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Carburetor
Minor carburetor adjustments may be required to
compensate for differences in fuel temperature, altitude
and load.
Service
Augers
The augers are secured to the spiral shaft with two
shear bolts and hex lock nuts. See Figure 27 . If you hit
a foreign object or ice jam, the snow thrower is
designed so that the bolts will shear. This type of nut is
used where vibration occurs.
• If the augers do not turn, check to see if the bolts
have sheared. Two replacement shear bolts and
hex lock nuts have been provided with the snow
thrower. Since lock nuts cannot be threaded onto a
bolt by hand, use a wrench. When replacing bolts,
spray an oil lubricant into shaft before inserting new
bolts.
Figure 27
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.
• Remove the four carriage bolts, belleville washers
and hex nuts which attach skid shoes to the snow
thrower on two sides. See Figure 27 .
• Reassemble new skid shoes with the four carriage
bolts, belleville washers (cupped side goes against
skid shoes) and hex nuts. Make certain the skid
shoes are adjusted to be level.
• To remove shave plate, remove carriage bolts,
belleville washers and hex nuts which attach shave
plate to the snow thrower housing. For location of
shave plate, see Figure 27 .
• Reassemble new shave plate, making sure heads
of the carriage bolts are to the inside of the housing.
Tighten securely.
Replacing Belt
Auger Belts
• Remove the plastic belt cover on the front of the
engine by removing the two self-tapping screws.
See Figure 28 .
Figure 28
• Disconnect chute crank assembly at the discharge
chute by removing the hairpin clip and the two flat
washers. See Figure 29 .
Figure 29
WARNING: If any adjustments are made to
the engine while the engine is running (e.g.
carburetor), keep clear of all moving parts. Be
careful of heated surfaces and mufflers.
Shear Bolts
Carriage
Hex Nut
Washer
Shave
Bolt
Plate
WARNING: Disconnect the spark plug wire
from the spark plug and ground.
Self-Tapping Screw
Belt Cover
Self-Tapping Screw
Chute
Crank
Flat
Washer
Hairpin
Clip