Scag STT52V-25CH-LP, STT61V-25CH-LP User Manual

OPERATOR’S MANUAL

Turf Tiger

Propane

Model: STT52V-25CH-LP STT61V-25CH-LP

Congratulations on owning a Scag mower! This manual contains the operating instructions and safety information for your Scag mower. Reading this manual can provide you with assistance in maintenance and adjustment procedures to

keep your mower performing to maximum efciency. The specic models that

this book covers are listed on the inside cover. Before operating your machine, please read all the information enclosed.

PART NO. 03276

PRINTED 1/2011

PRINTED IN USA

WARNING

FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT

IN SERIOUS INJURY OR DEATH.

Read this manual completely as well as other manuals that came with your mower.•

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

Under no circumstances should the machine be operated on slopes greater than 15 • degrees. ALWAYS FOLLOW OSHA APPROVED OPERATION.

Stay two cut widths away from slopes, drop offs, ditches and retaining walls.•

DO NOT mow on wet grass. Wet grass reduces traction and steering control.•

Keep all shields in place, especially the grass discharge chute.•

Before performing any maintenance or service, stop the machine and remove the • spark plug wire and ignition key.

If a mechanism becomes clogged, stop the engine before cleaning.•

Keep hands, feet and clothing away from power-driven parts.•

Keep others off the mow• er (only one person at a time)

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

HAZARD CONTROL AND ACCIDENT PREVENTION ARE DEPENDENT UPON THE AWARENESS, CONCERN, PRUDENCE, AND PROPER TRAINING OF THE PERSONNEL INVOLVED IN THE OPERATION, TRANSPORT, MAINTENANCE, AND STORAGE OF THE EQUIPMENT.

This manual covers the operating instructions and illustrated parts list for:

STT52V-25CH-LP with a serial number of F5300001 to F5399999

STT61V-25CH-LP with a serial number of F5500001 to F5599999

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

Table of Contents

GENERAL INFORMATIONSECTION 1 - ...................................................................................1

1.1 INTRODUCTION ...........................................................................................................................................1

1.2 DIRECTION REFERENCE ...........................................................................................................................1

1.3 SERVICING THE ENGINE AND DRIVE TRAIN COMPONENTS .................................................................1

1.4 SYMBOLS .................................................................................................................................................... 2

SAFETY INFORMATIONSECTION 2 - ......................................................................................3

2.1 INTRODUCTION ...........................................................................................................................................3

2.2 SIGNAL WORDS ..........................................................................................................................................3

2.3 BEFORE OPERATION CONSIDERATIONS ................................................................................................ 3

2.4 OPERATION CONSIDERATIONS ................................................................................................................ 4

2.5 ROLL-OVER PROTECTION SYSTEM ......................................................................................................... 6

2.6 MAINTENANCE CONSIDERATIONS & STORAGE ....................................................................................8

2.7 USING A SPARK ARRESTOR .....................................................................................................................8

2.8 SPARK IGNITION SYSTEM .........................................................................................................................8

2.9 SAFETY AND INSTRUCTIONAL DECALS ................................................................................................. 9

SPECIFICATIONSSECTION 3 - ..............................................................................................10

3.1 ENGINE ...................................................................................................................................................... 10

3.2 ELECTRICAL ............................................................................................................................................. 10

3.3 POWER HEAD ........................................................................................................................................... 10

3.4 CUTTER DECK .......................................................................................................................................... 11

3.5 HYDRAULIC SYSTEM ...............................................................................................................................11

3.6 WEIGHTS AND DIMENSIONS ...................................................................................................................11

3.7 PRODUCTIVITY ......................................................................................................................................... 11

OPERATING INSTRUCTIONSSECTION 4 - ...........................................................................12

4.1 CONTROLS AND INSTRUMENT IDENTIFICATION ................................................................................12

4.2 SAFETY INTERLOCK SYSTEM ................................................................................................................13

4.3 INITIAL RUN-IN PROCEDURES ................................................................................................................13

4.4 STARTING THE ENGINE ...........................................................................................................................14

4.5 GROUND TRAVEL AND STEERING .........................................................................................................14

4.6 ENGAGING THE DECK DRIVE (CUTTER BLADES) ................................................................................15

4.7 HILLSIDE OPERATION ..............................................................................................................................16

4.8 PARKING THE MOWER .............................................................................................................................16

4.9 AFTER OPERATION ..................................................................................................................................16

4.10 REMOVING CLOGGED MATERIAL ........................................................................................................16

4.11 MOVING MOWER WITH ENGINE STOPPED .......................................................................................... 17

4.12 RECOMMENDATIONS FOR MOWING ....................................................................................................17

4.13 ADJUSTING CUTTING HEIGHT ..............................................................................................................17

4.14 ADJUSTING THE STEERING LEVERS ...................................................................................................18

4.15 ADJUSTING THE HEIGHT ADJUST PEDAL ..........................................................................................18

4.16 TOWING (OPTIONAL HITCH ACCESSORY)...........................................................................................19

Table of Contents

TROUBLESHOOTING CUTTING CONDITIONSSECTION 5 - ...............................................20

ADJUSTMENTSSECTION 6 - .................................................................................................23

6.1 PARKING BRAKE ADJUSTMENT ............................................................................................................23

6.2 TRAVEL ADJUSTMENTS ..........................................................................................................................24

6.3 THROTTLE CONTROL AND CHOKE ADJUSTMENTS ............................................................................25

6.4 BELT ADJUSTMENT .................................................................................................................................25

6.5 BELT ALIGNMENT .....................................................................................................................................26

6.6 CUTTER DECK ADJUSTMENTS ..............................................................................................................26

6.7 ELECTRIC CLUTCH ADJUSTMENT .........................................................................................................29

MAINTENANCESECTION 7 - ..................................................................................................30

7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS ......................................................30

7.2 LUBRICATION ............................................................................................................................................31

7.3 HYDRAULIC SYSTEM ...............................................................................................................................33

7.4 ENGINE OIL ............................................................................................................................................... 34

7.5 ENGINE FUEL SYSTEM ............................................................................................................................34

7.6 ENGINE AIR CLEANER .............................................................................................................................35

7.7 BATTERY ....................................................................................................................................................35

7.8 DRIVE BELTS .............................................................................................................................................36

7.9 CUTTER BLADES ......................................................................................................................................37

7.10 TIRES ........................................................................................................................................................38

7.11 CUTTER DECK GEARBOX .....................................................................................................................38

7.12 BODY, DECK, AND UPHOLSTERY .........................................................................................................39

ILLUSTRATED PARTS LISTSECTION 8 - ..............................................................................40

8.1 SCAG APPROVED ATTACHMENTS AND ACCESSORIES. .....................................................................40

52V CUTTER DECK .........................................................................................................................................42

61V CUTTER DECK .........................................................................................................................................44

CUTTER DECK CONTROLS ...........................................................................................................................46

SHEET METAL COMPONENTS ......................................................................................................................48

STT ROLL-OVER PROTECTION SYSTEM .....................................................................................................50

STT SUSPENSION SEAT ................................................................................................................................52

DECK DRIVE COMPONENTS .........................................................................................................................54

ENGINE AND ATTACHING PARTS - KOHLER LP .........................................................................................56

BRAKE AND STEERING COMPONENTS ......................................................................................................58

HYDRAULIC SYSTEM - KOHLER LP .............................................................................................................60

LP SYSTEM - KOHLER ................................................................................................................................... 62

BDP-16A HYDRAULIC PUMP ASSEMBLY .....................................................................................................64

ELECTRICAL SYSTEM - KOHLER LP ............................................................................................................66

REPLACEMENT DECALS AND INFORMATION PLATES .............................................................................68

ELECTRICAL SCHEMATIC - KOHLER LP .....................................................................................................70

LIMITED WARRANTY - COMMERCIAL EQUIPMENT ............................Inside Back Cover

Section 1

SERIAL NUMBER PLATE LOCATION

MODEL

SERIAL

Division of Metalcraft of Mayville, Inc.

Mayville, Wisconsin 53050

Patents Issued and Pending

MANUFACTURED UNDER ONE OR MORE

OF THE FOLLOWING PATENTS:

PATENTS PENDING

4,487,006

4,885,903

4,920,733

4,967,543

4,991,382

4,998,948

5,118,617

5,826,416

5,832,708

5,865,018

GENERAL INFORMATION

INTRODUCTION1.1

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

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

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

- IMPORTANT -

The replacement of any part on this product by other than the manufacturer's authorized replacement part may adversely affect the performance, durability or safety of this product.

USE ONLY SCAG APPROVED ATTACHMENTS AND ACCESSORIES.

Attachments and accessories manufactured by companies other than Scag Power Equipment are not approved for use on this machine. See Section 8-1.

WARNING

For pictorial clarity, some illustrations and ﬁgures in this manual may show shields, guards or plates open or removed. Under no circumstances should your mower be operated without these devices in place.

All information is based upon product information available at the time of approval for printing. Scag Power Equipment reserves the right to make changes at any time without notice and without incurring any obligation.

DIRECTION REFERENCE1.2

When ordering parts, always give the model and serial number of your mower. The serial number plate is located between the seat and the controls where shown in Figure 1-1.

Use of other than original Scag replacement parts will void the warranty.

Mower Serial Number Plate LocationFigure 1-1.

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.

SERVICING THE ENGINE AND DRIVE 1.3

TRAIN COMPONENTS

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 impor tant 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.

SYMBOLS1.4

48071S

481039S

SYMBOL DESCRIPTION SYMBOL DESCRIPTION

Choke

Transmission

Section 1

Parking Brake

On/Start

Off/Stop

Falling Hazard

Fast

Continuously Variable - Linear

Spinning Blade

Spring Tension on Idler

Oil

Thrown Object Hazard

Slow

Cutting Element - Basic Symbol

Pinch Point

Hour meter/Elapsed Operating Hours

Thrown Object Hazard

Cutting Element - Engage

Cutting Element - Disengage

Read Operator's Manual

Keep Bystanders Away

Section 2

SAFETY INFORMATION

INTRODUCTION2.1

Your mower is only as safe as the operator. Carelessness or operator error may result in serious bodily injury or death. Hazard control and accident prevention are dependent upon the awareness, concern, prudence, and proper training of the personnel involved in the operation, transport, maintenance and storage of the equipment. Make s u re ever y o perat or is proper l y trai ned a nd thoroughly familiar with all of the controls before operating the mower. The owner/user can prevent and is responsible for accidents or injuries occurring to themselves, other people or property.

DANGER

The signal word “DANGER” denotes that an extremely hazardous situation exists on or near the machine that could result in high probability of death or irreparable injury if proper precautions are not taken.

WARNING

RE A D TH I S O PE R ATO R’ S MA N UA L B E F OR E ATTEMPTING TO START YOUR MOWER.

A replacement manual is available from your authorized Scag Service Dea ler or by contac ting Sc ag Power Equipment, Service Department at P.O. Box 152, Mayville, WI 53050 or contact us via the Internet at www.scag.com. The manual for this machine can be downloaded by using the model and serial number or use the contact form to make your request. Please indicate the complete model and serial number of your Scag product when requesting replacement manuals.

SIGNAL WORDS2.2

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

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

The signal word “WARNING” denotes that a hazard exists on or near the machine that can result in injury or death if proper precautions are not taken.

CAUTION

The signal word “CAUTION” is a reminder of safety practices on or near the machine that could result in personal injury if proper precautions are not taken.

Your safety and the safety of others depends significantly upon your knowledge and understanding of all correct operating practices and procedures of this machine.

BEFORE OPERATION 2.3

CONSIDERATIONS

WARNING

Check all hydraulic connections for tightness. Inspect all hydraulic hoses and / or lines to insure they are in good condition before operating.

SIGNAL WORD:

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

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

Do not mow when children and/or others are 2. present. Keep children out of the mowing area and in the watchful care of a responsible adult other than the operator. Be alert and turn machine off if a child enters the area.

Section 2

DO NOT allow children to ride or play on the 3. machine, it is not a toy.

Clear the area to be mowed of objects that could be

4. picked up and thrown by the cutter blades.

DO NOT carry passengers.5.

DO NOT operate the machine under the influence of 6. alcohol or drugs.

If the operator(s) or mechanic(s) cannot read 7. English, it is the owner's responsibility to explain this material to them.

DO NOT wear loose fitting clothing. Loose clothing, 8. jewelry or long hair could get tangled in moving parts. Do not operate the machine wearing shorts; always wear adequate protective clothing including long pants. Wearing safety glasses, safety shoes and a helmet is advisable and is required by some local ordinances and insurance regulations.

WARNING

Always wear hearing protection. Operating this machine over prolonged periods of time can cause loss of hearing.

10.

Be sure the interlock switches are functioning correctly.

Fuel is flammable; handle it with care. Fill the LP 11. tank outdoors. Never fill it indoors. Clean up any spillage before starting the engine.

Keep flammable objects (cigarettes, matches, etc.), 12. open flames and sparks away from the LP tank.

Equipment must comply with the latest requirements 13. 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.

Do not operate without the side discharge chute 14. installed and in the down position or with an optional grass catcher or mulch plate completely installed.

Check the blade mounting bolts at frequent intervals 15. for proper tightness.

Make sure all hydraulic fluid connections are tight 16. and all hydraulic hoses and lines are in good condition before starting the machine.

Keep the machine and attachments in good 9. operating condition. Keep all shields and safety devices in place. If a shield, safety device or decal is defective or damaged, repair or replace it before operating the machine.

WARNING

This machine is equipped with an interlock system intended to protect the operator and others from injury. This is accomplished by preventing the engine from starting unless the deck drive is disengaged, the 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 position and the parking brake is not engaged. Never operate equipment with the interlock syst em dis connected or malfunctioning.

OPERATION CONSIDERATIONS2.4

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

WARNING

DO NOT operate on steep slopes. To check a slope, attempt to back up it (with the cutter deck down). If the machine can back up the slope without the wheels slipping, reduce speed and use extreme caution. Under no circumstances should the machine be operated on slopes greater than 15 degrees. See Figure 2-4, Page 7 to determine approximate slope of area to be mowed. ALWAYS FOLLOW OSHA APPROVED OPERATION.

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

Section 2

Stay two cut widths away from slopes, drop offs, 3. ditches and retaining walls.

To prevent tipping or loss of control, start and stop 4. smoothly, avoid unnecessary turns and travel at reduced speed.

When using any attachment, never direct the 5. discharge of material toward bystanders or allow anyone near the machine while in operation.

Before attempting to start the engine, with the 6. operator in the seat, disengage power to the cutter deck, place the steering control levers in the neutral position and engage the parking brake.

If the mower discharge ever plugs, shut off the 7. engine, remove the ignition key, and wait for all movement to stop before removing the obstruction.

WARNING

DO NOT use your hand to dislodge the clogged discharge chute. Use a stick or other device to remove clogged material after the engine has stopped running and the blades have stopped turning.

Disengage power to the attachments when 15. transporting or when not in use.

The machine and attachments should be stopped

16. and inspected for damage after striking a foreign object, and damage should be repaired before restarting and operating the machine.

CAUTION

Do not touch the engine or the mufﬂer while the engine is running or immediately after stopping. These areas may be hot enough to cause a burn.

DANGER

DO NOT run the engine inside a building or a confined area without proper ventilation. Exhaust fumes are haz ardous and con tain carbon monoxide which can cause brain injury and death.

Be alert for holes, rocks, roots and other hidden 8. hazards in the terrain. Keep away from any dropoffs. Beware of overhead obstructions (low limbs, etc.), underground obstacles (sprinklers, pipes, tree roots, etc.). Cautiously enter a new area. Be alert for hidden hazards.

Disengage power to cutter deck before backing up. 9. Do not mow in reverse unless absolutely necessary and then only after observation of the entire area behind the mower. If you must mow in reverse, maintain a constant lookout to the rear of the machine and mow slowly.

DO NOT turn sharply. Use care when backing up.10.

Disengage power to cutter deck before crossing 11. roads, walks or gravel drives.

Mow only in daylight or good artificial light.12.

NEVER raise the deck with the blades engaged.13.

Take all possible precautions when leaving the 14. machine unattended, such as disengaging the mower, lowering the attachments, setting the parking brake, stopping the engine, and removing the key.

Keep hands and feet away from cutter blades and

17. moving parts. Contact can injure.

18.

Transport the mower using a heavy duty trailer or truck. Insure the trailer or truck has all of the necessary lighting and markings as required by laws, codes, and ordinances. Secure a trailer with a safety chain.

Be cautious when loading and unloading onto 19. trailers or trucks. Use only a full width ramp. Ramp angle should be no more than 15 degrees. Back up the ramp and drive down forward.

When transporting the mower, make sure the park 20. brake is engaged, the steering control levers are in the neutral position, the engine is off with the key removed, and the wheels have been blocked.

Tie the mower down securely using straps, chains,

21. cable, or ropes. Both front and rear straps must be directed down and outward from machine.

22.

Use care when approaching blind corners, shrubs, trees, or other objects that may obscure vision.

NEVER leave the machine running unattended.23.

Section 2

UPRIGHT AND LOCKED POSITION

HAIR PIN

LOCK PIN

ROLL-OVER PROTECTION SYSTEM2.5

WARNING

Keep the roll bar in the raised and locked position and the seat belt securely fastened during operation. Failure to do so could cause serious injury or loss of life.

This mower has been designed for good traction and stability under normal mowing conditions. However, caution must be used when traveling on slopes, especially when the grass is wet. Do not mow on wet grass. Wet grass reduces traction and steering control.

Any or all parts of the Roll-Over Protection System MUST NOT be removed. Failure to adhere to this guideline could result in injury or death.

Lower the roll bar only when absolutely necessary.

To lower the roll bar, loosen the tension knob on both 1. the left hand and right hand bar. See Figure 2-1.

Remove the hairpin cotter pins and remove the two 2. (2) lock pins. See Figure 2-2.

Lower the roll bar to the down position.3.

To raise the roll bar, lift the bar to the upright 4. position.

Install the two (2) lock pins through the hole, secure 5. with the two (2) hairpin cotter pins and tighten the tension knobs. See Figure 2-2. Remove the seat belt from the retainer brackets.

WARNING

There is no roll-over protection when the roll bar is in the down position.

Lower th e roll ba r on l y when absolutely necessary.

Raise the roll bar as soon as clearance permits.

DO NOT wear the seat belt when the roll bar is in the down position.

ALWAYS wear seat belt when roll bar is in the up position.

Operate the machine smoothly, no sudden turns, starts or stops.

Check the area carefully before mowing for proper overhead clearance (i.e. branches, doorways, etc.).

Foldable Roll-Over Protection SystemFigure 2-1.

ROPS HingeFigure 2-2.

DO NOT contact any overhead object with the roll bar.

Section 2

INSPECT WEBBING

INSPECT BUCKLE & LATCH

The poten t ial exposu re of t he sea t belt to severe environmental conditions make it crucial to inspect the seat belt system regularly.

It is recommended that the seat belt be inspected on a daily basis for signs of damage. Any seat belt system that shows cuts, fraying, extreme or unusual wear, significant discoloration due to UV exposure, dirt or stiffness, abrasion to the seat belt webbing, or damage to the buckle, latch plate, hardware or any other obvious problem should be replaced immediately.

WARNING

Failure to properly inspect and maintain the seat belt can cause serious injury or loss of life.

Check the full length of the seat belt webbing for 1. cuts, wear, fraying, dirt and stiffness. See Figure 2-3.

Check the seat belt webbing in areas exposed to 2. ultra violet rays from the sun or extreme dust or dirt. If the original color of the webbing in these areas is extremely faded and/or is packed with dirt, the physical strength of this webbing may have deteriorated. If this condition exists, replace the seat belt system.

Check the buckle and latch for proper operation 3. and determine if the latch plate is excessively worn, deformed, or if the buckle is damaged or cracked. See Figure 2-3.

Figure 2-4.

WARNING

Reduce speed when turning, operating on slopes, slick or wet surfaces. Allow extra distance to stop.

Stay off of slopes too steep for safe operation. To check a slope, attempt to back up it (with the cutter deck down). If the machine can not back up the slope without the wheels slipping, do not operate the machine on this slope. Under no circumstances should the machine be operated on slopes greater than 15 degrees. See Figure 2-4 to determine approximate slope.

DO NOT mow near drop-offs, ditches or embankments. The machine could suddenly roll over if a wheel goes over the edge or if the edge caves in.

Operate the machine smoothly, no sudden turns, starts or stops on a slope.

NEVER tow on slopes. The weight of the towed equipment may cause loss of traction and loss of control.

DO NOT permit untrained personnel to operate the machine.

Be cautious when loading and unloading onto

Seat Belt InspectionFigure 2-3.

trailers or trucks.

Use only a full width ramp.

Ramp angle should be no more than 15 Degrees. See Figure 2-4 to help determine approximate slope.

Back up the ramp and drive down forward.

MAINTENANCE CONSIDERATIONS & 2.6

STORAGE

Section 2

WARNING

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

Disengage drives, lower implement, set parking

2. brake, stop engine and remove key or disconnect spark plug wire to prevent accidental starting of the engine when servicing or adjusting the machine. Wait for all movement to stop before adjusting, cleaning or repairing.

Disconnect battery or remove spark plug wire before 3. making any repairs. Disconnect the negative terminal first and the positive last. Reconnect the positive first and the negative last.

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

Do not change the engine governor settings or 5. overspeed the engine. See the engine operator's manual for information on engine settings.

To reduce fire hazard, keep the cutting units, drives, 6. muffler and engine free of grass, leaves, excessive grease, oil and dirt.

Park the machine on level ground and engage the

7. parking brake.

NEVER allow untrained personnel to service the machine.

Hydraulic ﬂuid is under high pressure and can penetrate skin causing 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.

Keep body and hands away from pinholes or nozzles that eject hydraulic fluid under high pressure.Use paper or cardboard and not hands to search for leaks.

Safely relieve all pressure from the hydraulic system by placing the control levers in the neutral lock position and shutting off the engine before performing any work on the hydraulic system.

If you need service on your hydraulic system, please see your authorized Scag dealer.

Let the engine cool before storing.13.

DO NOT store the machine near an open flame.14.

Shut off fuel while storing or transporting.15.

DO NOT store fuel near flames or drain indoors.16.

Charge batteries in an open, well ventilated area, 17. away from spark and flames. Unplug charger before connecting or disconnecting from battery. Wear protective clothing and use insulated tools.

Use care when checking blades. Use a Blade Buddy, 9. wrap the blade(s) or wear gloves and USE CAUTION when servicing blades. Only replace blades. NEVER straighten or weld blades.

Keep all parts in good working condition. Replace all 10. worn or damaged decals.

Use jack stands to support components when 11. required.

Carefully release pressure from components with

12. stored energy.

USING A SPARK ARRESTOR2.7

The engine in this machine is not equipped with a spark arrestor muffler. It is in violation of California Public Resource Code Section 4442 to use or operate this engine on or near any forest covered, brush covered or grass covered land unless the exhaust system is equipped with a spark arrestor meeting any applicable local or state laws. Other states or federal areas may have similar laws. Check with your state or local authorities for regulations pertaining to these requirements.

SPARK IGNITION SYSTEM2.8

This spark ignition system complies with Canadian ICES-002.

Section 2

WARNING

SAFETY AND INSTRUCTIONAL DECALS2.9

483407

WARNING

INSTALL BELT COVER BEFORE

OPERATING MACHINE

READ OPERATOR'S MANUAL

483402

FORWARD

483406

483633

484293

483300

483425

REVERSE

481568

WARNING

Operation of this equipment may create sparks that can start res around dry vegetation. A spark arrestor may be required. The operator should contact local re agencies for laws or regulations relating to re prevention requirements.

483900

(supplied with California

models only)

483900

484321

484320

2011 STT-25CH-LP Safety Decals

Section 3

SPECIFICATIONS

ENGINE3.1

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

Brand ............................................................................................................................. Kohler [Spec. #PS-CH730-0220]

Model ...........................................................................................................................................................Kohler CH730

Horsepower ........................................................................................................................................ 25HP at 3600 RPM

Type .......................................................................................................4 Cycle, 2 Cylinder, Horizontal Shaft, Air Cooled

Displacement ........................................................................................................................................................... 725cc

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

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

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

Fuel Injection ...........................................................................................................Injection Pump, Bosch MD Mini Type

Fuel .................................................................................................................................................. Commercial Propane

Oil Pump Group ........................................................................Positive Displacement Gerotor™ Oil Pump with Oil Filter

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

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

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

Pump Drive Belt .............................................................................................................. Scag Part Number - 483086

ELECTRICAL3.2

Battery ..................................................................................................................................... 12 Volt, Maintenance Free

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

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

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

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

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

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

Fuses, Safety Start Module

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

POWER HEAD3.3

Drive System ............... Hydraulic Drive with Two Variable Displacement Pumps and Two Cast-Iron High-Torque Motors

Hydrostatic Pumps ....................................................... Two Hydro-Gear™ BDP 16 cc/rev. Pumps with Dump Valves for

movement without running the engine and pressure relief valves

Drive Wheel Motors ....................................................................Two Parker 14.5 cu. inch Cast-Iron High-Torque Motors

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

Individual Control to Each Wheel with Gas Spring Dampers

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

Wheels:

(2) Front Caster .................................................................................................. 13 X 6.00 Flat-Free Semi-Pneumatic

(2) Drive .................................................................. (52) 23 x 10.5 - 12 Fourr-Ply Pneumatic Tiubeless, Radius Edge

(61) 24X12 - 12 Four-Ply Pneumatic Tubeless, Radius Edge Tire Pressure:

Front Caster....................................................................................................................................................Flat Free

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

LP Tank ........................................................................................................................................33.5# Industrial LP Tank

Seat .......................................................................................................................................................................Padded

Travel Speed:

Forward .............................................................................................................................................. Up to 10.5 MPH

Reverse .................................................................................................................................................. Up to 6 MPH

-NOTE- The machine will travel at 10mph for transport purposes. For best cutting performance the forward travel

speed should be adjusted depending upon the cutting conditions.

Section 3

CUTTER DECK3.4

Type ......................... Floating, Adjustable, Anti-Scalping, Hybrid Design Combines Out-Front and Belly-Mount Designs

Construction ............................................................................................................................Tri-Plate deck construction

Top of deck consists of three steel plates totaling nearly 1/2" of steel,7-gauge (3/16") deck skirt. True Cutting Width:

52V ........................................................................................................................................................52" (132.0 cm)

61V ........................................................................................................................................................61" (155.0 cm)

Cutting Height Adjustment ...........Foot-Operated Lever Adjustment from Operator's Seat, 1.0" to 6.0" in 1/4"increments

Cutter Blades .................................................................................... .197 Thick, Milled Edge, Wear Resistant Marbain™

52V .............................................................................................................................................. Three (3) 18" blades

61V .............................................................................................................................................. Three (3) 21" blades

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

Connected to the Cutter Deck Gearbox through a Drive Shaft.

Discharge Opening ....................Extra-Wide Discharge Opening with Spring-Loaded Discharge Chute and Turbo Bafﬂe

Discharge Chute ...................................................................................................Black, Polypropylene (Plastic), Flexible

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 ............................................................................................ Split Steel with Easily Removed Taper Hubs

Cutter Deck Belts .................................................................. B-Section with Kevlar Cord, Self-Adjusting, Self-Tightening

Electric Clutch Type ................................................................................................Ogura Heavy Duty PTO Clutch Brake

Drive Shaft ............................................................................................Clamp Yoke Shaft With Two High-Speed U-Joints

HYDRAULIC SYSTEM3.5

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

Hydraulic Reservoir .....................................................................................................................Nylon; 3 Quart Capacity

WEIGHTS AND DIMENSIONS 52V 61V3.6

Length................................................................................................................................ 83" .................................87.5"

Tracking Width ................................................................................................................... 51" ....................................56"

Overall Width w/chute down .............................................................................................64.5" ................................73.5"

Overall Width w/chute up ................................................................................................... 53" ....................................62"

Overall Height w/ROPS up ............................................................................................... 67.5" ................................67.5"

Overall Height w/ROPS down ...........................................................................................56.5" ................................56.5"

Operating Weight w/ROPS .............................................................................................. 1325# ............................. 1425#

PRODUCTIVITY 52V 61V3.7

Cutting Width ..................................................................................................................... 52" ....................................61"

Acres Per Day ................................................................................................................... 20.2 .................................. 23.7

The preceding chart will aid you in determining how many acres your Scag mower will cut per day. The chart is an estimate based on 8 hours per day cutting time at 6 MPH with a 20% allowance for overlap and turns.

OPERATING INSTRUCTIONS

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OFF

LEFT STEERING

CONTROL

HOURMETER

RIGHT STEERING

CONTROL

DECK LIFT

DECK RELEASE

PARKING BRAKE

CONTROL

CUTTING HEIGHT

ADJUSTMENT

SEAT BELT

AMMETER

OFF

START

MOWER DECK

PULL OUT TO ENGAGE

PUSH IN TO DISENGAGE

MOWER DECK SWITCH

IGNITION SWITCH

ENGINE

THROTTLE

CONTROL

FUSES

DUMP VALV E

CHOKE

481348

ENGINE

CHOKE

CONTROL

CAUTION

Do not attempt to operate this mower unless you have read this manual. Learn the location and purpose of all controls and instruments before you operate this mower.

CONTROLS AND INSTRUMENT 4.1

IDENTIFICATION

Before operating the mower, familiarize yourself with all mower and engine controls. Knowing the location, function and operation of these controls is important for safe and efficient operation of the mower.

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

Section 4

Mower Deck Switch (Figure 4-1). 2. Used to engage

and disengage the mower drive system. Pulling up on the switch will engage the deck drive. Pushing down on the switch will disengage the deck drive.

Engine Choke Control (Figure 4-1).

3. Used to start

a cold engine.

Engine Throttle Control (Figure 4-1).4. Used to control the engine speed. Pushing the lever forward increases engine speed. Pulling the lever back decreases engine speed. Full back position is the IDLE position. Full forward is the cutting position.

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

Controls and InstrumentsFigure 4-1.

Section 4

390S141-1

DUMP VALV E CONTROL

Hourmeter (Figure 4-1).6. Indicates the number of hours the engine has been operated. It only operates when the engine is running. Has preset maintenance reminders for engine and hydraulic system oil changes. Will start flashing scheduled maintenance 2 hours before preset time and continue flashing until 2 hours after. Automatically resets.

Fuse Holders (Figure 4-1).

7. There are two 20 amp

fuses that protect the mower's electrical system. To replace fuses, pull fuse out of the socket and install a new fuse.

8. Used to control

Left Steering Control (Figure 4-1).

the mower's left wheel when traveling forward or reverse.

Right Steering Control (Figure 4-1).

9. Used to

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

10. Used to

Parking Brake Control (Figure 4-1).

engage and disengage the parking brakes. Pull the lever back to engage the parking brakes. Push the lever forward to disengage the parking brakes.

Dump Valve Control Levers (Figure 4-2). 11. Located on the hydraulic pumps, used to “free-wheel” the mower. Rotating the levers clockwise until they stop allows the unit to move under hydraulic power. The levers must be in this position and torqued to 10 lb-ft during operation of the mower. Rotating the levers counter-clockwise allows the mower to be moved by hand (free-wheeling).

Deck Release Lever (Figure 4-1). 14. Used to lock the cutter deck in the transport position. Push the foot pedal forward and pull back on the release lever to release the cutter deck for normal mowing.

Seat Belt (Figure 4-1). 15. Used to secure the operator. Seat belt must be worn at all times when the ROPS is in the upright and locked position.

Seat Hold Down Release Latch (Figure 4-1).

16.

Located behind the seat. Used to secure the seat in the operator's position. Release the latch to gain access under the seat.

SAFETY INTERLOCK SYSTEM4.2

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.

Dump Valve ControlFigure 4-2.

Deck Lift Foot Lever (Figure 4-1). 12. Used to raise and lower the cutter deck. Push full forward to lock in the transport position.

Cutting Height Adjustment (Figure 4-1).13. Used to set the cutter deck at the desired cutting height.

INITIAL RUN-IN PROCEDURES4.3

FIRST DAY OF USE OR APPROXIMATELY 20 HOURS

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

Change the engine oil and oil filter after the first 20 2. hours of operation. (See Section 7.4.)

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

7.3.)

Check for loose hardware. Tighten as needed.

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

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

Section 4

STARTING THE ENGINE4.4

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.

Make sure the fuel valve is completely open on the 1. LP tank.

Secure the ROPS in the upright and locked position.2.

Sit in the operator’s seat, fasten seat belt and place 3. the steering control levers in the neutral position.

Engage the parking brake.

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 7. speed.

Turn the ignition key to the START position and 8. 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.

Allow engine to warm before operating the mower.

GROUND TRAVEL AND STEERING4.5

- IMPORTANT -

Learn the operation on flat ground before operating on slopes.

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, pull levers inward out of the neutral lock position and slowly push the steering control levers forward an equal distance. The further the steering control levers are pushed forward the greater the forward speed will be. To increase the speed, push the steering control levers further forward and to decrease the speed, pull the steering control levers back.

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

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

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

- 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.

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.

- 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 4.1, items 12 - 14, on page 13 for cutter deck raising descriptions.)

Section 4

390S0138

PULL UP TO ENGAGE

PUSH DOWN TO DISENGAGE

REVERSE TRAVEL

CAUTION

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

CAUTION

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

To travel in reverse, pull levers inward out of the neutral lock position and pull both handles back. Keep the travel speed low while traveling in reverse.

ENGAGING THE DECK DRIVE (CUTTER 4.6

BLADES)

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

Engage the deck drive by pulling out on the yellow

2. switch, located on the instrument panel, to the engage position. See Figure 4-3.

Cutter Engage SwitchFigure 4-3.

- NOTE -

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

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

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

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

- NOTE -

A squealing noise may be heard when engaging or disengaging the deck drive. It is caused by the electric clutch plates meshing as the mower comes up to speed. This is normal.

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

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

Section 4

HILLSIDE OPERATION4.7

WARNING

This mower has been designed for good traction 1. and stability under normal mowing conditions. However, caution must be used when traveling on slopes, especially when the grass is wet. Wet grass reduces traction and steering control. The Roll-Over Protection System is standard equipment for this machine. See Section 2.5, page 6 of this manual for further details.

AFTER OPERATION4.9

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

- IMPORTANT -

Do not wash a hot or running engine. Cold water will damage the engine. Use compressed air to clean the engine if it is hot.

Keep the entire mower clean to inhibit serious heat

2. damage to the engine or hydraulic oil circuit.

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

DANGER

To avoid injury from burns, allow the mower to cool before removing the LP tank.

To prevent tipping or loss of control, do not start or 2. stop suddenly, avoid unnecessary turns and travel at reduced speed. If tires loose traction, disengage blades and proceed slowly off the slope.

Stay two cut widths away from slopes, drop offs, 3. ditches and retaining walls.

Avoid sudden starts when mowing uphill. Sudden

4. starts may cause the machine to tip backwards.

Loss of traction may occur when traveling down hill. Weight transfers to the front of the machine and may cause the drive wheels to slip causing loss of braking or steering.

Keep tires properly inflated.6.

PARKING THE MOWER4.8

Park the machine on a flat, level surface only. Do not 1. park the machine on an incline.

Place the steering control levers in the neutral 2. position.

Disengage the cutter blades.

Slow the engine to idle speed.4.

Engage the parking brake.5.

See Engine Owner's Manual for proper liquid propane requirements.

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

REMOVING CLOGGED MATERIAL4.10

DANGER

ROTATING BLADES

NEVER PUT YOUR HANDS INTO THE DISCHARGE CHUTE FOR ANY REASON!

Shut off the engine and remove the key and only then use a stick or similar object to remove material if clogging has occurred.

If the discharge chute becomes clogged, shut off the engine and remove the ignition key. Using a stick or similar item, dislodge the clogged material. Then resume normal mowing.

Turn the ignition key to the OFF position and remove 6. the key.

Section 4

390S141-1

DUMP VALV E CONTROL

CUTTING

HEIGHT

5.5

4.5

3.5

2.5

1.5

390S0140-2

HEIGHT ADJUSTMENT PEDAL

LANYARD PIN

MOVING MOWER WITH ENGINE 4.11

STOPPED

To “free-wheel” or move the mower around without the engine running, rotate the dump valve levers counterclockwise. See Figure 4-4. Disengage the parking brake and move the mower by hand. When the machine is in the desired position, engage the parking brake and rotate the levers clockwise until they stop. The dump valve levers must be returned to the DRIVE position and torqued to 10 lb-ft to drive the mower.

Keep mower and discharge chute clean.

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

Use a slow travel speed for trimming purposes.6.

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

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

ADJUSTING CUTTING HEIGHT4.13

The mower deck can be adjusted from a height of 1.0 inch to 6.0 inches at 1/4-inch intervals. To adjust the cutting height:

Dump Valve ControlFigure 4-4.

RECOMMENDATIONS FOR MOWING4.12

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

WARNING

DO NOT operate without Discharge Chute, Mulching Kit, or entire Grass Catcher properly installed.

The discharge chute must not be removed and 2. must be kept in the lowest position to deflect grass clippings and thrown objects downward. Direct the side discharge away from sidewalks or streets to minimize cleanup of clippings. When mowing close to obstacles, direct the discharge away from the obstacles to reduce the chance of property damage by thrown objects.

WARNING

DO NOT adjust the cutting height with the mower blades rotating. Disengage the power to the cutter blades and then adjust cutting height.

Disengage the power to the cutter blades.

Push the cutting height adjustment foot pedal all 2. the way forward using your right foot until it locks in place. See Figure 4-5.

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

Adjusting Cutting HeightFigure 4-5.

Insert the lanyard pin into the cutting height index at 3.

CUTTING

HEIGHT

5.5

4.5

3.5

2.5

1.5

481543

390S0151-1

DECK RELEASE LEVER

TENSION KNOB

ROTAT E LEVER

CUTTING

HEIGHT

5.5

4.5

3.5

2.5

1.5

481

390S0140-2

HEIGHT ADJUSTMENT PEDAL LOCATIONS

the desired cutting height. Push forward on the deck lift foot lever, hold in place and pull back on the deck release lever. See Figure 4-6. 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. See Figure 4-5.

Section 4

Adjusting Steering LeversFigure 4-7.

The control handle can also be adjusted in two different positions. If necessary, remove the two bolts securing the control handle to the control lever. Install the handle in the desired position.

Deck Release LeverFigure 4-6.

ADJUSTING THE STEERING LEVERS4.14

Position the seat to the desired location.1.

While in the operator's position without the engine 2. running, move both steering levers forward and reverse to check for full function control and comfort.

If adjustment of the steering levers is needed, use 3. the following instructions to adjust.

A. Loosen the tension knob on the lever assembly.

B. Rotate the steering lever forward or backward to achieve the optimum operating position.

C. Tighten the tension knob and repeat on the opposite side.

D. While in the operator's position, bring the steering levers out of the neutral lock position and check to make sure both levers are even before operating.

ADJUSTING THE HEIGHT ADJUST 4.15

PEDAL

Position the seat to the desired location.1.

While in the operator's position with out the engine 2. running, push down on the height adjust pedal to check for full function control.

The height adjust pedal can be located in three (3) 3. different positions for operator comfort and control. See Figure 4-8.

Height Adjust Pedal LocationsFigure 4-8.

Section 4

TOWING (OPTIONAL HITCH 4.16

ACCESSORY)

NEVER allow children or others in or on towed 1. equipment.

Tow only with a machine that has a hitch designed

for towing. Do not attach towed equipment except at the hitch point.

Follow manufacturer's recommendations for weight 3. limit for towed equipment. 250 lbs. maximum towing weight.

NEVER tow on slopes. The weight of the towed equipment may cause loss of traction and loss of control.

Travel slowly and allow extra distance to stop.5.

Zero-turning with a trailer attached could cause 6. damage to the trailer or mower.

Width of Deck

SGB020

Width of Deck

SGB018

Width

Deck

Width

Deck

SGB019

TROUBLESHOOTING CUTTING CONDITIONS

CONDITION CAUSE CURE

Section 5

STRINGERS - OCCASIONAL BLADES OF UNCUT GRASS

STR E A K ING - STRIP S O F UNCUT GRASS IN CUTTING PATH

Low engine RPM Run engine at full RPM

Ground speed too fast Slow speed to adjust for conditions

Wet grass Cut grass after it has dried out

Dull blades, incorrect sharpening Sharpen blades

Deck plugged, grass accumulation Clean underside of deck

Belts slipping Adjust belt tension

Dull, worn blades Sharpen blades

Incorrect blade sharpening Sharpen blades

Low engine RPM Run engine at full RPM

Belt slipping Adjust belt tension

Deck plugged, grass accumulation Clean underside of deck

STR E A K ING - STRIP S O F UNCUT GRASS BETWEEN CUTTING PATHS

Ground speed too fast Slow speed to adjust for conditions

Wet grass Cut grass after it has dried out

Bent blades Replace blades

Not enough overlapping between rows Increase the overlap of each pass

Section 5

Width of Deck

SGB020

Width of Deck

SGB021

Width of Deck

SGB023

TROUBLESHOOTING CUTTING CONDITIONS (CONT'D)

CONDITION CAUSE CURE

U N E V E N C U T O N F L AT GROUND - WAVY HIGH-LOW APPEARANCE, SCALLOPED CUT, OR ROUGH CONTOUR

UNE V EN CUT ON UNEVE N GROUND - WAVY APPEARANCE, HIGH-LOW SCALLOPED CUT, OR ROUGH CONTOUR

Lift worn from blade Replace blade

Blade upside down Mount with cutting edge toward ground

Deck plugged, grass accumulation Clean underside of deck

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

Deck mounted improperly See your authorized SCAG dealer

Bent spindle area See your authorized SCAG dealer

Dull blade Sharpen blade

May need to reduce ground speed, raise

Uneven ground

cutting height, and/or change direction of cut

SLOPI N G R I D GE AC ROSS WIDTH OF CUTTING PATH

Tire pressures not equal Check and adjust tire pressure

Wheels uneven Check and adjust tire pressure

Deck mounted incorrectly See your authorized SCAG dealer

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

Width of Deck

SGB022

Width of Deck

SGB024

Width of Deck

SGB025

TROUBLESHOOTING CUTTING CONDITIONS (CONT'D)

CONDITION CAUSE CURE

Section 5

SCALPING - BLADES HITTING DIRT OR CUTTING VERY CLOSE TO THE GROUND

STEP CUT - RIDGE IN CENTER OF CUTTING PATH

Low tire pressures Check and adjust pressures

Ground speed too fast Slow speed to adjust for conditions

May need to reduce ground speed, raise

Cutting too low

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

May need to reduce ground speed, raise

Rough terrain

cutting height, and/or change direction of cut

Ground speed too fast Slow speed to adjust for conditions

Wet grass Cut grass after it has dried out

Blades not mounted evenly Adjust pitch and level

Bent blade Replace blade

Internal spindle failure See your authorized SCAG dealer

SLOPE CUT - SLOPING RIDGES ACROSS WIDTH OF CUTTING PATH

Mounting of spindle incorrect See your authorized SCAG dealer

Bent spindle mounting area See your authorized SCAG dealer

Internal spindle failure See your authorized SCAG dealer

Bent deck housing See your authorized SCAG dealer

Section 6

390S0152-1

LOOSEN HERE

2" to 2-1/4" Clearance

LOOSEN HERE

1/8"

ADJUSTMENTS

PARKING BRAKE ADJUSTMENT6.1

WARNING

Do not operate the mower if the parking brake is not operable. Possible severe injury could result.

The parking brake linkage should be adjusted whenever the parking brake lever is placed in the “ENGAGE” position and the parking brake will allow the mower to move. If the following procedures do not allow you to engage the parking brake properly, contact your Scag dealer for further brake adjustments.

Position a floor jack under the rear of the machine. 1. 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.

With the brake lever in the disengaged position,

2. 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.

- NOTE -

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

Brake AdjustmentFigure 6-1.

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

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.

If the distance is not at the specified measurement,

5. loosen the jam nut at the clevis on the top of the brake actuator rod. See Figure 6-2.

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

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

Replace the drive wheels and test the brake.8.

Brake Rod AdjustmentFigure 6-2.

TRAVEL ADJUSTMENTS6.2

390S0149

CONTROL

ROD

LOOSEN

HERE

STT99RHCRA

LOOSEN HERE

ADJUST HERE

390S0147

LOOSEN

HERE

390S0146

LOOSEN HERE

ADJUST HERE

Neutral or tracking adjustments will need to be made if:

A. The steering control levers are in the neutral position and the machine creeps forward or backward. (Neutral Adjustment, See Below).

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 25).

NEUTRAL ADJUSTMENT

Section 6

Be sure the dump valve levers are in the run position 1. and the steering control levers are in the neutral lock position.

With an operator in the seat, start the engine and disengage the parking brake.

Run the engine at full operating speed and check if 3. the machine creeps forward or backwards.

Adjust the RH wheel by loosening the jam nuts on 4. the steering control rod and turning the rod until the drive wheel turns in the forward direction. Turn the rod back until the drive wheel stops moving. Turn the rod an additional 1/2 turn. (See Figure 6-3).

RH Steering Control Rod AdjustmentFigure 6-3.

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

LH Steering Control Rod AdjustmentFigure 6-4.

Section 6

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

Check that the drive wheels remained in neutral and

7. readjust if necessary.

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

TRACKING ADJUSTMENT

CAUTION

Stop the engine and remove the key from the ignition before making any adjustments. Wait for all moving parts to come to a complete stop before beginning work.

- 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 24.

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:

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, page 24)

- 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 24.

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 plus pivot freely and that the tire pressure in the drive wheels is correct. If the tire pressure is not correct, the machine will pull to the side with the lower pressure.

If at full speed the mower pulls right, it is an

1. indication that the left wheel is turning faster than the right wheel. To adjust this condition, proceed as follows:

A. Stop the machine and place the steering control levers in the neutral position. Loosen the lock nuts securing the ball joints at each end of the LH steering control rod. Rotate the control rod to lengthen the rod and tighten the lock nuts. This will cause the control rod to stroke the LH pump less, slowing down the LH wheel. (See Figure 6-4, page 24)

THROTTLE CONTROL AND CHOKE 6.3

ADJUSTMENTS

These adjustments must be performed by your Scag dealer to ensure proper and efficient running of the engine. Should either need adjustment, contact your authorized Scag service center.

BELT ADJUSTMENT6.4

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 springs should be checked periodically for proper alignment and wear.

BELT ALIGNMENT6.5

LOOSEN HERE

ADJUST HERE

390S0174-1

JAM NUT ADJUST HERE

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

Loosen the two (2) elastic stop nuts. Adjust the bolt up or down on the adjustment bracket 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.

Tighten the two elastic stop nuts to secure the cutter

3. deck in the proper position.

CUTTER DECK ADJUSTMENTS6.6

Cutter deck level, pitch and height are set at the factory. However, if these adjustments should ever need to be made, the following procedures will aid in obtaining the proper cutter deck adjustment.

- NOTE -

Before proceeding with the cutter deck adjustments, be sure 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:

CUTTER DECK PITCH

The pitch of the cutter deck should be equal between the front and rear of the cutter deck for proper cutting performance. To check for proper deck pitch, be sure that the mower is on a flat, level surface and the tires are properly inflated.

Check the distance from the bottom of the cutter deck to the floor at the rear RH side of the cutter deck directly behind the cutter deck hanging chains. Next check the distance from the bottom of the cutter deck to the floor at the front RH side of the cutter deck directly in front of the cutter deck hanging chains. The measurement at the front of the cutter deck should be equal to 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 equal, the cutter deck pitch must

be adjusted as follows:

Loosen the jam nut on both adjusting rods. (See Figure 6.6)

On the front LH side of the cutter deck locate the 1. cutter deck level adjusting bracket (See Figure 6.5)

Cutter Deck Level AdjustmentFigure 6-5.

Cutter Deck Level AdjustmentFigure 6-6.

Using a wrench on the jam nut (See Figure 6.6) turn 2. the adjusting rods until the proper pitch is obtained on both the RH and the LH side of the cutter deck. Tighten both jam nuts.

Section 6

390S014A-2

CUTTING

HEIGHT

5.5

4.5

3.5

2.5

1.5

HEIGHT ADJUSTMENT PEDAL

LANYARD PIN

LOOSEN HERE

1/4"

DECK STOP

390S0175-1

- NOTE -

To prevent the cutter deck from teetering, all four (4) 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.

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.

Place the cutter deck in the transport position. 1. Loosen the jam nuts on both ends of the deck height control rod. (See Figure 6.7)

Cutter Deck Height AdjustmentFigure 6-7.

Cutter Deck StopFigure 6-8.

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

Check the measurement from the floor to the 4. cutter blade tip. If the measurement is not at 3", an adjustment can be made using the deck height control rod. (See Figure 6.7)

- NOTE -

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

Turn the control rod (See Figure 6.7) until there is a 2. 1/4" space between the rear deck stop and the top of the cutter deck. (See Figure 6.8). Tighten the jam nuts on the control rod.

Section 6

A B

Custom-Cut Baffle Adjustment

Mounting Slot Selected Mounting Hardware Location

Slot “A” Hole 1 Hole 2 Hole 3 Hole 4 Height (inches) 3-3/4” 4-1/4” 4-3/4” 5-1/4”

Slot “B” Hole 2 Hole 3 Hole 4 Height (inches) 3-1/2” 4” 4-1/2”

CUSTOM-CUT BAFFLE ADJUSTMENT

The Custom-Cut Baffle is designed to deliver optimum airflow and superior cutting performance in any type of grass. The Custom-Cut Baffle can be raised or lowered to precisely tailor the deck's performance for the type of grass being cut. The baffle can be set in seven (7) different positions for optimum performance.

A. 3-1/2" or 3-3/4" Position - (See Figure 6-9). For very tall, wiry or tough-to-cut grass.

B. 4" (factory setting), 4-1/4" or 4-1/2" Position - (See Figure 6-9). For general purpose cutting. This gives the best mix of cutting performance in all types of grass.

C. 4-3/4" or 5-1/4" Position - (See Figure 6-9). Placing the baffle in either the 4-3/4" or 5-1/4" setting will enhance fall cutting (leaf pickup) and reduce cutter

deck "blowout".

To adjust the Custom-Cut Baffle height:

Place the cutter deck in the transport position.

Remove the hardware securing the Custom-Cut 2. Baffle to the cutter deck.

- NOTE -

Hardware location used in the illustrations are for reference only. Location of hardware may vary depending on cutter deck size.

Move the Custom-Cut Baffle to desired position. (See Figures 6-9).

Reinstall the mounting hardware. Torque hardware to

4. 39 ft-lbs.

Custom-Cut Bafﬂe AdjustmentFigure 6-9.

Section 6

INSPECTION WINDOW (x3)

INSERT 0.015 FEELER GAUGE HERE

ADJUSTMENT NUTS

ELECTRIC CLUTCH ADJUSTMENT6.7

The electric clutch serves two functions in the operation of the mower. In addition to starting and stopping the power flow to the cutter blades, the clutch also acts as a brake to assist in stopping blade rotation when the PTO is switched off or the operator presence circuit is interrupted.

When the clutch is disengaged, the air gap between the armature and rotor must be adjusted to fifteen thousandths of an inch, 0.015, for proper operation. The airgap adjustment is made at three bolts on the clutch. There are three inspection windows, one next to each adjusting bolt. See Figure 6-10.

Clutch Air Gap AdjustmentFigure 6-10.

Locate the inspection windows on the clutch.1.

Place a 0.015 feeler gauge in the slot between the 2. rotor and the armature. See Figure 6-11.

Clutch Air Gap AdjustmentFigure 6-11.

Tighten or loosen the adjusting bolt as needed to 3. acheive the 0.015 inch airgap. See Figure 6-12. Perform this operation at all three inspection windows.

Clutch Air Gap AdjustmentFigure 6-12.

This adjustment should be done every 500 hours of operation or annually, whichever comes first. In cases where the machine is heavily used, airgap settings should be checked more often.

If the air gap is too narrow, the clutch armature may drag when disengaged, resulting in premature failure.

If the air gap is too wide, the clutch may be slow to engage as the magnet must pull the armature in from a greater distance.

MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS7.1

BREAK-IN (FIRST 10)

Section 7

MAINTENANCE

HOURS

PROCEDURE COMMENTS

8 40 100 200 500

Check all hardware for tightness

Check hydraulic oil level See paragraph 7.3

C h e ck al l b e l t s f o r p r o p e r alignment

Change engine oil and filter See paragraph 7.4

Check coolant level See paragraph 7.11

Check hydraulic fittings and hoses for leaks

Check LPG fuel system for leaks See Engine Owner's Manual

Check engine oil level See paragraph 7.4

*Clean mower See paragraph 7.12

Check condition of blades See paragraph 7.9

Apply grease to fittings See paragraph 7.2

Check tire pressure See paragraph 7.10

Ins p e c t s eat be l t fo r we a r o r damage

Che c k the op e rat o r in t e r l o ck system

Ch eck bat tery condition, c lean battery posts and cables

Check belts for proper alignment See paragraph 7.8

See paragraph 7.8

Use extreme caution when checking the hydraulic hoses. See paragraph 2.6

See paragraph 2.5

See paragraph 4.2

See paragraph 7.7

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

Apply grease to fittings See paragraph 7.2

Change engine oil See paragraph 7.4

*Clean air cleaner element See paragraph 7.6

Che ck l u bricant i n cutt e r deck gearbox

See paragraph 7.11

Section 7

MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS (CONT'D)

HOURS

BREAK-IN (FIRST 10)

8 40 100 200 500

Apply grease to fittings See paragraph 7.2

PROCEDURE COMMENTS

Check hardware for tightness

Change engine oil filter See paragraph 7.4

Check hydraulic oil level See paragraph 7.3

Replace engine fuel filter See paragraph 7.5

Drain hydraulic system and replace

hydraulic oil

Replace hydraulic oil filter See paragraph 7.3

Rep l a c e c utt e r deck g e arb ox

lubricant

Use SAE 20W50 Motor Oil. See paragraph 7.3

See paragraph 7.11

LUBRICATION7.2

GREASE FITTING LUBRICATION CHART (SEE FIGURE 7-1)

LOCATION LUBRICATION INTERVAL LUBRICANT

1 Caster Wheel Pivot * 500 Hours/Yearly Chassis Grease 2

2 Caster Wheel Bearings 100 Hours/Monthly Chassis Grease 2

3 Brake Actuator 200 Hours/Monthly Chassis Grease 2

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

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

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

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

8 Brake Handle 200 Hours/Monthly Chassis Grease 1

9 Cutter Deck Drive Shaft U-Joints 200 Hours/Monthly Chassis Grease 2

10 Cutter Deck Drive Shaft Slip Sleeve 40 Hours/Weekly Chassis Grease 1

NO. OF

PLACES

+ 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 Timken Lithium Multi-Use #2 found at industrial shops

* PROCEDURE: Remove grease cap, part number 481559. Remove plug, part number 482028-01, and install grease zerk. Apply grease to the fitting until new grease appears at the top of the caster extension. Remove the grease zerk and reinstall the plug. Reinstall the grease cap. Special tool, part number 47007, is recommended for use in the installation of the grease cap.

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 )

STT-25CH-LP Grease Points

4 3

Lubrication Fitting PointsFigure 7-1.

Section 7

390S0155-1

HYDRAULIC OIL FILTER

Hydraulic Oil Reservoir

2007 STT HOR

HYDRAULIC SYSTEM7.3

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.

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

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

- IMPORTANT -

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

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

Place a suitable container under the hydraulic oil 2. filter. Remove the fill cap from the reservoir and the drain plug from the bottom of the drain tee fitting on the filter base. See Figure 7-3. Allow the fluid to drain into the container and properly discard it.

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

Hydraulic Oil ReservoirFigure 7-2.

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.

Hydraulic Oil FilterFigure 7-3.

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

- NOTE -

Before refilling the hydraulic oil reservoir the hydraulic oil filter should be changed as outlined in Procedure C "Changing Hydraulic Oil Filter Element" on page 34.

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

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

STT99CEC

ENGINE OIL FILTER

DRAIN PLUG

C. CHANGING HYDRAULIC OIL FILTER

390S0156

ENGINE OIL

DIPSTICK

ELEMENT

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

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

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

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

Section 7

Drain Plug LocationFigure 7-5.

ENGINE OIL7.4

Engine Dipstick LocationFigure 7-4.

A. CHECKING ENGINE CRANKCASE OIL LEVEL

The engine oil level should be checked after every 8 hours of operation or daily as instructed in the Engine Operator’s Manual furnished with this mower.

C. CHANGING ENGINE OIL FILTER

After the first 20 hours of operation, replace the engine oil filter. Thereafter, replace the oil filter after every 200 hours of operation or every month, whichever occurs first. Refer to Engine Operator’s Manual for instructions.

ENGINE FUEL SYSTEM7.5

DANGER

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

A. LPG FUEL SYSTEM

Maintenance must be performed to the LPG fuel system after 1000 hours of operation or annually, whichever occurs first. Contact your authorized Scag service center for details and maintenance. See Engine Owner's manual for service information

B. CHANGING ENGINE CRANKCASE OIL

After the first 20 hours of operation, change the engine crankcase oil and replace the oil filter. Thereafter, change the engine crankcase oil after every 100 hours of operation or bi-weekly, whichever occurs first. Refer to the Engine Operator’s Manual furnished with this mower for instructions.

Secure loose cylinders when transporting. Transport 1. in the upright position.

Fill at a reputable dealer.2.

Do not store tanks (empty or filled) inside any 3. building or enclosed trailer.

Turn off valve at tank during machine storage.4.

Section 7

WARNING

DO NOT overﬁll. Follow approved procedures for ﬁlling.

This cylinder is designed to contain LP Gas; a ﬂammable liquid and gas under pressure.

DO NOT expose to ﬁre or heat above 120 degrees Farenheit.

ENGINE AIR CLEANER7.6

A. CLEANING AND/OR REPLACING AIR CLEANER ELEMENT

For any air cleaner, the operating environment dictates the air cleaner service periods. Inspect and clean the air cleaner element after every 100 hours of operation or bi-weekly, whichever occurs first and replace the element if required. See Engine Owner's Manual for service information.

Be sure all ﬁttings are tight and leak proof.

DO NOT attempt repairs. Contact an authorized LP Gas Dealer.

Cylinder must be retested within 12 years of manufacture date.

CAUTION

It is important that anyone who changes or uses this cylinder be aware of its dangerous potential and use it only in compliance with all applicable governmental regulations including NFPA No.58

Cylinders that show excessive denting, bulging, 5. gouging or corrosion shall be removed from service.

Do not dispose of cylinders without assistance of 6. qualified propane personnel.

Replacement cylinders must meet requirements of 7. original cylinders.

Refuel outdoors.8.

- NOTE -

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

Unhook the clamps securing the air cleaner cover to the air filter canister. Remove the air cleaner cover and set aside.

Remove the air cleaner and inspect.2.

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

Replace the air cleaner cover and be sure to snap the latches closed.

BATTERY7.7

WARNING

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

WARNING

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

WARNING

Electric storage battery ﬂuid contains sulfuric acid which is POISON and can cause SEVERE CHEMICAL BURNS. Avoid contact of ﬂuid with eyes, skin, or clothing. Use proper protective gear when handling batteries. DO NOT tip any battery beyond 45° angle in any direction. If ﬂuid contact does occur, follow ﬁrst aid suggestions below.

Section 7

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

WARNING

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

Charging rates between 3 and 50 amperes are satisfactory if excessive gassing or spewing of electrolyte does not occur or the battery does not feel excessively hot (over 125°F). If spewing or gassing occurs or the temperature exceeds 125°F, the charging rate must be reduced or temporarily stopped to permit cooling.

B. JUMP STARTING

BATTERY ELECTROLYTE FIRST AID

External Contact — Flush with water.

Eyes — Flush with water for at least 15 minutes and get medical attention immediately.

Internal — Drink large quantities of water. Follow with Milk Of Magnesia, beaten egg, or vegetable oil. Get medical attention immediately. In case of internal contact, DO NOT give ﬂuids that would induce vomiting.

A. CHARGING THE BATTERY

Re fer to t he bat tery c harger ’s manual for specif ic 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.

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

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

DRIVE BELTS7.8

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.

DO NOT charge a frozen battery. It may explode and cause injury. Let the battery warm before attaching a charger.

Section 7

SGB033

Angle Blade Back

Do Not Cut In

X Must NOT Exceed

1/3 Blade Width

CUTTER BLADES7.9

A. BLADE INSPECTION

Remove the ignition key before servicing the blades.1.

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

WARNING

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

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

Check the cutter blades for straightness. If the cutter

3. blades appear bent, they will need to be replaced.

WARNING

Do not attempt to straighten a bent blade, and never weld a broken or cracked blade. Always replace it with a new blade to assure safety.

If a blade cutting edge is dull or nicked, it should be 4. sharpened. Remove the blades for sharpening. See "Blade Replacement."

- NOTE -

Keep the blades sharp. Cutting with dull blades not only yields a poor mowing job, but slows the cutting speed of the mower and causes extra wear on the engine and the blade drive by pulling hard.

B. BLADE SHARPENING

- NOTE -

Blade SharpeningFigure 7-6.

Check the balance of the blade. If the blades are out 2. of balance, vibration and premature wear can occur. See your authorized Scag dealer for blade balancing or special tools, if you choose to balance your own blades.

C. BLADE REPLACEMENT

WARNING

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

Remove the ignition key before replacing the blades.

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

Secure the cutter blades to prevent them from

3. rotating, (use the optional Blade Buddy tool P/N 9212, to assist in securing the cutter blades), remove the nut from the blade attaching bolt. Remove the cutter blade, bolt and spacer from the spindle shaft. See Figure 7-7.

If possible, use a file to sharpen the blade. Using a wheel grinder may burn the blade.

- NOTE -

DO NOT sharpen the blades beyond 1/3 of the width of the blade. See Figure 7-6.

- NOTE -

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

To install the new cutter blade, put the flat washer

4. onto the blade bolt and slide the bolt into the hole in the cutter blade.

Section 7

WASHER

HEX HEAD BOLT

CUTTER

BLADE

SPINDLE ASSEMBLY

CUTTER BLADE

SPACER

HEX HEAD

BOLT / NUT

CUTTER

DECK

SPINDLE SHAFT

HEX NUT-TORQUE TO 75 LB-FT

390S0161

CUTTER DECK

GEARBOX

CHECK PLUG

CUTTER DECK GEARBOX7.11

A. CHECKING LUBRICANT LEVEL

CAUTION

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

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

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

Clean and remove the check plug from the side of the gearbox. See Figure 7-8.

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

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

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

TIRES7.10

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

Caster Wheels Flat Free Drive Wheels 12 PSI

Blade ReplacementFigure 7-7.

- NOTE -

Cutter Deck GearboxFigure 7-8.

Visually check that the lubricant level is up to the 3. 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.

Section 7

B. CHANGING LUBRICANT

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

Place a suitable container beneath the cutter deck

1. gearbox and locate the gearbox drain plug.

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

Re-install the drain plug and add SAE 80W90 3. 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.

BODY, DECK, AND UPHOLSTERY7.12

CAUTION

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

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

Do not spray electrical components.2.

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

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

ILLUSTRATED PARTS LIST

SCAG APPROVED ATTACHMENTS AND 8.1

ACCESSORIES.

Attachments and accessories manufactured by companies other than Scag Power Equipment are not approved for use on this machine.

Scag approved attachments and accessories:

Mulch Plate (p/n 9287, 9288)•

Hurricane Mulch (p/n 9284, 9285)•

STT Hitch (p/n 9242)•

STT Bumper (p/n 9256)•

STT Lights (p/n 9279)•

Tiger Striper (p/n 9269)•

Blade Buddy (p/n 9212)•

STT-OCDC-52V (p/n 921B)•

STT-OCDC-61V (p/n 921C)•

Section 8

NOTES

52V CUTTER DECK

44 61 63

14 29 20

2852

51 23

STT 2008 CD

70 71

Section 8

52V CUTTER DECK

Ref.

Part No. Description

No.

461859

04003-40

04019-04

481625-01

481632

04003-26

422478

04017-27

04043-06

04021-05

461845

04001-11 04001-12

04021-22

04020-09

451240

04001-41

04003-12

04001-108

04063-08

04063-01

04043-04

04001-176

04019-03

04001-172

48100-15

04030-03

04040-15

04041-07

04021-09

04001-62

04001-54

04001-20

04001-136

461663

43589

481024

481022

43644

43312

43296

481025

43297

481035

48114-04

48677

Cutter Deck Velocity Plus Bolt, Carriage 7/16-14 x 1-1/4” Nut, Hex Serr. Flng 3/8-16 Wing nut, 3/8-16 Anti-Scalp Wheel Bolt, Carriage 3/8-16 x 4” Anti-Scalp Wheel Bracket Bolt, Hex Serr. Flng 3/8-16 x 1” Flatwasher, 5/8” Hardened Locknut, 3/8-16 Center Lock Discharge Chute Bolt, Hex Head 5/16-18 x 1-3/4” - Front Bolt, Hex Head 5/16-18 x 1-1/2” - Rear Nut, Hex Elastic Stop 5/16-18 Grd 8 Nut, 5/8-11 UNC Push Arm Shaft Bolt, HH 5/8-11 x 9-1/2” Bolt, Carriage 5/16-18 x 3/4” Bolt, HH 5/16-18 x 4-1/2” Key, 1/4 x 1/4 x 2” Key, 1/4 x 1/4 x 1-1/4” Flatwasher,3/8” (.39 x .938 x .105”) HD Bolt, HH 5/16-18 x 1-3/4” Nut, Hex Serr. Flng 5/16-18 Bolt, HH 1/4-20 x 1” Grd 8 Bushing, .376” I.D. Oilite Lockwasher, 5/16” Flatwasher, 5/16” (.375 x .875 x .083”) Flatwasher, 3/8” (.391 x .938 x .105”) Nut, Hex Elastic Stop 3/8-16 Bolt, HH 3/8-16 x 3-1/4” Bolt, HH 3/8-16 x 3” Bolt, HH 3/8-16 x 1-1/2” Bolt, HH 3/8-16 x 1-1/2” Grd 8 Spindle Assembly Spindle Shaft Seal, Top Bearing Assembly Spindle Housing Spacer, Outside Spacer, Inside Seal, Bottom Spindle Bushing, Bottom Nut, Special 1-1/16-18 Grease Fitting Relief Fitting, Tapered Spindle

Ref.

Part No. Description

No.

483378

482295

482878

482486

482281

45944

48926

48141

461842

48224

483215

461929

482744

424798

422412

461516

43590

04020-16

48763

04001-79

483704

482747

04110-03

04021-13

424208

43503

424840

04003-23

04040-11

04021-11

483167

04003-12

04040-04

04021-04

483176

48038

04021-10

43763

424799

04001-154

Spring, Discharge Chute Wheel, Anti-Scalp Cutter Blade, 18” Gearbox Assm, Deck Drive Belt, Cutter Deck Drive Roller Shaft Tapered Hub, 1-1/8” Bore Tapered Hub, 1” Bore Idler Arm, Cutter Deck Bearings, Ball Pulley, Idler Lever Assembly, Deck Level (Incl. 77) Pulley, 5.75” O.D. (52”) Mounting Plate, RH Gearbox Belt, Cover Pusharm (includes items 44, 63 & 64) Spacer, Spindle Bottom Nut, Hex Head 5/8-18 UNF Rod End, 5/8” Male RH Thrd Bolt, Hex Head 5/8-11 x 4-1/2” Spring, Cutter Deck Pulley, 6.95” O.D. U-Nut, 3/8-16 Nut, Hex Elastic Stop 5/8-11 Discharge Bafﬂe 52V Pivot, Idler - Short Bafﬂe, Custom Cut 52V Bolt, Carriage 3/8-16 x 1” Flatwasher, 7/16” (.500 x 1.25 x .083”) Nut, Elastic Stop 7/16-14 Bolt, Deck Adjust Bolt, Carraige 5/16-18 x 3/4” Flatwasher, 5/16” Nut, Center Lock 5/16-18 Wear Pad Wheel, Anti-Scalp Nut, Elastic Stop 5/16-18 Spacer, Gearbox Mount Mounting Plate, LH Gearbox Bolt, HH 5/16-18 x 4-3/4”

61V Cutter Deck

44 61 63

14 29 20

2852

51 23

STT-EFI 2008 CD

Section 8

61V Cutter Deck

Ref. No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

Part No. Description

461863 04003-40 04019-04 481625-01 481632 04003-26 422478 04017-27 04043-06 04021-05 461846 04001-12 04021-22 04020-09 451240 04001-41 04003-12 04001-108 04063-08 04063-01 04043-04 04001-176 04019-03 04001-172 48100-15 04030-03 04040-15 04041-07 04021-09 04001-62 04001-54 04001-20 04001-136 461663 43589 481024 481022 43644 43312 43296 481025 43297 481035 48114-04 48677

Cutter Deck Velocity Plus Bolt, Carriage 7/16-14 x 1-1/4” Nut, Hex Serr. Flng. 3/8-16 Wing Nut, 3/8-16 Anti-Scalp Wheel Bolt, Carriage 3/8-16 x 4” Anti-Scalp Wheel Bracket Bolt, Hex Serr. Flng. 3/8-16 x 1” Flatwasher, 5/8” Hardened Locknut, 3/8-16 Center Lock Discharge Chute Bolt, Hex Hd. 5/16-18 x 1-1/2” - Rear Nut, Hex Elastic Stop 5/16-18 Grd. 8 Nut, 5/8-11 UNC Pusharm Shaft Bolt, Hex Hd. 5/8-11 x 9-1/2” Bolt, Carriage 5/16-18 x 3/4” Bolt, Hex Hd. 5/16-18 x 4-1/2” Key, 1/4 x 1/4 x 2” Key, 1/4 x 1/4 x 1-1/4” Flatwasher,3/8 (.39 x .938 x .105”) HD Bolt, Hex Hd. 5/16-18 x 1-3/4” Nut, Hex Serr. Flng. 5/16-18 Bolt, Hex Hd. 1/4-20 x 1” Grd. 8 Bushing, .376” I.D. Oilite Lockwasher, 5/16” Flatwasher, 5/16” (.375 x .875 x .083”) Flatwasher, 3/8” (.391 x .938 x .105”) Nut, Hex Elastic Stop 3/8-16 Bolt, Hex Hd. 3/8-16 x 3-1/4” Bolt, Hex Hd. 3/8-16 x 3” Bolt, Hex Hd. 3/8-16 x 1-1/2” Bolt, Hex Hd. 3/8-16 x 1-1/2” Grd. 8 Spindle Assembly Spindle Shaft Seal, Top Bearing Assembly Spindle Housing Spacer, Outside Spacer, Inside Seal, Bottom Spindle Bushing, Bottom Nut, Special 1-1/16-18 Grease Fitting Relief Fitting, Tapered Spindle

Ref. No.

46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85

Part No. Description

483378 482295 482879 482486 481558 45944 48926 48141 461842 48224 483215 461929 482745 424798 424325 461516 43590 04020-16 48763 04001-79 483704 482746 04110-03 04021-13 04001-154 424209 43503 424841 04003-23 04040-11 04021-11 483167 04003-12 04040-04 04021-04 483176 48038 04021-10 43763 424799

Spring, Discharge Chute Wheel, Anti-Scalp Cutter Blade, 21” Gearbox Assembly, Deck Drive Belt, Cutter Deck Drive Roller Shaft Tapered Hub, 1-1/8” Bore Tapered Hub, 1” Bore Idler Arm, Cutter Deck Bearings, Ball Pulley, Idler Lever Assembly, Deck Level (Incl. 77) Pulley, 6.35” O.D. (61”) Mounting Plate, RH Gearbox Belt, Cover Pusharm (Incl. 44, 63 & 64) Spacer, Spindle Bottom Nut, Hex Hd. 5/8-18 UNF Rod End, 5/8” Male RH Thread Bolt, Hex Hd. 5/8-11 x 4-1/2” Spring, Cutter Deck Pulley, 6.75 O.D. U-Nut, 3/8-16 Nut, Hex Elastic Stop 5/8-11 Bolt, Hex Hd. 5/16-18 x 4-3/4” Discharge Bafﬂe 61V Pivot, Idler - Short Bafﬂe, Custom Cut 61V Bolt, Carriage 3/8-16 x 1” Flatwasher, 7/16 (.500 x 1.25 x .083”) Nut, Elastic Stop 7/16-14 Bolt, Deck Adjust Bolt, Carriage 5/16-18 x 3/4” Flatwasher, 5/16” Nut, Center Lock 5/16-18 Wear Pad Wheel, Anti-Scalp Nut, Elastic Stop 5/16-18 Spacer, Gearbox Mount Mounting Plate, LH Gearbox

CUTTER DECK CONTROLS

STT-28CAT 2008CDC

CUTTER DECK

Section 8

CUTTER DECK CONTROLS

Ref. No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

Part No. Description

481764 04020-28 481766 04050-10 45905 43487 482429 04009-02 48100-14 481428 462102 424857 04014-03 04019-04 423509 04003-04 422381 423463 04001-20 04019 -03 481598 48114-04 43526 04020-09 04040-09 04061-07 45904 48540 04004-48 461929 43527 04021-05 04050-08 04041-14 481547 04067-09 04021-09 424504 04021-07 04030-07 04105-01 481765 04001-74 04020-27 43391

Link, Deck Lift Nut, Jam 1/2-20 LH Rod End, Female - 1/2-20 LH Ring, Retaining 1/2” External “E” Bellcrank Weldment, RH Rear Pin, Decklift Slide Weldment, Height Adjustment Bolt, Shoulder 1/2 x 3/4” Bushing, .502 ID. Grip, Deck Latch Deck Latch (Includes items 9 & 10) Lockplate, Decklift Screw, Cap 5/16-18 x 3” FHHS Nut, Hex Serrated Flange 3/8-16 Guide, Long Bolt, Carriage 5/16-18 x 1” Guide, Short Bracket, Cutting Height Adjustment Bolt, Hex Head 3/8-16 x 1-1/2” Nut, Hex Serrated Flange 5/16-18 Spring, Helper (61” & 72” Cutter Decks Only) Grease Fitting Swivel Joint, LH Nut, Hex 5/8-11 Flatwasher, 5/8” (.656 x 1.312 x .095) Cotter Pin, 3/16 x 1” Bellcrank Weldment, LH Rear Chain Stud, 5/8-11 x 26.0” Lever Assembly, Deck Level Swivel Joint, RH Locknut, 3/8-16 Center Lock Ring, Retaining 1” External “E” Flatwasher, 1” (1.062 x 1.50 x .048) Lanyard, Deck Height Pin Ring Pin, 1/2 x 3.06” Nut, 3/8-16 Elastic Stop Foot Pedal, Height Adjustment Nut, Hex Elastic Stop 1/2-13 Lockwasher, 5/8” Capscrew, 5/8-11 x 1-1/2” Rod End, Female - 1/2-20 RH Bolt, Hex Head 1/2-13 x 3” Nut, Jam 1/2-20 RH Spacer, Decklift Pedal

STT-25CH-LP 2011 SMC

SHEET METAL COMPONENTS

Section 8

SHEET METAL COMPONENTS

Ref. No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

36 37 38

42 43 44 45

Part No. Description

451481 04001-09 483371 482621 491729 424819 04001-117 04019-05 * 48903 421274 04003-12 423308 04029-01 04019-03 04003-01 48661 43584 04003-04 482622 04021-09 462329 04019-04 04017-27 451480 423489 04021-09 04001-19 04001-125 04021-13 481559 04021-20 481657 482028-01 451450 451957 451825 451451 481025 04021-07 45934 451416 04001-134 04001-167 43581 43583 9277 9278 04001-01 04001-01 423674 481284

Fender Weldment, RH Bolt, Hex Head, 5/16-18 x 1, Zinc Spring, Seat Latch Bearing w/ Race Seat Plate w/Decal Guard, Fuel Line Bolt, Hex Head 7/16-14 x 1-3/4” Nut, 7/16-14 Serrated Flange Battery (not avail. through Scag) Pad, Battery Cover Cover, Battery Bolt, Carriage 5/16-18 x 3/4” Plate, Battery Box Wing Nut, 1/4-20 x 3/4” Nut, Hex Serrated Flange 5/16-18 Bolt, Carriage 1/4-20 x 6” Rubber Pad Spacer, Caster Wheel Bolt, Carriage 5/16-18 x 1” Seal Locknut, 3/8-16, Elast. Stop Main Frame w/Decals Nut, Hex Serrated Flange 3/8-16 Screw, Hex Serrated Flange 3/8-16 x 1” Fender Weldment, LH Foot Plate Nut, Hex Elastic Stop 3/8-16 Bolt, Hex Head 3/8-16 x 1” Bolt, Hex Head 5/8-11 x 4” Nut, Hex Elastic Stop 5/8-11 Cap, Grease Nut, Hex Elastic Stop 1.0-14 Bearing W/Race Plug, 1/4-28 THD Form Extention Weldment, Caster 52V (LH) Extention Weldment, Caster 52V (RH) Extention Weldment, Caster 61V (LH) Extention Weldment, Caster 61V (RH) Seal, 2.00” OD. x 1.625” Bore Nut, Hex Elastic Stop 1/2-13 Yoke Weldment, Caster (52V) Yoke Weldment, Caster (61V) Bolt, Hex Head 1/2-13 x 7-1/2” (52V) Bolt, Hex Head 1/2-13 x 9-1/2” (61V) Sleeve, Caster Wheel (52V) Sleeve, Caster Wheel (61V) Wheel Assy, 52V (Incl. items 20, 54, 55) Wheel Assy, 61V, 72A (Incl. 20, 54, 55) Bolt, Hex Head 1/4-20 x 3/4” Bolt, Hex Head 1/4-20 x 3/4” Mounting Bracket, STT Cup Holder Bumper, Rubber

Ref. No.

46 47 48 49 50

51 52 53 54 55

Part No. Description

04050-01 484341 9240 491731 462045

462046

461908

461909

48114-10 425289 04001-02 04019-02 48566

Retaining Ring, .625” Ext. “E” Grip, Seat Latch Cup Holder Assembly Lever Assembly, Seat Release Caster Wheel Assembly (Incl. 31 thru 43) 52V (LH) Caster Wheel Assembly (Incl. 31 thru 43) 52V (RH) Caster Wheel Assembly (Incl. 31 thru 43) 61V (LH) Caster Wheel Assembly (Incl. 31 thru 43) 61V (RH) Grease Fitting Cover, Fuel Tank Opening Bolt, Hex Head 1/4-20 x 1-1/4” Nut, Serrated Flange 1/4-20 Cable, Seat Stop

STT ROLL-OVER PROTECTION SYSTEM

Section 8

STT ROLL-OVER PROTECTION SYSTEM

Ref. No.

1 2 3 4 5 6 7 8 9 10 11

Part No. Description

462210 04001-87 04021-19 04040-13 484168 04001-163 04021-19 484166 484170 484169 484167

STT, ROPS Bolt, Hex Head 1/2-13 x 4” Nut, Center Lock 1/2-13 Flatwasher, 1/2-.562 x 1.375 x .109 Pin Assembly (incl. #9 & #10) Bolt, Hex Head 1/2-13 x 3-3/4” Nut, Center Lock 1/2-13 Stop Bracket, ROPS Spring, ROPS Clip, ROPS Spring Clip, ROPS

STT SUSPENSION SEAT

Section 8

Ref. No.

1 2 3 4 5

6 7

8 9 10

12 13

Part No. Description

9292 04001-178 04040-11 483594 482950 482945 482946 482940 482943 482948 482942 482952 482944 482948 482941

04001-12 483440

Suspension Seat Assembly w/seat belt Bolt, Hex Head 7/16-20 x 1” Flatwasher, 7/16-.500 x 1.25 x .083 Retractable Seat Belt Armrest Only Armrest Assembly Kit, LH Armrest Assembly Kit, RH Back Cushion Kit Lumbar Kit Knob Kit Shock Absorber Kit Seat Adjustment, Track Set Weight Adjustment Kit Knob Kit Seat Cushion Kit Seat Drain Kit (Included with Seat Cushion) Bolt, Hex Head 5/16-18 x 1-3/4" Wire Harness Adapter

Section 8

NOTES

DECK DRIVE COMPONENTS

STT 2005 DDC

Frame

33 32

Section 8

DECK DRIVE COMPONENTS

Ref. No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

Part No. Description

423925 481531 481309 482845 48030-09 461661 482876 483088 48181 481536 482949 481884 483165 483214 483082 43631 04063-14 48224 481284 482745 482667 461609 43632 461697 481035 43297 481025 481022 43312 43296 48114-04 48677 43644 481022 481024 43534 461608 482424 04012-08 04011-11 04041-07 04069-01 43507 452105

04019-04

Belt Guard, Rear Hinge, Belt Guard Latch, Hood Rod Assembly, Clutch Anti-Rotation Clamp, Cable Clutch, Ogura GT-3.5 Belt, Deck Drive Spring, Transmission Idler Pulley, Idler 5” Dia. Tapered Hub, 1” Bore Pulley, 6.70” Tapered Bore Tapered Hub, 17mm Bore Belt, Pump Drive STT Pulley, Idler 4” Dia. Pulley, 4.55” Dia.-1.125” Bore Spacer, Idler Bearing Key, 5.0 x 5.0 x 25mm Ball Bearing Bumper, Rubber Pulley, 6.35” O.D. Spring, PTO Idler Arm Weldment, PTO Drive Pivot, Idler PTO Spindle Assembly, Deck Drive Nut, 1.06”-18 Thread Spindle Bushing, Bottom Seal, 2.0” OD x 1.625” Bore Roller Bearing Tapered Spacer, Outside Spacer, Inside Grease Fitting, 1/4-28 Relief Fitting Spindle Housing Roller Bearing Tapered Seal, 2.0” OD x 1.5” Bore Shaft, Deck Drive Idler Arm Weldment, Pump Drive Driveshaft (Air-Cooled Engine) Set Screw, 3/8-16 x 3/4” Torx Socket Screw, #10-32 x .56” Flatwasher, 3/8 (.391 x .938 x .105”) Pin, Rue Cotter 3/8” Dia. Stud, Anti Rotation Pump Mounting Plate Weldment (STT-25CH-LP) Nut, Serrated Flange 3/8-16

Ref. No.

46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76

Part No. Description

04019-02 04003-07 04021-22 04001-176 04063-06 04001-171 04043-04 04001-135 04001-136 04001-170 04021-05 04001-136 04021-09 04001-45 04001-109 04030-02 04001-101 04030-05 04041-28 04001-172 04001-21 04019-03 04021-09 04001-19 04021-05 04001-21 04063-02 04063-20 424138 43063 04001-19

Nut, Serrated Flange 1/4-20 Bolt, Carriage 1/4-20 x 1/2” Nut, Elastic Stop 5/16-18 Grade 8 Bolt, Hex Head 5/16-18 x 1-3/4” Grade 8 Key, 1/4 x 1/4 x 1-1/2” Bolt, Hex Head 3/8-16 x 4-1/2” Grd 8 Black Washer, 3/8” Hardened Bolt, Hex Head 3/8-16 x 1-3/4” Grd 8 Black Bolt, Hex Head 3/8-16 x 1-1/2” Grd 8 Black Bolt, Hex Head 3/8-16 x 2-1/2” Grd.8 Nut, Center Lock 3/8-16 Bolt, Hex Head 3/8-16 x 1-1/2” Grd 8 Black Nut, Elastic Stop 3/8-16 Bolt, Hex Head 3/8-16 x 2” Bolt, Hex Head 1/4-20 x 1-3/8” Lockwasher, 1/4” Spring Bolt, Hex Head 7/16-20 x 2-1/2” UNF Lockwasher, 7/16” Spring Flatwasher, 7/16 (.469 x 1.75 x .25”) Bolt, Hex Head 1/4-20 x 1” Grade 8 Bolt, Hex Head 3/8-16 x 1-3/4” Nut, Serrated Flange 5/16-18 Nut, Elastic Stop 3/8-16 Bolt, Hex Head 3/8-16 x 1” Nut, Center Lock 3/8-16 Bolt, Hex Head 3/8-16 x 1-3/4” Key, 1/4 x 1/4 x 2-1/4” Key, 1/4 x 1/4 x 1” Bracket Spacer Bolt, Hex Head 3/8-16 x 1”

Section 8

STT 2005 EAPKH

FRAME

REF. PUMP

MTG. WELDMENT

12 10

ENGINE AND ATTACHING PARTS - KOHLER LP

Section 8

ENGINE AND ATTACHING PARTS - KOHLER LP

Ref. No.

Part No. Description

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

422593 04017-05 ** 482510 04110-01 424691 483537 484052** 04001-19 04030-04 04001-21 04021-09 04001-32 451459 04003-12 04019-03

Mufﬂer Guard Screw, Hex Serrated Flange 1/4-20 x 3/4” Mufﬂer, Part Of Engine (Available only through Kohler) Oil Drain Extension U-Nut, 1/4-20 Rear Cover Hour Meter Engine, Kohler 25 CH LP (Available only through Kohler, Eng. Spec. PS-CH730-0220) Bolt, Hex Head 3/8-16 x 1” Lockwasher, 3/8” Spring Bolt, Hex Head 3/8-16 x 1-3/4” Nut, Hex Elastic Stop 3/8-16 Bolt, Hex Head 3/8-16 x 1-1/4” Plate, Engine Mounting Bolt, Carriage 5/16-18 x 3/4” Nut, Hex Serrated Flange 5/16-18

** Available through the individual engine manufacturer.

BRAKE AND STEERING COMPONENTS

STT2006B&SC REV 1

11 21

43 44 45

TO RH PUMP

TO LH PUMP

Section 8

BRAKE AND STEERING COMPONENTS

Ref. No.

1 2

3 4 5 6 7

8 9 10 11 12 13 14 15 16 17 18

19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

36 37 38 39 40 41 42 43 44 45

Part No. Description

482340 461914 461923 04001-09 04030-03 483250 483238 451483 451484 04001-17 04021-10 04001-45 04021-09 423488 48224 43607 04069-01 04001-13 04021-13 461601 461602 04003-04 43600 04003-12 04019-03 04050-01 43602 45918 04003-02 04040-14 04021-08 43477 481389 04060-01 04061-06 482586 04020-25 43629 43624 04020-26 482585 04021-10 482794 04001-187 48114-04 461082 481548 04001-22 04019-06

Grip, Handle Bar Handle Bar, LH (Includes item 1) Handle Bar, RH (Includes item 1) Bolt, Hex Head 5/16-18 x 1” Lockwasher, 5/16” Rubber Spacer Bar, Control Lever Control Lever Weldment, LH Control Lever Weldment, RH Bolt, Hex Head 5/16-18 x 2” Nut, Hex Elastic Stop 5/16-18 Bolt, Hex Head 3/8-16 x 2” Nut, Hex Elastic Stop Mount, Control Linkage Ball Bearings, Neutral Return Spacer Pin, Rue Cotter 3/8” Dia. Bolt, Hex Head, 5/16-18 x 2.75” Zinc Nut, Hex Elastic Stop 5/8-11 Bracket, Control Lever LH Bracket, Control Lever RH Bolt, Carriage 5/16-18 x 1” Spacer, Bearing Bolt, Carriage 5/16-18 x 3/4” Nut, Hex Serrated Flange 5/16-18 Ring, Retaining 5/8” External “E” Spacer Bracket, Neutral Return Bolt, Carriage 1/4-20 x 3/4” Flatwasher, 1/4” (.312 x .750 x .065”) Nut, Hex Elastic Stop 1/4-20 Pin, Retaining Spring Spring Roll Pin, Spring 5/32” x 3/4” Pin, Cotter 9/16” x 1-1/2” Rod End, Male 3/8”-24 RH Thread Nut, 3/8”-24 RH Thread Tube, Control Link Air-Cooled Engine Tube, Control Link Liquid-Cooled Engine Nut, Hex 3/8”-24 LH Thread Rod End, Male 3/8”-24 LH Thread Locknut, 5/16-18, Elastic Stop Gas Damper Bolt, Hex Head 1/2-13 x 2-1/2” Grade 8 Grease Fitting Lever, Parking Brake (Includes item 43) Grip, Parking Brake Bolt, Hex Head 3/8-16 x 2-3/4” Nut, Hex Serrated Flange 1/2-13

Ref. No.

46 47 48 49 50 51 52 53 54 55

57 58 59 60 61 62 63 64 65 66 67 68 69

70 71 72 73 74 75 76 77 78 79 80 81 82

Part No. Description

48343-04 04064-02 04061-02 04004-34 48544 48796 04001-08 04001-147 481637 04010-12

462100 462101 45953 48807 04001-163 04021-19 04001-52 482639 04001-12 483644 04064-16 43063 461438 04063-25 481552 481659 481660 481850 481851 481852 04028-02 48680 422373 04001-20 423279 423491 04017-16 04003-36 04001-19 481638 04001-168 04003-38 483269

Clevis, Traction Control Pin, Clevis 3/8-16 x 1-1/16” Pin, Cotter 3/32 x .75” Rod, Parking Brake Rod End, LH Thread Bushing, Self Align Bolt, Hex Head 5/16-18 x 3/4” Bolt, Hex Hd 3/8-24 x 5-1/4”, 23/4” Thrd Switch Screw, Hex-Slotted Washer Head #10 32 x 3/4” Brake Linkage, LH Brake Linkage, RH Bellcrank, Brake Actuator Spring Bolt, Hex Head 1/2-13 x 3-3/4” Locknut, Hex 1/2-13 Center Lock Bolt, Hex Head 1/2-13 x 2-1/2” Wheel Motor, Ross Bolt, Hex Head, 5/16-18 x 1.75”, Zinc Brake Band Assembly Pin, Clevis 3/8” Dia. x 1.93” Spacer Wheel Hub/Brake Drum Assembly Key, Woodruff 5/16 x 1” Wheel Assembly 23 x 10.5-12 (52” Only) Rim W/Valve Stem (52” Only) Tire, 23 x 10.5-12 (52” Only) Wheel Assembly 24 x 12-12 Turf Master Rim W/Valve Stem Tire, 24 x 12-12 Turf Master Lug Nut, 1/2-20 Nut, Hex Castle Threaded Plate Bolt, Hex Head 3/8-16 x 1-1/2” Plate Weldment, Motor Backing Actuator Switch Bolt, Hex Serrated Flange 5/16-18 x 3/4” Bolt, Carriage 3/8-16 x 4-3/4” Bolt, Hex Head 3/8-16 x 1” Switch Bolt, Hex Head 3/8-16 x 1-1/4” Grade 8 Bolt, Carriage 5/16-18 x 1-1/2” Knob

HYDRAULIC SYSTEM - KOHLER LP

DUMP VALVE

2009 STT-25CH-LP HS.eps

23 24 26 40

34 25 35

21 31

11 12 13

44 45 17

34 25 35

8 20 19

22 41

27 28

29 46

36 10 37

43 (2)

Section 8

HYDRAULIC SYSTEM - KOHLER LP

Ref. No.

1 2 3 4 5 6 7

8 9

12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

28 29 30 31 32 33 34 35 36 37 38 39

Part No. Description

04110-01 48136-13 04001-03 48811 48136-07 481301-03 482266-01

48471-02 482606

423524 423525 04043-04

04021-09 482696 04001-32 04021-09 482695 481793 04001-09 04019-03 48758 482483 04021-08 481164 481507 48603-02 461451 482572 482571 48136-13 48811 04010-10 48571-02 422694 48136-05 48350-02 48938-02 482505 04001-08 04060-09 482574 482573 423513

U-Nut 1/4-20 Hose Clamp, 0.69” Dia. Bolt, Hex Head 1/4-20 x 2.0” Hose, 3/8” ID Pushlock - (order by inch) Clamp, Hose 1/2” Elbow, 90 Degree - 1/4” NPT x 3/8” Hose Elbow, 90 Degree - 9/16” O-Ring x 3/8” Hose Oil Filter Base Hose Assembly, 1/2” ID (Tank to Filter Base) Mounting Bracket - LH, Oil Cooler Mounting Bracket - RH, Oil Cooler Flatwasher, 3/8” (.391 x .938 x .105”) Grade 8 Nut, Hex Elastic Stop 3/8-16 Pump, Right Hand Bolt, Hex Head, 3/8-16 x 1-1/4” Nut, Hex, Elastic Stop 3/8-16 Pump, Left Hand Block, Pump Control Bolt, Hex Head 5/16-18 x 1.0” Zinc Nut, Serrated Flange 5/16-18 Oil Filter Tee, 3/4” O-Ring x JIC x 1/2” Hose Nut, Hex Elastic Stop 1/4-20 Cap, Hydraulic Tank Insert, Filler Neck O-Ring Oil Reservoir Assembly (incl. 24, 27, 39) Elbow, 90 Degree .38” Hose Bushing, .56” Dia. Viton Hose Clamp, 0.69” Dia. Hose, 3/8” ID, Pushlock (order by inch) Screw, Phillips Head, 1/4-20 x 2" Cap Clamp Plate, Pump Control Clamp, Hose Elbow, 90 Degree, 1/2” x 1/2” Bushing, 7/8”-14 JIC x 3/4”-16 O-Ring Cooler, Oil Bolt, Hex Head 5/16-18 x 3/4” Roll Pin, Spring 3/16 x 3/4” Elbow, 90 Degree Bushing, .78” Dia. Viton Strap, Hydraulic Tank

Ref. No.

41 42 43 44 45 46

Part No. Description

423485 481611 48572-04 04001-59 04030-02 04001-01

Support Bracket, Hydraulic Tank Hose Assembly, Pump Union, 3/4”-16 JIC x 3/4”-16 O-Ring Bolt, Hex Head, 1/4-20 x 1-1/4” Lockwasher, 1/4” Spring Bolt, Hex Head 1/4-20 x 3/4"

Section 8

TO VAPORIZER

FROM VAPORIZER

TO CARBURETO R

LP Tank Bracket Kit

LP SYSTEM - KOHLER

Section 8

LP SYSTEM - KOHLER

Ref. No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Part No. Description

04001-12 04001-18 04001-19 04019-03 04019-04 04041-07 422386 425254 425261 425262 425263 483888 483889-01 483903 483909 483910 483911 483912 484000 483899 484033 484034 ** ** **

Bolt, Heax Head 5/16-18 x 1-3/4" Bolt, Head Head 3/8-16 x 3/4" Bolt, Hex Head 3/8-16 x 1" Nut, Serrated Flange 5/16-18 Nut, Serrated Flange 3/8-16 Flatwasher, 3/8-.391 x .938 x .105 Brace Mounting Bracket, Tank Support LH Support, LP Tank Brace, LP Tank Mounting Bracket Mounting Bracket, Tank Support RH LP Quick Coupler Adapter Fitting, 9/16-18 SAE x 1/4" Pipe Mounting Bracket Kit (incl. # 15, 16, 17, 18, 19) Mounting Bracket, LP Tank Front Mounting Bracket, LP Tank Rear Handle, LP Tank Mounting Bracket Bracket, LP Tank Locator Bolt, Hex Head 1/4-20 x 3/8" Locking LP Tank LP Fuel Line, 10" LP Fuel Line, 32" Hose Hose LP Regulator

** Available through the individual engine manufacturer.

Section 8

PORT "A" SIDE

PORT "B" SIDE

Overhaul Seal Kit

BDP-16A HYDRAULIC PUMP ASSEMBLY

Section 8

BDP-16A HYDRAULIC PUMP ASSEMBLY

Ref. No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Part No. Description

HG70740 HG51455 HG70735 HG51462 HG51436 HG2000015 HG2000014 HG2000025 HG2000024 HG2000032 HG2000023 HG2000038 HG51092 HG70581 HG70738 HG70739 HG50641 HG51437 HG9005110-7500 HG70743 HG70742 HG9005200-7500 HG70736 HG2513030 HG9004100-1430 HG50406 HG50173 HG2510071 HG51457 HG70402

Overhaul Seal Kit Valve Plate Cylinder Block Kit - 16cc Thrust Ball Bearing Assembly Variable Swashplate Slot Guide Trunnion Arm Block Spring Block Thrust Washer Shaft Ball Bearing Spacer Retaining Ring Seal Kit, Pump Shaft Housing Kit Trunnion Seal Kit Pin O-Ring Straight Thread Plug Shock Valve Kit (.031 Oriﬁce) Shock Valve Kit (.024 Oriﬁce) Straight Thread Plug End Cap Kit Bypass Valve Kit O-Ring Gerotor Assembly (.19 cu.in./rev.) Socket Head Cap Screw (M8 x 1.25-25mm) Charge Pump Kit (.19 STD. Splined) Hex Screw, Flanged Head (M10 x 1.50-65mm) Charge Relief Kit

SCAG

POWER EQUIPMENT

STT-25CP-LP 2009 ES

9 10

MAIN HARNESS

ENGINE

Section 8

ELECTRICAL SYSTEM - KOHLER LP

Section 8

ELECTRICAL SYSTEM - KOHLER LP

Ref. No.

1 2 3

4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

Part No. Description

483623 48298 483366 462069 48017-04 48017-03 461916 48798 483957 483013 04031-01 04020-01 481755 451879 04030-02 04001-01 04110-01 481544 04010-01 481638 04001-44 48029-22 04020-02 48029-11 48030-09 48136-05 483599 04002-12 04031-03 483642 482588 483629 483571 484078

Wire Harness, STT Air-Cooled Fuse, 20 AMP Key, Ignition Key Assembly w/Fob Nut, Hex 5/8-32 Lockwasher, 5/8” Internal Instrument Panel, Top w/Decals Key Switch Switch, PTO Relay Lockwasher, #10 External Tooth Nut, Hex #10-32 Ammeter Base, Instrument Panel Lockwasher, 1/4” Bolt, Hex Head 1/4-20 x 3/4” U-Nut, 1/4-20 Throttle And Choke Controls (Kohler) Screw, Phillips Washer Head #10-32 x 1/2” Switch, Interlock-Seat Bolt, Hex Head 1/4-20 x 1/2” Cable, Battery - Red Nut, Hex 1/4-20 Cable, Battery - Black Clamp, Cable 1/2” ID. Clamp, Cable 3/4” ID. Electronic Module Bolt, Hex Head M8-1.25 x 20mm Lockwasher, 5/16” External Tooth Double Fuse Assembly, Sealed (Incl. items 2, 42, 43, 44) Clip, Wire Fuse Holder Cover, Sealed Double Wire Harness Adapter, Kohler

WARNING

REPLACEMENT DECALS AND INFORMATION PLATES

WARNING

California Only

Section 8

__________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________ __________

483900

483762

FORWARD

INSTALL BELT COVER BEFORE

REVERSE

WARNING

OPERATING MACHINE

READ OPERATOR'S MANUAL

CHOKE

481568

MOWER DECK

PULL OUT TO ENGAGE

PUSH IN TO DISENGAGE

SLOW FAST

Hea

vy-

Duty

Co mmerc

ial

481971

482983

2011 STT-25CH-LP Decals 1

Section 8

481569

2011 STT-CHLP Decals Page2

483727

484070

PROPANE

481663

481664

48404

ISO 9001 Registered

REPLACEMENT DECALS AND INFORMATION PLATES

Ref. No.

1 2 3 4 5

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Part No. Description

483407 483406 483044 483900 483200 483201 481568 481663 481971 483402 484293 483425 482515 482983 483633 483158 482565 482493 484321 484320 482577

Decal, Danger-Spinning Blades Decal, Warning-Rotating Blades Decal, Patents Decal, Warning Spark Arrestor Decal, 52” Velocity Plus Decal, 61” Velocity Plus Decal, Traction Control Decal, Stripes-LH Decal, Heavy Duty Commercial Decal, Belt Cover Decal, Start / Drive Decal, ROPS Decal, Instrument Panel - Upper Decal, Instrument Panel - Lower Decal, Seat Replacement Decal, ROPS Decal, Cutting Height - Lower Decal, Cutting Height - Upper Decal, Start/Drive Procedure Decal, STT Adjustments Decal, Turf Tiger

Ref. No.

21 22 23 24 25 26 ** **

Part No. Description

483405 483229 483727 48404 484070 481664 461982 01411

Decal, Warning Decal, Turf Tiger Decal, Scag Logo Decal, Metalcraft-Made In USA Decal, Turf Tiger Propane Decal, Stripes-RH Spanish Decal Kit, STT DVD Video, Tips for Safe Operation of Your Scag Zero-Turn Mower (not shown)

ELECTRICAL SCHEMATIC - KOHLER LP

Kohler STT Schematic

Serial No. 7700001 & Higher

RELAY

MODULE

PLUG

POS

AMPMETER

NEG

AMPMETER

PTO

SWITCH

KEY

SWITCH

ENGINE

CLUTCH

NEG

POS

HOURMETER

GROUND

R.H. NEUTRAL

SWITCH

20 AMP FUSE

BRAKE

INTERLOCK

SWITCH

SEAT

SWITCH

L.H. NEUTRAL

SWITCH

DIODE

GRN W/WHT STRIPE

GRN W/BLK STRIPE

GREEN

RED W/YEL STRIPE

PINK

RED

GRN W/BLK STRIPE

WHITE

BLACK

LIGHT BLUE

ORANGE

BROWN

RED

BLUE

RED

LIGHT BLUE

YEL W/RED STRIPE

RED W/YEL STRIPE

RED

YELLOW

RED

WHITE

BLACK

GREEN

YEL W/RED STRIPE

RED

PINK

RED

YELLOW

RED

BROWN

ORANGE

BLUE

YELLOW

GRN W/WHT STRIPE

RED

WHITE

RED W/WHT STRIPE

RED

RED W/WHT STRIPE

BLACK

BLUE

RED

BLACK

DIODE

(600V 2A)

Section 8

LIMITED WARRANTY - COMMERCIAL EQUIPMENT

Any part of the Scag commercial mower manufactured by Scag Power Equipment and found, in the reasonable judgment of Scag, to be defective in materials or workmanship, will be repaired or replaced by an Authorized Scag Service Dealer without charge for parts and labor during the periods speciﬁed below. This warranty is limited to the original purchaser and is not transferable. Proof of purchase will be required by the dealer to substantiate any warranty claims. All warranty work must be performed by an Authorized Scag Service Dealer.

This warranty is limited to the following speciﬁed periods from the date of the original retail purchase for defects in materials or workmanship:

Wear items including drive belts, blades, hydraulic hoses and tires are warranted for ninety (90) days.• Batteries are covered for ninety (90) days.• Frame and structural components including oil reservoir and oil coolers are warranted for two (2) years (parts and labor) for •

commercial use or three (3) years / 500 hours (whichever comes ﬁrst) (parts and labor) for non-commercial use.

Cutter decks are warranted against cracking for a period of three (3) years. (parts and labor 1st and 2nd year; parts only 3rd • year.) The repair or replacement of the cutter deck will be at the option of Scag Power Equipment. We reserve the right to request 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 are warranted for two (2) years (parts and labor) for commercial use or three (3) year / 500 hour • (whichever comes ﬁrst) (parts and labor) for non-commercial use by Scag Power Equipment. (commercial and non-commercial warranty excludes ﬁttings, hoses, drive belts). The repair or replacement of the hydraulic pump or hydraulic motor will be at the option of Scag Power Equipment. This warranty does not cover any mower that has been subject to misuse, neglect, negligence, or accident, or that has been operated in any way contrary to the operating instructions as speciﬁed in the Operator’s Manual.

Electric clutches have a Limited Warranty for two (2) years (parts and labor) for commercial use or three (3) year / 500 hours • (whichever comes ﬁrst) (parts and labor) for non-commercial use.

Spindle assemblies have a Limited Warranty for three years (parts and labor 1st year and 2nd; parts only 3rd year).•

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

The Scag mower, including any defective part must be returned to an Authorized Scag Service Dealer within the warranty period. The expense of delivering the mower to the dealer for warranty work and the expense of returning it to the owner after repair will be paid for by the owner. Scag’s responsibility is limited to making the required repairs and no claim of breach of warranty shall be cause for cancellation or rescission of the contract of sale of any Scag mower. “Non-Commercial” use is deﬁned as a single property owner, where the single property is the residence of the owner of the mower. If the mower is cutting more than the owners single property, it is deemed commercial use and the “non-commercial” warranty does not apply. Scag Power Equipment reserves the right to deny and / or void the non-commercial warranty if it believes it to be in commercial use.

This warranty does not cover any mower that has been subject to misuse, neglect, negligence, or accident, or that has been operated in any way contrary to the operating instructions as speciﬁed in the Operator’s Manual. The warranty does not apply

to any damage to the mower that is the result of improper maintenance, or to any mower or parts that have not been assembled or installed as speciﬁed in the Operator’s Manual and Assembly Manual. The warranty does not cover any mower that has been altered or modiﬁed, changing performance or durability. In addition, the warranty does not extend to repairs made necessary by normal wear, or by the use of parts or accessories which, in the reasonable judgment of Scag, are either incompatible with the Scag mower or adversely affect its operation, performance or durability.

Scag Power Equipment reserves the right to change or improve the design of any mower without assuming any obligation to modify any mower previously manufactured. All other implied warranties are limited in duration to the two (2) year for commercial

use, three (3) years / 500 hour for non-commercial use or ninety (90) days for mowers used for rental purpose. Accordingly, any such implied warranties including merchantability, ﬁtness for a particular purpose, or otherwise, are disclaimed in their entirety after the expiration of the appropriate two year or ninety day warranty period. Scag’s obligation under this warranty is strictly and exclusively limited to the repair or replacement of defective parts and Scag does not assume or authorize anyone to assume for them any other obligation. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

Scag assumes no responsibility for incidental, consequential or other damages including, but not limited to, expense for gasoline, expense of delivering the mower to an Authorized Scag Service Dealer and expense of returning it to the owner, mechanic’s travel time, telephone or telegram charges, rental of a like product during the time warranty repairs are being performed, travel, loss or damage to personal property, loss of revenue, loss of use of the mower, loss of time or inconvenience. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you speciﬁc legal rights, and you may also have other rights which vary from state to state.

Scag STT52V-25CH-LP, STT61V-25CH-LP User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

GENERAL INFORMATION

INTRODUCTION1.1

DIRECTION REFERENCE1.2

SYMBOLS1.4

SAFETY INFORMATION

INTRODUCTION2.1

SIGNAL WORDS2.2

OPERATION CONSIDERATIONS2.4

ROLL-OVER PROTECTION SYSTEM2.5

USING A SPARK ARRESTOR2.7

SPARK IGNITION SYSTEM2.8

SAFETY AND INSTRUCTIONAL DECALS2.9

SPECIFICATIONS

ENGINE3.1

ELECTRICAL3.2

POWER HEAD3.3

CUTTER DECK3.4

HYDRAULIC SYSTEM3.5

OPERATING INSTRUCTIONS

SAFETY INTERLOCK SYSTEM4.2

INITIAL RUN-IN PROCEDURES4.3

STARTING THE ENGINE4.4

GROUND TRAVEL AND STEERING4.5

HILLSIDE OPERATION4.7

AFTER OPERATION4.9

PARKING THE MOWER4.8

REMOVING CLOGGED MATERIAL4.10

ADJUSTING CUTTING HEIGHT4.13

RECOMMENDATIONS FOR MOWING4.12

ADJUSTING THE STEERING LEVERS4.14

TROUBLESHOOTING CUTTING CONDITIONS

ADJUSTMENTS

PARKING BRAKE ADJUSTMENT6.1

TRAVEL ADJUSTMENTS6.2

BELT ADJUSTMENT6.4

BELT ALIGNMENT6.5

CUTTER DECK ADJUSTMENTS6.6

ELECTRIC CLUTCH ADJUSTMENT6.7

MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS7.1

MAINTENANCE

LUBRICATION7.2

HYDRAULIC SYSTEM7.3

ENGINE OIL

ENGINE FUEL SYSTEM7.5

ENGINE AIR CLEANER7.6

BATTERY7.7

DRIVE BELTS7.8

CUTTER BLADES7.9

CUTTER DECK GEARBOX7.11

TIRES7.10

BODY, DECK, AND UPHOLSTERY7.12

ILLUSTRATED PARTS LIST

52V CUTTER DECK

61V Cutter Deck

CUTTER DECK CONTROLS

SHEET METAL COMPONENTS

STT ROLL-OVER PROTECTION SYSTEM

STT SUSPENSION SEAT

DECK DRIVE COMPONENTS

ENGINE AND ATTACHING PARTS - KOHLER LP

BRAKE AND STEERING COMPONENTS

HYDRAULIC SYSTEM - KOHLER LP

LP SYSTEM - KOHLER

BDP-16A HYDRAULIC PUMP ASSEMBLY

ELECTRICAL SYSTEM - KOHLER LP

REPLACEMENT DECALS AND INFORMATION PLATES

ELECTRICAL SCHEMATIC - KOHLER LP

LIMITED WARRANTY - COMMERCIAL EQUIPMENT