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CFO1301002_008
C
C
D
D
AUXILLARY ACCUMULATOR SERVICING
HYDRAULICS
May 06/2005 Flight Crew Operating Manual Volume 2
REV 2 CSP 100-6 13-01-11
AUXILIARY HYDRAULIC SYSTEM SCHEMATIC
CFO1301002_014
BRV
R
P
S
AUX
RESERVOIR
AUX PUMP
LEVEROPERATED
BLEED/RELIEF
VALVE
ECOLOGY
BOTTLE
150 CU IN
(2458.06 CU CM)
OVERBOARD
DRAIN/VENT
15-MICRON
PRESSURE
FILTER ELEMENT
ACCUMULATOR
AND
ACCUMULATOR
CHARGE MANIFOLD
DRAIN
HOLE
AUX DCMP
PRESSURE
SWITCH C
AUX
ACCUMULATOR
PRESSURE
SWITCH B
PRESSURE
TRANSDUCER
INTENSIFIER
AUXILIARY FILL
QUICK-DISCONNECT
TEMPERATURE
TRANSDUCER
DRV
LOWER RUDDER
PRESSURE
SWITCH A
LOWER RUDDER PCU
P
R TO RIGHT HYDRAULIC
SYSTEM PUMPS
FROM RIGHT HYDRAULIC
SYSTEM PUMPS
OPERATED
DUMP/RELIEF
VALVE
PUSHBUTTONSUPPLY
PRESSURE (P)
SUCTION PRESSURE (S)
RETURN PRESSURE (R)
ECOLOGY
LEGEND
P
HYDRAULICS
Volume 2 Flight Crew Operating Manual May 06/2005
13-01-12 CSP 100-6 REV 2
CONTROLS AND INDICATIONS
DESCRIPTION
The hydraulic control panel is located immediately to the right of the throttle quadrant on the center pedestal. From the
hydraulic control panel the electric hydraulic pumps, shutoff and selector valves, and power transfer unit can be manually
operated. The Engine Indicating and Crew Alerting System (EICAS) monitors and displays the hydraulic system information.
HYDRAULIC CONTROL PANEL
CFO1301002_006
L SOV R SOV
L PUMP R PUMP
PTU
OFF
AUTO
ON
AUTO
AUTO
OFF
AUTO
ALTN
FLAPS
AUX
PUMP
CLOSED CLOSED
ON
HYDRAULIC
OFF ON
OFF ON
HYDRAULICS
May 06/2005 Flight Crew Operating Manual Volume 2
REV 2 CSP 100-6 13-01-13
CONTROLS AND INDICATIONS (Cont)
HYDRAULIC SYNOPTIC PAGE
The hydraulic system operation is monitored and status displayed on the hydraulic synoptic page.
CFO0305002_014
CAS
CKLST SKIP
FRMT TFC TR/WX ENTER SUMRY
A/ICE FLT FUEL
L R
ECS
600 600
93.0 61.0
NI
ITT
N2
OIL PRESS
OIL TEMP
FF PPH
84.7
46
115
7300
84.7
46
115
7300
APU RPM
APU EGT 250
FUEL QTY LBS
TOTAL 12000
6000 6000
STAB AIL
LWD RWD
RUD
NU
ND
6.6
GEAR
CAB ALT
CAB RATE
7300
1000
TX
DN
85.0 MCT 85.0 MCT TRIM
COM1 NAV1 ATC1/TCAS ADF1 HF1 COM3 COM2
118.000 108.00 1799.5 118.000 118.000
118.000 108.00 STBY 190.0 2.0000 118.000 118.000
ABV
2.0000 AM
25 25
HYDRAULIC
HYD
1200
-35 ° C
40 ° C -40 ° C
65 % 70 %
75 %
PTU
P P P
P P
3000
PSI
PRESS
2950
PSI
RUDDER
GEAR
NORM
OUTBD
RUDDER
BRAKES
ELEVATOR
OUTBD FLT SPLRS
OUTBD GND SPLRS
NORM FLAPS
GEAR DOWN ASSIST
PTU
R REVERSER
RUDDER
ELEVATOR
INBD FLT SPLRS
INBD GND SPLRS
ALTN FLAPS
GEAR
NOSE WHEEL STEER
L REVERSER
MFD
PRESS
NORM
INBD
BRAKES
CONTROL
PK/EMER
BRAKE
PSI
2900
ELEC
AUX
SPOILERS
AUTO PLAN
SHLDR SIDE
100
FLAPS 0
DN DN
L R
HYDRAULICS
Volume 2 Flight Crew Operating Manual May 06/2005
13-01-14 CSP 100-6 REV 2
EICAS MESSAGES
The hydraulic system messages are shown on the EICAS. In the table below, the hydraulic system messages and inhibits
are listed. A brief explanation of each message is provided.
MESSAGE INHIBITS MEANING
AURAL
WARNING
HYD PRESS LOW The left and right hydraulic pressures are less
than 1800 psi
AUX HYD TEMP HIGH TO/LAND
The auxiliary hydraulic fluid system temperature
is greater than 135 °C
L (R) HYD PRESS LOW TO/LAND
The affected hydraulic system pressure is less
than 1800 psi
HYD PTU FAIL TO/LAND
The power transfer unit is not producing pressure
when it should be
L (R) HYD SOV FAIL TO/LAND
The respective hydraulic shutoff valve did not
close when one of the following occurred:
- The respective ENG FIRE switch was pressed
- The respective HYDRAULIC SOV switch was
selected CLOSED
- The automatic overtemp closure was commanded
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