Check, Adjust Tension Of Air Conditioner Compressor Belt - Komatsu PC128UU-2 Operation & Maintenance Manual

Hydraulic excavator
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MAINTENANCE PROCEDURE

CHECK, ADJUST TENSION OF AIR CONDITIONER COMPRESSOR BELT

If the fan guard has been removed, always be sure to install it again.
If it is left removed, you may touch the belt and fan by accident and suffer serious injury.
Checking
1.
Open the engine hood and remove fan guard (1).
2.
Press the belt at a point midway between the drive pulley
and compressor pulley with a finger force of approx. 58.8
N (6 kgf) and check that the deflection is 5 - 8 mm (0.20
in - 0.31 in).
3.
After completion of the inspection, install fan guard (1).
4-50
WARNING
MAINTENANCE

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