4-12. UNIT TROUBLESHOOTING (continued).
16. MAIN FRAME, HOOK ARM, AND WINCH DO NOT OPERATE (continued).
(1) Disconnect remote control cable
from remote control unit.
(3) Position EMERGENCY STOP
switch in the ON position.
A reading of infinity during the
activation of any function
indicates an open circuit in the
positions E and L on remote
control unit and have an assistant
activate the MAIN FRAME (LOAD
and UNLOAD), HOOK ARM
(LOAD and UNLOAD) and WINCH
(IN and OUT) controls one at a
time. Check multimeter for
each individual function.