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 TM 5-5420-279-23
W ith chest pack in Bridge
Lift, check if lower section
Is lower
of carriage (with bridge
Bridge will not lift
Yes
Fault cleared
section of carriage
attached) is raised when
raised
RH joystick is m oved
forward
No
W ith chest pack in Bridge Lift,
check if lower winch pays out
rope when RH joystick is
m oved backward
Ensure MIMIC Panel
indication and LED
illum ination agree with
W ith chest pack in Bridge
Does
energisation chart - see
Lift, check if lower winch
Lower W inch
Yes
No
pulls rope in when RH
pay out
Page 3 and electrical
joystick is m oved forward
rope
trouble shooting chapter
3 procedure
3-012
Go to Lower W inch
Do
Does
Function Check. See
MIMIC Panel
No
lower winch pull
hydraulic trouble shooting
indications and lit
rope in
chapter 2 procedure
LEDs
Yes
2-029
agree
Yes
Go to Lower W inch
Does
Function Check. See
lower winch
No
Fault cleared
Yes
hydraulic trouble shooting
pull rope in and
chapter 2 procedure
lift bridge
2-029
No
Electrical Fault.
Suspect lower
See electrical trouble
winch pilot displacem ent valve
shooting chapter 3
failure. For a quick fix - see
procedure 3-013
chapter 10 section 10.29 in -10
Operator Manual. To replace pilot
valve see m aintenance
procedure 5-135
Operator
Maintainer
Tasks
Tasks
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