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WARNING: FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN SERIOUS INJURY. * Keep all shields in place, especially the grass discharge chute. * Before performing any maintenance or service, stop the machine and remove the spark plug wire and ignition key. * If a mechanism becomes clogged, stop the engine before cleaning.
TABLE OF CONTENTS SUBJECT PAGE Section 1 - General Information Introduction ..........................1 Directional Reference ......................1 Servicing the Engine and Drive Train Components ..............1 Symbols ..........................2-3 Section 2 - Safety Information Introduction ..........................4 Signal Words ...........................4 Before Operation Considerations ...................4 Operation Considerations ......................5 Maintenance Considerations ....................6 Safety and Instructional Decals ....................7...
If additional information or service is needed, contact your obligation. Scag Power Equipment Dealer. 1.2 DIRECTION REFERENCE We encourage you to contact your dealer for repairs. All Scag dealers are informed of the latest methods to service this equipment and provide prompt and efficient service in The “Right”...
ISO Symbols CE Mark SYMBOL DESCRIPTION SYMBOL DESCRIPTION Choke Transmission Parking Brake Spinning Blade 48071S On/Start Spring Tension on Idler Off/Stop WARNING Falling Hazard FALLING HAZARD USE ONLY SCAG APPROVED RIDING ATTACHMENTS SEE OPERATOR'S MANUAL 481109...
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SYMBOL DESCRIPTION SYMBOL DESCRIPTION Slow Fast Cutting Element - Basic symbol Continuously Variable - Linear Cutting Element - Engage Pinch Point 481039S Hourmeter/Elapsed Operating Hours Cutting Element - Disengage Read Operator's Manual Thown Object Hazard Keep Bystanders Away...
Section 2 SAFETY INFORMATION 2.1 INTRODUCTION Your mower is only as safe as the operator. Carelessness The signal word “DANGER” denotes that an extremely or operator error may result in serious bodily injury or death. Hazard control and accident prevention are dependent upon hazardous situation exists on or near the machine that could result in high probability of death or irreparable injury if the awareness, concern, prudence, and proper training of...
Section 2 2.3 BEFORE OPERATION 11. Keep flammable objects (cigarettes, matches, etc.), open flames and sparks away from the fuel tank and CONSIDERATIONS (CONT'D) fuel container. 5. DO NOT wear loose fitting clothing that could get 12. Equipment must comply with the latest requirements tangled in moving parts.
Section 2 2.4 OPERATION CONSIDERATIONS 14. The machine and attachments should be stopped and inspected for damage after striking a foreign object, (CONT'D) and damage should be repaired before restarting and operating the machine. 3. To prevent tipping or loss of control, start and stop smoothly, avoid unnecessary turns and travel at reduced 15.
Section 3 SPECIFICATIONS 3.1 ENGINE General Type ................Heavy Duty Industrial/Commercial Gasoline Brand ..................Kawasaki, Kohler, Honda Horsepower ................19 HP (Spec.#FH601V) (Scag Model STC48A-19KA) 20 HP (Spec.#CV20S) (Scag Model STC48A-20CV) 21 HP (Spec.#FH641V) (Scag Model STC48A-21KA, STC52A-21KA) 23 HP (Spec.#FH680V) (Scag Model STC52A-23KA, STC61A-23KA) 24 HP (Spec.
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Section 3 3.3 TRACTOR (CONT'D) -NOTE- The machine will travel at 10 mph for Travel Speed: transport purposes. For best cutting Forward ................. 0-10 MPH performance the forward travel speed Reverse .................. 0-5 MPH should be adjusted depending upon the 3.4 CUTTER DECK cutting conditions.
Section 4 OPERATING INSTRUCTIONS 1. Ignition Switch (Figure 4-1). Used to start the CAUTION: engine and has three positions; OFF, ON, and START. Do not attempt to operate this mower unless you have read this manual. Learn the location and 2.
Section 4 5. Hourmeter (Figure 4-1). Indicates the number of DUMP VALVE CONTROL LEVERS hours the engine has been operated. It operates whenever the ignition key switch is in the ON position. It can be used to keep track of maintenance intervals and the amount of time required to perform various tasks.
Section 4 4.3 INITIAL RUN-IN PROCEDURES (First 6. Turn the ignition key to the START position and release the key as soon as the engine starts. Do not Day of Use or Approximately 10 Hours) hold the key in the START position for more than 15 seconds at a time.
Section 4 To steer the mower right while traveling forward, pull the To steer right while traveling in reverse, allow the right right steering control lever back. The further the lever is steering control lever to move forward. The further the pulled back, the quicker the mower will turn right.
Section 4 3. To disengage the deck drive, push the switch in to 4.9 AFTER OPERATION the disengage position. 1. Wash the entire mower after each use. Do not use 4. Always operate the engine at full throttle to properly high pressure spray or direct the spray onto maintain cutting speed.
Section 4 4.11 MOVING MOWER WITH ENGINE STOPPED To “free-wheel” or move the mower around without the engine running, place the dump valve levers in the FREE-WHEEL position (Figure 4-2, Page 11). Disengage the parking brake and move the mower by hand.
Section 4 4.13 ADJUSTING CUTTING HEIGHT HEIGHT ADJUSTMENT PEDAL The mower deck can be adjusted from a height of 1-inch to 5-1/2 inches at 1/4-inch intervals. To adjust the cutting height: WARNING: LANYARD Do not adjust the cutting height with the mower blades rotating.
Section 5 TROUBLESHOOTING CUTTING CONDITIONS CAUSE CURE CONDITION 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 (CONT'D) CAUSE CURE CONDITION Uneven Cut on Flat Lift worn from blade Replace blade Ground - Wavy High-Low Blade upside down Mount with cutting edge toward Appearance, ground Scalloped Cut, or Rough Contour Deck plugged, grass accumulation Clean underside of deck Too much blade angle (deck pitch) Adjust pitch and level...
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Section 5 TROUBLESHOOTING (CONT'D) CAUSE CURE CONDITION Scalping - Blades Low tire pressures Check and adjust pressures Hitting Dirt or Cutting 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 and level Rough terrain...
Section 6 -NOTE- ADJUSTMENTS If this procedure does not achieve proper brake adjustment, please contact your authorized Scag 6.1 PARKING BRAKE ADJUSTMENT dealer. WARNING: STC2002BA Do not operate the mower if the parking brake is not operable. Possible severe injury could result.
Section 6 TRAVEL ADJUSTMENTS 3. Run the engine at full operating speed and check if the machine creeps forward or backwards. Neutral or tracking adjustments will need to be made if: 4. Adjust the RH wheel by loosening the jam nuts on the steering control rod and turning the rod until the A.
Section 6 Tracking Adjustment A. Stop the machine and place the steering control levers in the neutral position. Loosen the lock nuts securing the ball joints at each end of the CAUTION: RH steering control rod. Rotate the control rod to shorten the rod and tighten the lock nuts.
Section 6 6.6 CUTTER DECK ADJUSTMENTS 2. Loosen the elastic stop nut and move the bolt up or down in the slot to adjust the cutter deck until the distance from the top of the cutter deck to the floor Cutter deck level, pitch and height are set at the factory.
Section 6 Cutter Deck Height 3. Check the cutter deck cutting height by placing the lanyard pin in the 3" position on the cutting height index. Release the deck from the transport positon The cutter deck height adjustment is made to ensure that and allow the deck to move to the 3"...
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Section 6 To adjust the Custom-Cut Baffle height: CARRIAGE BOLT 1. Place the cutter deck in the transport position. 2. Remove the hardware securing the Custom-Cut Baffle to the cutter deck. (See Figure 6.7). -NOTE- 2002 CCB - 3-1/2" Setting BOTTOM SET OF HOLES FLATWASHER ELASTIC STOP...
Section 7 7.3 HYDRAULIC SYSTEM B. Changing Hydraulic Oil A. Checking Hydraulic Oil Level The hydraulic oil should be changed after every 500 hours 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 4. Fill the reservoir to 3-1/4" inches from the top of the filler neck with SAE 20W50 motor oil. 5. Replace the reservoir fill cap. Start the engine and ENGINE OIL FILLER drive forward and backward for two minutes. Check the oil level in the reservoir.
Section 7 B. Replacing In-Line Fuel Filter Element 2. Install a new fuel filter. Be sure it is installed in the proper direction. Secure to the fuel hose using the two clamps. The in-line fuel filter (Figure 7-7, Figure 7-8 ) should be replaced after every 500 hours of operation or annually, 7.6 ENGINE AIR CLEANER whichever occurs first.
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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.
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. 3. Check the cutter blades for straightness. If the cutter blades appear bent, they will need to be replaced.
Section 7 HEX NUT-TORQUE Angle Blade Back TO 75 LB-FT Do Not Cut In SPINDLE CUTTER SHAFT X Must NOT Exceed DECK 1/3 Blade Width 2002SGB033 Figure 7-9 Blade Sharpening HEX HEAD BOLT / NUT 2. Check the balance of the blade. If the blades are out SPINDLE of balance, vibration and premature wear can occur.
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.
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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 04040-15 Flatwasher, 5/16-.375 x .875 x .083 04060-01 Roll Pin, Spring 5/32 x 3/4”...
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Section 8 BRAKE COMPONENTS Ref. Part No. No. Description 04019-04 Nut, Serr. Flange 3/8-16 48807 Spring 04001-08 Bolt, Hex Head 5/16-18 x 3/4” 04001-163 Bolt, Hex Head 1/2-13 x 3-3/4” 04001-52 Bolt, Hex Head 1/2-13 x 2-1/2” 04021-19 Nut, 1/2-13 Center Lock 481529 Wheel Motor Ross 04063-25...
Section 8 REPLACEMENT DECALS AND INFORMATION PLATES 48404 FORWARD Hea vy- Duty REVERSE Comm e rcial 482100 481971 WARNING INSTALL BELT COVER BEFORE OPERATING MACHINE READ OPERATOR'S MANUAL 481039 STC 2002 RDP1...
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Section 8 REPLACEMENT DECALS AND INFORMATION PLATES Ref. Part Description 482285 Decal, Danger-Spining Blades 482286 Decal, Warning-Rotating Blades 481953 Decal, 48A 481954 Decal 52A 481425 Decal, Oil 48656 Decal, Patents 482100 Decal, Traction Control 481971 Decal, Heavy Duty Commercial 48404 Decal, Metalcraft - Made in USA 481039 Decal, Belt Cover...
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* Engines and electric starters are covered by the engine manufacturer’s warranty period. * Major drive system components are warranted for two (2) years by Scag Power Equipment. (Parts and labor 1st year; Parts only 2nd year) (Two year warranty exclude fittings, hoses, drive belts). The repair or replacement of the hydraulic pump or hydraulic motor will be at the option of Scag Power Equipment.