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TM 5-5420-279-23
TSUM - 4-002 Crane Does Not Rotate (Part 2)
Crane does not
rotate (Part 2)
All Maintainer Tasks
Is
Replace rotae
Carry out electrical
the gauge reading a
m otor load holding
check on valve control
working pressure of 4496
Yes
valve see
block solenoid dum p
No
psi (31000 kPa) when
m aintenance
valve see m aintenance
the rotate controls are
procedure 6-085
procedure 6-075
operated
Is
Is
End of trouble
fault
fault
Yes
Yes
shooting
rectified
rectified
No
No
Replace rotate m otor
Replace crane valve
and brake assem bly see
control block see
m aintenance procedure
m aintenance procedure
6-048
6-073
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