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BELT ADJUSTMENT
Traction Drive Belt
After approximately ten hours of operation, a new belt will
stretch and require an adjustment of the belt tension. Also, if
your snow thrower experiences a loss of power under heavy
load, check the condition of the traction drive belt. If it is
damaged or loose, replace it (see "How To Replace The
Belts" in this section of the manual).
1. Disconnect spark plug wire.
2. Unlock both left and right wheel locks. See "How To Use
The Wheel Lockout" in the Operation section.
3. Remove screw from belt cover. Remove belt cover
(see Figure 33).
4. Loosen nut on traction idler pulley and move traction idler
pulley towards belt about 1/8 inch (3 mm) (see
Figure 39).
5. Tighten nut.
6. Have someone engage traction drive clutch. Check ten-
sion on belt (opposite idler pulley). The belt should de-
flect about 1/2 inch (12.5 mm) with moderate pressure
(Figure 34). You may have to move idler pulley more
than once to obtain the correct tension.
7. Reinstall belt cover.
8. Attach the spark plug wire. Before operation, check the
belt tension as follows:
a. Unlock both left and right wheel locks. See "How To
Use The Wheel Lockout" in the Operation section.
b. Move the shift lever to NEUTRAL position.
c. DO NOT engage the traction drive lever.
d. Start the engine.
e. Slowly move the shift lever forward. Watch the axles
for rotation. If the axles rotate, the traction drive belt
is too tight.
f. If the belt is too tight, again adjust the belt. After
each adjustment, check the belt tension before op-
erating.
9. In correct adjustment, the snow thrower will not experi-
ence a loss of power under heavy load and the drive will
automatically disengage when the traction drive lever is
released.
1741078
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ADJUSTMENT/REPAIR
28
Screw
Idler Pulley
Engaged
Belt Cover
Figure 33
Traction Drive
Engine Pulley
1/2 inch
(12.5mm)
Deflection
Figure 34
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