TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
11. HOOK ARM DOES NOT LOAD IN MANUAL MODE (MODEL A ONLY) (continued).
6.
KNOWN INFO
TEST OPTIONS
Is continuity measured
Does not operate with
Continuity Test.
on the hook arm load
remote control or cab
REASON FOR QUESTION
solenoid harness?
controls.
Power to activate the
POSSIBLE PROBLEMS
hook arm load solenoid is
transferred from the main
Hook arm load solenoid
junction box to the
harness faulty.
solenoid via this harness.
Main junction box wiring
Faults in this harness will
faulty.
prevent operation from
Linking harness faulty.
both the cab and remote
Directional control valve
controls.
faulty.
Replace hook arm
load solenoid
NO
harness (para
YES
4-204
Change 1
