SCAG STT-31BSG - Manuals

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

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 ...

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...

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...

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...

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...

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 ...

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 ...

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. (...

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 ...

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...

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...

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...

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...

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...

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 ...

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...

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...

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...

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...

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. ...

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 ...

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...

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...

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 Operator’s Manual furnished with this mower (See Figure 7-4). B. Changing Engine Crankcase Oil After the first 5 hours of operation, chang...

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 ...

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...

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...

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...

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...

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

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...

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

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...

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...

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 ...

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

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

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 ...

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...