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Page Title:
HOIST DOES NOT OPERATE OR OPERATES SLOWLY. (Cont) |
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 TM 9-2320-364-34-1
18. HOIST DOES NOT OPERATE OR OPERATES SLOWLY (CONT).
4.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Unit Troubleshooting
Visual inspection.
on Page 2-647
tasks completed.
Boom operates.
REASON FOR QUESTION
Is orifice between HOIST
POSSIBLE PROBLEMS
If orifice in four valve bank is
valve and four valve bank
faulty, pressure and flow
Four valve bank faulty.
lift/hoist manifold free of
supplied to HOIST valve will be
restricted.
contaminants clogging it?
Clean or replace
orifice (Para 16-26).
NO
Verify repair, go to
Step 5 of this Fault.
YES
Repair HOIST valve
(Para 16-33).
Verify repair, go to
Step 5 of this Fault.
2-646
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