TM 9-2320-280-34
Table 2-3. Air Conditioning Troubleshooting (Cont'd)
MALFUNCTION
TEST OR INSPECTION
5. UNUSUAL NOISE WITH CLUTCH DISENGAGED
a. Check Clutch Air Gap (space between pulley and front clutch plate) (para. 14-27 or 14-27.11) with feeler gauge. Gap
must be within range of 0.016 - 0.031 in. (0.406 - 0.787 mm). If air gap cannot be adjusted to specifications, add or
remove shims (malfunction 3b, steps 1 and 2).
b. Check for defective clutch pulley or front plate. Replace as necessary (para. 14-27 or 14-27.11).
END OF TESTING!
6. INCORRECT OIL LEVEL OR LEAK
After a system component has been replaced or there is reason to suspect an incorrect oil level or leak, use the
following procedure to check the oil level:
NOTE
Delete step 1 of this procedure if the compressor has been removed from vehicle.
Step 1.
Run compressor for ten minutes at engine idle (6.2 L at 650 rpm, 6.5 L at 700 rpm).
Step 2.
Check compressor oil level (para. 14-17 or 14-27.1).
END OF TESTING!
Change 2
