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Page Title:
HOOK ARM DOES NOT UNLOAD. (Cont) |
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 TM 9-2320-364-34-1
4. HOOK ARM DOES NOT UNLOAD (CONT).
5.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Does hook
Unit Troubleshooting tasks
Operation test.
on Page 2-295
completed.
arm unload
Hook arm loads.
REASON FOR QUESTION
with harness
DC valve OK.
connector disconnected from
If load control valve on port VA
safe lowering solenoid valve
side of LH or RH hook arm
POSSIBLE PROBLEMS
on port VA side of RH hook
manifold is faulty, fluid cannot
exit cylinder while unloading.
arm manifold and safe
Load control valve faulty.
Safe lowering solenoid valves on
lowering button pushed in?
port VA side of LH and RH hook
arm manifolds only bypass load
control valves on port VA side.
Repair RH hook
arm manifold
(Para 17-13).
NO
Verify repair,
go to Step 8
of this Fault.
YES
Repair LH hook
arm manifold
(Para 17-13).
Verify repair, go to
Step 8 of this Fault.
2-294
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