Scag STT User Manual

MODEL STT

OPERATOR’S MANUAL

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

PART NUMBER 03059

WARNING:

FAILURE TO FOLLOW SAFE OPERATING PRACTICES

MAY RESULT IN SERIOUS INJURY.

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

REMEMBER - YOUR MOWER IS ONLY AS SAFE AS THE OPERA TOR!

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:

STT52-22CH with a serial number of 4260001- 4269999 STT52B-22CH with a serial number of 4280001- 4289999 STT61-22CH with a serial number of 4270001- 4279999 STT61B-22CH with a serial number of 4290001- 4299999 STT52-25CH with a serial number of 4300001- 4309999 STT61-25CH with a serial number of 4310001- 4319999 STT52B-25CH with a serial number of 4320001- 4329999 STT61B-25CH with a serial number of 4330001- 4339999 STT52-22KA with a serial number of 4340001- 4349999 STT61-22KA with a serial number of 4350001- 4359999 STT52B-22KA with a serial number of 4360001- 4369999 STT61B-22KA with a serial number of 4370001- 4379999

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

Section 1

GENERAL INFORMATION

1.1 INTRODUCTION

Your mower was built to the highest standards in the industry. However, the prolonged life and maximum efficiency of your mower depends on you following the operating, maintenance and adjustment instructions in this manual.

If additional information or service is needed, contact your Scag Power Equipment Dealer.

We encourage you to contact your dealer for repairs. All Scag dealers are informed of the latest methods to service this equipment and provide prompt and efficient service in the field or at their service shop. They carry a full line of Scag service parts.

USE OF OTHER THAN ORIGINAL SCAG REPLACEMENT PARTS WILL VOID THE WARRANTY.

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.

1.2 DIRECTION REFERENCE

The Right and Left, Front and Rear of the machine are referenced from the operators right and left when seated in the normal operating position and facing the forward travel direction.

1.3 SERVICING THE ENGINE AND DRIVE TRAIN COMPONENTS

When ordering parts, always give the model and serial number of your tractor. The serial number plate is located where shown in Figures 1-1.

SERIAL NUMBER PLATE LOCATION

4,991,382

4,998,948

4,118,617

4,487,006

4,885,903

OF THE FOLLOWING PATENTS:

4,920,733

MANUFACTURED UNDER ONE OR MORE

4,967,543

Figure 1-1 Tractor Serial Number Plate Location

PATENTS PENDING

MODEL

SERIAL

Mayville, Wisconsin 53050

Division of Metalcraft of Mayville, Inc.

Patents Issued and Pending

390S0137

The detail servicing and repair of the engine, hydraulic pumps and gearboxes 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.

SAFETY INFORMATION

2.1 INTRODUCTION

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.

READ THIS OPERATORS MANUAL BEFORE ATTEMPTING TO START YOUR MOWER.

Section 2

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.

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. Please indicate the complete model and serial number of your Scag product when requesting replacement manuals.

2.2 SIGNAL WORDS

This symbol means Attention! Become Alert! Your Safety is Involved!" The symbol is used with the

following signal words to attract your attention to safety messages found on the decals on the machine and throughout this manual. The message that follows the symbol contains important information about safety. To avoid injury and possible death, carefully read the message! Be sure to fully understand the causes of possible injury or death.

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.

2.3 BEFORE OPERA TION CONSIDERATIONS

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

2. DO NOT mow when children and/or others are present.

3. Clear the area to be mowed of objects that could be picked up and thrown by the cutter blades.

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.

4. DO NOT carry passengers.

Section 2

2.3 BEFORE OPERA TION CONSIDERATIONS (CONT'D)

5. DO NOT wear loose fitting clothing that could get tangled in moving parts. Do not operate the machine wearing shorts; always wear adequate protective clothing including long pants. Wearing safety glasses, safety shoes and a helmet is advisable and is required by some local ordinances and insurance regulations.

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

7. Keep the machine and attachments in good operating condition. Keep all shields and safety devices in place. If a shield, safety device or decal is defective or damaged, repair or replace it before operating the machine.

10. DO NOT add fuel to a running or hot engine. Allow the engine to cool for several minutes before adding fuel.

11. Keep flammable objects (cigarettes, matches, etc.), open flames and sparks away from the fuel tank and fuel container.

12. Equipment must comply with the latest requirements per SAE J137 and/or ANSI/ASAE S279 when driven on public roads.

-NOTE-

If the mower is driven on public roads, it must comply with state and local ordinances as well as SAE J137 and/or ANSI / ASAE S279 requirements. Contact your local authorities for regulations and equipment requirements.

13. DO NOT operate without the side discharge chute installed and in the down position.

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 parking brake is on, the steering control levers are in the neutral position and the operator is in the seat. The system shuts off the engine if the operator leaves the seat with the deck drive engaged and/or the steering control levers are not in the neutral postion and the parking brake is not engaged. Never operate equipment with the interlock system disconnected or malfunctioning.

8. Be sure the interlock switches are functioning correctly.

9. Fuel is flammable; handle it with care. Fill the fuel tank outdoors. Never fill it indoors. Use a funnel or spout to prevent spillage. Clean up any spillage before starting the engine.

14. Check the blade mounting bolts at frequent intervals for proper tightness.

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

2.4 OPERATION CONSIDERA TIONS

1. Know the function of all controls and how to stop quickly.

2. Reduce speed and exercise extreme caution on slopes and in sharp turns to prevent tipping or loss of control. Be especially cautious when changing directions on slopes.

WARNING:

DO NOT operate on steep slopes. To check a slope, attempt to back up it (with the cutter deck down). If the machine can back up the slope without the wheels slipping, reduce speed and use extreme caution. ALWAYS FOLLOW OSHA APPROVED OPERATION.

Section 2

2.4 OPERATION CONSIDERA TIONS (CONT'D)

3. To prevent tipping or loss of control, do not start or stop suddenly, avoid unnecessary turns and travel at reduced speed.

4. When using any attachment, never direct the discharge of material toward bystanders or allow anyone near the machine while in operation.

5. Before attempting to start the engine, with the operator in the seat, disengage power to the cutter deck, place the steering control levers in the neutral position and engage the parking brake.

6. If the mower discharge ever plugs, shut off the engine, remove the ignition key, and wait for all movement to stop before removing the obstruction. Do not use your hand to dislodge the clogged discharge chute. Use a stick or other device to remove clogged material.

13. Disengage power to the attachments when transporting or when not in use.

14. The machine and attachments should be stopped and inspected for damage after striking a foreign object, and damage should be repaired before restarting and operating the machine.

15. 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.

16. DO NOT run the engine inside a building or a confined area without proper ventilation. Exhaust fumes are hazardous and could cause death.

2.5 MAINTENANCE CONSIDERATIONS

1. Never make adjustments to the machine with the engine running unless specifically instructed to do so. If the engine is running, keep hands, feet, and clothing away from moving parts.

7. Be alert for holes, rocks, roots and other hidden hazards in the terrain. Keep away from any dropoff. Beware of overhead obstructions (low limbs, etc.), underground obstacles (sprinklers, pipes, tree roots, etc.). Cautiously enter a new area. Be alert for hidden hazards.

8. Disengage power to cutter deck before backing up. Do not mow in reverse unless absolutely necessary and then only after observation of the entire area behind the mower.

9. DO NOT turn sharply. Use care when backing up.

10. Disengage power to cutter deck before crossing roads, walks or gravel drives.

11. Mow only in daylight or good artificial light.

12. Take all possible precautions when leaving the machine unattended, such as disengaging the mower, lowering the attachments, setting the parking brake, stopping the engine, and removing the key.

2. Remove the key from the ignition switch to prevent accidental starting of the engine when servicing or adjusting the machine.

3. Keep all nuts, bolts and screws tight, to ensure the machine is in safe working condition. Check blade mounting bolts frequently to be sure they are tight.

4. Do not change the engine governor settings or overspeed the engine. See the engine operator's manual for information on engine settings.

5. To reduce fire hazard, keep the engine free of grass, leaves, excessive grease, oil and dirt.

6. Hydraulic fluid is under high pressure. Keep body and hands away from pinholes or nozzles that eject hydraulic fluid under high pressure. If you need service on your hydraulic system, please see your authorized Scag dealer.

7. Hydraulic fluid under high pressure may have sufficient force to penetrate skin and cause serious injury. If hydraulic fluid is injected into the skin, it must be surgically removed within a few hours by a

doctor or gangrene may result.

Section 2

2.6 SAFETY AND INSTRUCTIONAL DECALS

DANGER

SPINNING BLADE

KEEP CLEAR

CONTACT CAN INJURE

48071

WARNING

ROTATING BLADES AND BELTS

KEEP HANDS, FEET & CLOTHING CLEAR KEEP ALL GUARDS IN PLACE SHUT OFF ENGINE & DISENGAGE BLADE CLUTCH BEFORE SERVICING CLEAR AREA OF DEBRIS BEFORE MOWING USE CAUTION IN DIRECTING DISCHARGE KEEP BYSTANDERS, CHILDREN & PETS AWAY READ INSTRUCTION MANUAL BEFORE OPERATING

DO NOT OPERATE WITHOUT DISCHARGE CHUTE, MULCHING

KIT, OR ENTIRE GRASS CATCHER INSTALLED

START / DRIVE

PROCEDURE

ENGAGE PARKING BRAKE DISENGAGE MOWER DECK DRIVE MOVE CONTROL HANDLES TO NEUTRAL LOCK POSITION START ENGINE RELEASE PARKING BRAKE SELECT FORWARD OR REVERSE SPEED WITH HYDRO CONTROL HANDLES

CAUTION

481040

WARNING

INSTALL BELT COVER BEFORE

OPERATING MACHINE

READ OPERATOR'S MANUAL

FORWARD

REVERSE

CAUTION

AVOID INJURY FROM BURNS. SHUT OFF ENGINE BEFORE REMOVING FUEL TANK CAP.

481272

481568

IMPORTANT ADJUSTMENT

PROCEDURES

READ OPERATOR'S MANUAL

FOR MORE DETAILS

Check tire pressure-

(Drive tires - 12 psi,

Caster tires - 25 psi)

NEUTRAL ADJUSTMENT

Loosen jam nuts

Rotate turnbuckle

With an operator in the seat,

engine running, control levers

in neutral and the parking brake

disengaged - adjust control

linkage. Loosen jam nuts. If wheel

rotates forward, adjust turnbuckle

CCW. If wheel rotates rearward, adjust turnbuckle CW. Adjust until drive wheel stops turning. Tighten

jam nuts. Repeat for opposite side.

TRACKING ADJUSTMENT

If the machine pulls to the right,

adjust LH control linkage CCW to

slow left wheel. If the machine pulls to the left, adjust RH control linkage CCW to slow right wheel.

Readjust neutral if necessary.

Gearbox lubricant:

SAE 80W90 gear oil

481039

KEEP BYSTANDERS AWAY

CAUTION

BEFORE OPERATING

READ OPERATOR'S

MANUAL AND SAFETY

INSTRUCTIONS

481567

FREE WHEEL OPERATION

To move machine without running

the engine, rotate both dump valve

levers located at the LH side of

the pumps CCW 1/2 turn to

"freewheel" positions. Return

levers to original position to

operate the mower.

HYDRAULIC TANK FLUID LEVEL

Check hydraulic fluid level

daily while fluid is cool.

Fluid level should be 3-1/4"

below top of filler neck.

Fill with SAE 20W50 motor oil only.

IMPORTANT!:

Do not overfill. Room for hot

fluid expansion must be allowed

or resulting expansion may cause

leaks in the system.

481588

390S0150

Section 3

3.1 ENGINE

SPECIFICATIONS

General Type ............................................................................. Heavy Duty Industrial/Commercial Gasoline

Brand ......................................................................................... Kohler, 22HP (Spec. #PS-76510) 25HP (Spec. #PS-68579)

Kawasaki, 22HP (Spec. # FD661D-AS0201)

Model ......................................................................................... Kohler Command, Kawasaki FD661D

Horsepower ................................................................................ 22 HP at 3600 RPM (Model STT52&52b-22CH, STT61&61B-22CH)

25 HP at 3600 RPM (Model STT52&52B-25CH, STT61&61B-25CH)

22 HP at 3600 RPM (Model STT52&52B-22KA, STT61&61B-22KA)

Type ........................................................................................... 4 Cycle Gasoline, Twin Cylinder, Horizontal Shaft

Displacement ............................................................................ 22HP Kohler 674 cc., 25HP Kohler 725cc., 22HP Kawasaki 617cc

Cylinders ................................................................................... 2 with Cast Iron Sleeves

Governor .................................................................................... Mechanical Type with Variable Speed Control Set At 3600 RPM

Idle Speed .................................................................................. 1400 RPM

Kohler Fuel Pump Group .......................................................... Mechanical Type Fuel Pump with In-Line Fuel Filter, Fixed Jet

Carburetor with Smart-Choke and Fuel Shutdown Solenoid

Kawasaki Fuel Pump Group ..................................................... Electric Fuel Pump with In-Line Fuel Filter,Fixed Jet Downdraft

Carburetor.

Fuel ............................................................................................ Non-Leaded Gasoline with a Minimum Octane Rating of 87

Oil Pump Group ........................................................................ Positive Displacement Gerotor Oil Pump with Remote Oil

Filter

Starter ........................................................................................ Electric Starting with Solenoid Shift Starter

Belts: .......................................................................................... Kevlar cord. Self-adjusting, Self-tightening

Deck Drive Belt ..................................................................... Scag Part Number - 481460

Pump Drive Belt .................................................................... Scag Part Number - 481461

Kawasaki Fan Belt .................................................................. Part Number - Mitsubishi 59011-2056 (N/A Through Scag)

3.2 ELECTRICAL

Battery ....................................................................................... 12 Volt

Charging System ....................................................................... Alternator

Charging Output ....................................................................... 12 Volt, 15 Amp

System Polarity .......................................................................... Negative Ground

Starter ........................................................................................ 12 Volt Electric Ring Gear Type, Key and Solenoid Operated

Interlock Switches ..................................................................... Seat, Neutral Control, Mower Engagement (BBC), Parking Brake

Instrument Panel ....................................................................... Ammeter, Hourmeter, Key Switch, Throttle Lever, Manual Choke,

BBC Switch, Fuses and Safety Start module, Temp. gauge (KA)

Fuses .......................................................................................... Two (2) 20 Amp

3.3 TRACTOR

Drive System ............................................................................. Hydraulic Drive with Two Variable Displacement Pumps and Two

Cast-iron High Torque Motors

Hydrostatic Pumps ..................................................................... Two Hydro-Gear BDP 10L Pumps with Dump Valves for

movement without running the engine

Drive Wheel Motors .................................................................. Two Ross Model MB 15 cu. inch Cast-iron High Torque Motors

Steering/Travel Control ............................................................. Twin Lever Fingertip Steering Control with Individual Control to

Each Wheel with Gas Spring Dampers

Parking Brake ............................................................................ Lever Actuated Linkage to Brakes on Both Drive Wheel Axles

Wheels:

(2) Front Caster .................................................................... 13 X 5.00 Four-Ply

(2) Drive ................................................................................. 23 X 10.5 X 12 Four-Ply Pneumatic Tubeless, Radius Edge, 52"

................................................................................................... 24X12.0X12.0 Four-Ply Pneumatic Tubeless, Radius Edge, 61"

Fuel Tank ................................................................................... 10-Gallon Seamless Polyethylene Tank with Fuel Gauge Fill Cap

Tire Pressure:

Front Caster .......................................................................... 25 PSI

Drive ..................................................................................... 12 PSI

Seat ............................................................................................ Padded, Thick Cushion with Extra Spring Support

Section 3

3.3 TRACTOR (CONT'D)

Travel Speed:

Forward ................................................................................ 0-10 MPH

Reverse ................................................................................. 0-5 MPH

3.4 CUTTER DECK

Type: .......................................................................................... Floating, Adjustable, Anti-scalping, Hybrid Design Combines

Out-front and Belly-mount Designs

Construction: ............................................................................. 10-gauge steel reinforced with 7-gauge (3/16") Support Plate.

7-gauge (3/16") deck skirt with 3/8" front plate.

True Cutting Width: .................................................................. 52" (132.0 cm), 61: (155.0 cm)

Cutting Height Adjustment: ...................................................... Foot Operated Lever Adjustment from Operator's Seat, 1.00" to

6.00" in 1/2"increments

Cutter Blades: ............................................................................ .204 Thick, Milled Edge, 5150 Alloy Steel

SMT 52: Three (3) 18" blades SMT 61: Three (3) 21" blades

Blade Engagement: .................................................................. Electric Blade Engagement Clutch with Control Panel Switch

Connected to the Cutter Deck Gearbox through a Drive Shaft.

Discharge Opening: .................................................................. Extra Wide 11.5" Discharge Opening with Spring Loaded

Discharge Chute

Caster Wheels:........................................................................... 13x 5.00 Four-Ply

Spindles: .................................................................................... Heavy-duty 1-1/8" Top Dimension Spindle Shaft, Cast Housing,

Taper Roller Bearing, Low Maintenance with Top Access Grease

Fitting and Grease Overfill Relief Poppet

Spindle Pulleys: ......................................................................... Cast-iron with Easily Removed Taper Hubs

Cutter Deck Belts: ..................................................................... B-section with Kevlar Cord. Self-adjusting, Self-tightening

SMT52 ................................................................................. Scag Part Number - 481557

SMT61 ................................................................................. Scag Part Number - 481558

Electric Clutch Type .................................................................. Warner Mag Stop Electric Clutch

Drive Shaft ................................................................................ Quick-disconnect Shaft With Two High Speed U-Joints

-NOTE-

The machine will travel at 10mph for transport purposes. For best cutting performance the forward travel speed should be adjusted depending upon the cutting conditions.

3.6 HYDRAULIC SYSTEM

Hydraulic Oil Filter ................................................................... 10 Micron Spin-on Element Type

Hydraulic Reservoir................................................................... Nylon; 6 Quart Capacity

3.7 WEIGHTS AND DIMENSIONS 52" MODEL 61" MODEL

Length ........................................................................................ 76" 79"

Tracking Width ......................................................................... 51" 51"

Overall Width ............................................................................ 62" 72"

Overall Height ........................................................................... 30" 30"

Operating Weight ...................................................................... 1160# 1200#

3.8 PRODUCTIVITY

The following 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 4 MPH with an allowance for overlap and turns.

Cutting Width: 36" 48" 52" 61" 72"

Acres Per Day: 9.5 12.5 13.5 16 19

Section 4

OPERATING INSTRUCTIONS

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.

4.1 CONTROLS AND INSTRUMENT 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.

Section 4

1. Ignition Switch (Figure 4-1). The ignition switch is used to start the engine and has three positions; OFF, ON, and START.

2. Mower Deck Switch (Figure 4-1). 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.

3. Engine Choke Control (Figure 4-1). Used to start a cold engine.

4. Engine Throttle Control (Figure 4-1). 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.

AMMETER

MOWER DECK SWITCH

IGNITION SWITCH

HOURMETER

LEFT STEERING

PARKING BRAKE

MOWER DECK

PULL OUT TO ENGAGE

START

OFF

CONTROL

ENGINE THROTTLE

CONTROL

PUSH IN TO DISENGAGE

ENGINE

CHOKE

CONTROL

481239

481640

FUSES

DECK LIFT

RIGHT STEERING

CONTROL

CUTTING HEIGHT

ADJUSTMENT

DECK RELEASE

AMMETER

MOWER DECK SWITCH

irjf;o3rf

aljalefja

sorgf

aljalefja

afkrjf ;w

CHOKE

OFF

481348

TEMPERATURE GAUGE

IGNITION SWITCH

HOURMETER

KAWASAKI MACHINE ONLY

OFF

MOWER DECK

PULL OUT TO ENGAGE

PUSH IN TO DISENGAGE

START

481669

FUEL GAUGE

DUMP VALVEDUMP VALVE

390S0142

Figure 4-1 Controls and Instruments

Section 4

5. Ammeter (Figure 4-1). Indicates the condition of the charging system. When the engine is running the needle should be toward the positive end of the meter. If the needle is toward the negative end of the meter, this indicates a discharge condition and the machine should be taken in for service.

6. Hourmeter (Figure 4-1). Indicates the number of hours the engine has been operated. It operates whenever the ignition key switch is in the ON position. It can be used to keep track of maintenance intervals and the amount of time required to perform various tasks.

7. Fuse Holders (Figure 4-1). Two 20-amp fuses protect the mowers electrical system. To replace fuses, pull fuse out of the socket and install a new fuse.

8. Left Steering Control (Figure 4-1). Used to control the mower's left wheel when traveling forward or reverse.

9. Right Steering Control (Figure 4-1). Used to control the mower's right wheel when traveling forward or reverse.

10. Parking Brake Control (Figure 4-1). 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.

DUMP VALVE

CONTROL LEVER

390S0141

Figure 4-2 Dump Valve Control

15. Deck Release Lever (Figure 4-1). Used to lock the cutter deck in the transport position. Push the foot pedal forward and lift up on the release lever to release the cutter deck for normal mowing.

16. Temperature Gauge (Figure 4-1). Indicates the operating temperature of the engine. Used on the

Kawasaki liquid cooled engine only.

4.2 SAFETY INTERLOCK SYSTEM

The mower is equipped with a safety interlock system that prevents the engine from starting unless the deck drive is disengaged, the parking brake is engaged, the steering control levers are in the neutral position and the operator is in the seat. The interlock system shuts off the engine if the operator leaves the seat with the steeering control levers not in the neutral position and/or the cutter blades engaged and the parking brake not engaged.

11. Fuel Tank Gauge (Figure 4-1). Indicates the amount of fuel in the fuel tank.

12. Dump Valve Control Levers (Figure 4-2). Located on the hydraulic pumps, used to free-wheel the mower. Rotating the levers clockwise until they stop allows the unit to move under hydraulic power. The levers must be in this position during operation of the mower. Rotating the levers counter-clockwise allows the mower to be moved by hand (free-wheeling).

13. Deck Lift Foot Lever (Figure 4-1). Used to raise and lower the cutter deck.

14. Cutting Height Adjustment (Figure 4-1). Used to set the cutter deck at the desired cutting height.

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.

4.3 INITIAL RUN-IN PROCEDURES (First Day of Use or Approximately 10 Hours)

1. Check all belts for proper alignment and wear at 2, 4 and 8 hours.

Section 4

2. Change the engine oil and oil filter after the first 5 hours of operation. (See Section 7.4.)

3. Check hydraulic oil level in reservoir. (See Section

7.3.)

4. Check for loose hardware. Tighten as needed.

5. Check interlock system for proper operation. (See Section 4.2.)

6. Check tire pressure. Adjust pressure if necessary. (See Section 7.10)

4.4 ST ARTING THE ENGINE

CAUTION:

DO NOT USE STARTING FLUIDS. Use of starting fluids 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.

4.5 GROUND TRAVEL AND STEERING

-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

1. Be sure the fuel shutoff valve, located behind the operator's seat, is completely open. (See section 7.5.)

2. Sit in the operators seat and place the steering control levers in the neutral position.

3. Engage the parking brake.

4. If the engine is cold, choke the engine as needed.

5. Move the engine throttle control to about half engine speed.

6. Turn the ignition key to the START position and release the key as soon as the engine starts. Do not hold the key in the START position for more than 15 seconds at a time. Allow at least 60 seconds between each cranking attempt to prevent overheating of the starter motor. Prolonged cranking can damage the starter motor and shorten battery life.

To travel forward with the mower, disengage the parking brake 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 further forward and to decrease the speed, pull the steering control levers back.

To stop the forward travel, pull the steering control levers back to the neutral position.

To steer the mower left while traveling forward, pull the left steering lever back. The further the lever is pulled back, the quicker the mower will turn left.

To steer the mower right while traveling forward, pull the right steering control lever back. The further the lever is pulled back, the quicker the mower will turn right.

7. Allow engine to warm before operating the mower.

Section 4

STT99CES

PULL UP TO ENGAGE

PUSH DOWN TO DISENGAGE

-NOTE-

Smooth operation of the steering levers will produce smooth mower operation. While learning the operation of the steering controls, keep the travel speed low.

-IMPORTANT-

Do not travel forward over a curb. The mower will hang up on the curb. Raise the deck and travel backwards over the curb at a 45 degree angle. (see section 4.13 for cutter deck raising instructions)

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.

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.

4.6 ENGAGING THE DECK DRIVE (CUTTER BLADES)

1. Set the throttle at about 3/4 speed. Do not attempt to engage the deck drive at high speed as this shortens the electric clutch life  use only moderate engine speed when engaging the deck drive.

2. Engage the deck drive by pulling out on the yellow switch, located on the instrument panel, (Figure 4-3) to the engage position.

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 handles back. Keep the travel speed low while traveling in reverse.

-NOTE-

The mower will not travel straight in reverse. Slight adjustments must 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.

Figure 4-3 Cutter Engage Switch

-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.

3. To disengage the deck drive, push the switch in to the disengage position.

4. Always operate the engine at full throttle to properly maintain cutting speed. If the engine starts to lug down, reduce the forward speed and allow the engine to operate at maximum RPM.

Section 4

4.7 HILLSIDE OPERATION

WARNING:

DO NOT operate on steep slopes. T o check a slope, attempt to back up it (with the cutter deck down). If the machine can back up the slope without the wheels slipping, reduce speed and use extreme caution. ALWAYS FOLLOW OSHA APPROVED OPERATION.

1. The 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.

2. To prevent tipping or loss of control, do not start or stop suddenly, avoid unnecessary turns and travel at reduced speed.

-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.

2. Keep the entire mower clean to inhibit serious heat damage to the engine or hydraulic oil circuit.

3. Check the drive belts for proper alignment and any signs of wear. Correct and adjust if necessary.

To avoid injury from burns, allow the mower to cool before removing the fuel tank cap and refueling.

4. After the mower has cooled down, fill the fuel tank with fresh, clean fuel at the end of every day of operation.

3. Keep tires properly inflated.

4.8 P ARKING THE MOWER

1. Place the steering control levers in the neutral position.

2. Disengage the cutter blades

3. Slow the engine to idle speed.

4. Engage the parking brake.

5. Turn the ignition key to the OFF position and remove the key.

4.9 AFTER OPERATION

1. Wash the entire mower after each use. Do not use high pressure spray or direct the spray onto electrical components.

5. Check the tire pressure. Adjust pressure if necessary.

Section 4

4.10 REMOVING CLOGGED MATERIAL

ROT A TING 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.

1. If the discharge chute becomes clogged, shut off the

engine and remove the ignition key. Using a stick or similar item, dislodge the clogged material. Then resume normal mowing.

4.1 1 MOVING MOWER WITH ENGINE STOPPED

To free-wheel or move the mower around without the engine running, place the dump valve levers in the FREEWHEEL position (Figure 4-2). Disengage the parking brake and move the mower by hand. The dump valve levers must be returned to the DRIVE position to drive the mower.

5. When mowing wet or tall grass, mow the grass twice. Raise the mower to the highest setting for the first pass and then make a second pass to the desired height.

6. Use a slow travel speed for trimming purposes.

7. Operate the engine at full throttle for best cutting. Mowing with a lower RPM causes the mower to tear the grass. The engine is designed to be operated at full speed.

8. Use the alternate stripe pattern for best lawn appearance. Vary the direction of the stripe each time the grass is mowed to avoid wear patterns in the grass.

4.12 RECOMMENDATIONS FOR MOWING

1. Do not mow with dull blades. A dull blade will tear grass, resulting in poor lawn appearance and require extra power.

2. The discharge chute must not be removed and 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.

3. Cut grass when it is dry and not too tall. Do not cut grass too short (cut off 1/3 or less of existing grass for best appearance). Mow frequently.

4. Keep mower and discharge chute clean.

Section 4

4.13 ADJUSTING CUTTING HEIGHT

The mower deck can be adjusted from a height of 1-inch to 6 inches at 1/2-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 and then adjust cutting height.

1. Disengage the power to the cutter blades.

2. Push the cutting height adjustment foot pedal all the way forward using your right foot until it locks in place. (Figure 4-6).

LANYARD PIN

3.5

4.5

5.5

HEIGHT

CUTTING

HEIGHT ADJUSTMENT PEDAL

Figure 4-6 Adjusting Cutting Height

481543

1.5

2.5

390S0140

3. Insert the lanyard pin into the cutting height index at the desired cutting height. Push forward on the deck lift foot lever, hold in place and lift up on the deck release lever, (Figure 4-7). Slowly release the foot pedal. A deck height decal is located on the cutting height index as an aid in adjusting the deck to the desired height. (Figure 4-6).

DECK RELEASE LEVER

390S0151

Figure 4-7 Deck Release Lever

Section 5

TROUBLESHOOTING CUTTING CONDITIONS

CONDITION

CAUSE

CURE

Stringers - Occasional Low engine RPM Run engine at full RPM Blades of Uncut Grass Ground speed too fast Slow speed to adjust for conditions

Wet grass Cut grass after it has dried out

Dull blades, incorrect sharpening Sharpen blades

Deck plugged, grass accumulation Clean underside of deck

Width of Deck

SGB020

Belts slipping Adjust belt tension

Streaking - Strips of Dull, worn blades Sharpen blades Uncut Grass in Cutting Path Incorrect blade sharpening Sharpen blades

Low engine RPM Run engine at full 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

Width of Deck

SGB018

Bent blades Replace blades

Streaking - Strips of Not enough overlapping Increase the overlap of each Uncut Grass Between between rows pass Cutting Paths

Width

Deck

SGB019

Width

Deck

TROUBLESHOOTING (CONT'D)

Section 5

CONDITION

CAUSE

CURE

Uneven Cut on Flat Lift worn from blade Replace blade Ground - Wavy High-Low Blade upside down Mount with cutting edge toward Appearance, ground Scalloped Cut, or Rough Contour Deck plugged, grass accumulation Clean underside of deck

Too much blade angle (deck pitch) Adjust pitch and level

Deck mounted improperly See your authorized SCAG dealer

Bent spindle area See your authorized SCAG dealer

Dull blade Sharpen blade

Width of Deck

SGB020

Uneven Cut on Uneven ground May need to reduce ground speed, Uneven Ground - raise cutting height, and/or change Wavy Appearance, direction of cut High-Low Scalloped Cut, or Rough Contour

Width of Deck

SGB021

Sloping Ridge Across Tire pressures not equal Check and adjust tire pressure Width of Cutting Path

Wheels uneven Check and adjust tire pressure

Deck mounted incorrectly See your authorized SCAG dealer

Deck not level side-to side Check for level and correct

Width of Deck

SGB023

Section 5 TROUBLESHOOTING (CONT'D)

CONDITION

CAUSE

CURE

Scalping - Blades Low tire pressures Check and adjust pressures Hitting Dirt or Cutting Very Close to Ground speed too fast Slow speed to adjust for conditions

the Ground

Cutting too low May need to reduce ground speed,

raise cutting height, change direction of cut, and/or change pitch and level

Rough terrain May need to reduce ground speed,

raise cutting height, and/or change direction of cut

Ground speed too fast Slow speed to adjust for conditions

Width of Deck

SGB022

Step Cut -Ridge Blades not mounted evenly Adjust pitch and level in Center of Cutting path Bent blade Replace blade

Wet grass Cut grass after it has dried out

Internal spindle failure See your authorized SCAG dealer

Mounting of spindle incorrect See your authorized SCAG dealer

Width of Deck

SGB024

Slope Cut - Sloping Bent spindle mounting area See your authorized SCAG dealer Ridges Across Width of Cutting Path Internal spindle failure See your authorized SCAG dealer

Bent deck housing See your authorized SCAG dealer

Width of Deck

SGB025

Section 6

ADJUSTMENTS

6.1 P ARKING BRAKE ADJUSTMENT

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 not prevent the mower from moving. If the following procedures do not allow you to engage the parking brake properly, contact your Scag dealer for further brake adjustments.

1. Position a floor jack under the rear of the machine. Raise the machine and support it to prevent it from falling. Block the caster wheels to prevent the machine from moving. Remove the drive wheels.

7. Repeat steps 4-6 on the RH side of the machine.

8. Replace the drive wheels and test the brake.

-NOTE-

If this proceedure does not achieve proper brake adjustment, please contact your authorized Scag dealer.

LOOSEN

HERE

LOOSEN

HERE

2" TO 2 1/4"

390S0152

2. With the brake lever in the disengaged position, check the distance between the top of the frame tube and the bottom of the brake handle. The distance should be 2" to 2-1/4" (See Figure 6-1).

3. If the distance is not at the specified measurement, adjust by loosening the jam nuts at both ends of the brake control rod and turning the rod until the proper distance is achieved. (See Figure 6-1). Tighten the jam nuts.

4. With the brake in the engaged position, check the distance between the lower nut on the brake actuator rod and the brake actuator lever on the LH side of the machine. The distance should be 1/8" (See Figure 6-

2).

5. If the distance is not at the specified measurement, loosen the jam nut at the clevis on the top of the brake actuator rod (See Figure 6-2).

Figure 6-1. Brake Adjustment

LOOSEN

HERE

1/8"

390S0153

Figure 6-2. Brake Rod Adjustment

6.2 TRA VEL ADJUSTMENTS

Neutral or tracking adjustments will need to be made if:

6. Turn the bolt at the bottom of the brake actuator lever until the 1/8" measurement is achieved and tighten the jam nut at the clevis on the brake actuator rod. (See Figure 6-2).

A. The steering control levers are in the neutral

position and the machine creeps forward or backward. (Neutral Adjustment, See Page 19).

Section 6

B. The steering control levers are in the full forward

position and the mower pulls to one side or the other when traveling in a forward direction. (Tracking Adjustment, See Page 20).

Neutral Adjustment

1. Be sure the dump valve levers are in the run position

and the steering control levers are in the neutral lock position.

2. With an operator in the seat, start the engine and

disengage the parking brake.

3. Run the

machine creeps forward or backwards.

engine at full operating speed and check if the

4. Adjust the RH wheel by loosening the jam nuts on 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 6-3).

5. Tighten the jam nuts and repeat for the LH wheel. (See Figure 6-4).

6. Actuate the steering control levers forward and reverse serveral times and return them to the neutral position.

7. Check that the drive wheels remained in neutral and readjust if necessary.

8. Check that the steering control levers hit the stop before the pumps reach full stroke. Adjust as needed.

CONTROL

ROD

LOOSEN HERE

LOOSEN

HERE

390S0149

LOOSEN

HERE

390S0147

LOOSEN HERE

ADJUST HERE

STT99RHCRA

Figure 6-3. RH Steering Control Rod Adjustment

ADJUST HERE

Figure 6-4. LH Steering Control Rod Adjustment

390S0146

Section 6

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 engine and drive components to cool before making any adjustments.

-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.

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 6-3)

-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 19.

6.3 THROTTLE CONTROL AND CHOKE 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.

6.4 BELT ADJUSTMENT

1. If at full speed the mower pulls right, it is an 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 6-4)

-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 19.

2. If at full speed the mower pulls left, it is an indication that the right wheel is turning faster than the left wheel. To adjust this condition, proceed as follows:

WARNING:

Before removing any guards, shut the engine off and remove the ignition key.

All drive belts and cutter deck belts are spring loaded and self-tensioning. The belts should be checked periodically for proper alignment and wear.

6.5 BELT ALIGNMENT

Belt alignment is important for proper performance of your Scag mower. If you experience frequent belt wear or breakage, see your authorized Scag service center for belt adjustment.

Section 6

6.6 CUTTER DECK ADJUSTMENTS

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 that all tires are properly inflated.

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 RH side of the machine, check the distance from the bottom of the cutter deck to the floor. Next check the distance from the bottom of the cutter deck to the floor on the LH 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:

1. On the front LH side of the cutter deck locate the

cutter deck adjusting bolt. (See Figure 6.5)

3. Tighten the serrated hex nut to secure the cutter deck in the proper position.

Cutter Deck Pitch

The pitch of the cutter deck should be 1/4" down toward the front 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 bottom of the cutter deck to the floor at the rear RH side of the cutter deck directly behind the cutter deck hanging chains. Next check the distance from the bottom of the cutter deck to the floor at the front RH side of the cutter deck directly in front of the cutter deck hanging chains. The measurement at the front of the cutter deck should be 1/4" lower than the measurement at 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 1/4" lower, the cutter deck pitch must be adjusted as follows:

1. Loosen the jam nuts on both adjusting rods. (See Figure 6.5)

2. Using a wrench on the spring compression nut (See Figure 6.5) turn the adjusting rods until the 1/4" forward pitch is obtained on both the RH and the LH side of the cutter deck. Tighten both jam nuts.

JAM NUT

ADJUST HERE

CUTTER DECK ADJUSTING BOLT

390S0174

Figure 6-5. Cutter Deck Adjustment

2. Loosen the serrated flange hex nut and move the bolt up or down in the slot to adjust the cutter deck until the distance from the bottom of the cutter deck to the floor is the same as the measurement on the RH side of the machine.

-NOTE-

To prevent the cutter deck from teetering, all four cutter deck hanging chains must have tension on them. If all four chains do not have tension on them and the deck teeters, you must readjust the cutter deck as outlined in the procedures above.

Section 6

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 and the tires are properly inflated.

1. Place the cutter deck in the transport position. Loosen the jam nuts on both ends of the deck height control rod. (See Figure 6.6)

CONTROL ROD

HEIGHT ADJUSTMENT PEDAL

LANYARD PIN

CUTTING

LOOSEN HERE

5.5

HEIGHT

481543

1.5

2.5

3.5

4.5

390S014A

3. Check the cutter deck cutting height by placing the lanyard pin in the 3" position on the cutting height index. Release the deck from the transport positon and allow the deck to move to the 3" cutting height position.

4. Check the measurement from the floor to the cutter blade tip. If the measurement is not at 3", an adjustment can be made using the deck height control rod. (See Figure 6.6)

-NOTE-

If an adjustment had to be made, be sure that the cutter deck can easily be locked into the transport position.

Figure 6-6. Cutter Deck Height Adjustment

2. Turn the control rod (See Figure 6.6) until there is a 1/4" space between the rear deck stop and the top of the cutter deck. (See Figure 6.7). Tighten the jam nuts on the control rod.

1/4"

DECK STOP

390S0175

Figure 6-7. Cutter Deck Stop

Section 7

MAINTENANCE

7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS

HOURS Break-In 8 40 100 200 500 Procedure Comments (First 10)

X Check all hardware for tightness

X Check hydraulic oil level See paragraph 7.3

X Check all belts for proper alignment See paragraph 7.8

X Change engine oil and filter See paragraph 7.4

(First 5)

X Check hydraulic hoses for leaks Use extreme caution when

checking the hydraulic hoses See paragraph 2.5

X Check Coolant Level (Kawasaki Only) See paragraph 7.12

X Check engine oil level See paragraph 7.4

X *Clean mower See paragraph 7.14

X Check condition of blades See paragraph 7.9

X Apply grease to fittings See paragraph 7.2

X Check tire pressure See paragraph 7.10

X Check Coolant Level (Kawasaki Only) See paragraph 7.12

X Check battery electrolyte level, See paragraph 7.7

clean battery posts and cables

X Check belts for proper alignment See paragraph 7.8

X Apply grease to fittings See paragraph 7.2

X Change engine oil See paragraph 7.4

X *Clean air cleaner element See paragraph 7.6

X Check lubricant in cutter deck gearbox See paragraph 7.11

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

MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS (CONT'D)

HOURS Break-In 8 40 100 200 500 Procedure Comments (First 10)

X Apply grease to fittings See paragraph 7.2

X Check hardware for tightness

X Change engine oil filter See paragraph 7.4

X Check hydraulic oil level See paragraph 7.3

X Replace engine fuel filter See paragraph 7.5

X Drain hydraulic system and See paragraph 7.3

replace hydraulic oil Use SAE 20W50

Motor Oil

X Replace hydraulic oil filter See paragraph 7.3

X Replace cutter deck gearbox lubricant See paragraph 7.1

Section 7

X Change Coolant (Kawasaki Only) See paragraph 7.12

7.2 LUBRICATION

GREASE FITTING LUBRICATION CHART (SEE FIGURE 7-1)

LUBRICATION NO. OF

LOCATION INTERVAL LUBRICANT PLACES

1 Caster Wheel Pivot 500 Hours/Yearly Chassis Grease 2

2 Caster Wheel Bearings 100 Hours/Bi-Weekly Chassis Grease 2

3 Brake Actuator 200 Hours/Monthly Chassis Grease 2

4 Cutter Deck Bellcranks 100 Hours/Bi-Weekly Chassis Grease 4

5 Cutter Deck Pusharms 100 Hours/Bi-Weekly Chassis Grease 2

6 PTO Spindle 40 Hours/Weekly +Lithium MP White Grease 2125 1

7 Cutter Deck Spindle 40 Hours/Weekly +Lithium MP White Grease 2125 3

8 Brake Handle 200 Hours/Monthly Chassis Grease 1

9 Cutter Deck Drive Shaft 100 Hours/Bi-Weekly Chassis Grease 3

+ Compatible Greases: Mobilix #2 found at Mobil Service Stations

Ronex MP found at Exxon Service Stations Super Lube MEP #2 & Super Stay-M #2 found at Conoco Stations Shell Alvania #2 found at Shell Service Stations Lidok EP #2 found at industrial shops

Section 7

GREASE FITTING LUBRICATION

LUBRICANT / INTERVAL

LITHIUM MP WHITE GREASE 2125 ( 40 HOURS / WEEKLY )

CHASSIS GREASE ( 100 HOURS / BI-MONTHLY )

CHASSIS GREASE ( 200 HOURS / MONTHLY )

CHASSIS GREASE

( 500 HOURS / YEARLY )

42 5 3 99

390S0145

Figure 7.1 Lubrication Fitting Points

Section 7

7.3 HYDRAULIC SYSTEM

A. Checking Hydraulic Oil Level

The hydraulic oil level should be checked after the first 10 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.

1. Wipe dirt and contaminants from around the reservoir cap. Remove the cap from the hydraulic oil reservoir.

2. Visually check the level of hydraulic oil. Hydraulic oil must be at least 3-1/4" 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).

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.

-NOTE-

The hydraulic oil should be changed if you notice the presence of water or a rancid odor to the hydraulic oil.

1. Park the mower on a level surface and stop the engine.

2. Place a suitable container under the hydraulic oil reservoir. Remove the fill cap from the reservoir. Remove the drain plug from the bottom of the reservoir. (See Figure 7-2). Allow the fluid to drain into the container and properly discard it.

3. Clean the fill cap and install it onto the reservoir.

HYDRAULIC OIL

RESERVOIR

STT99HOR

Figure 7-2 Hydraulic Oil Reservoir

3. Re-install the drain plug into the reservoir and be sure it is tight.

-NOTE-

Before refilling the hydraulic oil reservoir the hydraulic oil filter should be chaged as outlined in section C on the next page.

4. Fill the reservoir to 3-1/4" inches from the top of the filler neck with 20W50 motor oil.

5. Replace the reservoir fill cap. Start the engine and drive forward and backward for two minutes. Check the oil level in the reservoir. If necessary, add oil to the reservoir.

Section 7

STT99CEC

ENGINE OIL FILTER

DRAIN PLUG

HYDRAULIC OIL

FILTER

390S0155

Figure 7-3 Hydraulic Oil Filter

C. Changing Hydraulic Oil Filter Element

The hydraulic oil filter should be changed after every 500 hours of operation or annually, whichever occurs first.

7.4 ENGINE OIL

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.

1. Remove the oil filter element (Figure 7-3) and properly discard it. Fill the new filter with clean oil and install the filter. Hand tighten only.

2. Run the engine at idle speed with the speed control lever in neutral for five minutes.

3. Check the oil level in the hydraulic tank. It must be 3-1/4" inches from the top of the filler neck. If necessary, add SAE 20W50 motor oil.

ENGINE OIL

DIPSTICK

Figure 7-5 Drain Plug Location

B. Changing Engine Crankcase Oil

After the first 5 hours of operation, change the engine crankcase oil and replace the oil filter. Thereafter, change the engine crankcase oil after every 100 hours of operation or bi-weekly, whichever occurs first. Refer to the Engine Operators Manual furnished with this mower for instructions.

ENGINE OIL FILTER

DRAIN PLUG

390S0156

STT99CEC

Figure 7-6 Engine Oil Filter Location

Figure 7-4 Engine Fill Stick

Section 7

C. Changing Engine Oil Filter

After the first 5 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.

7.5 ENGINE FUEL SYSTEM

To avoid injury from burns, allow the mower to cool before removing the fuel tank cap and refueling.

FUEL FILTER

HOSE

CLAMPS

1. Close the shutoff valve. Remove the two clamps securing the fuel filter to the fuel hose. Remove the fuel filter.

2. Install a new fuel filter. Be sure it is installed in the proper direction. Secure to the fuel hose using the two clamps.

7.6 ENGINE AIR CLEANER

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 biweekly, whichever occurs first and replace the element if required.

-NOTE-

In extremely dusty conditions it may be necessary to check the element once or twice daily to prevent engine damage.

STT99FF

Figure 7-7 Fuel Filter

A. Filling the Fuel T ank

Fill the fuel tank at the begining of each operating day to within 1 inch below the filler neck. Do not overfill. Use clean, fresh unleaded gasoline with a minimum octane rating of 87.

B. Replacing In-Line Fuel Filter Element

The in-line fuel filter (Figure 7-7) should be replaced after every 500 hours of operation or annually, whichever occurs first.

1. Remove the wing nut securing the air cleaner cover to the engine. Remove the air cleaner cover and set aside.

2. Remove the air cleaner and inspect.

3. Clean or replace the air cleaner and foam pre-cleaner as recommended by the engine manufacturer.

Section 7

7.7 BATTERY

A. Checking Electrolyte Level and Cleaning Battery

After every 40 hours of operation or weekly, whichever occurs first, check the electrolyte level in the battery and clean the battery and connections. Dirt and fluid on the top of the battery can cause the battery to discharge. Corrosion of the battery terminals or loose connections will cause poor battery performance.

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.

BA TTERY ELECTROLYTE FIRST AID

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.

1. Loosen the two plastic wing nuts and then remove the battery cover.

2. Remove the battery cell caps. Visually inspect electrolyte level in the cells. If electrolyte is below the bottom of vent well, fill with clean distilled water to the bottom of vent wells (1/4 to 1/2 inch above the plates). Install the battery cell caps.

-IMPORTANT-

Do not overfill the battery. Electrolyte will overflow through the vent tube onto parts of the machine, resulting in severe corrosion.

3. Clean the cable ends and battery posts with steel wool. Use a solution of baking soda and water to clean the battery. Do not allow the solution to enter the battery cells.

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.

B. 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.

4. Tighten the cable connections securely and apply a light coat of silicone dielectric grease to the terminal connections to prevent corrosion.

5. Install the battery cover.

Whenever possible, remove the battery from the mower before charging and make sure the electrolyte covers the plates in all cells.

Section 7

WARNING:

BATTERIES PRODUCE EXPLOSIVE GASES. Charge the battery in a well ventilated space so gases produced while charging can dissipate.

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.

C. Jump Starting

1. The booster battery must be a 12 volt type. If a vehicle is used for jump starting, it must have a negative ground system.

2. When connecting the jumper cables, connect the positive cable to the positive battery post, then connect the negative cable to the negative battery post.

7.8 DRIVE BELTS

WARNING:

Always wear proper hand and eye protection when working with cutter blades.

3. Check the cutter blades for straightness. If the cutter 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.

4. If a blade cutting edge is dull or nicked, it should be 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.

All drive belts are spring loaded and self-tensioning, however after the first 2, 4, 8 and 10 hours of operation, the belts should be checked for proper alignment and wear. Thereafter, check the belts after every 40 hours of operation or weekly, whichever occurs first.

-NOTE-

If you experience frequent belt wear or breakage, see your authorized Scag service center for belt adjustment.

7.9 CUTTER BLADES

A. Blade Inspection

1. Remove the ignition key before servicing the blades.

2. Raise the mower deck to the highest position. Place the lanyard pin in the highest cutting height positon to prevent the cutter deck from falling.

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.

1. Sharpen the cutting edge at the same bevel as the original. See Figure 7-9. Sharpen only the top of the cutting edge to maintain sharpness.

Section 7

DO NOT CUT IN

ANGLE BLADE BACK

HEX NUT-TORQUE TO 75 LB-FT

X MUST NOT EXCEED

1/3 BLADE WIDTH

390S0139

Figure 7-9 Blade Sharpening

2. Check the balance of the blade. If the blades are out 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.

1. Remove the ignition key before replacing the blades.

2. Raise the mower deck to the highest position. Place the lanyard pin in the highest cutting height positon to prevent the cutter deck from falling.

SPINDLE SHAFT

SPINDLE ASSEMBLY

WASHER

CUTTER BLADE

HEX HEAD BOLT

CUTTER

DECK

HEX HEAD

BOLT / NUT

SPACER

CUTTER

BLADE

390S0160

Figure 7-10 Blade Replacement

-NOTE-

Be sure that the blade is installed with the lift wing toward the top.

5. Install the spacer onto the blade bolt and insert the bolt into the cutter spindle shaft.

3. Secure the cutter blades to prevent them from 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. (Figure 7-10).

-NOTE-

The front of the machine will have to rasied slightly to remove the blade bolt from the cutter spindle.

4. To install the new cutter blade, put the flat washer onto the blade bolt and slide the bolt into the hole in the cutter blade.

6. Install the hex nut to the blade bolt at the top of the cutter spindle. Secure the blades from rotating and torque to 75 ft-lbs. (See Figure 7-10)

7.10 TIRES

Check the tire pressures after every 8 hours of operation or daily.

Caster Wheels ......................................... 25 PSI

Drive Wheels .......................................... 12 PSI

Section 7

7.11 CUTTER DECK GEARBOX

A. Checking Lubricant Level

CAUTION:

The cutter deck gearbox can reach high operating temperatures. Allow the cutter deck gearbox to cool before servicing.

CUTTER DECK

CHECK PLUG

Figure 7-12 Cutter Deck Gearbox

The fluid level in the cutter deck gearbox (Figure 7-12) should be checked after every 100 hours of operation or bi-weekly, whichever occurs first.

1. Lower the cutter deck to to its lowest position to gain access to the cutter deck gearbox.

GEARBOX

390S0161

2. Remove the drain plug and drain the lubricant into the container and properly discard it.

3. Re-install the drain plug and add EP-80/90 lubricant through the check plug hole in the gearbox until it is level with the bottom of the check plug hole. Install the check plug and tighten securely.

7.12 KA WASAKI COOLING SYSTEM

WARNING:

To avoid burns, always allow the engine to cool before removing the radiator cap.

A. Checking Coolant Level

The coolant level should be checked before each day of operation.

1. Remove the radiator cap by turning it slowly counterclockwise to the first stop and allow any pressure to be released. Push down on the cap and turn counterclockwise to remove.

2. Visually check the coolant level. The coolant level should be up to the bottom of the filler neck as shown in figure 7-13. Add a mixture of coolant and soft water as needed.

2. Clean and remove the check plug from the side of the gearbox (See Figure 7-12). Visually check that the lubricant level is up to the bottom edge of the check plug hole. If lubricant is low, add SAE 80W90 lubricant through the check plug hole in the gearbox until it is level with the bottom of the check plug hole. Install the check plug and tighten securely.

B. Changing Lubricant

The lubricant in the cutter deck gearbox should be changed after every 500 hours of operation or yearly, whichever occurs first.

1. Place a suitable container beneath the cutter deck gearbox and locate the gearbox drain plug.

-NOTE-

Refer to the coolant manuafacture's instructions for the proper coolant mixture ratio.

Fill to Bottom of Filler Neck

030467-13

Figure 7-13 Cutter Deck Gearbox

Section 7

3. Replace the radiator cap. Push down on the cap and

turn clockwise until it stops.

-NOTE-

The cooling system should be flushed and the coolant replaced every 500 hours of operation or annually. See your Scag dealer for proper coolant replacement.

B. Cleaning the Radiator Debris Screen

After each day of operation, remove and clean the radiator debris screen.

CAUTION:

To avoid personal injury, always wear safety glasses when using compressed air.

7.13 BODY, DECK, AND UPHOLSTERY

CAUTION:

Do not wash any portion of the equipment while it is hot. Do not wash the engine; use compressed air.

1. After each use, wash the mower and cutter deck. Use cold water and automotive cleaners. Do not use pressure cleaners.

2. Do not spray electrical components.

3. Use a mild soap solution or a vinyl/rubber cleaner to clean the seat.

4. Repair damaged metal surfaces using Scag touch-up paint available from your authorized Scag dealer. Wax the mower for maximum paint protection.

1. Pull the debris screen up to remove.

2. Clean the debris screen with compressed air or a water hose.

-NOTE-

Check the radiator for excessive debris and clean with compressed air. Never spray a hot engine with water, use only compressed air to remove debris.

3. Re-install the debris screen to the radiator.

C. Checking The Fan Belt T ension

Periodicaly check the fan belt tension. The belt should deflect 1/2" with 10 pounds of pressure. See your Scag dealer if the belt is in need of adjustment or replacement.

Section 8

52" & 61" CUTTER DECKS

Section 8

13 12

24 58

50 11

14 29 20

29 21

58 66

26 12 47

44 61 63

51 23

621265

56 33

28 31

2852

22A

70 71

22A

23 68

STT99CD

Section 8

52"& 61" CUTTER DECKS

Ref. Part No. No. Description 52 61

1 461137 Cutter Deck (Includes decals) x

461141 Cutter Deck (Includes decals) x 461145 Cutter Deck Bahia (Not Shown) x

461147 Cutter Deck Bahia (Not Shown) x 2 04003-04 Bolt, Carriage 5/16-18 x 1" x x 3 04019-04 Nut, Hex Serrated Flange 3/8-16 x x 4 481625-01 Wing nut, 3/8-16 x x 5 481632 Anti-Scalp Wheel x x 6 04003-26 Bolt, Carriage 3/8-16 x 4" x x 7 422478 Anti-Scalp Wheel Bracket x x 8 04017-27 Bolt, Hex Serrated Flange 3/8-16 x 1" x x

9 04040-10 Flatwasher, 5/8" (.688 x 1.75 x .134) x x

10 04021-05 Locknut, 3/8-16 Center Lock x x 11 461054 Discharge Chute x

461055 Discharge Chute x

461058 Discharge Chute Bahia (Not Shown) x

461059 Discharge Chute Bahia (Not Shown) x 12 04001-09 Bolt, Hex Head 5/16-18 x 1" x x 13 04021-10 Nut, Hex Elastic Stop 5/16-18 x x 14 04020-09 Nut, 5/8-11 UNC x x 15 45332 Push Arm Shaft x x 16 04001-41 Bolt, Hex Head 5/8-11 x 9-1/2" x x 17 04003-12 Bolt, Carriage 5/16-18 x 3/4" x x 18 04001-108 Bolt, Hex Head 5/16-18 x 4-1/2" x x 19 04063-08 Key, 1/4 x 1/4 x 2" x x 20 04063-01 Key, 1/4 x 1/4 x 1-1/4" x x 21 04043-04 Flatwasher,3/8-.39 x .938 x .105 HD x x 22 04001-10 Bolt, Hex Head 5/16-18 x 1-1/4" x x 22A 04001-11 Bolt, Hex Head 5/16-18 x 1-1/2” x x 23 04019-03 Nut, Hex Serrated Flange 5/16-18 x x 24 04001-01 Bolt, Hex Head 1/2-20 x 3/4" x x 25 48100-15 Bushing, .376 I.D. Oilite x x 26 04030-03 Lockwasher, 5/16" x x 27 04040-15 Flatwasher, 5/16" (.375 x .875 x .083) x x 28 04041-07 Flatwasher, 3/8" (.391 x .938 x .105) x x 29 04021-09 Nut, Hex Elastic Stop 3/8-16 x x 30 04001-62 Bolt, Hex Head 3/8-16 x 3-1/4" x x 31 04001-31 Bolt, Hex Head 3/8-16 x 2-1/2" x x 32 04001-20 Bolt, Hex Head 3/8-16 x 1-1/2" x x 33 04001-136 Bolt, Hex Head 3/8-16 x 1-1/2" Grade 8 x x 34 46631 Spindle Assembly x x

Ref. Part No. No. Description 52 61

35 43298 Spindle Shaft x x 36 481024 Seal, Top x x

37 481022 Bearing Assembly x x 38 43294 Spindle Housing x x 39 43312 Spacer, Outside x x 40 43296 Spacer, Inside x x 41 481025 Seal, Bottom x x

42 43297 Spindle Bushing, Bottom x x 43 481035 Nut, Special 1 - 1/16-18 x x 44 48114-04 Grease Fitting x x 45 48677 Relief Fitting, Tapered Spindle x x 46 481050 Spring, Discharge Chute x x 47 48038 Guide, Roller x x 48 48108 Cutter Blade, 18" x

48111 Cutter Blade, 21" x 49 481516 Gearbox Assembly, Deck Drive x x 50 481557 Belt, Cutter Deck Drive x

481558 Belt, Cutter Deck Drive x 51 45944 Roller Shaft x x 52 48926 Tapered Hub, 1-1/8" Bore x x 53 48141 Tapered Hub, 1" Bore x x 54 461075 Idler Arm, Cutter Deck x x 55 48224 Bearings, Ball x x 56 48269 Pulley, Idler x x 57 422713 Pivot Weldment, Idler x x 58 48753 Pulley, 6.35 O.D. x x 59 422426 Mounting Plate, Gearbox x x 60 422412 Belt, Cover x

422413 Belt, Cover x 61 461036 Pusharm (includes items 44, 62, 63 & 64) x x 62 43309 Spacer, Spindle x x 63 04020-16 Nut, Hex Head 5/8-18 UNF x x 64 48763 Rod End, 5/8" Male RH Thread x x 65 04001-79 Bolt, Hex Head 5/8-11 x 4-1/2" x x 66 481597 Spring, Cutter Deck x x 67 48967 Pulley, 6.95 O.D. x

48753 Pulley, 6.35 O.D. x 68 04110-03 U-Nut, 3/8-16 x x 69 04021-13 Nut, Hex Elastic Stop 5/8-11 x x 70 422600 Discharge Baffle 52” x 71 422601 Discharge Baffle 61” 72 43503 Pivot, Idler - Short x

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

CUTTER DECK CONTROLS, 52" & 61" DECKS

Section 8

10 42

26 25

28 52

52 51

CUTTER DECK

4137 28

13713

31 7

STT99CDC

Section 8

CUTTER DECK CONTROLS, 52" & 61" DECKS

Ref. Part No. No. Description

1 481549 Spring, Deck Lift 2 481763 Link, Deck Lift 3 481765 Rod End, Female - 1/2-20 RH 4 481766 Rod End, Female - 1/2-20 LH 5 04020-27 Nut, Jam 1/2-20 RH 6 04020-28 Nut, Jam 1/2-20 LH 7 422439 Flatwasher, Spring Stop 8 481560 Slide Weldment, Height Adjustment

9 43391 Spacer, Decklift Pedal

10 43487 Pin, Decklift 11 43472 Swivel Joint, LH 12 43473 Swivel Joint, RH 13 45904 Bellcrank Weldment, LH Rear 14 45905 Bellcrank Weldment, RH Rear 15 45907 Bellcrank Weldment, RH Front 16 422381 Guide, Short 17 422380 Guide, Long 18 422346 Lockplate, Decklift 19 46975 Deck Latch (Includes items 20& 21) 20 48100-14 Bushing, .502 ID. 21 481428 Grip, Deck Latch 22 45945 Footplate Weldment, Decklift 23 422451 Footplate, Height Adjustment 24 45906 Bellcrank Weldment, LH Front 25 04012-09 Set Screw, 5/16-18 x 1/2" Sq. Head 26 04063-23 Key, 1/4 x 1/4 x 3-1/4" 27 04041-14 Flatwasher, 1" (1.062 x 1.50 x .048) 28 48114-04 Grease Fitting 29 04001-91 Bolt, Hex Head 7/16-14 x 2-1/2" 30 04021-11 Nut, Hex Elastic Stop 7/16-14 31 04004-33 Stud, 5/8-11 x 22.0" 32 04067-05 Ring Pin, 1/2 x 3.30" 33 04050-08 Ring, Retaining 1" External "E" 34 04063-01 Key, 1/4 x 1/4 x 1-1/4" 35 04003-11 Bolt, Carriage 3/8-16 x 1-1/4" 36 422403 Bracket, Cutting Height Adjustment 37 48100-08 Bushing, 1.003 ID. 38 481547 Lanyard, Deck Height Pin 39 48540 Chain 40 04001-20 Bolt, Hex Head 3/8-16 x 1-1/2" 41 04019-04 Nut, Hex Serrated Flange 3/8-16 42 04050-10 Ring, Retaining 1/2" External "E" 43 04001-74 Bolt, Hex Head 1/2-13 x 3" 44 04003-04 Bolt, Carriage 5/16-18 x 1" 45 04009-02 Bolt, Shoulder 1/2 x 3/4" 46 04019 -03 Nut, Hex Serrated Flange 5/16-18 47 04014-03 Screw, Cap 5/16-18 x 3" FHHS 48 04021-07 Nut, Hex Elastic Stop 1/2-13 49 04021-10 Nut, Hex Elastic Stop 5/16-18 50 04050-01 Ring, Retaining 5/8" External "E" 51 04040-09 Flatwasher, 5/8" (.656 x 1.312 x .095) 52 04020-09 Nut, Hex 5/8-11 53 481522 Spring, Helper (61” Cutter Deck Only) 54 04021-05 Locknut, 3/8-16 Center Lock 55 04021-09 Nut, 3/8-16 Elastic Stop 56 04041-07 Flatwasher, 3/8”

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

Section 8

SHEET METAL COMPONENTS

20 21

654

7 8

1110

13 14

31 32

38 41 39

STT99SMC

Section 8

SHEET METAL COMPONENTS

Ref. Part No. No. Description

1 451079 Fender Weldment, RH 2 04001-63 Bolt, Hex Head 5/16-18 x 3-1/2" 3 04017-16 Screw, Hex Serrated Flange 5/16-18 x 3/4" 4 04041-11 Flatwasher, 3/8" (.406 x 1.50 x .179) 5 45926 Seat Plate Weldment, Upper 6 481532 Seat 7 43462 Pin Retainer, Spring 8 481389 Spring, Seat

9 48015 Battery

10 48903 Pad, Battery Cover 11 421274 Cover, Battery 12 04003-12 Bolt, Carriage 5/16-18 x 3/4" 13 421703 Plate, Battery Box 14 04029-01 Wing Nut, 1/4-20 x 3/4" 15 04019-03 Nut, Hex Serrated Flange 5/16-18 16 04003-01 Bolt, Carriage 1/4-20 x 6" 17 48657 Rubber Pad 18 43336 Spacer 19 04003-04 Bolt, Carriage 5/16-18 x 1" 20 45925 Seat Plate Weldment, Lower 21 04021-10 Nut, Hex Elastic Stop 5/16-18 22 481943 Seat Adjustment, Track Set 23 04019-04 Nut, Hex Serrated Flange 3/8-16 24 04017-27 Screw, Hex Serrated Flange 3/8-16 x 1" 25 451078 Fender Weldment, LH 26 422567 Foot Plate 27 04021-09 Nut, Hex Elastic Stop 3/8-16 28 04001-19 Bolt, Hex Head 3/8-16 x 1-1/4" 29 04001-125 Bolt, Hex Head 5/8-11 x 4" 30 04021-13 Nut, Hex Elastic Stop 5/8-11 31 481559 Cap, Grease 32 04021-20 Nut, Hex Elastic Stop 1.0-14 33 48668 Bearing W/Race 34 48114-04 Grease Fitting 35 45935 Extension Weldment, Caster 52" Deck (LH &RH)

45936 Extension Weldment, Caster 52"B & 61" (LH) 45937 Extension Weldment, Caster 52"B (RH) & 61"B (LH &RH)

45989 Extension Weldment, Caster 61"(RH) 36 481025 Seal, 2.00 OD. x 1.625 Bore 37 04021-07 Nut, Hex Elastic Stop 1/2-13 38 45934 Yoke Weldment, Caster 39 04001-134 Bolt, Hex Head 1/2-13 x 7-1/2" 40 43430 Sleeve 41 481551 Wheel Assembly (Includes items 34 & 42 thru 47) 42 481613 Tire 43 481612 Rim Assembly (Includes item 55) 44 04041-07 Washer, 3/8’ 45 481284 Bumper, Rubber 46 48566 Cable, Seat Stop 47 04001-59 Bolt, Hex Head 1/4-20 x 1-1/4" 48 04019-02 Nut, Hex Serrated Flange 1/4-20 49 04060-01 Roll Pin, Spring 5/32 x 3/4" 50 46986 Caster Wheel Assembly (Includes items 31 thru 47) - 52"B (RH) & 61"B (LH &RH)

46984 Caster Wheel Assembly (Includes items 31 thru 47) - 52" Deck (LH &RH)

46985 Caster Wheel Assembly (Includes items 31 thru 47) - 52"B & 61" (LH)

461040 Caster Wheel Assembly (Includes items 31 thru 47) - 61"(RH) 51 481532-01 Back Cushion 52 481532-02 Cushion Assembly 53 481532-03 Arm Pad, RH

481532-04 Arm Pad, LH 54 48831-01 Bracket, Armrest-LH

48831-02 Bracket, Armrest-RH 55 48114-06 Grease Fitting,

DECK DRIVE COMPONENTS

Section 8

2018

35 33

70 34

34 37

46 8 6

7 13

12 15

43 44

FRAME

60 58

57 67

STT99DDC

Section 8

DECK DRIVE COMPONENTS

Ref. Part No. No. Description

1 422594 Belt Guard 2 481531 Hinge, Belt Guard 3 04003-07 Bolt, Carriage 1/4-20 x 1/2" 4 04019-02 Nut, Hex Serrated Flange 1/4-20 5 04003-02 Bolt, Carriage 1/4-20 x 3/4" 6 422386 Brace, Engine Mounting 7 04001-19 Bolt, Hex Head 3/8-16 x 1" 8 04021-09 Nut, Hex Elastic Stop 3/8-16 9 481284 Bumper, Rubber 10 04019-03 Nut, Hex Serrated Flange 5/16-18 11 481460 Belt, Deck Drive 12 481461 Belt, Pump Drive 13 481522 Spring, Main Drive 14 451021 Pump Mounting Weldment 15 43428 Base, Clutch Anti-Rotation 16 04019-05 Nut, Hex Serrated Flange 7/16-14 17 481469 Isolator, Rubber 18 481530 Electric Clutch 19 04063-06 Key, 1/4 x 1/4 x 1-1/2" 20 04030-05 Lockwasher, 7/16" 21 04001-101 Bolt, Hex Head 7/16-20 x 2-1/2" 22 48030-09 Clamp, Cable 1/2" ID. 23 04030-03 Lockwasher, 5/16" 24 04020-03 Nut, Hex 5/16-18 25 481535 Pulley, 6.00 OD. 1.125 Bore 26 04030-02 Lockwasher, 1/4" 27 422714 Base, Idler Arm 28 04001-09 Bolt, Hex Head 5/16-18 x 1" 29 04021-10 Nut, Hex Elastic Stop 5/16-18 30 04001-46 Bolt, Hex Head 3/8-16 x 2-1/4" 31 04041-07 Flatwasher, 3/8" (.391 x .938 x .105) 32 48181 Pulley, Idler 33 461079 Idler Arm W/Bearings (Includes Item 35) 34 04043-04 Flatwasher, 3/8 GR 8 Special 35 48224 Ball Bearings 36 04019-04 Nut, Hex Serrated Flange 3/8-16 37 04001-136 Bolt, Hex Head 3/8-16 x 1-1/2" 38 481398 Pulley, 6.35 Dia. Taper Bore 39 481536 Tapered Hub, 1.00 Bore 40 04012-05 Setscrew, Hex Socket 1/4-20 x 1/2" 41 04001-138 Bolt, Hex Head 3/8-16 x 3-3/4" 42 461091 Idler Arm Assembly (Includes item 35) 43 04030-04 Lockwasher, 3/8" 44 04020-04 Nut, Hex 3/8-16 45 43277 Spacer 46 04021-05 Locknut, Hex Center Lock 3/8-16 47 48198 Pulley, Idler 5.00 Dia. 48 48586 Pulley 49 04063-14 Key, 5 x 5 x 25 mm 50 481309 Latch, Hood

Ref. Part No. No. Description

51 04010-01 Screw, Phillips Washer Head #10-32 x 1/2" 52 04031-01 Lockwasher, #10-32 External Tooth 53 04020-01 Nut, Hex #10-32 54 46977 Spindle Assembly (Includes items 57 thru 67) 55 04001-10 Bolt, Hex Head 5/16-18 x 1-1/4" 56 04063-20 Key, 1/4 x 1/4 x 1" 57 43294 Spindle Housing 58 43296 Spacer, Inside 59 43297 Spindle Bushing, Bottom 60 43312 Spacer, Outside 61 43321 Shaft, PTO Deck Drive 62 481022 Roller Bearing Assembly 63 481024 Seal, 2.00 OD. x 1.50 Bore 64 481025 Seal, 2.00 OD. x 1.625 Bore 65 481035 Nut, 1.06-18 66 48114-04 Grease Fitting 1/4-28 Self Tap 67 48677 Relief Fitting 68 481528 Drive Shaft 69 04001-109 Bolt, Hex Head 1/4-20 x 1-3/8" Full Thread 70 04001-31 Bolt, Hex Head 3/8-16 x 2.50 71 43503 Pivot, Idler - Short 72 04001-21 Bolt, Hex Head 3/8-16 x 1-3/4” 73 04063-20 Key, 74 04021-05 Nut, Center Lock 3/8-16 75 04012-08 Screw, Set 3/8-16 x 3/8

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

ENGINE AND ATTACHING PARTS - KOHLER

Section 8

REF. PUMP

MTG. WELDMENT

FRAME

20 16

STT99EAP-KH

Section 8

ENGINE AND A TTA CHING PARTS - K OHLER

Ref. Part No. No. Description

1 422593 Muffler Guard 2 04017-05 Screw, Hex Serrated Flange 1/4-20 x 3/4" 3 * Muffler, Part Of Engine (Available only through Kohler) 4 04011-09 Screw, #10-16 x 1/2" 5 04110-01 U-Nut, 1/4-20 6 481584 Exhaust Elbow 7 43421 Spacer, Engine (Kohler) 8 481758 Engine, Kohler 22CH (Available only through Kohler, Eng. Spec. PS 76510)

481759 Engine, Kohler 25 CH (Available only through Kohler, Eng. Spec. PS 68613)

9 04001-19 Bolt, Hex Head 3/8-16 x 1"

10 04030-04 Lockwasher, 3/8" Spring 11 04001-21 Bolt, Hex Head 3/8-16 x 1-3/4" 12 04021-09 Nut, Hex Elastic Stop 3/8-16 13 04001-32 Bolt, Hex Head 3/8-16 x 1-1/4" 14 422396 Plate, Engine Mounting 15 48402-01 Extension, Oil Drain 2" 16 48257 Pipe Cap, Hex 3/8" 17 422475 Rear Cover 18 04003-12 Bolt, Carriage 5/16-18 x 3/4" 19 04019-03 Nut, Hex Serrated Flange 5/16-18 20 48600-01 Street Elbow, 3/8" NPT

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

ENGINE AND ATTACHING PARTS - KAWASAKI

Section 8

REF. PUMP

MTG. WELDMENT

FRAME

STT99EAP-K

Section 8

ENGINE AND ATTACHING PARTS - KAWASAKI

Ref. Part No. No. Description

1 422593 Muffler Guard 2 04017-05 Screw, Hex Serrated Flange 1/4-20 x 3/4" 3 * Muffler, Part Of Engine (Available only through Kawasaki) 4 04011-09 Screw, #10-16 x 1/2" 5 04110-01 U-Nut, 1/4-20 6 481584 Exhaust Elbow (Kawasaki) 7 43420 Spacer, Engine (Kawasaki) 8 481574 Engine, Kawasaki 22KA (Available only through Kawasaki)

9 04002-03 Bolt, M8-1.25 x 25 Grage 8.8

10 04030-04 Lockwasher, 3/8" Spring 11 04001-21 Bolt, Hex Head 3/8-16 x 1-3/4" 12 04021-09 Nut, Hex Elastic Stop 3/8-16 13 04001-32 Bolt, Hex Head 3/8-16 x 1-1/4" 14 422396 Plate, Engine Mounting 15 48402-05 Extension, Oil Drain 4" 16 48257 Pipe Cap, Hex 3/8" 17 422475 Rear Cover 18 04003-12 Bolt, Carriage 5/16-18 x 3/4" 19 04019-03 Nut, Hex Serrated Flange 5/16-18 20 48600-01 Street Elbow, 3/8" NPT 21 43498 Spacer, Engine Bolt 22 481730-01 Street Elbow, 45 Deg.-3/8" NPT

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

BRAKE AND STEERING COMPONENTS

Section 8

TO RH PUMP

TO LH PUMP

16 8

9 22

59 61

43 44 45

11 21

51 23

73 48

58 5

38 39

15 65

STT99B&SC

Section 8

BRAKE AND STEERING COMPONENTS

Ref. Part No. No. Description

1 481599 Grip, Handle Bar 2 461037 Handle Bar (Includes item 1) 3 04001-32 Bolt, Hex Head 3/8-16 x 1-1/4" 4 04030-04 Lockwasher, 3/8" 5 04041-07 Flatwasher. 3/8" (.391 x .938 x .105) 6 422372 Bar, Control Lever 7 45915 Control Lever 8 04001-17 Bolt, Hex Head 5/16-18 x 2" 9 04021-10 Nut, Hex Elastic Stop 5/16-18 10 04001-45 Bolt, Hex Head 3/8-16 x 2" 11 04021-09 Nut, Hex Elastic Stop 12 461080 Bracket, Control (Includes items 13 & 20) 13 48224 Ball Bearings, Neutral Return 14 04001-10 Bolt, Hex Head 5/16-18 x 1-1/4" 15 04069-01 Pin, Rue Cotter 3/8 DIA 16 04110-02 U-Nut, 5/16-18 17 04021-13 Nut, Hex Elastic Stop 5/8-11 18 45973 Bracket, Control Lever LH

422362 Bracket, Control Lever RH 19 04003-04 Bolt, Carriage 5/16-18 x 1" 20 43465 Spacer, Bearing 21 04003-12 Bolt, Carriage 5/16-18 x 3/4" 22 04019-03 Nut, Hex Serrated Flange 5/16-18 23 04050-01 Ring, Retaining 5/8" External "E" 24 461090 Gas Damper (Includes Ball Stud & Spring Clip)

481356 Ball Stud, Gas Spring (Not Shown)

481357 Spring Clip, Gas Spring (Not Shown) 25 45918 Bracket, Neutral Return 26 04003-02 Bolt, Carriage 1/4-20 x 3/4" 27 04040-14 Flatwasher, 1/4" (.312 x .750 x .065) 28 04021-08 Nut, Hex Elastic Stop 1/4-20 29 43477 Pin, Retaining Spring 30 481389 Spring 31 04060-01 Roll Pin, Spring 5/32 x 3/4" 32 04061-06 Pin, Cotter 9/16 x 1-1/2" 33 481539 Rod End, Male 3/8-24 RH THD. 34 04020-25 Nut, 3/8-24 RH THD. 35 43463 Tube, Control Link 36 04020-26 Nut, Hex 3/8-24 LH THD. 37 481538 Rod End, Male 3/8-24 LH THD. 38 451073 Brake Linkage Weldment LH 39 451074 Brake Linkage Weldment RH 40 04001-09 Bolt, Hex Head 5/16-18 x 1” 41 48114-04 Grease Fitting 42 461082 Lever, Parking Brake (Includes item43) 43 481548 Grip, Parking Brake 44 04001-22 Bolt, Hex Head 3/8-16 x 2-3/4" 45 04019-04 Nut, Hex Serrated Flange 3/8-16 46 48343-02 Clevis, Traction Control 47 04064-02 Pin, Clevis 3/8-16 x 1-1/16" 48 04061-02 Pin, Cotter 3/32 x .75 49 04004-34 Rod, Parking Brake 50 48544 Rod End, LH THD.

Ref. Part No. No. Description

51 48796 Bushing, Self Align 52 04001-08 Bolt, Hex Head 5/16-18 x 3/4" 53 04001-147 Bolt, Hex Head 3/8-24 x 5-1/4", 2-3/4" Thread 54 481637 Switch 55 04010-12 Screw, Hex SLTD WSHR Head #10-32 x 3/4" 56 45978 Brake Linkage, LH

45979 Brake Linkage, RH 57 45953 Bellcrank, Brake Actuator 58 48807 Spring 59 04001-145 Bolt, Hex Head 1/2-13 x 3-1/2" 60 04021-19 Locknut, Hex 1/2-13 Center Lock 61 04001-52 Bolt, Hex Head 1/2-13 x 2-1/2" 62 481529 Wheel Motor, Ross 63 46929 Wheel Hub Assembly 64 481601 Brake Band Assembly 65 04064-03 Pin, Clevis 3/8" Dia. x 2" 66 43063 Spacer 67 48513 Brake Drum 68 422487 Spacer, Wheel 69 481850 Wheel Assembly 24 x 12-12 Turf Master

481851 Rim W/Valve Stem

481852 Tire, 24 x 12-12 Turf Master 70 04028-01 Lug Nut, 1/2-20 71 48680 Nut, Hex Castle 72 422373 Plate, Threaded 73 04001-20 Bolt, Hex Head 3/8-16 x 1-1/2" 74 422494 Bracket, Switch Mounting 75 422493 Bracket, Switch Actuator 76 04017-16 Bolt, Hex Serrated Flange 5/16-18 x 3/4" 77 04063-25 Key, Woodruff 5/16 x 1”

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

FUEL AND HYDRAULIC SYSTEM

Section 8

28 2

28 19

18 24

12 11 10 98

5717

Dump Valve

22 23

3836

3545 45

ENGINE

20 39

19 28

STT99F&HS390S0166

Section 8

FUEL AND HYDRAULIC SYSTEM

Ref. Part No. No. Description

1 48551 Pump, Sunstrand BDP-10L117 2 48811 Hose, 3/8" ID. Pushlock-38.0" (order by the inch) 3 04043-04 Flatwasher, 3/8" (.391 x .938 x .105) Grade 8 4 04021-09 Nut, Hex Elastic Stop 3/8-16 5 04001-32 Bolt, Hex Head 3/8-16 x 1-1/4" 6 04001-20 Bolt, Hex Head 3/8-16 x 1-1/2" 7 421203 Clamp Plate, Pump Control 8 422379 Lever, Control 9 04017-05 Screw, Hex Serrated Flange 1/4-20 x 3/4" 10 48829 Block, Pump Control 11 04030-02 Lockwasher, 1/4" Spring 12 04001-59 Bolt, Hex Head 1/4-20 x 1-1/4" 13 04060-06 Roll Pin, Spring 3/16 x 3/4" 14 04010-10 Screw, Phillips RD. Head 1/4-20 x 2" 15 04021-08 Nut, Hex Elastic Stop 1/4-20 16 48603-06 O-Ring 17 48350-09 Elbow, 90 Degree 18 48353-06 Coupling 19 48811 Hose, 3/8" ID Push Lock 20 48603-02 O-Ring 21 48572-04 Union, 3/4-16 JIC x 3/4-16 O-Ring 22 481611 Hose Assembly, Pump 23 48350-02 Elbow, 90 Degree 3/4-16 JIC x 3/4-16 O-Ring 24 48811 Hose, 3/8" ID. Pushlock-19.0" (order by the inch) 25 481661 Cap, Fuel Tank W/Gauge 26 48603-03 O-Ring 27 481467-01 Connector, 7/16" O-Ring x Hose Barb 28 48136-07 Clamp, Hose 1/2" 29 421208 Strap, Hydraulic Tank 30 04003-06 Bolt, Carriage 1/4-20 x 1" 31 46978 Oil Reservoir Assembly 32 481164 Cap, Hydraulic Tank 33 48811 Hose, 3/8" ID. Pushlock-16.0" (order by the inch) 34 481507 Insert, Filler Neck 35 04001-01 Bolt, Hex Head 1/4-20 x 3/4" 36 04110-01 U-Nut, 1/4-20 37 422354 Support Bracket, Hydraulic Tank 38 04003-02 Bolt, Carriage 1/4-20 x 3/4" 39 48604-02 Plug, 3/4-16 "O" Ring 40 48350-09 Elbow, 90 Degree 9/16-18 JIC x 9/16 O-Ring 41 48573-02 Elbow, 45 Degree 3/4-16 JIC x 3/4-16 O-Ring 42 48938-02 Bushing, 7/8-14 JIC x 3/4-16 O-Ring 43 48872 Hose Assembly, 1/2" ID 44 04003-12 Bolt, Carriage 5/16-18 x 3/4" 45 04019-03 Nut, Hex Serrated Flange 5/16-18 46 46974 Fuel Tank Assembly (Includes items 48 & 49) 47 422353 Support Bracket, Fuel Tank 48 48309 Bushing 49 481602 Hose Fitting 50 48058 Fuel Hose, 1/4" ID.-10" (order by the inch) 51 48059-01 Clamp, Fuel Hose 52 ** Fuel Filter 53 48568 Valve, Shutoff

Ref. Part No. No. Description

54 48058 Fuel Hose, 1/4" ID.-2" (order by the inch) 55 48573-02 Elbow, 45 Degree-1/2 NPT x 3/4 JIC 56 48471-02 Oil Filter Base 57 48758 Oil Filter 58 481301-03 Elbow, 90 Degree-1/4 NPT x 3/8 Hose 59 04003-04 Bolt, Carriage 5/16-18 x 1" 60 04021-10 Nut, Hex Elastic Stop 5/16-18

61 48030-09 Hose Clamp 62 48350-10 Elbow, 90 degree - 9/16x7/16 o-ring 63 481761-01 Elbow, 90 degree LG - 3/4-16 o-ring

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

** Available through the individual engine manufacturer.

ELECTRICAL SYSTEM (KOHLER)

15 14 6

Section 8

9 10

STT99ESKH

Section 8

Ref. Part No. No. Description

1 48023 Hour Meter 2 48298 Fuse, 20 AMP 3 48017-02 Key & Ring Assembly 4 48017-04 Nut, Hex 5/8-32 5 48017-03 Lockwasher, 5/8" Internal 6 422495 Instrument Panel, Top 7 48798 Key Switch

8 481687 Switch, PTO

9 48788 Relay 10 04031-01 Lockwasher, #10 External Tooth 11 04020-01 Nut, Hex #10-32 12 481755 Ammeter 13 451081 Base, Instrument Panel 14 04030-02 Lockwasher, 1/4" 15 04001-01 Bolt, Hex Head 1/4-20 x 3/4" 16 04110-01 U-Nut, 1/4-20 17 481544 Throttle And Choke Controls 18 04010-01 Screw, Phillips Washer Head #10-32 x 1/2" 19 481638 Switch, Interlock-Seat 20 04001-44 Bolt, Hex Head 1/4-20 x 1/2" 21 48029-18 Cable, Battery - Red 20" 22 04020-02 Nut, Hex 1/4-20 23 48029-07 Cable, Battery - Black 24 48030-09 Clamp, Cable 1/2" ID. 25 48030-10 Clamp, Cable 3/4" ID. 26 04021-01 Nut, Hex Elastic Stop #10-32 27 42413 Bracket, Fuse Holder 28 04010-11 Screw, Phillips Washer Head #10-32 x 1-1/2" 29 04031-03 Lockwasher, 5/16" External Tooth 30 04002-12 Bolt, Hex Head M8-1.25 x 20 31 481623 Electronic Module 32 481751 Wire Harness, STT

ELECTRICAL SYSTEM (KOHLER)

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

ELECTRICAL SYSTEM (KAWASAKI)

Section 8

3 2

15 14 6

9 10

STT99ESKA

Section 8

ELECTRICAL SYSTEM (KAWASAKI)

Ref. Part No. No. Description

1 48023 Hour Meter 2 48298 Fuse, 20 AMP 3 48017-02 Key & Ring Assembly 4 48017-04 Nut, Hex 5/8-32 5 48017-03 Lockwasher, 5/8" Internal 6 422524 Instrument Panel, Top 7 48798 Key Switch

8 481687 Switch, PTO

9 48788 Relay 10 04031-01 Lockwasher, #10 External Tooth 11 04020-01 Nut, Hex #10-32 12 481755 Ammeter 13 45981 Base, Instrument Panel 14 04030-02 Lockwasher, 1/4" 15 04001-01 Bolt, Hex Head 1/4-20 x 3/4" 16 04110-01 U-Nut, 1/4-20 17 481662 Throttle And Choke Controls 18 04010-01 Screw, Phillips Washer Head #10-32 x 1/2" 19 481638 Switch, Interlock-Seat 20 04001-44 Bolt, Hex Head 1/4-20 x 1/2" 21 48029-12 Cable, Battery - Red 36" 22 04020-02 Nut, Hex 1/4-20 23 48029-07 Cable, Battery - Black 24 48030-09 Clamp, Cable 1/2" ID. 25 48030-10 Clamp, Cable 3/4" ID. 26 04021-01 Nut, Hex Elastic Stop #10-32 27 42413 Bracket, Fuse Holder 28 04010-11 Screw, Phillips Washer Head #10-32 x 1-1/2" 29 04031-03 Lockwasher, 5/16" External Tooth 30 04002-12 Bolt, Hex Head M8-1.25 x 20 31 481668 Electronic Module 32 481752 Wire Harness, STT-KA 33 481670 Sending Unit, Water Temp. 34 48030-11 Clamp, Cable 35 481183 Water Temp. Gauge (STT - KA Only)

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

HYDRAULIC PUMP ASSEMBLY

Section 8

Overhaul Seal Kit

20 21

22 1

11 2

390S0167

Section 8

HYDRAULIC PUMP ASSEMBLY

Ref. Part No. No. Description

1 HG 2513017 Housing Kit (Includes Housing, Journal Bearing) 2 HG 2513016 End Cap 3 HG 9004800-2506 Straight Headless Pin 4 HG 9007314-0810 Socket Head Screw 5 HG 2003067 End Cap Gasket 6 HG 2513027 Charge Pump Kit (Includes Charge Cover, Gerotor Assy., O-Ring) 7 HG 50273 Gerotor Assembly 8 HG 9004101-1340 O-Ring

9 HG 2510011 Charge Relief Valve Kit

10 HG 50095 Socket Head Screw 11 HG 2510027 Check Valve Kit (Includes Check Plug, Spring, O-Ring, Orifice Check Valve) 12 HG 2513030 Bypass Valve Kit (Includes Bypass Valve, O-Ring, Back-up Ring) 13 HG 9006110-0120 Backup Ring 14 HG 70079 Cylinder Block Kit 15 HG 2003014 Block Spring 16 HG 2003017 Block Thrust Washer 17 HG 2003044 Roller Thrust Bearing 18 HG 2003087 Swash Plate 19 HG 2003005 Trunnion Arm 20 HG 2000015 Guide Slot 21 HG 2003023 Cradle Bearing 22 HG 9008000-0126 Lip Seal 23 HG 2003020 Pump Shaft 24 HG 2003043 Ball Bearing 25 HG 2003016 Retaining Ring 26 HG 9008000-0128 Lip Seal 27 HG 2003052 Retaining Ring 28 HG 2003018 Spacer 29 HG 2513038 Shaft Kit (Includes Pump Shaft, Ball Bearing, Retaining Ring) 30 HG 2513018 Overhaul Seal Kit (Includes Gasket, Trunnion Seal, Input Shaft Seal, Charge Pump O-Ring)

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

Section 8

REPLACEMENT DECALS AND INFORMATION PLATES

DANGER

SPINNING BLADE

CONTACT CAN INJURE

CAUTION

AVOID INJURY FROM BURNS. SHUT OFF ENGINE BEFORE REMOVING FUEL TANK CAP.

FORWARD

REVERSE

KEEP CLEAR

481272

481568

WARNING

ROTATING BLADES AND BELTS

KEEP HANDS, FEET & CLOTHING CLEAR KEEP ALL GUARDS IN PLACE SHUT OFF ENGINE & DISENGAGE BLADE CLUTCH BEFORE SERVICING CLEAR AREA OF DEBRIS BEFORE MOWING USE CAUTION IN DIRECTING DISCHARGE

48071

KEEP BYSTANDERS, CHILDREN & PETS AWAY READ INSTRUCTION MANUAL BEFORE OPERATING

DO NOT OPERATE WITHOUT DISCHARGE CHUTE, MULCHING

KIT, OR ENTIRE GRASS CATCHER INSTALLED

MANUFACTURED UNDER ONE OR MORE

OF THE FOLLOWING PATENTS:

4,487,006 4,885,903 4,920,733 4,967,543

PATENTS PENDING

4,991,382 4,998,948 4,118,617

481040

48320

HEAVY DUTY

COMMERCIAL

48072

481640

481669

481348

WARNING

INSTALL BELT COVER BEFORE

OPERATING MACHINE

READ OPERATOR'S MANUAL

MOWER DECK

START

CHOKE

PULL OUT TO ENGAGE

PUSH IN TO DISENGAGE

MOWER DECK

PULL OUT TO ENGAGE

PUSH IN TO DISENGAGE

SLOW FAST

OFF

START

CUTTING

HEIGHT

481039

12 13

5.5 5

4.5 4

3.5 3

2.5 2

1.5 1

481543

START / DRIVE

PROCEDURE

ENGAGE PARKING BRAKE DISENGAGE MOWER DECK DRIVE MOVE CONTROL HANDLES TO NEUTRAL LOCK POSITION START ENGINE RELEASE PARKING BRAKE SELECT FORWARD OR REVERSE SPEED WITH HYDRO CONTROL HANDLES

CAUTION

KEEP BYSTANDERS AWAY

CAUTION

BEFORE OPERATING

READ OPERATINGS

MANUAL AND SAFETY

INSTRUCTIONS

481567

48404

390S0172

Section 8

Ref. Part No. No. Description

1 48071 Decal, Danger-Spining Blades 2 481040 Decal, Warning-Rotating Blades 3 48319 Decal, 52

4 481272 Decal, Fuel Tank 5 48656 Decal, Patents 6 481568 Decal, Traction Control

7 48072 Decal, Heavy Duty Commercial

8 48404 Decal, MetalCraft-Made In USA 9 481039 Decal, Belt Cover 10 481640 Decal, Instrument Panel-Upper 11 481669 Decal, Instrument Panel-Upper (Kawasaki) 12 481348 Decal, Instrument Panel-Lower 13 481543 Decal, Cutting Height 14 481567 Decal, Start/Drive Procedure 15 481588 Decal, Seat Support 16 481569 Decal, Turf Tiger 17 481570 Decal, Turf Tiger 18 481664 Decal, Stripes-RH 19 481663 Decal, Stripes-LH 20 481694 Decal, Tiger

REPLA CEMENT DECALS AND INFORMATION PLATES

48320 Decal, 61

* Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

IMPORTANT ADJUSTMENT

PROCEDURES

READ OPERATOR'S MANUAL

FOR MORE DETAILS

Check tire pressure-

(Drive tires - 12 psi,

Caster tires - 25 psi)

NEUTRAL ADJUSTMENT

Loosen jam nuts

Rotate turnbuckle

With an operator in the seat,

engine running, control levers

in neutral and the parking brake

disengaged - adjust control

linkage. Loosen jam nuts. If wheel

rotates forward, adjust turnbuckle

CCW. If wheel rotates rearward, adjust turnbuckle CW. Adjust until drive wheel stops turning. Tighten

jam nuts. Repeat for opposite side.

TRACKING ADJUSTMENT

If the machine pulls to the right,

adjust LH control linkage CCW to

slow left wheel. If the machine

pulls to the left, adjust RH control

linkage CCW to slow right wheel.

Readjust neutral if necessary.

Gearbox lubricant:

SAE 80W90 gear oil

FREE WHEEL OPERATION

To move machine without running

the engine, rotate both dump valve

levers located at the LH side of

the pumps CCW 1/2 turn to

"freewheel" positions. Return

levers to original position to

operate the mower.

HYDRAULIC TANK FLUID LEVEL

Check hydraulic fluid level

daily while fluid is cool.

Fluid level should be 3-1/4"

below top of filler neck.

Fill with SAE 20W50 motor oil only.

IMPORTANT!:

Do not overfill. Room for hot

fluid expansion must be allowed

or resulting expansion may cause

leaks in the system.

481588

481569

481570

481664

481663

1918

390S0173

ELECTRICAL SCHEMATIC (KOHLER)

GROUND

BLK BLK

SOLENOID

Section 8

GRN/

WHT

YEL

WHT

RED/YEL

ENGINE

HARNESS

LH NEUTRAL

RED

BRAKE

INTERLOCK

SWITCH

RED

BLK

BATTERY

SWITCH

RED

PINK

RED/WHT

ELECTRIC

CLUTCH

BRN

BLK

GRN/WHT

RELAY

RED/YEL

RED

ORN

MODULE

PLUG

BLU

GRN/BLK

WHT

BLK BLK

LT/BLU

GRN

RED

RED/WHT

RED

RED/YEL

YEL

STARTER

ENGINE

BLUE

LITE/BLUE

FUSES

20 AMP

RH NEUTRAL

ORN

WHT WHT

GRN

YEL

SWITCH

BRN

RED

INSTRUMENT PANEL

HOURMETER

BLK

RED

REDRED

RED

BLK

YEL/RED

RED

KEY

SWITCH

BLK

AMMETER

SEAT

SWITCH

MOWER

ENGAGE

SWITCH

YEL

STT99SKH

Section 8

ELECTRICAL SCHEMATIC (KAWASAKI)

GROUND

BLK BLK

WHT/

BLK

YEL

RED

RED/YEL

ENGINE

HARNESS

WHT

LH NEUTRAL

RED

BRAKE

INTERLOCK

SWITCH

RED

BLK

BATTERY

SWITCH

RED

FUEL

PUMP

RED

PINK

BLK

RED/WHT

RED

BLK

GRN

BRN

ORN

MODULE

PLUG

BLK

ELECTRIC

CLUTCH

GRN/WHT

RELAY

RED/YEL

GRN/WHT

SOLENOID

RED

GRN

WHT

BLK

LT/BLU

BLU

GRN

RED/YEL

STARTER

ENGINE

RED/WHT

RED/YEL

YEL

FUSES

RH NEUTRAL

SWITCH

ORN

RED RED

WHT/BLK

BLK BLK

BLK RED

RED

LT/BLU

GRN

RED/YEL

YEL

20 AMP

BRN

RED

INSTRUMENT PANEL

HOURMETER

RED

REDRED

MOWER

ENGAGE

BLU

SWITCH

RED

KEY

SWITCH

BLK

YEL/RED

AMMETER

SEAT

SWITCH

WATER

TEMP

YEL

STT99SKA

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. 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, hoses and tires are warranted for 90 days. * Batteries are covered for 90 days. * Frame, deck, and structural components including oil reservoir, fittings, and oil cooler

are warranted for 1 year. * Engines and electric starters are covered by the manufacturers warranty period. * Drive system components are warranted for 1 year by the component manufacturer, in

conjunction with Scag Power Equipment. (Excluding fittings, hoses, cooling system,

oil reservoir, drive belts). * Electric clutches have a Limited Warranty for 2 year (Parts and labor 1st year; Parts only

2nd year). * Cutter Spindle Assemblies 46631 have a Limited Warranty for three years (Parts and

labor 1st year; Parts only 2nd and 3rd year).

Any Scag product used for rental purposes is covered by a 90 day warranty.

The Scag mower, including any defective part must be returned to an Authorized Scag Service Dealer within the warranty period. The expense of delivering the mower to the dealer for warranty work and the expense of returning it to the owner after repair will be paid for by the owner. Scags responsibility is limited to making the required repairs and no claim of breach of warranty shall be cause for cancellation or rescission of the contract of sale of any Scag mower.

This warranty does not cover any mower that has been subject to misuse, neglect, negligence, 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 one (1) year warranty period or ninety (90) days for mowers used for rental purpose. Accordingly, any such implied warranties including merchantability, fitness for a particular purpose, or otherwise, are disclaimed in their entirety after the expiration of the appropriate one 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.

PART NO. 03059

PRINTED 8/98

PRINTED IN USA

Scag STT User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual