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
INITIAL SETUP
Tools:
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Personnel: 1
Material:
Equipment Conditions:
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, and
(2)
INSPECTION
a.
Inspect for evidence of leaks, kinked, or otherwise damaged capillary line, and loose or missing mounting
b.
Check thermal bulb to see that it is securely clamped to the suction line.
c.
ADJUSTMENT
a.
Perform a refrigerant pressure check in accordance with paragraph 5.16 Leave gauges attached
b.
Attach an accurate thermocouple to an exposed surface of suction line adjacent to the sensing bulb
c.
d.
Check that service valve and gauge connection to compressor suction service valve are open.
Note
pressure indicated on gauge and temperature indicated on thermometer.
5-69