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TM 9-2320-364-20-3
2-2378
9. HOOK ARM DOES NOT UNLOAD IN MANUAL MODE (CONT).
LHS hoses OK.
LHS tubes OK.
Wire 1489 OK.
Wire 1482 OK.
Hydraulic selector switch OK.
LHS control assembly OK.
Wire 1464 OK.
Wire 1435 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
If wire 1435 is loose or faulty,
hook arm up DC valve will not
be grounded.
Repair wire 1435
(see schematic
Fig 2-52) or notify
DS Maintenance.
Verify repair, go to
Step 10 of this Fault.
9.
Is continuity measured on
wire 1435 at hook arm up DC
valve harness connector,
terminal 1 and chassis
ground?
Hook arm up
directional control
(DC) valve is faulty.
Notify DS
Maintenance.
WARNING
Continuity test.
STE/ICE-R #91.
NO
YES
Read WARNING
on Page 2-2379
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