TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
16.1 MAIN FRAME, HOOK ARM, AND WINCH DO NOT OPERATE (MODEL B ONLY)
(continued).
KNOWN INFO
2.
TEST OPTIONS
Error Code, EC 01, EC
Are all hydraulic lines,
Visual inspection.
08 and/or EC 19.
hoses, and fittings for
Quick-disconnect
the CBT free from leaks
REASON FOR QUESTION
couplings installed
or damage?
properly.
Leaks or damage in the
CBT hydraulic system
POSSIBLE PROBLEMS
may cause insufficient oil
supply to reach the
Hydraulic lines, hoses, or
hydraulic components.
fittings faulty.
Cab digital control box
faulty.
Cab interface wiring
harness faulty.
Digital controller wiring
Notify Direct
harness faulty.
Support
NO
Free flow valve faulty.
maintenance.
digital control box faulty.
YES
4-386.4
8
Change 1
