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Page Title:
TSUM - 3-004 Articulator (Extend & Retract) (31 / 94) Part 1 |
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 TM 5-5420-279-23
Beam Angle will not adjust -
Articulator Cylinders will not
extend / retract
For the Beam Angle to adjust the following prerequisite
conditions m ust be met:
* Neutral gear selected
* Parking brake applied
* Tail Lift Pendant connected & powered
* Chest Pack connected & 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* Relax Pins withdrawn & Lim it Switches closed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 Beam Angle m ode
* RH Joystick m oved rearwards from centre (extend cylinders)
or m oved forward from centre (retract cylinders)
Are
Perform
Power down &
solenoids
lam p test on
replace defective
No
No
PV1a or b & SV2 LEDs
Mim ic Panel.
Mim ic Panel.
NOTE
lit on Mimic
Are all lam ps
See m aintenance
The LEDs for solenoids
Panel?
lit?
procedure 5-049
PV1a & b on the Mimic
Panel will glow with varying
Yes
Yes
intensity, dependent on the
displacement of the Chest
Pack RH joystick
Is
Disconnect connector
LED lit on
from solenoid SV2.
Disconnect
valve connector
See maint procedure
connector from
No
Yes
SV2 on the Launch
5-141 Connect DMM
solenoid SV2.
Fram e Articulator &
across solenoid coil
See maint
Synchronisation
pins. See resistance
procedure 5-141
Manifold?
check in m aint
procedure 5-124
Insert probes of
Replace
DMM into sockets
Is
defective solenoid
No
1 & 2 of connector
solenoid SV2 coil
SV2. See
resistance between
m aintenance
15-23Ω ?
procedure 5-124
Replace solenoid
harness if
Is 24V
Yes
Yes
connector LED not
solenoid supply
lit. See
Manually operate
present?
m aintenance
SV2 and move
procedure 5-139
joystick forward to
No
Raise Beam
(retract Articulator
Cylinders)
Replace faulty harness,
Launch Fram e Enclosure or
Power down & check
Junction Box as appropriate
harness continuity from
Does
using the following
solenoid SV2 to Launch
Hydraulic fault on valve
Yes
Beam Raise -
m aintenance procedures:-
Frame Enclosure using
SV2. See chapter 2 hydraulic
Articulator Cylinders
Harness 5-139
the cable routing tables
trouble shooting procedure 2-007
retract?
Launch Fram e Enclosure 5-049
in section 3.6 of
A-Fram e Junction Box 6-008
Chapter 3
Slide Frame Junct. Box 5-089
No
Go to
Part 2
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