TM 9-4120-357-14
(3) Loosen the setscrew in
the core end fitting (14, figure 4-3) and slide the end fitting of
the cable core. Remove
two screws and washers from the hold-down clamp (16), and move cable out of the way.
(4) Remove six screws (7) from the junction box mounting flange, and two screws (8) and washers (9) from the
mounting bracket. Remove ground wire and connectors J17 and J19. Remove the junction box.
g. Removal of Condenser Fan Motor. Remove the condenser fan motor as
follows: (See figure 4-4.)
(1) Disconnect the electrical connector from the fan motor receptacle (3).
(2) Remove four screws, lockwashers and washers from bottom of
motor support plate. Lift out motor from
back of unit.
(3) If
motor is to be
re-installed, note position of
shims (11 &
12, figure 4-4), and retain on
motor support.
h. Removal of Pressure Cutout Switches. The high-low-pressure cutout switches are mounted behind the rectan-
gular panel at the left of the condenser fan motor. (See figure 1-3.) They are connected by capillary tubes to the refrig-
eration system; therefore, they must be handled with care to prevent kinking or breaking the capillary tube.
(1) Remove four screws above and below the pressure cutout switch reset buttons.
(2) Reach through the upper part of the fan shroud to grasp the pressure cutout switch box. Rock it gently to be
sure that it is free from the panel and adequately supported by electrical leads and capillary tubes.
i. Removal of Circuit Breaker Actuator. Remove circuit breaker actuator from rear panel as follows:
(1) Pull knob (18, figure 4-3) and actuator rod out slightly, and grip the rod firmly with a
copper or
brass strip held
in a pair of pliers.
(2) Unscrew the knob by hand, if possible, or by gripping lightly with a second pair of pliers.
(3) Unscrew and remove retaining nuts and lock washer from ferrule (17), and ferrule through hole in panel.
j. Removal of Grounding Stud. (See figure 1-3.) Remove nuts and washers from grounding stud and press stud
through hole in panel.
k. Removal of Back Panel. Remove 36 screws from top, bottom and sides of back panel and motor mount assem-
bly, and remove the panel assembly and condenser intake screen from the casing.
I. Installation of Pressure Cutout Switches. With the back panel and motor support assembly leaning against the
back of the air conditioner, position the pressure cutout switches against the inside of the panel. Secure with four screws
from the outside.
m. Installation of Grounding Stud. Attach grounding wire from junction box to grounding stud with a washer on
each side of the terminal. Push stud through hole in panel and install a washer, nut, two more washers and another nut
on outside end of stud. Tighten the nut nearest the panel.
n. Installation of Circuit Breaker Actuator. Insert ferrule of
circuit breaker actuator (17, figure 4-3) through hole in
panel, and install retaining nuts. Screw knob on end of shaft, holding shaft firmly with pliers while tightening knob hand
tight.
o. Installation of Back Panel and Motor Support Assembly. Position the back panel and condenser inlet screen
on the air conditioner casing, and push into place until screw holes are aligned. Secure with 36 screws on top, bottom
and both sides.
p. Installation of Motor. Insert the motor through the back panel and position it on the motor support plate. Install
shims (11 & 12, figure 4-4) as required. Secure with four screws and washers through bottom of support plate. Connect
the electrical plug to the receptacle on motor.
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