CHARGING - continued - TB-9-2320-364-13-P-10458

DRAFT

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

AC SYSTEM REFRIGERANT (R-134a) MAINTENANCE - Continued

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PLSAC238

16. Turn panel low side valve (18) to 9 o'clock position.

17. Monitor the charge weight and turn panel low side valve (18) to 12 o'clock position after 3 lbs. (1.4 kg) of

refrigerant has entered AC system.

18. Turn AC system OFF (WP 0004).

19. Shut engine OFF (TM 9-2320-364-10).

NOTE

Any rise in vacuum indicates a leak in the AC system.

20. Monitor low side pressure gage (19) and high side pressure gage (20) for five minutes.

NOTE

If there is a change in pressure after five minutes, perform Steps 21 through 23. Change of

pressure indicates a leak in the system.

If there is no change in pressure after five minutes, proceed to Step 24, charging is

complete.

21. Perform a leak test inspection (WP 0052).

22. If a leak is found, recover refrigerant and repair leak as required.

23. Repeat charging procedure.

0053-18