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 TM 9-2320-364-34-1
3. HOOK ARM DOES NOT LOAD (CONT).
4.
TEST OPTIONS
KNOWN INFO
Unit Troubleshooting tasks
Operation test.
Does hook arm load with
completed.
harness connector
Hook arm unloads.
REASON FOR QUESTION
DC valve OK.
disconnected from safe
LH and RH hook arm cylinders
lowering solenoid valve on
Safe lowering solenoid valves at
OK.
port VB of LH and RH hook arm
port VB side of RH hook arm
manifolds only bypass load
manifold and safe lowering
POSSIBLE PROBLEMS
control valves on port VB side.
button pushed in?
Load control valve faulty.
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.
2-276
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