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4.11 Maintenance procedure
Every 250 hours service
Check, adjust tension of air conditioner compressor belt
Checking
Press the belt at a point midway between the drive pulley and
compressor pulley with a finger force of approx. 60 N (6 kgf) and
check that the deflection is 6.3 - 8.7 mm.
Adjusting
1. Loosen bolts (1) and (2).
Compressor (3) is installed to bracket (4), so when bolts (1)
and (2) are loosened, it becomes possible to move bracket
(4) with the mounting position of bolt (2) as the fulcrum.
2. Loosen bolt (1) and bolts (2), then move compressor (3) to
adjust.
3. When the position of the compressor is determined, tighten
bolts (1) and (2) to hold it in position.
4. Check for damage to the pulleys, and wear of the V-groove
and V-belt. Be particulary careful to check that the V-belt is
not in contact with the bottom of the V groove.
5. If the belt has elongated and there is no more allowance for
adjustment, or if the belt is cut or cracked, replace the belt.
6. After replacing the V-belt, operate for one hour, then adjust
again.
4-74
Compressor pulley
6.3 - 8.7 mm
Drive pulley
1
2
1
2
PW180-7E0 – VEAM400102
Maintenance
GK018438
4
3
3
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