Scag Power Equipment STC Operator's Manual
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Scag Power Equipment STC Operator's Manual

Stc series
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See also: Operator's Manual
MODEL STC
PART NUMBER 03091

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Summary of Contents for Scag Power Equipment STC

  • Page 1 MODEL STC PART NUMBER 03091...
  • Page 2 WARNING: 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.
  • Page 3 TABLE OF CONTENTS SUBJECT PAGE Section 1 - General Information Section 2 - Safety Information Section 3 - Specifications ...................... 8-9 Section 4 - Operating Instructions Section 5 - Troubleshooting Cutting Conditions ..............
  • Page 4 TABLE OF CONTENTS (CONT'D) SUBJECT PAGE Section 6 - Adjustments Section 7 - Maintenance...

  • Page 5: General Information

    Section 1 GENERAL INFORMATION 1.1 INTRODUCTION 1.2 DIRECTION REFERENCE 1.3 SERVICING THE ENGINE AND DRIVE TRAIN COMPONENTS SCAG Power Equipment SERIAL NUMBER Model Serial PLATE LOCATION STC 2K SPL Figure 1-1 Tractor Serial Number Plate Location...
  • Page 6 SYMBOL DESCRIPTION SYMBOL DESCRIPTION 48071S WARNING FALLING HAZARD USE ONLY SCAG APPROVED RIDING ATTACHMENTS SEE OPERATOR'S MANUAL 481109...
  • Page 7 SYMBOL DESCRIPTION SYMBOL DESCRIPTION 481039S...

  • Page 8: Safety Information

    Section 2 SAFETY INFORMATION 2.1 INTRODUCTION WARNING: CAUTION: 2.2 SIGNAL WORDS 2.3 BEFORE OPERATION CONSIDERATIONS Signal Word:...
  • Page 9 Section 2 2.3 BEFORE OPERATION CONSIDERATIONS (CONT'D) -NOTE- WARNING: This machine is equipped with an interlock system intended to protect the operator and others from injury. This is accomplished by preventing the 2.4 OPERATION CONSIDERATIONS 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.
  • Page 10 Section 2 2.4 OPERATION CONSIDERATIONS (CONT'D) 2.5 MAINTENANCE CONSIDERATIONS...
  • Page 11 Section 2 2.6 SAFETY AND INSTRUCTIONAL DECALS WARNING INSTALL BELT COVER BEFORE OPERATING MACHINE READ OPERATOR'S MANUAL 481039 FORWARD REVERSE 481568...

  • Page 12: Specifications

    Section 3 SPECIFICATIONS 3.1 ENGINE 3.2 ELECTRICAL 3.3 TRACTOR...
  • Page 13 Section 3 3.3 TRACTOR (CONT'D) 3.4 CUTTER DECK 3.6 HYDRAULIC SYSTEM 3.7 PRODUCTIVITY...

  • Page 14: Operating Instructions

    Section 4 OPERATING INSTRUCTIONS CAUTION: Do not attempt to operate this mower unless you have read this manual. Learn the location and purpose of all controls and instruments before you operate this mower. 4.1 CONTROLS AND INSTRUMENT IDENTIFICATION DECK LIFT LEFT STEERING RIGHT STEERING CONTROL...
  • Page 15 Section 4 DUMP VALVE CONTROL LEVERS STC99DVC Figure 4-2 Dump Valve Control 4.2 SAFETY INTERLOCK SYSTEM 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.
  • Page 16 Section 4 4.3 INITIAL RUN-IN PROCEDURES (First Day of Use or Approximately 10 Hours) 4.5 GROUND TRAVEL AND STEERING 4.4 STARTING THE ENGINE CAUTION: DO NOT USE STARTING FLUIDS. Use of starting fluids in the air intake system may be potentially explosive or cause a “runaway”...
  • Page 17 Section 4 4.6 ENGAGING THE DECK DRIVE (CUTTER BLADES) 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.
  • Page 18 Section 4 4.9 AFTER OPERATION 4.7 HILLSIDE OPERATION 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.
  • Page 19 Section 4 4.10 REMOVING CLOGGED MATERIAL 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. 4.11 MOVING MOWER WITH ENGINE STOPPED 4.12 RECOMMENDATIONS FOR MOWING...
  • Page 20 Section 4 4.13 ADJUSTING CUTTING HEIGHT LANYARD PIN WARNING: Do not adjust the cutting height with the mower blades rotating. Disengage the power to the cutter blades and then adjust cutting height. STC99ACH HEIGHT ADJUSTMENT PEDAL DECK RELEASE LEVER STC99DRL...

  • Page 21: Troubleshooting Cutting Conditions

    Section 5 TROUBLESHOOTING CUTTING CONDITIONS CAUSE CURE CONDITION Stringers - Occasional Blades of Uncut Grass Width of Deck SGB020 Streaking - Strips of Uncut Grass in Cutting Path Width of Deck SGB018 Streaking - Strips of Uncut Grass Between Cutting Paths Width Width Deck...
  • Page 22 Section 5 TROUBLESHOOTING (CONT'D) CAUSE CURE CONDITION Uneven Cut on Flat Ground - Wavy High-Low Appearance, Scalloped Cut, or Rough Contour Width of Deck SGB020 Uneven Cut on Uneven Ground - Wavy Appearance, High-Low Scalloped Cut, or Rough Contour Width of Deck SGB021 Sloping Ridge Across Width of Cutting Path...
  • Page 23 Section 5 TROUBLESHOOTING (CONT'D) CAUSE CURE CONDITION Scalping - Blades Hitting Dirt or Cutting Very Close to the Ground Width of Deck SGB022 Step Cut - Ridge in Center of Cutting path Width of Deck SGB024 Slope Cut - Sloping Ridges Across Width of Cutting Path Width of Deck...
  • Page 24 Section 6 ADJUSTMENTS 6.1 PARKING BRAKE ADJUSTMENT WARNING: -NOTE- Do not operate the mower if the parking brake is not operable. Possible severe injury could result. Loosen Here Loosen Here 3-1/4" to 3-1/2" STC99BA LOOSEN HERE 1/8" 390S0153 TRAVEL ADJUSTMENTS...
  • Page 25 Section 6 Neutral Adjustment LOOSEN HERE LOOSEN HERE ADJUST HERE ADJUST HERE LEFT STEERING CONTROL ROD RIGHT STEERING CONTROL ROD STC2KLSCRA STC2KRSCRA...
  • Page 26 Section 6 Tracking Adjustment CAUTION: Stop the engine and remove the key from the ignition before making any adjustments. Wait for all moving parts to come to a complete stop before beginning work. -NOTE- CAUTION: The engine and drive unit can get hot during operation causing burn injuries.
  • Page 27 Section 6 6.6 CUTTER DECK ADJUSTMENTS -NOTE- Cutter Deck Pitch Cutter Deck Level -NOTE- LOCK NUT CUTTER DECK ADJUSTING BOLT STC99CDA...
  • Page 28 Section 6 Cutter Deck Height -NOTE- LANYARD PIN LOOSEN HERE CONTROL ROD HEIGHT ADJUSTMENT PEDAL STC99CDHA 1/4" DECK STOP STC99CDS...
  • Page 29 Section 7 MAINTENANCE 7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS HOURS Break-In 40 100 200 500 Procedure Comments (First 10)
  • Page 30 Section 7 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS (CONT'D) HOURS Break-In 40 100 200 500 Procedure Comments (First 10) 7.2 LUBRICATION - GREASE FITTING LUBRICATION CHART (SEE FIGURE 7-1) LUBRICATION NO. OF LOCATION INTERVAL LUBRICANT PLACES...
  • Page 31 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 ) 390S0145A Figure 7.1 Lubrication Fitting Points...
  • Page 32 Section 7 7.3 HYDRAULIC SYSTEM B. Changing Hydraulic Oil A. Checking Hydraulic Oil Level HYDRAULIC OIL DRAIN PLUG STC99HODP HYDRAULIC OIL RESERVOIR STC99HOR...
  • Page 33 Section 7 C. Changing Engine Oil Filter ENGINE OIL ENGINE OIL FILLER DRAIN PLUG HYDRAULIC OIL FILTER ENGINE OIL FILTER STC99HOF STC99KEOP ENGINE OIL FILLER ENGINE OIL FILTER ENGINE OIL 7.4 ENGINE OIL DRAIN PLUG STC99EOP A. Checking Engine Crankcase Oil Level 7.5 ENGINE FUEL SYSTEM A.
  • Page 34 Section 7 7.6 ENGINE AIR CLEANER A. Cleaning and/or Replacing Air Cleaner Element To avoid injury from burns, allow the mower to cool before removing the fuel tank cap and refueling. FUEL FILTER 7.7 BATTERY STC2001KFF A. Checking Electrolyte Level and Cleaning Battery FUEL FILTER STC99EFF...
  • Page 35 Section 7 WARNING: WARNING: Battery posts, terminals, and related acces- Electric storage battery fluid contains sulfuric sories contain lead and lead compounds, acid which is POISON and can cause SEVERE chemicals known to the State of California CHEMICAL BURNS. Avoid contact of fluid to cause cancer and reproductive harm.
  • Page 36 Section 7 WARNING: WARNING: BATTERIES PRODUCE EXPLOSIVE Always wear proper hand and eye protection GASES. Charge the battery in a well when working with cutter blades. ventilated space so gases produced while charging can dissipate. WARNING: Do not attempt to straighten a bent blade, and never weld a broken or cracked blade.
  • Page 37 Section 7 HEX NUT-TORQUE ANGLE BLADE BACK TO 75 LB-FT DO NOT CUT IN SPINDLE CUTTER SHAFT DECK "X" MUST NOT EXCEED HEX HEAD 1/3 BLADE WIDTH BOLT / NUT 390S0139 SPINDLE ASSEMBLY CUTTER BLADE SPACER CUTTER BLADE WASHER HEX HEAD BOLT 390S0160 C.
  • Page 38 Section 7 7.11 BODY, DECK, AND UPHOLSTERY CAUTION: Do not wash any portion of the equipment while it is hot. Do not wash the engine; use compressed air.
  • Page 39 Section 8...
  • Page 40 Section 8 40" CUTTER DECK 44 61 63 STC 2K CD40...
  • Page 41 Section 8 40" CUTTER DECK Ref. Part Ref. Part Description Description 481035 Nut, Special 1-1/16-18 461309 Cutter Deck (Includes decals) 48114-04 Grease Fitting 04001-01 Bolt, Hex Head 1/2-20 x 3/4” 48677 Valve, Grease Relief 04020-09 Nut, 5/8-11 UNC 482245 Spring, Discharge Chute 48926 Hub, Tapered 1-1/8”...
  • Page 42 Section 8 48A”& 52A" CUTTER DECKS 59 60 STC 2001 CD4852...
  • Page 43 Section 8 48A”& 52A" CUTTER DECKS Ref. Part Ref. Part No. No. Description 48 52 No. No. Description 48 52 43312 Spacer, Outside 461369 Cutter Deck Advantage 43296 Spacer, Inside 461376 Cutter Deck Advantage 481025 Seal, Lower 04003-04 Bolt, Carr. 5/16-18 x 1” 43297 Bushing, Bottom 04019-04...
  • Page 44 Section 8 CUTTER DECK CONTROLS 40", 48A” & 52A" DECKS CUTTER DECK STC 2K CDC...
  • Page 45 Section 8 CUTTER DECK CONTROLS 40", 48A” & 52A" DECKS Ref. Part Description 40” 48A” 52A” 481764 Rod, Deck Lift Linkage 04020-28 Nut, Jam 1/2-20 LH Thread 481766 Rod End, 1/2-20 Female Thread 04050-10 Retaining Ring, 1/2” External “E” 481560 Slide, Deck Height Adjust 43487 Pin, Deck Lift...

  • Page 46: Sheet Metal Components

    Section 8 SHEET METAL COMPONENTS 46 27 STC 2001 SMC...
  • Page 47 Main Frame Assembly w/decals 04001-19 Bolt, Hex Head 3/8-16 x 1” 451262 Plate, Engine Mounting 451276 Weldment, Caster Support (STC-40) 451278 Weldment, Caster Support (STC-48A & 52A) 481559 Cap, Grease 04021-20 Nut, Elastic Stop 1.0-14 481657 Bearing Set 482028-01 Plug, 1/4-28 481025 Seal, 2.0”...

  • Page 48: Drive System Components

    Section 8 DRIVE SYSTEM COMPONENTS STC 2K DSC...
  • Page 49 Section 8 DRIVE SYSTEM COMPONENTS Ref. Part No. No. Description 04021-09 Nut, Elastic Stop 3/8-16 04021-05 Nut, Center Lock 3/8-16 481994 Spring 43376 Spacer 04001-159 Bolt, Hex Head 3/8-16 x 2-1/4” Grade 8 461305 Idler Arm, Pump Drive 04063-14 Key, 5 x 5 x 25mm 482009 Belt, Transmission 481048...

  • Page 50: Engine And Attaching Parts

    Section 8 ENGINE AND ATTACHING PARTS Kohler Only STC 2001 EAPKA...
  • Page 51 Flatwasher, 5/16-.375 x .875 x .083 04021-10 Nut, Elastic Stop 5/16-18 04030-04 Lockwasher, 3/8” 04001-47 Bolt, Hex Head 3/8-16 x 5” 9237 Rear Counterweights, STC * Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.

  • Page 52: Steering Components

    Section 8 STEERING COMPONENTS TO RH PUMP TO LH PUMP STC 2K SSC...
  • Page 53 Section 8 STEERING COMPONENTS Ref. Part No. No. Description 482340 Grip, Control Lever 461386 Handle Bar (Includes item 1) 04001-32 Bolt, Hex Head 3/8-16 x 1-1/4” 04030-04 Lock Washer, 3/8” 04041-07 Flatwasher, 3/8-.391 x .938 x .105 423056 Spacer 04060-01 Roll Pin, Spring 5/32 x 3/4”...
  • Page 54 Section 8 BRAKE COMPONENTS STC 2K BSC...
  • Page 55 Section 8 BRAKE COMPONENTS Ref. Part No. No. Description 451224 Brake Lever 04063-20 Key, 1/4 x 1/4 x 1” 482061 Bushing, Self Align 04001-145 Bolt, Hex Head 1/2-13 x 3-1/2” 04001-153 Bolt, Hex Head 1/2-13 x 2-1/4” 04021-19 Nut, 1/2-13 Center Lock 481529 Wheel Motor Ross 04063-25...
  • Page 56 Section 8 FUEL AND HYDRAULIC SYSTEM ENGINE STC 2K FHS...
  • Page 57 Section 8 FUEL AND HYDRAULIC SYSTEM Ref. Part Ref. Part No. No. Description No. No. Description 48058 Fuel Hose, 1/4 ID 48551 Pump, Sunstrand BDP-10L 117 423204 Bracket Fuel Valve 48350-09 Elbow, 90 Degree 3/8 x 3/8” 423313 Bracket, Hour Meter (Kohler Aegus Only) 48353-06 Coupling 48059-01...
  • Page 58 Section 8 ELECTRICAL SYSTEM (KAWASAKI & KOHLER) STC 2001 ESKA...
  • Page 59 Section 8 ELECTRICAL SYSTEM (KAWASAKI & KOHLER) Ref. Part Description 48023 Hourmeter 48298 Fuse, 20 amp 48017-02 Key, Ignition 48017-04 Nut, Hex 5/8-32 48017-03 Lockwasher, 5/8” Internal 461397 Electric PTO Clutch 48798 Switch, Ignition 481687 Switch, PTO 48788 Relay 04031-01 Lock Washer, #10 External Tooth 04020-01 Nut, Hex #10-32...
  • Page 60 Section 8 HYDRAULIC PUMP ASSEMBLY HYDRAULIC PUMP ASSEMBLY 390S0167...

  • Page 61: Hydraulic Pump Assembly

    Section 8 HYDRAULIC PUMP ASSEMBLY Ref. Part Description HG 2513017 Housing Kit (Includes Housing, Journal Bearing) HG 2513016 End Cap HG 9004800-2506 Straight Headless Pin HG 9007314-0810 Hex Head Screw 5/16-18 x 1.0 HG 2003067 End Cap Gasket HG 2513027 Charge Pump Kit (Includes Charge Cover, Gerotor Assy., O-Ring) HG 50273 Gerotor Assembly...

  • Page 62: Replacement Decals And Information Plates

    48404 INSTALL BELT COVER BEFORE CUTTING OPERATING MACHINE HEIGHT READ OPERATOR'S MANUAL 481039 SLOW START CHOKE FAST MOWER DECK PULL OUT TO ENGAGE 482214 PUSH IN TO DISENGAGE 482216 FUEL VALVE FUEL TANK FUEL TANK 482213 482101 STC 2001 RDP1...
  • Page 63 Decal, Belt Cover 482214 Decal, Instrument Panel 482213 Decal, Fuel Valve Position 482101 Decal, Cutting Height 482216 Decal, Control Panel 482118 Decal, Seat Support 482219 Decal, Rear Bumper 482166 Decal, Front Footplate 482165 Decal, Discharge Chute 482219 482166 STC 2K RDP2...
  • Page 64 RH NEUTRAL LH NEUTRAL SWITCH SWITCH RED/WHT SEAT SWITCH INSTRUMENT PANEL BRAKE INTERLOCK SWITCH SWITCH GRN/BLK YEL/RED PINK LT/BLU HOURMETER MODULE PLUG RED/YEL LT/BLU MOWER ENGAGE SWITCH GRN/WHT GRN/BLK RED/YEL RELAY YEL/RED RED/YEL FUSES BATTERY 20 AMP STC 2K SKH...
  • Page 65 LIMITED WARRANTY - COMMERCIAL EQUIPMENT...

This manual is also suitable for:

Stc40-17kaStc48a-19kaStc48a-20cvStc48a-21kaStc52a-21kaStc52a-23ka ... Show all

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