Komatsu WA800-1 Operation & Maintenance Manual page 86

EVERY 250 HOURS SERVICE
c. AIR CONDITIONER
COMPRESSOR BELT
1. The belt tension should normally
deflect by about 10 mm when
pressed with the finger at a point
midway between the air condi-
tioner compressor pulley and the
drive pulley (approx. 6 kg).
2. To adjust the belt tension, loosen
bolts (I) and lock nut (31, and
rotate adjusting bolt (2).
3. After adjustment, tighten bolts
(1) and lock nut (3) securely.
* After operating the machine for
one hour with a newly exchanged
V-belt, test and adjust the V-belt
again.
* When adjusting the V-belt, do
not attempt to push the compres-
sor directly with a bar or the like,
but use a wood pad to prevent
damage to the core.
t Check each pulley for damage,
and V-grooves and V-belt for
wear. Particularly, check whether
V-belt is in contact with bottom
of V-groove through wear.
* Replace belt if it has stretched,
leaving no allowance
for
adjustment, or if there is a cut or
crack on belt.
W-02073
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