MTD 611 - Manual (Page 16)

16
SECTION 7: MAINTAINING YOUR SNOW THROWER
WARNING: 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
Engine
Refer to the separate engine manual packed with your
unit for all engine lubrication 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.
IMPORTANT: Keep all grease and oil off the friction
wheel and drive plate.
Chute Directional Control
• The worm gear on the chute directional control
should be greased with multipurpose automotive
grease.
Wheels
• Oil or spray lubricant into bearings at least once a
season. Pull the click pins and remove wheels,
clean and coat axles with a multipurpose
automotive grease. See Figure 21.
Figure 21
Auger Shaft
At least once a season, remove the shear bolts on the
auger shaft. Spray lubricant inside the shaft. Also
lubricate the plastic auger bearings at least once a
season on the end of the auger shaft with a standard
grease gun. See Figure 22.
Figure 22
Gear Case
• The worm gear case has been filled with grease at
the factory. 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.
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. See Figure 23.
Figure 23
Click Pin
Axle
Vent Plug
Plastic
Bearing Plastic
Bearing
Shear Bolts
Shift
Lever
Chain
Gear Shaft
Avoid oil on
friction wheel
and drive plate