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 155 of 524

TB 9-2320-279-13-1

0014-5

AC COMPRESSOR DOES NOT SHUT OFF OR CYCLES CONSTANTLY - Continued

DRAFT

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HEMAC170

VISUAL INSPECTION

(1) Open driver side engine cover and remove engine

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

(2) Inspect AC compressor belts for looseness and

damage.

(a) If AC compressor belts are missing, damaged,

or loose, replace or tighten belts as required

(WP 0022).

(b) If AC compressor belts are tight and free from

damage, go to Step 3 of this fault.

VISUAL INSPECTION

(1) Turn engine start switch ON (TM 9-2320-279-10).

(2) Turn fan control switch to an on position (low,

medium, or high) (WP 0004).

(3) Turn temperature control switch to the coldest

position (fully clockwise) (WP 0004).

(4) Verify operation of AC condenser fan.

(a) If AC condenser fan does not operate, turn

engine start switch OFF and go to Step 5 of this

fault.

(b) If AC condenser fan operates, turn engine start

switch OFF and go to Step 4 of this fault.