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 TM 9-2320-364-34-1
7. MAST DOES NOT LOWER (CONT).
2.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Unit Troubleshooting
Flowmeter test.
on Page 2-511
tasks completed.
Are 0
Mast raises.
REASON FOR QUESTION
gpm (0 lpm)
Three valve bank OK.
measured between MAST
If erection cylinder piston seals
valve and cylinder with
are faulty, flow will be measured
POSSIBLE PROBLEMS
cylinder not moving and
as it bypasses seals.
If one of the two cylinder load
MAST control lever in DOWN
Erection cylinder faulty.
control valves in is faulty, no flow
position?
will be measured.
Replace erection
cylinder (Para 16-5).
NO
Verify repair, go to
Step 3 of this Fault.
YES
Fault not corrected.
Notify supervisor.
2-510
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