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The HYDRAULIC synoptic page provides an overview of normal system status, and
RAT deployment as represented below.
Hydraulic reservoirs, valve positioning, and pump operations are pictorially displayed.
System temperatures, fluid quantities and pressures are represented digitally. Flow
lines connect components and legends display system status.
HYDRAULIC SYNOPTIC PAGE
The synoptic page is displayed in detail later in this chapter.
HYDRAULIC CONTROL PANEL
The hydraulic control panel is located on the overhead panel in the flight
compartment. There are four switches which control electrically operated pumps for
each system. The function of each switch is described later in this chapter.
RAT
INBD
BRAKES
PSI
3000
3A 3B
3000
PSI
54%
RUD
L ELEV
L AIL
FLT SPLRS
GND SPLRS
L REVERSER
RUD
ELEV R
AIL R
FLT SPLRS
GEAR
REVERSER R
RUD
L ELEV R
L AIL R
GND SPLRS
GEAR
NOSE STEER
PARK/EMER BRAKE
INBD
BRAKES
PSI
3000
OUTBD
BRAKES
NORM
3A 3B 2B
HYDRAULIC
3000
PSI
3000
PSI
2A
3000
PSI
45 °C
1B
60%
45 °C
54%
45 °C
60%
1A
GX_12_004
Reservoir
AC Motor
Pump
Status
Engine-
Driven
Pump
Status
Hydraulic
Fluid
Temperature
Readout
Hydraulic
Fluid
Quantity
Readout
Firewall
Shutoff
Valve
Position
Hydraulic
Pressure
Readout
RAT
Deployed
HYDRAULIC
SYSTEM NO. 3
HYDRAULIC
1B 3A 3B 2B
OFF
AUTO
OFF
ON ON ON
OFF
AUTO
OFF
AUTO
O
AU
O
AU
O
ON
O
AU
GX_12_005
P I LOT T R A I N I N G GU I D E
HYDRAULICS
12-6 For Training Purposes Only
Sept 04
HYDRAULIC SYNOPTIC PAGE (Cont)
RUD
L ELEV
L AIL
FLT SPLRS
GND SPLRS
L REVERSER
RUD
ELEV R
AIL R
FLT SPLRS
GEAR
REVERSER R
RUD
L ELEV R
L AIL R
GND SPLRS
GEAR
NOSE STEER
PARK/EMER BRAKE
INBD
BRAKES
PSI
3000
OUTBD
BRAKES
NORM
3A 3B 2B
HYDRAULIC
3000
PSI
3000
PSI
2A
3000
PSI
45 °C
1B
60%
45 °C
54%
45 °C
60%
1A
GX_12_006
3A RAT 3B
81%
3000
PSI
Hydraulic RAT Pump
Displays RAT pump
deployed and powering
system No. 3. The pump
symbol and flow lines
only appear when the
RAT is deployed.
Hydraulic Pumps 1A,
2A, 1B, 2B, 3A, 3B and
RAT
Green
Amber
White
Displays the condition of
each of the hydraulic
pumps.
• – Pressure >1800 psi.
• – Hydraulic supply
to system inoperative 1800 psi.
• – Hydraulic pump is
not commanded to operate.
<
RAT
INBD
BRAKES
PSI
3000
3A 3B
3000
PSI
54%
HYDRAULIC SYSTEM #3
For Training Purposes Only
Sept 04
12-7
P I LOT T R A I N I N G GU I D E
HYDRAULICS
HYDRAULIC SYNOPTIC PAGE (Cont)
RUD
L ELEV
L AIL
FLT SPLRS
GND SPLRS
L REVERSER
RUD
ELEV R
AIL R
FLT SPLRS
GEAR
REVERSER R
RUD
L ELEV R
L AIL R
GND SPLRS
GEAR
NOSE STEER
PARK/EMER BRAKE
INBD
BRAKES
PSI
3000
OUTBD
BRAKES
NORM
3A 3B 2B
HYDRAULIC
3000
PSI
3000
PSI
2A
3000
PSI
45 °C
1B
60%
45 °C
54%
45 °C
60%
1A
GX_12_007
Engine-Driven Pump
Input Line
• Green – SOV open.
• Amber – SOV failed.
• Red – SOV not closed
with the fire handle
pulled.
Pressure Manifold
Output Line
• Green – Pressure
> 1800 psi.
• Amber < 1800 psi.
Reservoir Output Lines
(all three systems)
Flow line is green when
sufficient reservoir quantity
is displayed.
Pump Output Line
• Green – Pressure
>1800 psi.
• Amber – Low
pressure < 1800 psi.
Pressure manifold
Input Line
• Green – Pressure
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