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TM 5-5420-279-23
TSUM - 4-003 Lift Cylinder Does Not Extend (Part 2)
Lift cyl does not
extend (part 2)
All Maintainer Tasks
Does
End of trouble
Yes
lift cyl
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 lift cyl load
working pressure of 4496 psi
holding valve see
Yes
(31000 kPa) when the lift cyl
m aintenance procedure
controls are operated
6-081
No
Replace crane valve control
block see m aintenance
procedure 6-073
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