16
SECTION 7: SERVICE
WARNING:
Disconnect the spark plug
wire and ground it against the engine before
performing any lubrication or maintenance.
Engine
Refer to engine manual for all engine lubrication
instructions.
WARNING:
When following instructions in
separate engine manual for draining oil, be
sure to protect frame to avoid oil dripping
onto transmission parts.
Chute Directional Control
The gear on the end of the chute directional control
should be greased with multi-purpose automotive
grease once a season.
Auger Shaft
At least once a season, remove shear bolts on auger
shaft. Oil or spray lubricant inside shaft. See Figure 25.
Also lubricate the auger bearings at least once a
season.
Figure 25
Sprocket Shaft
Lubricate the sprocket shaft with a light oil at least once
a season or after every 25 hours of operation.
IMPORTANT:
Keep all grease and oil off of the rubber
friction wheel and aluminum drive plate.
Drive and Shifting Mechanism
At least once a season or after every 25 hours of
operation, remove the bottom frame cover. Lubricate
any chains, sprockets, gears, bearings, shafts, and
shifting mechanism at least once a season. Use engine
oil or a spray lubricant. Avoid getting oil on rubber
friction wheel and aluminum drive plate.
Gear Case
The gear case is lubricated with grease at the factory
and does not require checking. If disassembled for any
reason, lubricate 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.
SECTION 8: MAINTAINING YOUR SNOW THROWER
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.
Augers
The augers are secured to the spiral shaft with two
shear bolts and hex lock nuts. Refer to Figure 25. If you
hit a hard foreign object or ice jam, the snow thrower is
designed so that the hex bolts will shear. If the augers
will 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. For future use, order
part number 710-0890A (shear bolt 5/16-18 x 1.5” long)
and 712-0429 (hex insert lock nut 5/16-18 thread).
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.
Bearings
Shear
Bolts
