4-12. UNIT TROUBLESHOOTING (continued).
14. MAIN FRAME DOES NOT UNLOAD IN MANUAL MODE (MODEL A ONLY)
(1) Open hydraulic cabinet cover.
(2) Loosen four screws on main junction
box cover and open cover.
Electrical power must be shut off
be checked. Failure to comply with
this caution may result in damage
to test equipment or electrical sys-
A reading of infinity indicates an open
WIRING REMOVED FOR CLARITY
(4) Connect multimeter to terminals at
each end of wire, and check
between main junction box connector
(J4), position F, and terminal strip,
position 19. Also check between main
junction box connector (J4), position
MAIN JUNCTION BOX
Q, and terminal strip, position 20.