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TM 5-4120-352-14
CAUTION
5-25.  Receiver.
Remove bonnet assembly and dir-
a. Removal. Refer to figure 6-1 and discharge
aphragm before applying heat to
the refrigerant system. Refer to figure 4-5 and re-
valve body.
move rear top cover. Remove four screws and two
mounting straps (fig. 5-8). Disconnect receiver
tubing.
(5) To remove liquid bypass solenoid valve
b. Installation. Install receiver and solder
(figure 5-8), remove two screws and spacers and un-
connections. Install two mounting straps and four
solder valve body from tubing. Remove bushings.
screws using sealing compound on screw threads.
(6) To remove equalizer solenoid valve, re-
Refer to figure 6-2 and charge the refrigerant
move two screws and lockwashers that secure valve
system.
body to bracket. Unsolder valve body and remove
bushings.
b. Installation. Install solenoid valves as fol-
lows:
a. Removal. Refer to figure 6-1 and discharge
(1) Install bushings in valve body and solder
the refrigerant system. Remove housing rear top
body on tubing.
cover (figure 4-5). Remove two screws and lock-
(2) When installing equalizer solenoid valve
washers from sides of liquid sight indicator (fig. 1-
body, secure body to bracket with two screws and
2) and remove mounting bracket (fig. 5-8) from in-
lockwashers installed from underside of bracket
side housing. Unsolder liquid sight indicator from
into valve body.
tubing.
(3) When installing liquid bypass solenoid
b. Installation. Solder liquid sight indicator
valve body, install spacers between body and hous-
on tubing. Place bracket over indicator on inside of
ing and install two screws from outside of housing.
housing and secure with two screws and lock-
(4) Place diaphragm in the body with the pilot
washers. Install housing top rear cover (figure 4-5).
port extension away from body. Hold plunger with
Refer to figure 6-2 and charge the refrigerant
synthetic seat against pilot port. Make sure pre-
system.
formed packings are in place and lower bonnet as-
sembly over plunger. Install body screws.
5 - 2 7 . Solenoid Valves.
(5) Connect electrical connector.
a. Removal. Removal procedures for the by-
(6) Refer to figure 4-5 and install housing rear
pass solenoid valve and the equalizer solenoid valve
top cover.
are the same except for the mounting hardware.
(7) Refer to figure 6-2 and charge the refrig-
(1) Refer to figure 6-1 and discharge the re-
erant system.
frigerant system.
(2) Refer to figure 4-5 and remove housing
5-28. Thermal Expansion Valve.
rear top cover.
a. General. The main thermal expansion valve
(3) Disconnect solenoid valve electrical con-
is hermetically sealed and cannot be repaired.
nector.
b. Removal. Remove the thermal expansion
(4) Remove two socket-head cap screws from
valve as follows:
underside of valve body and carefully remove bon-
(1) Refer to figure 6-1 and discharge the re-
net assembly. Do not drop plunger. Remove
frigerant system.
diaphragm.
(2) Remove housing top covers (figure 4-5).
(3) Soften mastic in bulb well (fig. 5-9) and re-
move bulb from well. Take care to prevent damage
to capillary tube.
(4) Unsolder thermal expansion valve from
tubing.
5-20

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