Troy-Bilt 500 series manual Friction Wheel Rubber, Drive Belt

9.Re-install frame cover and flip the snow thrower back to the operating position.

10.Wrap auger belt around the engine pulley.

11.Re-install belt cover with self-tapping screws removed before.

Drive Belt

3.*Push idler counter-clockwise and insert a Philips head screwdriver in the hole on the idler as shown in Figure 20. This will release tension on drive belt.

Engine	Auger Belt
Pulley

Drive Belt

Idler

Figure 20

4.Pull drive belt out and away from the engine pulley to remove. See Figure 20.

5.Tip the snow thrower up and forward, so that it rests on the housing. Remove two self-tapping screws from frame cover underneath the snow thrower and move the frame cover away. Refer to Figure 18.

6.Back out the stop bolt to create sufficient gap between the friction wheel disc and the drive pulley. Pull the drive belt from around the drive pulley and clear it off the friction wheel disc. See Figure 21.

Drive	Friction
	Wheel
Belt
	Drive Pulley

Stop

Bolt

crank shaft, then working it around the groove of the drive pulley and finally wrapping it around the engine pulley from where the old belt was removed. Once the belt is firmly placed on the pulleys, make sure to remove the screwdriver from the idler.

9.Re-install auger belt on the engine pulley.

10.Re-attach frame cover on the snow thrower frame and put the equipment back to operating position. Re-attach belt cover with two self-tapping screws removed earlier.

Friction Wheel Rubber

1.Check the rubber on the friction wheel after 25 hours of operation, and periodically thereafter. Replace the rubber if any signs of wear or cracking are found.

2.Drain the gasoline from the snow thrower, or place a piece of plastic under the gas cap. Move shift lever to the R2 position.

3.Tip the snow thrower so that it rests on the housing. Remove two self-tapping screws from the frame cover underneath the snow thrower.

4.Remove bolt securing the right wheel, and remove the wheel from the axle.

5.Remove the four screws securing the right drive cover to the frame. Remove the drive cover from the side of the frame. See Figure 22.

6.Holding the friction wheel assembly, slide the hex shaft to the right. See Figure 23. The spacer on right side of hex shaft may fall.

7.Lift the friction wheel assembly out between the axle shaft and the drive shaft assemblies.

8.Remove the four screws from the friction wheel

assembly. Remove friction wheel rubber from between the friction wheel plate. See Figure 24.

.

Drive Cover

Bolt

Spacer

Figure 21 Figure 22

7.Now moving to the other side of the snow thrower again, slide the belt off the crankshaft.

8.Replace with new belt, first sliding it through the

*. First two steps are on page 14.

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