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TM 9-4110-257-14
5-34. EXPANSION VALVE REPLACEMENT.
This task covers:
a.
Testing
b.
Removal
c.
Installation
INITIAL SETUP:
Equipment Conditions:
Refrigeration system discharged (para 5-7).
Defrost temperature switch removed (para 4-30).
a.
Removal.
(1)
Slip expansion valve sensing bulb (1) out from under two clamps (2).
(2)
Loosen three flare nuts (3) and remove expansion valve (4).
Figure 5-30. Expansion Valve
b.
Installation.
(1)
Install expansion valve (4) and tighten three flare nuts (3).
(2)
Slip expansion valve sensing bulb (1) under two clamps (2).
NOTE
FOLLOW-ON MAINTENANCE:
Install defrost temperature switch (para 4-30).
Replace dehydrator (para 5-14).
Leak check (para 5-10), evacuate (para 5-11), and charge (para 5-12) the refrigeration system.
5-67
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