SECTION 9: LUBRICATION

WARNING: Disconnect the spark plug wire and ground against the engine before performing any repairs or maintenance.

ENGINE

Refer to engine manual for engine lubrication instructions.

WARNING: When following instruc- tions in separate engine manual for draining oil, be sure to protect frame to avoid oil dripping onto transmission parts.

WHEELS

Oil or spray lubricant into bearings at wheels at least once a season. Pull klick pin, remove wheels, clean and coat axles with a multipurpose automotive grease. See Figure 23.

 

Oil Bearings

Klick Pin

or Spray Lubricant

Axle

Figure 23

CHUTE CRANK

The worm gear on the chute direction crank should be greased with multipurpose automotive grease.

AUGER SHAFT

Remove shear bolts on auger shaft. Oil or spray lubricant inside shaft. See Figure 24.

Shear Bolts

Bearings

Figure 24

GEAR SHAFT

Lubricate the gear shaft with a good al-weather multi-purpose light grease at least once a season or after every 25 hours of operation.

IMPORTANT: Keep all grease and oil off of the friction wheel and drive plate.

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.

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 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

WARNING: Disconnect the spark plug wire and ground against the engine before performing any repairs or maintenance.

ENGINE

Refer to separate engine manual for all engine maintenance procedures.

AUGERS

The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. See Figure 24. If you hit a foreign object or ice jam, the snow thrower is designed so that the bolts will shear.

If the augers will not turn, check to see if the bolts have sheared. A replacement shear bolt (P) and hex lock nut (Q) have been provided with the snow thrower. When replacing bolts, spray an oil lubricant into shaft before inserting new bolts.

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.

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MTD 611 manual Lubrication, Maintenance