ページ1に含まれる内容の要旨
OPERATOR’S MANUAL
SNOW
THROWER
MODELS
Snow Boss 550
Snow Boss 750
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-
covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting
applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order
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TABLE OF CONTENTS Content Page Important Safe Operation Practices................................................................... 3 Assembling Your Snow Thrower........................................................................ 5 Know Your Snow Thrower ................................................................................. 7 Operating Your Snow Thrower........................................................................... 8 Making Adjustments ...............................
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SECTION 1: IMPORTANT SAFE OPERATION PRACTICES WARNING: This symbol points out important safety instructions which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate this machine. Failure to comply with these instructions may result in personal injury. When you see this symbol - heed its warning. WARNING: Engine Exhaust, some of its constituents, and certain vehicle componen
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3. The clutch levers must operate easily in both directions 20. If situations occur which are not covered in this manual, and automatically return to the disengaged position when use care and good judgment. Contact your dealer or released. telephone 1-800-949-4483 for assistance and the name 4. Never operate with a missing or damaged discharge of your nearest servicing dealer. chute. Keep all safety devices in place and working. 5. Never run an engine indoors or in a poorly ventilated Main
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SECTION 2: ASSEMBLING YOUR SNOW THROWER NOTE: Any reference in this manual to the left or right Raise the upper handle assembly until it locks over side of the snow thrower is observed from the the lower handle. operator’s position. Look at the lower rear of snow thrower frame to be sure both cables are aligned with cable roller Unpacking guides. Secure the upper handle and lower handle with the Remove screws from the top sides and ends of the two plastic wing knobs, cupped washer
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Wind the headlight wire around the right handle until excess slack is removed. Plug the wire from the headlight into the wire lead coming from the right side of the engine, beneath the fuel tank. Final Adjustments Auger Control Adjustment Check the adjustment of the auger control as follows: Push forward on the auger control until the small rubber bumper contacts the upper handle. There should be slack in the cable. See Figure 5. Release the auger control. The cable should be str
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b. Engage the traction control and attempt to Retighten the jam nut to secure the cable when move them machine both forward and correct adjustment is reached. rearward. You should experience resistance If the machine can be moved freely both forward and as the wheels should not be turning. rearward when the traction control fully depressed, • Move the shift lever into the fast reverse (R2) proceed as follows: position and repeat the previous steps (a & b). Loosen the jam nut on the tract
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adjusting the angle of the chute assembly. Move the Shift Lever chute tilt control forward to decrease the distance and The shift lever is located in the center of the handle toward the rear to increase the distance. See Figure 7. panel and is used to determine both ground speed and direction of travel. It can be moved into any of eight Headlight positions. See Figure 7. The headlight is on whenever the engine is running. Forward Your snow thrower has six forward (F) speeds. Position S
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Electric Starter (If Equipped) To Stop Engine Run engine for a few minutes before stopping to WARNING: The electric starter is help dry off any moisture on the engine. equipped with a grounded three-wire To help prevent possible freeze-up of starter, power cord and plug and is designed to proceed as follows. operate on 120 volt AC household Electric Starter: current. It must be used with a properly Connect power cord to switch box on engine, then grounded three-prong receptacle at all t
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upward (to lower the shave plate) for hard-packed Operating Tips snow. Adjust downward (to raise the shave plate) when using on gravel or crushed rock. NOTE: Allow the engine to warm up for a few minutes For most efficient snow removal, remove snow as the engine will not develop full power until it reaches immediately after it falls. operating temperature. Discharge snow downwind whenever possible and WARNING: Muffle, engine, and surround- slightly overlap each previous cleared path. ing
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Thread the upper shift rod downward until the elbow on its lower end aligns with the hole found in the lower shift rod. Friction Reconnect the upper shift rod to the lower shift rod Wheel by reinserting the hairpin clip removed earlier and Gear Shaft sliding the connector back down into place. IMPORTANT: Make certain to check for correct adjustment of the shift rod as instructed under Final Adjustments in the Assembly Section, before operating the snow thrower. Drive Plate Drive Whe
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SECTION 6: MAINTAINING YOUR SNOW THROWER WARNING: Before lubricating, repairing, Gear Case or inspecting, disengage all clutch levers The gear case is equipped with a grease fitting on the and stop engine. Wait until all moving left housing and should be lubricated with Shell Alvania parts have come to a complete stop. grease EPR00, part number 737-0168 every 25 hours. Disconnect spark plug wire and ground it See Figure 14. against the engine to prevent unintended starting. Lubrication Whee
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Traction Control / Auger Control Lock Engine The cams on the ends of the control rods which Refer to the separate engine manual packed with your interlock the traction drive and auger drive controls unit for all engine lubrication instructions. must be lubricated at least once a season or every 25 IMPORTANT: When following instructions in separate hours of operation. The cams can be accessed beneath engine manual for draining oil, be sure to protect frame the handle panel. Use a multi-purpo
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NOTE: Loosening the six nuts that connect the frame to Servicing Friction Wheel Rubber the auger housing may aid in belt removal. The rubber on the friction wheel is subject to wear and Lift the auger belt from the auger pulley, and slip should be checked after 25 hours of operation, and belt between the support bracket and the auger periodically thereafter. Replace the friction wheel pulley. See Figure 18. rubber if any signs of wear or cracking are found. Replace the auger drive belt
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Reassemble new friction wheel rubber to the If unit is to be stored over 30 days, prepare for storage friction wheel plates and hub, tightening the six as follows: screws in rotation and with equal force. Remove gasoline from carburetor and fuel tank to Position the friction wheel assembly up onto the pin prevent gum deposits from forming on these parts of the shift rod assembly, and slide the shaft and causing possible malfunction of engine. through the assembly. Reassemble in revers
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SECTION 8: TROUBLESHOOTING Problem Cause Remedy Engine fails to start 1. Fuel tank empty, or stale fuel. 1. Fill tank with clean, fresh gasoline. Fuel becomes stale after thirty days unless a fuel stabilizer is used. 2. Blocked fuel line. 2. Clean the fuel line. 3. Choke not in ON position 3. Move switch to ON position 4. Faulty spark plug. 4. Clean, adjust gap or replace. 5. Safety key not in ignition switch on engine. 5. Insert the key fully into the switch. 6. Spark plug wire disconnected.
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Models 550 & 750 4 17 11 9 16 13 8 15 1 10 14 5 6 18 7 3 12 3 2 Ref. Part No. Part Description No. 1. 618-0123 RH Housing 2. 618-0418 LH Housing w/Fitting 3. 710-0642 Self Tapping Screw, 1/4-20 x .75 4. 711-1020 Spiral Axle 22” (550) 711-0908 Spiral Axle 24” (750) 5. 714-0161 Hi-Pro Key, 3/16 x 5/8 6. 715-0143 Spring Spiral Pin, .25 x 1.25 7. 717-0528 Worm Gear, 20-tooth 8. 717-0526 Worm Shaft 9. 718-0186 Thrust Collar 10. 721-0325 Grease Plug 11. 721-0327 Grease Seal 12. 736-0351 Flat Washer,
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Models 550 & 750 20 27 37 39 Drive Clutch Cable 20 5 Auger Clutch 4 13 1 Cable 7 11 38 6 3 10 37 4 40 1 2 14 15 26 5 16 25 36 7 9 10 11 25 31 12 28 23 17 21 8 18 4 32 24 1 22 1 33 20 29 5 8 34 Auger Clutch 26 Cable 35 19 Blower 30 Housing 1 1 44 41 42 42 43 18
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Models 550 & 750 Ref. Ref. Part No. Part Description Part No. Part Description No. No. 1. 710-1652 Hex Screw 24. 717-1444 7-Tooth Shaft 2. 784-5688 Drive Cable Guide Bracket 25. 715-0249 Roll Pin 3. 784-5687A Auger Clutch Cable Bracket 26. 714-0143 Click Pin 4. 756-0625 Roller Cable 27. 684-0042C Friction Wheel Assembly 5. 738-0924 Hex Screw 1/4-28 28. 656-0012A Friction Disc Wheel 6. 784-5630A Frame Assembly 29. 684-0013B Wheel Shift Rod Assembly 7. 741-0563 Ball Bearing 30. 746-0897 Drive Ca
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Models 550 & 750 2 1 3 4 5 11 10 9 15 18 14 6 12 7 8 13 32 31 9 18 19 20 16 22 43 23 21 31 27 10 13 30 34 28 25 23 18 13 38 26 43 35 31 22 30 18 32 31 33 16 41 36 37 17 39 40 24 40 42 39 29 20
