6
Friction
Gear (Hex) Shaft
Lubrication
Drive and Shifting Mechanism
At least once a season or after every 25 hours of opera- tion, remove rear cover. Lubricate any chains, sprockets, gears, bearings, shafts, and the shifting mechanism at least once a season. Use engine oil or a spray lubricant.
Maintaining
Your Snow
Thrower
WARNING
Always stop engine, disconnect spark plug, and ground against engine before cleaning, lubricating or doing any kind of maintenance on your machine.
IMPORTANT
Avoid oil spillage on rubber friction wheel and aluminum drive plate.
Do not overfill the gear case. Damage to the seals could result.
Wheel 
Drive
Plate
Figure 20
Shear Pin | Vent Plug | Grease |
|
| Fitting (optional) |
Auger Shaft |
| |
Cotter Pin | Spacers | Bearing |
Figure 21
Figure 22
Engine
Refer to the separate engine manual packed with your unit for all engine maintenace and lubrication instruc- tions.
Refer to Figure 20.
IMPORTANT: Keep all grease and oil off the rubber friction wheel and drive plate.
Wheels
At least once a season, remove both wheels. Clean and coat the axles with a multipurpose automotive grease before reinstalling wheels.
Auger Shaft
At least once a season, remove the shear pins on auger shaft. Spray lubricant inside shaft, around the spacers. Also lubricate the flange bearings found at either end of the shaft. See Figure 21.
Gear Case
The auger gear case has been filled with grease at the factory. If disassembled for any reason, lubricate with two ounces of grease (Part Number
NOTE: 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.
Augers
•The augers are secured to the spiral shaft with two shear pins and cotter pins. If the auger should strike a foreign object or ice jam, the snow thrower is designed so that the pins may shear. See Figure 21.
•If the augers will not turn, check to see if the pins have sheared. One set of replacement shear pins has been provided with the snow thrower. When replacing pins, spray an oil lubricant into shaft before inserting new pins.
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:
1.Remove the carriage bolts and hex flange nuts which secure them to the snow thrower.
2.Reassemble new skid shoes with the carriage bolts and hex flange nuts. Refer to Figure 22.
To remove shave plate:
1.Remove the carriage bolts and hex nuts which attach it and the skid shoes to the snow thrower housing.
2.Reassemble new shave plate, making sure heads of carriage bolts are to the inside of housing. Tighten securely.
16