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Page Title:
TSUM - 4-006 Jib Cylinder Does Not Extend (Part 2) |
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 TM 5-5420-279-23
TSUM - 4-006 Jib Cylinder Does Not Extend (Part 2)
Jib cyl does not
extend (part 2)
All Maintainer Tasks
Does
End of trouble
jib cyl
Yes
shooting
extend
No
Connect a hydraulic pressure
gauge to the pressure gauge
test point at the crane valve
control block
Is
the gauge reading
Replace jib cyl (extend)
working pressure of 4496 psi
load holding valve.
Yes
(31000 kPa) when the jib cyl
See m aintenance procedure
controls are
6-079
operated
No
Replace
crane valve control block.
See m aintenance procedure
6-073
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