AC DOES NOT COOL OR COOLS INADEQUATELY - continued

DRAFT

TB 9-2320-364-13&P-1

AC DOES NOT COOL OR COOLS INADEQUATELY - Continued

WARNING

Moving engine components can cause severe injury. Keep away from fan, belts, and pulleys while

engine is running.

Remove rings, bracelets, wristwatches, neck chains, and any other jewelry before working around

vehicle. Jewelry can catch on equipment and cause serious injury. Jewelry or tools may short

across electrical circuits or terminals and cause damage to equipment or severe burns or

electrical shock to personnel.

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

comply may result in injury to personnel.

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VISUAL INSPECTION

(1)

Inspect AC condenser dryer. Note if frost or cool

spots are forming on AC condenser dryer.

(2)

Shut off engine (TM 9-2320-364-10).

(3)

Recover R-134a refrigerant (WP 0053).

(4)

If AC condenser dryer was free from frost and cool

spots in Step (1) above, replace AC expansion

valve (WP 0030).

(5)

Replace AC condenser dryer (WP 0024).

(6)

Evacuate and charge system (WP 0053).

(7)

Verify repair, go to Step 22 of this fault.

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VISUAL INSPECTION

(1)

Remove ten screws and right ECB side panel

(TM 9-2320-364-20).

(2)

Inspect system low-side AC hose from AC

evaporator core to AC compressor for frost and

cool spots.

(a) If hose is not free from frost and cool spots:

1. Shut off engine (TM 9-2320-364-10).

2. Recover R-134a refrigerant (WP 0053).

3. Replace restricted AC hose (WP 0039).

4. Replace AC condenser dryer (WP 0024).

5. Evacuate and charge system (WP 0053).

6. Verify repair, go to Step 22 of this fault.

(b) If hose is free from frost and cool spots, go to

Step 20 of this fault.

PLSAC215

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