TM 9-2320-280-34
14-27.5. EXPANSION VALVE REPLACEMENT (R-134a) (Cont'd)
b. Installation
CAUTION
During installation of expansion valve, avoid excessive bending or kinking
of control tube and pressure tube.
Avoid overtightening of clamp securing expansion valve control tube to
outlet tube.
1.
Lubricate all O-rings with lubricating oil at installation.
2.
Install O-ring (2) and expansion valve (3) on inlet tube (1).
3.
Install O-ring (4) and lower tube (5) on expansion valve (3).
4.
Install O-ring (7) and expansion valve pressure tube (6) on outlet tube (8).
5.
Slide control tube (12) in clamp (10) and tighten clamp (10).
6.
Install moisture seal (9) around evaporator outlet tube (11) and control tube (12).
2
3
1
12
11
4
10
5
9
6
8
7
FOLLOW-ON TASKS: Close evaporator blower housing (TM 9-2320-280-20).
Evacuate and charge air-conditioning system (para. 14-27.1).
Change 2
14-134.25
