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