Craftsman 88690 - 250cc 28" Path Two Stage Snow Thrower Operator's Manual page 23

NOTE: Be careful not t odamage the threads onthe shaft,
7. Carefully position the hex shaft downward and tothe leftbefore
carefully sliding the friction wheel assembly offthe shaft. See
Figure 31.
NOTE: Ifyou're r eplacing the friction wheel assembly asawhole,
discard the worn p art and slide t he new part o nto the hex shaft.
Follow t he steps a bove inreverse order toreassemble components. If
you're disassembling the friction wheel and replacing only the rubber
ring, proceed asfollows:
1. Remove the four s crews which s ecure the friction wheel's side
plates together. See Figure 32.
2. Remove the rubber ring from between the plates.
3. Reassemble the side plates with anew rubber ring.
NOTE: When r eassembling the friction wheel assembly, make s ure
that t he rubber ring iscentered and seated properly between the side
plates. Tighten each s crew only o ne rotation before turning the wheel
clockwise and proceeding with the next screw. Repeat this process
several times t oensure the plates are secured with equal force
(between 6ft-lbs a nd 9ft-lbs).
4. Slide t he friction wheel assembly back o nto the hex shaft and
follow the steps a bove i nreverse order toreassemble
components.
5. Perform the Drive C ontrol Test outlined earlier inthe Service and
Maintenance section.
Figure 31
... j
Figure32
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