Yard Machines 611 manual Service, Engine, Augers, Shave Plate and Skid Shoes

SECTION 8: SERVICE

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.

Engine

•Refer to the engine manual for all engine maintenance procedures.

Augers

•The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. See Figure 22. If you hit a hard foreign object or ice jam, the snow thrower is designed so that the bolts may shear.

•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.

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.

•To remove skid shoes, remove the four carriage bolts, cupped washers and hex nuts which attach them to the snow thrower. Reassemble new skid shoes with the four carriage bolts, cupped washers (cupped side goes against skid shoes) and hex nuts. See Figure 24.

Skid Carriage

Shoe Bolts

Skid

Shoe

Shave Plate Hex Nuts

Figure 24

•To remove shave plate, remove the carriage bolts, cupped washers and hex nuts which attach it to the snow thrower housing. See Figure 24. Reassemble new shave plate, making sure heads of carriage bolts are to the inside of housing. Tighten securely.

Belt Removal and Replacement

WARNING: Disconnect spark plug wire and ground it against the engine to prevent unintended starting. Drain fuel into an approved container or place a piece of plastic film underneath the gas cap to prevent gasoline from leaking.

Auger Belts

•Remove plastic belt cover from front of the engine by removing the two self-tapping screws. See Figure 25.

Belt	Self-Tapping
	Screws
Cover

Figure 25

•Drain gasoline from the snow thrower, or place a piece of plastic under the gas cap.Tip the unit up and forward so that it rests on auger housing.

•Remove six self-tapping screws from the frame cover underneath the snow thrower.

•Roll auger belt off the engine pulley. See Figure 26.

Auger	Drive
	Belt
Belt

Drive

Pulley

Idler

Pulley

Engine

Pulley

Idler

Pulley

Figure 26

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