Manual

(;earCase
The worm gear case has been filled with grease at the
factory. If disassembled for any reason, lubdcate with 2
ounces of shell grease, part number 737-0168.
IMPORTANT: Do not overfill the gear case. Damage to
the seals could result. Be sure the vent plug is free of
grease in order to relieve pressure.
DriveandShiftingMechanism
Remove rear cover. Oil any chains, sprockets, gears,
bearings, shafts, and shifting mechanism at least once
a season. Use engine oil or a spray lubdcant. Avoid
getting oil on rubber friction wheel and aluminum drive
plate.
FrictionWheel
The rubber on the friction wheel is subject to wear and
should be checked after 25 hours of operation, and
periodically thereafter. Replace the friction wheel
rubber if any signs of wear or cracking are found. Refer
to the Friction Wheel Rubber in the SERVICE section.
SECTION8: SERVICINGYOURSNOWTHROWER
WARNING: Before servicing, repairing,or inspecting, disengage all clutch levers
and stop engine. Wait until all moving
parts have come to a complete stop.
Disconnect spark plug wire and ground it
against the engine to prevent unintended
starting
Engine
Refer to the separate engine manual packed with your
unit for all engine maintenance procedures.
Augers
The augers are secured to the spiral shaft with two
shear bolts and hex lock nuts. If you hit a hard
foreign object or icejam, the snow thrower is
designed so that the bolts may shear.
Refer to Figure 20.
If the augers will not turn, check to see ifthe bolts
have sheared. Replacement shear bolts and hex
lock nuts have been provided with the snow
thrower. When replacing bolts, spray an oil
lubricant into shaft before inserting new bolts.
IMPORTANT: NEVER replace the auger shear bolts with
standard hex bolts. 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.
ShavePlateandSkidShoes
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.
To remove skid shoes, remove the four carriage
bolts, cupped washers and hex nuts which attach
them to the snow thrower. Reassemble new skid
shoes with the four carriage bolts, cupped washers
(cupped side goes against skid shoes) and hex
nuts. See Figure 21.
Bolts
Shave Plate
Figure 21
To remove shave plate, remove the carriage bolts,
cupped washers and hex nuts which attach it to the
snow thrower housing. Reassemble new shave
plate, making sure heads of carriage bolts are to
the inside of housing. Tighten securely.
See Figure 21.
BeltRemovalandReplacement
AugerBelts
NOTE: It is necessary to remove both belts in orderto
change either one. If changing just one belt, be certain
to check the condition of the other belt.
Remove the plastic belt cover on the front of the
engine by removing the two self-tapping screws.
See Figure 22.
Drain the gasoline from the snow thrower, or place
a piece of plastic under the gas cap.
Tip the snow thrower up and forward so that it rests
on the auger housing.
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