DESCRIPTION
General 13−10−1
System 1 and 2 13−10−1
System 3 13−10−1
Emergency Hydraulic Power 13−10−1
Hydraulic Accumulators 13−10−1
Distribution Table Schematic 13−10−2
Hydraulic System Indication 13−10−3
Hydraulic Synoptic Page 13−10−3
Hydraulic Control Panel 13−10−3
Systems Overview Schematic 13−10−4
Hydraulic System 1 and 2 13−10−5
Engine Driven Pump 13−10−5
Aft Equipment Bay Components 13−10−5
Reservoir 13−10−5
ACMotor
Pumps (ACMPs) 13−10−6
Filter manifold 13−10−6
Hydraulic Shutoff Valve Control Panel 13−10−6
Hydraulic Shutoff Valves 13−10−7
Heat Exchanger 13−10−7
System 2 Accumulator 13−10−8
Ground Service Panel 13−10−8
Hydraulic Control Panel (1B/2B Switches) 13−10−9
Hydraulic 1B and 2B Pump Switches 13−10−9
Manual Mode 13−10−9
Auto Mode 13−10−9
Ground Operation Inhibits 13−10−9
Flight Operation 13−10−10
Hydraulic System 1 Schematic 13−10−11
Hydraulic System 2 Schematic 13−10−12
Hydraulic System 3 13−10−13
Reservoir 13−10−13
ACMPs 3A and 3B 13−10−13
Ram Air Turbine (RAT) 13−10−14
Heat Exchanger 13−10−14
Filter manifold 13−10−14
Ground Service Panel 13−10−14
HYDRAULICS
TABLE OF CONTENTS
CHAPTER 13
13−00−1
Rev 3, Apr 25, 2005 Flight Crew Operating Manual
CSP 700−5000−6
Volume 2
13−00−1
Page
TABLE OF CONTENTS
DESCRIPTION
RAT and System 3 Accumulators 13−10−15
Hydraulic Control Panel (3A/3B Switches) 13−10−16
Hydraulic 3A and 3B Pump Switches 13−10−16
ACMotor
Pumps 13−10−16
Manual Mode 13−10−16
Auto Mode 13−10−17
Ground Operation Inhibits 13−10−17
Flight Operation 13−10−17
Ram Air Turbine (RAT) 13−10−17
Hydraulic System 3 Schematic 13−10−18
RAT Deployment Hydraulic Schematic 13−10−19
ACMP Power and Distribution 13−10−20
ACMPs 1B and 2B 13−10−20
ACMPs 3A and 3B 13−10−20
ACMP Electrical Power Schematic 13−10−20
External and APU Electrical Pump Operation 13−10−20
Reservoir Quantity Limits 13−10−21
Hydraulic System Distribution Schematic 13−10−22
Hydraulic Synoptic Page 13−10−23
Hydraulic Synoptic Page Symbols 13−10−26
EICAS Philosophy 13−10−26
EICAS Messages 13−10−27
EMS CIRCUIT PROTECTION
CB − Hyd System 13−20−1
HYDRAULICS
TABLE OF CONTENTS
Flight Crew Operating Manual Rev 2A, Apr 11, 2005
CSP 700−5000−6
Volume 2
13−00−2
Page
GENERAL
Hydraulic power is provided by three independent systems designated 1, 2 and 3 and operate at a
nominal pressure of 3000 psi.
System 1 and 2
Systems 1 and 2 are each powered by an Engine Driven Pump (EDP) and an ACMotor
Pump
(ACMP). The EDPs designated as 1A and 2A are mounted on the respective engine accessory
gearbox and hydraulically power systems 1 and 2 when the engines are operating.
The ACMPs designated as 1B and 2B are used as essential pumps for takeoff,
approach, landing
and in support of the EDPs in the event of failure. The ACMPs are selectable through switches
located on the HYDRAULIC control panel in the flight compartment.
During normal operations, system 1 provides hydraulic pressure to the left side primary flight
controls and rudder, left and right flight spoilers, left and right ground spoilers and the left thrust
reverser. System 2 provides hydraulic pressure to the right side primary flight controls and rudder,
left and right flight spoilers, main gear assist (left and right main landing gear extension/retraction),
right thrust reverser and outboard brakes.
System 3
System 3 is powered by two ACMPs designated as 3A and 3B and are selectable through
switches located on the HYDRAULIC control panel in the flight compartment. The ACMPs 1B and
2B provide hydraulic pressure to the primary flight controls (all), left and right ground spoilers,
landing gear and doors, inboard and park/emergency brakes and the nose wheel steering.
　
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