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 TM 9-2320-364-34-1
20. HOIST DOES NOT RAISE (CONT).
3.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Unit Troubleshooting
Operation test.
on Page 2-665
tasks completed.
Hoist lowers.
REASON FOR QUESTION
Four valve bank OK.
Does hoist motor operate
If hoist brake is faulty, hoist
when mechanically
POSSIBLE PROBLEMS
motor will operate when hoist
disconnected from hoist
motor shaft is disengaged from
assembly and HOIST control
hoist assembly.
Hoist brake faulty.
If hoist motor valve load control
Hoist motor valve faulty.
lever is in UP position?
valve is faulty, hoist motor will
not operate when motor shaft is
disengaged from hoist assembly.
Repair hoist motor
valve (Para 16-13).
NO
Verify repair, go to
Step 7 of this Fault.
YES
Notify supervisor.
2-664
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