DRAFT
TB 9-2320-364-13&P-1
AC SYSTEM REFRIGERANT (R-134a) MAINTENANCE - Continued
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PLSAC234
NOTE
If two gages indicate pressure, recover refrigerant from service station hoses before
performing Step 6.
6. Select VACUUM and press ENTER on LCD screen (14).
7. Adjust time to 30 minutes.
8. Turn panel low side valve (15) and panel high side valve (16) to 3 o'clock position, then press START.
9. When evacuation time is FINISHED, press EXIT.
10. Turn panel low side valve (15) and panel high side valve (16) to 12 o'clock position, then press NEXT.
NOTE
Any rise in vacuum indicates a leak in the AC system.
11. Monitor low side pressure gage (17) for five minutes.
NOTE
If there is a change in pressure after five minutes, perform Steps 12 through 15. Change
of pressure indicates a leak in the system.
If there is no change in pressure after five minutes, proceed to Step 16, evacuation is
complete.
12. Partially charge AC system.
13. Perform a leak test inspection (WP 0052).
14. If a leak is found, repair leak as required.
15. Recover refrigerant and repeat evacuation procedure.
0053-11