Yard-Man 31AH553G401 사용자 설명서

14

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. 

The augers are secured to the spiral shaft with two 
shear bolts and hex lock nuts. See Figure 16. If you hit 
a foreign object or ice jam, the snow thrower is 
designed so that the bolts may shear.

If the augers do not turn, check if the bolts have 
sheared. Two replacement shear bolts and hex lock 
nuts have been provided with the snow thrower. Refer 
to Loose Parts on page 5. For future use, order kit 
number OEM-710-0890.

 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 coved by your snow thrower’s warranty.

•

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, belleville washers and hex nuts which attach 
them to the snow thrower. Reassemble new skid 
shoes with the hardware earlier removed. Make 
certain the skid shoes are adjusted to be level.

•

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

•

Remove the plastic belt cover on the front of the 
engine by removing the two self-tapping screws. 
See Figure 17.

•

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.

•

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

•

Roll the front and rear auger belts off the engine 
pulley. See Figure 18.