TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
13. MAIN FRAME DOES NOT LOAD IN MANUAL MODE (MODEL A ONLY)
(continued).
KNOWN INFO
14.
TEST OPTIONS
Continuity Test.
Remote control does not
Is there continuity at
work at either side.
the cab control box
Remote control unit OK.
between the (9-pin)
REASON FOR QUESTION
Remote control cable
linking harness connec-
In the remote control
OK.
tor (J5), position F, and
mode, the power to acti-
Main junction box wiring
the cab control box
vate the main frame LOAD
OK.
connector (J2), position
solenoid passes through
Linking harness OK.
H?
the cab control box on the
way to the main junction
POSSIBLE PROBLEMS
box and solenoid. If the
Cab control box faulty.
cab control box internal
circuit is open, the remote
control will not function.
Repair cab control
NO
box (para 4-71).
Fault not corrected.
YES
Notify supervisor.
Change 1
4-264
