Quantcast TSUM - 3-014 Carriage Empty Drive Failure (Drive In) (89) Part 1

 

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TSUM - 3-013 Bridge Lift (77) Part 2
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TM-5-5420-279-23 Dry Support Bridge (DSB) (NSN
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TSUM - 3-014 Carriage Empty Drive Failure (Drive In) (89) Part 2
TM 5-5420-279-23
TSUM - 3-014 Carriage Empty Drive Failure (Drive In) (89) Part 1
Empty Far Bank Carriage will
not drive in
W ARNING
For the Empty Far Bank Carriage to drive in 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 MUST
*
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 MANUALLY OPERATED AND
*
Slide Frame extended
THE CHEST PACK RIGHT-HAND JOYSTICK IS
*
Relax Pins withdrawn & Limit Switches closed
MOVED FROM THE CENTRAL POSITION
*
Chest Pack in Carriage Drive Carriage Empty mode
CAUSING ACTIVATION OF OTHER SOLENOID
*
RH Joystick moved backward from centre
VALVES.
Are the
Power down & replace
following Mimic
Perform
defective Mim ic Panel.
Panel captions lit? - PV1a,
lam p test on
No
No
To replace Electrical
SV5, SV6, SV7,SV8, SV10
Mimic Panel.
Enclosure see
(see W ARNING),
Are all lam ps
maintenance
SV13a, SV14a &
lit?
procedure 5-049
SV15a
Yes
Yes
Are the
following solenoid
Disconnect
Insert probes of
connector LEDs lit?-
No
connectors from listed
DMM into sockets
SV5, SV6, SV7, SV8, SV10
solenoids. See m aint
1 & 2 of each
(see W ARNING),
procedure 5-142
connector
SV13a,SV14a &
NOTE
SV15a
Solenoids SV5, SV6, SV7,
SV8 & SV10 are located on
Yes
the Launch Fram e Pilot
Manifold. Solenoids SV13a,
SV14a & SV15a are located
Disconnect solenoid
on the Launch Frame W inch
connectors from above
Replace solenoid
Control Manifold
Is 24V
listed solenoids. Connect
harness if connector
Yes
solenoid supply
DMM across solenoid coil
LED not lit. See
present?
pins. See resistance
maintenance
check in maint procedure
procedure 5-139
5-142
No
Power down and check
continuity from solenoid to
Replace faulty harness or
control source.
control box as appropriate.
See wiring diagram
For Electrical Enclosure see
Go to
G406-8604 sheet 7 at
maint procedure 5-049 & for
Part 2
harnesses see maint
and cable routing tables in
procedure 5-139
Section 3.6 of Chapter 3 for
the appropriate solenoids

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