Quantcast TSUM - 3-018 Carriage Drive Failure (High Bank Drive In) Part 1

 

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TSUM - 3-017 Carriage Drive Failure (Level Bank Drive In) Part 2
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TM-5-5420-279-23 Dry Support Bridge (DSB) (NSN
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TSUM - 3-018 Carriage Drive Failure (High Bank Drive In) Part 2
TM 5-5420-279-23
TSUM - 3-018 Carriage Drive Failure (High Bank Drive In) Part 1
Carriage will not drive in
(High Bank)
W ARNING
For the Carriage to drive in (High Bank) the following
prerequisite conditions m ust be m et:
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 M ADE SAFE EITHER BY COM PLETING 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-Fram e unfolded
CRUSH INJURY. A SUSPENDED BRIDGE W ILL
* A-Fram e rotated
M OVE IF SV10 IS MANUALLY 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* Relax Pins withdrawn & Lim it Switches closed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 High Bank mode
CAUSING ACTIVATION OF OTHER SOLENOID
* RH Joystick moved backward from centre
VALVES.
Are the
Power down &
Perform
following Mimic
replace defective
lam p test on
Panel captions lit?-PV1b,
Mimic Panel.
No
No
Mim ic Panel.
SV5, SV6, SV8, SV10 (see
To replace Electrical
Are all lam ps
W ARNING), SV13b,
Enclosure see
lit?
SV14b &
m aintenance
SV15b
procedure 5-049
Yes
Yes
Are
the following
Disconnect connectors
Insert probes of DMM
solenoid connector LEDs
No
from listed solenoids.
into sockets 1 & 2 of
lit?- SV5, SV6, SV8, SV10
See maint procedure
each connector
(see W ARNING), SV13b,
5-141
SV14b &
NOTE
SV15b
Solenoids SV5, SV6, SV8 &
SV10 are located on the
Yes
Launch Frame Pilot
Manifold. Solenoids SV13b,
SV14b & SV15b are located
Disconnect solenoid
on the Launch Frame W inch
Replace solenoid
connectors from above listed
Control Manifold
Is 24V
harness if connector
solenoids. See m aint
Yes
solenoid supply
LED not lit. See
procedure 5-141. Connect
present?
m aintenance
DMM across solenoid coil
procedure 5-139
pins. See resistance check in
m aint procedure 5-124
No
Replace faulty harness
Power down & check
or Launch Frame Enclosure as
harness continuity from
appropriate using the following
listed solenoids to
Go to
maintenance procedures:-
Launch Frame
Part 2
Harness 5-139
Enclosure using the
Launch Fram e Enclosure
cable routing tables in
5-049
section 3.6 of Chapter 3

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