TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
14. MAIN FRAME DOES NOT UNLOAD IN MANUAL MODE (MODEL A ONLY)
(continued).
KNOWN INFO
6.
TEST OPTIONS
Continuity Test.
Cab controls and remote
Is continuity measured
control inoperative.
on the main frame
Cab control box OK.
LOAD solenoid har-
REASON FOR QUESTION
Main linking harness OK.
ness?
Power to activate the main
Main junction box wiring
frame UNLOAD solenoid
OK.
is transferred from the
POSSIBLE PROBLEMS
main junction box to the
solenoid via this harness.
Main frame UNLOAD
Faults in this harness will
solenoid
prevent operation from
harness faulty.
both the cab and remote
controls.
Replace main
frame UNLOAD
NO
solenoid harness
Fault not corrected.
YES
Notify supervisor.
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