Troy-Bilt 500 series, Operator'S Manual

Page: 15 / 29

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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.
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.
Figure 21
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
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.
.
Figure 22
*.
First two steps are on page 14.
Engine
Pulley
Idler
Drive Belt
Auger Belt
Stop
Bolt
Drive Pulley
Friction
Wheel
Drive
Belt
Drive Cover
Bolt
Spacer