SECTION 7: SERVICING YOUR SNOW THROWER
WARNING: Before servicing, repairing, or inspecting, disengage all clutch levers and stop engine. Wait until all moving parts have come to a complete stop. Disconnect spark plug wire and ground it against the engine to prevent unintended starting.
Augers
•The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. If you hit a hard foreign object or ice jam, the snow thrower is designed so that the bolts may shear.
Refer to Figure 14.
•If the augers will not turn, check to see if the bolts have sheared. Replacement shear bolts and hex lock nuts have been provided with the snow thrower. When replacing bolts, spray an oil lubricant into shaft before inserting new bolts.
IMPORTANT:NEVER replace the auger shear bolts with standard hex bolts. Any damage to the auger gearbox or other components as a result of doing so will NOT be covered by your snow thrower’s warranty.
Shave Plate and Skid Shoes
•The shave plate and skid shoes on the bottom of the snow thrower are subject to wear. They should be checked periodically and replaced when necessary.
•Remove the six carriage bolts, belleville washers and hex nuts which attach two skid shoes to the snow thrower on two sides. See Figure 12.
•Reassemble new skid shoes with the hardware removed earlier (cupped side of belleville washer against the skid shoes). Make certain the skid shoes are adjusted to be level.
•To remove the shave plate, remove the carriage bolts, belleville washers and hex nuts which attach the shave plate to the snow thrower housing. See Figure 15.
•Reassemble the new shave plate, with heads of carriage bolts to the inside of the housing. Tighten securely.
Shear Bolts |
|
|
Washer | Carriage | Shave |
Hex Nut | Bolt | |
| Plate |
Figure 15
Belt Removal And Replacement
Auger Belts
NOTE: It is necessary to remove both belts in order to change either one. If changing just one belt, be certain to check the condition of the other belt.
•Disconnect the chute crank assembly at the discharge chute end by removing the hairpin clip and the flat washer. See Figure 16A.
•Remove the engine shroud by removing the lock nuts and bolts securing it. See Figure 16B.
•Remove the plastic belt cover at the front of the engine by removing the two
•Drain the gasoline from the snow thrower, or place a piece of plastic film under the gas cap.
•Tip the snow thrower up and forward so that it rests on its auger housing. Refer to Figure 9.
14