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User manual Bolens, model 664F

Manafacture: Bolens
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Refer to Figure 17. • Remove six self-tapping screws from the frame cover underneath the snow thrower. • Remove the klick pins which secure the wheels, and remove the wheels from the axle. • Using a wrench to hold the shaft, loosen, but do not completely remove, the hex nut and bell washer on the left end of gear shaft. See Figure 29. Hex Nut & Bell Washer Figure 29 • Lightly tap the hex nut to dislodge the ball bearing from the right side of the frame. Remove the hex nut and bell washer from the left end of the shaft. • Slide the gear shaft to the right then slide the friction wheel assembly from the shaft. • Remove the four screws from the friction wheel assembly. See Figure 30. • Remove the friction wheel rubber from between the friction wheel plate. • Reassemble new friction wheel rubber to the friction wheel assembly, tightening the six screws in rotation and with equal force. See Figure 30. 18 19 Figure 30 • Slide friction wheel assembly back onto the gear shaft. Be sure to align the pin on the shift rod with hole in the friction wheel assembly. See Figure 27. • Reassemble gear shaft and the wheels. Reattach the frame cover. Flip snow thrower back to its operating position and remove any plastic from under the machine or around the gas cap if you had put it earlier. Off-Season Storage WARNING: Never store the machine or fuel container indoors where there is an open flame, spark or pilot light such as on a water heater, furnace, clothes dryer or other gas appliances. WARNING: Drain fuel into an approved container outdoors, away from open flame. Allow engine to cool. Extinguish cigarettes, cigars, pipes, and other sources of ignition prior to draining fuel. Fuel left in engine for extended period deteriorates and will cause serious starting problems. If unit is to be stored over 30 days, prepare for storage as follows: • Remove gasoline from carburetor and fuel tank to prevent gum deposits from forming on these parts and causing possible malfunction of engine. • Run engine until fuel tank is empty and engine stops due to lack of fuel. • Drain carburetor by pressing upward on bowl drain, located below the carburetor cover. NOTE: Fuel stabilizer is an acceptable alternative in minimizing the formation of fuel gum deposits during storage. Do not drain carburetor if using fuel stabilizer. • Wipe equipment with an oiled rag to prevent rust. • Remove spark plug and pour one ounce of engine oil through spark plug hole into cylinder. Cover spark plug hole with rag. Crank engine several times to distribute oil. Replace spark plug. • Follow the lubrication recommendations found in the Maintenance Section. • Always store the snow thrower in a clean, dry area. When storing any type of power equipment in an unventilated or metal storage shed, care should be taken to rust proof the equipment. Using a light oil or silicone, coat the equipment, especially any chains, springs, bearings and cables. Friction Wheel Rubber Screws Friction Wheel Hub Plates SECTION 9: TROUBLE SHOOTING GUIDE Trouble Possible Cause(s) Corrective Action Engine fails to start Fuel tank empty, or stale fuel. Blocked fuel line. Choke not in ON position Faulty spark plug. Key not in switch on engine. Spark plug wire disconnected. Primer button not depressed. Fuel shut-off valve closed (if so equipped). Fill tank with clean, fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is used. Clean fuel line. Move switch to ON position Clean, adjust gap or replace. Insert key. Connect spark plug wire. Refer to the engine manual. Open fuel shut-off valve. Engine runs erratic Unit running on CHOKE. Blocked fuel line or stale fuel. Water or dirt in fuel system. Carburetor out of adjustment. Move choke lever to OFF position. Clean fuel line; fill tank with clean fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is used. Drain fuel tank. Refill with fresh fuel. Refer to the engine manual. Loss of power Spark plug wire loose. Gas cap vent hole plugged. Exhaust port plugged. Connect and tighten spark plug wire. Remove ice and snow from cap. Be certain vent hole is clear. Clean following the engine manual. Engine overheats Carburetor not adjusted properly. Incorrect fuel mixture. Refer to the engine manual packed with your unit or have carburetor adjusted by an authorized service dealer. Drain fuel tank. Refill with proper fuel mixture. Excessive vibration Loose parts or damaged auger. Stop engine immediately and disconnect spark plug wire. Tighten all bolts and nuts. Make all necessary repairs. If vibration continues, have unit serviced by an authorized service dealer. Unit fails to propel itself Incorrect adjustment of drive cable. Drive belt loose or damaged. Adjust drive cable. Replace drive belt. Unit fails to discharge snow Discharge chute clogged. Foreign object lodged in auger. Incorrect adjustment of drive cable. Drive belt loose or damaged. Stop engine immediately and disconnect spark plug wire. Clean dis...