Belt Adjustment; How To Replace - Craftsman 536.887991 Operator's Manual

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BELT ADJUSTMENT
Traction Drive Belt
The traction drive belt has constant
spring pressure and does not require
an adjustment. If the traction drive belt
is slipping, replace the belt. See "How
To Replace The Belts" in the Service
And Adjustment section.
Auger Drive Belt
If your snow blower will not discharge
snow, check the control cable adjust-
ment. If it is correct, then check the
condition of the auger 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. Remove screw from belt cover.
Remove belt cover (see Figure 17),
5. Have someone engage auger drive
clutch. Check tension on belt (op-
posite idler pulley). Belt should de-
flect about 1/2 inch (12.5 mm) with
moderate pressure (Figure 18). You
may have to move idler pulley more
than once to obtain the correct ten-
sion.
Auger
( ve
--j_ _ Pulley
J _t\0 1/2 inch
/- \_ (12.5turn)
Idler __.._-('/c .7\_ s_ Deflection
Pulley 7oJ " "_
Engaged /_ _
Figure 18
6. Reinstall belt cover.
7. Whenever belts are adjusted or re-
placed, the cables will need to be
adjusted. (See Cable Adjustment in
this section of the manual).
3. Loosen nut on auger idler pulley
and move auger idler pulley towards
belt about 1/8 inch (3 ram) (see
Figure 20).
4. Tighten nut.
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8. Attach the spark plug wire.
HOW TO REPLACE THE BELTS
The drive belts are of special construc-
tion and must be replaced with original
equipment replacement belts available
from your nearest Sears service center.
Some steps require the assistance of a
second person.
How To Remove the Auger Drive Belt
If the auger drive belt is damaged, the
snow thrower will not discharge snow.
Replace the damaged belt as follows.
1. Disconnect the spark plug wire.
2. Loosen the bolts on each side of
the bottom panel (see Figure 19).