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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.
Section 1 1.1 INTRODUCTION SERIAL NUMBER PLATE LOCATION Figure 1-1 Tractor Serial Number Plate Location GENERAL INFORMATION 1.2 DIRECTION REFERENCE 1.3 SERVICING THE ENGINE AND DRIVE TRAIN COMPONENTS 390S0137...
Section 2 2.3 BEFORE OPERATION CONSIDERATIONS (CONT'D) WARNING: This machine is equipped with an interlock system intended to protect the operator and others from injury. This is accomplished by preventing the 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.
Section 2 2.6 SAFETY AND INSTRUCTIONAL DECALS DANGER SPINNING BLADE KEEP CLEAR CONTACT CAN INJURE WARNING ROTATING BLADES AND BELTS KEEP HANDS, FEET & CLOTHING CLEAR KEEP ALL GUARDS IN PLACE SHUT OFF ENGINE & DISENGAGE BLADE CLUTCH BEFORE SERVICING CLEAR AREA OF DEBRIS BEFORE MOWING USE CAUTION IN DIRECTING DISCHARGE KEEP BYSTANDERS, CHILDREN &...
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 LEFT STEERING CONTROL AMMETER PARKING BRAKE CONTROL MOWER DECK SWITCH...
Section 4 CONTROL LEVER 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.
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” engine condition that could result in engine damage and/or personal injury. 4.5 GROUND TRAVEL AND STEERING -IMPORTANT- Forward Travel Section 4...
Section 4 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.
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.
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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...
4.13 ADJUSTING CUTTING HEIGHT WARNING: Do not adjust the cutting height with the mower blades rotating. Disengage the power to the cutter blades and then adjust cutting height. DECK RELEASE LEVER Figure 4-7 Deck Release Lever HEIGHT ADJUSTMENT PEDAL Figure 4-6 Adjusting Cutting Height 390S0151 Section 4 LANYARD PIN...
Section 5 TROUBLESHOOTING CUTTING CONDITIONS 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 Deck...
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TROUBLESHOOTING (CONT'D) 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 Width of Deck SGB023...
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Section 5 TROUBLESHOOTING (CONT'D) 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 SGB025...
ADJUSTMENTS 6.1 PARKING BRAKE ADJUSTMENT WARNING: Do not operate the mower if the parking brake is not operable. Possible severe injury could result. -NOTE- LOOSEN HERE 2" TO 2 1/4" Figure 6-1. Brake Adjustment LOOSEN HERE 1/8" Figure 6-2. Brake Rod Adjustment 6.2 TRAVEL ADJUSTMENTS Section 6 LOOSEN...
Section 6 Neutral Adjustment CONTROL LOOSEN HERE LOOSEN HERE 390S0147 390S0149 LOOSEN HERE LOOSEN HERE ADJUST HERE STT99RHCRA ADJUST HERE 390S0146 Figure 6-3. RH Steering Control Rod Adjustment Figure 6-4. LH Steering Control Rod Adjustment...
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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. CAUTION: The engine and drive unit can get hot during operation causing burn injuries.
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MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS (CONT'D) HOURS Break-In 40 100 200 500 (First 10) 7.2 LUBRICATION GREASE FITTING LUBRICATION CHART (SEE FIGURE 7-1) LOCATION + Compatible Greases: Mobilix #2 found at Mobil Service Stations Ronex MP found at Exxon Service Stations Super Lube MEP #2 &...
7.3 HYDRAULIC SYSTEM A. Checking Hydraulic Oil Level -IMPORTANT- If the oil level is consistently low, check for leaks and correct immediately. B. Changing Hydraulic Oil The hydraulic oil should be changed if you notice the presence of water or a rancid odor to the hydraulic oil.
C. Changing Engine Oil Filter 7.5 ENGINE FUEL SYSTEM To avoid injury from burns, allow the mower to cool before removing the fuel tank cap and refueling. FUEL FILTER HOSE CLAMPS Figure 7-7 Fuel Filter A. Filling the Fuel Tank B.
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Section 7 7.7 BATTERY A. Checking Electrolyte Level and Cleaning Battery WARNING: Lead-acid batteries produce flammable and explosive gases. To avoid personal injury when checking, testing or charging batteries, DO NOT use smoking materials near batteries. Keep arcs, sparks and flames away from batteries.
WARNING: BATTERIES PRODUCE EXPLOSIVE GASES. Charge the battery in a well ventilated space so gases produced while charging can dissipate. C. Jump Starting 7.8 DRIVE BELTS -NOTE- 7.9 CUTTER BLADES A. Blade Inspection WARNING: Always wear proper hand and eye protection when working with cutter blades.
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Section 7 ANGLE BLADE BACK DO NOT CUT IN Figure 7-9 Blade Sharpening C. Blade Replacement WARNING: Always wear proper hand and eye protection when working with cutter blades. -NOTE- The front of the machine will have to rasied slightly to remove the blade bolt from the cutter spindle.
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7.11 CUTTER DECK GEARBOX A. Checking Lubricant Level CAUTION: The cutter deck gearbox can reach high operating temperatures. Allow the cutter deck gearbox to cool before servicing. CHECK PLUG Figure 7-12 Cutter Deck Gearbox B. Changing Lubricant 7.12 KAWASAKI COOLING SYSTEM To avoid burns, always allow the engine to cool before removing the radiator cap.
Section 7 -NOTE- The cooling system should be flushed and the coolant replaced every 500 hours of op- eration or annually. See your Scag dealer for proper coolant replacement. B. Cleaning the Radiator Debris Screen CAUTION: To avoid personal injury, always wear safety glasses when using compressed air.
BRAKE AND STEERING COMPONENTS Section 8 TO RH PUMP TO LH PUMP STT99B&SC...
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Section 8 BRAKE AND STEERING COMPONENTS Ref. Part No. No. Description 481599 Grip, Handle Bar 461037 Handle Bar (Includes item 1) 04001-32 Bolt, Hex Head 3/8-16 x 1-1/4" 04030-04 Lockwasher, 3/8" 04041-07 Flatwasher. 3/8" (.391 x .938 x .105) 422372 Bar, Control Lever 45915 Control Lever...
Screw, Phillips Washer Head #10-32 x 1-1/2" 04031-03 Lockwasher, 5/16" External Tooth 04002-12 Bolt, Hex Head M8-1.25 x 20 481623 Electronic Module 481751 Wire Harness, STT * Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.
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ELECTRICAL SYSTEM (KAWASAKI) Section 8 STT99ESKA...
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Electronic Module 481752 Wire Harness, STT-KA 481670 Sending Unit, Water Temp. 48030-11 Clamp, Cable 481183 Water Temp. Gauge (STT - KA Only) * Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated.
REPLACEMENT DECALS AND INFORMATION PLATES DANGER SPINNING BLADE KEEP CLEAR CONTACT CAN INJURE 48071 CAUTION AVOID INJURY FROM BURNS. SHUT OFF ENGINE BEFORE REMOVING FUEL TANK CAP. 481272 FORWARD REVERSE 481568 WARNING INSTALL BELT COVER BEFORE OPERATING MACHINE READ OPERATOR'S MANUAL MOWER DECK PULL OUT TO ENGAGE START...
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Section 8 REPLACEMENT DECALS AND INFORMATION PLATES Ref. Part 48071 481040 48319 48320 481272 48656 481568 48072 48404 481039 481640 481669 481348 481543 481567 481588 481569 481570 481664 481663 481694 * Common hardware which should be purchased locally. All bolts Grade 5 plated, all other fasteners zinc plated. IMPORTANT ADJUSTMENT PROCEDURES READ OPERATOR'S MANUAL...