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MAINTENANCE
Figure 31
Figure 32
Friction Wheel Ass’y.
Hex Shaft
Slide Hex
Shaft Out
Right Side
Remove Hex Screw
Belleville Washer
Reassemble your unit by performing the previous steps in the opposite
order.
Changing Friction Wheel Rubber
WARNING: The rubber on the friction wheel is
subject to wear and should be checked after the first
25 hours of operation, and periodically thereafter.
Replace the friction wheel rubber 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 hous-
ing.
3. Remove screws from the frame cover underneath the snow thrower.
See Figure 15.
4. Remove the right wheel from the axle.
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 31.
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.
7. Lift the friction wheel assembly out between the axle shaft and the
drive shaft assemblies.
8. Remove four screws securing the friction wheel rubber between the
friction wheel plates. See Figure 32. Discard old rubber.
9. Reassemble the new friction wheel rubber to the friction wheel
assembly, tightening the four screws in rotation and with equal
force. It is important to assemble the rubber on the friction wheel
symmetrically for proper functioning.
10. Insert the pin from the shift arm assembly into the friction wheel
assembly and hold assembly in position. Refer to Figure 33.
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 snow thrower while removing the
hex shaft, 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.
Secure with the cupped washer and hex bolt removed earlier.
15. Secure the frame cover with self-tapping screws. Put the snow
thrower down to its normal operating position.
NOTE:
If you placed plastic film under the gas cap, be certain to
remove it.
Figure 33
Summary of Contents for C459-527870
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