4-12. UNIT TROUBLESHOOTING (continued).
11. HOOK ARM DOES NOT LOAD IN MANUAL MODE (MODEL A ONLY) (continued).
CAB CONTROL BOX
and access cover from heater
(2) Remove cab control box connector
(P2) from cab control box.
Electrical power must be shut off
be checked. Failure to comply
with this caution may result in dam-
age to test equipment or electrical
(3) Remove main junction box connector
(J4) from junction box.
A reading of infinity indicates an open
(5) Connect multimeter leads to each
end of wire, and check multimeter for
harness, position J.
Any reading besides infinity indicates
a grounded wire.
of wire and connect to chassis
MAIN JUNCTION BOX