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TM 9-2320-364-20-3
2-2368
9. HOOK ARM DOES NOT UNLOAD IN MANUAL MODE (CONT).
4.
Repair wire 1489
(see schematic
Fig 2-52) or notify
DS Maintenance.
Verify repair, go to
Step 10 of this Fault.
YES
NO
LHS hoses OK.
LHS tubes OK.
Wire 1489 faulty.
Wire 1482 faulty.
Hydraulic selector switch
faulty.
LHS control assembly faulty.
Wire 1464 faulty.
Wire 1435 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If wire 1489 is loose, faulty, or
shorted to ground, 22 to 28 vdc
will not be present at hydraulic
selector switch from LHS control
assembly.
WARNING
Is continuity measured on
wire 1489 at harness
connector MC83 terminal N
and harness connector MC94,
terminal E?
Read WARNING
on Page 2-2369
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