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TN 9-4120-389-14
SECTION III
TROUBLESHOOTING TABLE 5-1. (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
SUCTION PRESSURE TOO HIGH
Step 1.
Check operation of compressor per paragraph 5-24.
Replace faulty compressor per paragraph 5-24.
Step 2.
Check condition of liquid quench expansion valve bulb. Check to see that it is properly
contacted to suction line.
Replace liquid quench expansion valve with damaged
bulb (see paragraph 5-17).
Secure bulb to suction line.
Step 3.
Check performance of liquid quench expansion valve per paragraph 5-17.
Replace defective liquid quench expansion valve (see para. 5-17).
5-22
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