MTD 31AE640F352 - Manual (Page 12)

12
SECTION 6: 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.
Lubrication
Engine
• Refer to the engine manual for maintenance
procedures and instructions.
WARNING: When following instructions in
the engine manual for draining oil, be sure to
protect frame to avoid oil dripping onto
transmission parts.
Gear Shaft
• Lubricate the gear shaft with a good all-weather
multi-purpose light grease at least once a season or
after every 25 hours of operation.
Gear Case
• The auger gearbox has been filled with grease at
the factory. If disassembled for repairs, lubricate
with 1-1/2 ounces of grease (part no. 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.
Auger Shaft
• At least once a season, remove shear bolts on
auger shaft. Oil or spray lubricant inside shaft. Also
lubricate the auger bearings at least once a season.
See Figure 11.
Chute Directional Control
• The worm gear on the chute directional control
should be greased with multipurpose automotive
grease.
IMPORTANT: Keep all grease and oil off friction wheel
and drive plate.
Figure 11
Figure 12
Drive and Shifting Mechanism
• Remove rear cover. Oil 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.
Wheels
• Oil or spray lubricant into bearings at least once a
season. Pull the klick pins and remove wheels,
clean and coat axles with a multipurpose
automotive grease. See Figure 12.
Shear Bolts
Bearings Bearings
Klick Pin
Axle