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 TM 5-4120-393-14
4-54. Unit Wiring Harnesses
This task covers:
a. Inspection/Testing
b. Repair
Initial setup.
Tools:
Tool kit, service, refrigeration unit NSN 5180-00-596-1474
Personnel: 1
Equipment condition:
1. Turn unit power off at power source. If there is a chance that it will be turned on, also disconnect power cable
to air conditioner.
2. Remove top panel. See para 4-25.
3. Remove conditioned air inlet grilles. See para 4-22.
4. Remove lower front panel. See para 4-24.
General Safety Instructions:
WARNING
Disconnect input power to the air conditioner before performing any internal
maintenance. Voltages used can KILL. Shutting the unit off at the control panel
does not disconnect unit power.
INSPECTION/TESTING
1.
Check connectors for general condition and loose, broken, or missing contacts. Replace damaged connectors.
2.
Check individual wires for loose solder connections, loose terminal lug connections, cut or frayed insulation, and cut
or broken wires.
3.
See wiring diagram, para 4-13, and continuity test individual wires. Repair or replace wires with no continuity.
REPAIR
1.
See paragraph 4-34 for general wire repair instructions.
2.
See table 4-3 for wire lengths and terminal/connector information.
NOTE
FOLLOW ON MAINTENANCE:
1.
Install top panel. See para 4-25.
2.
Install conditioned air inlet grilles. See para 4-22.
3.
Install lower front panel. See para 4-24.
4.
Connect power.
4-125
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