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 TM 9-2320-364-34-1
20. HOIST DOES NOT RAISE (CONT).
6.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Unit Troubleshooting
Flowmeter test.
on Page 2-671
tasks completed.
Hoist lowers.
REASON FOR QUESTION
Is an increase in flow
POSSIBLE PROBLEMS
If hoist relief valve is faulty, flow
measured at hydraulic
will return to tank before going to
reservoir return filter when
hoist motor. If low or no flow
Four valve bank faulty.
pressure was measured from
HOIST control lever is in UP
HOIST valve, and flow is present
position?
on return hose, hoist relief valve
is faulty.
Fault not corrected.
NO
Notify supervisor.
YES
Replace hoist relief
valve in four valve
bank (Para 16-26).
Verify repair, go to
Step 7 of this Fault.
2-670
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