Quantcast TSUM - 3-011 Carriage Drive Failure (Low Bank Drive Out) (55) Part 1

 

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TSUM - 3-010 Carriage Drive Failure (High Bank Drive Out) (55) Part 2
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TM-5-5420-279-23 Dry Support Bridge (DSB) (NSN
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TSUM - 3-011 Carriage Drive Failure (Low Bank Drive Out) (55) Part 2
TM 5-5420-279-23
TSUM - 3-011 Carriage Drive Failure (Low Bank Drive Out) (55) Part 1
Carriage will not drive out
(Low Bank)
W ARNING
For the Carriage to drive out (Low Bank) 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 MODE 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
M OVE IF SV10 IS M ANUALLY OPERATED AND
* Slide Fram e extended
THE CHEST PACK RIGHT-HAND JOYSTICK IS
* Relax Pins withdrawn & Lim it Switches closed
M OVED FROM THE CENTRAL POSITION
* Chest Pack in Carriage Drive Low Bank mode
CAUSING ACTIVATION OF OTHER SOLENOID
* RH Joystick moved forward from centre
VALVES.
Are the
Power down & replace
following Mimic
defective Mimic Panel.
Perform
No
Panel captions lit?- PV1b,
To replace Electrical
lam p test on
No
SV5, SV6, SV7, SV10 (see
Enclosure see
Mim ic Panel.
W ARNING), SV13a,
m aintenance
Are all lam ps
SV14a &
procedure
lit?
SV15b
5-049
Yes
Yes
Are
the following
Disconnect connectors
solenoid connector LEDs
Insert probes of DMM
No
from listed solenoids.
lit?- SV5, SV6, SV7, SV10
into sockets 1 & 2 of
See m aint procedure
(see W ARNING), SV13a,
each connector
5-141
SV14a &
NOTE
SV15b
Solenoids SV5, SV6, SV7 &
SV10 are located on the
Yes
Launch Frame Pilot
Manifold. Solenoids SV13a,
SV14a & SV15b are located
Disconnect solenoid
on the Launch Frame W inch
connectors from above
Control Manifold
listed solenoids. See
Replace solenoid harness
Is 24V
Yes
m aint procedure 5-141.
if connector LED not lit.
solenoid supply
Connect DMM across
See maintenance
present?
solenoid coil pins.See
procedure 5-139
resistance check in m aint
procedure 5-124
No
Replace faulty harness or
Power down & check
Launch Frame Enclosure as
harness continuity from
appropriate using the following
listed solenoids to
Go to
m aintenance procedures:-
Launch Fram e Enclosure
Part 2
Harness 5-139
using the cable routing
Launch Frame Enclosure
tables in section 3.6 of
5-049
Chapter 3

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