4-12. UNIT TROUBLESHOOTING (continued).
11. HOOK ARM DOES NOT LOAD IN MANUAL MODE (MODEL A ONLY) (continued).
Electrical power must be shut off
be checked. Failure to comply
with this caution may result in dam-
age to test equipment or electrical
and access cover from heater
from cab control box.
(3) Remove six screws from cab control
box, and separate upper body from
A reading of infinity indicates an open
terminals. Hold the joystick in the
LOAD position, and check multimeter