TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
11. HOOK ARM DOES NOT LOAD IN MANUAL MODE (MODEL A ONLY) (continued).
5.
KNOWN INFO
TEST OPTIONS
Is there continuity
Cab controls OK.
Continuity Test.
measured between the
Remote control unit OK.
REASON FOR QUESTION
remote linking harness
Remote control cable
connector (J8A or J8B)
OK.
Signal power is transferred
and the main control
from the remote control
POSSIBLE PROBLEMS
box terminal strip, on
cable to the main junction
the side that does not
box via the remote linking
Remote linking harness
operate?
harnesses (one for each
faulty.
side). If this linking
harness is defective, the
remote control unit will
work on one side of the
vehicle but not the other.
Replace remote
linking harness
NO
(para 4-80 or
Fault not corrected.
YES
Notify supervisor.
4-202
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