SERVICE AND MAINTENANCE
Changing Friction Wheel
The rubber on the friction wheel is subject to wear and should be checked after the first 25 hours of operation, and periodically there- after. Replace the friction wheel if any signs of wear or cracking are found.
1.Drain the gasoline from the snow thrower, or place a piece of plastic under the gas cap.
2.Tip the snow thrower up and forward, so that it rests on the housing.
3.Remove screws from the frame cover underneath the snow thrower (refer to Figure 30). Remove the right wheel from the axle.
4.Using a 3/4” wrench, hold the hex shaft and remove the hex screw and belleville washer and bearing from left side of the frame. Refer to Figure 31.
5.Holding the friction wheel assembly, slide the hex shaft out of the friction wheel assembly and the right side of the frame. The spacer on the left side of the hex shaft will fall and the sprocket should remain hanging lose in the chain.
6.Lift the friction wheel assembly out between the axle shaft and the drive shaft assemblies.
7.Remove four screws securing the friction wheel to the hub assembly (refer to Figure 32). Discard old friction wheel.
8.Reassemble the new friction wheel onto the hub assembly, tightening the four screws in rotation and with equal force. It is important to assemble the friction wheel symmetrically for proper functioning.
| Figure 30 |
Remove Hex Screw | Friction Wheel Ass’y. |
Belleville Washer |
|
| Slide Hex |
| Shaft Out |
| Right Side |
Hex Shaft
Figure 31
Figure 32
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