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Page Title:
TSUM - 3-006 Stow Cylinder (38) Part 1 |
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 TM 5-5420-279-23
Stow Cylinders
will not retract
For the Articulator Stow Cylinders to retract the
following prerequisite conditions m ust be m et:
*
Neutral gear selected
*
Parking brake applied
*
Tail Lift Pendant connected & powered
*
Chest Pack connected & powered
*
4 Position Switch at position 4
*
Ensure E-STOP RESET satisfactory
*
A-Fram e unfolded
*
A-Fram e rotated
*
Slide Fram e extended
*
Relax Pins withdrawn & Lim it Switches closed
*
Chest Pack in Stow Artic m ode
*
Articulator Cylinder shoot bolts retracted
*
LH Joystick m oved forward from centre
Power down & replace
Perform
defective Electrical
Is the
No
No
lam p test on
Enclosure. To replace
SV17b lam p lit on the
Mim ic Panel. Are all
Electrical Enclosure see
Mim ic Panel?
lam ps lit?
m aintenance procedure
5-049
Yes
Yes
Is solenoid
Disconnect connector
Insert probes of DMM
No
SV17b connector LED lit
from solenoid SV17b.
into sockets 1 & 2 of
on the Pinch Roll / Stow
See m aint procedure
connector
Cylinder Manifold?
5-141
Yes
Disconnect connector
from solenoid SV17b.
See m aint procedure 5-120
Replace solenoid
Connect DMM across
Is 24V
harness if connector
Yes
solenoid coil pins.
solenoid supply
LED not lit. See
See resistance check in
present?
m aintenance procedure
m aint procedure 5-124
5-139
No
Replace faulty harness,
Power down & check
Launch Fram e Enclosure or
harness continuity from
junction box as appropriate using the
Go to
solenoid SV17b to Launch
following m aintenance procedures:-
Part 2
Fram e Enclosure using the
Harness 5-139
cable routing tables in
Launch Fram e Enclosure 5-049
section 3.6 of Chapter 3
A-Fram e Junction Box 6-008
Slide Fram e Junct. Box 5-089
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