Scag Power Equipment STT Operator'S Manual Download

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MODEL STT

OPERATOR’S MANUAL

THIS MANUAL CONTAINS THE OPERATING

INSTRUCTIONS AND SAFETY INFORMA-

TION FOR YOUR SCAG MOWER. READING

THIS MANUAL CAN PROVIDE YOU WITH

ASSISTANCE IN MAINTENANCE AND AD-

JUSTMENT PROCEDURES TO KEEP YOUR

MOWER PERFORMING TO MAXIMUM EFFI-

CIENCY. THE SPECIFIC MODELS THAT THIS

BOOK COVERS ARE CONTAINED ON THE

INSIDE COVER. BEFORE OPERATING YOUR

MACHINE, PLEASE READ ALL THE INFOR-

MATION ENCLOSED.

PART NUMBER 03092

Summary of Contents for STT

Page 1: ...OWER READING THIS MANUAL CAN PROVIDE YOU WITH ASSISTANCE IN MAINTENANCE AND AD JUSTMENT PROCEDURES TO KEEP YOUR MOWER PERFORMING TO MAXIMUM EFFI CIENCY THE SPECIFIC MODELS THATTHIS BOOK COVERS ARE CON...

Page 2: ...proper training of the personnel involved in the operation transport maintenance and storage of the equipment WARNING Always use the entire serial number listed on the serial number tag when referring...

Page 3: ...and Instructional Decals 7 Section 3 Specifications 8 9 Section 4 Operating Instructions 4 1 Controls and Instrument Identification 10 4 2 Safety Interlock System 11 4 3 Initial Run In Procedures 11...

Page 4: ...Upholstery 35 Section 8 Replacement Parts STT52A STT61A Cutter Deck 36 37 STT72A Cutter Deck 38 39 Cutter Deck Controls 40 41 Sheet Metal Components 42 43 Deck Drive Components 44 45 Engine and Attac...

Page 5: ...s the right to make changes at any time without notice and without incurring any obligation 1 2 DIRECTION REFERENCE The Right and Left Front and Rear of the machine are referenced from the operator s...

Page 6: ...rt 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 OPERA...

Page 7: ...tting Element Basic symbol Cutting Element Disengage Continuously Variable Linear Read Operator s Oanual Keep Bystanders Away Pinch Point 481039S SYMBOL DESCRIPTION SYMBOL DESCRIPTION Hourmeter Elapse...

Page 8: ...causes of possible injury or death 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 degre...

Page 9: ...mended particularly for continuous operation of the mower Wear suitable hearing protection Prolonged exposure to loud noise can cause hearing impairment or loss 9 Keep the machine and attachments in g...

Page 10: ...ng the engine and removing the key 13 Disengage power to the attachments when transporting or when not in use 14 The machine and attachments should be stopped and inspected for damage after striking a...

Page 11: ...djust LH control linkage CCW to slow left wheel If the machine pulls to the left adjust RH control linkage CCW to slow right wheel Readjust neutral if necessary With an operator in the seat engine run...

Page 12: ...t Starter Belts Kevlar cord Self adjusting Self tightening Deck Drive Belt Scag Part Number 481460 Pump Drive Belt Scag Part Number 482171 Kawasaki Fan Belt Part Number Mitsubishi 59011 2056 Avail Thr...

Page 13: ...tenance with Top Access Grease FittingandGreaseOverfillReliefPoppet SpindlePulleys Cast iron with Easily Removed Taper Hubs CutterDeckBelts B sectionwithKevlarCord Self adjusting Self tightening SMT52...

Page 14: ...own on the switch will disengage the deck drive 3 Engine Choke Control Figure 4 1 Used to start a cold engine 4 Engine Throttle Control Figure 4 1 Used to control the engine speed Pushing the lever fo...

Page 15: ...move under hydraulic power The levers must be in this position during operation of the mower Rotating the levers counter clockwise allows the mower to be moved by hand free wheeling 13 Deck Lift Foot...

Page 16: ...warm before operating the mower CAUTION IMPORTANT If you are not familiar with the operation of a machine with lever steering and or hydrostatic transmissions the steering and ground speed operations...

Page 17: ...llowed to move forward the quicker the mower will turn right To stop the reverse travel allow the steering control levers to return to the neutral position If the mower is to be parked engage the park...

Page 18: ...he neutral position 2 Disengage the cutter blades 3 Slow the engine to idle speed 4 Engage the parking brake 5 Turn the ignition key to the OFF position and remove the key 4 9 AFTER OPERATION 1 Wash t...

Page 19: ...2 The discharge chute must not be removed and must be kept in the lowest position to deflect grass clippings and thrown objects downward Direct the side discharge away from sidewalks or streets to mi...

Page 20: ...ing your right foot until it locks in place Figure 4 6 3 Insert the lanyard pin into the cutting height index at the desired cutting height Push forward on the deck lift foot lever hold in place and l...

Page 21: ...es Uncut Grass in Cutting Path Incorrect blade sharpening Sharpen blades Low engine RPM Run engine at full RPM Beltslipping Adjustbelttension Deck plugged grass accumulation Clean underside of deck Gr...

Page 22: ...ized SCAG dealer Dullblade Sharpen blade TROUBLESHOOTING CONT D Sloping Ridge Across Tire pressures not equal Check and adjust tire pressure Width of Cutting Path Wheels uneven Check and adjust tire p...

Page 23: ...speed to adjust for conditions Wet grass Cut grass after it has dried out Step Cut Ridge Blades not mounted evenly Adjust pitch and level in Center of Cutting path Bent blade Replace blade Internalspi...

Page 24: ...rod and turning the rod until the proper distance is achieved See Figure 6 1 Tighten the jam nuts 4 With the brake in the engaged position check the distance between the lower nut on the brake actuato...

Page 25: ...wheel by loosening the jam nuts on the steering control rod and turning the rod until the drive wheel turns in the forward direction Turn the rod back until the drive wheel stops moving Turn the rod...

Page 26: ...ustment must be made as described on page 21 2 If at full speed the mower pulls left it is an indication that the right wheel is turning faster than the left wheel To adjust this condition proceed as...

Page 27: ...er 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...

Page 28: ...6 Cutter Deck Height Adjustment 2 Turn the control rod See Figure 6 6 until there is a 1 4 space between the rear deck stop and the top of the cutter deck See Figure 6 7 Tighten the jam nuts on the c...

Page 29: ...cking the hydraulic hoses See paragraph 2 5 X Check coolant level Kawasaki only See paragraph 7 12 X Check engine oil level See paragraph 7 4 X Clean mower See paragraph 7 13 X Check condition of blad...

Page 30: ...BrakeActuator 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...

Page 31: ...ICATION 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 2 5 3 9 9 CHASSIS GREASE 500 HOURS YEAR...

Page 32: ...e 4 Fill the reservoir to 3 1 4 inches from the top of the filler neck with 20W50 motor oil 5 Replace the reservoir fill cap Start the engine and drive forward and backward for two minutes Check the o...

Page 33: ...r daily as instructed in the Engine Operator s Manual furnished with this mower B Changing Engine Crankcase Oil Figure 7 4 Engine Fill Stick 390S0155 HYDRAULIC OIL FILTER 390S0156 ENGINE OIL DIPSTICK...

Page 34: ...lamps Figure 7 6 Fuel Filter 7 6 ENGINE AIR CLEANER A Cleaning and or Replacing Air Cleaner Element For any air cleaner the operating environment dictates the air cleaner service periods Inspect and c...

Page 35: ...away from batteries Provide proper ventilation and wear safety glasses WARNING 1 Loosen the two plastic wing nuts and then remove the battery cover 2 Remove the battery cell caps Visually inspect ele...

Page 36: ...nd wear Thereafter check the belts after every 40 hours of operation or weekly whichever occurs first 7 9 CUTTER BLADES A Blade Inspection 1 Remove the ignition key before servicing the blades 2 Raise...

Page 37: ...ave to be raised slightly to remove the blade bolt from the cutter spindle 4 To install the new cutter blade put the flat washer onto the blade bolt and slide the bolt into the hole in the cutter blad...

Page 38: ...ainer beneath the cutter deck gearbox and locate the gearbox drain plug Figure 7 9 Cutter Deck Gearbox 2 Remove the drain plug drain the lubricant into the container and properly discard it 3 Re insta...

Page 39: ...ll the debris screen to the radiator C Checking The Fan Belt Tension Periodically check the fan belt tension The belt should deflect 1 2 with 10 pounds of pressure See your Scag dealer if the belt is...

Page 40: ...56 33 3 A A B B 4 14 29 20 53 28 52 24 58 24 52 73 66 32 13 68 55 55 29 58 2 3 13 23 68 57 23 3 11 50 13 46 60 49 67 24 35 48 9 16 19 15 27 26 12 74 51 23 23 36 37 44 39 43 42 38 45 41 34 74 22 40 37...

Page 41: ...olt Hex Head 3 8 16 x 1 1 2 x x 33 04001 136 Bolt Hex Head 3 8 16 x 1 1 2 Grade 8 x x 34 46631 Spindle Assembly x x 35 43298 Spindle Shaft x x 36 481024 Seal Top x x 37 481022 Bearing Assembly x x 38...

Page 42: ...A A B B 4 14 29 20 53 28 52 24 58 24 52 62 66 32 13 68 55 55 29 58 2 3 13 23 68 57 23 3 11 50 13 46 60 49 67 24 35 48 9 16 19 15 27 26 12 74 51 23 23 36 37 44 39 43 42 38 45 41 34 72 22 40 37 18 10 1...

Page 43: ...Wheel 6 04003 26 Bolt Carriage 3 8 16 x 4 7 422478 Anti Scalp Wheel Bracket 8 04017 27 Bolt Hex Serrated Flange 3 8 16 x 1 9 04040 10 Flatwasher 5 8 688 x 1 75 x 134 10 04021 05 Locknut 3 8 16 Center...

Page 44: ...7 42 4 6 14 10 42 5 2 3 35 23 41 37 15 22 26 25 24 34 37 27 38 37 32 48 41 49 27 33 40 41 41 37 28 28 52 12 51 50 52 51 41 40 CUTTER DECK 1 37 13 40 39 31 7 41 40 39 43 29 9 30 37 8 45 20 18 36 17 44...

Page 45: ...29 04001 91 Bolt Hex Head 7 16 14 x 2 1 2 30 04021 11 Nut Hex Elastic Stop 7 16 14 31 04004 33 Stud 5 8 11 x 22 0 32 04067 05 Ring Pin 1 2 x 3 30 33 04050 08 Ring Retaining 1 External E 34 04063 01 K...

Page 46: ...ENTS STT 2001 SMC A 2 20 46 48 47 48 21 3 15 49 50 26 30 25 12 15 15 14 13 12 11 10 16 19 18 15 9 7 8 6 5 1 17 23 24 A 31 32 33 34 29 33 36 37 40 39 38 41 42 43 55 22 35 44 45 15 51 53 27 28 58 56 57...

Page 47: ...481657 Bearing W Race 34 482028 01 Plug 1 4 28 THD Form 35 45936 Extention Weldment Caster 52A LH 45937 Extention Weldment Caster 52A RH 61A LH RH 45939 Extention Weldment Caster 72A LH 451128 Extenti...

Page 48: ...19 27 8 10 55 27 7 8 36 28 8 31 9 49 37 13 33 34 1 2 5 4 21 85 23 22 20 18 3 56 11 32 38 45 47 31 41 34 35 42 48 36 63 62 57 67 29 8 6 7 14 53 52 50 51 4 46 29 48 44 43 31 12 15 25 16 49 A C B B C FRA...

Page 49: ...ly Includes item 35 43 04030 04 Lockwasher 3 8 44 04020 04 Nut Hex 3 8 16 45 43277 Spacer 46 04021 05 Locknut Hex Center Lock 3 8 16 47 48198 Pulley Idler 5 00 Dia 48 481882 Pulley 49 04063 14 Key 5 x...

Page 50: ...46 Section 8 STT 2K EAP KH ENGINE AND ATTACHING PARTS KOHLER 1 3 7 8 8A 2 5 9 10 9 14 10 12 13 10 12 15 4 FRAME REF PUMP MTG WELDMENT 11 17 18 6 16 ENGINE AND ATTACHING PARTS KOHLER...

Page 51: ...613 9 04001 19 Bolt Hex Head 3 8 16 x 1 10 04030 04 Lockwasher 3 8 Spring 11 04001 21 Bolt Hex Head 3 8 16 x 1 3 4 12 04021 09 Nut Hex Elastic Stop 3 8 16 13 04001 32 Bolt Hex Head 3 8 16 x 1 1 4 14 4...

Page 52: ...48 Section 8 ENGINE AND ATTACHING PARTS 22HP KAWASAKI STT 2001 EAP K 1 3 7 8 5 9 6 10 13 14 10 12 13 10 12 15 FRAME REF PUMP MTG WELDMENT 11 17 16 4 2 18...

Page 53: ...5 Grade 8 8 10 04030 04 Lockwasher 3 8 Spring 11 04001 21 Bolt Hex Head 3 8 16 x 1 3 4 12 04021 09 Nut Hex Elastic Stop 3 8 16 13 04001 32 Bolt Hex Head 3 8 16 x 1 1 4 14 422396 Plate Engine Mounting...

Page 54: ...50 Section 8 ENGINE AND ATTACHING PARTS 23HP 27HP KAWASAKI STT 2001 EAP 23 27KA 1 3 7 8 5 9 6 10 13 14 10 12 13 10 12 15 FRAME REF PUMP MTG WELDMENT 11 17 16 4 2...

Page 55: ...gh Kawasaki 9 04002 03 Bolt M8 1 25 x 25 Grade 8 8 10 04030 04 Lockwasher 3 8 Spring 11 04001 21 Bolt Hex Head 3 8 16 x 1 3 4 12 04021 09 Nut Hex Elastic Stop 3 8 16 13 04001 32 Bolt Hex Head 3 8 16 x...

Page 56: ...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 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...

Page 57: ...09 Bolt Hex Head 5 16 18 x 1 41 48114 04 Grease Fitting 42 461082 Lever Parking Brake Includes item43 43 481548 Grip Parking Brake 44 04001 22 Bolt Hex Head 3 8 16 x 2 3 4 45 04019 04 Nut Hex Serrated...

Page 58: ...20 A 22 62 28 33 26 20 16 17 33 18 6 4 1 3 21 20 22 27 28 19 26 21 22 24 18 20 16 5 7 17 13 12 11 10 9 8 15 29 4 41 20 43 31 32 16 40 18 24 20 39 15 42 20 22 42 20 38 36 15 37 16 38 18 40 6 4 6 44 44...

Page 59: ...on Ref Part No No Description KOHLER KAWASAKI 52 61 FUEL AND HYDRAULIC SYSTEM 33 48811 Hose 3 8 ID Pushlock 16 0 order by inch 34 481507 Insert Filler Neck 35 04001 01 Bolt Hex Head 1 4 20 x 3 4 36 04...

Page 60: ...O G TO G TO H TO H TO I TO I J J 2 3 4 5 6 9 8 7 5 6 18 19 10 11 12 13 14 15 16 17 32 33 21 20 22 63 62 23 24 25 26 29 28 27 25 34 25 35 36 37 30 39 22 38 37 40 41 31 25 30 34 34 25 25 35 25 27 28 29...

Page 61: ...art No No Description 27KA 72 CUTTER DECK FUEL AND HYDRAULIC SYSTEM 33 48657 Pad Rubber 34 48350 05 Elbow 90 Degree 7 8 14 THD 35 48938 02 Bushing 7 8 14 JIC x 3 4 16 O Ring 36 422353 Support Bracket...

Page 62: ...58 Section 8 ELECTRICAL SYSTEM KOHLER 21 32 1 2 3 4 5 6 12 13 17 STT 2001 ESKH 10 10 11 17 18 15 14 19 20 22 23 24 25 32 26 27 28 29 30 14 15 9 10 11 8 B B 7 15 14 16 A 31 18 A C C...

Page 63: ...0 01 Screw Phillips Washer Head 10 32 x 1 2 19 481638 Switch Interlock Seat 20 04001 44 Bolt Hex Head 1 4 20 x 1 2 21 48029 18 Cable Battery Red 20 22 04020 02 Nut Hex 1 4 20 23 48029 07 Cable Battery...

Page 64: ...8 21 32 33 1 2 3 4 5 6 12 13 17 STT99ESKA 10 10 11 17 18 15 14 19 20 22 23 24 25 34 32 26 27 28 29 30 ELECTRICAL SYSTEM KAWASAKI 14 15 9 10 11 8 B B 7 15 14 16 A 31 18 A C C 35 ELECTRICAL SYSTEM 22HP...

Page 65: ...Switch Interlock Seat 20 04001 44 Bolt Hex Head 1 4 20 x 1 2 21 48029 12 Cable Battery Red 36 22 04020 02 Nut Hex 1 4 20 23 48029 07 Cable Battery Black 24 48030 09 Clamp Cable 1 2 ID 25 48030 10 Cla...

Page 66: ...ction 8 ELECTRICAL SYSTEM 23HP 27HP KAWASAKI 21 32 33 1 2 3 4 5 6 12 13 17 STT2001 23 27 ESKA 10 10 11 17 18 15 14 19 20 22 23 24 25 34 32 26 27 28 29 30 14 15 9 10 11 8 B B 7 15 14 16 A 31 18 A C C 3...

Page 67: ...Interlock Seat 20 04001 44 Bolt Hex Head 1 4 20 x 1 2 21 48029 12 Cable Battery Red 36 22 04020 02 Nut Hex 1 4 20 23 48029 07 Cable Battery Black 24 48030 09 Clamp Cable 1 2 ID 25 48030 10 Clamp Cable...

Page 68: ...RAULIC PUMP ASSEMBLY 390S0167 11 4 9 11 2 12 10 6 8 13 7 18 5 14 15 16 17 19 20 21 22 1 29 23 24 30 25 26 28 27 3 Overhaul Seal Kit BDP 10L HYDRAULIC PUMP ASSEMBLY FOR STT 22KA STT 23CH STT 23KA STT 2...

Page 69: ...G 70079 Cylinder Block Kit 15 HG 2003014 Block Spring 16 HG 2003017 Block Thrust Washer 17 HG 2003044 Roller Thrust Bearing 18 HG 2003087 Swash Plate 19 HG 2003005 TrunnionArm 20 HG 2000015 Guide Slot...

Page 70: ...ERATOR S MANUAL 481039 CUTTING HEIGHT 6 5 5 5 4 5 4 3 5 3 2 5 2 1 5 1 481543 481568 FORWARD REVERSE F R 11 481669 PULL OUT TO ENGAGE ON START PUSH IN TO DISENGAGE OFF MOWER DECK Heavy Duty Commercial...

Page 71: ...ve tires 12 psi Caster tires 25 psi To move machine without running the engine rotate both dump valve levers located at the LH side of the pumps CCW 1 2 turn to freewheel positions Return levers to or...

Page 72: ...AMP RED BRN BLU BLK GRN GRN WHT RED BLK ENGINE HARNESS RED YEL BLK BLK ELECTRICAL SCHEMATIC KOHLER RED YEL STT99SKH BLK RED RED RH NEUTRAL SWITCH LH NEUTRAL SWITCH RED RED WHT RED WHT YEL A B C D E F...

Page 73: ...WHT RED BLK ENGINE HARNESS RED YEL GRN WHT BLK BLK ELECTRICAL SCHEMATIC 22HP KAWASAKI RED YEL STT99SKA BLK BLK RED RED RH NEUTRAL SWITCH LH NEUTRAL SWITCH RED RED WHT RED WHT YEL A B C D E F G H YEL...

Page 74: ...ENGINE HARNESS RED YEL GRN WHT BLK BLK ELECTRICAL SCHEMATIC 23HP 27HP KAWASAKI RED YEL STT2001 23 27HP SKA BLK BLK RED RED RH NEUTRAL SWITCH LH NEUTRAL SWITCH RED RED WHT RED WHT YEL A B C D E F G H...

Page 75: ...71 Section 8 NOTES...

Page 76: ...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 warrant...

Page 77: ...PART NO 03092 PRINTED 7 00 PRINTED IN USA 2000 SCAG POWER EQUIPMENT DIVISION OF METALCRAFT OF MAYVILLE INC...

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