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Page Title:
TSUM - 3-015 Carriage Empty Drive Failure (Drive Out) Part 1 |
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 TM 5-5420-279-23
Empty Far Bank Carriage will
not drive out
W ARNING
For the Empty Far Bank Carriage to drive out the
following prerequisite conditions must be met:
CRUSH INJURY. BEFORE CARRYING OUT
*
Neutral gear selected
TROUBLESHOOTING INVOLVING SV10, A
*
Parking brake applied
SUSPENDED OR PART BUILT BRIDGE M UST
*
Tail Lift Pendant connected & powered
BE MADE SAFE EITHER BY COMPLETING THE
*
Chest Pack connected & powered
BUILD OPERATIONS IN BACK-UP M ODE OR
*
4 Position Switch at position 4
BY RETRIEVING THE BRIDGE.
*
Ensure E-STOP RESET satisfactory
*
A-Frame unfolded
CRUSH INJURY. A SUSPENDED BRIDGE W ILL
*
A-Frame rotated
MOVE IF SV10 IS M ANUALLY OPERATED AND
*
Slide Frame extended
THE CHEST PACK RIGHT-HAND JOYSTICK IS
*
Relax Pins withdrawn & Limit Switches closed
M OVED FROM THE CENTRAL POSITION
*
Chest Pack in Carriage Drive Carriage Empty m ode
CAUSING ACTIVATION OF OTHER SOLENOID
*
RH Joystick moved forward from centre
VALVES.
Are the
Power down & replace
Perform
following Mimic
defective Mim ic Panel.
lamp test on
Panel captions lit? - PV1a,
No
No
To replace Electrical
Mimic Panel.
SV5, SV6, SV7,SV8, SV10
Enclosure see
Are all lamps
(see W ARNING),
maintenance
lit?
SV13b, SV14b &
procedure 5-049
SV15a
Yes
Yes
Are the
following solenoid
Disconnect connectors
connector LEDs lit?-
Insert probes of DMM
No
from listed solenoids.
SV5, SV6, SV7, SV8, SV10
into sockets 1 & 2 of
See m aint procedure
(see W ARNING),
each connector
5-141
SV13b, SV14b &
NOTE
SV15a
Solenoids SV5, SV6, SV7,
SV8 & SV10 are located on
the Launch Frame Pilot
Yes
Manifold. Solenoids SV13b,
SV14b & SV15a are located
on the Launch Frame W inch
Disconnect solenoid
Control Manifold
Replace solenoid
connectors from above
harness if connector
listed solenoids. See maint
Is 24V
Yes
LED not lit. See
procedure 5-141. Connect
solenoid supply
maintenance
DMM across solenoid coil
present?
procedure 5-139
pins.See resistance check
in maint procedure 5-124
No
Replace faulty harness
Power down & check
or Launch Fram e Enclosure as
harness continuity from
appropriate using the following
listed solenoids to
Go to
m aintenance procedures:-
Launch Fram e
Part 2
Harness 5-139
Enclosure using the
Launch Frame Enclosure
cable routing tables in
5-049
section 3.6 of Chapter 3
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