Komatsu PW160-7H Operation & Maintenance Manual page 284

SERVICE PROCEDURE
❍ Bracket (4) holds the compressor in place. When bolts (1)
and (2) are loosened, bracket (4) moves with the securing
position of bolt (2) as a fulcrum.
2. Loosen nut (5) attached to fixed bracket (3), and then tighten
bolt (6).
Tighten bolt (6) so that the deflection of the belt will be
❍
5 ~ 8 mm (approx. 58.8N (6kgf)
3. Tighten bolts (1) and (2) to secure bracket (4).
4. Loosen bolt (6) to remove from bracket (4).
5. Tighten nut.
6. Check for damage to the pulleys, and wear of the V-groove
and V-belt. Be particularly careful to check that the V-belt is
not in contact with the bottom of the V-groove.
7. If the belt has elongated and there is no more allowance for
adjustment, or if the belt is cut or cracked, replace the belt.
8. After replacing the V-belt, operate for one hour, then adjust
again.
284
MAINTENANCE
PW160-7H VEAM390100