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Page Title:
TSUM - 4-003 Lift Cylinder Does Not Extend (Part 1) |
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 TM 5-5420-279-23
LIft cyl does not
extend (part 1)
Prepare for crane
operations in accordance
Is
with the operator's
No
PTO engaged
m anual
TM 5-5420-279-10
Yes
Is
Set the flow
the directional
control valve in
No
flow control valve in the correct
the correct
position for crane
position
operation
Yes
Does
End of trouble
Yes
lift cyl
shooting
extend
No
Operate
Operator tasks
em ergency
shut-off valve
Maintainer Tasks
Electrical fault.
Carry out electrical
Does
Yes
lift cyl
trouble shooting on the
crane lift cyl circuits.
extend
See TSUM 4-011
No
Carry out electrical
check on valve control
block solenoid dum p
valve see m aintenance
procedure 6-066
Go to
part 2
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