Craftsman professional 247.88045 Manual Del Operador página 20

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.
SERVICE AND MAINTENANCE
Remove Hex Screw
Belleville Washer
Hex Shaft
0
Figure 30
Friction Wheel Ass'y.
Slide Hex
Shaft Out
Right Side
Figure 31
Figure 32