Page 3 - TABLE OF CONTENTS; SUBJECT
I TABLE OF CONTENTS SUBJECT PAGE Section 1 - General Information 1.1 Introduction ............................................................................................................................. 1 1.2 Directional Reference ...................................................................
Page 4 - II
II TABLE OF CONTENTS (CONT'D) SUBJECT PAGE Section 6 - Adjustments 6.1 Parking Brake Adjustment .................................................................................................... 20 6.2 Travel Adjustments ................................................................................
Page 5 - GENERAL INFORMATION; DIRECTION REFERENCE; Section 1; Figure 1-1 Tractor Serial Number Plate Location
1 GENERAL INFORMATION 1.1 INTRODUCTION Your mower was built to the highest standards in the industry. However, the prolonged life and maximum efficiency of your mower depends on you following the operating, maintenance and adjustment instructions in this manual. If additional information or service ...
Page 6 - ISO Symbols; WARNING
2 CE Mark Transmission Choke On/Start Spring Tension on Idler Oil Off/Stop SYMBOL DESCRIPTION SYMBOL DESCRIPTION ISO Symbols Spinning Blade 48071S Parking Brake WARNING FALLING HAZARD USE ONLY SCAG APPROVED RIDING ATTACHMENTS SEE OPERATOR'S MANUAL 481109 Falling Hazard
Page 8 - SAFETY INFORMATION; READ THIS OPERATORS MANUAL BEFORE; Section 2
4 SAFETY INFORMATION 2.1 INTRODUCTION Your mower is only as safe as the operator. Carelessness or operator error may result in serious bodily injury or death. Hazard control and accident prevention are dependent upon the awareness, concern, prudence, and proper training of the personnel involved in ...
Page 9 - If the mower is driven on public roads, it must; DO NOT; OPERATION CONSIDERATIONS; DO NOT
5 10. DO NOT add fuel to a running or hot engine. Allow the engine to cool for several minutes before adding fuel. 11. Keep flammable objects (cigarettes, matches, etc.), open flames and sparks away from the fuel tank and fuel container. 12. Equipment must comply with the latest requirements per SAE...
Page 10 - MAINTENANCE CONSIDERATIONS; Hydraulic fluid is under high pressure.
6 Section 2 2.4 OPERATION CONSIDERATIONS (CONT'D) 3. To prevent tipping or loss of control, start and stop smoothly, avoid unnecessary turns and travel at reduced speed. 4. When using any attachment, never direct the discharge of material toward bystanders or allow anyone near the machine while in o...
Page 11 - SAFETY AND INSTRUCTIONAL DECALS; INSTALL BELT COVER BEFORE; FORWARD
7 Section 2 2.6 SAFETY AND INSTRUCTIONAL DECALS WARNING INSTALL BELT COVER BEFORE OPERATING MACHINE READ OPERATOR'S MANUAL 481039 390S0150A 481568 FORWARD REVERSE F R IMPORTANT ADJUSTMENT PROCEDURES READ OPERATOR'S MANUAL FOR MORE DETAILS NEUTRAL ADJUSTMENT TRACKING ADJUSTMENT FREE WHEEL OPERATION H...
Page 12 - SPECIFICATIONS; Section 3; SCAG “SABRE TOOTH TIGER” ZERO-TURN RIDER; The machine will travel at 10.5 mph for
8 SPECIFICATIONS Section 3 SCAG “SABRE TOOTH TIGER” ZERO-TURN RIDER MODEL: STT– 31BSG ENGINE General Type: Heavy duty industrial/commercial Brand: Briggs Daihatsu Vanguard Liquid Cooled 31 HP Model: DM950G Horsepower: 31 HP @ 3600 RPM Type: water cooled 4 cycle, overhead valve, 3 cylinder, gas engin...
Page 14 - Section 4; OPERATING INSTRUCTIONS; Figure 4-1 Controls and Instruments
1 0 Section 4 OPERATING INSTRUCTIONS Do not attempt to operate this mower unless youhave read this manual. Learn the location andpurpose of all controls and instruments before youoperate this mower. 4.1 CONTROLS AND INSTRUMENT IDENTIFICATION Before operating the mower, familiarize yourself with all ...
Page 15 - Figure 4-2 Dump Valve Control; SAFETY INTERLOCK SYSTEM
1 1 Section 4 5 . Voltmeter (Figure 4-1). Indicates the condition of the charging system. When the engine is running, in normal operating conditions, the needle should be in the 12 to 14 volt range. 6 . Oil Pressure (Figure 4-1). Indicates engine oil pressure. Reference the engine operator's manual ...
Page 16 - STARTING THE ENGINE
1 2 Section 4 4.3 INITIAL RUN-IN PROCEDURES (First Day of Use or Approximately 10 Hours) 1. Check all belts for proper alignment and wear at 2, 4 and 8 hours. 2. Change the engine oil and oil filter after the first 5 hours of operation. (See Section 7.4.) 3. Check hydraulic oil level in reservoir. (...
Page 17 - Reverse Travel; Figure 4-3 Cutter Engage Switch
1 3 Section 4 To steer the mower left while traveling forward, pull the left steering lever back. The further the lever is pulled back, the quicker the mower will turn left. To steer the mower right while traveling forward, pull the right steering control lever back. The further the lever is pulled ...
Page 18 - HILLSIDE OPERATION; Do not wash a hot or running engine. Cold
1 4 Section 4 4. Always operate the engine at full throttle to properly maintain cutting speed. If the engine starts to lug down, reduce the forward speed and allow the engine to operate at maximum RPM. 4.7 HILLSIDE OPERATION DO NOT operate on steep slopes. To check a slope,attempt to back up it (wi...
Page 19 - REMOVING CLOGGED MATERIAL; ROTATING BLADES
1 5 Section 4 4.10 REMOVING CLOGGED MATERIAL 1. If the discharge chute becomes clogged, shut off the engine and remove the ignition key. Using a stick or similar item, dislodge the clogged material. Then resume normal mowing. 4.11 MOVING MOWER WITH ENGINE STOPPED To free-wheel or move the mower ar...
Page 20 - ADJUSTING CUTTING HEIGHT; Figure 4-7 Deck Release Lever; Figure 4-6 Adjusting Cutting Height
1 6 Section 4 4.13 ADJUSTING CUTTING HEIGHT The mower deck can be adjusted from a height of 1-inch to 6 inches at 1/2-inch intervals. To adjust the cutting height: 1. Push the cutting height adjustment foot pedal all the way forward using your right foot until it locks in place. (Figure 4-6). 2. Ins...
Page 21 - Section 5; Stringers - Occasional; CONDITION; Streaking - Strips of; TROUBLESHOOTING CUTTING CONDITIONS
Section 5 1 7 Stringers - Occasional Low engine RPM Run engine at full RPM Blades of UncutGrass 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 de...
Page 22 - Uneven Cut on Flat; Uneven Cut on
Section 5 1 8 Uneven Cut on Flat Lift worn from blade Replace blade Ground - WavyHigh-Low Blade upside down Mount with cutting edge toward Appearance, ground Scalloped Cut, orRough Contour Deck plugged, grass accumulation Clean underside of deck Too much blade angle (deck pitch) Adjust pitch and lev...
Page 23 - the Ground
Section 5 1 9 Scalping - Blades Low tire pressures Check and adjust pressures Hitting Dirt orCutting Very Close to Ground speed too fast Slow speed to adjust for conditions the Ground Cutting too low May need to reduce ground speed, raise cutting height, change direction of cut, and/or change pitch ...
Page 24 - Section 6; ADJUSTMENTS; PARKING BRAKE ADJUSTMENT; If this proceedure does not achieve proper brake; TRAVEL ADJUSTMENTS
Section 6 2 0 ADJUSTMENTS 6.1 PARKING BRAKE ADJUSTMENT WARNING: Do not operate the mower if the parking brake isnot operable. Possible severe injury couldresult. The parking brake linkage should be adjusted whenever the parking brake lever is placed in the ENGAGE position and the parking brake wil...
Page 25 - Neutral Adjustment; Figure 6-3. RH Steering Control Rod Adjustment
Section 6 2 1 B. The steering control levers are in the full forward position and the mower pulls to one side or the other when traveling in a forward direction. (Tracking Adjustment, See Page 22). Neutral Adjustment 1. Be sure the dump valve levers are in the run position and the steering control l...
Page 26 - Tracking Adjustment
Section 6 2 2 Tracking Adjustment Stop the engine and remove the key from theignition before making any adjustments. Wait forall moving parts to come to a complete stopbefore beginning work. The engine and drive unit can get hot duringoperation causing burn injuries. Allow engineand drive components...
Page 27 - CUTTER DECK ADJUSTMENTS
Section 6 2 3 6.6 CUTTER DECK ADJUSTMENTS Cutter deck level, pitch and height are set at the factory. However, if these adjustments should ever need to be made, the following procedures will aid in obtaining the proper cutter deck adjustment. -NOTE- Before proceeding with the cutter deck adjustments...
Page 28 - Cutter Deck Height; Figure 6-6. Cutter Deck Height Adjustment; If an adjustment has to be made, be sure that the
Section 6 2 4 Cutter Deck Height The cutter deck height adjustment is made to ensure that the cutter deck is cutting at the height indicated on the cutting height index gauge. To check for proper deck height, be sure that the mower is on a flat, level surface and the tires are properly inflated. 1. ...
Page 29 - Section 7; MAINTENANCE; MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS; HOURS
Section 7 2 5 MAINTENANCE 7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS * Perform these maintenance procedures more frequently under extreme dusty or dirty conditions HOURS Break-In 8 40 100 200 500 Procedure Comments (First 10) X Check all hardware for tightness X Check hydraulic oil level ...
Page 31 - Figure 7.1 Lubrication Fitting Points
Section 7 2 7 Figure 7.1 Lubrication Fitting Points 390S0145 GREASE FITTING LUBRICATION LUBRICANT / INTERVAL LITHIUM MP WHITE GREASE 2125( 40 HOURS / WEEKLY ) CHASSIS GREASE( 100 HOURS / BI-MONTHLY ) CHASSIS GREASE( 200 HOURS / MONTHLY ) 4 1 6 3 5 7 2 1 8 4 3 9 CHASSIS GREASE( 500 HOURS / YEARLY ) 5...
Page 32 - A. Checking Hydraulic Oil Level; Figure 7-2 Hydraulic Oil Reservoir
2 8 Section 7 7.3 HYDRAULIC SYSTEM A. Checking Hydraulic Oil Level The hydraulic oil level should be checked after the first 10 hours of operation. Thereafter, check the oil after every 200 hours of machine operation or monthly, whichever occurs first. - I M P O R TA N T- If the oil level is consist...
Page 33 - A. Checking Engine Crankcase Oil Level; C. Changing Hydraulic Oil Filter Element; Figure 7-3 Hydraulic Oil Filter
Section 7 2 9 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 Operators Manual furnished with this mower (See Figure 7-4). B. Changing Engine Crankcase Oil After the first 5 hours of operation, chang...
Page 34 - ENGINE FUEL SYSTEM; The fuel filter is located below the hydraulic; Figure 7-5 Fuel Filter; ENGINE AIR CLEANER; In extremely dusty conditions it may be
3 0 Section 7 7.5 ENGINE FUEL SYSTEM A. Filling the Fuel Tank Fill the fuel tank at the beginning of each operating day to within 1 inch below the filler neck. Do not overfill. Use clean, fresh unleaded gasoline with a minimum octane rating of 87. B. Replacing In-Line Fuel Filter Element -NOTE- The ...
Page 35 - BATTERY ELECTROLYTE FIRST AID; Do not overfill the battery. Electrolyte will over-; B. Charging the Battery
Section 7 3 1 Electric storage battery fluid containssulfuric acid which is POISON and cancause SEVERE CHEMICAL BURNS. Avoidcontact of fluid with eyes, skin, or clothing.Use proper protective gear when handlingbatteries. DO NOT tip any battery beyond45° angle in any direction. If fluid contactdoes o...
Page 37 - Figure 7-9 Blade Sharpening; The front of the machine will have to be raised; Figure 7-10 Blade Replacement; Be sure that the blade is installed with the lift
Section 7 3 3 Figure 7-9 Blade Sharpening 2. Check the balance of the blade. If the blades are out of balance, vibration and premature wear can occur. See your authorized Scag dealer for blade balancing or special tools, if you choose to balance your own blades. C. Blade Replacement 1. Remove the ig...
Page 38 - CUTTER DECK GEARBOX; Figure 7-12 Cutter Deck Gearbox; A. Checking Coolant Level; Refer to the coolant manuafacturer's instruc-; Figure 7-13 Coolant Level in Radiator
3 4 Section 7 T h e c u t t e r d e c k g e a r b o x c a n r e a c h h i g hoperating temperatures. Allow the cutter deckgearbox to cool before servicing. CAUTION: 7.11 CUTTER DECK GEARBOX A. Checking Lubricant Level The fluid level in the cutter deck gearbox (Figure 7-12) should be checked after e...
Page 39 - B. Cleaning the Radiator Debris Screen
Section 7 3 5 3. Replace the radiator cap. Push down on the cap and turn clockwise until it stops. - N O T E - The cooling system should be flushed and the coolant replaced every 500 hours of op- eration or annually. See your Scag dealer for proper coolant replacement. B. Cleaning the Radiator Debri...
Page 42 - CUTTER DECK CONTROLS
3 8 CUTTER DECK CONTROLS CUTTER DECK 16 1 2 3 5 6 7 7 8 9 10 11 12 13 14 15 16 17 18 20 21 22 23 24 24 18 16 16 16 25 25 26 26 16 16 27 16 19 25 28 29 30 29 31 32 33 34 35 36 36 24 24 31 39 40 41 24 24 36 42 36 35 24 31 39 43 36 24 44 45 46 47 48 49 50 37 38 2001 STTBSG-CDC 51 52 4
Page 43 - Description
3 9 Ref. PartNo. No. Description CUTTER DECK CONTROLS * Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated. 1 481428 Grip, Deck Latch 2 46975 Deck Latch (Includes items 20& 21) 3 04009-02 Bolt, Shoulder 1/2 x 3/4" 4 04012-09 Set Screw...
Page 44 - SHEET METAL COMPONENTS
4 0 SHEET METAL COMPONENTS TO "A" "A" 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20 33 19 21 22 22 23 24 25 26 27 28 28 20 29 30 31 32 19 20 34 35 36 36 37 38 39 40 41 42 43 44 47 48 45 46 46 45 49 51 50 52 53 54 55 56 15 57 58 57 58 15 59 60 2001 STTBSG-SMC
Page 46 - DECK DRIVE COMPONENTS
4 2 A To A B To B DECK DRIVE COMPONENTS TO REAR OF ENGINE TO ENGINE FLYWHEEL 1 2 3 4 5 6 7 8 9 4 10 11 12 13 14 15 16 17 18 19 20 21 22 22 23 24 24 25 25 26 27 27 28 29 30 31 32 33 34 35 36 37 38 42 40 41 39 43 43 35 44 44 45 46 47 43 48 35 49 50 51 52 53 43 55 54 43 55 45 57 43 58 48 49 35 59 59 60...
Page 50 - BRAKE AND STEERING COMPONENTS
4 6 STT99B&SC BRAKE AND STEERING COMPONENTS A A 1 2 8 11 33 13 17 20 12 14 19 23 41 11 21 34 36 57 73 48 47 46 5 23 53 42 43 44 45 15 56 70 69 68 71 62 15 65 63 60 64 67 60 52 41 34 23 51 22 50 61 59 9 22 34 35 TO RH PUMP TO LH PUMP 37 36 27 28 35 33 3 34 31 30 29 10 9 6 32 7 13 B 24 9 B 25 18 7...
Page 52 - FUEL AND HYDRAULIC SYSTEM
4 8 FUEL AND HYDRAULIC SYSTEM TO ENGINE D To RT. COOLER UPPER PORT To LT. COOLER UPPER PORT From RT. COOLERBOTTOM PORT C TO "D" A To A TO "B" TO "C" TO "E" TO CARB. E B From LT. COOLER BOTTOM PORT 2001- STTBSG-FHS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 18 19 20 ...
Page 54 - ELECTRICAL SYSTEM
5 0 ELECTRICAL SYSTEM B A C C B A 1 2 3 4 5 6 7 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 22 21 20 20 20 24 25 24 25 24 25 26 22 21 22 21 27 27 1 2 19 28 29 30 31 32 33 34 35 36 36 37 D D 19 38 ELECTRICAL SYSTEM
Page 56 - HYDRAULIC PUMP ASSEMBLY; Overhaul Seal Kit
5 2 HYDRAULIC PUMP ASSEMBLY STT 2K BDP-21 11 4 9 11 2 12 10 6 8 7 18 5 14 17 19 20 22 21 23 24 16 25 26 28 27 3 Overhaul Seal Kit 1 3 25 13 15 HYDRAULIC PUMP ASSEMBLY - BDP-21L
Page 59 - REPLACEMENT DECALS AND INFORMATION PLATES; Commercial
5 5 REPLACEMENT DECALS AND INFORMATION PLATES 482285 482286 48320 - 61"48327 - 72"481955 - 61A481956 - 71A 48656 48404 481568 482290 481039 481348 481543 482287 481971 CHOKE SLOW FAST R 481348 WARNING INSTALL BELT COVER BEFORE OPERATING MACHINE READ OPERATOR'S MANUAL 481039 CUTTING HEIGHT 6 ...
Page 61 - tion to modify any mower previously manufactured.; may not apply to you.; LIMITED WARRANTY - COMMERCIAL EQUIPMENT
Any part of the Scag commercial mower manufactured by Scag Power Equipment and found, in the reasonable judgment of Scag, to be defective in materials or workmanship, will be repaired or replaced by an Authorized Scag Service Dealer without charge for parts and labor. This warranty is limited to the...
