TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
19. BAP WINCH DOES NOT WIND IN (MODEL B ONLY) (continued).
NOTE
The digital controller and the cab control box are not repairable,
therefore, it is necessary to test the digital controller and cab
interface wiring harnesses, switches, solenoids, and other com-
ponents to identify possible faults other than the digital controller
and the digital cab controller.
12.
TEST OPTIONS
KNOWN INFO
Is there continuity
Error Code, EC 07.
Continuity Tests.
measured at the winch
Remote control unit OK.
REASON FOR QUESTION
in valve solenoid?
Remote control cable
OK.
If there is no continuity
Cab digital control box
at the designated
OK.
positions on the winch in
Cab interface wiring
valve solenoid, the 24
harness OK.
volt power from the
Digital controller wiring
digital control box does
harness OK.
not activate the valves.
POSSIBLE PROBLEMS
Winch in directional
control valve faulty.
Digital control box faulty.
Repair or replace
winch in
NO
directional control
valve (para 5-25).
YES
If all previous
tests were
completed with a
satifactory result,
replace digital
control box (para
4-414.8
Change 1
22
