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
9.
TEST OPTIONS
Cab controls and remote
Is there continuity
Continuity Test.
control inoperative.
between the main
Cab control box OK.
junction box connec-
REASON FOR QUESTION
Linking harness OK.
tor (J4) and the junc-
To verify the integrity of
tion box terminal
POSSIBLE PROBLEMS
the main junction box
strip?
wiring.
Main junction box wiring
faulty.
Main frame LOAD
solenoid harness faulty.
Replace main
junction box wiring
NO
YES
Change 1
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