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Page Title:
BOOM DOES NOT OPERATE OR OPERATES SLOWLY. (Cont) |
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 TM 9-2320-364-34-1
16. BOOM DOES NOT OPERATE OR OPERATES SLOWLY (CONT).
5.
KNOWN INFO
TEST OPTIONS
WARNING
Are
Read WARNING
Flowmeter test.
Unit Troubleshooting
on Page 2-623
0 gpm
tasks completed.
(0 lpm)
REASON FOR QUESTION
Hoist operates.
measured
Four valve bank is OK.
If piston seals are faulty in
at four valve bank with boom
cylinder that is active (not
POSSIBLE PROBLEMS
lift cylinder on cab side of
isolated from circuit), more than
boom isolated from
0 gpm (0 lpm) will be measured.
Lift cylinder faulty.
If piston seals are faulty in cylin-
(disconnected) other boom
der that is isolated from
cylinder?
(disconnected) circuit, 0 gpm
(0 lpm) will be measured.
Replace cylinder on
LHS side of boom
(Para 16-6).
NO
Verify repair, go to
Step 6 of this Fault.
YES
Replace cylinder on
cab side of boom
(Para 16-6).
Verify repair, go to
Step 6 of this Fault.
2-622
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