4-12. UNIT TROUBLESHOOTING (continued).
16. MAIN FRAME, HOOK ARM, AND WINCH DO NOT OPERATE (continued).
Electrical power must be shut
can be checked. Failure to
comply with this caution may
CAB CONTROL BOX
result in damage to test
equipment or electrical
(1) Disconnect main junction box
connector (P4) from junction box.
A reading of infinity indicates an open
(3) Connect multimeter to leads at each
end of wire and check multimeter for
harness, positions A and N.
Any reading besides infinity indicates
a grounded wire.
of wire and connect to chassis
MAIN JUNCTION BOX