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ARMY TM 9-4210-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
5-46. COMPRESSOR.
This task covers:
Service
Testing
Removal
Repair/Replace
Installation
Bum Out Procedure
INITIAL SETUP:
Tools:
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Nitrogen regulator (Item 25, Appendix B)
Wrecking bar (Item 4, Appendix B)
Kit, compressor removal (Item 14, Appendix B)
Gauge set, telescopic (Item 24, Appendix B)
Gloves, chemical (Appendix C)
Goggles, industrial (Appendix C)
Materials:
Rags (item 12, Appendix E)
Lubricating oil #Zerol 150 (Item 9, Appendix E)
Lubricating oil SS-291 (Item 10, Appendix E)
R-11 refrigerant (Item 22, Appendix E)
Personnel: 2
Equipment Conditions:
WARNING
Disconnect input power to the air conditioner before performing any internal maintenance. Voltages
used can KILL Shutting the unit off at the control panel does not disconnect unit power.
1. Disconnect air conditioner input power at source.
2. Remove right front condenser panel (para 4-28).
SERVICE
1.
Check sight glass. Refrigerant oil should be between 1/4 min and 1/2 max (see Figure 5-34).
2.
Add or remove refrigerant oil as necessary (see step 3 for oil removal and step 4 for adding oil).
3.
Oil Removal.
a. Pump down system (para 5-21).
b. Discharge compressor (para 5-19).
c. Remove drain plug and drain excess oil into container.
d. Install drain plug.
e. Check sight glass, refrigerant oil should be between 1/4 min and 1/2 max.
f. Add refrigerant oil (step 4) as necessary.
g. If oil is not added, perform startup after repairs (para 5-22).
5-101
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