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TM 5-4210-220-12
4-24. ELECTRICAL SYSTEM - Continued
4-24.13 Volt Radio converter.
This task covers
a.
Replacement
TOOLS
MATERIAL PARTS
Tool Kit, General Mechanic, Automotive,
12T2 4RA Converter
NSN 5180-00-177-7033
EQUIPMENT CONDITION
Main Engine Shutdown (see para. 2-10)
APU Shutdown (see para. 2-12)
Batteries Disconnected
REPLACEMENT
a
Switch Unit Replacement
(1)
Tag and disconnect wires to switch and lamp module.
(2)
Remove switch module by removing screws.
(3)
Remove and replace switch or lamp holder
depending which has failed.
(4)
Reconnect switch module to instrument panel.
(5)
Connect wires as noted in step 1 preceding.
B
Converter Module Replacement.
(1)
Tag and disconnect 24-volt wires to radio.
(2)
Tag and disconnect 12-volt and ground wires.
(3)
Remove four screws attaching module to heater
assembly.
(4)
Remove converter module from truck
(5)
Replace converter module and attach using four
screws.
(6)
Reconnect wires as noted in steps 1 and 2 preceding.
4-459
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