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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).
Table of Contents Table of Contents SECTION 1 - GENERAL INFORMATION ...................1 1.1 INTRODUCTION ............................1 1.2 DIRECTION REFERENCE ...........................1 1.3 SERVICING THE ENGINE AND DRIVE TRAIN COMPONENTS ..............1 1.4 SYMBOLS ..............................2 SECTION 2 - SAFETY INFORMATION ..................3 2.1 INTRODUCTION ............................3 2.2 SIGNAL WORDS ............................3 2.3 BEFORE OPERATION CONSIDERATIONS ....................3 2.4 TESTING THE SAFETY INTERLOCK SYSTEM ..................4...
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Table of Contents 4.13 MOVING MOWER WITH ENGINE STOPPED ..................20 4.14 RECOMMENDATIONS FOR MOWING ....................20 4.15 ADJUSTING CUTTING HEIGHT ......................21 4.16 TOWING (OPTIONAL HITCH ACCESSORY)...................21 SECTION 5 - TROUBLESHOOTING CUTTING CONDITIONS ..........22 SECTION 6 - ADJUSTMENTS ....................25 6.1 PARKING BRAKE ADJUSTMENT ......................25 6.2 TRAVEL ADJUSTMENTS ..........................25 6.3 THROTTLE CONTROL AND CHOKE ADJUSTMENTS ................27 6.4 BELT ADJUSTMENT ..........................27...
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Table of Contents SECTION 8 - ILLUSTRATED PARTS LIST ................42 SCAG APPROVED ATTACHMENTS AND ACCESSORIES................42 48V & 52V CUTTER DECKS ...........................44 61V CUTTER DECK ............................46 CUTTER DECK CONTROLS ...........................48 SHEET METAL COMPONENTS ........................50 STCII FOLDABLE ROLL-OVER PROTECTION SYSTEM ................52 STCII SUSPENSION SEAT ..........................54 DRIVE SYSTEM COMPONENTS ........................56 ENGINE &...
Attachments and accessories manufactured by companies industry. However, the prolonged life and maximum other than Scag Power Equipment are not approved for use efficiency of your mower depends on you following the on this machine. See Section 8, Paragraph 8-1.
Section 1 1.4 SYMBOLS SYMBOL DESCRIPTION SYMBOL DESCRIPTION Choke Transmission Parking Brake Spinning Blade 48071S On/Start Spring Tension on Idler Off/Stop Falling Hazard Thrown Object Hazard Fast Slow Continuously Variable - Linear Cutting Element - Basic Symbol Pinch Point Cutting Element - Engage 481039S Hour meter/Elapsed Operating Hours Cutting Element - Disengage...
Section 2 SAFETY INFORMATION 2.1 INTRODUCTION DANGER Your mower is only as safe as the operator. Carelessness or operator error may result in serious bodily injury The signal word “DANGER” denotes that an extremely or death. Hazard control and accident prevention are hazardous situation exists on or near the machine that dependent upon the awareness, concern, prudence, and could result in high probability of death or irreparable injury...
Use only approved containers. Authorized Scag Power Equipment Dealer immediately to 13. See Section 7.5 ENGINE FUEL SYSTEM for fueling have the safety interlock system repaired.
Section 2 2. Sit in the seat in the operating position, engage the 2. Reduce speed and exercise extreme caution on parking brake, move either of the steering control slopes and in sharp turns to prevent tipping or loss handles out of the neutral lock position, move the of control.
Section 2 13. Mow only in daylight or good artificial light. 22. Tie the mower down securely using straps, chains, cable, or ropes. Both front and rear straps must be 14. NEVER raise the deck with the blades engaged. directed down and outward from machine. 15.
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Section 2 UPRIGHT AND WARNING LOCKED POSITION There is no roll-over protection when the roll bar is in the down position. Lower the roll bar only 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.
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Section 2 1. Check the full length of the seat belt webbing for WARNING cuts, wear, fraying, dirt and stiffness. See Figure 2-3. 2. Check the seat belt webbing in areas exposed to Reduce speed when turning, operating on slopes, ultra violet rays from the sun or extreme dust or slick or wet surfaces.
Section 2 2.7 MAINTENANCE CONSIDERATIONS & WARNING STORAGE 1. Never make adjustments to the machine with the Hydraulic fluid is under high pressure and can engine running unless specifically instructed to do penetrate skin causing injury. If hydraulic fluid so. If the engine is running, keep hands, feet, and is injected into the skin, it must be surgically clothing away from moving parts.
Section 2 2.10 SAFETY AND INSTRUCTIONAL DECALS WARNING INSTALL BELT COVER BEFORE OPERATING MACHINE READ OPERATOR'S MANUAL 483402 FORWARD 483407 REVERSE WARNING Operation of this equipment may create sparks that can start fires around dry vegetation. A spark arrestor may be required. 483633 The operator should contact local fire agencies for laws...
(ON) position. will be prevented from starting. If additional information or 11. Water Temperature Indicator (Figure 4-1). Used service is needed, contact your Scag Power Equipment on Liquid Cooled Models Only. Indicates the Dealer. operating temperature of the engine. If the engine temperature exceeds the maximum preset value, the 4.1 TIGER EYE INSTRUMENT...
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Section 4 SERVICE AIR OIL PRESSURE FILTER INDICATOR INDICATOR WATER TEMPERATURE GLOW PLUG SERVICE ENGINE INDICATOR INDICATOR INDICATOR PARKING BRAKE VOLTMETER INDICATOR INDICATOR SEAT INDICATOR NEUTRAL INDICATOR INDICATOR HOUR METER INDICATOR Figure 4-1. Tiger Eye Advanced Monitoring System SUSPENSION SEAT CONTROL KNOB DECK LIFT CUTTING HEIGHT...
Section 4 4.2 CONTROLS IDENTIFICATION 1. Ignition Switch (Figure 4-2). The ignition switch is used to start the engine and has three positions; OFF, ON, and START. 2. Mower Deck Switch (Figure 4-2). Used to engage PUSH BRAKE PEDAL and disengage the mower drive system. Pulling up FORWARD THEN RELEASE on the switch will engage the deck drive.
If the safety interlock system release the cutter deck for normal mowing. does not operate as described below, contact your local Authorized Scag Power Equipment Dealer immediately to 14. Seat Suspension Control Knob (Figure 4-2). Used have the safety interlock system repaired.
Section 4 4.5 INITIAL RUN-IN PROCEDURES 9. Allow engine to warm before operating the mower. 4.7 GROUND TRAVEL AND STEERING FIRST DAY OF USE OR APPROXIMATELY 20 HOURS 1. Check all belts for proper alignment and wear at 2, 4 - IMPORTANT - and 8 hours.
Section 4 4.8 ENGAGING THE DECK DRIVE (CUTTER - IMPORTANT - BLADES) Do not travel forward over a curb. The mower will hang up on the curb. Raise the deck and travel 1. Set the throttle at about 3/4 speed. Do not attempt to backwards over the curb at a 45 degree angle.
Section 4 4.11 AFTER OPERATION 4.9 HILLSIDE OPERATION 1. Wash the entire mower after each use. Do not use high pressure spray or direct the spray onto WARNING electrical components. - IMPORTANT - DO NOT operate on steep slopes. To check a slope, Do not wash a hot or running engine.
Section 4 4.13 MOVING MOWER WITH ENGINE 3. Cut grass when it is dry and not too tall. Do not cut STOPPED grass too short (cut off 1/3 or less of existing grass for best appearance). Mow frequently. To “free-wheel” or move the mower around without the 4.
Section 4 4.15 ADJUSTING CUTTING HEIGHT The mower deck can be adjusted from a height of 1 inch to 5 inches at 1/4-inch intervals. To adjust the cutting height: WARNING DO NOT adjust the cutting height with the mower blades rotating. Disengage the power to the cutter DECK RELEASE blades and then adjust cutting height.
Section 5 TROUBLESHOOTING CUTTING CONDITIONS CONDITION CAUSE CURE STRINGERS - OCCASIONAL Low engine RPM Run engine at full RPM BLADES OF UNCUT GRASS 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...
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Section 5 TROUBLESHOOTING CUTTING CONDITIONS (CONT'D) CONDITION CAUSE CURE U N E V E N C U T O N F L AT Lift worn from blade Replace blade GROUND - WAVY HIGH-LOW APPEARANCE, SCALLOPED Blade upside down Mount with cutting edge toward ground CUT, OR ROUGH CONTOUR Deck plugged, grass accumulation Clean underside of deck...
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Section 5 TROUBLESHOOTING CUTTING CONDITIONS (CONT'D) CONDITION CAUSE CURE SCALPING - BLADES HITTING Low tire pressures Check and adjust pressures DIRT OR CUTTING VERY CLOSE TO THE GROUND 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...
Section 6 ADJUSTMENTS 6.1 PARKING BRAKE ADJUSTMENT WARNING PULL BACK ON PARKING BRAKE Do not operate the mower if the parking brake LATCH is not operable. Possible severe injury could PUSH BRAKE PEDAL FORWARD result. The parking brake linkage should be adjusted whenever the parking brake lock latch is placed in the “ENGAGE”...
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Section 6 NEUTRAL ADJUSTMENT TRACKING ADJUSTMENT 1. Be sure the dump valve levers are in the run position and the steering control levers are in the neutral lock CAUTION position. 2. With an operator in the seat, start the engine and Stop the engine and remove the key from the disengage the parking brake.
Section 6 - NOTE - 6.5 BELT ALIGNMENT If after making the adjustment as outlined in step 2A, the machine creeps forward or backward, Belt alignment is important for proper performance of perform the neutral adjustment. See Neutral your Scag mower. If you experience frequent belt wear Adjustment on page 26.
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Section 6 2. Turn the adjustment bolts on the front and rear deck level links clockwise until the cutter deck is level between both sides. See Figure 6-5. 3. Tighten the two (2) elastic stop nuts to secure the cutter deck in the proper position. CUTTER DECK PITCH ADJUST HERE The pitch of the cutter deck should be equal between...
Section 6 6.7 CUSTOM-CUT BAFFLE ADJUSTMENT The Custom-Cut Baffle is designed to deliver optimum airflow and superior cutting performance in any type of CONTROL ROD grass. The Custom-Cut Baffle can be raised or lowered to precisely tailor the deck's performance for the type of grass being cut.
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Section 6 ADJUSTMENT NUTS ADJUSTMENT NUTS Figure 6-12. Clutch Air Gap Adjustment 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.
Section 7 MAINTENANCE 7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS HOURS PROCEDURE COMMENTS BREAK-IN 100 200 500 (FIRST 10) Check all hardware for tightness Check hydraulic oil level See paragraph 7.3 C h e c k a l l b e l t s f o r p r o p e r See paragraph 7.8 alignment Check hydraulic fittings and hoses...
Section 7 7.3 HYDRAULIC SYSTEM B. CHANGING HYDRAULIC OIL The hydraulic oil should be changed after every 500 hours A. CHECKING HYDRAULIC OIL LEVEL or annually, whichever occurs first. The oil should also be changed if the color of the fluid has become black or milky. The hydraulic oil level should be checked after the first 10 A black color and/or a rancid odor usually indicates possible hours of operation.
Section 7 B. CHANGING ENGINE CRANKCASE OIL 4. Fill the reservoir to 2" inches from the top of the filler neck with 20W50 motor oil (Scag p/n 486255 - 1 Quart or p/n 486254 - 1 Gallon). After the first 20 hours of operation, change the engine crankcase oil and replace the oil filter.
Section 7 10. Replace gas cap and tighten until it ratchets. FILLER NECK INSERT B. REPLACING IN-LINE FUEL FILTER ELEMENTS FUEL LEVEL The engine fuel filter should be replaced after every 500 hours of operation or annually, whichever occurs first. 1.
Section 7 7.7 BATTERY A. CHARGING THE BATTERY Refer to the battery charger’s manual for specific WARNING instructions. Under normal conditions the engine’s alternator will have no problem keeping a charge on the battery. If the battery Lead-acid batteries produce flammable and has been completely discharged for a long period of time, explosive gases.
Section 7 - NOTE - - NOTE - If you experience frequent belt wear or breakage, Keep the blades sharp. Cutting with dull blades not see your authorized Scag service center for belt only yields a poor mowing job, but slows the cutting adjustment.
Section 7 2. Raise the mower deck to the highest position. Place HEX NUT-TORQUE the lanyard pin in the highest cutting height position TO 75 LB-FT to prevent the cutter deck from falling. 3. Secure the cutter blades to prevent them from 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.
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. 1. After each use, wash the mower and cutter deck. Use cold water and automotive cleaners. Do not use pressure cleaners.
Section 8 ILLUSTRATED PARTS LIST 8.1 SCAG APPROVED ATTACHMENTS AND 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: • GC-3B - 901S (Requires a 901E, 48V/52V Install Kit) or (901F, 61V STCII Install Kit) •...
Section 8 STCII ELECTRICAL SCHEMATIC Position PTO Switch Legend ON (UP) Position Key Switch Legend G + M + A DOWN (OFF) B + L + A START B + L + S RELAY KEY SWITCH 12V OUTLET 5 AMP SWITCH FUSE TIGER EYE...
Section 8 STCII - KAWASAKI 26FT EFI ELECTRICAL SCHEMATIC Position PTO Switch Legend ON (UP) Position Key Switch Legend G + M + A B + L + A DOWN (OFF) START B + L + S KEY SWITCH 5 AMP SWITCH 12V OUTLET FUSE...
Section 8 STCII - KOHLER CV EFI / 32BV ELECTRICAL SCHEMATIC Position PTO Switch Legend ON (UP) Position Key Switch Legend G + M + A B + L + A DOWN (OFF) START B + L + S KEY SWITCH 5 AMP SWITCH 12V OUTLET...
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 compo- nents for evaluation.