TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
16. MAIN FRAME, HOOK ARM, AND WINCH DO NOT OPERATE (continued).
2.
TEST OPTIONS
KNOWN INFO
Visual inspection.
LHS/winch operate from
Do the LHS/winch func-
cab or remote control.
tions operate from only
the remote control (cab
REASON FOR QUESTION
POSSIBLE PROBLEMS
controls inoperative)?
If the LHS/winch operate
Function switch faulty.
from the remote control
EMERGENCY STOP
and not the cab, the
switch faulty.
problem is located in the
Remote linking harness
cab control box.
faulty.
Remote control faulty.
Remote control cable
faulty.
LHS functions from
cab controls only;
NO
go to Step 4.
YES
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