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Page Title:
TSUM - 2-011 A-Frame Raise / Lower (39 / 91) Part 1 |
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 TM 5-5420-279-23
Fit pressure
A-Fram e Raise/
Maintainer Tasks
gauge to TPA3 on
Lower function does
Launch Fram e
not operate
Articulator
Manifold
Having reached this stage of the build
we have proven the operation of the
Operate joystick to
Proportional Solenoid Valve PV
A-Fram e Lower
on Launching Fram e W inch Control
Manifold
Conduct electrical checks on
Replace SV3 valve
Does
solenoid SV3 on Launch Fram e
No
assem bly.
gauge read 1450 psi
Articulator Manifold.
See m aintenance
(10000 kPa)
See electrical trouble shooting
procedure 5-122
chapter 3 procedure 3-007
Yes
Ensure MIMIC panel indication
Refit pressure
and LED illum ination agree with
gauge to TPB3 on
energisation chart - see
Launch Fram e
Articulator
Manifold
Does
Operate RH
A-Fram e Raise/
Fault cleared
Yes
joystick forward to
Lower function
raise A-Fram e
work
No
Manually operate SV3 on the
See m aintenance
No
Does
Launch Fram e Articulator
procedure 5-131, item
gauge read 2465 psi
Manifold and m ove joystick
5. Replace
(17000 kPa)
forward to raise A-Fram e
relief valve
Yes
Replace both
Replace
Does
Does
A-Fram e raise
No
Solenoid SV3. See
Yes
A-Fram e Raise
A-Fram e raise
cylinders. See
m aintenance
function work
correctly
m aintenance
procedure 5-124
procedure 5-015
Yes
No
Fit pressure gauge to TPB3
Fault cleared
on Launch Fram e Articulator
Manifold
Does
No
Go to Part 2
Yes
Gauge read 2465 psi
(17000 kPa)
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