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OPERATOR’S MANUAL
MODEL STC
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.
© 2003 PART NO. 03134
SCAG POWER EQUIPMENT PRINTED 7/03
DIVISION OF META
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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. * Keep hands, feet and clothing away from power-driven parts. * Read this manual completely as well as other manuals that came with your mower. * Keep others
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TABLE OF CONTENTS SUBJECT PAGE Section 1 - General Information 1.1 Introduction .............................................................................................................................1 1.2 Directional Reference.............................................................................................................1 1.3 Servicing the Engine and Drive Train Components ................................................................1 1.3 Symbols .....................
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TABLE OF CONTENTS (CONT'D) SUBJECT PAGE Section 6 - Adjustments 6.1 Parking Brake Adjustment .................................................................................................... 21 6.2 Travel Adjustments ...............................................................................................................22 6.3 Throttle Control and Choke Adjustments .............................................................................. 23 6.4 Belt Adjustment .....................
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Section 1 GENERAL INFORMATION For pictorial clarity, some illustrations and figures in this 1.1 INTRODUCTION manual may show shields, guards or plates open or removed. Under no circumstances should your mower be operated Your mower was built to the highest standards in the without these devices in place. industry. However, the prolonged life and maximum efficiency of your mower depends on you following the All information is based upon product information operating, maintenance and adjustment i
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ISO Symbols CE Mark SYMBOL DESCRIPTION SYMBOL DESCRIPTION Choke Transmission Parking Brake Spinning Blade 48071S On/Start Spring Tension on Idler Off/Stop Oil WARNING Falling Hazard FALLING HAZARD USE ONLY SCAG APPROVED RIDING ATTACHMENTS 481109 SEE OPERATOR'S MANUAL 2
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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 3
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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. hazardous situation exists on or near the machine that could Hazard control and accident prevention are dependent upon the awareness, concern, prudence, and proper training of result in high probability of death or irreparable injury if proper precautions are not taken. the person
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Section 2 11. Keep flammable objects (cigarettes, matches, etc.), 2.3 BEFORE OPERATION 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. Do not operate the machine per SAE J137 and/or ANSI/ASAE S279 when driven wearing shorts; always wear adequate protective on public roads. clothing including long pants. Wearing saf
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Section 2 the attachments, setting the parking brake, stopping the 2.4 OPERATION CONSIDERATIONS engine, and removing the key. (CONT'D) 13. Disengage power to the attachments when transporting 3. To prevent tipping or loss of control, start and stop or when not in use. smoothly, avoid unnecessary turns and travel at reduced speed. 14. The machine and attachments should be stopped and inspected for damage after striking a foreign object, 4. When using any attachment, never direct the discharge and
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2. Whenever possible, avoid operating the machine near ditches, embankments and steep inclines. CAUTION: Hydraulic fluid is under high pressure. Keep body 3. Reduce speed when turning, operating on slopes, slick and hands away from pinholes or nozzles that eject or wet surfaces. Allow extra distance to stop. hydraulic fluid under high pressure. Hydraulic fluid under high pressure may have sufficient force 4. Stay off of slopes too steep for safe operation. To check to penetrate skin and cause s
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Section 2 2.7 SAFETY AND INSTRUCTIONAL DECALS 481039 482285 481568 482286 482290 482834 482709 482576 STC Safety Decals 8
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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
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Section 3 -NOTE- 3.3 TRACTOR (CONT'D) 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. Type: ........................
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Section 4 OPERATING INSTRUCTIONS 1. Ignition Switch (Figure 4-1). Used to start the engine and has three positions; OFF, ON, and CAUTION: START. Do not attempt to operate this mower unless you have read this manual. Learn the location and 2. Mower Deck Switch (Figure 4-1). Used to purpose of all controls and instruments before you engage and disengage the mower drive system. operate this mower. Pulling up on the switch will engage the deck drive. Pushing down on the switch will disengage the
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Section 4 DUMP VALVE 5. Hourmeter (Figure 4-1). Indicates the number of 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. 6. Fuse Holders (Figure 4-1). Two 20-amp fuses protect the mower’s electrical system. To replace fuses, pull fuse out of the socket and install a new fuse. 7. Left Steering Control (Figure 4-1
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Section 4 6. Turn the ignition key to the START position and 4.3 INITIAL RUN-IN PROCEDURES (First 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. Allow at least 60 seconds 1. Check all belts for proper alignment and wear at 2, 4 between each cranking attempt to prevent and 8 hours. overheating of the starter motor. Prolonged cranking can damage the starter motor and shorten
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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. control is allowed to move forward, the quicker the mower will turn right. -NOTE- Smooth operation of the steering levers will To stop the reverse travel, allow the steering control produce smooth mower
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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. If the engine starts to lug electrical components. down, reduce the forward speed and allow the engine to operate at maximum RPM. -IMPORTANT- Do not wash a hot or running engine. Cold 4.7 HILLSIDE OPERATION wat
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Section 4 4.11 MOVING MOWER WITH ENGINE 4.13 ADJUSTING CUTTING HEIGHT STOPPED 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 To “free-wheel” or move the mower around without the height: 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. The dump valve levers must be returned to the WARNING: DRIVE position and torqued to
