TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
16. MAIN FRAME, HOOK ARM, AND WINCH DO NOT OPERATE (continued).
6.
KNOWN INFO
TEST OPTIONS
Continuity Test.
Is continuity measured
Cab controls OK.
on the remote control
EMERGENCY STOP
REASON FOR QUESTION
connector (J9), be-
switch OK.
tween positions L and
Remote linking harness
On all remote control
E, when each function
OK.
functions, power is sup-
is activated?
POSSIBLE PROBLEMS
plied to the free flow valve
solenoid via position E on
Remote control faulty.
the remote control con-
Remote control cable
nector. If no continuity
faulty.
(open circuit) is measured
between E and L during
any remote function, that
LHS or winch function will
not operate.
Repair remote
control unit
NO
YES
4-360
