Wheels
At least once a season, remove both wheels. Clean and coat the
axles with a multipurpose automotive grease before reinstalling
wheels.
Chute Directional Control
Once a season, lubricate the eye bolt bushing and the spiral with
3-in-1 oil.
Auger Shaft
At least once a season, one at a time, remove all of the shear pins
from the auger shaft. Spray lubricant inside the hub of each
auger spiral assembly and around the spacers on the auger shaft.
Grease fittings can also be found at each end of the auger shaft.
Lubricate with a grease gun once a season. See Figure 6-2.
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 6-2.
NOTE:
To relieve pressure, remove the vent plug before
lubricating the gear case. See Figure 6-2. Failure to do so could
result in damage to the gear case seals.
Augers
Each of the auger spiral assemblies is secured to the spiral shaft
with a shear pin and cotter pin. If the auger should strike a
foreign object or ice jam, the snow thrower is designed so that
the pins may shear.
1.
If augers do not turn, check to see if pins have sheared.
2.
Replace the pins if needed. Two replacement shear pins
and cotter pins have been provided with the snow thrower.
Spray an oil lubricant into shaft before inserting new pins
and securing with new cotter pins. See Figure 6-2.
Grease Fitting
Spacers
Bow-Tie Pins
Vent Plug
Shear Pins
Figure 6-2
WARNING!
Before performing any type of
maintenance/service, disengage all controls and stop
the engine. Wait until all moving parts have come to a
complete stop. Remove the key to prevent unintended
starting. Always wear safety glasses during operation
or while performing any adjustments or repairs.
Engine
Refer to the Engine Operators Manual Maintenance section
included with the snow thrower.
Lubrication
Drive and Shifting Mechanism
At least once a season or after every 25 hours of operation,
remove rear cover. Lubricate all chains, sprockets, gears,
bearings, shafts, and the shifting mechanism. Use engine oil or a
spray lubricant. Refer to Figure 6-1.
NOTE:
Before tipping the unit on the front housing, run the fuel
tank empty so fuel does not leak out of the fuel cap.
1.
Carefully pivot the snow thrower up and forward so that it
rests on the auger housing.
2.
Remove the frame cover from the underside of the snow
thrower by removing the self-tapping screws which secure
it. Refer to Figure 6-6.
3.
Apply a light coating of engine oil (or 3-in-1 oil) to the hex
shaft. See Figure 6-1.
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.
4.
At least once a season grease the wheel axle with Arctic
grease, part number 737-0318. The grease fitting is located
on the wheel axle tube behind the wheel axle support
bracket.
Hex Shaft
Rubber Friction
Wheel
Wheel Axle
Support Bracket
Aluminum
Drive Plate
Figure 6-1
Maintenance & Adjustments
6
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