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ARMY TM 9-4120-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
INSERT SUBTITLE HERE!
This task covers:
Service
INITIAL SETUP:
Tools
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Gloves, chemical (Appendix C)
Goggles, industrial (Appendix C)
Personnel: 1
Equipment Conditions:
1.
Replacement part has been leak tested per paragraph 5-15.
2.
Remove right front evaporator panel (para 4-25).
3.
Replace drier filter if required (para 5-26).
SERVICE
WARNING
Death or serious injury may result if personnel fail to observe safety precautions. Use great care to
avoid contact with liquid refrigerant or refrigerant gas being discharged under pressure. Sudden and
irreversible tissue damage can result from freezing. Wear thermal protective gloves and a face
protector or goggles in any situation where skin-eye-contact is possible.
1.
Remove discharge and suction gauge caps.
2.
Connect high pressure hose (red) to compressor discharge valve.
3.
Connect low pressure hose (blue) to compressor suction valve.
4.
Remove yellow 3/8 inch hose end from hose rack and place in container.
5.
Open CGV and PGV.
6.
Check compressor discharge service valve is frontseated (clockwise).
7.
Backseat (counterclockwise) compressor suction valve.
8.
Open head service valve slowly to allow liquid refrigerant to enter system.
9.
Slowly open CV and allow refrigerant to flow out into container (30 seconds to one minute) until system is purged.
10. Backseat (counterclockwise) hot gas bypass service valve (see Figure 5-18).
11. Backseat (counterclockwise) compressor discharge valve.
12. Close CGV, PGV and CV service manifold valves.
13. Remove all service manifold hoses and return to manifold rack.
14. Install discharge, suction, head, and hot gas bypass protective caps.
5-43
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