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6
Maintaining
Your Snow
Thrower
WARNING
Always stop engine,
disconnect spark
plug, and ground
against engine before
performing any type
of maintenance on
your machine.
IMPORTANT
Avoid oil spillage on rub-
ber friction wheel and
aluminum drive plate.
IMPORTANT
NEVER replace the
auger shear pins
with standard pins.
Any damage to the
auger gearbox or other
components, as a result
of doing so, will NOT be
covered by your snow
thrower’s warranty.
Figure 6-1
Figure 6-2
Engine
Refer to the separate Tecumseh Engines manual
packed with your unit for all engine maintenance.
Lubrication
Engine
Refer to the Tecumseh Engines manual packed with
your unit for all engine lubrication instructions.
Drive and Shifting Mechanism
At least once a season or after every 25 hours of opera-
tion, 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.
IMPORTANT: Keep all grease and oil off the rubber
friction wheel and drive plate.
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, the spiral end on the chute directional
control should be greased with multipurpose automotive
grease.
Auger Shaft
At least once a season, remove the shear pins on auger
shaft. Spray lubricant inside shaft, around the spacers.
Also lubricate the flange bearings found at either end of
the shaft. See Figure 6-2.
Grease fittings can also be found at either 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 Shell Alvania lead-free grease once a
season (order part number 737-0168). See Figure 6-2.
IMPORTANT: 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
The augers are secured to the spiral shaft with shear pins
and cotter pins. See Figure 6-2. If you hit a foreign object
or ice jam, the snow thrower is designed so that the pins
will 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.
Shear Pin
Vent Plug
Grease
Fitting
Bearing
SpacersCotter Pin