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Page Title:
TSUM - 3-007 A-Frame Raise (39) Part 2 |
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 TM 5-5420-279-23
TSUM - 3-007 A-Frame Raise (39) Part 2
Part 2
Replace
Is
defective solenoid.
No
solenoid SV3
See maintenence
resistance between
procedure
15-23Ω ?
5-124
Yes
Manually operate SV3
and move joystick
forward to raise
A-Frame
Hydraulic fault on valve
NOTE
Does
Yes
SV3. See chapter 2 hydraulic
The LED for valve PV1b on
A-Frame
trouble shooting procedure
the Mimic Panel will glow
raise?
2-011
with varying intensity,
dependent on the
displacement of the Chest
No
Pack RH joystick
Power down & check harness
continuity from solenoid PV1b
Disconnect connector
on the Launch Frame W inch
from solenoid PV1b.
Is PV1b
Control Manifold to Launch
See maint procedure
LED Lit on
Yes
No
Frame Enclosure using the
5-141. Connect DMM
Mimic Panel when RH
cable routing tables in section
across solenoid coil
Joystick moved
3.6 of Chapter 3. Replace
pins. See resistance
forward?
faulty harness as appropriate.
check in maint
See maintenance procedure
procedure 5-124
5-139
Replace
Is
defective solenoid.
No
solenoid PV1b
See maintenance
resistance between
procedure
3-8Ω ?
5-124
Yes
NOTE
Manually operate
The backup mode
backup mode motion
motion valve is located
valve to raise A-Frame
on the A-Frame RH
Stabiliser Leg. Refer to
-10 Chapter 7 of
Operator Manual
Hydraulic fault on valve
Does
Mechanical fault, refer to
Yes
No
PV1. See chapter 2 hydraulic
A-Frame
-10. Chapter 9 of operator's
trouble shooting procedure
raise?
manual.
2-011
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