Craftsman C459-52233 Operator's Manual page 24

5. Using a 3/4" wrench, hold the hex shaft and remove the hex bolts
and cupped washer and bearing from left side of the frame. Refer
to Figure 38.
Remove Hex Screw &
Belleville Washer
Hex Shaft
6. Holding the friction wheel assembly, slide the hex shaft out of the
right side of the unit. The spacer on the left side of the hex shaft
will fall and the sprocket should remain hanging lose in the chain.
See Figure 39.
7. Lift the friction wheel assembly out between the axle shaft and
the drive shaft assemblies.
8. Remove four screws securing the friction wheel to the hub
assembly. See Figure 39. Discard old friction wheel.
9. Reassemble the new friction wheel onto the hub assembly,
tightening the four screws in rotation to 6-9 ft. lbs. It is important
to assemble the rubber on the friction wheel symmetrically for
proper functioning.
SERVICE AND MAINTENANCE
Friction Wheel Assembly
Slide Hex
Shaft Out
Right Side
Figure 38
Figure 39
10. Reposition the friction wheel assembly in the snow thrower frame.
Insert the pin from the shift arm assembly into the friction wheel
assembly and hold assembly in position. Refer to Figure 40 .
11. Slide the hex shaft through the right side of the housing and
through the friction wheel assembly.
12. Insert the hex shaft through the sprocket and the spacer. Make
certain that the chain engages both the large and the small
sprocket.
NOTE: If the sprocket fell from the snowthrower while removing the
hex shaft, align sprocket on chain, place the sprocket on the hex shaft.
Position the hex hub of the sprocket toward the friction wheel when
sliding the sprocket on to the hex shaft.
13. Slide the bearing onto the left end of the hex shaft and press into
the hole on the left side the frame.
14. While holding the hex shaft with the wrench secure with the
cupped washer and hex bolt removed earlier.
15. Secure the frame cover with self-tapping screws. Put the
snowthrower down to its normal operati ng position.
IMPORTANT: Repeat the drive control test from the Assembly &
Assembly section of this manual before operating the snow thrower.
24
Figure 40