Scag STT-31BSG User Manual 2

MODEL STT-31BSG

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 03093

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 wires and ignition key. * If a mechanism becomes clogged, stop the engine before cleaning. * Keep hands, feet and clothing away from power-driven parts. * Read this manual completely as well as other manuals that came with your mower. * Keep others off the tractor (only one person at a time)

REMEMBER - YOUR MOWER IS ONLY AS SAFE AS THE OPERATOR!

Hazard control and accident prevention are dependent upon the awareness, concern, prudence, and proper training of the personnel involved in the operation, transport, maintenance, and storage of the equipment.

This manual covers the operating instructions

and illustrated parts list for:

ST T-31BSG with a serial number of 6830001 to 6839999 SMST-61A with a serial number of 6850001 to 6859999 SMST-72A with a serial number of 6860001 to 6869999

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

TABLE OF CONTENTS

SUBJECT PAGE Section 1 - General Information

1.1 Introduction .............................................................................................................................1

1.2 Directional Reference .............................................................................................................1

1.3 Servicing the Engine and Drive Train Components ................................................................1

Section 2 - Safety Information

Symbols ............................................................................................................................... 2-3

2.1 Introduction .............................................................................................................................4

2.2 Signal Words ...........................................................................................................................4

2.3 Before Operation Considerations ...........................................................................................4

2.4 Operation Considerations ........................................................................................................5

2.5 Maintenance Considerations ...................................................................................................6

2.6 Safety and Instructional Decals ..............................................................................................7

Section 3 - Specifications ....................................................................................................... 8-9

Section 4 - Operating Instructions

4.1 Controls and Instrument Identification ..................................................................................10

4.2 Safety Interlock System........................................................................................................ 11

4.3 Initial Run-In Procedures ......................................................................................................12

4.4 Starting the Engine ................................................................................................................ 12

4.5 Ground Travel and Steering ..................................................................................................12

4.6 Engaging the Deck Drive ..................................................................................................... 13

4.7 Hillside Operation .................................................................................................................14

4-8 Parking the Mower ............................................................................................................... 14

4.9 After Operation .................................................................................................................... 14

4.10 Removing Clogged Material ................................................................................................. 15

4.11 Moving Mower with Engine Stopped ................................................................................... 15

4.12 Recommendations for Mowing .............................................................................................15

4.13 Adjusting Cutting Height ....................................................................................................... 16

Section 5 - Troubleshooting Cutting Conditions.............................................................. 17-19

TABLE OF CONTENTS (CONT'D)

SUBJECT P AGE

Section 6 - Adjustments

6.1 Parking Brake Adjustment ....................................................................................................20

6.2 Travel Adjustments ............................................................................................................... 20

6.3 Throttle Control and Choke Adjustments .............................................................................. 22

6.4 Belt Adjustment .................................................................................................................... 22

6.5 Belt Alignment ...................................................................................................................... 22

6.6 Cutter Deck Adjustments ..................................................................................................... 23

Section 7 - Maintenance

7.1 Maintenance Chart ............................................................................................................... 25

7.2 Lubrication Fitting Points ...................................................................................................... 26

7.3 Hydraulic System ..................................................................................................................28

7.4 Engine Oil ............................................................................................................................. 29

7.5 Engine Fuel System .............................................................................................................. 30

7.6 Engine Air Cleaner................................................................................................................ 30

7.7 Battery .................................................................................................................................. 30

7.8 Drive Belts ............................................................................................................................32

7.9 Cutter Blades ........................................................................................................................32

7.10 Tires ...................................................................................................................................... 33

7.11 Cutter Deck Gearbox ........................................................................................................... 34

7.12 Cooling System ..................................................................................................................... 34

7.13 Body, Deck, Hopper and Upholstery .................................................................................... 35

Section 8 - Illustrated Parts List

SMST 61"Adv., 72" Adv. Cutter Decks ................................................................................... 36-37

Cutter Deck Controls ................................................................................................................ 38-39

Sheet Metal Components.......................................................................................................... 40-41

Deck Drive Components .......................................................................................................... 42-43

Radiator, Coolers & Engine Brackets.................................................................................44-45

Brake & Steering Components..... .....................................................................................46-47

Fuel & Hydraulic System ......................................................................................................... 48-49

Electrical System ...................................................................................................................... 50-51

Hydraulic Pump Assembly - BDP-21L .................................................................................... 52-53

Wire Harness, STT-31BSG ............................................................................................................ 54

Replacement Decals ................................................................................................................. 55-56

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.

ISO Symbols

CE Mark

SYMBOL DESCRIPTION

Parking Brake

On/Start

SYMBOL DESCRIPTION

TransmissionChoke

Spinning Blade

48071S

Spring Tension on Idler

Off/Stop

Oil

WARNING

Falling Hazard

FALLING HAZARD

USE ONLY SCAG APPROVED

RIDING ATTACHMENTS

SEE OPERATOR'S MANUAL

481109

SYMBOL DESCRIPTION SYMBOL DESCRIPTION

481039S

Fast

Continuously Variable - Linear

Pinch Point

Slow

Cutting Element - Basic symbol

Cutting Element - Engage

Hourmeter/Elapsed Operating Hours

Thown Object Hazard

Keep Bystanders Away

Cutting Element - Disengage

Read Operator's Manual

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. and thoroughly familiar with all of the controls before operating the mower.

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

Make sure every operator is properly trained

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 OPERATION 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:

The signal word is a distinctive word found on the safety decals on the machine and throughout this manual that alerts the viewer to the existence and relative degree of the hazard.

4. DO NOT carry passengers.

Section 2

2.3 BEFORE OPERATION 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 hearing 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 CONSIDERATIONS

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. 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.

Section 2

2.4 OPERATION CONSIDERATIONS (CONT'D)

3. To prevent tipping or loss of control, start and stop smoothly, 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 the cutter deck before backing up. Do not mow in reverse unless absolutely necessary and then only after observation of the entire area behind the mower.

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

10. Disengage power to the 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.

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. 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

WARNING

INSTALL BELT COVER BEFORE

OPERATING MACHINE

READ OPERATOR'S MANUAL

FORWARD

481039

REVERSE

WARNING

DO NOT OPERATE WITHOUT DISCHARGE CHUTE, MULCHING

KIT, OR ENTIRE GRASS CATCHER INSTALLED

482165

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

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.

390S0150A

481588

Section 3

SPECIFICATIONS

SCAG “SABRE TOOTH TIGER” ZERO-TURN RIDER

MODEL: STT– 31BSG

ENGINE

General Type: Heavy duty industrial/commercial Brand: Briggs Daihatsu Vanguard Liquid Cooled 31 HP Model: DM950G Horsepower: 31 HP @ 3600 RPM Type: water cooled 4 cycle, overhead valve, 3 cylinder, gas engine Displacement: 952 cc Cylinders: 3 inline sleeves Governor: High-speed flyweight governor, runs faster than engine crankshaft, provides precision

speed governing and a steady low idle, 3600 rpm (±100 rpm), idle set at 1500 rpm Air Intake Group: Canister type air filter system. Exhaust Group: Single exhaust canister muffler Fuel Pump Group: Electric fuel pump with mechanical choke and fuel shutdown solenoid Oil Pump Group: Positive displacement Gerotor oil pump with remote oil filter, capacity 3.2 U.S. quarts

(3.0 ltrs) with oil filter Valve Group: Overhead Electrical/Charging System: 12 volt battery with alternator, solid state ignition with key start, 40 amp regulated

charging system using a microprocessor and one ignition coil for each cylinder, solenoid

shift type starter

ENGINE DECK

Fuel Tank: 10 gallon (38.0 litres) seamless polyethylene tank with fuel gauge gas cap Drive Wheels/Tires: 24x12-12 four-ply pneumatic tubeless, radius edge, offset rims to improve operators view Parking Brake: Lever operated interlocked parking brake prevents operation with parking brake engaged Frame: Compact tractor frame with structural steel tubing construction

DRIVE SYSTEM

Type: Hydro drive with two variable displacement pumps and two cast iron motors for

independent control of each drive wheel Hydro Pumps: Two Hydro-Gear Model BDP 21L pumps with dump valves for movement without running

engine Drive Wheel Motors: Two 23 cubic inch cast-iron high torque wheel motors Transmission Belt Idler: Self-adjusting, self-tightening, sealed bearings Hydro Fluid Cooling Group: 6 qt. capacity nylon fluid reservoir, uses SAE 20W50 fluid and 10 micron filter Steering/Travel Control: Twin lever fingertip steering control with gas shock dampeners for smooth, responsive

control to each wheel Axles: 1-1/4" heavy-duty, tapered motor shafts Wire Harness: 14 gauge wire Safety Group: Seat actuated engine kill, neutral interlock, mower engagement (BBC) switch, parking

brake Instrument Panel: Voltmeter, water temperature gauge, oil pressure gauge, key switch, throttle, fuses, manual

choke, BBC switch (hourmeter located at rear of machine) Forward Ground Speed Range: 0 to 10.5 mph Reverse Ground Speed Range: 0 to 5.0 mph

Date of Issue: November, 2000 Specifications Subject To Change Without Notice

-NOTE-

The machine will travel at 10.5 mph for transport purposes. For best cutting performance the forward travel speed should be adjusted depending upon the cutting conditions.

Section 3

SPECIFICATIONS (CON'T)

SCAG “SABRE TOOTH TIGER” ZERO-TURN RIDER

MODEL: STT– 31BSG

CUTTER DECK

Type: SMST-72A ("Advantage") & SMST-61A ("Advantage") - Floating, adjustable anti-

scalping, hybrid design combines out-front and belly-mount designs. "Advantage" special extended front edge allows Bahia or other tough grasses to enter the deck

standing upright for a clean cutting. Construction: 10-gauge steel top reinforced with 7 gauge support plate, deck skirt is 7 gauge steel True Cutting Width: 72" cutter deck = 71.5 inches (181.6 cm); 61" cutter deck = 61.0" (155.0cm) Cutting Height Adjustment: Foot-operated pedal adjustment from operators seat,

1" to 6" in 1/2" increments Cutter Blades: 72" = Three (3) 24" blades; 61" = Three (3) 21" blades Cutter Deck Drive: Drive shaft to 90 degree gear box Blade Engagement: Electric blade engagement clutch with control panel knob Discharge Opening: Extra wide 11.5" discharge opening with spring loaded discharge chute Caster Wheels: 13 x 5 x 6 caster wheels with tapered roller bearing pivots 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 Anti-Scalp Rollers: Two front, two rear 4-1/2" adjustable, two rear 12" fixed

ADDITIONAL SPECIFICATIONS

Seat: Thick padded seat cushions with special springs. Padded arm rests, lever adjustment

forward and back.

APPROXIMATE DIMENSIONS

72" 61"

Length: 92.0" 88.0" Tracking Width: 56.0 56.0" Width: 83.5 72.0" Width (with discharge chute up): 73.0 61.5" Height: 47.0 47.0" Turning Radius: zero radius turning zero radious turning Weight: 1550 lbs. 1550 lbs.

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

Date of Issue: November, 2000 Specifications Subject To Change Without Notice

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.

WA TER TEMPERA TURE

MOWER DECK SWITCH

OIL PRESSURE

IGNITION SWITCH

VOLTMETER

LEFT STEERING

PARKING BRAKE

START

OFF

CONTROL

ENGINE THROTTLE

MOWER DECK

PULL OUT TO ENGAGE

CONTROL

PUSH IN TO DISENGAGE

ENGINE CHOKE

CONTROL

481669

FUSES

DUMP VALVE

DECK LIFT

RIGHT STEERING

CONTROL

CUTTING HEIGHT

ADJUSTMENT

DECK RELEASE

irjf;o3rf

aljalefja

sorgf

aljalefja

afkrjf ;w

CHOKE

OFF

481348

FUEL GAUGE

HOURMETER

Figure 4-1 Controls and Instruments

BSG99CONTROLS

Section 4

5. Voltmeter (Figure 4-1). Indicates the condition of the charging system. When the engine is running, in normal operating conditions, the needle should be in the 12 to 14 volt range.

6. Oil Pressure (Figure 4-1). Indicates engine oil pressure. Reference the engine operator's manual for further information.

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

8. Fuse Holders (Figure 4-1). There are two 20amp fuses and one 40-amp fuse that protect the mowers electrical system. To replace fuses, pull fuse out of the socket and install a new fuse.

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

DUMP VALVE

CONTROL

390S0141BSG

Figure 4-2 Dump V alve Control

15 . Cutting Height Adjustment (Figure 4-1). Used

to set the cutter deck at the desired cutting height.

16. 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.

10 . Right Steering Control (Figure 4-1). Used to

control the mower's right wheel when traveling forward or reverse.

11. 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.

12 . Fuel Tank Gauge (Figure 4-1). Indicates the

amount of fuel in the fuel tank.

13. Dump Valve Control Levers (Figure 4-2).

Located on the hydraulic pumps, used to freewheel 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).

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

17 . Temperature Gauge (Figure 4-1). Indicates the

operating temperature of the engine.

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 steering control levers not in the neutral position and/or the cutter blades engaged and the parking brake not engaged.

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.

Section 4

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.

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 STARTING THE ENGINE

7. 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.

8. Allow engine to warm before operating the mower.

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.

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.

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. Place the PTO switch in the disengaged position.

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

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

-IMPORTANT-

Start practicing with a slow engine speed and slow forward travel.

Learn to feather the steering controls to obtain a smooth operating action.

Practice operating the mower until you are comfortable with the controls before proceeding to mow.

Forward Travel

To travel forward with the mower, disengage the parking brake 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.

Section 4

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.

-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

To steer left while traveling in reverse, allow the left steering control lever to move forward. The further the control is allowed to move forward, the quicker the mower will turn left.

To steer right while traveling in reverse, allow the right steering control lever to move forward. The further the control is allowed to move forward, the quicker the mower will turn right.

To stop the reverse travel, allow the steering control levers to return to the neutral position. If the mower is to be parked, engage the parking brake.

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.

CAUTION:

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

CAUTION:

Before backing up, observe the rear for persons and obstructions. Clear the area before backing up. Possible injury or property damage could occur.

To travel in reverse, pull both handles back. Keep the travel speed low while traveling in reverse.

-NOTE-

The mower may not travel straight in reverse. Slight adjustments may need to be made using the steering controls.

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

PULL UP TO ENGAGE

PUSH DOWN TO DISENGAGE

STT99CES

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.

Section 4

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.

4.7 HILLSIDE OPERATION

WARNING:

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.

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.

-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.

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

2. To prevent tipping or loss of control, start and stop smoothly, avoid unnecessary turns and travel at reduced speed.

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

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

Section 4

4.10 REMOVING CLOGGED MA TERIAL

ROTATING BLADES

NEVER PUT YOUR HANDS INTO THE DISCHARGE CHUTE FOR ANY REASON! Shut off the engine and remove the key and only then use a stick or similar object to remove material if clogging has occurred.

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.

4.11 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.

DUMP VALVE

CONTROL

4.12 RECOMMENDA TIONS 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.

390S0141BSG

Figure 4-2 Dump V alve Control

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:

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

2. 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).

LANYARD PIN

4.5

5.5

HEIGHT

CUTTING

HEIGHT ADJUSTMENT PEDAL

Figure 4-6 Adjusting Cutting Height

481543

1.5

2.5

3.5

390S0140

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 PARKING 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 TRAVEL 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 21).

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 22).

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

2KBSGRHCRA

Figure 6-3. RH Steering Control Rod Adjustment

ADJUST HERE

2KBSGLHCRA

Figure 6-4. LH Steering Control Rod Adjustment

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 21.

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 21.

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:

3. Tighten the elastic stop 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. Use the following procedures, however, measure from the top of the cutter deck rather than the bottom edge. Lay a straight edged object on the top of the Advantage cutter deck, protruding towards the front of the machine, when measuring the front height.

Check the distance from the top 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 top 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. On the front LH side of the cutter deck locate the cutter deck adjusting bolt. (See Figure 6.5)

JAM NUT

ADJUST HERE

CUTTER DECK ADJUSTING BOLT

390S0174

Figure 6-5. Cutter Deck Adjustment

2. Loosen the elastic stop 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.

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.

-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 has 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 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 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 See paragraph 7.12

7.2 LUBRICATION

GREASE FITTING LUBRICATION CHART (SEE FIGURE 7-1)

LUBRICATION NO. OF

LOCA TION 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 40 Hours/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 40 Hours/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 )

4 3 9

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 around the cap area).

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 changed 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

ENGINE OIL DIPSTICK

ENGINE OIL FILTER

STT-BSG99EOF

ENGINE OIL DRAIN PLUG

7.4 ENGINE OIL

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.

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.

Figure 7-4 Engine Dipstick, Filter, Oil Drain

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 (See Figure 7-4).

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 (See Figure 7-4).

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 (See Figure 7-4).

Section 7

7.5 ENGINE FUEL SYSTEM

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

FUEL FILTER

HOSE

CLAMPS

STT99FF

Figure 7-5 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. To make it convenient for you we have installed an "Air Cleaner Indicator" which is located just behind the air filter. The indicator window will turn red when it is time to service the air

Do not service the filter unless this indicator is red.

filter.

-NOTE-

In extremely dusty conditions it may be

necessary to check the indicator daily to

prevent engine damage.

1. Snap open the two clips securing the air cleaner cover to the air cleaner box. Remove the air cleaner cover, clean the duck bill vent of any dust and set the cover aside.

A. Filling the Fuel T ank

Fill the fuel tank at the beginning 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

-NOTE-

The fuel filter is located below the hydraulic tank. Figure 7-5 is for illustration purposes only.

The in-line fuel filter (Figure 7-5) should be replaced after every 500 hours of operation or annually, whichever occurs first.

1. Close the shut-off valve. Remove the two clamps securing the fuel filter to the fuel hose. Remove the fuel filter.

2. Remove the air cleaner element and inspect.

3. Clean or replace the element as recommended by the engine manufacturer.

4. Replace the air filter cover and be sure to snap closed the two clips.

5. Reset the air cleaner indicator by pushing the button on the end of the indicator. The indicator window should return to clear.

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.

Section 7

WARNING:

Lead-acid batteries produce flammable and explosive gases. T o avoid personal injury when checking, testing or charging batteries, DO NOT use smoking materials near batteries. Keep arcs, sparks and flames away from batteries. Provide proper ventilation and wear safety glasses.

WARNING:

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:

Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.

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.

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.

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.

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.

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.

7.8 DRIVE BELTS

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. See Figure 7-9, Page 33.

1. Sharpen the cutting edge at the same bevel as the original. See Figure 7-9, Page 33. 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 be raised 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 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 manuafacturer's instructions for the proper coolant mixture ratio.

Fill to Bottom of Filler Neck

030467-13

Figure 7-13 Coolant Level in Radiator

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.

61A, 72A CUTTER DECKS

13 12

24 58

50 56

14 29 20

29 21

58 49

26 12 47

44 61 63

51 23

621265

56 33

28 31

23 68

2852

22 22A

STT-BSG-2001CD

61A, 72A CUTTER DECKS

Ref. Part No. No. Description

1 461382 Cutter Deck, 61” Advantage (Includes Decals) 1 461384 Cutter Deck, 72” Advantage (Includes Decals) 2 04003-04 Bolt, Carriage 5/16-18 x 1" 3 04019-04 Nut, Hex Serrated Flange 3/8-16 4 481625-01 Wing nut, 3/8-16 5 481632 Anti-Scalp Wheel 6 04003-26 Bolt, Carriage 3/8-16 x 4" 7 422478 Anti-Scalp Wheel Bracket 8 04017-27 Bolt, Hex Serrated Flange 3/8-16 x 1"

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

10 04021-05 Locknut, 3/8-16 Center Lock 11 461296 Discharge Chute, 61” & 72” Adv. 12 04001-12 Bolt, Hex Head 5/16-18 x 1.75" (Front)

04001.11 Bolt, Hex Head 5/16-18 x 1.50” (Rear) 13 04021-10 Nut, Hex Elastic Stop 5/16-18 14 04020-09 Nut, 5/8-11 UNC 15 45332 Push Arm Shaft 16 04001-41 Bolt, Hex Head 5/8-11 x 9.50" 17 04003-12 Bolt, Carriage 5/16-18 x .75" 18 04001 -154 Bolt, Hex Head 5/16-18 x 4.75" 19 04063-08 Key, 1/4 x 1/4 x 2" 20 04063-01 Key, 1/4 x 1/4 x 1.25" 21 04043-04 Flatwasher,3/8-.39 x .938 x .105 HD 22 04001-11 Bolt, Hex Head 5/16-18 x 1.50" 22A 04001-12 Bolt, Hex Head 5/16-18 x 1.75” 23 04021-10 Nut, Hex Serrated Flange 5/16-18 24 04001-01 Bolt, Hex Head 1/2-20 x .75" 25 48100-15 Bushing, .376 I.D. Oilite 26 04030-03 Lockwasher, 5/16" 27 04040-15 Flatwasher, 5/16" (.375 x .875 x .083) 28 04041-07 Flatwasher, 3/8" (.391 x .938 x .105) 29 04021-09 Nut, Hex Elastic Stop 3/8-16 30 04001-62 Bolt, Hex Head 3/8-16 x 3.25" 31 04001-31 Bolt, Hex Head 3/8-16 x 2.50" 32 43503 Pivot, Idler - Short 33 04001 -136 Bolt, Hex Head 3/8-16 x 1.50" Grade 8 34 46631 Spindle Assembly 35 43298 Spindle Shaft 36 481024 Seal, Top 37 481022 Bearing Assembly 38 43294 Spindle Housing 39 43312 Spacer, Outside

Ref. Part No. No. Description

40 43296 Spacer, Inside 41 481025 Seal, Bottom 42 43297 Spindle Bushing, Bottom 43 481035 Nut, Special 1 - 1/16-18 44 48114-04 Grease Fitting 45 48677 Relief Fitting, Tapered Spindle 46 482245 Spring, Discharge Chute 47 48038 Guide, Roller 48 482001 Cutter Blade, 21.0” 61” 48 482002 Cutter Blade, 24.5" 72” 49 481516 Gearbox Assembly, Deck Drive 50 481558 Belt, Cutter Deck Drive, 61” 50 481980 Belt, Cutter Deck Drive, 72” 51 45944 Roller Shaft 52 48926 Tapered Hub, 1-1/8" Bore 53 48141 Tapered Hub, 1" Bore 54 461174 Idler Arm, Cutter Deck 55 48224 Bearings, Ball 56 48269 Pulley, Idler 57 422713 Base, Idler Pivot 58 48753 Pulley, 6.35 O.D. - 61”

48967 Pulley, 6.95 O.D. - 72” 59 422426 Mounting Plate, Gearbox 60 422413 Belt Cover, LH - 61”

422677 Belt Cover, LH - 72”

422413 Belt Cover, RH - 61”

422708 Belt Cover, RH - 72” 61 461036 Pusharm (includes items 44, 62, 63 & 64) 62 48100-06 Spacer 63 04020-16 Nut, Hex Head 5/8-18 UNF 64 48763 Rod End, 5/8" Male RH Thread 65 04001-79 Bolt, Hex Head 5/8-11 x 4-1/2" 66 481597 Spring, Cutter Deck 67 48753 Pulley, 6.35 O.D. - 61”

48924 Pulley, 5.75 O.D. - 72” 68 04110-03 U-Nut, 3/8-16 69 04021-13 Nut, Hex Elastic Stop 5/8-11 70 422601 Discharge Baffle 61”

422602 Discharge Baffle 72” 71 482295 Guide Roller 72 43309 Spacer, Spindle

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

CUTTER DECK CONTROLS

19 25

CUTTER DECK

2001 STTBSG-CDC

CUTTER DECK CONTROLS

Ref. Part No. No. Description

1 481428 Grip, Deck Latch 2 46975 Deck Latch (Includes items 20& 21) 3 04009-02 Bolt, Shoulder 1/2 x 3/4" 4 04012-09 Set Screw, 5/16-18 x 1/2" Sq. Head 5 422346 Lockplate, Decklift 6 481766 Rod End, Female - 1/2-20 LH 7 04050-10 Ring, Retaining 1/2" External "E" 8 43487 Pin, Decklift

9 481764 Link, Decklift

10 04020-28 Nut, Jam 1/2-20 LH 11 04020-27 Nut, Jam 1/2-20 RH 12 04001-74 Bolt, Hex Head 1/2-13 x 3" 13 481765 Rod End, Female - 1/2-20 RH 14 43391 Spacer, Decklift Pedal 15 45905 Bellcrank Weldment, RH Rear 16 48100-08 Bushing, 1.003 ID. 17 04001-91 Bolt, Hex Head 7/16-14 x 2-1/2" 18 04021-11 Nut, Hex Elastic Stop 7/16-14 19 45945 Footplate Weldment, Decklift 20 04003-04 Bolt, Carriage 5/16-18 x 1" 21 422451 Footplate, Height Adjustment 22 04063-01 Key, 1/4 x 1/4 x 1-1/4" 23 04063-23 Key, 1/4 x 1/4 x 3-1/4" 24 04019-04 Nut, 3/8-16 Hex, Serrated Flange 25 04041-14 Flatwasher, 1" (1.062 x 1.50 x .048) 26 04050-08 Ring, Retaining 1" External "E" 27 45906 Bellcrank Weldment, LH Front 28 48114-04 Grease Fitting 29 04020-09 Nut, Hex 5/8-11 30 43473 Swivel Joint, RH 31 04040-09 Flatwasher, 5/8” (.656 x 1.312 x .095) 32 04004-33 Stud, 5/8-11 x 22.0" 33 481549 Spring, Deck Lift 34 422439 Flatwasher, Spring Stop 35 48540 Chain 36 04001-20 Bolt, Hex Head 3/8-16 x 1-1/2" 37 04040-09 Flatwasher, 5/8" (.656 x 1.312 x .095) 38 04020-09 Nut, Hex 5/8-11 39 04061-07 Pin, Cotter 3/16 x 1.0” 40 04041-07 Flatwasher, 3/8” 41 04021-09 Nut, 3/8-16 Elastic Stop 42 45904 Bellcrank Weldment, LH Rear 43 43472 Swivel Joint, LH 44 04067-05 Ring Pin, 1/2 x 3.30" 45 481547 Lanyard, Deck Height Pin 46 422403 Bracket, Cutting Height Adjustment 47 422381 Guide, Short 48 422346 Lockplate, Decklift 49 04014-03 Screw, Cap 5/16-18 x 3" FHHS 50 422380 Guide, Long 51 45907 Bellcrank Weldment, RH Front 52 04021-05 Lock Nut, Hex Head 3/8-16

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

SHEET METAL COMPONENTS

"A"

TO "A"

34 35

38 49

2001 STTBSG-SMC

SHEET METAL COMPONENTS

Ref. Part No. No. Description

1 422567 Footplate 2 451079 Fender, RH 3 451078 Fender, LH 4 422683 Box, Battery 5 45925 Plate, Lower Seat 6 481825 Footrest 7 481780 Insulation, Battery Cover 8 422682 Cover, Battery 9 48566 Cable, Seat Stop 10 482147 Seat

482344 Armrest, Both Sides 482343 Cover, Armrest 482342 Cover, Lower Cushion

482341 Cover, Backrest 11 461232 Track Set, Seat Adjuster 12 43462 Pin, Spring 13 481389 Spring, Seat 14 04060-01 Spring Pin, .156 x .75” 15 04019-03 Nut, Serr. Flg. 5/16-18 16 43336 Spacer 17 45926 Plate, Upper Seat 18 422699 Bracket, Battery 19 04003-12 Bolt, Carr. 5/16 -18 x .75” 20 04019-03 Nut, Serr. Flg. 5/16-18 21 04001-59 Bolt, Hex Head 1/4-20 x 1.25” 22 04019-02 Nut, 1/4-20 23 43077 Spacer 24 43535 Spacer 25 04001-11 Bolt, Hex Head 5/16-18 x 1.5” 26 04001-39 Bolt, Hex Head 5/16-18 x 2.25” 27 04030-03 Lock Washer 5/16” 28 04040-15 Flat Washer 5/16 .375 x .875 x .083 29 04001-71 Bolt, Hex Head 1/2-13 x 1.5” 30 04001-19 Bolt, Hex Head 3/8-16 x 1.0” 31 04021-09 Nut, Elastic Stop 3/8-16 32 04017-27 Capscrew, Serr. Flng. 3/8-16 x 1.00” 33 04019-04 Nut, Serr. Flng. 3/8-16 34 481559 Cap, Grease 35 04021-20 Nut, Hex Elastic Stop 1.0-14 36 481657 Bearing w/ Race

37 4 82028-0 1 Plug, 1/4-28 THD Form

38 04001-1 25 Bolt, Hex Head 5/8-11 x 4.00”

Ref. Part No. No. Description

39 04001-134 Bolt, Hex Head 1/2-13 x 7.5” 40 43430 Spacer 41 04021-07 Nut, Hex Head Elastic Stop 1/2-13 42 45934 Yoke Weldment, Caster 43 04021-13 Nut, Elastic Stop 5/8-11 44 481613 Tire 45 481770 Bearing, Oilite 46 481846 Bearing, Roller 47 481612 Rim Assembly (Incl. item # 48) 48 48114-06 Fitting, Grease 49 481551 Wheel Assembly (Incl. # 44 through 48) 50 45934 Extension, Caster Wheel LH, 61”

45938 Extension, Caster Wheel LH, 72” 45937 Extension, Caster Wheel LH, 61” Adv. 45939 Extension, Caster Wheel LH, 72” Adv. 45989 Extension, Caster Wheel RH, 61” 451076 Extension, Caster Wheel RH, 72 ” 45937 Extension, Caster Wheel RH, 61” Adv. 451128 Extension, Caster Wheel RH, 72” Adv.

51 46986 Caster Wheel Assembly LH, 61” Adv.

(Incl. # 34 through #37, & #39 thorugh 50 )

46988 Caster Wheel Assembly LH , 72” Adv.

(Incl. # 34 through #37, & #39 thorugh 50 )

46986 Caster Wheel Assembly RH, 61” Adv.

(Incl.# 34 through #37, & #39 thorugh 50 )

461189 Caster Wheel Assembly RH, 72” Adv.

(Incl.# 34 through #37, & #39 thorugh 50 ) 52 04001-63 Bolt, Hex Head 5/16-18 x 3.50” 53 04021-10 Nut, Hex Head Elastic Stop 5/16-18 54 04003-01 Bolt, Carriage 1/4-20 x 6.00” 55 04029-01 Wing Nut 1/4-20 x .75”

56 41020 Weight (61” cutter deck only) 57 04001-12 Bolt, Hex Head 5/16-18 x 1.75” 58 43277 Spacer 59 04001-145 Bolt, Hex Head 1/2-13 x 3.5” 60 04040-13 Flat Washer 1/2-.562 x .1.375 x .109

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

DECK DRIVE COMPONENTS

REAR

ENGINE

FLYWHEEL

To B

25 24

74 69

To A

77 76

99STTBSG-DDC

DECK DRIVE COMPONENTS

Ref. Part No. No. Description

1 422845 Belt Guard, Rear 2 481531 Hinge, Rear Belt Guard 3 481309 Latch, Hood 4 04003-07 Carr. Bolt 1/4-20 x .5” 5 04019-02 Nut, Serr. Flg. 1/4-20 6 04010-01 Screw, #10-32 x .5, Phillips Head 7 04031-01 Lock Washer, #10 8 04020-01 Nut, #10-32 9 451080 Weldment, Pump Mounting 10 43506 Spacer, Engine 11 43507 Stud, Anti-Rotation 12 451084 Rod, Anti-Rotation

04020-25 Nut, 3/8-24 Right Hand Jam

48464 Rod End, 3/8-24 Right Hand 13 48028-05 Tie, Cable 14 04069-01 Pin, Rue 15 04001-20 Bolt, Hex Head 3/8-16 x 1.50” 16 46977 Spindle Assembly, Deck Drive 17 461399 Clutch, Electric PTO 18 481398 Pulley, 6.35” dia. Tapered Bore 19 481536 Hub, Tapered 1” dia. 20 04063-06 Key, 1/4 x 1/4 x 1.5” 21 04001-10 Bolt, Hex Head 5/16-18 x 1.25” 22 481883 Pulley, 6.25” OD, Tapered 23 481788 Pulley, 5.45” OD 24 04012-04 Set Screw, 5/16-18 x .375” 25 481884 Hub, Tapered 17mm Bore 26 04001-01 Bolt, Hex Head 1/4-20 x .75” 27 04063-27 Key, 5mm x 5mm x 30mm 28 481461 Belt, Pump Drive 29 481460 Belt, Deck Drive 30 04063-11 Key, 1/4 x 1/4 x 2.5” 31 04001-101 Bolt, Hex Head 7/16-20 x 2.5” 32 04030-05 Lock Washer 7/16” 33 04041-28 Flat Washer 7/16 x .469 x 1.75 x .25” 34 04001-109 Bolt, Hex Head 1/4-20 x 1.375” 35 04021-09 Nut, Elastic Stop 3/8-16 36 04041-07 Flat Washer 3/8, .391 x .938 x .105” 37 04063-20 Key, 1/4 x 1/4 x 1.00” 38 461079 Idler Arm 39 04001-46 Bolt, Hex Head 3/8-16 x 2.25” 40 04019-04 Nut, Serr. Flg. 3/8-16 41 48181 Pulley, PTO Idler 42 04001-136 Bolt, Hex Head 3/8-16 x 1.5” Grade 8 43 04043-04 Flat Washer 3/8” Grade 8 44 481522 Spring 45 48224 Bearing 46 43503 Pivot, Idler - Short 47 04001-31 Bolt, Hex Head 3/8-16 x 2.5” 48 422714 Base, Idler Pivot 49 04001-09 Bolt, Hex Head 5/16-18 x 1.00” 50 481756 Idler Arm

Ref. Part No. No. Description

51 48198 Pulley, Pump Idler 52 43277 Spacer 53 04001-1 38 Bolt, Hex Head 3/8-16 x 3.75” Grade 8 54 04030-04 Lock Washer 3/8” .638 x .380 x .094” 55 04020-04 Nut 3/8-16 56 04021-05 Nut, Elastic 3/8-16 57 43504 Pivot, Idler - Long 58 04001-54 Bolt, Hex Head 3/8-16 x 3.00” 59 04021-10 Nut, Elastic 5/16-18 60 04001-49 Bolt, Hex Head 5/16-18 x 3.00” 61 04030-03 Lock Washer 5/16” 62 422684 Brace, Engine Mounting Plate 63 481284 Bumper, Rubber 64 04019-03 Nut, Serr. Flg. 5/16-18 65 04001-19 Bolt, Hex Head 3/8-16 x 1.00” 66 48030-09 Clamp, Wire 67 04003-12 Bolt, Carr. 5/16-18 x .75” 68 481785 Driveshaft 69 43296 Spacer, Inside 70 43297 Bushing 71 481025 Seal, 2.00 OD x 1.625 Bore 72 481035 Nut, 1.06-18 73 481022 Roller Bearing Assembly 74 43312 Spacer, Outside 75 48114-04 Grease Fitting 1/4-28 Self Tapping 76 48677 Relief Fitting 77 43294 Spindle Housing 78 481024 Seal, 2.00 OD x 1.5 Bore 79 43534 Shaft, Spindle

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

RADIATOR, COOLERS & ENGINE BRACKETS

ATTACHES

FRAME

TO "A"

RADIATOR, COOLERS & ENGINE BRACKETS

Ref. Part No. No. Description

1 481810 Radiator 2 481742 Hose, Upper Radiator 3 481743 Hose, Lower Radiator 4 04030-03 Lockwasher, 5/16 (.317 x .586 x .078) Helical Spring 5 422701 Bracket, Air Cleaner 6 422697 Bracket, Engine Mounting LH 7 422698 Bracket, Engine Mounting RH 8 422702 Bracket, Radiator Mounting 9 422704 Shroud, Radiator 10 422696 Plate, Engine Mounting 11 481818 Indicator, Air Cleaner 12 481816 Pre-Cleaner, Engine Air 13 481750 Hose, Air Intake 14 48136-09 Clamp, Hose (2.25” Dia.) 15 422703 Hinge, Hood 16 48136-12 Clamp, Hose (1.50” Dia.) 17 422736 Bracket, Hood Support 18 451120 Bracket, Exhaust Support 19 451121 Clamp Weldment, Muffler (Clamp and Weldment)

48633 Clamp, Muffler (Clamp Only) 20 481827 Elbow, Exhaust 21 451083 Screen, Debris 22 451082 Hood 23 481795 Engine, Briggs & Stratton 31 HP

24 ** Air Cleaner Assembly w/ Mounting Band (Not Available Through Scag, Contact Briggs & Stratton) 25 04003-12 Bolt, Carr. 5/16-18 x .75” 26 04019-03 Nut, Serr. Flng 5/16-18 27 04069-02 Pin, Rue Cotter 1/2” dia. 28 04090-04 Rivet, Pop 1/8 x .294” 29 481817 Pad, Radiator 30 481924 Adaptor, Pre-Cleaner 31 ** Coolant Tank Assembly w/Hose (Not Available Through Scag, Contact Briggs & Stratton) 32 43508 Spacer, Radiator 33 04002-12 Bolt, Hex Head M8 x 20MM LG 34 482025 Cooler, Oil 35 422715 Engine Spacer 36 481284 Bumper, Rubber 37 04001-08 Bolt, Hex Head 5/16-18 x .75” 38 04003-07 Bolt, Carrage 1/4-20 x .50” 39 04019-02 Nut, 1/4-20 Serrated Flange 40 04001-11 Bolt, Hex Head 5/16-18 x 1.50” 41 04017-16 Bolt, Hex Head 5/16-18 x .75 Serrated Flange 42 04003-04 Bolt, Carrage 5/16-18 x 1.0” 43 04002-10 Nut, 5/16-18 Elastic Stop 44 04040-15 Flatwasher, 5/16 (.375 x .875 x .083) 45 04021-10 Nut, 5/16-18 Elastic Stop

(Spec. # 580447-0116-E2) Not Available Through Scag, Contact Briggs & Stratton)

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

** Purchase through Briggs & Stratton.

BRAKE AND STEERING COMPONENTS

TO RH PUMP

TO LH PUMP

16 8

9 22

59 61

43 44 45

11 21

38 39

15 65

STT99B&SC

73 48

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 481767 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 item 43) 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 48343-04 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 451071 Brake Linkage, LH

451072 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 481787 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

COOLER

To RT.

UPPER

PORT

ENGINE

TO "B"

To LT.

COOLER

UPPER

PORT

TO "C"

TO "D"

From RT. COOLER BOTTOM

PORT

From LT. COOLER BOTTOM

PORT

55 54

TO "E"

CARB.

43 42

To A

2001- STTBSG-FHS

FUEL AND HYDRAULIC SYSTEM

Ref. Part No. No. Description

1 481919 Hose, Oil Pressure Sender 2 481811 Oil Pressure Sender 3 481813 Oil Manifold 4 481812 Switch, Low Oil Pressure 5 04001-03 Bolt, Hex Head 1/4-20 x 2” 6 461090 Gas Damper (includes items 7 & 10) 7 481357 Spring Clip 8 422826 Clamp Plate, Pump Control 9 04021-04 Locknut, 5/16-18 CTR 10 481356 Ball Stud 11 481793 Block, Pump Control 12 04060-09 Pin, Spring .210 x 1.0” 13 04030-02 Lockwasher, 1/4 Spring 14 04001-04 Bolt, Hex Head 1/4-20 x 1.50” 15 04040-07 Flatwasher, 1/2 (.531 x .062 x .095) 16 04021-07 Nut, 1/2-13 Elastic Stop 17 48350-05 Elbow, 90 Degree, 7/8-14 THD 18 48350-02 Elbow, 90 Degree,3/4-16 THD 19 48353-07 Coupling, 3/4-16 THD 20 481661 Cap, Fuel Tank W/Gauge 21 481740 Hose Assembly, Wheel Motor 22 48350-09 Elbow, 90 Degree, 9/16-18 JIC x 9/16 O-Ring 23 48811 Hose, 3/8” ID. Pushlock - 25.0” (order by the inch) 24 48811 Hose, 3/8" ID. Pushlock - 10.25” (order by the inch) 25 04019-03 Nut, 5/16-18 Serrated Flange 26 04001-03 Bolt, Hex Head 1/4-20 x 2.0” 27 48603-02 O-Ring 28 48938-02 Bushing, 7/8-14 JIC x 3/4-16 O-Ring 29 422354 Support Bracket, Hydraulic Tank 30 04110-01 U-Nut, 1/4-20 31 04021-08 Nut, Hex Elastic Stop 1/4-20 32 48030-09 Hose Clamp

Ref. Part No. No. Description

33 04003-12 Bolt, Carriage 5/16-18 x 3/4" 34 04003-06 Bolt, Carriage 1/4-20 x 1.0” 35 422353 Support Bracket, Fuel Tank 36 04019-02 Nut, Hex 1/4-20 Serrated Flange 37 46978 Oil Reservior Assembly (Incl. item 49) 38 46974 Fuel Tank Assembly (Includes items 39 & 40) 39 48309 Bushing 40 481602 Hose Fitting 41 48058 Fuel Hose, 1/4” ID. - 10” (order by the inch) 42 48568 Valve, Shutoff 43 48058 Fuel Hose, 1/4” ID. - 2” (order by the inch) 44 ** Fuel Filter (Purchase from Briggs & Stratton) 45 ** Fuel Hose To Carb. (Purchase from B & S) 46 48758 Oil Filter 47 421208 Strap, Hydraulic Tank 48 481164 Cap, Hydraulic Tank 49 481507 Insert, Filler Neck 50 48573-02 Elbow, 45 Degree 3/4-16 JIC x 3/4-16 O-Ring 51 48573-02 Elbow, 45 Degree 1/2 NPT x 3/4 JIC 52 48471-02 Oil Filter Base 53 482088 Hose Assembly, (Hydro Tank to Filter Base) 54 481301-03 Elbow, 90 Degree-1/4 NPT x 3/8 Hose 55 48136-07 Clamp, Hose 1/2” 56 48811 Hose, 3/8 ID. Pushlock - 14.50” (order by inch) 57 48811 Hose, 3/8 ID. Pushlock - 38.0” (order by inch) 58 481792 Pump, BDP-21L-305 LH 59 422475 Rear Cover 60 04003-12 Bolt, Carriage 5/16-18 x .75” 61 481819 Pump, BDP-21L-403 RH 62 04003-04 Bolt, Carriage 5/16-18 x 1.0”

63 04021-10 Nut, Hex Elastic Stop 5/16-18 64 48657 Pad, Rubber 65 48604-02 Plug, 3/4-16” “O” Ring

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

ELECTRICAL SYSTEM

21 22

ELECTRICAL SYSTEM

Ref. Part No. No. Description

1 481176-04 Cable, Positive Battery 2 481176-03 Cable, Negative Battery 3 461399 Clutch, Electric PTO 4 481808 Module, Interlock 5 481786 Battery 6 481687 Switch, PTO 7 48798 Switch, Key (Includes Nut and Lockwasher)

48017-03 Nut, 5/8-32 Special

48017-04 Lock Washer 5/8” 8 481806 Cable, Control (Throttle, Choke) 9 481638 Switch, Seat 10 481183 Gauge, Water Temperature 11 481805 Gauge, Oil Pressure 12 481184 Gauge, Volts 13 422524 Panel, Instrument Panel 14 42413 Bracket, Fuse Holder 15 04010-11 Screw, #10-32 x 1.5” Phillips 16 04021-01 Nut, #10-32 Elastic Stop 17 48297 Fuse Holder w/ 20 Amp Fuse 18 48298 Fuse, 20 Amp 19 481822 Harness, Wiring 20 04010-01 Screw, #10-32 x .5” Phillips 21 04020-01 Nut, Hex #10-32 22 04031-01 Lock Washer #10 23 48788 Relay 24 04001-01 Bolt, Hex Head 1/4-20 x .75” 25 04030-02 Lock Washer 1/4” 26 451081 Base, Instrument Panel 27 04110-01 U-Nut, 1/4-20 28 48017-02 Key & Ring Assembly 29 481791 Sender Unit, Water Temperature 30 481812 Switch, Low Oil Pressure 31 481811 Sender Unit, Oil Pressure 32 481813 Manifold, Oil 33 481919 Hose, Oil Pressure Sender 34 04002-17 Bolt, Hex Head M8-1.25 x 14 35 48023 Hour Meter 36 48030-09 Clamp, Cable .5” ID

48030-10 Clamp, Cable .75” ID 37 481335 Boot, Positive Battery Terminal 38 04031-03 Washer, Star

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

HYDRAULIC PUMP ASSEMBLY - BDP-21L

HYDRAULIC PUMP ASSEMBLY

Overhaul Seal Kit

STT 2K BDP-21

HYDRAULIC PUMP ASSEMBLY - BDP-21L

Ref. Part No. No. Description

1 HG 2510065 Housing Kit (Includes Housing, Journal Bearing) 2 HG 2510066 End Cap 3 HG 50641 Straight Headless Pin 4 HG 50633 Socket Head Screw 5 HG 50381 End Cap Gasket 6 HG 2510071 Charge Pump Kit (Includes Charge Cover, Gerotor Assy., O-Ring) 7 HG 50406 Gerotor Assembly 8 HG 9004100-1430 O-Ring

9 HG 70402 Charge Relief Valve Kit

10 HG 9007200-3116 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 50619 Valve Plate 14 HG 70080 Cylinder Block Kit 15 HG 50574 Trunion Seal Retaining Ring 16 HG 2510073 Overhaul Kit 17 HG 50552 Roller Thrust Bearing 18 HG 50203 Swash Plate 19 HG 2000014 Trunnion Arm 20 HG 2000015 Guide Slot 21 HG 2000025 Block Spring 22 HG 2000037 Lip Seal 23 HG 50601 Pump Shaft 24 HG 2000032 Ball Bearing 25 HG 2000038 Retaining Ring 26 HG 51092 Lip Seal 27 HG 2000038 Retaining Ring 28 HG 2000023 Spacer

SWITCH

INTERLOCK

BRAKE

SWITCH

RED

INTERLOCK

ORG

RED W/WHT

RED

SWITCH

WIRE HARNESS, STT - 31BSG

PART NUMBER 481822

FUEL

PUMP

TEMP

BLK

WATER

BLK

BRN

SEAT

SWITCH

RED

WHITE W/BLK

RED

OIL

SENDER

HOUR

BLK

METER

RED

BLUE

BLK

PTO

CLUTCH

OIL

SWITCH

PRESSURE

GRN

RED

RELAY

GRN W/BLK

GRN W/WHITE

PINK

WHITE W/RED

BLK

ORG

BRN

RED

BLUE

RED

BLK

STARTER

RED

WHITE W/BLK

BLK W/ WHITE

STARTER

FUSE

40 AMP

STARTER

SOLENOID

YEL YEL

BLK

GRN W/WHITE

BLK

RED

ALT

RED

GRN

BLUE

GROUND

WHT W/RED

PICK-UP

TRIGGER

IGNITION MODULE

WHT W/PINK

POS

NEG

COIL #1

WHT W/RED

WHT W/BRN

POS

NEG

COIL #2

WHT W/RED

WHT W/LT BLUE

POS

NEG

COIL #3

WHT W/RED

OIL

PRESSURE

WHT W/BLK

PINK

RED

BLK

LT BLUE

MODULE

INTERLOCK

ORG

BRN

VOLT

BLK

METER

RED

BLUE

PTO

SWITCH

LT BLUE

RED

GRN

SWITCH

IGNITION

RED

BLK

RED

BLK

OIL

GAUGE

PRESSURE

BLK W/WHT

RED

FUSE

20 AMP

RED

WATER

BLK

TEMP

GAUGE

482285

482286

48320 - 61" 48327 - 72" 481955 - 61A 481956 - 71A

48656

48404

481568

482290

481039

481348

481543

482287

481971

CHOKE

SLOW FAST

481348

WARNING

INSTALL BELT COVER BEFORE

OPERATING MACHINE

READ OPERATOR'S MANUAL

481039

CUTTING

HEIGHT

5.5 5

4.5 4

3.5 3

2.5 2

1.5 1

481543

FORWARD

REVERSE

481669

PULL OUT TO ENGAGE

START

PUSH IN TO DISENGAGE

OFF

MOWER DECK

STT-31BSG Decals

MANUFACTURED UNDER ONE OR MORE OF THE FOLLOWING PATENTS:

4, 487, 006 4, 991, 382 5, 832, 708 4, 885, 903 4, 998, 948 5, 865, 018 4, 920, 733 5, 118, 617 4, 967, 543 5, 826, 416

PATENTS PENDING

Hea

vy-

Duty

Co mmerc

ial

481971

REPLACEMENT DECALS AND INFORMATION PLATES

48825

48314

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

481937

481921

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

481925

481921

481663

481664

482165

481664

481663

STT-31BSG Decals 2

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, hydraulic hoses and tires are warranted for ninety (90) days. * Batteries are covered for ninety (90) days. * Frame and structural components including oil reservoir, fittings, and oil coolers are warranted for 1 year. * Cutter decks are warranted against cracking for a period of three (3) years. (Parts and labor 1st year; Parts only 2nd and 3rd year.) The repair or replacement of the cutter deck will be at the option of Scag Power Equipment. We reserve the right to request components for evaluation. This warranty does not cover any mower that has been subject to misuse, neglect, negligence, or accident, or that has been operated in any way contrary to the operating instructions as specified in the Operators Manual. * Engines and electric starters are covered by the engine manufacturers warranty period. * Major drive system components (hydraulic pumps and hydraulic motors only) are warranted for two (2) years by Scag Power Equipment. (Parts and labor 1st year; Parts only 2nd year.) (Two year warranty excludes fittings, hoses, cooling system, oil reservoir, drive belts, transaxles). The repair or replacement of the hydraulic pump or hydraulic motor will be at the option of Scag Power Equipment. This warranty does not cover any mower that has been subject to misuse, neglect, negligence, or accident, or that has been operated in any way contrary to the operating instructions as specified in the Operators Manual. * Electric clutches have a Limited Warranty for 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. 03093

PRINTED 11/00

PRINTED IN USA

Scag STT-31BSG User Manual 2

Specifications and Main Features

Frequently Asked Questions

User Manual