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 TM 9-2320-364-34-1
17. BOOM CREEPS DOWN (CONT).
3.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Unit Troubleshooting
Flowmeter test.
Are
on Page 2-635
tasks completed.
0 gpm
Hoist operates.
REASON FOR QUESTION
(0 lpm)
Holding valves in both
measured at four valve bank
lift cylinder assemblies are OK.
If piston seals are faulty in
with boom cylinder on cab
cylinder that is active (not
side of boom isolated from
isolated from circuit), more than
POSSIBLE PROBLEMS
0 gpm (0 lpm) will be measured.
(disconnected) other boom
If piston seals are faulty in cylin-
Lift cylinder piston seals
cylinder?
der that is isolated from
faulty.
(disconnected) circuit, 0 gpm
(0 lpm) will be measured.
Replace lift cylinder
on LHS side of boom
(Para 16-6).
NO
Verify repair, go to
Step 6 of this Fault.
YES
Replace lift cylinder
on cab side of boom
(Para 16-6).
Verify repair, go to
Step 6 of this Fault.
2-634
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