TM 9-4120-360-14
c. Make tubing connections from the condenser coil to
the receiver, and
tighten the clamping
screw in
the band
clamp.
d. Restart the flow of
dry nitrogen, and braze tubing joints to
the receiver.
e. Install the compressor and a
new falter-drier as
directed in
paragraph 5.23.
g. Install the junction box in accordance with the following instructions:
(1) Connect
the two wiring harness plugs to
the receptacles on
the rear surface of
the junction box.
(2) Temporarily disconnect the wiring harness lug from the control panel assembly, and install the control
panel assembly on the junction box. Position the temperature control thermostat sensor bulb through the hole and grom-
met in the floor of the air intake chamber and attach in place. Secure with four screws through the corners of the control
panel mounting flange. Reconnect the wiring harness plug to the control panel receptacle.
(3) Insert the end of the circuit breaker reset cable into the hole in the actuator arm connector plate. Slide the
core end fitting over the end of the cable, and tighten the setscrew finger-tight.
(4) Install two loop clamps on the circuit breaker reset cable, leaving at least 1/4inch of sheath below the
bottom loop clamp, Secure with two screws.
(5) Adjust core end fitting to provide 0.12-0.25 inch (3-6 mm) clearance below actuator arm connector
plate when circuit breaker handle is down and cable is fully extended.
h. Install the lower panel, and secure with two panel fastener screws in the upper edge of the panel.
i. Evacuate and charge the refrigeration system as
directed in
paragraphs 5.25 and 5.26.
k. Close both service valves, remove gauges, and inatall caps on valves. Install fresh air screen, and secure with
five screws.
Section XIV. SYSTEM SERVICE VALVES
5.74. Description (See figure 5-8).
Access to the internal refrigeration system is provided by the two system service valves, located just inside the fresh air
screen. The valves are connection points for pressure and vacuum gauges, nitrogen for purging and leak-testing, and for
charging refrigerant into the system.
8-35. Inspection/Test
Visually inspect the service valves for physical damage, broken chains and missing caps. Replace missing or broken parts
or damaged valves. Test for leaks, both with caps snugly screwed on and with caps off, in accordance with paragraph 5.24.
If leaks are detected with caps off, the valves are faulty. If leaks are detected with the caps on, the flare nut connections are
probably faulty.
8-36. Removal
Remove the service valves from the air conditioner in accordance with the following instructions:
a. Remove five screws from the fresh air screen, and remove the screen.
b. Refer to
figure 5-8 for identification of
service valves. Discharge the system in
accordance with paragraph
5.22.a.