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 TM 9-2320-364-34-1
19. HOIST DOES NOT LOWER (CONT).
4.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Visual inspection.
Unit Troubleshooting
on Page 2-657
tasks completed.
Hoist raises.
REASON FOR QUESTION
Four valve bank OK.
Is hoist motor valve orifice
If orifice is clogged, supply
free of contaminants clogging
pressure to hoist motor valve will
POSSIBLE PROBLEMS
not be supplied to load control
it?
valve. If orifice is OK, load
Hoist motor valve faulty.
control valve in hoist motor valve
is faulty.
Clean or replace
orifice (Para 16-13).
NO
Verify repair, go to
Step 5 of this Fault.
YES
Repair hoist motor
valve (Para 16-13).
Verify repair, go to
Step 5
of this Fault.
2-656
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