578 lbs.
Weight with grass catcher: 553 lbs. 618 lbs.
Date of Issue: March, 1999
SpecificationsSubject To Change Without Notice

13
NOTES

14
36" CUTTER DECKS
To"A"
"A"
1
2
3
4
5
65
78
910 9
11
12
13
14
15
16
17
18
19
19A
20
21
22 23
24
25
26
27
22
28
29
30
31 32
13 34
13 36
3738
39
40
41
42
43
42
44
45
44
45
48
49 50
51 52
53
54
55
56
57
58
59
49
48
62
53
50
60
32
61
50
47
39
51
47
46
SWU99CD36
33
35
34 41
50
63
36" CUTTER DECKS

15
1 461172 Cutter Deck (Includes Decals)
2 04017-27 Capscrew, 3/8-16 x 1.0"Serrated Flange Hex Hd
3 422478 Bracket, Anti-Scalp Wheel
4 04021-05 Lock Nut, 3/8-16 Center Lock
5 48100-15 Bushing, 376 ID Oilite
6 481632 Wheel, Anti-Scalp (Incl. Item 5)
7 04003-26 Bolt, Carriage 3/8-16 x 4.0"
8 481838 Pin Assy., Deck Adj. (Incl. Items 10 & 11)
9 43512 Spacer, Deck Adjustment Pin
10 481539 Rod End, Male 3/8-24 RH Thread
11 04020-25 Nut, 3/8-24 Jam
12 46631 Spindle Assembly
13 04019-03 Nut, 5/16-18 Serrated Flange
14 04063-08 Key,1/4 x 1/4 x 2.0"
15 04001-10 Bolt, Hex Head 5/16-18 x 1.25"
16 43309 Spacer, Spindle
17 04040-10 Flatwasher, 5/8 W
18 04001-41 Bolt, Hex Head 5/8-11 x 9.50"
19 48108 Cutter Blade, 18"
19A 48185 Cutter Blade, 18" Hi Lift
20 43299 Spindle Shaft
21 481024 Seal, Cutter Spindle Top
22 481022 Tapered Bearing Set (Two Bearings W/Race)
23 48114-04 Grease Fitting
24 48677 Relief Fitting, Cutter Spindle
25 43294 Spindle Housing
26 43312 Spacer, Outside
27 43296 Spacer, Inside
28 481025 Seal, Cutter Spindle Bottom
29 43297 Spindle Bushing
30 481035 Nut, Spindle
31 422762 Belt Cover, LH
32 481625-01 Wing Nut, 3/8-16
36" CUTTER DECKS
Ref. Part
No. Number Description Ref. Part
No. Number Description
33 04021-09 Nut, 3/8-16 Elastic Stop
34 04110-03 U-Nut, 3/8-16
35 04001-31 Bolt, Hex Head 3/8-16 x 2.50"
36 43515 Pin, Deck Adj. Rear
37 04060-08 Pin, Sloted Spring 3/16 x 1.50"
38 48038 Guide, Roller
39 04001-09 Bolt, Hex Head 5/16-18 x 1.0"
40 451118 Roller Shaft
41 48926 Tapered Hub
42 48924 Pulley
43 481880 Belt, Cutter Deck
44 04015-14 Capscrew, Socket Head. 1/4-20 x 1.375"
45 04020-09 Hex Nut, 5/8-11
46 481050 Spring, Chute Return
47 04021-10 Hex Nut, 5/16-18 Elastic Stop
48 04021-09 Hex Nut, 3/8-16 Elastic Stop
49 04043-04 Flatwasher, 3/8 (.938 x .391 x .105)
50 04019-04 Nut, 3/8-16 Serrated Flange
51 461054 Discharge Chute
52 04001-51 Capscrew, Hex Head 3/8-16 x 3.75"
53 04001-136 Capscrew, Hex Head 3/8-16 x 1.50"
54 43510 Pivot, Idler - Long
55 04001-62 Capscrew, Hex Head 38/16 x 3.25"
56 422713 Base, Idler Pivot
57 04003-04 Bolt, Carriage 5/16-18 x 1.0"
58 461174 Idler Arm Weldment
59 48224 Ball Bearing
60 04001-108 Bolt, Hex Head 5/16-18 x 4.25"
61 422763 Belt Cover, RH
62 481597 Spring, Deck Idler
63 48550 Pulley, Idler
* Common hardware which should be purchased locally. All bolts are Grade 5 plated, all other fasteners zinc plated.

16
48" CUTTER DECKS
To"B"
To "C"
To"A"
"A"
"B"
"C"
To "D"
"D"
SWU99CD48
1
2
3
4
5467
89
9
10
11
12
13
14
15
16
17
18
19
20
21
22
22
23
24
25
26
27 28
28A
29
30
31
32
33
34
35
36
37
32
38
39
40
69
41
42
43 44
45
46
47 48
49 50
51
52
46
46
51
52
51
52
48
53
41 54
43
58
59
55
60
18 63 64
18
59
18
17
18
17
60
61
62
17
18
56
18
67
9
8
8
9
10
68
13
9
57
14
65 66
59
70
48" CUTTER DECKS