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Page Title:
BOOM DOES NOT LOWER OR LOWERS SLOWLY. (Cont) |
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 TM 9-2320-364-34-1
15. BOOM DOES NOT LOWER OR LOWERS SLOWLY (CONT).
3.
TEST OPTIONS
KNOWN INFO
Operation test.
Unit Troubleshooting
Does boom lift cylinder on
tasks completed.
Load Handling System (LHS)
Boom raises.
REASON FOR QUESTION
side of crane operate with rod
Four valve bank OK.
Faulty cylinder will not operate or
end disconnected from
will operate slowly when
POSSIBLE PROBLEMS
boom?
compared to functioning cylinder
when disconnected from boom.
Lift cylinder faulty.
Replace boom lift
cylinder on LHS side
of boom
NO
(Para 16-6).
Verify repair, go to
Step 5 of this Fault.
YES
Replace boom lift
cylinder on cab side
of boom (Para 16-6).
Verify repair, go to
Step 5 of this Fault.
2-608
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