Maintenance And Adjustments - Yard Machines 500 Series Operator's Manual

Maintenance& Adjustments
6
Maintenance
Engine
Refer to the Engine Operator's Manual packed with your snow
thrower.
Tire Pressu re
Refer to "Assembly & Set-Up" section of this manual.
ShavePlate 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.
NOTE: Some units are equipped with reversible skid shoes and
may be turned over to increase their lifespan.
To remove skid shoes:
1. Remove the four carriage bolts and hex flange nuts which
secure them to the snow thrower.
2. Reassemble new skid shoes with the four carriage bolts
(two on each side) and hex flange nuts. Refer to Fig. 6-1.
To remove shave plate:
3. Remove the carriage bolts and hex nuts which attach it to
the auger housing.
4. Reassemble new shave plate, making sure heads of carriage
bolts are to the inside of housing. Tighten securely.
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Fig. 6-1
Lubrication
GearShaft
The gear (hex) shaft should be lubricated at least once a season
or after every twenty-five (25) hours of operation.
1. Allow the engine to run until it is out of fuel.
2. Carefully pivot the snow thrower up and forward so that it
rests on the auger housing.
3. Remove the frame cover from the underside of the snow
thrower by removing the self-tapping screws which secure
it. Refer to Fig 7-3.
4. Apply a light coating of engine oil (or 3-in-1 oil) to the hex
shaft. See Fig. 6-2.
NOTE:When lubricating the hex shaft, be careful not to get
any oil on the aluminum drive plate or the rubber friction
wheel. Doing so will hinder the snow thrower's drive
system. Wipe off any excess or spilled oil.
Fig. 6-2
Wheels
At least once a season, remove both wheels. Clean and coat the
axles with a multipurpose automotive grease before reinstalling
wheels.
Auger Shaft
At least once a season, remove the shear pins from the auger
shaft. Spray lubricant inside the shaft and around the spacers and
the flange bearings found at either end of the shaft.
See Fig. 6-3.