Lubrication
Drive and Shifting Mechanism
At least once a season or after every 25 hours of operation,
lubricate any chains, sprockets, gears, bearings, shafts, and the
shifting mechanism at least once a season. Use engine oil or a
spray lubricant. Refer to Figure 6-2.
Allow the engine to run until it is out of fuel.
1.
Carefully pivot the snow thrower up and forward so that it
2.
rests on the auger housing.
Remove the frame cover from the underside of the snow
3.
thrower by removing the self-tapping screws which secure
it.
Apply a light coating of engine oil (or 3-in-1 oil) to the hex
4.
shaft.
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.
Gear Case
The auger gear case is equipped with a grease fitting. Lubricate
with grease once a season (order part number 737-0168). See
Figure 6-3.
NOTE: To relieve pressure, remove the vent plug before
lubricating the gear case. See Figure 6-3. Failure to do so could
result in damage to the gear case seals.
Maintenance
WARNING!
Before servicing, repairing, lubricating,
or inspecting, disengage all controls and stop
engine. Wait until all moving parts have come to a
complete stop. Remove the ignition key, disconnect
the spark plug wire and ground it against the engine
to prevent unintended starting. Always wear safety
glasses during operation or while performing any
adjustments or repairs.
Engine
Refer to the separate engine manual packed with your unit for all
engine maintenance and lubrication instructions.
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.
NOTE: Some units are equipped with reversible skid shoes and
may be turned over to increase their lifespan.
To remove skid shoes:
Remove the carriage bolts (and washers if equipped)
1.
and hex flange nuts which secure the skid shoes to the
snowthrower.
Reassemble new skid shoes with previously removed
2.
hardware. Refer to Figure 6-1.
To remove shave plate:
Remove the carriage bolts and hex nuts which attach it and
1.
the skid shoes to the snowthrower housing.
Reassemble new shave plate, making sure heads of carriage
2.
bolts are to the inside of housing. Tighten securely.
Figure 6-1
Figure 6-2
Hex Shaft
Maintenance & Adjustments
6
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