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SECTION 9: LUBRICATION
WARNING: Disconnect the spark
plug wire and ground against the
engine before performing any
lubrication or maintenance.
ENGINE
Refer to engine manual for all engine lubrication
instructions.
WARNING: When following instruct-
ions in separate engine manual for
draining oil, be sure to protect frame to
avoid oil dripping onto transmission
parts.
CHUTE CRANK
The gear on the end of the chute crank 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
28. Also lubricate the auger bearings at least once a
season.
Figure 28
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 Alvania grease EPR00, part number
737-0168. Before reassembling, remove old sealant
and apply “Loctite 5699” or equivalent.
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 10: MAINTENANCE
AUGERS
The augers are secured to the spiral shaft with two
shear bolts and hex lock nuts. Refer to Figure 28. If
you hit a 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-
0890 (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.
To remove skid shoes, remove the four carriage
bolts, belleville washers and hex nuts which attach
them to the snow thrower. 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
the same level on both sides.
To remove shave plate, remove the carriage bolts,
belleville washers and hex nuts which attach it to
the snow thrower housing. Reassemble new shave
plate, making sure heads of the carriage bolts
are to the inside of the housing. Tighten securely.
ENGINE
Refer to separate engine manual for all engine
maintenance procedures.
BELT REMOVAL AND REPLACEMENT
WARNING:
Disconnect the spark
plug wire from the spark plug and
ground.
Bearings
Shear Bolts