29-HYDRAULIC

A319/A320/A321 TECHNICAL TRAINING MANUAL MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER

This document must be used for training purpose only

Under no circumstances should this document be used as a reference.

It will not be updated.

All rights reserved. No part of this manual may be reproduced in any form, by photostat, microfilm, retrieval system, or any other means, without the prior written permission of Airbus Industrie.

A319/A320/A321 TECHNICAL TECHNICAL TRAINING MANUAL MECHANICS MECHANICS / ELECTRICS ELECTRICS & AVIONICS AVIONICS COURSE COURSE

29 HYDRAULIC POWER

29 HYDRAULIC POWER UFD4200

TABLE OF CONTENTS

Page

** System Presentation (1) ....................... 1 ** System Controls (1) ............................ 7 ** Hydraulic System Users (1) ................... 11 ** Circuit Identification and Routing (2) ...... 15 ** ECAM Page Presentation (1) ................... 25 ** Hydraulic System Warnings (3) ................ 33 ** Green Hydraulic System D/O (3) ............... 37 ** Blue Hydraulic System D/O (3) ................ 45 ** Yellow Hydraulic Syst D/O (3) ................ 53 ** Leak Measurement System Presentation (3) .... 63 ** Hyd. Reservoir Pressurizing Syst D/O (3) .... 69 ** Hyd. Reservoir Filling Presentation (2) ..... 75 ** Seal Drain System Presentation (2) .......... 79 ** Green System Components (3) .................. 87 ** Blue System Components (3) .................. 119 ** Yellow System Components (3) ................ 151 ** Hyd Reservoir PRESS Syst Components (3) .... 185 ** Power Transfer Unit Components (3) ......... 193

0 0 2 4 D F U

MAINTENANCE PRACTICES ** Reservoir Depressurization (2) ............. 201 ** Reservoir Filling (2) ....................... 205 ** RAT Stowage and Servicing (2) ............... 209 ** RAT Test (3) ................................. 215 HYD Leakage (3) ................................. 219 SPECIFIC PAGES ** CFDS Specific Page Presentation (3) ...... 221

EFFECTIVITY ALL

29 CONTENTS

Page i Dec 31/00


29 HYDRAULIC POWER

29 HYDRAULIC POWER UFD4200

TABLE OF CONTENTS

Page

THIS PAGE INTENTIONALLY LEFT BLANK

0 0 2 4 D F U

EFFECTIVITY ALL

29 CONTENTS

Page ii Dec 31/00


29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C SYST SYSTEM EM 29-00-0 29-0 0-00 0 SYS SYSTEM TEM PRES PRESENT ENTATI ATION ON CONTENTS: General Reservoirs Fire Shut-off Valves Engine Driven Pumps Electric Pumps Hand Pump Ram Air Turbine Accumulators Power Transfer Unit Self Examination

1 L E V E L

0 0 2 4 D F U

1 0 2 D Y H U M T

EFFECTIVITY EFFECTIVITY ALL

29-00-00

Page Page 1 1 Mar 31/00


29 HYDRAULIC POWER

SYSTEM PRESENTATION GENERAL

FIRE SHUT-OFF VALVES

There are three independent hydraulic hydraulic systems : Green, Blue and Yellow. In normal operation, the green and yellow hydraulic systems are powered by Engine Driven Pumps Pumps (EDPs), and the blue hydraulic system by an electric pump. Auxiliary power is provided provided by an electric pump in the yellow system. A bidirectional Power Transfer Transfer Unit (PTU) enables the green system to be powered by the yellow system or vice versa, without fluid transfer. A Ram Air Turbine (RAT) is provided in the blue system for emergency use. A hand pump is provided in the yellow system for cargo door manual operation.

On the green and yellow systems, a fire shut-off shut-off valve is positioned upstream of the engine driven pump to isolate the system. They are operated by their respective engine fire pushbutton switches to isolate the engine engine driven pump in case of engine fire.

RESERVOIRS

1 L E V E L

0 0 2 4 D F U

Each hydraulic system has its own reservoir. It supplies hydraulic fluid to the system pumps, and is pneumatically pressurized. The green reservoir is located in the main landing gear bay, the yellow reservoir in the yellow hydraulic hydraulic compartment and the blue reservoir above the blue ground service panel. All the reservoirs are filled from the green ground service panel.

ENGINE DRIVEN PUMPS The green and yellow systems are each pressurized by a pump driven respectively by engine 1 and engine 2. Engine Driven Pumps (EDPs) are located on the accessory gearbox of each engine. They are of the variable displacement type. Normal system operating pressure is 3000 psi (206 bars). ELECTRIC PUMPS The blue system is pressurized by an electric pump. An electric pump allows the yellow system to be pressurized enabling ground operations when the engines are stopped. Normal system operating pressure is 3000 psi (206 bars). HAND PUMP

1 0 T 1 0 2 D Y H U M T

The hand pump is used to operate the the cargo doors when no electrical power is available. It is located on the yellow ground service panel.


29-00-00



29 HYDRAULIC POWER

1 L E V E L

0 0 2 4 D F U

1 0 P 1 0 2 D Y H U M T

SYSTEM PRESENTATION EFFECTIVITY EFFECTIVITY ALL

29-00-00



29 HYDRAULIC POWER

RAM AIR TURBINE A Ram Air Turbine extends automatically in the event of both engine and APU generator failures and allows the blue hydraulic system to be pressurized. RAT delivered pressure is 2500 psi (172 bars). Manual operation from the cockpit is always possible. possible. The Ram Air turbine is located in the blue hydraulic compartment. NOTE: RAT stowage is possible on ground only. ACCUMULATORS An accumulator, in each circuit helps to maintain a constant pressure during normal operation, by covering transient demands. POWER TRANSFER UNIT

1

A bidirectional Power Transfer Transfer Unit enables the green system to be powered by the yellow system or vice versa, without fluid transfer. The PTU is automatically activated when the differential pressure between the green and yellow system is higher than 500 psi (34 bars). When the engines are shut down, the PTU allows allows the green system to be pressurized using the yellow electric pump. The PTU is inhibited during the first engine start start and is automatically tested at second engine start.

L E V E L

0 0 2 4 D F U

1 0 T 1 0 2 D Y H U M T


29-00-00



29 HYDRAULIC POWER


1 L E V E L

0 0 2 4 D F U

1 0 2 D Y H U M T


29-00-00



29 HYDRAULIC POWER

SELF EXAMINATION Which hydraulic systems are pressurized by an engine driven pump ? A - Blue and green. B - Yellow and blue. C - Green and yellow. In normal operation, what is the blue hydraulic system pressurized by ? A - The Power Transfer Unit. B - An engine driven pump. C - An electric pump. Is it possible to stow the Ram Air Turbine in flight ? A - No. B - Yes.

1 L E V E L

0 0 2 4 D F U

1 0 2 D Y H U M T


29-00-00



29 HYDRAULIC POWER

29 - HYDRAULIC SYSTEM 29-10 29-10-0 -00 0 SYST SYSTEM EM CONTRO CONTROLS LS CONTENTS: Engine 1 Pump Ram Air Turbine Blue Electric Pump Power Transfer Unit Engine 2 Pump Yellow Electric Pump Blue Pump Override Leak Measurement Valves

1 L E V E L

0 0 2 4 D F U

5 0 4 D Y H U M T


29-10-00

Page Page 7 1 Jun 30/99


29 HYDRAULIC POWER

SYSTEM CONTROLS ENGINE 1 PUMP

ENGINE 2 PUMP

ENG 1 PUMP pushbutton controls the engine 1 hydraulic pump. In normal conditions the engine driven pump 1 pressurizes the green system. When the pushbutton is set to OFF, the pump operates in the depressurized depressurized mode.

ENG 2 PUMP pushbutton controls the engine 2 hydraulic pump. In normal conditions the engine driven pump 2 pressurizes the yellow system. When the pushbutton pushbutton is set to OFF, the pump operates in the depressurized mode.

RAM AIR TURBINE

YELLOW ELECTRIC PUMP

The RAT MAN ON guarded pushbutton permits Ram Air Turbine deployment at any time. RAT deployment is automatic automatic in case of failure of main generators (engines and APU) in flight.

The yellow ELEC PUMP pushbutton controls the yellow electric pump.

BLUE ELECTRIC PUMP

For maintenance purposes, the blue hydraulic circuit can be pressurized by pressing the BLUE PUMP OVRD pushbutton on the maintenance overhead panel. On ground, the electric pump operates, provided the BLUE PUMP OVRD pushbutton has been pressed in and the ELEC PUMP pushbutton is set to AUTO.

The blue ELEC PUMP pushbutton controls the blue electric pump. With the BLUE ELEC PUMP pushbutton set to AUTO, the electric pump operates from the moment the first engine is started until the last engine is shut-down. When the pushbutton is set to OFF, the pump is de-energized. 1 L E V E L

0 0 2 4 D F U

1 0 T 5 0 4 D Y H U M T

POWER TRANSFER UNIT The PTU pushbutton controls the arming of the bidirectional Power Transfer Unit automatic function.


BLUE PUMP OVERRIDE

LEAK MEASUREMENT VALVES A leak measurement valve is positioned positioned in each circuit upstream of the primary flight controls. Used for the leakage measurement of each circuit, circuit, they are closed, on ground only, by selecting OFF the leak measurement valve pushbutton switches on the maintenance overhead panel.

29-10-00



29 HYDRAULIC POWER

1 L E V E L

0 0 2 4 D F U

1 0 P 5 0 4 D Y H U M T

SYSTEM CONTROLS EFFECTIVITY EFFECTIVITY ALL

29-10-00



29 HYDRAULIC POWER


1 L E V E L

0 0 2 4 D F U

5 0 4 D Y H U M T


29-10-00

Page Page10 4 Jun 30/99


29 HYDRAULIC POWER

29 - HYDRAULIC SYSTEM 29-00-0 29-0 0-00 0 HYD HYDRAU RAULIC LIC SYST SYSTEM EM USERS USERS CONTENTS: Green, Blue, Yellow users Priority Valves

1 L E V E L

0 0 2 4 D F U

2 0 3 D Y H U M T


29-00-00

Page Page11 1 Mar 31/94


29 HYDRAULIC POWER

HYDRAULIC SYSTEM USERS GREEN, BLUE, YELLOW USERS The three independent hydraulic systems respectively supply the users indicated on the diagram. Between these systems, the users are shared in order to ensure the aircraft control, even if only one hydraulic system is inoperative. On the blue hydraulic system, the Constant Speed Motor/Generator (CSM/G) is used to provide aircraft electrical power in case of emergency. PRIORITY VALVES In the event of low hydraulic pressure, the priority valves maintain the operation of essential essential systems by cutting off hydraulic power to heavy load users.

1 L E V E L

0 0 2 4 D F U

1 0 T 2 0 3 D Y H U M T


29-00-00



29 HYDRAULIC POWER

1 L E V E L

0 0 2 4 D F U

1 0 P 2 0 3 D Y H U M T

HYDRAULIC SYSTEM USERS EFFECTIVITY EFFECTIVITY ALL

29-00-00



29 HYDRAULIC POWER

SELF EXAMINATION What happens if the hydraulic pressure drops ? A- The priority valves give priority to the heavy load users. B- The priority valves give priority to the essential systems. C- The priority valves modulate the pressure to the users.

1 L E V E L 0 0 2 4 D F U

2 0 3 D Y H U M T


29-00-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C SYST SYSTEM EM 29-00-0 29-0 0-00 0 CIRCUI CIRCUIT T IDENTIFI IDENTIFICAT CATION ION AND ROUTING CONTENTS: Pipe Routing Pipe Identification Component Identification Connections Self Examination

1 L E V E L

0 0 2 4 D F U

2 0 L A Y H U M T


29-00-00

Page Page15 1 Oct 31/98


29 HYDRAULIC POWER

CIRCUIT IDENTIFICATION AND ROUTING PIPE ROUTING The three systems are hydraulically independent. There are no hydraulic pipes in the passenger cabin or flight compartment.

1 L E V E L

0 0 2 4 D F U

1 0 T 2 0 L A Y H U M T


29-00-00



29 HYDRAULIC POWER

1 L E V E L

0 0 2 4 D F U

1 0 P 2 0 L A Y H U M T

CIRCUIT IDENTIFICATION AND ROUTING EFFECTIVITY EFFECTIVITY ALL

29-00-00



29 HYDRAULIC POWER

CIRCUIT IDENTIFICATION AND ROUTING PIPE IDENTIFICATION Each pipe is identified by a self-adhesive self-adhesive label which indicates: - The part number of the pipe, - The identification of the pipe as an hydraulic pipe (black dots, yellow and blue fields) its function and the direction of the fluid flow. - An identification of the system comprising a color code and a number 1, 2 or 3 respectively indicating the Green, Blue, or Yellow system.

1 L E V E L

0 0 2 4 D F U

2 0 T 2 0 L A Y H U M T


29-00-00



29 HYDRAULIC POWER

1 L E V E L

0 0 2 4 D F U

2 0 P 2 0 L A Y H U M T


29-00-00



29 HYDRAULIC POWER

CIRCUIT IDENTIFICATION AND ROUTING COMPONENT IDENTIFICATION Each hydraulic component is identified by a placard affixed on the structure near to it, which gives its Functional Item Number (FIN) and its designation.

1 L E V E L

0 0 2 4 D F U

3 0 T 2 0 L A Y H U M T


29-00-00



29 HYDRAULIC POWER

1 L E V E L

0 0 2 4 D F U

3 0 P 2 0 L A Y H U M T


29-00-00



29 HYDRAULIC POWER

CIRCUIT IDENTIFICATION AND ROUTING CONNECTIONS The most common connections in the hydraulic system are shown below. There are two types of connections:

- permanent connections (permaswage). - removable connections (standard straight or special fittings). The manifolds have bobbin type connections for some components. The bobbins are equipped with a square seal on the component side and an o-ring on the manifold side.

1 L E V E L

0 0 2 4 D F U

4 0 T 2 0 L A Y H U M T


29-00-00



29 HYDRAULIC POWER

1 L E V E L

0 0 2 4 D F U

4 0 P 2 0 L A Y H U M T


29-00-00



29 HYDRAULIC POWER

SELF EXAMINATION A blue system pipeline is A - A blue band and B - A blue band and C - A blue band and

identified by: number 1. number 3. number 2.

1 L E V E L 0 0 2 4 D F U

2 0 L A Y H U M T


29-00-00

Page Page 24 10 Oct 31/98


29 HYDRAULIC POWER

29 - HYDRAULIC SYSTEM 29-30-0 29-3 0-00 0 ECA ECAM M PAGE PAGE PRESEN PRESENTAT TATION ION CONTENTS: Reservoir Quantity Reservoir Pressure Reservoir Overheat Fire Valve Engine Driven Pumps Blue Electric Pump Yellow Electric Pump Ram Air Turbine Power Transfer Unit System Pressure System Label

1 L E V E L

0 0 2 4 D F U

1 0 5 D Y H U M T


29-30-00



29 HYDRAULIC POWER

ECAM PAGE PRESENTATION RESERVOIR QUANTITY The reservoir quantity indication is green when normal. It becomes amber at warning level. RESERVOIR PRESSURE Reservoir LO AIR PRESS indication indication appears amber if the corresponding reservoir air pressure drops below normal. RESERVOIR OVERHEAT Reservoir OVHT indication indication appears amber if the return hydraulic fluid temperature is above normal. FIRE VALVE The fire valve is green in line when open or not fully closed and amber cross-line when closed.

1 L E V E L

0 0 2 4 D F U

1 0 T 1 0 5 D Y H U M T


29-30-00



29 HYDRAULIC POWER

1 L E V E L

0 0 2 4 D F U

1 0 P 1 0 5 D Y H U M T

ECAM PAGE PRESENTATION EFFECTIVITY EFFECTIVITY ALL

29-30-00



29 HYDRAULIC POWER

1 L E V E L

0 0 2 4 D F U

2 0 P 1 0 5 D Y H U M T


29-30-00



29 HYDRAULIC POWER

1 L E V E L

0 0 2 4 D F U

3 0 P 1 0 5 D Y H U M T


29-30-00



29 HYDRAULIC POWER

ECAM PAGE PRESENTATION POWER TRANSFER UNIT When PTU is running HYD PTU is displayed green green on MEMO display. SYSTEM PRESSURE System pressure indication is normally green. It becomes amber when the system pressure is too low. 3000 -green: System presure is normal. 1430 -amber: System pressure is too low (pressure below 1450 psi=100 bars). SYSTEM LABEL System label is a white word and a green arrow when the pressure is normal. Both the word and the arrow are amber when pressure is too low.

1 L E V E L

0 0 2 4 D F U

4 0 T 1 0 5 D Y H U M T


29-30-00



29 HYDRAULIC POWER

1 L E V E L

0 0 2 4 D F U

4 0 P 1 0 5 D Y H U M T


29-30-00



29 HYDRAULIC POWER


1 L E V E L

0 0 2 4 D F U

1 0 5 D Y H U M T


29-30-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-00-0 29-0 0-00 0 HYD HYDRAU RAULIC LIC SYSTEM SYSTEM WARNI WARNINGS NGS CONTENTS: Green Reservoir Low Air Pressure Yellow Reservoir Overheat Blue Reservoir Low Level Green Engine Pump Low Pressure Yellow Electric Pump Low Pressure Dual System Low Pressure Ram Air Turbine Fault Power Transfer Unit Fault Yellow Electric Pump Overheat

3 L E V E L

0 0 2 4 D F U

2 0 6 D Y H U M T


29-00-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 2 0 6 D Y H U M T

HYDRAULIC SYSTEM WARNINGS EFFECTIVITY EFFECTIVITY ALL

29-00-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 0 P 2 0 6 D Y H U M T

HYDRAULIC SYSTEM WARNINGS EFFECTIVITY EFFECTIVITY ALL

29-00-00



29 HYDRAULIC POWER


3 L E V E L

0 0 2 4 D F U

2 0 6 D Y H U M T


29-00-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-11-0 29-1 1-00 0 GRE GREEN EN HYDRAU HYDRAULIC LIC SYSTE SYSTEM M D/O CONTENTS: Reservoir Reservoir Pressurization Fire Valve Engine Driven Pump Ground Couplings Pressure Switch Power Transfer Unit High Pressure Manifold Leak Measurement Manifold Power Transfer Unit Manifold Return Manifold Self Examination

3 L E V E L

0 0 2 4 D F U

3 0 B D Y H U M T


29-11-00

Page Page37 1 Jul 31/00


29 HYDRAULIC POWER

GREEN HYDRAULIC SYSTEM D/O Most of the system components are installed in the main landing gear compartment. RESERVOIR The reservoir is equipped with a direct reading reading gauge, a quantity indicator and a low level switch for ECAM indicating and warning. Normal fill level: 14 l. (3.7 US gal) Maximum gaugeable level: 18 l. (4.76 US gal) Low level warning: 3.0 ± 0.4 l. (0.79 ± 0.1 US gal) RESERVOIR PRESSURIZATION The reservoir is normally pressurized with air to prevent cavitation of the pumps. The reservoir is pressurized pressurized to 50 psi (3.43 bar) and is sealed to hold the pressure when there is no air supply. The threshold of the low pressure switch is 22 psi (1.52bar). FIRE VALVE

3 L E V E L

0 0 2 4 D F U

ENGINE DRIVEN PUMP The Engine Driven Pump is attached to the accessory gearbox. A solenoid valve controlled controlled by the ENG 1 PUMP push-button selects the pressurized or depressurized mode. The Engine Driven Pump cooling and lubricating flow passes through the case drain filter installed in the return circuit. Pump outlet pressure is 3000 psi (206 bar) at zero flow. The Engine Driven Pump includes a blocking valve valve which isolates the pump from the hydraulic system when the pump operates in the depressurized mode. Case drain filter clogging indication: ∆P = 87 ± 8.7 psi (6 ± 0.6 bar). GROUND COUPLINGS The ground service panel consists of two connectors used to pressurize the green hydraulic system from a ground cart, a selector valve, two connectors and a hand pump used for hydraulic reservoir refilling.

The green system fire valve installed installed in the left hand wing, inboard of the pylon, is controlled by ENG 1 FIRE push-button. When the valve closes it stops stops the supply of fluid to the Engine Driven Pump.

1 0 T 3 0 B D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 3 0 B D Y H U M T

GREEN HYDRAULIC SYSTEM D/O EFFECTIVITY EFFECTIVITY ALL

29-11-00



29 HYDRAULIC POWER

GREEN HYDRAULIC SYSTEM D/O PRESSURE SWITCH The pressure switch monitors the Engine Driven Pump outlet pressure for ECAM indications. The threshold of pressure pressure switch is 1740 psi (120 bar). NOTE: A check valve downstream downstream of the pump stops stops the fluid flow to the pump if the system is pressurized by the Power Transfer Unit (PTU).

LEAK MEASUREMENT VALVE The leak Measurement valve isolates the flight controls when the guarded LEAK MEASUREMENT VALVES pushbutton on the maintenance panel is set to OFF. HP FILTER The high pressure filter is equipped with a clogging indicator. The clogging indicator operates when the differential pressure is higher than 87 ± 8.7 psi (6 ± 0.6 bar).

POWER TRANSFER UNIT The Power Transfer Unit will run automatically when the differential pressure pressure between the green and yellow circuits is greater than 500 psi (34.5 bar). The PTU is inhibited during the first first engine start and cargo door operation.

ACCUMULATOR The accumulator acts as a damper for small changes. It also makes a supply of fluid available in case of any demand. The accumulator is precharged with nitrogen to 1885 psi (130 bar) at 20°C. It holds 1.1l (0.29 USgal) of total volume of fluid when it is full.

HIGH PRESSURE MANIFOLD

3 L E V E L

0 0 2 4 D F U

2 0 T 3 0 B D Y H U M T

PRESSURE SWITCHES The signals from both pressure switches are sent to the Flight Control Computers, to the Braking Steering Steering Control Unit, to the ECAM and to the Flight Augmentation Computer. The threshold of the pressure switches is 1450 psi (99.5 bar).

SAMPLING VALVE A sampling valve is provided on the HP manifold. PRESSURE RELIEF VALVE The system relief valve connects the high pressure circuit to the return circuit in case of overpressure. overpressure. The relief valve opens at 3436 psi (237 bar) and closes at 3190 psi (220 bar).

PRESSURE TRANSDUCER The pressure transducer provides data for pressure indication on the ECAM and sends information to ELAC 1 and 2.


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 0 P 3 0 B D Y H U M T


29-11-00



29 HYDRAULIC POWER

GREEN HYDRAULIC SYSTEM D/O LEAK MEASUREMENT MANIFOLD

RETURN MANIFOLD

The leak measurement valve block supplies the flight controls of the right hand wing, left hand wing and tail section via three outputs. Operating a spool valve allows the associated section section to be supplied for leak measurement test.

The return manifold comprises:

POWER TRANSFER MANIFOLD NORMAL BRAKING SELECTOR VALVE The normal braking selector valve cuts-off hydraulic supply to the normal brakes.

the

- one return filter equipped with a clogging indicator.

- one temperature transmitter which consists of one temperature switch and two temperature transducers. The bypass operates when the differential pressure across the filter is more than 29 ± 2.35 psi (2 ± 0.16 bar). Temperature switch and temperature transducers send data to the ECAM for warnings.

SOLENOID VALVE The solenoid valve installed in the Power Transfer Unit supply line stops the Power Transfer Unit operation. PRIORITY VALVE The priority valve makes sure that all available hydraulic pressure is sent to the primary flight controls if pressure in the system is reduced.

3 L E V E L

0 0 2 4 D F U

3 0 T 3 0 B D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 0 P 3 0 B D Y H U M T


29-11-00



29 HYDRAULIC POWER

SELF EXAMINATION When is the PTU operation inhibited? A - Never, it cannot be inhibited. B - Only if an engine failure has been detected. C - In case of cargo door operation with the yellow electric pump. When is the engine fire shut-off valve closed? A - Automatically when the engine is shut down. B - If the ENG FIRE pushbutton is released out. C - Automatically as soon as engine fire is detected.

3 L E V E L

0 0 2 4 D F U

3 0 B D Y H U M T


29-11-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-12-0 29-1 2-00 0 BLU BLUE E HYDRAUL HYDRAULIC IC SYSTE SYSTEM M D/O CONTENTS: Reservoir Reservoir Pressurization Electric Pump Ram Air Turbine Pressure Switch High Pressure Manifold Leak Measurement Manifold Return Manifold Ground Couplings Self Examination

3 L E V E L

0 0 2 4 D F U

3 0 C D Y H U M T


29-12-00



29 HYDRAULIC POWER

BLUE HYDRAULIC SYSTEM D/O Most of the system components are installed in the blue hydraulic compartment located in the left hand belly fairing, forward of the main landing gear compartment. RESERVOIR The reservoir is equipped with a direct reading reading gauge, a quantity indicator and a low level switch for ECAM indicating and warning. Normal fill level: 6l (1.58 US gal) Maximum gaugeable level: 8l (2.11 US gal) Low level warning: between between 2.0 and 2.3l (0.52 and 0.6US gal). RESERVOIR PRESSURIZATION

ELECTRIC PUMP With the ELEC PUMP pushbutton set to AUTO, the blue electric pump will run, if one engine is running, or BLUE PUMP OVRD pushbutton is set to ON, or Nose Landing Gear is not compressed and AC power is available from APU. With the last condition, at touch down a time delay relay maintains the pump operation for two minutes after nose landing gear compression. The pump outlet pressure is 3000 psi (206 bar) at zero flow. A temperature switch sends a signal to the ECAM if the pump body temperature exceeds 165°C. The electric pump cooling and lubricating lubricating flow passes through the case drain filter installed in the return circuit.

The reservoir is normally pressurized with air to prevent pump cavitation. The reservoir is pressurized pressurized to 50 psi (3.43 bar) and is sealed to hold the pressure when there is no air supply. The threshold of the air pressure switch is 22 psi (1.52 bar).

3 L E V E L

0 0 2 4 D F U

1 0 T 3 0 C D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 3 0 C D Y H U M T

BLUE HYDRAULIC SYSTEM D/O EFFECTIVITY EFFECTIVITY ALL

29-12-00



29 HYDRAULIC POWER

BLUE HYDRAULIC SYSTEM D/O RAM AIR TURBINE The Ram Air Turbine (RAT) is deployed automatically if all AC electrical power sources are lost at speeds greater than 100Kts, or manually by using either of the guarded pushbuttons. PRESSURE SWITCH The pressure switch monitors the electric pump pressure for ECAM indications. The threshold of the pressure switch switch is 1450 psi (99.5 bar). A check valve stops the flow of of fluid to the electric pump if the system is pressurized by the RAT. HIGH PRESSURE MANIFOLD PRESSURE SWITCHES The signals from both pressure switches are sent to the ECAM system and to the Flight Control Computers. The threshold of the pressure switches is 1450 psi (99.5 bar).

3 L E V E L

0 0 2 4 D F U

2 0 T 3 0 C D Y H U M T

PRESSURE TRANSDUCER The pressure transducer provides data for pressure indication on the ECAM and sends information to ELAC 1 and 2.

HP FILTER The high pressure filter is equipped with a clogging indicator. The clogging indicator operates when the differential pressure is higher than 87 ± 8.7 psi (6 ± 0.6 bar). ACCUMULATOR The accumulator acts as a damper for small changes. It also makes a supply of fluid available in case of any demand. The accumulator is precharged with nitrogen to 1885 psi (130 bar) at 20°C. It holds 1.1l (0.29 USgal) of total volume of fluid when it is full. PRIORITY VALVE The priority valve makes sure that all available hydraulic pressure is sent to the primary flight controls if pressure in the system is reduced. PRESSURE RELIEF VALVE The pressure relief valve connects the high pressure circuit to the return circuit in case case of over pressure. The relief valve opens at 3436 psi (237 bar) and closes at 3190 psi (220 bar). SAMPLING VALVE A sampling valve is provided on the HP Manifold.

LEAK MEASUREMENT VALVE The leak measurement valve isolates the flight controls when the guarded LEAK MEASUREMENT VALVES pushbutton on the maintenance panel is set to OFF.


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 0 P 3 0 C D Y H U M T


29-12-00



29 HYDRAULIC POWER

BLUE HYDRAULIC SYSTEM D/O LEAK MEASUREMENT MANIFOLD The leak measurement valve block supplies the flight controls of the right hand wing, left hand wing and tail section via three outputs. Operating a spool valve allows the associated section section of the flight controls to be supplied for leak measurement test. RETURN MANIFOLD The return manifold comprises:

- one return filter equipped with a clogging indicator.

- one temperature transmitter which consists of one temperature switch and two temperature transducers. The bypass operates when the differential pressure across the filter is more than 29 ± 2.35 psi (2 ± 0.16 bar). Temperature switch and probes send data to the ECAM for indication and warnings. GROUND COUPLINGS

3

On ground it is possible to pressurize the hydraulic system from a ground power unit.

blue

L E V E L

0 0 2 4 D F U

3 0 T 3 0 C D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 0 P 3 0 C D Y H U M T


29-12-00



29 HYDRAULIC POWER

SELF EXAMINATION When does the electric pump pressurize the blue system? A - When the aircraft is on the ground, ELEC PUMP push-button is set to AUTO and OVRD (override) push-button is set to ON. B - When the green and yellow systems are detected in low pressure configuration. C - As soon as one engine is running and OVRD pushbutton is set to ON. When does the RAT deploy automatically? A - In flight, if blue hydraulic power is lost. B - As soon as two hydraulic power systems are lost. C - At speeds greater than 100Kts, if all electrical power sources are lost.

3 L E V E L

0 0 2 4 D F U

3 0 C D Y H U M T


29-12-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-13-0 29-1 3-00 0 YEL YELLOW LOW HYDRA HYDRAULI ULIC C SYSTEM SYSTEM D/O CONTENTS: Reservoir Reservoir Pressurization Fire Valve Engine Driven Pump Ground Couplings Pressure Switch Power Transfer Unit Electric Pump Hand Pump High Pressure Manifold Leak Measurement Manifold Power Transfer Unit Manifold Return Manifold Self Examination

3 L E V E L 0 0 2 4 D F U

4 0 D D Y H U M T


29-13-00



29 HYDRAULIC POWER

YELLOW HYDRAULIC SYSTEM D/O Most of the system components are installed in the yellow hydraulic compartment, located in the right hand belly fairing, forward of the main landing gear compartment. RESERVOIR The reservoir is equipped with a direct reading reading gauge, a quantity indicator and a low level switch for ECAM indications and warnings. Normal fill level: 12 l (3.17 US gal). Maximum gaugeable level: 18 l (4.76 US gal). Low level warning: 3 ± 0.4 l (0.79 ± 0.1 US gal). RESERVOIR PRESSURIZATION The reservoir is normally pressurized with air to prevent cavitation of the pumps. The reservoir is pressurized pressurized to 50 psi (3.43 bar) and is sealed to hold the pressure when there is no air supply. The threshold of the air pressure switch is 22 psi (1.52 bar).

ENGINE DRIVEN PUMP The Engine Driven Pump is attached to the accessory gearbox. A solenoid valve controlled controlled by the ENG 2 PUMP pushbutton selects the pressurized or depressurized mode. The Engine Driven Pump cooling and lubricating flow passes through a case drain filter installed in the return line. Pump outlet pressure is 3000 psi (206 bar) at zero flow. The Engine Driven Pump includes a blocking valve valve which isolates the pump from the hydraulic system when the pump operates in the depressurized mode. Case drain filter clogging indication: ∆P = 87 ± 8.7 8.7 psi (6 ± 0.6 bar). GROUND COUPLINGS On the ground it is possible to pressurize the yellow hydraulic system from a ground power unit.

FIRE VALVE 3 L E V E L

0 0 2 4 D F U

1 0 T 4 0 D D Y H U M T

The yellow system fire valve installed in the right hand wing, inboard of the pylon, is controlled controlled by ENG2 FIRE pushbutton. When the valve closes it stops stops the supply of fluid to the Engine Driven Pump.


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 4 0 D D Y H U M T

YELLOW HYDRAULIC SYSTEM D/O EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER

YELLOW HYDRAULIC SYSTEM D/O PRESSURE SWITCH

HAND PUMP

A pressure switch monitors the Engine Driven Pump outlet pressure for ECAM indications. The threshold of the pressure switch switch is 1740 psi (120 bar). NOTE: A check valve downstream downstream of the pump stops stops the fluid flow to the pump if the system is pressurized by the Power Transfer Unit (PTU) or by the yellow electric pump.

The hand pump is installed on the ground service service panel of the yellow system and is used for manual cargo door operation only. On ground, when no electrical power is available, the hand pump can be used to open or close the cargo doors.

POWER TRANSFER UNIT The Power Transfer Unit will run automatically when the differential pressure pressure between the green and yellow systems is greater than 500 psi (34.5 bar). The PTU is inhibited during the first first engine start and cargo door operation. ELECTRIC PUMP

3 L E V E L

0 0 2 4 D F U

2 0 T 4 0 D D Y H U M T

The yellow electric pump runs if the ELEC PUMP pushbutton is set to ON, or if a cargo door selector is operated. The electric pump cooling and lubricating lubricating flow passes through the return filter. In case of cargo door operation, the PTU is inhibited, inhibited, the yellow leak measurement valve is closed and a signal is sent to SFCC2 to prevent flaps movement. A check valve downstream of the pump stops the fluid flow to the pump if the system is pressurized from the Engine Driven Pump or the PTU.


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 0 P 4 0 D D Y H U M T


29-13-00



29 HYDRAULIC POWER

YELLOW HYDRAULIC SYSTEM D/O HIGH PRESSURE MANIFOLD PRESSURE SWITCHES The signals from both pressure switches are sent to the ECAM system, to the Flight Control Computers and to the Flight Augmentation Computer 2. The threshold of the pressure switches is 1450 psi (99.5 bar). PRESSURE TRANSDUCER The pressure transducer provides data for pressure indication on the ECAM and sends information to ELAC 1 and 2. LEAK MEASUREMENT VALVE The leak measurement valve isolates the flight controls when the guarded LEAK MEASUREMENT VALVES pushbutton on the maintenance panel is set to OFF. The solenoid valve is automatically closed if the yellow electric pump is energized by using cargo door selectors. This is to prevent any movement of the flight controls.

3 L E V E L

0 0 2 4 D F U

ACCUMULATOR The accumulator acts as a damper for small changes. It also makes a supply of fluid available in case of any demand. The accumulator is precharged with nitrogen to 1885 psi (130 bar) at 20°C. It holds 1.1l (0.29 USgal) of total volume of fluid when it is full. SAMPLING VALVE A sampling valve is provided on the HP manifold. PRESSURE RELIEF VALVE The pressure relief valve connects the high pressure circuit to the return circuit in case of overpressure. overpressure. The relief valve opens at 3436 psi (237 bar) and closes at 3190 psi (220 bar).

HP FILTER The High Pressure filter is equipped with a clogging indicator. The clogging indicator operates when the differential pressure is higher than 87 ± 8.7 psi (6 ± 0.6 bar).

3 0 T 4 0 D D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 0 P 4 0 D D Y H U M T


29-13-00



29 HYDRAULIC POWER

YELLOW HYDRAULIC SYSTEM D/O LEAK MEASUREMENT MANIFOLD

Temperature switch and probes send data to the ECAM for indication and warnings.

The leak measurement valve block supplies the flight controls of the right hand wing, left hand wing and tail section via three separate outputs. Opening a spool valve allows the associated section of the flight controls to be supplied for leak measurement test. PTU MANIFOLD QUICK DISCONNECT The quick disconnect is used for maintenance operations to prevent Power Transfer Unit operation. PRIORITY VALVE The priority valve makes sure that all available hydraulic pressure is sent to the primary flight controls if pressure in the system is reduced. SOLENOID VALVE The solenoid valve, installed in the Power Transfer Unit supply line, stops the Power Transfer Unit operation. RETURN MANIFOLD 3 L E V E L

0 0 2 4 D F U

4 0 T 4 0 D D Y H U M T

The return manifold comprises:

- a return filter equipped with a clogging indicator.

- a

temperature switch and two temperature transducers. The bypass operates when the differential pressure across the filter is more than 29


± 2.35

psi (2

± 0.16

bar).

29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

4 0 P 4 0 D D Y H U M T


29-13-00



29 HYDRAULIC POWER

SELF EXAMINATION When is the Engine Driven Pump in the depressurized mode? A - When the ENG 2 PUMP pushbutton is set to OFF. B - The engine pump cannot be depressurized as long as the engine is running. C - The engine pump is automatically depressurized if the output pressure drops below 1450 psi. How can the LH wing be supplied independently during leak measurement test? A - By setting the leak measurement valve to OFF and operating the electric pump B - By pressurizing the yellow system by using the PTU. C - By setting the leak measurement valve to OFF and manually open the LH wing spool valve. What can the A - To B - To C - To

3 L E V E L

0 0 2 4 D F U

hand pump be used for? pressurize the reservoir. check the flight controls. operate the cargo doors.

During which operation is the leak measurement valve closed automatically? A - PTU operation. B - Cargo door operation. C - Hand pump operation.

4 0 D D Y H U M T


29-13-00

Page Page 62 10 Jul 31/00


29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-19-0 29-1 9-00 0 LEAKAG LEAKAGE E MEASUREM MEASUREMENT ENT SYSTEM SYSTEM PRESENTATION CONTENTS: General Hydraulic System Test Full System Test Component Check

3 L E V E L

0 0 2 4 D F U

1 0 W D Y H U M T


29-19-00



29 HYDRAULIC POWER

LEAKAGE MEASUREMENT SYSTEM PRESENTATION The yellow system has been chosen as an example.

HYDRAULIC SYSTEM TEST

GENERAL

To test a complete hydraulic system, a hydraulic ground cart equipped with a flow meter has to be used to pressurize the circuit. Precautions: Precautions: Before starting the test test make make sure that all servocontrols are in their neutral position and that the spoilers are retracted. Do not forget to disconnect the isolation coupling of the PTU to prevent inadvertent pressurization of the green system by the PTU.

The return flow of a hydraulic hydraulic system is equal to the user’s demand flow plus the permanent internal leakage. Note: Even with with users at at neutral, neutral, there is a permanent permanent flow. If the permanent flow is too high the corresponding system operation will be affected. The flight controls users are permanently supplied through Leak Measurement Valves. Valves. These valves have to be closed during leak hydraulic system test. Internal leakage (full system check) is measured for each group of users through manually operated shut-off valves.

The internal leakage flow rate is indicated by the flow meter. If the flow rate is too too high, a full system check has to be carried out to find out the faulty group of hydraulic users (RH wing, LH wing, Tail section, Central section).

3 L E V E L

0 0 2 4 D F U

1 0 T 1 0 W D Y H U M T


29-19-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 1 0 W D Y H U M T

LEAKAGE MEASUREMENT SYSTEM PRESENTATION EFFECTIVITY EFFECTIVITY ALL

29-19-00



29 HYDRAULIC POWER

LEAKAGE MEASUREMENT SYSTEM PRESENTATION FULL SYSTEM CHECK

COMPONENT CHECK

Once the hydraulic system is pressurized from the ground cart, make sure that the ELAC’s, SEC’s and FAC2 are set to ON to supply the hydraulic users.

Each type of hydraulic component has a maximum permitted internal leakage limit. Note: The total leakage of the components within a section must be less than the permitted maximum for that section. All together, the total leakages of the sections must not be more than the leakage permitted for the complete system. If the internal leakage is too high, the faulty component must be identified and replaced. High leakage rate causes an increase of component temperature. If a servocontrol is considered to be faulty, it must be disconnected and the corresponding hydraulic section rechecked. If the internal leakage rate is now within within the limits, the servocontrol is confirmed as defective.

The Flight Controls surfaces must be kept in the neutral position. Note: The inte internal rnal leakage leakage check has has to be done with the hydraulic fluid at its normal working temperature. The full system check is carried out by checking successively the four sections of the hydraulic system with the corresponding Leakage Measurement Valve in the closed position. The indicated flow must be compared to the theoretical theoretical one and if the flow is over the limit the failed component belongs to this group of users.

3 L E V E L

0 0 2 4 D F U

2 0 T 1 0 W D Y H U M T


29-19-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 0 P 1 0 W D Y H U M T

LEAKAGE MEASUREMENT SYSTEM PRESENTATION EFFECTIVITY EFFECTIVITY ALL

29-19-00



29 HYDRAULIC POWER

THIS PAGE LEFT INTENTIONALLY BLANK

3 L E V E L

0 0 2 4 D F U

1 0 W D Y H U M T


29-19-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-14-00 29-14-00 HYDRAULIC HYDRAULIC RESERVOIR RESERVOIR PRESSURIZING PRESSURIZING SYSTEM D/O CONTENTS: General Sources Restrictor Reservoir Pressurization Unit Pressure Reducing Valve Ground Connector Filter Water Separator Reservoir Check Valves Pressure Gage Pressure Relief Valve Manual Depressurization Valve Self Examination

3 L E V E L

0 0 2 4 D F U

5 0 E D Y H U M T


29-14-00

Page Page69 1 Apr 30/98


29 HYDRAULIC POWER

HYDRAULIC RESERVOIR PRESSURIZING SYSTEM D/O GENERAL

PRESSURE REDUCING VALVE

An air pressure system is provided to pressurize each hydraulic reservoir in order to ensure adequate adequate fluid supply to the pumps. Each reservoir is pressurized by air at 50 psi (3.5 bar). The system also remains airtight in the event of pressurization system failure or after engine shutdown.

A pressure reducing valve is fitted to the reservoir pressurization unit. In normal operation, the delivery pressure of engine 1 has priority over the pressure supply from the pneumatic manifold. Pressure reducing valve outlet pressure: 50 psi (3.5 bar). Two check valves prevent any reverse flow.

SOURCES GROUND CONNECTOR The pressure sources are engine 1, via a restrictor or both engines and the APU, via the pneumatic manifold. The pressure sources are:

- the engine 1 HP compressor (usual operation). - the pneumatic system in case of loss of engine1. - the ground supply. RESTRICTOR A restrictor limits the airflow and reduces the temperature of the high pressure pressure air to a satisfactory level. The restrictor also prevents too much bleed air leakage in case of a leak downstream of the restrictor. 3 L E V E L

0 0 2 4 D F U

1 0 T 5 0 E D Y H U M T

RESERVOIR PRESSURIZATION UNIT The reservoir pressurization unit (RPU) controls the pressure of the air supplied to the reservoirs.


Pressurized air from a ground supply cart goes directly to the reservoir pressurization unit unit through a ground connector. FILTER A filter fitted with a clogging indicator is installed installed in the reservoir pressurization pressurization unit to filter the air from the different supply sources. WATER SEPARATOR A water separator is installed on the reservoir pressurization unit. It makes sure that the air delivered to the reservoirs is clear of any fluid. There are two drain valves which prevent freezing of the water in the RPU.One is an automatic drain valve which is opened after each engine or APU shutdown, shutdown, the other one is a manual self-sealing drain valve.

29-14-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 5 0 E D Y H U M T

HYDRAULIC RESERVOIR PRESSURIZING SYSTEM D/O EFFECTIVITY EFFECTIVITY ALL

29-14-00



29 HYDRAULIC POWER

HYDRAULIC RESERVOIR PRESSURIZING SYSTEM D/O RESERVOIR CHECK VALVES

MANUAL DEPRESSURIZATION VALVE

Downstream of the reservoir pressurization unit, the air supply is divided into three flows to supply the reservoirs through their related check valve. The green and yellow check valves are installed between the floor beams above the hydraulic bay and the blue one is installed in the Aft cargo compartment.

A manual depressurization valve is fitted on each ground service panel to depressurize each reservoir.

PRESSURE GAGE

WARNING: When using using the manual d depressuriz epressurization ation valve valve put on eye protection and keep away from the outlet of the valve. The air can be hot and contain particles of dust and/or hydraulic fluid.

An air pressure gage is installed on each hydraulic reservoir to indicate the actual pressure. LOW AIR PRESS warning is generated by the pressure switch if the pressure is less than 22 psi (1.52 bar). PRESSURE RELIEF VALVE A pressure relief valve, installed installed on each reservoir, relieves pressure to the atmosphere atmosphere in the event of a system overpressure. The threshold of the pressure relief valve is 77 psi (5.3 bar).

3 L E V E L

0 0 2 4 D F U

1 0 T 5 0 E D Y H U M T


29-14-00



29 HYDRAULIC POWER

SELF EXAMINATION When can the APU pressurize the reservoirs? A - On ground only B - In flight only C - A and B What are the manual depressurization valves provided for? A - Individual reservoir depressurization B - Depressurization of related hydraulic circuit C - Hydraulic system depressurization What is the purpose of the pressure relief valve? A - To relieve hydraulic pressure to the return manifold B - To relieve excessive air pressure to the atmosphere C - To provide overpressure warning to the ECAM

3 L E V E L

0 0 2 4 D F U

5 0 E D Y H U M T


29-14-00



29 HYDRAULIC POWER


3 L E V E L

0 0 2 4 D F U

5 0 E D Y H U M T


29-14-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-16-0 29-1 6-00 0 HYDRAU HYDRAULIC LIC RESERVO RESERVOIR IR FILLING FILLING PRESENTATION CONTENTS: Coupling Socket Restrictor Hand Pump Filter Reservoir Filling Selector Valve Reservoir Quantity Indicator Check Valve Self Examination

2 L E V E L

0 0 2 4 D F U

1 0 F D Y H U M T


29-16-00



29 HYDRAULIC POWER

HYDRAULIC RESERVOIR FILLING PRESENTATION COUPLING SOCKET

RESERVOIR FILLING SELECTOR VALVE

The coupling socket is used to fill the reservoir reservoir from a pressurized ground hydraulic supply. The coupling socket includes a check valve.

The reservoir filling selector valve directs the hydraulic fluid from the supply source to the reservoir of the selected system. Do not depressurize the hydraulic reservoir to refill it. In the NEUTRAL position, an internal thermal relief valve protects the selector valve from thermal expansion of the fluid.

RESTRICTOR A restrictor located between the coupling socket and the reservoir filling selector valve protects the system against over pressure. HAND PUMP The hand pump is used to refill the reservoirs if no ground cart is available. The hand pump lever is on on the yellow ground service panel. A specific filling valve including a filter and a check valve is installed on the hand pump.

RESERVOIR QUANTITY INDICATOR A reservoir quantity indicator allows refilling monitoring. It shows the contents of the selected hydraulic reservoir which is indicated by one of the three colored lights. The direct reading gauges are used if no electrical power supply is available. CHECK VALVE

FILTER The filter of the reservoir filling system system is equipped with a clogging indicator. Note: Note : No bypass bypass possibilit possibility y on this filter. filter. 2

The hydraulic fluid is sent to the reservoirs via a check valve and the filter of the low-pressure return circuit. The check valves isolate the main hydraulic systems from the reservoir filling system when it is not in use.

L E V E L

0 0 2 4 D F U

1 0 T 1 0 F D Y H U M T


29-16-00



29 HYDRAULIC POWER

2 L E V E L

0 0 2 4 D F U

1 0 P 1 0 F D Y H U M T

HYDRAULIC RESERVOIR FILLING PRESENTATION EFFECTIVITY EFFECTIVITY ALL

29-16-00



29 HYDRAULIC POWER

SELF EXAMINATION Do the hydraulic reservoirs have to be depressurized to refill with hydraulic fluid? A - Yes B - No What is the main function of the restrictor? A - to limit the pressure from the hand pump. B - to protect the system against overpressure. C - to limit thermal expansion of the hydraulic fluid What happens when the filter of the filling circuit is clogged? A - the fluid bypasses the filter element. B - the fluid is stopped; filling is impossible. C - the filling pressure has to be increased.

2 L E V E L

0 0 2 4 D F U

1 0 F D Y H U M T


29-16-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-17-0 29-1 7-00 0 SEA SEAL L DRAIN SYSTEM SYSTEM PRESEN PRESENTAT TATION ION CONTENTS: General Forward system Aft system Tank drainage

2 L E V E L

0 0 2 4 D F U

2 0 A A Y H U M T


29-17-00



29 HYDRAULIC POWER

SEAL DRAIN SYSTEM PRESENTATION GENERAL The seal drain system collects hydraulic fluid from the seal drains of some hydraulic components. The hydraulic fluid which may escape from some hydraulic components (leak or abnormal condition such as hydraulic reservoir overfilling or internal overpressure) is drained into collector tanks. FORWARD SYSTEM The forward system consists of flexible hoses and rigid pipes connected to a collector tank. The forward collector tank is attached between the frames 40 and 41 in the yellow hydraulic compartment. The components which are drained into the forward collector tank located in the yellow hydraulic compartment compartment are:

-

Blue electric pump Yellow electric pump Slats Power Control Unit (PCU) Green hydraulic reservoir Yellow hydraulic reservoir

2 L E V E L

0 0 2 4 D F U

1 0 T 2 0 A A Y H U M T


29-17-00



29 HYDRAULIC POWER

2 L E V E L

0 0 2 4 D F U

1 0 P 2 0 A A Y H U M T

SEAL DRAIN SYSTEM PRESENTATION - GENERAL - FORWARD SYSTEM EFFECTIVITY EFFECTIVITY ALL

29-17-00



29 HYDRAULIC POWER

SEAL DRAIN SYSTEM PRESENTATION AFT SYSTEM The aft system consists of flexible hoses and rigid pipes connected to a collector tank. The aft collector tank is attached to the right side of the keel beam in the main hydraulic compartment. The components which are drained into the aft collector located in the main landing gear compartment are:

-

Flaps Power Control Unit (PCU) Power Transfer Unit (PTU) Constant Speed Motor / Generator (CSM / G) Blue hydraulic reservoir

2 L E V E L

0 0 2 4 D F U

2 0 T 2 0 A A Y H U M T


29-17-00



29 HYDRAULIC POWER

2 L E V E L

0 0 2 4 D F U

2 0 P 2 0 A A Y H U M T

SEAL DRAIN SYSTEM PRESENTATION - AFT SYSTEM EFFECTIVITY EFFECTIVITY ALL

29-17-00



29 HYDRAULIC POWER

SEAL DRAIN SYSTEM PRESENTATION TANK DRAINAGE The system is designed so that the hydraulic fluid drains into the collector tanks by gravity. The collector tanks attached to the aircraft structure by means of quick release clamps must be removed for drainage. Each collector tank, which has a capacity of 0.75 liters (0.19 US Gal), must be emptied and cleaned at regular intervals.

2 L E V E L

0 0 2 4 D F U

3 0 T 2 0 A A Y H U M T


29-17-00



29 HYDRAULIC POWER

2 L E V E L

0 0 2 4 D F U

3 0 P 2 0 A A Y H U M T

SEAL DRAIN SYSTEM PRESENTATION - TANK DRAINAGE EFFECTIVITY EFFECTIVITY ALL

29-17-00



29 HYDRAULIC POWER


2 L E V E L

0 0 2 4 D F U

2 0 A A Y H U M T


29-17-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-11-0 29-1 1-00 0 GRE GREEN EN SYSTEM SYSTEM COMP COMPONE ONENTS NTS CONTENTS: Leakage Measurement Manifold High Pressure Manifold Engine Driven Pump 1 EDP 1 Case Drain Filter EDP 1 Pressure Switch Engine Fire Valve Reservoir Return Manifold Ground Service Panel

3 L E V E L

0 0 2 4 D F U

2 0 I D Y H U M T


29-11-00

Page Page87 1 Nov 30/99


29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS SAFETY PRECAUTIONS

LEAKAGE MEASUREMENT MANIFOLD

WARNING: When using the manual manual d depressuriz epressurization ation v valve alve put on hand and eye protection and keep away from the outlet of the valve. The air can be hot and contain particles of dust and/or hydraulic fluid.

IDENTIFICATION FIN : 1146 GM LOCATION ZONE : 145 DESCRIPTION The ground leakage measurement manifolds manifolds of the three hydraulic systems are identical.The manifold has two pairs of inlet ports, identified as A and B. As only one pair is used, the other one is sealed.The three outlet ports are identified as C, D and E.The 2-way spool valves are manually opened for ground maintenance tasks only.

3 L E V E L

0 0 2 4 D F U

1 0 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 2 0 I D Y H U M T

GREEN SYSTEM COMPONENTS - LEAKAGE MEASUREMENT MANIFOLD EFFECTIVITY EFFECTIVITY ALL

29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS HIGH PRESSURE MANIFOLD

FILTER

IDENTIFICATION FIN: 1011GM


LOCATION ZONE: 147

LOCATION ZONE: 147

DESCRIPTION The HP manifold has ports which connect it to the other parts:

DESCRIPTION The filter element is of the replaceable type. It cannot be cleaned. The filter also includes a clogging indicator which has to be reset manually after replacement of the filter element. An anti-spill device is also included in the filter in order to prevent any hydraulic fluid flow when the filter element and the bowl are removed. The HP filter has a filtration rating of 15 microns.

- a system pressure inlet from pumps and ground supply

- Two outlets to the Leak Measurement System Manifold

- One outlet and one inlet to the PTU manifold - One connection to the accumulator/cargo doors selector valve/brake manifold.

3 L E V E L

0 0 2 4 D F U

2 0 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 0 P 2 0 I D Y H U M T

GREEN SYSTEM COMPONENTS - HP MANIFOLD COMPONENTS EFFECTIVITY EFFECTIVITY ALL

29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS PRESSURE TRANSDUCER

FLUID SAMPLING VALVE

IDENTIFICATION FIN: 1065GN


LOCATION ZONE: 146

LOCATION ZONE: 146

DESCRIPTION The pressure transducer measures the system pressure and sends signals to the SDAC SDAC for ECAM display and to ELAC 1/2 for Flight Control System.

DESCRIPTION The sampling valve makes it possible to take samples of fluid for analysis with the system system at full pressure. The end cap provided with a slot is used as a tool to open the valve.

3 L E V E L

0 0 2 4 D F U

3 0 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 0 P 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS PRESSURE RELIEF VALVE

LEAKAGE SOLENOID VALVE


IDENTIFICATION FIN: 1150GP

LOCATION ZONE: 146

LOCATION ZONE: 146

DESCRIPTION The pressure relief valve protects the system from overpressure.It overpressure. It opens at 237 bar (3436 psi) and closes at 220 bar (3190 psi).

DESCRIPTION The leakage solenoid valve controls the fluid flow to the leakage measurement system manifold.It is normally open. During ground operation of the system, system, the valve is closed to connect the HP outlet outlet port to the return circuit and thus shuts the HP inlet port.

3 L E V E L

0 0 2 4 D F U

4 0 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

4 0 P 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS PRESSURE SWITCHES

ACCUMULATOR

IDENTIFICATION FIN: 1151GN, 10CE-2


LOCATION ZONE: 146

LOCATION ZONE: 146

DESCRIPTION The two pressure switches monitor the system pressure, and send a signal at both low and high pressure. The pressure switch 1151GN sends information to the FWC, the flight control system and the auto flight system. The pressure switch 10CE-2 sends information to the flight control system only.

DESCRIPTION The accumulator is of the cylindrical type with an internal bladder. The metal body has an outer layer of kevlar to make it stronger. The accumulator is o precharged with nitrogen to 130bar (1885psi) at 20 C. It holds 1liter (0,26 US gal) of usable usable fluid when it is full. The bladder is made of rubber and isolates the nitrogen gas from the hydraulic fluid. A nitrogen charging valve (shrader type) and a direct reading pressure gage are installed on the accumulator.

3 L E V E L

0 0 2 4 D F U

5 0 T 2 0 I D Y H U M T


29-11-00

Page Page 96 10 Nov 30/99


29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

5 0 P 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS ENGINE DRIVEN PUMP 1 IDENTIFICATION FIN: 1030GK LOCATION ZONE: 435 DESCRIPTION The Engine Driven Pump (EDP), which which is of the variable displacement type, is attached to the accessory gearbox on the bottom of the engine via keyhole slots and installation bolts. The suction line has a quick disconnect self-sealing coupling to facilitate pump removal/installation.

3 L E V E L

0 0 2 4 D F U

6 0 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

6 0 P 2 0 I D Y H U M T

GREEN SYSTEM COMPONENTS - ENGINE DRIVEN PUMP EFFECTIVITY EFFECTIVITY ALL

29-11-00



29 HYDRAULIC POWER

GREEN HYDRAULIC COMPONENTS EDP 1 CASE DRAIN FILTER IDENTIFICATION FIN: 1084GM LOCATION ZONE: 435 DESCRIPTION The filter is equipped with a pop-out clogging indicator. It operates when the differential pressure across the filter is 87 ± 8.7 psi (6± 0.6 bar).There is no bypass device if the filter filter element is clogged. The filtration rating is 15 microns.

3 L E V E L

0 0 2 4 D F U

7 0 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

7 0 P 2 0 I D Y H U M T

GREEN SYSTEM COMPONENTS - EDP 1 CASE DRAIN FILTER EFFECTIVITY EFFECTIVITY ALL

29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS EDP 1 PRESSURE SWITCH

ENGINE FIRE VALVE

IDENTIFICATION FIN: 1074GK

IDENTIFICATION FIN: 1046GK

LOCATION ZONE: 435

LOCATION ZONE: 574

DESCRIPTION The switch monitors the output pressure of the engine driven pump.It sends a low pressure signal at 1740 ± 72.5 psi (120 ± 5 bar pressure decreasing) and stops the signal when the pressure reaches 2200 psi (152 bar pressure increasing).

DESCRIPTION The fire valve, which is of the ball valve type is installed in the LH wing between the rear spar and the false rear spar inboard of the pylon. The electric motor is a 28 VDC type motor.An indicator, visible through a window provided in the valve housing, shows the valve position (open or shut).

3 L E V E L

0 0 2 4 D F U

8 0 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

8 0 P 2 0 I D Y H U M T

GREEN SYSTEM COMPONENTS - EDP 1 PRESSURE SWITCH AND ENGINE FIRE VALVE EFFECTIVITY EFFECTIVITY ALL

29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS RESERVOIR IDENTIFICATION FIN: 1000GQ LOCATION ZONE: 148 DESCRIPTION The reservoir is made of two moulded light alloy sections welded together. together. The top of the reservoir has a manifold for the components of the air pressurization system. The reservoir is divided into two parts. The lower part is always full. A transfer tube enables hydraulic fluid exchange with the upper part which constitutes constitutes the fluid reserve.

3 L E V E L

0 0 2 4 D F U

9 0 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

9 0 P 2 0 I D Y H U M T

GREEN SYSTEM COMPONENTS - RESERVOIR EFFECTIVITY EFFECTIVITY ALL

29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS DRAIN VALVE

LOW LEVEL SWITCH


IDENTIFICATION FIN: 1062GQ

LOCATION ZONE: 148

LOCATION ZONE: 148

DESCRIPTION A hollow type drain valve is installed at the bottom of the reservoir. The valve is opened by turning (counter-clockwise) (counter-cloc kwise) and pushing the bushing/valve pin assembly. Then the bushing is rotated clockwise to lock the valve in the open position.

DESCRIPTION The low level switch is a float operated switch which includes a relay and a magnet which keeps the contacts contacts open when the float is high. A metal shroud around the float operates as a damper for small changes in the fluid level.

3 L E V E L

0 0 2 4 D F U

0 1 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

0 1 P 2 0 I D Y H U M T

GREEN SYSTEM COMPONENTS - RESERVOIR COMPONENTS EFFECTIVITY EFFECTIVITY ALL

29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS AIR PRESSURE GAGE

AIR RELIEF VALVE



LOCATION ZONE: 148

LOCATION ZONE: 148

DESCRIPTION The reservoir pressure gage displays displays the air pressure in a range of 0-75 psi (0-5 bar).

DESCRIPTION The air relief valve relieves pressure to the atmosphere in the event of a system overpressurization (77 psi/5.3 bar).

AIR PRESSURE SWITCH IDENTIFICATION FIN: 1384GH LOCATION ZONE: 148 DESCRIPTION The air pressure switch closes when the pressure decreases to 22 ± 1.5 psi (1.5 ± 0.1 bar).The contacts open when the pressure increases increases to 25 psi (1.7 bar).

3 L E V E L

0 0 2 4 D F U

1 1 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 1 P 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS LEVEL TRANSMITTER IDENTIFICATION FIN: 1001GQ LOCATION ZONE: 148 DESCRIPTION The level transmitter permits: - Direct reading of the hydraulic fluid level. - Transmission of the level indication indication to the cockpit. It includes an arm fitted with with a float which drives a gear train on a magnetic coupling. The synchro transmitter shaft supports supports a pointer to permit direct reading of the fluid level.

3 L E V E L

0 0 2 4 D F U

2 1 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 1 P 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS RETURN MANIFOLD

TEMPERATURE TRANSMITTER

The LP return manifold is the connection point for return lines from different parts of the LP system. The LP filter and a temperature transmitter are directly connected to the manifold.

IDENTIFICATION FIN: 1381GR LOCATION ZONE: 146

LP RETURN FILTER IDENTIFICATION FIN: 1002GM LOCATION ZONE: 148 DESCRIPTION The LP RETURN filter has a filtration rating of 3 microns. The bypass device device allows fluid to go from the inlet to the outlet without filtration.

DESCRIPTION The temperature transmitter connected to the SDAC comprises:

- a temperature switch which operates at 95 ± 2.2°C (203

± 4°F).

- two temperature transmitters which measure fluid temperature between -55°C (+131°F) and 120°C (248°F).

3 L E V E L

0 0 2 4 D F U

3 1 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 1 P 2 0 I D Y H U M T

GREEN SYSTEM COMPONENTS - RETURN MANIFOLD EFFECTIVITY EFFECTIVITY ALL

29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS GROUND SERVICE PANEL

RESERVOIR QUANTITY INDICATOR

GROUND TEST CONNECTORS


IDENTIFICATION FIN: 1008GM, 1006GM LOCATION ZONE: 197 DESCRIPTION The delivery ground connector (1008GM) and suction ground connector (1006GM) are of the self-sealing type.

LOCATION ZONE: 197 DESCRIPTION The indicator has three coloured scales, one for each reservoir. Three lights: two Light Emitting Diodes (LEDs) for green and yellow, and filament lamp for blue, indicate which system the indicator is set to.

RESERVOIR DEPRESSURIZATION VALVE IDENTIFICATION FIN: 1087GM LOCATION ZONE: 197

3

DESCRIPTION The reservoir depressurization valve is a manually operated 2-way valve. It is normally closed by spring force. It opens by turning the cap assembly or by connecting the ground depressurization coupling.

L E V E L

0 0 2 4 D F U

4 1 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

4 1 P 2 0 I D Y H U M T

GREEN SYSTEM COMPONENTS - GROUND SERVICE PANEL EFFECTIVITY EFFECTIVITY ALL

29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS RESERVOIR FILLING SELECTOR

FILLING FILTER



LOCATION ZONE: 197

LOCATION ZONE: 197

DESCRIPTION The reservoir filling selector selector valve assembly has two main parts:

DESCRIPTION The mechanical clogging indicator of the HP filling filter has a thermal lock which inhibits its operation operation when the fluid temperature decreases to 0°C (32°F). The thermal lock releases when the fluid temperature increases to 30°C (86°F).

- the hydraulic selector unit which controls the flow of fluid to the reservoirs.

- the electrical switch unit which controls the electrical supply to the quantity indicator.

3 L E V E L

0 0 2 4 D F U

4 1 T 2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

GREEN SYSTEM COMPONENTS FILLING HAND PUMP IDENTIFICATION FIN: 1009GM LOCATION ZONE: 197 DESCRIPTION The Hand Pump is a two stroke type pump and supplies 40 ml per stroke at a low pressure or 10 ml per stroke stroke at a high pressure. It is interchangeable with that of the yellow system. The hand pump includes a manually operated filling valve which is also used as a flexible hose connector. connector. RESERVOIR FILLING CONNECTOR IDENTIFICATION FIN: 1007GM LOCATION ZONE: 197

3 L E V E L

0 0 2 4 D F U

4 1 T 2 0 I D Y H U M T

DESCRIPTION The reservoir filling connector is half of a self-sealing quick-disconnect coupling. The filling valve also incorporates a filter and a check valve.


29-11-00



29 HYDRAULIC POWER


3 L E V E L

0 0 2 4 D F U

2 0 I D Y H U M T


29-11-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-12-0 29-1 2-00 0 BLU BLUE E SYSTEM SYSTEM COMP COMPONE ONENTS NTS CONTENTS: Leakage Measurement Manifold High Pressure Manifold Electric Pump Protection Electric Pump Ram Air Turbine Reservoir Return Manifold Ground Service Panel

3 L E V E L

0 0 2 4 D F U

2 0 J D Y H U M T


29-12-00

Page 119 Page 1 Nov 30/99


29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS SAFETY PRECAUTIONS


WARNING: When using the the manual manual de depressuriza pressurization tion valve, put on hand and eye protection and and keep away from the outlet of the valve. The air can be hot and contain particles of dust and/or hydraulic fluid.

IDENTIFICATION FIN: 2146GM LOCATION ZONE: 195 DESCRIPTION The supply of all the consumers other than the slat motor and the CSM/G goes through the leakage measurement manifold. The ground leakage measurement manifolds manifolds of the three hydraulic systems are identical. The manifold has two pairs of inlet ports identified as A and B. As only one pair is used, the other one is sealed. The three outlet ports are identified as C, D and E. The 2-way spool valves are manually opened for ground maintenance maintenance tasks only.

3 L E V E L

0 0 2 4 D F U

1 0 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 2 0 J D Y H U M T

BLUE SYSTEM COMPONENTS - LEAKAGE MEASUREMENT MANIFOLD EFFECTIVITY EFFECTIVITY ALL

29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS HIGH PRESSURE MANIFOLD IDENTIFICATION FIN: 2011GM LOCATION ZONE: 195 DESCRIPTION The supply of most of the consumers goes through the HP manifold. The HP manifold is installed in the blue hydraulic compartment.

3 L E V E L

0 0 2 4 D F U

2 0 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 0 P 2 0 J D Y H U M T

BLUE SYSTEM COMPONENTS - HP MANIFOLD EFFECTIVITY EFFECTIVITY ALL

29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS PRIORITY VALVE




LOCATION ZONE: 195

LOCATION ZONE: 195

DESCRIPTION The priority valve ensures sure that all available hydraulic pressure is sent to the primary flight controls if the pressure in the system is reduced.


3 L E V E L

0 0 2 4 D F U

3 0 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 0 P 2 0 J D Y H U M T

BLUE SYSTEM COMPONENTS - BLUE HP MANIFOLD EFFECTIVITY EFFECTIVITY ALL

29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS LEAKAGE SOLENOID VALVE

PRESSURE SWITCHES



LOCATION ZONE: 195

LOCATION ZONE: 195

DESCRIPTION The leakage solenoid valve controls the flow of the fluid to the leakage measurement system manifold. It is normally open. During ground operation of the system, the solenoid valve can be operated from the maintenance panel 50VU in the flight compartment, to isolate the primary flight users. In this case, the valve is closed to connect the HP outlet port to the return port and shut the HP inlet port.

DESCRIPTION Two pressure switches send a low pressure signal at 1450 ± 72.5 psi (95 ± 5 bar) (pressure decreasing) and send a high pressure signal at 1750 psi (120 bar) (pressure increasing). The pressure switch 2151GN sends information to the FWC and the Flight Control System. The pressure switch 10CE-1 sends information to the Flight Control System only.

PRESSURE RELIEF VALVE IDENTIFICATION FIN: 2063GM LOCATION ZONE: 195 3 L E V E L

0 0 2 4 D F U

4 0 T 2 0 J D Y H U M T

DESCRIPTION The pressure relief valve protects the system from overpressure. It opens at 3436 psi (237 bar) and closes at 3190 psi (220 bar).


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

4 0 P 2 0 J D Y H U M T

BLUE SYSTEM COMPONENTS EFFECTIVITY EFFECTIVITY ALL

29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS PRESSURE TRANSDUCER

ACCUMULATOR



LOCATION ZONE: 195

LOCATION ZONE: 195

DESCRIPTION The pressure transducer measures the system pressure and sends signals to the ELAC 1/2 for Flight Control System and to the SDAC for ECAM display. display. The transducer is a sealed unit.

DESCRIPTION The accumulator is of the cylindrical type with an internal bladder. The metal body has an outer layer of kevlar to make it stronger. The accumulator is precharged with nitrogen to 1885 psi (130 bar) at 20°C. The bladder is made of rubber and isolates isolates the nitrogen gas from the hydraulic fluid. It holds 1 liter (0,26 US gal) of usable fluid when it is full.

HP FILTER IDENTIFICATION FIN: 2048GM LOCATION ZONE: 195

3 L E V E L

0 0 2 4 D F U

5 0 T 2 0 J D Y H U M T

DESCRIPTION The filter element is of the replaceable type. It cannot be cleaned. The filter also includes includes a clogging indicator which has to be reset manually after replacement of the filter element. An anti-spill device is also included in the filter in order to prevent any hydraulic fluid flow when the filter element and the bowl are removed.


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

5 0 P 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS ELECTRIC PUMP PROTECTION IDENTIFICATION FIN: 2706GJ, 2707GJ LOCATION ZONE: 126 DESCRIPTION A current transformer and a phase unbalance detector provide protection if if there is a fault in the electric pump motor or in the supply. The current transformer compares the flow of current in each phase of the AC motor supply. If a difference is detected, the current transformer sends a signal to the phase unbalance detector which stops the pump motor. A test pushbutton is provided on the phase unbalance detector to simulate current transformer operation. An indicator light comes on to show that both units have operated correctly.

3 L E V E L

0 0 2 4 D F U

6 0 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

6 0 P 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS ELECTRIC PUMP

CASE DRAIN FILTER

IDENTIFICATION FIN: 2075GJ


LOCATION ZONE: 195

LOCATION ZONE: 195

DESCRIPTION The electric pump of the blue hydraulic system is installed in the blue hydraulic compartment. It is interchangeable with the yellow electric pump.

DESCRIPTION The case drain filter is equipped with a pop-out clogging indicator. It operates when the differential pressu pre ssure re across the filter is 87 ± 8.7psi (6 ± 0.6 bar). There is no by-pass device if the filter filter element is clogged. The filtration rating is 15 microns.

3 L E V E L

0 0 2 4 D F U

7 0 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

7 0 P 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS PRESSURE SWITCH

PULSATION DAMPENER

IDENTIFICATION FIN: 2074GJ


LOCATION ZONE: 195

LOCATION ZONE: 195

DESCRIPTION The pressure switch is installed downstream of the electric pump to monitor the output pressure. pressure. It sends a signal to the ECAM and a local warning to display the blue pump low pressure warning.

DESCRIPTION The pulsation dampener, which is a metal sphere, is installed in the pump outlet line to remove pulses from the HP flow.

3 L E V E L

0 0 2 4 D F U

8 0 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

8 0 P 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS RAM AIR TURBINE (RAT)

RAT ACTUATOR

IDENTIFICATION FIN: 2GE

IDENTIFICATION FIN: 1GE

LOCATION ZONE: 195

LOCATION ZONE: 195

DESCRIPTION The RAT is installed in the LH belly fairing. It is extended into the airflow by by an actuator. RAT retraction is only possible when the aircraft is on ground. The RAT is a constant speed unit with two 39.5 inch (1m) variable pitch blades. The RAT is extended and locked in position by means of a RAT actuator. A RAT de-icing device prevents icing conditions conditions at the turbine hub by producing heat, which keeps the nose temperature to 3 deg.C minimum. Heat is produced by the eddy current device composed of two basic components: an aluminium plate and an even number of magnets.

DESCRIPTION The RAT actuator is installed between the aircraft structure and the RAT leg assembly. It is used for RAT extension and retraction. It is extended by spring force and retracted by hydraulic power. The jack is mechanically locked in both the extended and retracted positions. RAT extension is controlled by two solenoids located at the top of the actuator. A ground retraction retraction module controls the retraction of the actuator.

3 L E V E L

0 0 2 4 D F U

9 0 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

9 0 P 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS RESERVOIR IDENTIFICATION FIN: 2000GQ LOCATION ZONE: 197 DESCRIPTION The inside of the reservoir includes baffles which give a supply of fluid under negative "g" conditions. The baffles also form an anti-emulsion device which limits the emulsion when there there is a large return flow.

3 L E V E L

0 0 2 4 D F U

0 1 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

0 1 P 2 0 J D Y H U M T

BLUE SYSTEM COMPONENTS - RESERVOIR EFFECTIVITY EFFECTIVITY ALL

29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS AIR PRESSURE GAGE

AIR PRESSURE SWITCH


IDENTIFICATION FIN: 2384GH

LOCATION ZONE: 197

LOCATION ZONE: 197

DESCRIPTION The reservoir pressure gage displays displays the air pressure in a range of 0-75 psi (0-5.15 bar).

DESCRIPTION The air pressure switch closes when the pressure decreases to 22 psi (1.5 bar).The contact opens when the pressure increases to 25 psi (1.7 bar). AIR RELIEF VALVE IDENTIFICATION FIN: 2005GM LOCATION ZONE: 197 DESCRIPTION The air relief valve relieves pressure to the atmosphere in the event of a system overpressurization (77 psi - 5.3 bar).

3 L E V E L

0 0 2 4 D F U

1 1 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 1 P 2 0 J D Y H U M T

BLUE SYSTEM COMPONENTS - RESERVOIR COMPONENTS EFFECTIVITY EFFECTIVITY ALL

29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS LOW LEVEL SWITCH

LEVEL TRANSMITTER



LOCATION ZONE: 197

LOCATION ZONE: 197

DESCRIPTION The low level switch is a float operated switch which includes a relay and a magnet which keeps the contacts contacts open when the float is high. A metal shroud around the float operates as a dampener.

DESCRIPTION It gives a visual indication and sends a signal to the SDAC and to the reservoir quantity indicator on the green ground service panel for fluid content indication.

3 L E V E L

0 0 2 4 D F U

2 1 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 1 P 2 0 J D Y H U M T

BLUE SYSTEM COMPONENTS - RESERVOIR COMPONENTS EFFECTIVITY EFFECTIVITY ALL

29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS RETURN MANIFOLD


FILTER

IDENTIFICATION FIN: 2381GR

IDENTIFICATION FIN: 2002GM LOCATION ZONE: 197 DESCRIPTION The LP return filter has a filtration rating of 3 microns. The bypass device allows fluid to go from the inlet to the outlet without filtration.

LOCATION ZONE: 197 DESCRIPTION The temperature transmitter connected to the SDAC comprises: operates at 95 ± 2°C 2°C - a temperature switch which operates (203

± 4°F)

- two temperature transmitters which measure fluid temperature between - 55°C (+131°F) and 120°C (248°F).

3 L E V E L

0 0 2 4 D F U

3 1 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 1 P 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS GROUND SERVICE PANEL

RESERVOIR DRAIN VALVE

RESERVOIR DEPRESSURIZATION VALVE


IDENTIFICATION FIN: 2087GM LOCATION ZONE: 197 DESCRIPTION The reservoir depressurization valve is a manually operated 2-way valve. It is closed by spring force. It opens by turning the cap assembly or by connecting the ground depressurization coupling.

LOCATION ZONE: 197 DESCRIPTION A hollow type drain valve is installed on the service panel. The valve is opened by turning (counter-clockwise) (counter-clockw ise) and pushing the bushing/valve pin assembly.Then, the bushing is rotated clockwise to lock the valve in the open position. GROUND CONNECTORS IDENTIFICATION FIN: 2006GM, 2008GM LOCATION ZONE: 197 DESCRIPTION The delivery ground connector (2008 GM) and suction ground connector (2006 GM) are of the self-sealing type.

3 L E V E L

0 0 2 4 D F U

4 1 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

4 1 P 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

BLUE SYSTEM COMPONENTS RAT GROUND CONTROL PANEL IDENTIFICATION FIN: 3GE LOCATION ZONE: 197 DESCRIPTION The RAT ground control panel comprises the controls to stow the RAT. The GROUND CHECK connector is the connector for the RAT ground test equipment. The guarded ARM switch supplies electrical power to the STOW/RESET selector switch. Indication lights are checked by using the LAMP test pushbutton. The indication lights come on during the RAT retraction. The RAT control panel is protected by means of of a cover provided with a window so that the indication lights can be seen with the cover in the closed position.

3 L E V E L

0 0 2 4 D F U

5 1 T 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

5 1 P 2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER


3 L E V E L

0 0 2 4 D F U

2 0 J D Y H U M T


29-12-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-13-0 29-1 3-00 0 YEL YELLOW LOW SYSTE SYSTEM M COMPONE COMPONENTS NTS CONTENTS: Leakage Measurement Manifold High Pressure Manifold Electric Pump Protection Electric Pump Engine Driven Pump 2 EDP 2 Case Drain Filter EDP 2 Pressure Switch Engine Fire Valve Reservoir Return Manifold Ground Service Panel

3 L E V E L

0 0 2 4 D F U

4 0 K D Y H U M T


29-13-00

Page 151 Page 1 Jul 31/98


29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS SAFETY PRECAUTIONS


WARNING: When using the manual manual d depressuriz epressurization ation v valve alve put on hand and eye protection and keep away from the outlet of the valve. The air can be hot and contain particles of dust and/or hydraulic fluid.

IDENTIFICATION FIN : 3146 GM LOCATION ZONE : 196 DESCRIPTION The ground leakage measurement manifolds manifolds of the three hydraulic systems are identical.The manifold has two pairs of inlet ports, identified as A and B. As only one pair is used, the other one is sealed.The three outlet ports are identified as C, D and E.The 2-way spool valves are manually opened for ground maintenance tasks only.

3 L E V E L

0 0 2 4 D F U

1 0 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 4 0 K D Y H U M T

YELLOW SYSTEM COMPONENTS - LEAKAGE MEASUREMENT MANIFOLD EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS HIGH PRESSURE MANIFOLD

FILTER



LOCATION ZONE: 196

LOCATION ZONE: 196

DESCRIPTION The HP manifold has ports which connect it to the other parts:

DESCRIPTION The filter element is of the replaceable type. It cannot be cleaned. The filter also includes a clogging indicator which has to be reset manually after replacement of the filter element. An anti-spill device is also included in the filter in order to prevent any hydraulic fluid flow when the filter element and the bowl are removed. The HP filter has a filtration rating of 15 microns.

- a system pressure inlet from pumps and ground supply

- Two outlets to the Leak Measurement System Manifold

- One outlet and one inlet to the PTU manifold - One connection to the accumulator/cargo doors selector valve/brake manifold

3 L E V E L

0 0 2 4 D F U

2 0 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 0 P 4 0 K D Y H U M T

YELLOW SYSTEM COMPONENTS - HP MANIFOLD EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS PRESSURE TRANSDUCER




LOCATION ZONE: 196

LOCATION ZONE: 196

DESCRIPTION The pressure transducer measures the system pressure and sends signals to the SDAC SDAC for ECAM display and to ELAC 1/2 for Flight Control System.


3 L E V E L

0 0 2 4 D F U

3 0 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 0 P 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS PRESSURE RELIEF VALVE

LEAKAGE SOLENOID VALVE



LOCATION ZONE: 196

LOCATION ZONE: 196

DESCRIPTION The pressure relief valve protects the system from overpressure.It overpressure. It opens at 237 bar (3436 psi) and closes at 220 bar (3190 psi).

DESCRIPTION The leakage solenoid valve controls the fluid flow to the leakage measurement system manifold.It is normally open. During cargo doors operation operation the valve is closed to avoid hydraulic pressure to the flight controls users.

3 L E V E L

0 0 2 4 D F U

4 0 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

4 0 P 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS PRESSURE SWITCHES

ACCUMULATOR



LOCATION ZONE: 196

LOCATION ZONE: 196

DESCRIPTION The two pressure switches monitor the system pressure, and send a signal at both low and high pressure. The pressure switch 3151GN sends information to the FWC, the flight control system and the auto flight system. The pressure switch 10CE-3 sends information to the flight control system only.

DESCRIPTION The accumulator is of the cylindrical type with an internal bladder. The metal body has an outer layer of kevlar to make it stronger. The accumulator is o precharged with nitrogen to 130bar (1885psi) at 20 C. It holds 1liter (0,26 US gal) of usable usable fluid when it is full. The bladder is made of rubber and isolates the nitrogen gas from the hydraulic fluid. A nitrogen charging valve (shrader type) and a direct reading pressure gage are installed on the accumulator.

3 L E V E L

0 0 2 4 D F U

5 0 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

5 0 P 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS ELECTRIC PUMP PROTECTION IDENTIFICATION FIN: 3807GX, 3808GX LOCATION ZONE: 126 DESCRIPTION A Current Transformer and a Phase Unbalance Detector give protection if there is a fault in the electric pump motor or in the supply.The Current Transformer compares the flow of current in each phase of the AC motor supply. If a difference is detected the Current Transformer sends a signal to the phase unbalance detector which stops the supply of electrical power to the electric pump. A test pushbutton is provided on the Phase Unbalance Detector to simulate a malfunction. An indicator indicator light comes on to show that both units have operated correctly.

3 L E V E L

0 0 2 4 D F U

6 0 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

6 0 P 4 0 K D Y H U M T

YELLOW SYSTEM COMPONENTS - ELECTRIC PUMP PROTECTION EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS ELECTRIC PUMP IDENTIFICATION FIN: 3075GX LOCATION ZONE: 196 DESCRIPTION The electric pump assembly includes an electrical motor (115 VAC - 400 Hz - 3 phases), a pump inlet impeller a piston type hydraulic pump and a blower.

3 L E V E L

0 0 2 4 D F U

7 0 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

7 0 P 4 0 K D Y H U M T

YELLOW SYSTEM COMPONENTS - ELECTRIC PUMP EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS ENGINE DRIVEN PUMP 2 IDENTIFICATION FIN: 3030GD LOCATION ZONE: 445 DESCRIPTION The Engine Driven Pump (EDP), which which is of the variable displacement type, is attached to the accessory gearbox on the bottom of the engine via keyhole slots and installation bolts. The suction line has a quick disconnect self-sealing coupling to facilitate pump removal/installation.

3 L E V E L

0 0 2 4 D F U

8 0 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

8 0 P 4 0 K D Y H U M T

YELLOW SYSTEM COMPONENTS - ENGINE DRIVEN PUMP EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER

YELLOW HYDRAULIC COMPONENTS EDP 2 CASE DRAIN FILTER IDENTIFICATION FIN: 3084GM LOCATION ZONE: 445 DESCRIPTION The filter is equipped with a pop-out clogging indicator. It operates when the differential pressure across the filter is 87 ± 8.7 psi (6± 0.6 bar).There is no bypass device if the filter filter element is clogged. The filtration rating is 15 microns.

3 L E V E L

0 0 2 4 D F U

9 0 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

9 0 P 4 0 K D Y H U M T

YELLOW SYSTEM COMPONENTS - EDP 2 CASE DRAIN FILTER EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS EDP 2 PRESSURE SWITCH

ENGINE FIRE VALVE

IDENTIFICATION FIN: 3074GD

IDENTIFICATION FIN: 3046GD

LOCATION ZONE: 445

LOCATION ZONE: 674

DESCRIPTION The switch monitors the output pressure of the engine driven pump.It sends a low pressure signal at 1740 ± 72.5 psi (120 ± 5 bar pressure decreasing) and stops the signal before the pressure reaches 2200 psi (152 bar pressure increasing).

DESCRIPTION The fire valve, which is of the ball valve type is installed in the RH wing between the rear spar and the false rear spar inboard of the pylon. The electric motor is a 28 VDC type motor.An indicator, visible through a window provided in the valve housing, shows the valve position (open or shut).

3 L E V E L

0 0 2 4 D F U

0 1 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

0 1 P 4 0 K D Y H U M T

YELLOW SYSTEM COMPONENTS - EDP 2 PRESSURE SWITCH AND FIRE VALVE EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS RESERVOIR IDENTIFICATION FIN: 3000GQ LOCATION ZONE: 196 DESCRIPTION The reservoir is made of two moulded light alloy sections welded together. together. The top of the reservoir has a manifold for the components of the air pressurization system. The reservoir is divided into two parts. The lower part is always full. A transfer tube enables hydraulic fluid exchange with the upper part which constitutes constitutes the fluid reserve.

3 L E V E L

0 0 2 4 D F U

1 1 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 1 P 4 0 K D Y H U M T

YELLOW SYSTEM COMPONENTS - RESERVOIR EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS DRAIN VALVE

LOW LEVEL SWITCH



LOCATION ZONE: 196

LOCATION ZONE: 196

DESCRIPTION A hollow type drain valve is installed at the bottom of the reservoir. The valve is opened by turning (counter-clockwise) (counter-cloc kwise) and pushing the bushing/valve pin assembly. Then the bushing is rotated clockwise to lock the valve in the open position.

DESCRIPTION The low level switch is a float operated switch which includes a relay and a magnet which keeps the contacts contacts open when the float is high. A metal shroud around the float operates as a damper for small changes in the fluid level.

3 L E V E L

0 0 2 4 D F U

2 1 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 1 P 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS AIR PRESSURE GAGE

AIR RELIEF VALVE



LOCATION ZONE: 196

LOCATION ZONE: 196

DESCRIPTION The reservoir pressure gage displays displays the air pressure in a range of 0-75 psi (0-5 bar).

DESCRIPTION The air relief valve relieves pressure to the atmosphere in the event of a system overpressurization (77 psi/5.3 bar).

AIR PRESSURE SWITCH IDENTIFICATION FIN: 3384GM LOCATION ZONE: 196 DESCRIPTION The air pressure switch closes when the pressure decreases to 22 ± 1.5 psi (1.5 ± 0.1 bar).The contacts open when the pressure increases increases to 25 psi (1.7 bar).

3 L E V E L

0 0 2 4 D F U

3 1 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 1 P 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS LEVEL TRANSMITTER IDENTIFICATION FIN: 3001GQ LOCATION ZONE: 196 DESCRIPTION The level transmitter permits:

- Direct reading of the hydraulic fluid level. - Transmission of the level indication to the cockpit. It includes an arm fitted with with a float which drives a gear train on a magnetic coupling. The synchro transmitter shaft supports supports a pointer to permit direct reading of the fluid level.

3 L E V E L

0 0 2 4 D F U

4 1 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

4 1 P 4 0 K D Y H U M T

YELLOW SYSTEM COMPONENTS - RESERVOIR LEVEL TRANSMITTER EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS RETURN MANIFOLD


The LP return manifold is the connection point for return lines from different parts of the LP system. The LP filter and a temperature transmitter are directly connected to the manifold.

IDENTIFICATION FIN: 3381GR LOCATION ZONE: 196

LP RETURN FILTER IDENTIFICATION FIN: 3002GM LOCATION ZONE: 196 DESCRIPTION The LP RETURN filter has a filtration rating of 3 microns. The bypass device device allows fluid to go from the inlet to the outlet without filtration.

DESCRIPTION The temperature transmitter connected to the SDAC comprises:

- a temperature switch which operates at 95 ± 2.2°C (203

± 4°F).

- two temperature transmitters which measure fluid temperature between -55°C (+131°F) and 120°C (248°F).

3 L E V E L

0 0 2 4 D F U

5 1 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

5 1 P 4 0 K D Y H U M T

YELLOW SYSTEM COMPONENTS - RETURN MANIFOLD EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER

YELLOW SYSTEM COMPONENTS GROUND SERVICE PANEL

GROUND CONNECTORS

RESERVOIR DEPRESSURIZATION VALVE

IDENTIFICATION FIN: 3008GM, 3006GM

IDENTIFICATION FIN: 3087GM LOCATION ZONE: 198 DESCRIPTION The reservoir depressurization valve is a manually operated 2-way valve. It is normally closed by spring force. It opens by turning the cap assembly or by connecting the ground depressurization coupling.

LOCATION ZONE: 198 DESCRIPTION The delivery ground connector (3008GM) and suction ground connector (3006GM) are of the self-sealing type. CARGO DOOR HAND PUMP IDENTIFICATION FIN: 3009GM

CARGO DOOR SELECTOR VALVE IDENTIFICATION FIN: 2500MJ LOCATION ZONE: 198

LOCATION ZONE: 198 DESCRIPTION The hand pump is a two stage type pump and supplies 10 ml per stroke at a high high pressure or 40 ml per stroke at a low pressure. NOTE: The same hand pump lever lever (3270GM) (3270GM) is used for for yellow and green hand pump operation.

3 L E V E L

0 0 2 4 D F U

6 1 T 4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

6 1 P 4 0 K D Y H U M T

YELLOW SYSTEM COMPONENTS - GROUND SERVICE PANEL EFFECTIVITY EFFECTIVITY ALL

29-13-00



29 HYDRAULIC POWER


3 L E V E L

0 0 2 4 D F U

4 0 K D Y H U M T


29-13-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-14-00 29-14-00 HYDRAULIC HYDRAULIC RESERVOIR RESERVOIR PRESSURIZING PRESSURIZING SYSTEM COMPONENTS CONTENTS: Reservoir Pressurization Unit Restrictor

3 L E V E L

0 0 2 4 D F U

3 0 Z D Y H U M T


29-14-00



29 HYDRAULIC POWER

HYDRAULIC RESERVOIR PRESSURIZING SYSTEM COMPONENTS RESERVOIR PRESSURIZATION UNIT IDENTIFICATION FIN: 1360GM LOCATION ZONE: 195 DESCRIPTION The reservoir pressurization unit (R.P.U.) has three inlet ports, one for each supply source (HP air, LP air and ground connection). Outlet of the airflow is through a water separator which is fitted on the R.P.U. Also, a pressure pressure reducing valve is fitted on the R.P.U. Two filters are installed in the reservoir pressurization pressurizatio n unit. One is located in the filter bowl and the other one located in the water separator.

3 L E V E L

0 0 2 4 D F U

1 0 T 3 0 Z D Y H U M T


29-14-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 3 0 Z D Y H U M T

HYDRAULIC RESERVOIR PRESSURIZING SYSTEM COMPONENTS EFFECTIVITY EFFECTIVITY ALL

29-14-00



29 HYDRAULIC POWER

HYDRAULIC RESERVOIR PRESSURIZING SYSTEM COMPONENTS RESERVOIR PRESSURIZATION UNIT (CONTINUED) FILTER The filter, located in the filter bowl, is a non-cleanable filter element. element. It cleans the inlet air and has an indicator installed installed in front of the R.P.U. to show when the filter is clogged. WATER SEPARATOR The water separator receives supply air from the R.P.U. and then moves the air through the element. element. The element is a cleanable element which separates separates the water from the air. An automatic drain valve and a manual self-sealing drain valve are installed in order to drain the water to avoid freezing of the water. PRESSURE REDUCING VALVE A pressure reducing valve is fitted to the R.P.U. In normal operation, the delivery pressure of engine 1 has priority over the pressure supply from the pneumatic manifold. Pressure reducing valve outlet pressure : 50psi(3,5 bar).

3 L E V E L

0 0 2 4 D F U

RESERVOIR PRESSURIZATION GROUND CONNECTOR The connector is plunger-type valve. It is manually opened or closed by rotating the nut which moves the plunger. The cap prevents external contamination.

2 0 T 3 0 Z D Y H U M T


29-14-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 0 P 3 0 Z D Y H U M T

HYDRAULIC RESERVOIR PRESSURIZING SYSTEM COMPONENTS EFFECTIVITY EFFECTIVITY ALL

29-14-00



29 HYDRAULIC POWER

HYDRAULIC RESERVOIR PRESSURIZING SYSTEM COMPONENTS RESTRICTOR IDENTIFICATION FIN: 1392GM LOCATION ZONE: 476 DESCRIPTION The restrictor valve is installed installed in the HP air supply line from the left engine. It has a calibrated orifice which restricts the airflow. A filter element prevents contamination contamination of the valve.

3 L E V E L

0 0 2 4 D F U

3 0 T 3 0 Z D Y H U M T


29-14-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 0 P 3 0 Z D Y H U M T

HYDRAULIC RESERVOIR PRESSURIZING SYSTEM COMPONENTS - RESTRICTOR EFFECTIVITY EFFECTIVITY ALL

29-14-00



29 HYDRAULIC POWER


3 L E V E L

0 0 2 4 D F U

3 0 Z D Y H U M T


29-14-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-23-0 29-2 3-00 0 POW POWER ER TRANSFE TRANSFER R UNIT COMPON COMPONENT ENTS S CONTENTS: Power Transfer Unit (PTU) Yellow PTU Manifold Green PTU Manifold Isolation Coupling

3 L E V E L

0 0 2 4 D F U

3 0 G D Y H U M T


29-23-00

Page 193 Page 1 Sep 30/99


29 HYDRAULIC POWER

POWER TRANSFER UNIT COMPONENTS POWER TRANSFER UNIT (PTU)

SOLENOID VALVE


IDENTIFICATION FIN: 3112GL

LOCATION ZONE: 148

LOCATION ZONE: 147

COMPONENT DESCRIPTION There are three hydraulic connections on both sides of the PTU:

COMPONENT DESCRIPTION It is installed in the PTU supply line, this solenoid valve operates at the same time with with the other solenoid valve (1012GL) installed on the green PTU manifold. When the solenoid is energized the valve closes. When the solenoid valve is de-energized, the spool moves to open the valve.

- High Pressure - Low Pressure - Case drain The high pressure and case drain connections on the PTU are of the standard type union. Only the low pressure connections are self-sealing quick release couplings. YELLOW PTU MANIFOLD



LOCATION ZONE: 147

LOCATION ZONE: 148

COMPONENT DESCRIPTION The yellow priority valve is installed on the PTU manifold. It is used to isolate the secondary flight controls from pressure supply in case of low hydraulic pressure.

3 L E V E L

0 0 2 4 D F U

1 0 T 3 0 G D Y H U M T

PRIORITY VALVE

COMPONENT DESCRIPTION The yellow high pressure manifold is connected to the PTU through the yellow PTU manifold. The yellow PTU manifold also has a connection to the flap system.


29-23-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 3 0 G D Y H U M T

POWER TRANSFER UNIT COMPONENTS - PTU - YELLOW PTU MANIFOLD EFFECTIVITY EFFECTIVITY ALL

29-23-00



29 HYDRAULIC POWER

POWER TRANSFER UNIT COMPONENTS GREEN PTU MANIFOLD

PRIORITY VALVE



LOCATION ZONE: 146

LOCATION ZONE: 146

COMPONENT DESCRIPTION The green high pressure manifold is connected to the PTU through the green PTU manifold.

COMPONENT DESCRIPTION The green priority valve is installed on the PTU manifold. It is used to isolate the secondary flight controls from pressure supply in case of low hydraulic pressure.

SOLENOID VALVE IDENTIFICATION FIN: 1112GL LOCATION ZONE: 146 COMPONENT DESCRIPTION It is installed in the PTU supply line. When the solenoid is energized the valve closes. When the solenoid valve is de-energized, the spool moves to open the valve.

BRAKE SELECTOR VALVE IDENTIFICATION FIN: 23GG LOCATION ZONE: 146 COMPONENT DESCRIPTION It allows the normal braking system to be pressurized. pressurized. It is fitted to the Green PTU manifold.

3 L E V E L

0 0 2 4 D F U

2 0 T 3 0 G D Y H U M T


29-23-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 0 P 3 0 G D Y H U M T

POWER TRANSFER UNIT COMPONENTS - GREEN PTU MANIFOLD EFFECTIVITY EFFECTIVITY ALL

29-23-00



29 HYDRAULIC POWER

POWER TRANSFER UNIT COMPONENTS ISOLATION COUPLING IDENTIFICATION FIN: 3701GM LOCATION ZONE: 148 COMPONENT DESCRIPTION It is the only way to isolate the PTU for maintenance maintenance operations. There is no transfer of power between the two systems (green and yellow) when the isolation coupling is disconnected.

3 L E V E L

0 0 2 4 D F U

3 0 T 3 0 G D Y H U M T


29-23-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 0 P 3 0 G D Y H U M T

POWER TRANSFER UNIT COMPONENTS - ISOLATION COUPLING EFFECTIVITY EFFECTIVITY ALL

29-23-00



29 HYDRAULIC POWER


3 L E V E L

0 0 2 4 D F U

3 0 G D Y H U M T


29-23-00



29 HYDRAULIC POWER

29 - HYDRAULIC SYSTEM 29-14-0 29-1 4-00 0 RES RESERV ERVOIR OIR PRESSUR PRESSURIZA IZATIO TION N CONTENTS: Depressurization Operation Pressurization Operation

3 L E V E L

0 0 2 4 D F U

1 0 O D Y H U M T


29-14-00

Page 201 Page 1 Aug 31/98


29 HYDRAULIC POWER

RESERVOIR PRESSURIZATION DEPRESSURIZATION OPERATION Each hydraulic independently.

reservoir

can

be

depressurized

Open the ground service panel access door. In the cockpit, open, safety and tag the circuit breakers. To depressurize the hydraulic equipment may be used.

reservoir,

ground

If it is not, on the ground service panel, turn the assembly of the reservoir depressurization valve clockwise through 90 degrees. WARNING Pay attention, protect your hands and face from the air which comes out when you open reservoir manual depressurization valves. The air may be hot and contain hydraulic fluid.

3 L E V E L

0 0 2 4 D F U

1 0 T 1 0 O D Y H U M T

Reservoir air pressure can be monitored on the reservoir pressure gauge. Keep the depressurization valve open if it is necessary to depressurize a reservoir during a maintenance operation. This prevents accidental pressurization of a completed. Close the depressurization valve when the maintenance operation is completed.


29-14-00



29 HYDRAULIC POWER

RESERVOIR PRESSURIZATION PRESSURIZATION OPERATION To pressurize the reservoir, make depressurization valve is closed.

sure

that

the

Note that the three hydraulic reservoirs are pressurized through the air pressure manifold, thus they are pressurized at the same time. Open the blue hydraulic compartment door to gain access to the air pressure manifold. Remove the cap from the ground connector. Connect the pressurizing tool to the ground connector. Turn the nut to open the ground connector valve. Fill the reservoir with air until 50 psi is shown on the reservoir pressure gauge. Turn the nut to close the ground connector valve. Remove the pressurizing tool. Install the cap on the ground connector. 3 L E V E L

0 0 2 4 D F U

1 0 T 1 0 O D Y H U M T

Close the circuit breakers. Make sure that the work area is clean and clear of tools and other items and all access access panels are closed.


29-14-00



29 HYDRAULIC POWER

THIS PAGE LEFT INTENTIONALLY BLANK.

3 L E V E L

0 0 2 4 D F U

1 0 O D Y H U M T


29-14-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-16-0 29-1 6-00 0 RES RESERV ERVOIR OIR FIL FILLIN LING G CONTENTS: Precautions Installation Procedure Close-Up

3 L E V E L

0 0 2 4 D F U

1 0 P D Y H U M T


29-16-00

Page 205 Page 1 Oct 31/98


29 HYDRAULIC POWER

RESERVOIR FILLING PRECAUTIONS WARNING: WARN ING: If you get get the fluid fluid on your sk skin in or in in your eyes: - Flush it away with clean water. - Get medical aid. WARNING: Make sure that the t travel ravel ranges ranges of the flig flight ht control surfaces are clear before operating a hydraulic system. WARNING: Follow the hydraulic hydraulic safety procedures. procedures. Precautions have to be taken before starting hydraulic reservoir filling operation. Make sure that:

- the speed brakes and spoilers are retracted. - the thrust reversers are stowed (CFM 56 Engines only).

- the landing gear is extended and doors are closed.

- the forward and aft cargo compartment doors

3 L E V E L

0 0 2 4 D F U

1 0 T 1 0 P D Y H U M T

are closed. All the other hydraulic users must be in a normal position. The green hydraulic system must be depressurized. depressurized. But do not depressurize the system reservoirs. The Main Landing Gear door are opened. Put warning notices in position to prevent pressurization of the hydraulic systems. If electrical power is available, on the ECAM check that the green system pressure shows zero. If not, operate the rudder to reduce the pressure to zero.


Safety and tag the appropriate circuit breakers. In the main landing gear bay, check that the green reservoir pressure and the green accumulator pressure are normal. INSTALLATION On the ground service panel of the yellow system the hand pump handle has to be removed. On the other side of the aircraft open the green ground service panel. Notice that it is possible to fill any of the 3 hydraulic reservoirs from the green service panel. It is also possible to fill the reservoirs with a hydraulic service cart. The hand pump handle is connected to the pump shaft, and the filling hose stowed above the hydraulic panel is connected to the fill valve. The other end of the filling hose is put in the hydraulic fluid container. PROCEDURE Turn the selector to the green system position. Make sure that on the quantity indicator the green light comes on. Operate the pump. Monitor the increase of the fluid fluid level on the quantity quantity indicator. If there is no electrical power available, the fluid level can be checked on the reservoir itself. Stop the flow when the pointer is at the end of the green line. Turn the selector back to the NEUTRAL position. On the quantity indicator, the green light goes off.

29-16-00



29 HYDRAULIC POWER

RESERVOIR FILLING If a reservoir is overfilled, it cannot be correctly pressurized. In this case it must be drained. CLOSE-UP Remove the filling hose and re-install the blanking caps. Put the filling hose back in its stowed position. Remove the handle from the hand pump and put it in its stowed position at the yellow service panel. Close the ground service panels. Close the circuit breakers, close the landing gear doors. Make sure that the work area is clean and clear of tools and other items and access panels are closed.

3 L E V E L

0 0 2 4 D F U

1 0 T 1 0 P D Y H U M T


29-16-00



29 HYDRAULIC POWER


3 L E V E L

0 0 2 4 D F U

1 0 P D Y H U M T


29-16-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C POWE POWER R 29-22-0 29-2 2-00 0 RAT STOW STOWAGE AGE AND AND SERVIC SERVICING ING CONTENTS: Safety Precautions Extension Procedure Retraction Procedure

2 L E V E L 0 0 2 4 D F U

4 0 E A Y H U M T


29-22-00



29 HYDRAULIC POWER

RAT STOWAGE AND SERVICING SAFETY PRECAUTIONS

EXTENSION PROCEDURE

WARNING: PUT THE SAFETY DEVICES DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR: - THE FLIGHT CONTROLS - THE FLIGHT CONTROL SURFACES - THE LANDING GEAR AND THE RELATED DOORS - COMPONENTS THAT MOVE

The aircraft being electrically supplied, supplied, the RAT can be extended either by pressing in the RAT MAN ON pushbutton on the hydraulic panel or by pressing in the MAN ON/AUTO switch on the ELEC EMER PWR panel. Note: a second person must must examine examine the the extension extension of the RAT.

WARNING: MAKE SURE THAT THE T TRAVEL RAVEL RANGES RANGES OF THE FLIG FLIGHT HT CONTROL SURFACES ARE CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM. WARNING: WARN ING: MAKE MAKE SURE THAT THE THE SAFETY-LOC SAFETY-LOCKS KS POSITION ON THE LANDING GEAR.

ARE

IN

WARNING: MAKE SURE THAT THE RAT TRAVEL RANGE RANGE IS CLEAR BEFORE YOU EXTEND THE RAT. WARNING: PLACE SAFETY BARRIERS BARRIERS IN IN POSI POSITION TION AND FIT THE RAT PROTECTIVE EQUIPMENT AS PER AMM PROCEDURE.

2 L E V E L

0 0 2 4 D F U

1 0 T 4 0 E A Y H U M T

WARNING: WARN ING: DO NOT STAND STAND IN FRONT FRONT OF OR BESIDE BESIDE THE RAT PROPELLER ASSEMBLY DURING THE FUNCTIONAL TEST. Note: Do not operate the RAT deployment deployment solenoids solenoids for more than 60 sec. You can operate them more than than once, but you must then let them cool down for 30 min.


29-22-00



29 HYDRAULIC POWER

2 L E V E L

0 0 2 4 D F U

1 0 P 4 0 E A Y H U M T

RAT STOWAGE AND SERVICING - EXTENSION PROCEDURE EFFECTIVITY EFFECTIVITY ALL

29-22-00



29 HYDRAULIC POWER

RAT STOWAGE AND SERVICING RETRACTION PROCEDURE - Energize the aircraft electrical circuits. - Pressurize the Blue hydraulic system. - Make sure that the circuit breaker 49VU HYDRAULIC/RAT/CTL is closed. - Remove the protective cover from the turbine turbine blades. - Turn the turbine blade with your hands until the arrows on the turbine hub and the gearbox are aligned. aligned. - Set the Arm switch to ON on the RAT ground control panel. - Move the STOW/RESET switch to the STOW position and hold it until the green RAT stowed indicator light comes on . - During RAT retraction the red pressure light comes on. on. - When the RAT is retracted and locked, the green light comes on. - Release the STOW/RESET switch, the red pressure light goes OFF. - Set the ARM switch to OFF, the green RAT stowed light goes OFF. - If the aircraft stays on the ground for maintenance, maintenance, install the RAT safety device.

2 L E V E L

0 0 2 4 D F U

Note: if the interlock mechanism is triggered triggered or or if the stow switch is released before the RAT is fully retracted, the RAT will return to the fully extended position.

2 0 T 4 0 E A Y H U M T


29-22-00



29 HYDRAULIC POWER

2 L E V E L

0 0 2 4 D F U

2 0 P 4 0 E A Y H U M T

RAT STOWAGE AND SERVICING - RETRACTION PROCEDURE EFFECTIVITY EFFECTIVITY ALL

29-22-00



29 HYDRAULIC POWER

THIS PAGE INTENTIONALLY LEFT BLANK.

2 L E V E L

0 0 2 4 D F U

4 0 E A Y H U M T


29-22-00



29 HYDRAULIC POWER

29 - HYD HYDRA RAUL ULIC IC POWER POWER 29-2 29-222-00 00 RAT RAT TEST TEST CONTENTS: Precautions Ground Checkout Unit Presentation Rat Ground Test Motor Presentation Flow Control Test Kit Presentation Test Operation (Main Steps)

3 L E V E L

0 0 2 4 D F U

3 0 U D Y H U M T


29-22-00

Page 215 Page 1 Jun 30/96


29 HYDRAULIC POWER

RAT TEST PRECAUTIONS

GROUND CHECKOUT UNIT PRESENTATION

WARNING: PUT THE SAFETY DEVICES DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR: - THE FLIGHT CONTROLS - THE FLIGHT CONTROL SURFACES - THE LANDING GEAR AND THE RELATED DOORS - COMPONENTS THAT MOVE

The Ground checkout unit provides a visual indication indication of RAT rpm and blue system pressure delivered by the RAT during a ground check. A cable provides electrical connection connection between the RAT control panel and the connector on the ground check-out unit. RAT GROUND TEST MOTOR PRESENTATION

WARNING: MAKE SURE THAT THE T TRAVEL RAVEL RANGES RANGES OF THE FLIG FLIGHT HT CONTROL SURFACES ARE CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM. WARNING: MAKE SURE THAT THE SA SAFETY-LOCKS FETY-LOCKS POSITION ON THE LANDING GEAR.

ARE

IN

To test the RAT performance on ground, a ground test motor must be connected to the RAT gearbox. The RAT ground test motor is driven by a hydraulic ground cart. FLOW CONTROL TEST KIT PRESENTATION

WARNING: MAKE SURE THAT THE RAT TRAVEL RANGE RANGE IS CLEAR BEFORE YOU EXTEND THE RAT. WARNING: PLACE SAFETY BARRIERS BARRIERS IN IN POSITION POSITION AND FIT THE RAT PROTECTIVE EQUIPMENT AS PER AMM PROCEDURE. WARNING: WARN ING: DO NOT STAND STAND IN FRONT FRONT OF OR BESIDE BESIDE THE RAT RAT PROPELLER ASSEMBLY DURING THE FUNCTIONAL TEST.

To simulate aircraft hydraulic consumers during RAT ground check, a flow control test kit kit must be connected to the blue hydraulic service panel. The flow control test kit provides visual indication of blue system flow delivered by the RAT by means of a flow meter. The flow is controlled by means of a manual adjustable adjustable flow valve.

3 L E V E L

0 0 2 4 D F U

1 0 T 3 0 U D Y H U M T

NOTE: Do not operate the RAT deployment deployment solenoids solenoids for more than 60 sec. You can operate them more than than once, but you must then let them cool down for 30 min.


29-22-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 3 0 U D Y H U M T

RAT TEST - GROUND CHECK EFFECTIVITY EFFECTIVITY ALL

29-22-00



29 HYDRAULIC POWER

RAT TEST TEST OPERATION (MAIN STEPS) To functionally check the RAT on ground it is necessary to:

- manually deploy the RAT from the cockpit, - connect the ground test motor to the RAT gearbox,

- connect the ground checkout unit to the RAT control panel,

- connect the RAT flow control test kit to the blue ground service panel,

- spin up the RAT to 5000 rpm with flow control test kit set to 0 l/mn.

- set flow to values given in the Aircraft Maintenance Manual with RAT running.

- read RAT rpm and RAT delivery pressure. The RAT operates properly either in normal pump mode and in anti-stall mode if the recorded values are within the tolerances given in the Aircraft Maintenance Manual.

3 L E V E L

0 0 2 4 D F U

1 0 T 3 0 U D Y H U M T


29-22-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C SYST SYSTEM EM 29-00-0 29-0 0-00 0 PRE PREVEN VENTING TING HYDRAU HYDRAULIC LIC LEAKS LEAKS CONTENTS: Preventing Hydraulic Leaks

1 L E V E L 0 0 2 4 D F U

1 0 F N E G U M T


29-00-00



29 HYDRAULIC POWER

29 - HYDR HYDRAU AULI LIC C SYST SYSTEM EM 29-00-0 29-0 0-00 0 CFD CFDS S SPECIFIC SPECIFIC PAGE PRESEN PRESENTAT TATION ION CONTENTS: -General -Auto Flight System (AFS) -Flight Controls (F/CTL) -Instruments (INST) -Landing Gear (L/G)

3 L E V E L

0 0 2 4 D F U

2 0 Q D Y H U M T


29-00-00



29 HYDRAULIC POWER

CFDS SPECIFIC PAGE PRESENTATION GENERAL The CFDS SYSTEM REPORT/TEST menu does not include the hydraulic menu page. The purpose of this module is to present the access to the LAST LEG REPORT of the Auto Flight, Flight Controls, Instrument and Landing Gear systems, systems, in case of failure of certain hydraulic components. The hydraulic system components components monitored by the AFS, the F/CTL, the INST and the L/G systems are : - the pressure switches - the pressure transmitters - the temperature temperature transmitters - the quantity indicators. indicators. AUTO FLIGHT SYSTEM (AFS) The green pressure switch 1151GN 1151GN sends a signal to the Flight Augmentation Computer 1 (FAC1) and the yellow pressure switch 3151GN sends a signal to FAC2.

3 L E V E L

0 0 2 4 D F U

1 0 T 2 0 Q D Y H U M T


29-00-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

1 0 P 2 0 Q D Y H U M T

CFDS SPECIFIC PAGE PRESENTATION (AUTO FLIGHT SYSTEM) EFFECTIVITY EFFECTIVITY ALL

29-00-00



29 HYDRAULIC POWER

CFDS SPECIFIC PAGE PRESENTATION FLIGHT CONTROLS (F/CTL) The blue, yellow and green HP manifold pressure switches (2151GN-3151GN-1151GN) send a signal to the Elevator Aileron Computers Computers (ELACs) and to the Spoiler Elevator Computers (SECs). The pressure switches (10CE2-10CE3-10CE1) belonging to the Flight Control System send a signal to ELACs and SECs. The blue, yellow and green HP manifold pressure transmitters (2065GN-3065GN-1065GN) send a signal to the ELACs.

3 L E V E L

0 0 2 4 D F U

2 0 T 2 0 Q D Y H U M T


29-00-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

2 0 P 2 0 Q D Y H U M T

CFDS SPECIFIC PAGE PRESENTATION (FLIGHT CONTROLS) EFFECTIVITY EFFECTIVITY ALL

29-00-00



29 HYDRAULIC POWER

CFDS SPECIFIC PAGE PRESENTATION INSTRUMENTS (INST) The blue, yellow and green HP manifold pressure transmitters (2065GN-3065GN-1065GN) send a signal to the System Data Acquisition Concentrator (SDACs) for ECAM display. The blue, yellow and green temperature transmitters (2381GR-3381GR-1381GR) (2381GR-3381G R-1381GR) send a signal to the SDACs for ECAM display. The blue, yellow and green hydraulic quantity indicators (2000GQ-3000GQ-1000GQ) (2000GQ-3000GQ-1000GQ) send a signal to the SDACs for ECAM display.

3 L E V E L

0 0 2 4 D F U

3 0 T 2 0 Q D Y H U M T


29-00-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

3 0 P 2 0 Q D Y H U M T

CFDS SPECIFIC PAGE PRESENTATION (INSTRUMENTS) EFFECTIVITY EFFECTIVITY ALL

29-00-00



29 HYDRAULIC POWER

CFDS SPECIFIC PAGE PRESENTATION LANDING GEAR (L/G) The green HP manifold pressure switch 1151GN sends a signal to the Braking and Steering Control Control Units (BSCU A and BSCU B).

3 L E V E L

0 0 2 4 D F U

4 0 T 2 0 Q D Y H U M T


29-00-00



29 HYDRAULIC POWER

3 L E V E L

0 0 2 4 D F U

4 0 P 2 0 Q D Y H U M T

CFDS SPECIFIC PAGE PRESENTATION (LANDING GEAR) EFFECTIVITY EFFECTIVITY ALL

29-00-00



29 HYDRAULIC POWER


3 L E V E L

0 0 2 4 D F U

2 0 Q D Y H U M T


29-00-00

Page Page230 10 Aug 31/99

29-HYDRAULIC

Recommend Documents