SECTION 50 - CAB HEATING AND AIR CONDITIONING 57
OVERHAUL COMPRESSOR
The compressor drive belt (1) can be tensioned by
rotation of the idler arm (2). Slacken the idler arm
bolt and adjust the arm to a belt deflection of 16 mm.
Once adjusted re-torque the tension arm bolt to 33.9
Nm.
Before any internal repair is done, drain the oil from
the compressor:
Z Remove the oil plug and drain as much oil as pos-
sible into a suitable container.
Z Remove the caps (if present) from suction and dis-
charge ports.
Z Drain oil from the section and discharge ports into
suitable container while turning the shaft clockwise
only with a socket wrench on the armature retain-
ing nut.
Z Measure and record the amount of oil discharged.
Z Inspect the oil for signs of contamination such as
discoloration of foreign material.
F28726
1
2
F28727
CC
F28728
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