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27Section 7 — Service
6. Back out the stop bolt to increase the clearance between
the friction wheel disc and friction wheel. See Figure 7-7.
Stop Bolt
Figure 7-7
7. Slip the drive belt off the pulley and between friction
wheel and friction wheel disc. See Figure 7-7.
8. Remove and replace belt in the reverse order. Be sure to
re-install the stop bolt.
Friction Wheel Inspection (500 Series & Single
Speed 600 Series)
If the snow thrower fails to drive with the drive control engaged,
and performing the drive control cable adjustment fails to
correct the problem, the friction wheel may need to be replaced.
NOTE: Special tools are required and several components must
be removed and in order to replace the snow thrower’s friction
wheel rubber. See your authorized service dealer to have the
friction wheel rubber replaced or phone Customer Support
as instructed on page 2 for information on ordering a Service
Manual.
To inspect the friction wheel, proceed as follows:
1. Allow the engine to run until it is out of fuel. Do not
attempt to pour fuel from the engine.
2. Carefully pivot the snow thrower up and forward so that it
rests on the auger housing.
3. Remove the frame cover from the underside of the snow
thrower by removing four self-tapping screws which secure
it. See Figure 7-3.
4. Examine the friction wheel for signs of wear or cracking.
Friction Wheel Removal (Multi-Speed 600 Series)
If the snow thrower fails to drive with the drive control engaged,
and performing the drive control cable adjustment fails to
correct the problem, the friction wheel may need to be replaced.
Follow the instructions below. Examine the friction wheel for
signs of wear or cracking and replace if necessary:
1. Allow the engine to run until it is out of fuel. Do not
attempt to pour fuel from the engine.
2. Place the shift lever in third Forward (F3) position.
3. Carefully pivot the snow thrower up and forward so that it
rests on the auger housing.
4. Remove the frame cover from the underside of the snow
thrower by removing the self-tapping screws which secure
it. Remove the right-hand wheel by removing the screw
and bell washer which secure it to the axle. See Figure 7-8.
Figure 7-8