ARMY TM 9-4120-380-14
NAVY EE-000-BA-MMA-010 7053-AC
AIR FORCE TO 35E9-136-21
5.31. EXPANSION VALVE (V6) (LIQUID QUENCH). This task covers inspection, adjustment, removal, disassembly,
repair/replace, reassembly and installation
Tool kit, service, refrigeration unit (Item 1, Appendix B)
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.
Disconnect air conditioner input power at source, and
Inspect for evidence of leaks, kinked, or otherwise damaged capillary line, and loose or missing mounting
Check thermal bulb to see that it is securely clamped to the suction line.
Perform a refrigerant pressure check in accordance with paragraph 5.16 Leave gauges attached
Attach an accurate thermocouple to an exposed surface of suction line adjacent to the sensing bulb
Check that service valve and gauge connection to compressor suction service valve are open.
pressure indicated on gauge and temperature indicated on thermometer.