Craftsman C950-52850-0 Owner's Manual page 36

How To Replace The Friction Wheel
If the friction wheel is worn or damaged, the snowthrower will
not move forward. The friction wheel must be replaced as
follows.
WARNING: Do not lubricate the disc drive plate
or the friction wheel.
1. Remove the gas from the gas tank. Stand the snow
thrower up on the front end of the auger housing (4)
(see Figure 40).
WARNING: Drain the gasoline outdoors, away
from fire or flame.
2. Disconnect the spark plug wire.
3. Loosen the bolts on each side of the bottom panel (see
Figure 43).
4. Remove the bottom panel.
5. Remove the rear support brace (see Figure 47).
6. Use a 3/16" allen wrench and remove the fastener that
secures the right axle clamp to the axle (see Figure 49).
7. Remove the right wheel, axle, axle clamp, and washer.
8. Remove the left wheel (see Figure 46).
9. Remove the fasterners that secure the axle support to
the motorbox. Remove the axle support and bushing
(see Figure 49).
10. Loosen (do not remove) the bolts that secure the axle
bearings to the motor box (see Figure 49).
11. Remove the clutch/drive sprocket assembly from the
axle.
ADJUSTMENT/REPAIR
36
Axle Bolt
Bottom
Panel
Bolt
Wheel
Rear Support Brace
Axle
Clamp
Axle
Figure 46
Figure 47
Washer
Right
Wheel
Figure 48