Quantcast TSUM - 3-008 A-Frame Lower (91) Part 1

 

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TSUM - 3-007 A-Frame Raise (39) Part 2
Up
TM-5-5420-279-23 Dry Support Bridge (DSB) (NSN
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TSUM - 3-008 A-Frame Lower (91) Part 2
TM 5-5420-279-23
TSUM - 3-008 A-Frame Lower (91) Part 1
A-Fram e
will not lower
For the A-Fram e to lower the following conditions
m ust be satisfied:-
* Neutral gear selected
* Parking brake applied
* Tail Lift Pendant connected & powered
* Chest pack connected and 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* Relax Pins withdrawn & Lim it Switches closed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 A-Fram e Raise m ode
* RH Joystick m oved backward from centre
Power down &
Are
Perform
replace defective
solenoids
lam p test on
Mim ic Panel.
No
No
PV1a & SV3 LEDs lit
Mim ic Panel.
To replace Electrical
on Mim ic
Are all lam ps
Enclosure see
Panel?
lit?
m aintenance
procedure 5-049
Yes
Yes
Is
LED lit on
Disconnect connector
valve connector
Insert probes of
No
from solenoid SV3.
SV3 on the Launch
DMM into sockets
See m aint procedure
Fram e Articulator
1 & 2 of connector
5-141
Manifold?
Yes
Disconnect connector
from solenoid SV3.
Replace solenoid
See m aint procedure
Is 24V
harness if connector
Yes
5-141. Connect DMM
solenoid supply
LED not lit. See
across solenoid coil
present?
maintenance
pins. See resistance
procedure 5-139
check in m aintenance
procedure 5-124
No
Power down & check
harness continuity from
Go to
solenoid SV3 to Launch
Part 2
Fram e Enclosure using
the cable routing tables in
section 3.6 of Chapter 3
Replace Faulty harness or
Launch Fram e Enclosure using the
following m aintenance procedures:-
Harness 5-139
Launch Fram e Enclosure 5-049

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