Scag Power Equipment V Ride Svr36A 20Fx Users Manual Operators 03259
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- V-Ride Operators Manual 03259
- GENERAL INFORMATION
- SAFETY INFORMATION
- SPECIFICATIONS
- OPERATING INSTRUCTIONS
- 4.1 CONTROLS AND INSTRUMENT IDENTIFICATION
- 4.2 SAFETY INTERLOCK SYSTEM
- 4.3 INITIAL RUN-IN PROCEDURES
- 4.4 STARTING THE ENGINE
- 4.5 GROUND TRAVEL AND STEERING
- 4.6 ENGAGING THE DECK DRIVE (CUTTER BLADES)
- 4.7 HILLSIDE OPERATION
- 4.8 PARKING THE MOWER
- 4.9 AFTER OPERATION
- 4.10 REMOVING CLOGGED MATERIAL
- 4.11 MOVING MOWER WITH ENGINE STOPPED
- 4.12 RECOMMENDATIONS FOR MOWING
- 4.13 ADJUSTING CUTTING HEIGHT
- TROUBLESHOOTING CUTTING CONDITIONS
- ADJUSTMENTS
- MAINTENANCE
- ILLUSTRATED PARTS LIST
- 8.1 SCAG APPROVED ATTACHMENTS AND ACCESSORIES.
- NOTES
- 36A CUTTER DECK
- 48V & 52V CUTTER DECKS
- CUTTER DECK CONTROLS
- SHEET METAL COMPONENTS
- STEERING CONTROLS AND FUEL COMPONENTS
- HYDRAULICS AND ENGINE COMPONENTS
- ELECTRICAL SYSTEM
- HYDRAULIC PUMP ASSEMBLY
- REPLACEMENT DECALS AND INFORMATION PLATES
- SVR ELECTRICAL SCHEMATIC
- LIMITED WARRANTY - COMMERCIAL EQUIPMENT
OPERATOR’S
MANUAL
Part No. 03259
Printed 1/10
Printed in USA
© 2010
Scag Power Equipment
Division of Metalcraft of Mayville, Inc.
Congratulations on owning a Scag mower! This manual contains the
operating instructions and safety information for your Scag mower. Reading
this manual can provide you with assistance in maintenance and adjustment
procedures to keep your mower performing to maximum efciency. The
specic models that this book covers are listed on the inside cover. Before
operating your machine, please read all the information enclosed.
V-Ride
Model: SVR36A-20FX
SVR48V-24FX
SVR52V-26FX
WARNING
FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT
IN SERIOUS INJURY OR DEATH.
Read this manual completely as well as other manuals that came with your mower.•
ALWAYS FOLLOW OSHA APPROVED OPERATION.•
DO NOT operate on steep slopes. •
Under no circumstances should the machine be operated on slopes greater than 20 •
degrees. ALWAYS FOLLOW OSHA APPROVED OPERATION.
Stay two cut widths away from slopes, drop offs, ditches and retaining walls.•
DO NOT back down a slope or ramp.•
DO NOT mow on wet grass. Wet grass reduces traction and steering control.•
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.•
Keep others off the mow• er (only one person at a time)
REMEMBER - YOUR MOWER IS ONLY AS SAFE AS THE OPERATOR!
HAZARD CONTROL AND ACCIDENT PREVENTION ARE DEPENDENT UPON THE AWARENESS,
CONCERN, PRUDENCE, AND PROPER TRAINING OF THE PERSONNEL INVOLVED IN THE
OPERATION, TRANSPORT, MAINTENANCE, AND STORAGE OF THE EQUIPMENT.
This manual covers the operating instructions and illustrated parts list for:
SVR36A-20FX with a serial number of E8200041 to E8299999
SVR48V-24FX with a serial number of E8300031 to E8399999
SVR52V-26FX with a serial number of E8400031 to E8499999
Always use the entire serial number listed on the serial number tag when referring to this product.
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Table of Contents
Table of Contents
GENERAL INFORMATIONSECTION 1 - ...................................................................................1
1.1 INTRODUCTION ...........................................................................................................................................1
1.2 DIRECTION REFERENCE ...........................................................................................................................1
1.3 SERVICING THE ENGINE AND DRIVE TRAIN COMPONENTS .................................................................1
1.4 SYMBOLS ....................................................................................................................................................2
SAFETY INFORMATIONSECTION 2 - ......................................................................................3
2.1 INTRODUCTION ...........................................................................................................................................3
2.2 SIGNAL WORDS ..........................................................................................................................................3
2.3 BEFORE OPERATION CONSIDERATIONS ................................................................................................3
2.4 OPERATION CONSIDERATIONS ................................................................................................................4
2.5 MAINTENANCE CONSIDERATIONS & STORAGE ....................................................................................6
2.6 USING A SPARK ARRESTOR .....................................................................................................................6
2.7 SAFETY AND INSTRUCTIONAL DECALS .................................................................................................7
SPECIFICATIONSSECTION 3 - ................................................................................................8
3.1 ENGINE ........................................................................................................................................................8
3.2 ELECTRICAL ...............................................................................................................................................8
3.3 ENGINE DECK .............................................................................................................................................8
3.4 CUTTER DECK ............................................................................................................................................8
3.5 WEIGHTS AND DIMENSIONS .....................................................................................................................9
3.6 PRODUCTIVITY ...........................................................................................................................................9
OPERATING INSTRUCTIONSSECTION 4 - ...........................................................................10
4.1 CONTROLS AND INSTRUMENT IDENTIFICATION ................................................................................10
4.2 SAFETY INTERLOCK SYSTEM ................................................................................................................11
4.3 INITIAL RUN-IN PROCEDURES ................................................................................................................11
4.4 STARTING THE ENGINE ...........................................................................................................................11
4.5 GROUND TRAVEL AND STEERING .........................................................................................................12
4.6 ENGAGING THE DECK DRIVE (CUTTER BLADES) ................................................................................13
4.7 HILLSIDE OPERATION ..............................................................................................................................14
4.8 PARKING THE MOWER .............................................................................................................................14
4.9 AFTER OPERATION ..................................................................................................................................14
4.10 REMOVING CLOGGED MATERIAL ........................................................................................................14
4.11 MOVING MOWER WITH ENGINE STOPPED ..........................................................................................15
4.12 RECOMMENDATIONS FOR MOWING ....................................................................................................15
4.13 ADJUSTING CUTTING HEIGHT .............................................................................................................15
TROUBLESHOOTING CUTTING CONDITIONSSECTION 5 - ...............................................16
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Table of Contents
ADJUSTMENTSSECTION 6 - .................................................................................................19
6.1 PARKING BRAKE ADJUSTMENT ............................................................................................................19
6.2 TRAVEL ADJUSTMENT .............................................................................................................................19
6.3 THROTTLE CONTROL AND CHOKE ADJUSTMENTS ............................................................................21
6.4 BELT ADJUSTMENTS ...............................................................................................................................21
6.5 BELT ALIGNMENT .....................................................................................................................................21
6.6 CUTTER DECK ADJUSTMENTS ..............................................................................................................21
6.7 ELECTRIC CLUTCH ADJUSTMENT .........................................................................................................26
6.8 FRONT WEIGHT ADJUSTMENT ..............................................................................................................26
6.9 OPERATOR CUSHION ADJUSTMENT .....................................................................................................27
MAINTENANCESECTION 7 - ..................................................................................................29
7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS ......................................................29
7.2 LUBRICATION ............................................................................................................................................30
7.3 HYDRAULIC SYSTEM ...............................................................................................................................32
7.4 ENGINE OIL ...............................................................................................................................................33
7.5 ENGINE FUEL SYSTEM ............................................................................................................................34
7.6 ENGINE AIR CLEANER .............................................................................................................................34
7.7 BATTERY - ELECTRIC START MODELS..................................................................................................35
7.8 CUTTER BLADES ......................................................................................................................................36
7.9 TIRES ..........................................................................................................................................................37
7.10 BODY AND DECK ....................................................................................................................................37
ILLUSTRATED PARTS LISTSECTION 8 - ..............................................................................38
8.1 SCAG APPROVED ATTACHMENTS AND ACCESSORIES. .....................................................................38
NOTES ..............................................................................................................................................................39
36A CUTTER DECK .........................................................................................................................................40
48V & 52V CUTTER DECKS ...........................................................................................................................42
CUTTER DECK CONTROLS ...........................................................................................................................44
SHEET METAL COMPONENTS ......................................................................................................................46
STEERING CONTROLS AND FUEL COMPONENTS .....................................................................................48
HYDRAULICS AND ENGINE COMPONENTS ................................................................................................50
ELECTRICAL SYSTEM ...................................................................................................................................52
HYDRAULIC PUMP ASSEMBLY .....................................................................................................................54
REPLACEMENT DECALS AND INFORMATION PLATES .............................................................................56
SVR ELECTRICAL SCHEMATIC .....................................................................................................................58
LIMITED WARRANTY - COMMERCIAL EQUIPMENT .........................Following Section 8
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Section 1
INTRODUCTION1.1
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.
- IMPORTANT -
The replacement of any part on this product
by other than the manufacturer's authorized
replacement part may adversely affect the
performance, durability or safety of this
product.
Use of other than original Scag replacement
parts will void the warranty.
When ordering parts, always give the model and serial
number of your mower. The serial number plate is located
on the frame of the machine between the engine and
transmission where shown in Figure 1-1.
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MODEL
SERIAL
Division of Metalcraft of Mayville, Inc.
Mayville, Wisconsin 53050
Patents Issued and Pending
SERIAL NUMBER
PLATE LOCATION
Mower Serial Number Plate LocationFigure 1-1.
GENERAL INFORMATION
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. See Section 8-1.
WARNING
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.
DIRECTION REFERENCE1.2
The “Right” and “Left”, “Front” and “Rear” of the machine
are referenced from the operator’s right and left when in
the normal operating position and facing the forward travel
direction.
SERVICING THE ENGINE AND DRIVE 1.3
TRAIN COMPONENTS
The detail servicing and repair of the engine and
transmission are not covered in this manual; only routine
maintenance and general service instructions are
provided. For service of these components during the
limited warranty period, it is important to contact your
Scag dealer or find a local authorized servicing agent
of the component manufacturer. Any unauthorized work
done on these components during the warranty period
may void your warranty.
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Section 1
SYMBOLS1.4
SYMBOL DESCRIPTION SYMBOL DESCRIPTION
Choke
Transmission
Parking Brake
48071S
Spinning Blade
On/Start
Spring Tension on Idler
Off/Stop
Oil
Falling Hazard
Thrown Object Hazard
Fast
Slow
Continuously Variable - Linear
Cutting Element - Basic Symbol
481039S
Pinch Point
Cutting Element - Engage
Hour meter/Elapsed Operating Hours
Cutting Element - Disengage
Crush Hazard.
CE Mark
Thrown Object Hazard
Keep Bystanders Away
Read Operator's Manual
3
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Section 2
INTRODUCTION2.1
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.
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 this machine can be downloaded by using
the model and serial number or use the contact form to
make your request. Please indicate the complete model
and serial number of your Scag product when requesting
replacement manuals.
SIGNAL WORDS2.2
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.
SIGNAL WORD:
It is a distinctive word found on the safety decals on the
machine and throughout this manual that alerts the viewer
to the existence and relative degree of the hazard.
DANGER
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 2.3
CONSIDERATIONS
NEVER allow children to operate this mower. Do not 1. allow adults to operate this machine without proper
instructions.
Do not mow when children and/or others are 2. present. Keep children out of the mowing area and
in the watchful care of a responsible adult other than
the operator. Be alert and turn machine off if a child
enters the area.
DO NOT allow children to ride or play on the 3. machine, it is not a toy.
Clear the area to be mowed of objects that could be 4. picked up and thrown by the cutter blades.
DO NOT carry passengers.5.
DO NOT operate the machine under the influence of 6. alcohol or drugs.
SAFETY INFORMATION
4
RSection 2
If the operator(s) or mechanic(s) cannot read English 7. or Spanish, it is the owner's responsibility to explain
this material to them.
DO NOT wear loose fitting clothing. Loose clothing, 8. jewelry or long hair could get tangled in moving
parts. Do not operate the machine wearing shorts;
always wear adequate protective clothing including
long pants. Wearing safety glasses, safety shoes and
a helmet is advisable and is required by some local
ordinances and insurance regulations.
WARNING
Always wear hearing protection. Operating this
machine over prolonged periods of time can
cause loss of hearing.
Keep the machine and attachments in good 9. 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.
WARNING
This machine is equipped with an interlock
system intended to protect the operator and
others from injury. This is accomplished by
preventing the engine from starting unless the
deck drive is disengaged, the neutral lock lever
is in the neutral lock position, and the operator
is in the operating position. The system shuts off
the engine if the operator steps off the operator
platform with the deck drive engaged or if the
neutral lock lever is placed in the drive position
(D) and the parking brake is applied. Never operate
equipment with the interlock system disconnected
or malfunctioning.
Be sure the interlock switches are functioning 10. correctly.
Fuel is flammable; handle it with care. Fill the fuel 11. tank outdoors. Never fill it indoors. Use a funnel or
spout to prevent spillage. Clean up any spillage
before starting the engine.
DO NOT add fuel to a running or hot engine. Allow 12. the engine to cool for several minutes before adding
fuel. Never fuel indoors or inside enclosed trailers.
Keep flammable objects (cigarettes, matches, etc.), 13. open flames and sparks away from the fuel tank and
fuel container. Use only approved containers.
Equipment must comply with the latest requirements 14. per SAE J137 and/or ANSI/ASAE S279 when driven
on public roads.
Do not operate without the side discharge chute 15. installed and in the down position or with an optional
grass catcher or mulch plate completely installed.
Check the blade mounting bolts at frequent intervals 16. for proper tightness.
Make sure all hydraulic fluid connections are tight 17. and all hydraulic hoses and lines are in good
condition before starting the machine.
OPERATION CONSIDERATIONS2.4
Know the function of all controls and how to stop 1. quickly.
WARNING
DO NOT operate on steep slopes. Under no
circumstances should the machine be operated
on slopes greater than 20 degrees. ALWAYS
FOLLOW OSHA APPROVED OPERATION.
Reduce speed and exercise extreme caution on 2. slopes and in sharp turns to prevent tipping or loss
of control. Be especially cautious when changing
directions on slopes.
Stay two cut widths away from slopes, drop offs, 3. ditches and retaining walls.
To prevent tipping or loss of control, start and stop 4. smoothly, avoid unnecessary turns and travel at
reduced speed.
When using any attachment, never direct the 5. discharge of material toward bystanders or allow
anyone near the machine while in operation.
Start the engine with the operator in the operating 6. position, cutter blades are disengaged, parking
brake is engaged, and the neutral lever is in neutral.
If the mower discharge ever plugs, shut off the 7. engine, remove the ignition key, and wait for all
movement to stop before removing the obstruction.
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Section 2
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.
Be alert for holes, rocks, roots and other hidden 8. hazards in the terrain. Keep away from any drop
offs. Beware of overhead obstructions (low limbs,
etc.), underground obstacles (sprinklers, pipes, tree
roots, etc.). Cautiously enter a new area. Be alert for
hidden hazards.
Disengage power to cutter deck before backing up. 9. 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.
DO NOT turn sharply. Use care when backing up.10.
Disengage power to cutter deck before crossing 11. roads, walks or gravel drives.
Mow only in daylight or good artificial light.12.
NEVER raise the deck with the blades engaged.13.
Take all possible precautions when leaving the 14. machine unattended, such as disengaging the
mower, stopping the engine, and removing the key.
Disengage power to the attachments when 15. transporting or when not in use.
The machine and attachments should be stopped 16. and inspected for damage after striking a foreign
object, and damage should be repaired before
restarting and operating the machine.
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.
DANGER
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.
Keep hands and feet away from cutter blades and 17. moving parts. Contact can injure.
Transport the mower using a heavy duty trailer 18. or truck. Insure the trailer or truck has all of the
necessary lighting and markings as required by
laws, codes, and ordinances. Secure a trailer with a
safety chain.
Be cautious when loading and unloading onto 19. trailers or trucks. Use only a full width ramp. Always
back on and drive off a trailer.
When transporting the mower, make sure the neutral 20. lock lever is in neutral lock, the engine is off with the
key removed, the parking brake is engaged and the
wheels have been blocked.
Tie the mower down securely using the tie down 21. points located on the front and rear of the machine.
See Figure 2-1 and 2-2. Secure using straps, chains,
cable, or ropes. Both front and rear straps must be
directed down and outward from machine.
TIE DOWN
POINT TIE DOWN
POINT
Front Tie Down PointsFigure 2-1.
6
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Section 2
TIE DOWN
POINT
TIE DOWN
POINT
Rear Tie Down PointsFigure 2-2.
Use care when approaching blind corners, shrubs, 22. trees, or other objects that may obscure vision.
NEVER leave the machine running unattended.23.
MAINTENANCE CONSIDERATIONS & 2.5
STORAGE
Never make adjustments to the machine with the 1. engine running unless specifically instructed to do
so. If the engine is running, keep hands, feet, and
clothing away from moving parts.
Place the neutral lock lever in neutral lock, engage 2. the parking brake, stop engine and remove key or
disconnect spark plug wire to prevent accidental
starting of the engine when servicing or adjusting
the machine. Wait for all movement to stop before
adjusting, cleaning or repairing.
Remove spark plug wire before making any repairs. 3.
Keep all nuts, bolts and screws tight, to ensure the 4. machine is in safe working condition. Check blade
mounting bolts frequently to be sure they are tight.
Do not change the engine governor settings or 5. overspeed the engine. See the engine operator's
manual for information on engine settings.
To reduce fire hazard, keep the cutting units, drives, 6. muffler and engine free of grass, leaves, excessive
grease, oil and dirt.
Park the machine on level ground.7.
NEVER allow untrained personnel to service the 8. machine.
Use care when checking blades. Use a Blade Buddy, 9. wrap the blade(s) or wear gloves and USE CAUTION
when servicing blades. Only replace blades. NEVER
straighten or weld blades.
Keep all parts in good working condition. Replace all 10. worn or damaged decals.
Use jack stands to support components when 11. required.
Carefully release pressure from components with
12. stored energy.
WARNING
Hydraulic fluid is under high pressure. Keep body
and hands away from pin holes or nozzles that
eject hydraulic fluid under high pressure. If you
need service on your hydraulic system, please
see your authorized Scag dealer. If hydraulic
fluid is injected into the skin, it must be surgically
removed within a few hours by a doctor or
gangrene may result.
Let the engine cool before storing.13.
DO NOT store the machine near an open flame.14.
Shut off fuel while storing or transporting.15.
DO NOT store fuel near flames or drain indoors.16.
USING A SPARK ARRESTOR2.6
The engine in this machine is not equipped with a spark
arrestor muffler. It is in violation of California Public
Resource Code Section 4442 to use or operate this engine
on or near any forest covered, brush covered or grass
covered land unless the exhaust system is equipped with
a spark arrestor meeting any applicable local or state laws.
Other states or federal areas may have similar laws. Check
with your state or local authorities for regulations pertaining
to these requirements.
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Section 2
SAFETY AND INSTRUCTIONAL DECALS2.7
483407
483402
483397
483406
2009 SVR Safety Decals
482291
484075
WARNING
Operation of this equipment
may create sparks that can
start res around dry
vegetation. A spark
arrestor may be required.
The operator should contact
local re agencies for laws
or regulations relating to
re prevention requirements.
483900
483900
(supplied with California models only)
483405
8
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Section 3
SPECIFICATIONS
ENGINE3.1
General Type ................................................................................................Heavy Duty Industrial/Commercial Gasoline
Brand ..................................................................................................................................................................Kawasaki
Horsepower:
(Scag Model SVR36A-20FX) .................................................................................. 20 HP (Spec. # FX600V-AS09-R)
(Scag Model SVR48V-24FX) ....................................................................................24 HP (Spec.# FX691V-AS11-R)
(Scag Model SVR52V-26FX) ....................................................................................26 HP (Spec.# FX730V-AS06-R)
Cylinders ..................................................................................................................................... 2 with Cast-Iron Sleeves
Governor ................................................Mechanical Type with Variable Speed Control Set At 3600 RPM (+/- 100 RPM)
Idle Speed:
Kawasaki ............................................................................................................................. 1550 RPM (+/- 150 RPM)
Fuel ...................................................................................... Non-Leaded Gasoline with a Minimum Octane Rating of 87
Oil Pump ...............................................................................................varies - see engine manufacturer's specifications
Starter:
Kawasaki ....................................................................................................Electric Starting with solenoid shift starter
ELECTRICAL3.2
Starter ..................................................................12-Volt Electric Ring Gear Type, Key and Solenoid Operated Interlock
Interlock Switches ............................................................Operator Presence, Mower Engagement (BBC), Neutral Lever
Instrument Panel ..........................Key Switch, Throttle Lever, Choke Lever, PTO Switch, Hour Meter and Neutral Lever
ENGINE DECK3.3
Drive System ............................................................................. Hydraulic Drive with Two Variable Displacement Pumps
and Two Cast-Iron High Torque Wheel Motors
Hydraulic Pumps ............................................................. Two Hydro-Gear model PG Series 10 cc. Hydraulic Pumps
with Dump Valves for movement without the engine running
Hydraulic Drive Motors .....................................................Two Hydro-Gear Model HGM 12P Cast-Iron Wheel Motors
Steering/Travel Control ..............................................Twin Lever Steering Control with Individual Control to Each Wheel
Parking Brake ...........................................................................Lever Actuated Linkage to Brakes on Both Drive Wheels
Wheels:
(2) Front Caster ..................................................................................................11 X 4-5 Flat-Free w/Roller Bearings
(2) Drive - ................................18 x 7.0-8 (36"), 20 x 10.5-8 (48" &52") Four-Ply Pneumatic Tubeless, Radius Edge
Tire Pressure:
Front Caster....................................................................................................................................................Flat-Free
Drive .................................................................................................................................................................. 12 PSI
Fuel Tank ........................................................................5-1/2 Gallon Seamless Polyethylene Tank with Large Opening,
Fuel Cap, Fuel Gauge and Integrated Cup Holder
Travel Speed:
Forward .............................................................................................................................................. 0 up to 8.5 MPH
Reverse .............................................................................................................................................. 0 up to 6.0 MPH
-NOTE- The machine will travel at 8.5 mph for transport purposes. For best cutting performance the forward travel
speed should be adjusted depending upon the cutting conditions.
CUTTER DECK3.4
Type ......................................................................................................................Out-Front design with anti-scalp rollers
Construction .............................................................................36 / 48 = 7-Gauge Deck Top, 7-gauge (3/16") Deck Skirt
52 = 10-Gauge Deck Top, 7-Gauge (3/16") Deck Skirt
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Section 3
True Cutting Width:
36 .........................................................................................................................................................35.5" (90.2 cm)
48 ..........................................................................................................................................................48" (122.0 cm)
52 ..........................................................................................................................................................52" (132.0 cm)
Cutting Height Adjustment ................................................................ Adjustment from, 1-1/2" to 4-1/2" in 1/4"increments
Cutter Blades ............................................................................. 0.197 in. Thick, Milled Edge, Wear Resistant Marbain™
Blade Engagement ............................................................Electric Blade Engagement Clutch with Control Panel Switch
Connected to the Cutter Deck through a Belt.
Discharge Opening ...............................................Extra Wide Discharge Opening with Spring-Loaded Discharge Chute
Discharge Chute ...................................................................................................Black, Polypropylene (Plastic), Flexible
Spindles .............................................................................Cast-Iron Housing, Tapered Roller Bearings with Top Access
Grease Fitting and Grease Overfill Relief Poppet
Spindle Pulleys ........................................................................................................Split Steel with Tapered Locking Hub
Cutter Deck Belts ................................................................................................................... B-section with Kevlar Cords
Electric Clutch Type ................................................................................................Ogura Heavy Duty PTO Clutch Brake
WEIGHTS AND DIMENSIONS SVR-36A SVR-48V SVR-52V3.5
Length (with foot plate down)...................................................... 71" .............................69-1/2'" ...........................71-3/4"
Length (with foot plate in transport position) ............................... 67" ............................. 65-1/2" ............................67-3/4
Tracking Width ......................................................................... 35-1/2" .......................... 41-3/4" ...........................41-3/4"
Overall Width w/chute down .................................................... 47-3/4" .......................... 61-1/4" ...........................65-1/4"
Overall Width w/chute up ......................................................... 37-1/4" .......................... 49-3/4" ...........................53-3/4"
Overall Height .......................................................................... 46-1/2" .......................... 47-1/2" ...........................47-1/2"
Operating Weight ....................................................................... 775# ..............................860# ................................ 860#
PRODUCTIVITY 36 48 52 3.6
Cutting Width 36" 48" 52"
Acres Per Day 14 18.6 20.2
The preceding chart will aid you in determining how many acres your Scag mower will cut per day. The chart is an
estimate based on 8 hours per day cutting time at 6 MPH with a 20% allowance for overlap and turns.
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Section 4
CAUTION
Do not attempt to operate this mower unless you
have read this manual. Learn the location and
purpose of all controls and instruments before
you operate this mower.
CONTROLS AND INSTRUMENT 4.1
IDENTIFICATION
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.
Ignition Switch (Figure 4-1).1. The ignition switch
is used to start the engine and has three positions;
OFF, ON, and START.
OPERATING INSTRUCTIONS
Mower Deck Switch (Figure 4-1). 2. Used to engage
and disengage the mower drive system. Pulling up
on the switch will engage the deck drive. Pushing
down on the switch will disengage the deck drive.
Engine Choke Control (Figure 4-1).3. Used to start
a cold engine.
Engine Throttle Control (Figure 4-1).4. Used to
control the engine speed. Pushing the lever forward
increases engine speed. Pulling the lever back
decreases engine speed. Full back position is the
IDLE position. Full forward is the cutting position.
Hourmeter (Figure 4-1).5. Indicates the number of
hours the engine has been operated. It operates
whenever the engine is running. Has preset
maintenance reminders for engine and hydraulic
system oil changes. Will start flashing scheduled
maintenance 2 hours before preset time and
continue flashing until 2 hours after. Automatically
resets.
RIGHT STEERING
CONTROL
DECK LIFT
PARKING BRAKE
CONTROL
CUTTING HEIGHT
ADJUSTMENT
NEUTRAL LOCK
CONTROL
LEFT STEERING
CONTROL
FUEL GAUGE
HOURMETER
MOWER DECK
SWITCH
IGNITION SWITCH
ENGINE CHOKE
CONTROL
ENGINE
THROTTLE
CONTROL
Controls and InstrumentsFigure 4-1.
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Section 4
Left Steering Control (Figure 4-1). 6. Used to control
the mower's left wheel when traveling forward or
reverse. See Section 4.5 for further details regarding
the mower's travel controls.
Right Steering Control (Figure 4-1). 7. Used to
control the mower's right wheel when traveling
forward or reverse. See Section 4.5 for further details
regarding the mower's travel controls.
Neutral Lock Lever (Figure 4-1). 8. Used to
disengage the mower drive in the neutral lock
position (N) or to engage to the mower's drive in the
drive position (D). See Section 4.5 for further details
regarding the mower's travel controls.
Parking Brake Control (Figure 4-1). 9. Used to
engage and disengage the parking brakes. Pull the
lever back to engage the parking brakes. Push the
lever forward to disengage the parking brakes.
Deck Lift Lever (Figure 4-1). 10. Used to raise and
lower the cutter deck.
Cutting Height Adjustment (Figure 4-1).11. Used to
set the cutter deck at the desired cutting height.
Fuel Tank Gauge (Figure 4-1). 12. Indicates the amount
of fuel in the fuel tank.
SAFETY INTERLOCK SYSTEM4.2
The mower is equipped with an interlock system
intended to protect the operator and others from injury.
This is accomplished by preventing the engine from
starting unless the deck drive is disengaged, the neutral
lock lever is in the neutral lock position, and the operator
is in the operating position. The system shuts off the
engine if the operator steps off the operator platform
with the deck drive engaged or if the neutral lock lever
is placed in the drive position (D) and the parking brake
is applied. Never operate equipment with the interlock
system disconnected or malfunctioning.
WARNING
Never operate the mower with the interlock
system disconnected or malfunctioning. Do not
disengage or bypass any switch; injury to yourself
and others or property damage could result.
INITIAL RUN-IN PROCEDURES4.3
FIRST DAY OF USE OR APPROXIMATELY 20 HOURS
Check all belts for proper alignment and wear at 2, 4 1. and 8 hours.
Change the engine oil and oil filter after the first 20 2. hours of operation. See Section 7.4.
Check oil level in the hydraulic system reservoir. 3. See Section 7.3
Check for loose hardware. Tighten as needed.4.
Check interlock system for proper operation. 5. See Section 4.2.
Check tire pressure. Adjust pressure if necessary. 6. See Section 7.10.
STARTING THE ENGINE4.4
CAUTION
DO NOT USE STARTING FLUIDS. Use of starting
fl uids in the air intake system may be potentially
explosive or cause a “runaway” engine condition
that could result in engine damage and/or
personal injury.
Be sure the fuel shutoff valve, located by the fuel 1. tank, is completely open. See Section 7.5.
Place the neutral lock lever in the neutral position 2. and disengage the the cutter blades .
Engage the parking brake.3.
If the engine is cold, choke the engine as needed.4.
Move the engine throttle control to about half engine 5. speed.
Turn the ignition key to the start position and start 6. the engine.
Allow engine to warm before operating the mower.7.
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Section 4
GROUND TRAVEL AND STEERING4.5
- IMPORTANT -
If you are not familiar with the operation of a
machine with lever steering and/or hydrostatic
transmissions, the steering and ground speed
operations should be learned and practiced in
an open area, away from buildings, fences, or
obstructions. Practice until you are comfortable
with the handling of the machine before attempting
to mow. Learn the operation on flat ground before
operating on slopes.
- IMPORTANT -
Start practicing with a slow engine speed and slow
forward travel.
Learn to feather the steering controls to obtain a
smooth operating action.
Practice operating the mower until you are
comfortable with the controls before proceeding
to mow.
FORWARD TRAVEL
To travel forward with the mower, disengage the parking
brake, place the neutral lock lever in the drive (D) position
and slowly push the steering control levers forward an equal
distance. The further the steering control levers are pushed
forward, the greater the forward speed will be. To increase
the speed, push the steering control levers forward and
to decrease speed, pull the steering control levers back.
See Figure 4-2.
To stop the forward travel completely, pull the steering
control levers back to the neutral position.
To steer the mower to the left while traveling forward,
pull the left steering control lever back. The further the
steering control is pulled back, the quicker the mower will
turn left. See Figure 4-3.
To steer the mower to the right while traveling forward,
pull the right steering control lever back. The further the
steering control is pulled back, the quicker the mower will
turn right. See Figure 4-3.
- NOTE -
Smooth operation of the steering control levers will
produce smooth mower operation. While learning
the operation of the steering controls, keep the
travel speed low.
REVERSE TRAVEL
CAUTION
Disengage power to the mower before backing
up. Do not mow in reverse unless absolutely
necessary and then only after observation of the
entire area behind the mower.
CAUTION
Before backing up, observe the rear for persons
and obstructions. Clear the area before backing
up. Possible injury or property damage could
occur.
To travel in reverse, pull both steering control handles
back. Keep the travel speed low while traveling in
reverse.
- NOTE -
The mower may not travel straight in reverse.
Slight adjustments may need to be made using
the steering controls.
To steer left while traveling in reverse, allow the left
steering control lever to move forward. The further
the control is allowed to move forward, the quicker the
mower will turn left.
To steer right while traveling in reverse, allow the right
steering control lever to move forward. The further
the control is allowed to move forward, the quicker the
mower will turn right.
To stop the reverse travel, allow the steering control levers
to return to the neutral position. If the mower is to be
parked, engage the parking brake and place the neutral
lock lever in the neutral (N) position.
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Section 4
PUSH FOR
FORWARD
PULL BACK
FOR REVERSE
“N” FOR NEUTRAL LOCK
“D” FOR DRIVE
NEUTRAL
Forward / Reverse ControlsFigure 4-2.
WHILE TRAVELING FORWARD,PULL BACK
ON RIGHT STEERING CONTROL TO STEER RIGHT
WHILE TRAVELING FORWARD, PULL BACK
ON LEFT STEERING CONTROL TO STEER LEFT
Steering ControlsFigure 4-3.
ENGAGING THE DECK DRIVE (CUTTER 4.6
BLADES)
Set the throttle at about 3/4 speed. Do not attempt to 1. engage the deck drive at high speed as this shortens
the electric clutch life — use only moderate engine
speed when engaging the deck drive.
Engage the deck drive by pulling out on the yellow
2. switch, located on the instrument panel, to the
engage position. See Figure 4-2.
390S0138
PULL UP TO ENGAGE
PUSH DOWN TO DISENGAGE
Cutter Engage SwitchFigure 4-4.
CAUTION
Disengage power to the mower before backing
up. Do not mow in reverse unless absolutely
necessary and then only after observation of the
entire are behind the mower.
CAUTION
Before backing up, observe behind the mower for
persons and obstructions. Clear the area before
backing up. Possible injury or property damage
could occur.
- NOTE -
A squealing noise may be heard when engaging
or disengaging the deck drive. It is caused by the
electric clutch plates meshing as the mower comes
up to speed. This is normal.
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Section 4
To disengage the deck drive, push the switch in to 3. the disengage position.
Always operate the engine at full throttle to properly
4. maintain cutting speed. If the engine starts to lug
down, reduce the forward speed and allow the
engine to operate at maximum RPM.
HILLSIDE OPERATION4.7
WARNING
DO NOT operate on steep slopes. Under no
circumstances should the machine be operated
on slopes greater than 20 degrees. ALWAYS
FOLLOW OSHA APPROVED OPERATION.
This mower has been designed for good traction and 1. stability under normal mowing conditions. However,
caution must be used when traveling on slopes,
especially when the grass is wet. Wet grass reduces
traction and steering control.
Stay two cut widths away from slopes, drop offs, 2. ditches and retaining walls.
To prevent tipping or loss of control, do not start or 3. stop suddenly, avoid unnecessary turns and travel
at reduced speed. If tires lose traction, disengage
blades and proceed slowly off the slope.
Avoid sudden starts when mowing uphill. Sudden 4. starts may cause the machine to tip backwards.
Loss of traction may occur when traveling down hill. 5. Weight transfers to the front of the machine and
may cause the drive wheels to slip causing loss of
braking or steering.
Never back down hill.6.
Keep tires properly inflated.7.
PARKING THE MOWER4.8
Park the machine on a flat, level surface only. Do not 1. park the machine on an incline.
Disengage the cutter blades.
2.
Shift the neutral lock lever into the neutral (N) 3. position.
Engage the parking brake.4.
Slow the engine to idle speed.5.
Turn the ignition key to the OFF position and remove 6. the key.
AFTER OPERATION4.9
Wash the entire mower after each use. Do not 1. use high pressure spray or direct the spray onto
electrical components.
- IMPORTANT -
Do not wash a hot or running engine. Cold water
will damage the engine. Use compressed air to
clean the engine if it is hot.
Keep the entire mower clean to inhibit serious heat
2. damage to the engine or hydraulic oil circuit.
Check the drive belts for proper alignment and any 3. signs of wear. Correct and adjust if necessary.
DANGER
To avoid injury from burns, allow the mower
to cool before removing the fuel tank cap and
refueling.
After the mower has cooled down, fill the fuel tank
4. with fresh, clean fuel at the end of every day of
operation. See Engine Owner's Manual for proper
octane requirements.
Check the tire pressure. Adjust pressure if 5. necessary.
REMOVING CLOGGED MATERIAL4.10
DANGER
ROTATING BLADES
NEVER PUT YOUR HANDS INTO THE DISCHARGE
CHUTE FOR ANY REASON!
Shut off the engine and remove the key and
only then use a stick or similar object to remove
material if clogging has occurred.
If the discharge chute becomes clogged, shut off
1. the engine and remove the ignition key. Using a stick
or similar item, dislodge the clogged material. Then
resume normal mowing.
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Section 4
MOVING MOWER WITH ENGINE 4.11
STOPPED
To “free-wheel” or move the mower around without the
engine running, place the dump valve levers in the FREE-
WHEEL position. Disengage the parking brake and move
the mower by hand. The dump valve levers must be
returned to the DRIVE position and torqued to 7-10 ft/lbs
to drive the mower.
RECOMMENDATIONS FOR MOWING4.12
Do not mow with dull blades. A dull blade will tear 1. grass, resulting in poor lawn appearance and
reduced mowing power.
WARNING
DO NOT operate without Discharge Chute,
Mulching Kit, or entire Grass Catcher properly
installed.
The discharge chute must not be removed and 2. must be kept in the lowest position to deflect grass
clippings and thrown objects downward. Direct the
side discharge away from sidewalks or streets to
minimize cleanup of clippings. When mowing close
to obstacles, direct the discharge away from the
obstacles to reduce the chance of property damage
by thrown objects.
Cut grass when it is dry and not too tall. Do not cut
3. grass too short (cut off 1/3 or less of existing grass
for best appearance). Mow frequently.
Keep mower and discharge chute clean.
4.
When mowing wet or tall grass, mow the grass twice. 5. Raise the mower to the highest setting for the first
pass and then make a second pass to the desired
height.
Use a slow travel speed for trimming purposes.6.
Operate the engine at full throttle for best cutting. 7. Mowing with a lower RPM causes the mower to tear
the grass. The engine is designed to be operated at
full speed.
Use the alternate stripe pattern for best lawn
8. appearance. Vary the direction of the stripe each
time the grass is mowed to avoid wear patterns in
the grass.
ADJUSTING CUTTING HEIGHT4.13
The mower deck can be adjusted from a height of 1-1/2
inch to 4-1/2 inches at 1/4-inch intervals. To adjust the
cutting height:
WARNING
DO NOT adjust the cutting height with the mower
blades rotating. Disengage the power to the cutter
blades, put the neutral lock lever in the neutral
position, apply the parking brake and then adjust
cutting height.
Disengage the power to the cutter blades.
1.
Pull on the cutter deck lift lever lever all the way 2. backward until it locks in place. See Figure 4-5.
Insert the lanyard pin into the cutting height index
3. at the desired cutting height. Pull backward on the
cutter deck lift lever, push and hold the lock button
See Figure 4-5. Slowly release the cutter deck lift
lever. A deck height decal is located on the cutting
height index as an aid in adjusting the deck to the
desired height.
CUTTER DECK
LIFT LEVER
LANYARD PIN
Adjusting Cutting HeightFigure 4-5.
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Section 5
CONDITION CAUSE CURE
STRINGERS - OCCASIONAL
BLADES OF UNCUT GRASS
Width of Deck
SGB020
Low engine RPM Run engine at full RPM
Ground speed too fast Slow speed to adjust for conditions
Wet grass Cut grass after it has dried out
Dull blades, incorrect sharpening Sharpen blades
Deck plugged, grass accumulation Clean underside of deck
Belts slipping Adjust belt tension
STREAKING - STRIPS OF
UNCUT GRASS IN CUTTING
PATH
Width of Deck
SGB018
Dull, worn blades Sharpen blades
Incorrect blade sharpening Sharpen blades
Low engine RPM Run engine at full 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
STREAKING - STRIPS OF
UNCUT GRASS BETWEEN
CUTTING PATHS
Width
of
Deck
Width
of
Deck
SGB019
Not enough overlapping between rows Increase the overlap of each pass
TROUBLESHOOTING CUTTING CONDITIONS
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Section 5
CONDITION CAUSE CURE
UNEV E N CUT ON FL AT
GROUND - WAVY HIGH-LOW
APPEARANCE, SCALLOPED
CUT, OR ROUGH CONTOUR
Width of Deck
SGB020
Lift worn from blade Replace blade
Blade upside down Mount with cutting edge toward ground
Deck plugged, grass accumulation Clean underside of deck
Too much blade angle (deck pitch) Adjust pitch and level
Deck mounted improperly See your authorized SCAG dealer
Bent spindle area See your authorized SCAG dealer
Dull blade Sharpen blade
UNEVEN CUT ON UNEVEN
GROUND - WAVY APPEARANCE,
HIGH-LOW SCALLOPED CUT,
OR ROUGH CONTOUR
Width of Deck
SGB021
Uneven ground May need to reduce ground speed, raise
cutting height, and/or change direction
of cut
SLOPING RIDGE ACROSS
WIDTH OF CUTTING PATH
Width of Deck
SGB023
Tire pressures not equal Check and adjust tire pressure
Wheels uneven Check and adjust tire pressure
Deck mounted incorrectly See your authorized SCAG dealer
Deck not level side-to side Check for level and correct
TROUBLESHOOTING CUTTING CONDITIONS (CONT'D)
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Section 5
CONDITION CAUSE CURE
SCALPING - BLADES HITTING
DIRT OR CUTTING VERY CLOSE
TO THE GROUND
Width of Deck
SGB022
Low tire pressures Check and adjust pressures
Ground speed too fast Slow speed to adjust for conditions
Cutting too low May need to reduce ground speed, raise
cutting height, change direction of cut,
and/or change pitch and level
Rough terrain May need to reduce ground speed, raise
cutting height, and/or change direction
of cut
Ground speed too fast Slow speed to adjust for conditions
Wet grass Cut grass after it has dried out
STEP CUT - RIDGE IN CENTER
OF CUTTING PATH
Width of Deck
SGB024
Blades not mounted evenly Adjust pitch and level
Bent blade Replace blade
Internal spindle failure See your authorized SCAG dealer
Mounting of spindle incorrect See your authorized SCAG dealer
SLOPE CUT - SLOPING RIDGES
ACROSS WIDTH OF CUTTING
PATH
Width of Deck
SGB025
Bent spindle mounting area See your authorized SCAG dealer
Internal spindle failure See your authorized SCAG dealer
Bent deck housing See your authorized SCAG dealer
TROUBLESHOOTING CUTTING CONDITIONS (CONT'D)
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Section 6
PARKING BRAKE ADJUSTMENT6.1
WARNING
DO NOT operate the mower if the parking brake
is not operable. Possible severe injury could
result.
The parking brake linkage should be adjusted whenever
the parking brake lever is placed in the “ENGAGE” position
and the parking brake will allow the mower to move. If
the following procedures do not allow you to engage the
parking brake properly, contact your Scag dealer for further
brake adjustments.
Park the machine on a flat, level surface. Block the
1. wheels to prevent the machine from moving.
CAUTION
Adjust the brake only enough to hold the machine.
Excessive force may cause damage to the
machine or brake components.
Release the parking brake lever.
2.
Look for a gap (approximately 1/4") between the 3. right side drive tire and the brake bellcrank. See
Figure 6-1. Loosen the jam nuts and adjust the brake
linkage rod until the there is a 1/4" gap between the
tire and right hand brake bellcrank. The right hand
side must be ajusted first before adjusting the brake
weldment on the left side.
With the brake released, loosen the mounting bolt 4. securing the left hand brake weldment to the brake
bellcrank. Adjust the left hand brake weldment until
there i a 1/4" gap between the tire and the brake
weldment
- NOTE -
If this procedure does not achieve proper brake
adjustment, please contact your authorized Scag
dealer.
ADJUSTMENTS
ADJUST LINKAGE
FOR 1/4” GAP
1/4” GAP
NEEDED HERE
LOOSEN
BOLT
LOOSEN
JAM NUT
LOOSEN
JAM NUT
ADJUST LINKAGE
FOR 1/4” GAP ON
RIGHT SIDE
Brake AdjustmentFigure 6-1.
TRAVEL ADJUSTMENT6.2
Neutral or tracking adjustments will need to be made if:
The steering control is in the neutral position and 1. the machine creeps forward or backward. (Neutral
Adjustment)
The steering control is in the full forward position 2. and the mower pulls to one side or the other when
traveling in a forward position. (Tracking Adjustment).
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Section 6
NEUTRAL ADJUSTMENT
-NOTE-
Neutral has been set by your Scag dealer at the
time of set up and normally does not need to be
adjusted. If, however, you find that the neutral
has come out of adjustment, follow the procedure
below.
Be sure the dump valves are in the run position and 1. the speed control lever is in the neutral lock position.
With an operator in the operating position, park the
2. machine on a flat level surface, start the engine and
disengage the parking brake.
Run the engine at full operating speed and check if 3. the machine creeps forward or backwards.
Adjust the RH wheel by loosening the jam nuts on 4. the steering control rod and turning the rod until the
drive wheel turns in the forward direction. Turn the
rod back until the drive wheel stops moving. Turn the
rod an additional 1/2 turn. See Figure 6-2.
LOOSEN
JAM NUT
LOOSEN
JAM NUT
ADJUST
HERE
Tracking Adjustment Right SideFigure 6-2.
Repeat for the LH wheel. See Figure 6-3.5.
LOOSEN
JAM NUT
ADJUST
HERE
LOOSEN
JAM NUT
Figure 6-3.
Actuate the steering control levers forward and 6. reverse several times and return them to the neutral
position.
Check that the drive wheels remained in neutral and 7. readjust if necessary.
Check that the steering control levers hit the stop 8. before the pumps reach full stroke. Adjust as
needed.
TRACKING ADJUSTMENT
CAUTION
Stop the engine and remove the key from the
ignition before making any adjustments. Wait
for all moving parts to come to a complete stop
before beginning work.
CAUTION
The engine and drive unit can get hot during
operation causing burn injuries. Allow the engine
and drive components to cool before making any
adjustments.
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Section 6
-NOTE-
Before proceeding with this adjustment, be sure
that the caster wheels turn freely and that the tire
pressure in the drive wheels is correct. If the tire
pressure is not correct, the machine will pull to the
side with the lower pressure.
If at full speed the mower pulls right, it is an
1. indication that the left wheel is turning faster than
the right wheel. To adjust this condition, proceed as
follows:
A. Stop the machine and place the steering control
levers in the neutral position. Loosen the lock nuts
securing the ball joints at each end of the LH steering
control rod. Rotate the control rod to lengthen the rod
and tighten the lock nuts. This will cause the control
rod to stroke the LH pump less, slowing down the LH
wheel. See Figure 6-3.
- NOTE -
If after making the adjustment as outlined in step
1A, the machine creeps forward or backward, the
neutral adjustment must be made as described
on page 20.
If at full speed the mower pulls left, it is an indication
2. that the right wheel is turning faster than the left
wheel. To adjust this condition, proceed as follows:
A. Stop the machine and place the steering control
levers in the neutral position. Loosen the lock nuts
securing the ball joints at each end of the RH steering
control rod. Rotate the control rod to lengthen the rod
and tighten the lock nuts. This will cause the control
rod to stroke the RH pump less, slowing down the RH
wheel. See Figure 6-2.
- NOTE -
If after making the adjustment as outlined in step
2A, the machine creeps forward or backward, the
neutral adjustment must be made as described
on page 20.
THROTTLE CONTROL AND CHOKE 6.3
ADJUSTMENTS
These adjustments must be performed by your Scag dealer
to ensure proper and efficient running of the engine. Should
either need adjustment, contact your authorized Scag
service center.
BELT ADJUSTMENTS6.4
WARNING
Before removing any guards, shut the engine off
and remove the ignition key. Wait for all moving
parts to come to a complete stop before beginning
work.
All drive belts and cutter deck belts are spring loaded and
self-tensioning. The belts should be checked periodically
for proper alignment and wear.
BELT ALIGNMENT6.5
Belt alignment is important for proper performance of
your Scag mower. If you experience frequent belt wear
or breakage, see your authorized Scag service center for
belt adjustment.
CUTTER DECK ADJUSTMENTS6.6
Cutter deck level, pitch and height are set at the factory.
However, if these adjustments should ever need to be
made, the following procedures will aid in obtaining the
proper cutter deck adjustment.
- NOTE -
Before proceeding with the cutter deck adjustments,
be sure all tires are properly inflated.
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Section 6
CUTTER DECK LEVEL
The cutter deck should be level from side-to-side for proper
cutting performance. To check for level, be sure that the
mower is on a flat, level surface, the tires are properly inflated
and the cutter deck is set at the most common cutting height
that you will use. On the LH side of the machine, check the
distance from the top of the cutter deck to the floor. Next
check the distance from the top of the cutter deck to the floor
on the RH side of the machine. Both measurements should
be the same. If the two measurements are different, the
cutter deck level must be adjusted as follows:
On the front RH side of the cutter deck locate the
1. cutter deck adjustment levers. Loosen the elastic stop
nuts securing the cutter deck adjustment levers on the
front and rear of the cutter deck. See Figure 6-4.
CUTTER DECK ADJUSTMENT
BOLT
CUTTER DECK ADJUSTMENT
BOLT
Cutter Deck Level AdjustmentFigure 6-4.
Turn the adjustment bolts on the front and rear
2. cutter deck adjustment levers clockwise to raise
or counter-clockwise to lower the RH side until the
distance from the top of the cutter deck to the floor is
the same as the measurement on the LH side of the
machine.
Tighten the two elastic stop nuts to secure the cutter 3. deck in the proper position.
CUTTER DECK PITCH
The pitch of the cutter deck should be equal between
the front and rear of the cutter deck for proper cutting
performance. To check for proper deck pitch, be sure
that the mower is on a flat, level surface and the tires are
properly inflated.
Check the distance from the top of the cutter deck to the
floor at the rear RH side of the cutter deck. Next check
the distance from the top of the cutter deck to the floor at
the front RH side of the cutter deck. The measurement at
the front of the cutter deck should be the same as the rear
of the deck. Make these measurements at the LH side of
the cutter deck also. If the measurement at the front of
the deck is not the same, the cutter deck pitch must be
adjusted as follows:
Loosen the elastic stop nuts securing the deck level 1. links on front of the cutter deck on both sides See
Figure 6-5.
Turn the adjustment bolts on both side either 2. clockwise to raise or counterclockwise to lower the
front of the cutter deck until the measurements are
equal. Tighten the elastic stop nuts.
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Section 6
CUTTER DECK ADJUSTMENT
BOLT
CUTTER DECK ADJUSTMENT
BOLT
Cutter Deck Pitch AdjustmentFigure 6-5.
CUTTER DECK HEIGHT
The cutter deck height adjustment is made to ensure
that the cutter deck is cutting at the height indicated on
the cutting height index gauge. To check for proper deck
height, be sure that the mower is on a flat, level surface,
shut off the engine and remove the igition key. Make sure
the tires are properly inflated.
Check the cutter deck cutting height by placing the 1. lanyard pin in the 3" position on the cutting height
index. Release the deck from the transport position
and allow the deck to move to the 3" cutting height
position.
DECK HEIGHT
CONTROL ROD
LOOSEN HERE
Cutter Deck Height AdjustmentFigure 6-6.
Rotate the cutter blade on the left side of the cutter 2. deck. Position the cutter blade so it is facing "front to
back" on the machine.
WARNING
Always wear proper hand and eye protection when
working with cutter blades.
Check the measurement from the floor to the cutter
3. blade tip at the rear of the left side blade. If the
measurement is not at 3", an adjustment can be
made using the deck height control rod.
Adjust by loosening the jam nuts on the deck height 4. control rod. Turn the deck height control rod until the
3" setting is acheived. Hold the deck height control
rod and tighten the jam nuts. See Figure 6-6.
Once the adjustment is made to the deck height 5. control rod, Check the measurement from the floor to
the cutter blade tip at the front of the left side blade.
If the measurement is not at 3", an adjustment must
be made using the cutter deck adjustment lever.
Adjust as follows:
A. Loosen the elastic stop nuts securing the deck
level links on front of the cutter deck on both sides (See
Figure 6-4 and Figure 6-5 for Cutter Deck Adjustment
Lever Location).
B. Turn the adjustment bolts on both side either
clockwise to raise or counterclockwise to lower the front
of the cutter deck until the measurements are equal.
Tighten the elastic stop nuts.
24
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Section 6
Rotate the cutter blade on the right side of the cutter 6. deck. Position the cutter blade so it is facing "front to
back" on the machine.
Check the measurement from the floor to the cutter
7. blade tip at the front and rear of the right side blade.
If the measurement is not at 3", an adjustment must
be made using the cutter deck adjustment lever.
Adjust as follows:
A. Loosen the elastic stop nuts securing the deck level
links on front of the cutter deck on both sides (See
Figure 6-4 and Figure 6-5 for Cutter Deck Adjustment
Lever Location).
B.Turn the adjustment bolts on both side either
clockwise to raise or counterclockwise to lower the
cutter deck until the measurements are equal. Tighten
the elastic stop nuts.
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 seven (7) different
positions for optimum performance.
A. 3-1/2" or 3-3/4" Position - See Figure 6-7. For very
tall, wiry or tough-to-cut grass.
B. 4" (factory setting), 4-1/4" or 4-1/2" Position - See
Figure 6-7. For general purpose cutting. This gives the
best mix of cutting performance in all types of grass.
C. 4-3/4" or 5-1/4" Position - See Figure 6-7. Placing
the baffle in either the 4-3/4" or 5-1/4" setting will
enhance fall cutting (leaf pickup) and reduce cutter
deck "blowout".
To adjust the Custom-Cut Baffle height:
Park the machine on a flat surface, apply the parking 1. brake, shut off the engine and remove the key.
Place the cutter deck in the transport position.2.
Remove the hardware securing the Custom-Cut 3.
Baffle to the cutter deck.
- NOTE -
Hardware location used in the illustrations are for
reference only. Location of hardware may vary
depending on cutter deck size.
Move the Custom-Cut Baffle to desired position. See
4. Figures 6-7.
Reinstall the mounting hardware. Torque hardware to
5. 39 ft-lbs.
25
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Section 6
12
34
A
B
12
34
A
B
Custom-Cut Baffle Adjustment
Mounting Slot Selected Mounting Hardware Location
Slot “A” Hole 1 Hole 2 Hole 3 Hole 4
Height (inches) 3-3/4” 4-1/4” 4-3/4” 5-1/4”
Slot “B” Hole 2 Hole 3 Hole 4
Height (inches) 3-1/2” 4” 4-1/2”
Custom-Cut Baffle AdjustmentFigure 6-7.
26
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Section 6
ADJUSTMENT NUTS
ADJUSTMENT NUTS
Clutch Air Gap AdjustmentFigure 6-10.
This adjustment should be done every 500 hours of
operation or annually, whichever comes first. In cases
where the machine is heavily used, airgap settings should
be checked more often.
If the air gap is too narrow, the clutch armature may drag
when disengaged, resulting in premature failure.
If the air gap is too wide, the clutch may be slow to engage
as the magnet must pull the armature in from a greater
distance.
FRONT WEIGHT ADJUSTMENT6.8
This mower has been designed for good traction and
stability under normal mowing conditions. However, caution
must be used when traveling on slopes, especially when
the grass is wet. Wet grass reduces traction and steering
control.
The 36" model comes standard with two (2) weights
installed and the 48" and 52" models come standard with
one (1) weight installed. All models must not be operated
with less than the number of weights listed above.
ELECTRIC CLUTCH ADJUSTMENT6.7
The electric clutch serves two functions in the operation of
the mower. In addition to starting and stopping the power
flow to the cutter blades, the clutch also acts as a brake to
assist in stopping blade rotation when the PTO is switched
off or the operator presence circuit is interrupted.
When the clutch is disengaged, the air gap between the
armature and rotor must be adjusted to fifteen thousandths
of an inch, 0.015, for proper operation. The airgap
adjustment is made at three bolts on the clutch. There are
three inspection windows, one next to each adjusting bolt.
See Figure 6-8.
INSPECTION WINDOW (x3)
Clutch Air Gap AdjustmentFigure 6-8.
Locate the inspection windows on the clutch.1.
Place a 0.015 feeler gauge in the slot between the 2. rotor and the armature. See Figure 6-9.
INSERT 0.015 FEELER GAUGE HERE
Clutch Air Gap AdjustmentFigure 6-9.
Tighten or loosen the adjusting bolt as needed to 3. acheive the 0.015 inch airgap. See Figure 6-10.
Perform this operation at all three inspection
windows.
27
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Section 6
Additional weight can be added to the front of the machine
if needed. See Figure 6-11.
Remove the front belt from the machine.1.
Remove the mounting hardware securing the 2. wieght(s) to the front of the machine.
Add the desired weight to the machine and secure
3. using the recommended hardware. See Figure 6-11.
Reinstall the front belt cover.4.
1 - WEIGHT FOR 48”/52”
2 - WEIGHTS FOR 36”
3 - OPTIONAL FOR ALL MODELS
1/2-13 ELASTIC
STOP NUT
1/2-13 x 2-3/4” (ONE WEIGHT)
1/2-13 x 4-1/2” (TWO WEIGHTS)
1/2-13 x 5-1/2” (THREE WEIGHTS)
Front Weight AdjustmentFigure 6-11.
OPERATOR CUSHION ADJUSTMENT6.9
The operator cushion can be mounted in twelve (12)
different positions to fit a wide range of operators. See
Figure 6-12.
Remove the hardware securing the operator cushion 1. to the mounting bracket and set the cushion aside.
Remove the hardware securing the mounting 2. bracket.
Install and secure the mounting bracket in the 3. desired operating location. Locations A, B or C for
lower mounting positions or rotate the mounting
bracket 180 degree and install in G for higher
mounting positions. See Figure 6-12.
Install and secure the operator cushion in the 4. desired location. Locations D, E or F for the lower
mounting positions or H, I or J for the higher
mounting positions. See Figure 6-12.
28
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Section 6
A
A
B
B
C
C
D
D
E
E
F
F
H
I
J
H
I
J
G
THREE MOUNTING
BRACKET LOCATIONS
OPERATOR CUSHION - LOW ADJUSTMENTS
OPERATOR CUSHION - HIGH ADJUSTMENTS
THREE OPERATOR
CUSHION LOCATIONS
ONE MOUNTING
BRACKET LOCATION
THREE OPERATOR
CUSHION LOCATIONS
Operator Cushion AdjustmentFigure 6-12.
29
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Section 7
MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS7.1
HOURS
PROCEDURE COMMENTS
BREAK-IN
(FIRST 10) 8 20 40 100 200 500
XCheck all hardware for tightness
XCheck hydraulic oil level See paragraph 7.3
XCheck belts for proper alignment See paragraph 6.5
XCheck hydraulic hoses for leaks Use extreme caution when
checking the hydraulic hoses.
See paragraph 2.5
XCheck engine oil level See paragraph 7.4
X*Clean mower
XCheck tire pressure See paragraph 7.9
X*Clean air filter element See paragraph 7.6
XCheck condition of blades See paragraph 7.8
XApply grease to fittings See paragraph 7.2
XCheck safety interlock system See paragraph 4.2
XChange engine oil and filter See paragraph 7.4
XCheck belts for proper alignment See paragraph 6.5
XCheck belts for proper alignment See paragraph 6.5
X*Clean engine air filter See engine operator's
manual
XApply grease to fittings See paragraph 7.2
XCheck all hardware for tightness
XChange engine oil See paragraph 7.4
X*Clean air cleaner element See paragraph 7.6
* Perform these maintenance procedures more frequently under extreme dusty or dirty conditions
MAINTENANCE
30
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Section 7
MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS (CONT'D)
HOURS
PROCEDURE COMMENTS
BREAK-IN
(FIRST 10) 8 40 100 200 500
XCheck hardware for tightness
XApply grease to fittings See paragraph 7.2
XCheck hydraulic oil level See paragraph 7.3
XChange engine oil See paragraph 7.4
XChange engine oil filter See paragraph 7.4
XReplace engine fuel filter See paragraph 7.5
XApply grease to fittings See paragraph 7.2
XDrain hydraulic system and
replace oil and filter See paragraph 7.3
XAdjust electric PTO clutch See paragraph 6.6
LUBRICATION7.2
GREASE FITTING LUBRICATION CHART
LOCATION LUBRICATION INTERVAL LUBRICANT NO. OF
PLACES
1 - Caster Wheel Pivot 100 Hours / Bi-Weekly Chassis Grease 2
2 - Caster Wheel Bearings 100 Hours / Monthly Chassis Grease 2
3 - Brake Actuator Lever 200 Hours / Bi-Weekly Chassis Grease 1
4 - Cutter Deck Spindles 40 Hours / Weekly + US Lithium MP White Grease 2 / 3
5 - Cutter Deck Pusharms 100 Hours / Monthly Chassis Grease 2
6 - Cutter Deck Bellcranks 100 Hours / Monthly Chassis Grease 2
31
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Section 7
Lubrication Fitting Points Figure 7-1.
GREASE FITTING LUBRICATION
Lubricant Interval
Lithium MP White Grease 2125
(40 Hours/Weekly)
Chassis Grease
(100 Hours/Bi-weekly)
Chassis Grease
(200 Hours/Monthly)
2
1
5
4
4
3
5
2
1
6
6
32
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Section 7
B. CHANGING HYDRAULIC OIL
The hydraulic oil should be changed after every 500 hours
or annually, whichever occurs first. The oil should also be
changed if the color of the fluid has become black or milky.
A black color and/or a rancid odor usually indicates possible
overheating of the oil, and a milky color usually indicates
water in the hydraulic oil.
- IMPORTANT -
The hydraulic oil should be changed if you notice
the presence of water or a rancid odor to the
hydraulic oil.
Park the mower on a level surface, stop the engine 1. and remove the ignition key.
Place a suitable container under the hydraulic 2. oil filter. Remove the fill cap from the reservoir.
Remove the drain plug from the fitting on the filter
base. See Figure 7-3. Allow the fluid to drain into the
container and properly discard it.
Re-install the drain plug into the tee fitting and be 3. sure it is tight.
- NOTE -
Before refilling the hydraulic oil reservoir the
hydraulic oil filter should be changed as outlined
in Procedure C "Changing Hydraulic Oil Filter
Element".
Fill the reservoir to full 2-1/4" inches below the filler 4. neck with 20W50 motor oil.
Replace the reservoir fill cap. Start the engine and 5. drive forward and backward for two minutes. Check
the oil level in the reservoir. If necessary, add oil to
the reservoir.
HYDRAULIC SYSTEM7.3
A. CHECKING HYDRAULIC OIL LEVEL
The hydraulic oil level should be checked after the first 8
hours of operation. Thereafter, check the oil after every
200 hours of machine operation or monthly, whichever
occurs first.
- IMPORTANT -
If the oil level is consistently low, check for leaks
and correct immediately.
Wipe dirt and contaminants from around the
1. reservoir cap. Remove the cap from the hydraulic oil
reservoir.
Visually check the level of hydraulic oil. Hydraulic 2. oil must be at least 2-1/4" inches from top of the
filler neck. If the level cannot be determined visually,
use a clean tape measure to check the level. If the
fluid is low, add 20W50 motor oil. DO NOT overfill;
(overfilling the oil reservoir may cause oil seepage
around the cap area).
Clean the fill cap and install it onto the reservoir.3.
HYDRAULIC OIL
RESERVOIR
Hydraulic Oil ReservoirFigure 7-2.
33
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Section 7
B. 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 monthly, whichever occurs first. Refer to the
Engine Operator’s Manual furnished with this mower for
instructions.
ENGINE OIL
FILLER & DIPSTICK
ENGINE OIL
DRAIN
ENGINE OIL
FILTER
Drain Plug, Dipstick and Oil Filter Figure 7-4. Location
C. CHANGING ENGINE OIL FILTER
After the first 20 hours of operation, replace the engine oil
filter. Thereafter, replace the oil filter after every 200 hours
of operation or every month, whichever occurs first. Refer
to Engine Operator’s Manual for instructions.
DANGER
To avoid injury from burns, allow the mower to
cool before changing the oil and removing the
filter.
HYDRAULIC OIL
FILTER
DRAIN PLUG
Hydraulic Oil FilterFigure 7-3.
C. CHANGING HYDRAULIC OIL FILTER
ELEMENT
The hydraulic oil filter should be changed after every 500
hours of operation or annually, whichever occurs first.
Remove the oil filter element. See Figure 7-3.1. Properly discard the oil filter element. Fill the new
filter with clean oil and install the filter. Hand tighten
only.
Run the engine at idle speed with the speed control 2. lever in neutral for five minutes.
Check the oil level in the hydraulic tank. Hydraulic
3. oil must be at the full tab below the filler neck. If
necessary, add SAE 20w50 motor oil.
ENGINE OIL7.4
A. CHECKING ENGINE CRANKCASE OIL LEVEL
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.
34
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Section 7
ENGINE FUEL SYSTEM7.5
DANGER
To avoid injury from burns, allow the mower
to cool before removing the fuel tank cap and
refueling.
A. FILLING THE FUEL TANK
Fill the fuel tank at the beginning of each operating day to
within one (1) inch below the bottom of the filler neck. Do not
overfill. Use clean, fresh unleaded gasoline with a minimum
octane rating of 87 and a maximum of 10% Ethanol.
DO NOT use E85 Fuel. Using E85 Fuel will cause severe
damage to the engine.
To avoid personal injury or property damage, use extreme
care in handling gasoline. Gasoline is extremely flammable
and the vapors are explosive.
Extinguish all cigarettes, cigars, pipes and other
1. sources of ignition.
Use only an approved gasoline container.
2.
Never remove the gas cap or add fuel with the 3. engine running. Allow the engine to completely cool
before fueling.
Never fuel the machine indoors or in an enclosed 4. trailer.
Never store the machine or fuel container where 5. there is an open flame, spark or pilot light such as on
a water heater or other appliances.
Never fill containers inside a vehicle or on a truck 6. or trailer bed with a plastic liner. Always place
containers on the ground away from your vehicle
before filling.
Remove the machine from the truck or trailer and
7. fuel on the ground. If this is not possible, then refuel
the machine with a portable container, rather than
from a gasoline dispenser nozzle.
Keep the nozzle in contact with the rim of fuel tank 8. or container opening at all times until fueling is
complete. Do not use a nozzle lock-open device.
If fuel is spilled on clothing, change clothing
9. immediately and wash affected skin.
Replace gas cap and tighten securely.
10.
B. REPLACING IN-LINE FUEL FILTER
ELEMENTS
The engine fuel filter should be replaced after every 500
hours of operation or annually, whichever occurs first. See
Figure 7-5.
Close the shutoff valve. Remove the two clamps 1. securing the fuel filter to the fuel hose. Remove the
fuel filter.
Install a new fuel filter. Be sure it is installed in the
2. proper direction. Secure to the fuel hose using the
two clamps.
ENGINE FUEL
FILTER
Fuel FilterFigure 7-5.
ENGINE AIR CLEANER7.6
A. CLEANING AND/OR REPLACING AIR
CLEANER ELEMENT
For any air cleaner, the operating environment dictates
the air cleaner service periods. Inspect and clean the air
cleaner element after every 100 hours of operation or
monthly, whichever occurs first and replace the element
if required. See Engine Owner's Manual for service
information.
35
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Section 7
- NOTE -
In extremely dusty conditions it may be necessary
to check the element once or twice daily to prevent
engine damage.
Snap open the two clips securing the air cleaner
1. cover to the air cleaner box. Remove the air cleaner
cover, clean the duck bill vent of any dust or debris
and set the cover aside.
Remove the air cleaner and inspect.2.
Clean or replace the air cleaner as recommended 3. by the engine manufacturer.Replace the air cleaner
cover and secure.
Replace the air filter cover and be sure to snap the
4. two clips closed.
BATTERY - ELECTRIC START MODELS7.7
WARNING
Lead-acid batteries produce flammable and
explosive gases. To avoid personal injury when
checking, testing or charging batteries, DO NOT
use smoking materials near batteries. Keep arcs,
sparks and flames away from batteries. Provide
proper ventilation and wear safety glasses.
WARNING
Battery posts, terminals, and related accessories
contain lead and lead compounds, chemicals
known to cause cancer and reproductive harm.
Wash hands after handling.
WARNING
Electric storage battery fluid contains sulfuric
acid which is POISON and can cause SEVERE
CHEMICAL BURNS. Avoid contact of fluid with
eyes, skin, or clothing. Use proper protective gear
when handling batteries. DO NOT tip any battery
beyond 45° angle in any direction. If fluid contact
does occur, follow first aid suggestions below.
BATTERY ELECTROLYTE FIRST AID
External Contact — Flush with water.
Eyes — Flush with water for at least 15 minutes
and get medical attention immediately.
Internal — Drink large quantities of water. Follow
with Milk Of Magnesia, beaten egg, or vegetable
oil. Get medical attention immediately. In case of
internal contact, DO NOT give fluids that would
induce vomiting.
A. CHARGING THE BATTERY
Refer to the battery charger’s manual for specific
instructions.
Under normal conditions the engine’s alternator will have
no problem keeping a charge on the battery. If the battery
has been completely discharged for a long period of time,
the alternator may not be able to recharge the battery, and
a battery charger will be required.
DO NOT charge a frozen battery. It may explode and cause
injury. Let the battery warm before attaching a charger.
Whenever possible, remove the battery from the mower
before charging and make sure the electrolyte covers the
plates in all cells.
WARNING
BATTERIES PRODUCE EXPLOSIVE GASES.
Charge the battery in a well ventilated space so
gases produced while charging can dissipate.
36
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Section 7
Charging rates between 3 and 50 amperes are satisfactory
if excessive gassing or spewing of electrolyte does not
occur or the battery does not feel excessively hot (over
125°F). If spewing or gassing occurs or the temperature
exceeds 125°F, the charging rate must be reduced or
temporarily stopped to permit cooling.
B. JUMP STARTING
The booster battery must be a 12 volt type. If a 1. vehicle is used for jump starting, it must have a
negative ground system.
When connecting the jumper cables, connect the
2. positive cable to the positive battery post, then
connect the negative cable to the negative battery
post.
CUTTER BLADES7.8
A. BLADE INSPECTION
Remove the ignition key before servicing the blades.1.
Raise the mower deck to the highest position. Place 2. the lanyard pin in the highest cutting height position
to prevent the cutter deck from falling.
WARNING
Always wear proper hand and eye protection when
working with cutter blades.
Check the cutter blades for straightness. If the cutter 3. blades appear bent, they will need to be replaced.
WARNING
Do not attempt to straighten a bent blade, and
never weld a broken or cracked blade. Always
replace it with a new blade to assure safety.
If a blade cutting edge is dull or nicked, it should be
4. sharpened. Remove the blades for sharpening. See
"Blade Replacement."
- NOTE -
Keep the blades sharp. Cutting with dull blades not
only yields a poor mowing job, but slows the cutting
speed of the mower and causes extra wear on the
engine and the blade drive by pulling hard.
B. BLADE SHARPENING
- NOTE -
If possible, use a file to sharpen the blade. Using
a wheel grinder may burn the blade.
- NOTE -
DO NOT sharpen the blades beyond 1/3 of the
width of the blade. See Figure 7-6.
Sharpen the cutting edge at the same bevel as the 1. original. See Figure 7-6. Sharpen only the top of the
cutting edge to maintain sharpness.
SGB033
Angle Blade Back
Do Not Cut In
X Must NOT Exceed
1/3 Blade Width
X
30
Blade SharpeningFigure 7-6.
Check the balance of the blade. If the blades are out
2. of balance, vibration and premature wear can occur.
See your authorized Scag dealer for blade balancing
or special tools, if you choose to balance your own
blades.
C. BLADE REPLACEMENT
WARNING
Always wear proper hand and eye protection when
working with cutter blades.
Remove the ignition key before replacing the blades.
1.
37
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Section 7
Raise the mower deck to the highest position. Place 2. the lanyard pin in the highest cutting height position
to prevent the cutter deck from falling.
Secure the cutter blades to prevent them from
3. rotating, (use the optional Blade Buddy tool, P/N
9212, to assist in securing the cutter blades), remove
the nut from the blade attaching bolt. Remove the
cutter blade, bolt and spacer from the spindle shaft.
See Figure 7-7.
- NOTE -
The front of the machine will have to be raised
slightly to remove the blade bolt from the cutter
spindle.
To install the new cutter blade, put the flat washer
4. onto the blade bolt and slide the bolt into the hole in
the cutter blade.
- NOTE -
Be sure that the blade is installed with the lift wing
pointing toward the top of the deck.
Install the spacer onto the blade bolt and insert the 5. bolt into the cutter spindle shaft.
Install the hex nut to the blade bolt at the top of the 6. cutter spindle. Secure the blades from rotating and
torque to 75 ft/lbs. See Figure 7-7.
WASHER HEX HEAD BOLT
CUTTER
BLADE
SPINDLE
ASSEMBLY
CUTTER BLADE
SPACER
HEX HEAD
BOLT / NUT
CUTTER
DECK
SPINDLE
SHAFT
HEX NUT-TORQUE
TO 75 LB-FT
Blade ReplacementFigure 7-7.
TIRES7.9
Check the tire pressures after every 8 hours of operation
or daily.
Caster Wheels Flat-Free
Drive Wheels 12 PSI
BODY AND DECK7.10
CAUTION
Do not wash any portion of the equipment while it
is hot. Do not wash the engine; use compressed
air.
After each use, wash the mower and cutter deck. 1. Use cold water and automotive cleaners. Do not use
pressure cleaners.
Do not spray electrical components.2.
Repair damaged metal surfaces using Scag touch-3. up paint (P/N 48521) available from your authorized
Scag dealer. Wax the mower with an automotive
paint wax for maximum paint protection.
38
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Section 8
SCAG APPROVED ATTACHMENTS AND ACCESSORIES.8.1
Attachments and accessories manufactured by companies other than Scag Power Equipment are not approved
for use on this machine.
Scag approved attachments and accessories:
Mulch Plate (p/n 9258, 9286, 9287)•
Hurricane Mulch (p/n 9263, 9283, 9284)•
GC-4D (p/n 9054)•
GC-F4 (p/n 9055)•
Blade Buddy (p/n 9212)•
Chrome Wheel Covers (p/n 920H) - Excludes SVR-36•
ILLUSTRATED PARTS LIST
39
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Section 8
NOTES
40
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Section 8
36A CUTTER DECK
A
A
B
B
1
2
3
4
7
10
89
6
6
4
12
32
11
7
8
9
13
14
7
8
15
16
18
20
15
18
19
17
21
21
18
18
22
26
25
24
23
27
28
29
30
34
33
32
18
18
35
16
54
53
31
36
37
38
39
39
41 40
42
43
44
45
46
47
58
57
56
55
52
5
48
50 49
51
7
60
61
59
18
62
21
66
67
66
64 65
63
41
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Section 8
36A CUTTER DECK
Ref.
No. Part No. Description Ref.
No. Part No. Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
462236
04020-09
04001-172
48926
04063-08
483284
04021-09
04043-04
424367
424615
483969
483210
48181
43077
48224
04001-62
43816
04019-04
04001-136
462233
04001-09
451724
461755
461756
04020-08
48542
48114-08
452076
483997
483361
04110-03
04107-04
04021-11
04003-42
04001-136
484020
461663
43589
481024
481022
48114-04
48677
43644
43312
43296
Cutter Deck w/Decals
Nut, 5/8-11 UNC
Bolt, Hex Head 1/4-20 x 1"
Tapered Hub, 1.125" Bore
Key, 1/4 x 1/4 x 2"
Pulley, 5.73 OD Tapered Bore
Nut, Elastic Stop 3/8-16
Flatwasher, 3/8-.391 x .938 x .105
Dust Shield
Bracket, Belt Guide
Belt, Cutter Deck
Pulley, 5" Idler
Pulley, Idler
Spacer
Bearing
Bolt, Hex Head 3/8-16 x 3-1/4"
Pivot, Idler
Nut, Serrated Flange 3/8-16
Bolt, Hex Head 5/16-18 x 1-1/2" Gr.8
Idler Arm Assy. (Incl. # 15)
Bolt, Hex Head 5/16-18 x 1"
Shaft Weldment, Pusharm Mount
Pusharm Assy., LH
Pusharm Assy., RH
Nut, 1/2-20 UNF
Rod End, 1/2-20 RH
Grease Fitting
Shaft Weldment
Guide Roller
Lever, Deck Level
U-Nut, 3/8-16
Bolt, Hex Head 3/8-16 x 2" Special
Nut, Elastic Stop 7/16-14
Bolt, Carriage 7/16-14 x 2-1/4"
Bolt, Hex Head 3/8-16 x 1-1/2" Gr.8
Spring
Spindle Assembly
Shaft, Spindle
Seal, Upper
Bearing Assembly
Grease Fitting
Valve, Grease Relief
Housing, Spindle
Spacer, Outside
Spacer, Inside
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
481025
43297
481035
483174
04021-04
04040-04
04003-12
04001-176
04030-03
04021-22
43590
482878
04043-06
04001-41
423783
04003-23
482295
451926
461356
482245
04001-154
04021-10
04001-12
Seal, Lower
Bushing, Lower
Nut, Special 1-1/16" - 18
Pad, Deck Wear
Nut, Center Lock 5/16-18
Flatwasher, 5/16-.344 x .688 x .065
Bolt, Carriage 5/16-18 x 1-3/4"
Bolt, Hex Head 5/16-18 x 1-3/4"
Lockwasher, 5/16" Spring
Nut, Elastic Stop 5/16-18
Spacer, Spindle Bottom
Cutter Blade, 18"
Flatwasher, 5/8-.688 x 1.75 x .134 HD
Bolt, Hex Head 5/8-11 x 9-1/2"
Baffle, Flange 36A
Bolt, Carriage 3/8-16 x 1"
Wheel, Anti-Scalp
Shaft Weldment
Discharge Chute Assembly
Spring, Discharge Chute
Bolt, Hex Head 5/16-18 x 4-3/4"
Nut, Elastic Stop 5/16-18
Bolt, Hex Head 5/16-18 x 1-3/4"
42
R
Section 8
48V & 52V CUTTER DECKS
A
B
B
A
1
2
3
4
5
6
8
9
10
11
11
10
82
3
4
76
6
13
12
14
69
8
10
17
17
18
19 16 15
14
20
20 22 21
21 26
23
24
25
27
28
29
30
32
31
33
34
62
62
61
16
35
14
14
29
36
37
38
39
41 40
42
43
44
39
45
46
47
57
55
54
53
52
50 49
48
51
20
60
21
59
57
58
8
66
66
67
65
15
64
63
68
43
R
Section 8
48V & 52V CUTTER DECKS
Ref.
No. Part No. Description Ref.
No. Part No. Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
462237
462238
04020-09
04001-172
48926
04063-08
483282
483284
483966
484100
04021-09
424615
04043-04
424367
483210
483215
04019-04
04001-136
04001-62
48224
462234
462235
43681
04001-09
04019-03
451724
461755
461756
04020-08
48542
452076
483997
483361
04110-03
04003-42
04107-04
04021-11
04021-22
04030-03
484020
461663
43589
481024
481022
48114-04
48677
43644
43312
43296
Cutter Deck w/Decals (48V)
Cutter Deck w/Decals (52V)
Nut, 5/8-11 UNC
Bolt, Hex Head 1/4-20 x 1"
Tapered Hub
Key, 1/4 x 1/4 x 1"
Pulley, 5.13 OD (48V)
Pulley, 5.73 OD (52V)
Belt, Cutter Deck (48V)
Belt, Cutter Deck (52V)
Nut, Elastic Stop 3/8-16
Bracket, Belt Guide
Flatwasher, 3/8-.391 x .938 x .105 HD
Dust Shield
Pulley, 5" Idler
Pulley, 5" Idler
Nut, Serrated Flange 3/8-16
Bolt, Hex Head 3/8-16 x 1-1/2" Gr.8
Bolt, Hex Head 3/8-16 x 3-1/4"
Bearing
Idler Arm Assembly - 48V (Incl. # 17)
Idler Arm Assembly - 52V (Incl. #17)
Pivot, Idler
Bolt, Hex Head 5/16-18 x 1"
Nut, Serrated Flange 5/16-18
Shaft Weldment, Pusharm Mount
Pusharm Assembly, LH
Pusharm Assembly, RH
Nut, 1/2-20 UNF
Rod End, 1/2-20 RH
Shaft Weldment
Guide Roller
Lever, Deck Level
U-Nut, 3/8-16
Bolt, Carriage 7/16-14
Bolt, Hex Head 3/8-16 x 2" Special
Nut, Elastic Stop 7/16-14
Nut, Elastic Stop 5/16-18
Lockwasher, 5/16" Spring
Spring, Cutter Deck
Spindle Assembly
Shaft, Spindle
Seal, Upper
Bearing Assembly
Grease Fitting
Valve Grease Relief
Housing, Spindle
Spacer, Outside
Spacer, Inside
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
481025
43297
481035
483176
04021-04
04040-04
04003-12
04001-176
43590
482877
482878
04043-06
04001-41
424839
424840
04003-23
482295
45944
04001-47
04041-38
461844
461845
482245
04001-154
04021-10
04001-12
481625-01
425095
425364
425094
425363
Seal, Lower
Bushing, Lower
Nut, Special 1-1/16" - 18
Pad, Deck Wear
Nut, Center Lock 5/16-18
Flatwasher, 5/16-.344 x .688 x .065
Bolt, Carriage 5/16-18 x 3/4"
Bolt, Hex Head 5/16-18 x 1-3/4"
Spacer, Spindle Bottom
Cutter Blade, 16-1/2" (48V)
Cutter Blade, 18" (52V)
Flatwasher, 5/8-.688 x 1.75 x .134 HD
Bolt, Hex Head 5/8-11 x 9-1/2"
Baffle, Flange 48V
Baffle, Flange 52V
Bolt, Carriage 3/8-16 x 1"
Wheel Anti-Scalp
Shaft Weldment
Bolt, Carriage 3/8-16 x 5"
Flatwasher, 3/8-.406 x 2.25 x .1875
Discharge Chute Assembly - 48V
Discharge Chute Assembly - 52V
Spring, Discharge Chute
Bolt, Hex Head 5/16-18 x 4-3/4"
Nut, Elastic Stop 5/16-18
Bolt, Hex Head 5/16-18 x 1-3/4"
Knob w/Stud
Belt Cover, RH (48V)
Belt Cover, RH (52V)
Belt Cover, LH (48V)
Belt Cover, LH (52V)
44
R
Section 8
CUTTER DECK CONTROLS
A
A
B
B
C
C
1
2
3
4
8
8
8
8
8
8
8
8
88
8
8
9
10 5
124
9
12
10
9
511
6
6
4
11
7
5
14
4
9
9
10
15
12
4
56
17
16
18
18
19 20 2122
14
15
24 25
26
27
28 34 36
36
37
37 33 34 38 39
40
7
21
23
9
9
8
8
8
8
12
41
32
43
35
23
29
30
31
42
44
45
46
46
46
46
57
47
448
10
49
50
51
52 53
57
55
52
58
45
R
Section 8
CUTTER DECK CONTROLS
Ref.
No. Part No. Description Ref.
No. Part No. Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
481625-01
491536
491537
452063
04021-07
43806
04001-52
04001-74
04019-04
04001-20
483361
483987
483876
48540
452057
452053
04019-06
04021-10
04001-09
04110-04
483628
483334
04041-08
04050-02
04001-54
04041-07
04021-09
43747
483453-14
452061
483600
43212
04001-31
04001-183
43748
424652
04019-06
04021-09
43554
43666
425064
04001-82
04062-04
483345
452062
483763
43805
481559
Knob w/Stud
Belt Cover w/Decals (36A)
Belt Cover w/Decals (48V & 52V)
Arm Weldment, RH
Nut, Elastic Stop 1/2-13
Spacer
Bolt, Hex Head 1/2-13 x 2-1/2"
Bolt, Hex Head 1/2-13 x 3"
Nut, Serrated Flange 3/8-16
Bolt, Hex Head 3/8-16 x 1-1/2"
Lever, Deck Level
Linkage, Deck Lift (36A)
Linkage, Deck Lift (48V & 52V)
Chain
Deck Lift Weldment (36A)
Deck Lift Weldment (48V & 52V)
Nut, Serrated Flange 1/2-13
Nut, Elastic Stop 5/16-18
Bolt, Hex Head 5/16-18 x 1"
U-Nut, 3/8-16
Bearing, Deck Lift - 36A
Bearing, Deck Lift - 48V & 52V
Flatwasher, 3/4-.766 x 1.25 x .0598
Retaining Ring, .750 "E"
Bolt, Hex Head 3/8-16 x 3"
Flatwasher, 3/8-.391 x .938 x .105
Nut, Elastic Stop 3/8-16
Actuator Rod
Bearing
Handle Weldment, Deck Latch
Spring, Deck Latch
Spacer
Bolt, Hex Head 3/8-16 x 2-1/2"
Bolt, Hex Head 1/2-13 x 1-3/4"
Bushing, Deck Latch
Deck Latch, Outer
Nut, Serrated Flange 1/2-13
Nut, Elastic Stop 3/8-16
Spacer
Spacer
Bracket, Deck Height
Bolt, Hex Head 1/2-13 x 4-1/2"
Hair Pin Cotter
Pin Assembly w/Lanyard
Arm Weldment, LH
Spring, Deck Lift
Spacer
Cap, Grease
45
46
47
48
49
50
51
52
53
54
55
56
57
58
04021-20
481657
481025
452034
04001-80
43511
9276
481770
481846
48114-03
481769
41020
04001-190
04001-82
04001-37
425099
425209
Nut, Elastic Stop 1"-14
Bearing w/Race
Seal, 2" OD x 1.625 ID
Caster Yoke Weldment
Bolt, Hex Head 1/2-13 x 6-1/2"
Sleeve, Caster Wheel
Caster Wheel Assembly, 11 x 4.0-5
Bearing, Oilite
Roller Bearing, Short
Grease Fitting, 45 Degree
Roller Bearing, Long
Weight
Bolt, Hex Head 1/2-13 x 2-3/4"
(48V & 52V - One Weight)
Bolt, Hex Head 1/2-13 x 4-1/2"
(36A - Two Weights)
Bolt, Hex Head 1/2-13 x 5-1/2"
(Three Weights Installed)
Reinforcement, Bearing - 36A (not shown)
Reinforcement, Bearing - 48V & 52V
46
R
Section 8
SHEET METAL COMPONENTS
A
A
B
BCC
1
2
3
4
56
2
6
7
8
99
10 12
13
11
14
15
15
6
16
13
13
18
15
19
13 13 18 20
21
22
23
25 26
28
29
27
26 25
24
35
40
38
30
31
32
15
35
34 33
36
37
35
15
17
41
44
35
42
39
43
45
15
46
46
47
R
Section 8
SHEET METAL COMPONENTS
Ref.
No. Part No. Description Ref.
No. Part No. Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
462240
04001-06
481625-01
491536
491537
425229
04019-02
42392
48099
48661
423308
04003-01
04029-01
04003-12
425085
04019-03
425307
04003-02
04024-03
425148
04017-05
483963
04021-09
04040-12
48807
04009-09
483453-19
462223
04009-15
425152
Instrument Panel w/Decal
Bolt, Hex Head 1/4-20 x .63
Knob w/Stud
Belt Cover w/Decals - 36A
Belt Cover w/Decals - 48V & 52V
Bracket, Oil Cooler - 48V & 52V Only
Nut, Serrated Flange 1/4-20
Battery Cover
Insulation, Battery Cover
Pad, Rubber
Battery Box
Bolt, Carriage 1/4-20 x 6"
Wing Nut, 1/4-20
Bolt, Carriage 5/16-18 x 3/4"
Bracket, Battery Support
Nut, Serrated Flange 5/16-18
Bracket, Neutral Switch
Bolt, Carriage 1/4-20 x 3/4"
Nut, Push On 5/16"
Bracket, Knee Pad
Bolt, Hex Head 1/4-20 x 3/4"
Knee Pad
Nut, Elastic Stop 3/8-16
Flatwasher, 3/8-.438 x 1" x .083
Spring
Bolt, Shoulder 1/2 x 1"
Bearing
Footplate Assembly (Incl. # 26)
Bolt, Shoulder 3/8 x 1/4"
Footplate Extension
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
04001-09
04040-04
425288
425084
04001-19
04019-04
04001-18
04030-04
484041
43814
04001-51
425036
04112-05
04017-36
462230
462231
462232
04110-04
481284
452121
Bolt, Hex Head 5/16-18 x 1
Flatwasher, 5/16-.344 x .688 x .065
Switch Bracket, Operator Presence
Bracket, Oil Filter Base
Bolt, Hex Head 3/8-16 x 1"
Nut, Serrated Flange 3/8-16
Bolt, Hex Head 3/8-16 x 3/4"
Lockwasher, 3/8"
Spring, Foot Platform
Pin, Spring Mount
Bolt, Hex Head 3/8-16 x 3-3/4"
Guard, Foot
Locknut, 1/2-13 Spiral Lock
Bolt, Serrated Flange 1/2-13 x 1"
Mainframe Assembly w/Decals (36)
Mainframe Assembly w/Decals (48)
Mainframe Assembly w/Decals (52)
U-Nut, 3/8-16
Bumper, Rubber
Handle Weldment
48
R
Section 8
STEERING CONTROLS AND FUEL COMPONENTS
A
A
B
B
1
TO FUEL
FILTER
2
46
58
7
3
9
10
11
12
12
13
18
17
19
20 23
24 16
15
14
15
9
10
11
22
11
21
25
26
29
30
27
28
34
33
31
32
10
35
24
36
32
39
34 40 43
41
42
44
37 38
37
38
38
4510
46 47
45
10
46
48
49
50
51
52
54
38
38
53
49
R
Section 8
STEERING CONTROLS AND FUEL COMPONENTS
Ref.
No. Part No. Description Ref.
No. Part No. Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
483617
48059-01
462177
483896
482571
483897
483536
483792
04040-15
04030-03
04001-08
04050-10
43820
462220
462221
483453-19
484092
04003-02
04003-06
481545
425307
04019-02
04001-10
04040-04
04021-10
484072
43749
04001-12
452054
425079
04019-03
Fuel Hose 1/4" ID (Order by Inch)
Clamp, Fuel Hose 1/4" ID
Fuel Tank Assy. (Incl. #4, 5, 6, 7)
Valve, Fuel Shut Off
Bushing, .56 Viton
Fuel Gauge Assembly
Grommet, Fuel Gauge
Cap, Fuel Tank
Flatwasher, 5/16-.375 x .875 x .083
Lockwasher, 5/16" Spring
Bolt, Hex Heaf 5/16-18 x 3/4"
Retaining Ring, .50 External
Shaft, Steering Handles
Handle Bar Assy., LH (Incl. # 15, 16)
Handle Bar Assy., RH (Incl. # 15, 16)
Bearing
Grip, Control Lever
Bolt, Carriage 1/4-20 x 3/4"
Bolt, Carriage 1/4-20 x 1"
Switch, Interlock
Bracket, Neutral Switch
Nut, Serrated Flange 1/4-20
Bolt, Hex Head 5/16-18 x 1-1/4"
Flatwasher, 5/16-.344 x .688 x .065
Nut, Elastic Stop 5/16-18
Linkage Assembly
Spacer, Pump
Bolt, Hex Head 5/16-18 x 1-3/4"
Bellcrank, Brake Weldment
Brake Keeper Plate
Nut, Serrated Flange 5/16-18
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
452055
04001-32
04040-12
04021-09
04021-05
04050-01
04001-11
04019-03
484090
43750
462241
481548
04001-45
04001-14
483504
04021-08
452117
04009-14
04009-11
04050-05
483601
452118
04020-12
484093
Brake Weldment, LH
Bolt, Hex Head 3/8-16 x 1-1/4"
Flatwasher, 3/8-.438 x 1.0 x .083
Nut, Elastic Stop 3/8-16
Nut, Center Lock 3/8-16
Retaining Ring, .625 External "E"
Bolt, Hex Head 5/16-18 x 1-1/2"
Nut, Serrated Flange 5/16-18
Linkage Assembly, Brake
Spacer
Brake Lever w/Grip
Grip, Brake Lever
Bolt, Hex Head 3/8-16 x 2"
Bolt, Hex Head 1/4-20 x 1"
Bearing
Nut, Elastic Stop 1/4-20
Lock Weldment, Neutral
Bolt, Shoulder 3/8 x .375
Bolt, Shoulder 3/8 x 1"
Flatwasher, 3/8-.406 x .812 x .065
Spring, Neutral Lever
Handle Weldment
Nut, Jam 3/8-16
Knob, Soft Touch
50
R
Section 8
HYDRAULICS AND ENGINE COMPONENTS
A
A
B
C
C
D
DE
E
F
F
G
G
H
H
J
J
K
K
L
L
1
2
35
3
3
3
33
3
5
5
5
5
5
5
5
3
3
B
6
6
510 9
14
8
13
11
12
4
4
7
7
17
18
19
20
15
16
61
63
6
61
21
21
22
22
23
24
43
45
44 46
41
40
39
38
37
35
34
32
32
33
36
42
51
52
48
50
53
54
55
48
58
57
58
59
56
56 49
48
47
29
28
30
31
26
M
M
54
21
21
60
60
64
73
67
72
66
65
69
70
71
68
74
51
R
Section 8
HYDRAULICS AND ENGINE COMPONENTS
Ref.
No. Part No. Description Ref.
No. Part No. Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
484101
484102
483968
482708
48136-13
48136-05
48811
482839
48351
462176
482571
482572
482573
48254
481507
481164
482417
482800-02
482266-01
482481
48571-02
48462-01
483951
48572-02
483807
46928
04001-19
04030-04
04040-05
04019-03
425213
425086
04003-04
04001-32
482649
483520
04063-14
482085
483802
04001-172
462166
04041-28
04030-05
04102-03
Engine, 20hp Kawasaki FX
Engine, 24hp Kawasaki FX
Engine, 26hp Kawasaki FX
Cooler, Transmission (48 & 52 Only)
Clamp, .69 Max Dia.
Clamp, .87 Max Dia.
Hose, 3/8 Pushlock (order by inch)
Heatshield, Flexible
Hose, 1/2 Pushlock (order by inch)
Hydraulic Tank Assy. (incl. # 9 through 13)
Bushing, .56 Dia, Viton
Fitting, 90 Degree - .38 Hose
Bushing, .78 Dia. Viton
Fitting, 90 Degree - .50 Hose
Insert, Filler Neck
Cap, Hydraulic Tank
Filter Head
Fitting
Elbow, 90 Degree
Tee Fitting, 3/4 O-Ring
Cap, 3/4" JIC
Oil Filter
Hose Assembly
Fitting, Union 1/2 x 5/8
Wheel Motor, Hydro-Gear
Wheel Hub Assembly
Bolt, Hex Head 3/8-16 x 1"
Lockwasher, 3/8" Spring
Flatwasher, 3/8-.406 x .812 x .065
Nut, Serrated Flange 5/16-18
Bracket, Anti-Rotation (36")
Bracket, Anti-Rotation (48" & 52")
Bolt, Carriage 5/16-18 x 1"
Bolt, Hex Head 3/8-16 x 1-1/4"
Pulley, 5.45 OD Tapered Bore
Belt, Pump Drive
Key, 5 x 5 x 25mm
Tapered Hub, 15mm Bore
Pulley, 4.75 OD - 1.125 Bore
Bolt, Hex Head 1/4-20 x 1" Gr. 8
Clutch w/Tag
Flatwasher, 7/16-.469 x 1.75 x .25
Lockwasher, 7/16" Spring
Bolt, Hex Head 7/16-20 x 2-1/4" Patch
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
04063-28
483657
483658
483659
484056
481868
484057
04028-02
422214
HG53625
04001-161
04043-04
483213
483526
04001-54
04019-04
04021-05
04021-09
04001-62
04041-12
462229
48224
43734
48485-01
482266-01
482277
483863
483862
484067
48633
484030
425368
04002-06
04030-03
04001-09
04020-03
484089
04040-04
Key, 1/4 x 1/4 x 3-1/2"
Wheel Assy., 18 x 7-8 (36)
Rim w/Valve Stem (36)
Tire, 18 x 7-8 (36)
Wheel Assy., 20 x 10.5-8 (48 & 52)
Rim w/Valve Stem (48 & 52)
Tire, 20 x 10.5-8, 4-Ply (48 & 52)
Wheel Nut
Lockwasher, Wheel Motor
Hex Castle Nut, Wheel Motor
Bolt, Hex Head 3/8-16 x 2-3/4"
Flatwasher, 3/8-.391 x .938 x .105 HD
Pulley, 4-1/2" Idler
Spring, Transmission
Bolt, Hex Head 3/8-16 x 3"
Nut, Serrated Flange 3/8-16
Nut, Center Lock 3/8-16
Nut, Elastic Stop 3/8-16
Bolt, Hex Head 3/8-16 x 3-1/4"
Flatwasher, 3/8-.375 x 1-1/2 x .059
Idler Arm Assy (incl. # 58)
Bearing
Idler Pivot, Long
Elbow, 45 Degree
Elbow, 90 Degree
Fitting, Tee
Pump, LH
Pump, RH
Exhaust Manifold, SVR (48 & 52 Only)
Clamp, Muffler (48 & 52 Only)
Muffler, Kawasaki (48 & 52 Only)
Bracket, Muffler (48 & 52 Only)
Bolt, Hex Head M8 - 1.25 X 16
Lockwasher, 5/16" Spring
Bolt, Head Head 5/16-18 x 1"
Nut, 5/16-18
Oil Drain
Flatwasher, 5/16-.344 x .688 x .065
52
R
Section 8
ELECTRICAL SYSTEM
20
20
1
2
3
SCAG
POWER EQUIPMENT
4
5
6
7
8
9
12
10
13
14
11
17
16
18
19
20
21
16
22
23 24 25
26
27 28
15 A
A
53
R
Section 8
ELECTRICAL SYSTEM
Ref.
No. Part No. Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
462240
483957
48798
48017-03
48017-04
462069
483609
483976
483975
04003-43
04021-26
483537
04001-06
04019-02
484157
482543
481637
483642
483571
48298
483629
482588
483473
462166
48126
48029-07
48029-06
04001-01
04020-02
Instrument Panel w/Decal
Switch, PTO - 10 Amp
Key Switch
Lockwasher, 5/8" Internal Tooth
Nut, 5/8-32 Special
Key Chain w/ Keys
Key w/Shroud
Choke Control, SVR
Throttle Control, SVR
Bolt, Carriage #10-24 x 1/2"
Locknut, #10-24
Hourmeter
Bolt, Hex Head 1/4-20 x .63
Nut, Serrated Flange 1/4-20
Wire Harness, SVR
Wire Harness Adapter, Kawasaki
Switch, Interlock
Double Fuse Assy. (incl. #18, 19, 20)
Cover, Sealed Double
Fuse, 20 Amp
Fuse Holder
Clip (not shown)
Switch, Double Pole - Plunger
Clutch w/Tag
Battery (not avail. through Scag)
Rubber Boot
Cable, Battery Black 18"
Cable, Battery Red 18"
Bolt, Hex Head 1/4-20 x 3/4"
Nut, 1/4-20
54
R
Section 8
HYDRAULIC PUMP ASSEMBLY
Overhaul Seal Kit
1
2
3
4
5
67
8
9
10
28
24
26
11
12
13
14
15
22
23
20
21
18
17
16
19
27
29
25
24
PORT "A"
SIDE
PORT "B"
SIDE
30
31
32 33
34
35
36
37
A
A
33
55
R
Section 8
Ref.
No. Part No. Description
1 HG 70516 Housing Kit
2 HG 70573 End Cap Kit
3 HG 50641 Straight Headless Pin
4 HG 50969 Hex Flange Bolt, M8-1.25 x 60mm
5 HG 51232 Housing O-Ring
6 HG 2513027 Charge Pump Kit
7 HG 50273 Gerotor Assembly
8 HG 9004101-1340 O-Ring
9 HG 50095 Socket Head Screw, M6 x 1.0-20mm
10 HG 2513030 Bypass Valve Kit
11 HG 70521 Pumpshaft Kit
12 HG 50315 Ball Bearing, 17 x 40 x 12
13 HG 51161 Lip Seal
14 HG 50329 Retaining Ring
15 HG 50951 Spacer
16 HG 70331 Cylinder Block Kit
17 HG 2003014 Block Spring
18 HG 2003017 Block Thrust Washer
19 HG 51444 Valve Plate
20 HG 2003087 Swash Plate
21 HG 50551 Ball Thrust Bearing
22 HG 2003005 Trunnion Arm
23 HG 2000015 Slot Guide
24 HG 2510062 Check Valve Kit (.024” Orfice) port “A” on Left Hand Pump, port “B” on Right Hand Pump
25 HG 70403 Charge Relief Kit
26 HG 2513043 Trunnion Seal with Retainer
27 HG 9005110-4400 Straight Thread Plug
28 HG 50408 Straight Headless Pin
29 HG 70525 Overhaul Seal Kit
30 HG52413 Assembly, RTN
31 HG51391 Arm, Return
32 HG51561 Spacer
33 HG44130 Washer
34 HG51400 Screw, 5/16-24 x 3/4” Patch
35 HG51394 Control Arm
36 HG52506 Nut, Center Lock 5/16-24 UNF
37 HG52401 Spring, Extension
HYDRAULIC PUMP ASSEMBLY
56
R
Section 8
REPLACEMENT DECALS AND INFORMATION PLATES
12
3
4
5
6
7
8
9
10
11
MANUFACTURED UNDER ONE OR MORE
OF THE FOLLOWING PATENTS:
4,487,006 4,885,903 4,920,733 4,967,543
4,991,382 4,998,948 5,042,239 5,117,617
5,133,176 5,826,416 5,832,708 5,865,018
6,192,666 6,766,633 6,892,519 6,996,962
7,065,946
PATENTS PENDING
Heavy-Duty
Commercial
481971
57
R
Section 8
REPLACEMENT DECALS AND INFORMATION PLATES
Ref.
No. Part No. Description
1 483402 Decal, Warning - Belt Cover
2 483405 Decal, Warning
3 483961 Decal, Belt Cover
4 483059 Decal, 36A
483199 Decal, 48V
483200 Decal, 52V
5 483407 Decal, Spinning Blades
6 48404 Decal, Metalcraft - Made in USA
7 483977 Decal, Height-of-Cut
8 483406 Decal, Warning - Knives
9 481971 Decal, Heavy Duty Commercial
10 484075 Decal, Instrument Panel
11 483044 Decal, Patents
58
RSection 8
SVR ELECTRICAL SCHEMATIC
20
20
PTO
SWITCH
KEY
SWITCH
ENGINE
HOURMETER
BRAKE
INTERLOCK
SWITCH
CLUTCH
GROUND
OPERATOR
PRESENCE
SWITCH
20 AMP FUSE
20 AMP FUSE
NEUTRAL
INTERLOCK
BLUE
RED
WHITE
GREEN
YEL W/RED STRIPE
BLUE
RED
BLACK
BLACK
BLACK
BLACK
BLUE
YEL W/RED STRIPE
GREEN
BLACK W/RED STRIPE
BLACK W/RED STRIPE
BLACK
YELLOW
GREEN
BLACK W/RED STRIPE
BLACK
WHITE
GREEN
YELLOW
GREEN
GREEN
WHITE
BLACK
GREEN
BLACK
WHITE
WHITE
RED
YELLOW
BLACK
BLUE
YELLOW
RED W/WHITE STRIPE
GREEN
YELLOW
WHITE
YEL W/RED STRIPE
YEL W/RED STRIPE
RED W/WHITE STRIPE
RED W/WHITE STRIPE
GREEN
BLACK W/RED STRIPE
WHITE
WHITE
YEL W/RED STRIPE
YEL W/RED STRIPE
BLACK
WHITE
GREEN
GREEN
YELLOW
WHITE
LIMITED WARRANTY - COMMERCIAL EQUIPMENT
Any part of the Scag commercial mower manufactured by Scag Power Equipment and found, in the reasonable judgment of Scag, to
be defective in materials or workmanship, will be repaired or replaced by an Authorized Scag Service Dealer without charge for parts
and labor during the periods specified below. This warranty is limited to the original purchaser and is not transferable. Proof of purchase
will be required by the dealer to substantiate any warranty claims. All warranty work must be performed by an Authorized Scag Service
Dealer.
This warranty is limited to the following specified periods from the date of the original retail purchase for defects in materials or
workmanship:
Wear items including drive belts, blades, hydraulic hoses and tires are warranted for ninety (90) days.•
Batteries are covered for ninety (90) days.•
Frame and structural components including oil reservoir and oil coolers are warranted for two (2) years (parts and labor) for com-•
mercial use or three (3) years / 500 hours (whichever comes first) (parts and labor) for non-commercial use.
Cutter decks are warranted against cracking for a period of three (3) years. (parts and labor 1st and 2nd year; parts only 3rd year.) •
The repair or replacement of the cutter deck will be at the option of Scag Power Equipment. We reserve the right to request compo-
nents for evaluation. This warranty does not cover any mower that has been subject to misuse, neglect, negligence, or accident, or
that has been operated in any way contrary to the operating instructions as specified in the Operator’s Manual.
Engines and electric starters are covered by the engine manufacturer’s warranty period.•
Major drive system components are warranted for two (2) years (parts and labor) for commercial use or three (3) year / 500 hour •
(whichever comes first) (parts and labor) for non-commercial use by Scag Power Equipment. (commercial and non-commercial war-
ranty excludes fittings, hoses, drive belts). The repair or replacement of the hydraulic pump or hydraulic motor will be at the option of
Scag Power Equipment. This warranty does not cover any mower that has been subject to misuse, neglect, negligence, or accident,
or that has been operated in any way contrary to the operating instructions as specified in the Operator’s Manual.
Electric clutches have a Limited Warranty for two (2) years (parts and labor) for commercial use or three (3) year / 500 hours •
(whichever comes first) (parts and labor) for non-commercial use.
Spindle assemblies have a Limited Warranty for three years (parts and labor 1st year and 2nd; parts only 3rd year).•
Any Scag product used for rental purposes is covered by a 90 day warranty. •
The Scag mower, including any defective part must be returned to an Authorized Scag Service Dealer within the warranty period. The
expense of delivering the mower to the dealer for warranty work and the expense of returning it to the owner after repair will be paid
for by the owner. Scag’s responsibility is limited to making the required repairs and no claim of breach of warranty shall be cause for
cancellation or rescission of the contract of sale of any Scag mower. “Non-Commercial” use is defined as a single property owner,
where the single property is the residence of the owner of the mower. If the mower is cutting more than the owners single property, it is
deemed commercial use and the “non-commercial” warranty does not apply. Scag Power Equipment reserves the right to deny and / or
void the non-commercial warranty if it believes it to be in commercial use.
This warranty does not cover any mower that has been subject to misuse, neglect, negligence, or accident, or that has been
operated in any way contrary to the operating instructions as specified in the Operator’s Manual. The warranty does not apply
to any damage to the mower that is the result of improper maintenance, or to any mower or parts that have not been assembled or
installed as specified in the Operator’s Manual and Assembly Manual. The warranty does not cover any mower that has been altered or
modified, changing performance or durability. In addition, the warranty does not extend to repairs made necessary by normal wear, or
by the use of parts or accessories which, in the reasonable judgment of Scag, are either incompatible with the Scag mower or adversely
affect its operation, performance or durability.
Scag Power Equipment reserves the right to change or improve the design of any mower without assuming any obligation to
modify any mower previously manufactured. All other implied warranties are limited in duration to the two (2) year for commercial
use, three (3) years for non-commercial use or ninety (90) days for mowers used for rental purpose. Accordingly, any such implied
warranties including merchantability, fitness for a particular purpose, or otherwise, are disclaimed in their entirety after the expiration
of the appropriate two year or ninety day warranty period. Scag’s obligation under this warranty is strictly and exclusively limited to the
repair or replacement of defective parts and Scag does not assume or authorize anyone to assume for them any other obligation. Some
states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
Scag assumes no responsibility for incidental, consequential or other damages including, but not limited to, expense for gasoline,
expense of delivering the mower to an Authorized Scag Service Dealer and expense of returning it to the owner, mechanic’s travel time,
telephone or telegram charges, rental of a like product during the time warranty repairs are being performed, travel, loss or damage to
personal property, loss of revenue, loss of use of the mower, loss of time or inconvenience. Some states do not allow the exclusion or
limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you
specific legal rights, and you may also have other rights which vary from state to state.