TB-9-2320-279-13-1

TECHNICAL BULLETIN; AIR CONDITIONING SYSTEM

OPERATOR’S, UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL, INSTALLATION INSTRUCTIONS, AND REPAIR PARTS AND SPECIAL TOOLS LISTS

DECEMBER 2005

TB-9-2320-279-13-1 - Page 145 of 524

TB 9-2320-279-13-1

0013-3

AC COMPRESSOR EXCESSIVELY NOISY - Continued

DRAFT

WARNING

Wear protective goggles and nonleather gloves when servicing air conditioner system.

Failure to

comply may result in injury to personnel.

HEMAC141

VISUAL INSPECTION

(1) Open driver side engine cover and remove engine

side panel (TM 9-2320-279-10).

(2) Inspect AC compressor and AC compressor pulley/

clutch assembly for damage.

(a) If AC compressor or AC compressor pulley/

clutch assembly is damaged:

1.

Recover R-134a refrigerant (WP 0050).

2.

Replace AC compressor (WP 0023).

3.

Replace AC condenser dryer (WP 0025).

4.

Evacuate and charge system (WP 0050).

5.

Verify repair, go to Step 4 of this fault.

(b) If AC compressor or AC compressor pulley/

clutch assembly are free from damage, go to

Step 2 of this fault.