4-24. ELECTRICAL SYSTEM - Continued
4-24.13 Volt Radio converter.
This task covers
Tool Kit, General Mechanic, Automotive,
12T2 4RA Converter
Main Engine Shutdown (see para. 2-10)
APU Shutdown (see para. 2-12)
Switch Unit Replacement
Tag and disconnect wires to switch and lamp module.
Remove switch module by removing screws.
Remove and replace switch or lamp holder
depending which has failed.
Reconnect switch module to instrument panel.
Connect wires as noted in step 1 preceding.
Converter Module Replacement.
Tag and disconnect 24-volt wires to radio.
Tag and disconnect 12-volt and ground wires.
Remove four screws attaching module to heater
Remove converter module from truck
Replace converter module and attach using four
Reconnect wires as noted in steps 1 and 2 preceding.