Yard-Man 31AH553G401 - Manual (Page 13)

13
SECTION 6: MAINTAINING YOUR SNOW THROWER
Before lubricating, 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.
Lubrication
Gear Shaft
Lubricate the gear shaft with 6-in-1 grease (part
number 737-0170) at least once a season, or after
every 25 hours of operation.
Refer to Figure 11.
IMPORTANT: Keep all grease and oil off the rubber
friction wheel and aluminum drive plate.
Engine
Refer to the seperate engine manual packed with your
unit for all engine lubrication instructions.
Auger Shaft
• At least once a season, remove shear bolts from
auger shaft. Oil or spray lubricant inside shaft. See
Figure 13. Also lubricate the plastic auger bearings
at least once a season.
Figure 13
Gear Case
The gear case is lubricated with grease at the factory
and does not require checking. If disassembled for any
reason, lubricate with two 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. Be sure the
vent plug is free of grease in order to relieve pressure.
See Figure 13.
Drive and Shifting Mechanism
At least once a season or after every 25 hours of
operation, remove rear cover. Lubricate any chains,
sprockets, gears, bearings, shafts, and shifting
mechanism at least once a season. See Figure 14. Use
engine oil or a lubricant spray . Avoid getting oil on
rubber friction wheel and aluminum drive plate.
Figure 14
Traction Control / Auger Control Lock
The cams on the ends of the control rods which
interlock the traction drive and auger drive clutches
must be lubricated at least once a season or every
twenty five hours of operation. The cams can be
accessed beneath the handle panel. See Figure 15.
Use a multi-purpose automotive grease.
Figure 15
Plastic Bearings
Vent Plug
Shear
Bolt
Bolt
Shear
Lube Gear
and Chute Base
Lube cams here
Handle Panel