Maintenance & Adjustments, Lubrication | Bolens 930 SWE, 933 SWE

Maintenance & Adjustments

Maintenance

Engine

Refer to the Tecumseh Engine manual packed with your machine for all engine maintenance.

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.

NOTE: The skid shoes on this machine have two wear edges. When one side wears out, they can be rotated 180° to use the other edge.

To Remove skid shoes:

1.Remove the six carriage bolts, hex nuts, and bell washers that secure the two skid shoes to the sides of the auger housing. Refer to Figure 6-1.

2.Position the new skid shoes and secure with the carriage bolts, bell washers, and hex nuts. Make certain the skid shoes are adjusted to be level. Refer to Fig. 6-1.

3.Slide the shave plate out of the off-set slot at the bottom of the housing, and from between the skid shoes and side panels of the housing.

4.With the mounting holes toward the back, slide the new shave plate into position and secure with the fasteners removed previously.

Lubrication

Gear Shaft

The gear (hex) shaft should be lubricated at least once a season or after every twenty-five (25) hours of operation.

1.Carefully pivot the snow thrower up and forward so that it rests on the auger housing.

2.Remove the frame cover from the underside of the snow thrower by removing four self-tapping screws which secure it. Refer to Figure 6-6.

3.Apply a light coating of engine oil (or 3-in-1 oil) to the hex shaft. See Fig. 6-2.

Hex

Shaft

Shave	Skid Shoe
Shave
Plate

Figure 6-1

To replace shave plate:

1.Remove the hex nuts, bell washers, and carriage bolts that secure the shave plate to the bottom of the snow thrower housing.

2.Remove the rear most hex nut, bell washer, and carriage bolt securing the back of each skid shoe to the sides of the housing. Loosen the remaining hex nuts securing the skid shoes.

Figure 6-2

NOTE: When lubricating the hex shaft, be careful not to get any oil on the aluminum drive plate or the rubber friction wheel. Doing so will hinder the snow thrower’s drive system. Wipe off any excess or spilled oil

Wheels

At least once a season, remove both wheels. Clean and coat the axles with a multipurpose automotive grease before reinstalling wheels.

Chute Directional Control

Once a season, lubricate the eye-bolt bushing and the spiral with 3-in-1 oil.