TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
13. MAIN FRAME DOES NOT LOAD IN MANUAL MODE (MODEL A ONLY)
(continued).
KNOWN INFO
12.
TEST OPTIONS
Continuity Test.
Remote control does not
Is there continuity
work at either side.
between the main
Remote control unit OK.
junction box connector
REASON FOR QUESTION
Remote control cable
(J4) and the junction
To verify the integrity of
OK.
box terminal strip?
the main junction box
POSSIBLE PROBLEMS
wiring.
Main junction box wiring
faulty.
Linking harness faulty.
Cab control box faulty.
Replace main
junction box
NO
harness (para
YES
Change 1
4-260
