TM 9-4120-378-14
INITIAL SETUP
Materials/Parts:
Equipment Conditions:
Solder (Item 2, Appendix E)
Top front cover removed
Flux (Item 15, Appendix E)
Evaporator inlet louver removed
Test Equipment:
Mutimeter or continuity tester
Control module removed
Variable voltage power source (AC/DC)
Location/Item
Action
Remarks
Junction Box
Disconnect air conditioner power supply
before doing maintenance work on the
electrical system.
a
Removal
Remove seven screws (1) and seven lockwash-
ers (2) that secure the junction box to the hous-
ing,
b.
Partially remove the junction box by pulling it for-
Support the junction box to re-
lieve the strain on wiring.
ward and out of the air conditioner.
It is not necessary to remove junction box com-
Most repairs and replace-
c.
pletely from unit.
ments can be made without
removing junction box com-
pletely.
Junction Box
a . Inspect junction box for damage.
Inspection
Inspect all designation part markings for illegibili-
b.
ty.
c.
Inspect all designation plates and instruction
plates for damage and illegibility.
d.
Replace damaged designation markings, instruc-
tion plates and designation plates.
e.
Replace junction box if damaged enough to pre-
vent normal operation of air conditioner.
