A400M Training Manual ATA 29 Hydraulic System PDF

Table of contents Chapter 1. Hydraulic Power SubSystem - Description & Operations 1.1 Hydraulic Power SubSystem - Description 1.1.1 General Description 1.1.2 Controls & Indications 1.1.3 Component Location Chapter 2. Hydraulic Indicating SubSystem - Description & Operations 2.1 Hydraulic...

Table of contents Chapter 1. Hydraulic Power SubSystem - Description & Operations 1.1 Hydraulic Power SubSystem - Description 1.1.1 General Description 1.1.2 Controls & Indications 1.1.3 Component Location Chapter 2. Hydraulic Indicating SubSystem - Description & Operations 2.1 Hydraulic Indicating SubSystem - Description 2.1.1 General Description 2.1.2 Controls & Indications 2.1.3 Component Location 2.1.4 Detailed Description 2.1.5 Pressure Detection 2.1.6 Temperature Detection 2.1.7 Fluid Level Detection Chapter 3. Hydraulic System - Maintenance 3.1 On Board maintenance System 3.1.1 OMS Pages TRAINING 3.2 Maintenance Tasks USE 3.2.1 Reservoir Level Check Released in November 20, 2018 ONLY Training Use Only 1 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  A400M Training Manual ATA 29 Hydraulic System TRAINING USE Released in November 20, 2018 ONLY Training Use Only 2 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Chapter 1. Hydraulic Power SubSystem - Description & Operations 1.1 Hydraulic Power SubSystem - Description 1.1.1 General Description Hydraulic Schematic Introduction The aircraft has two independent hydraulic systems, without fluid exchange. Both of them operate simultaneously under normal operating conditions. They are identified as the blue and yellow hydraulic systems. Each of the two hydraulic systems is powered by two independent Engine Driven Pumps (EDP) The system is designed to operate with fire resistant and low-density phosphate ester based hydraulic fluid of type IV & V in accordance with NSA 307110 TRAINING Each hydraulic system provides hydraulic fluid at a nominal static pressure of 206 bar (3000 psi) to its respective consumers. The total volume of the hydraulic fluid in the blue system is 240 liters. The total volume of the hydraulic fluid in the yellow system is 290 liters. The Hydraulic Power is managed by two computers, the Hydraulic System Management Units (HSMU) USE Released in November 20, 2018 ONLY Training Use Only 3 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 4 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Hydraulic Schematic The general hydraulic schematic is composed by the blue and yellow hydraulic systems. The following schematic is showing a complete overview of the A400M hydraulic system TRAINING USE Released in November 20, 2018 ONLY Training Use Only 5 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 6 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Main Hydraulic Power Components Reservoir The hydraulic system incorporates two reservoirs, one per system (Blue/Yellow) containing sufficient volume of fluid to ensure that a constant supply is available to the consumers throughout the aircraft’s flight envelope and during ground handling and maintenance The Reservoir is an air pressurized type container pressurized to 4.5 bars (65 psi) in order: - To prevent cavitation of the hydraulic pumps - To make sure that the flow of hydraulic fluid in the hydraulic system is satisfactory. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 7 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 8 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Reservoir Pressurization Unit The Hydraulic Reservoir Pressurization System includes two Reservoir Pressurization Units (RPU). Each reservoir is pressurized by its own dedicated Reservoir Pressurizing Unit (RPU) using bleed air supplied by different sources. The reservoir pressurization units get an air supply from one of the sources that follow: - High Pressure (HP) air from Engine 2 through a bleed-air restrictor (BAR), that limits the flow in the event of a line rupture or leaks on the pressure line downstream. - Low Pressure (LP) air from the Pneumatic Air Distribution System (PADS) - An external ground air supply unit through the respective Ground Service Panel. Inside the RPU the main components are: - A pressure regulating valve to control de pressure supplied - A water separator to avoid hydraulic fluid water contamination and - A particle filter to remove unwanted material from the air. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 9 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 10 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Fire Shut Off Valve An electrically operated motorized Fire Shut-Off Valve (FSOV) is located in the suction line to each Engine Driven Pump (EDP). The valves are closed by operating the flight deck fire push-button switches (in the event of a nacelle fire) to shut-off the hydraulic fluid supply to the engine from the reservoir. A wire-cut device can also close the FSOV if there is an Uncontained Engine Rotor Failure (UERF). TRAINING USE Released in November 20, 2018 ONLY Training Use Only 11 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 12 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Heat Exchanger The Heat Exchanger Integrated Package is designed to protect the hydraulic system from overheating, the cooling medium is ram air, generated when the aircraft is in flight. In normal operation the hydraulic reservoir temperature shall be lower than 95ºC and the case drain temperature shall be lower than 110ºC. The Heat Exchanger Integrated Package consists of a Heat Exchanger Matrix and an Air Scoop Actuator: -The Heat Exchanger Matrix is installed in each case drain line downstream of the Engine Driven Pumps (EDP) -The Air Scoop Actuator is controlled by the Hydraulic System Management Unit (HSMU) and operates an air inlet scoop to provide ram air to the heat exchanger matrix. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 13 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 14 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Engine Driven Pump The main hydraulic power source is provided by four Engine Driven Pumps (EDP) installed on the accessory gearbox of engines 1 and 2 for the Blue Hydraulic System and engines 3 and 4 for the Yellow Hydraulic System. A spline connects the EDP to the Engine AGB (Accessory Gear Box) that is driven by the HP shaft of the engine. The spline has a shear section which is the weakest point of the shaft. Just in case the EDP is unable to turn because of a jamming, an overtorque or whatever reason, the shaft will break in that specific point releasing the engine from the pump. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 15 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 16 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description High Pressure Manifold The HP manifold receives high pressure fluid from the Engine Driven Pumps (EDP) and distributes it to the Blue/Yellow Hydraulic System consumers, the LP circuit (through the pressure relief valve) and to the system accumulator. The HP manifold incorporates: -Three System Pressure Transducers which transmit a pressure signal to the Flight Control Computers and to the Control and Display System (CDS) to permit the system pressure to be displayed on the system display page. -One Pressure Switch sensing low system pressure which sends a signal to the High Lift Control Computers (HLCC). -One Pressure Relief Valve integrated in the manifold, releases the fluid back to the LP system protecting the system when the system pressure becomes too high (originated from the EDPs). TRAINING USE Released in November 20, 2018 ONLY Training Use Only 17 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 18 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Accumulator One accumulator is installed in each hydraulic system (Blue/Yellow) to dampen pump delivery pulsations and system pressure surges. They also compensate for pump response time in the event of a high flow demand from the consumers. The accumulators are of the maintenance free metal bellows type and both are full of pressurized Helium gas. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 19 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 20 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Fluid Filters Several Filters are distributed on both systems to ensure the cleanness of the hydraulic fluid. Filters remove solid particles coming from different parts of the system. Depending on the size and nature of the particles found in the filter element, during maintenance activities, it is possible to determine the system degradation. Every filter has a Differential Pressure Indicator (DPI) used to detect clogging.The filtering part must be replaced when the clogging indication is shown. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 21 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 22 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Auxiliary Hydraulic Power Electrical Motor Pump One constant frequency (400Hz and 115VAC) Electrical Motor Pump (EMP) is installed in each hydraulic system to provide hydraulic power, whilst the aircraft is on the ground (when the engines are not running and the electrical power supply is provided from a ground power unit or the APU driven generator). The electric pump has a cooling fan which uses air to keep the electrical motor refrigerated. The main function of the Blue System EMP is to provide hydraulic power to the Door and Ramp Actuation System (DRAS) and for charging of the parking brake system. The main function of the Yellow System EMP is to provide hydraulic power to the Kneeling System and Ram Air Turbine (RAT) retraction system. The blue and yellow EMP can also be used to operate the other consumers, mainly flight controls, during ground maintenance and pre-flight checks. For this purpose is necessary to operate manually the selector valves The Blue and Yellow Auxiliary-Hydraulic-Power electric pumps are interchangeable TRAINING USE Released in November 20, 2018 ONLY Training Use Only 23 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 24 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Ground Service Panels The Blue Hydraulic System has a Ground Service panel (GSP) while the Yellow Hydraulic System has a Combined Reservoir Filling and Ground Service panel (CRF&GSP) The Ground Service panel (GSP) enables: -The connection of a hydraulic ground support cart to operate the hydraulic system and its consumers -The air pressurization/depressurization of the hydraulic system reservoir for ground handling or maintenance tasks when bleed air supply is not available The Combined Reservoir Filling (CRF) enables: -Reservoir refilling to both blue and yellow systems on ground. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 25 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 26 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Pressure Relief Valve The Pressure Relief Valve is installed downstream of the Electrical Motor Pump (EMP) filter, to protect the system whilst the EMP, ground supply or auxiliary hand pump is operating. In the event of overpressure, the fluid is released into the return system. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 27 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 28 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Hydraulic Consumers Blue System Consumers Hydraulic blue system supply power to the flight controls, normal and parking brake, cargo ramp, stabilizer struts, cargo door, air deflector, ramp toes and Hose Drum Unit (HDU) Fuel Pump The blue system Electrical Motor Pump (EMP) enables the hydraulic system consumers to be operated for ground maintenance and operation such as Door and Ramp Actuation System (DRAS) and Normal and Parking Brake. One blue system accumulator, located in the HP manifold, supplement the flow from the system pumps during short-term and high flow consumer demands. There is one extra hydraulic accumulator dedicated to the Blue Braking System, it will be covered in detail on ATA32. A selector valve lets the continuous supply via a check valve from the EDPs when at least one engine is running During ground maintenance the selector valve can be opened to grant fluid flow from the EMP or ground supply to the blue hydraulic system flight control consumers tests. Check valves are at various locations both in the LP and HP sides of the system to either prevent reverse flow through or to prevent undue pressurization of the equipments If the system pressure falls below a certain threshold, when the aircraft is in flight, a priority valve will ensure that fluid supply is TRAINING maintained to the primary flight controls, by reducing the flow and finally isolating the Door and Ramp Actuation System (DRAS). As soon as the system pressure is recovered, the fluid flow will be restored to DRAS again. A Sampling Valve is installed in order to draw samples of hydraulic fluid for maintenance tasks such as contamination monitoring At the hydraulic consumers, the fluid pressure drops due to fluid energy transformation into mechanical energy and/or internal leakage. The hydraulic return flow is collected in the return pipework and returned to the reservoir via the return LP filter. USE Released in November 20, 2018 ONLY Training Use Only 29 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 30 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Yellow System Consumers Hydraulic yellow system supply power to the flight controls, alternate brake, Landing gear doors, Landing gear extension and retraction, Nose wheel steering, kneeling and Ram Air Turbine (RAT) retraction. The yellow system Electric Motor Pump (EMP) enables the remaining hydraulic system consumers to be operated for ground maintenance and pre-flight checks (via a selector valve), for example on the Kneeling System or the Landing Gear Check valves are located at various locations both in the LP and HP sides of the system to either prevent reverse flow through or to prevent undue pressurization of the equipment A priority valve ensures that a fluid supply is maintained to the primary flight controls if the system pressure falls below a certain threshold by reducing the flow and finally isolating the landing gear system. The fluid flow is restored to these services when the system pressure recovers again. For the purpose of Uncontained Engine Rotor Failure (UERF) protection; to ensure landing gear retraction at take off, pressure switches are installed on the EDP case drain lines in the Yellow hydraulic system only. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 31 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 32 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Selector Valves Both blue and yellow hydraulic systems have selector valves. On ground, for maintenance purposes, these valves can be opened to permit hydraulic fluid that comes from the Electrical Motor Pump or ground cart to the consumers usually used only in flight. Blue Hydraulic System selector valve routes the flow from the Engine Driven Pumps to the normal and parking brake via an internal check valve during normal operation with the engines running Yellow Hydraulic System selector valve isolates the auxiliary power circuit from main power system Selector valves also enable thermal pressure relief to return the hydraulic fluid trapped in auxiliary circuit by means of internal leakage. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 33 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 34 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Priority Valves The priority valve is a flow modulating valve that in normal hydraulic pressure conditions is fully open They are installed in the high pressure circuit (one in the Blue and one in the yellow hydraulic system) Priority valves ensure that hydraulic power is available to the flight controls during low pressure conditions by reducing or completely shutting off supply to the non-essential consumers (DRAS and Landing Gear consumers) until the system pressure recovers again. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 35 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 36 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Sampling Valves Two sampling valves, one for each system, are used to draw samples of hydraulic fluid for contamination monitoring while the circuit is pressurized and flowing. This allows carry-out a maintenance fluid test later on. A cap must be removed manually to get a fluid sample. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 37 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 38 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description Isolation Valve There is a great presence of hydraulic yellow pipes in the Main Landing Gear area (Left and Right), for several operations, like landing gear extension and retraction system, RAT retraction or kneeling system In case of an Uncontained Engine Rotor Failure (UERF) from Engine 1 or 2 (Left Hand), a fragment coming from the failed engine could damage a yellow hydraulic pipe, located in the Left sponson area. This event could lead to the loss of both hydraulic systems. The Isolation Valve is located in the yellow system because the valve would be commanded close isolating the yellow Landing Gear consumers from the yellow flight control system shutting off the possible hydraulic leak if a pipe were broken. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 39 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations General Description TRAINING USE Released in November 20, 2018 ONLY Training Use Only 40 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications 1.1.2 Controls & Indications Cockpit Hydraulic Control Panel (HYD CP) The HYD CP is located on the overhead panel allowing control of the four Engine Driven Pumps (EDP). Each Engine Pump Push-Button (P/B) controls its associated engine pump. There are three possible conditions: NORMAL ON: the pumps pressurize the systems when the engines are running. OFF: the pumps are de-energized. FAULT: illuminates amber (associated to an ECAM caution). - In the event of overheat, the fault light goes off when the overheat condition disappears. - In all other circumstances, the light goes off when the crew selects OFF. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 41 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications TRAINING USE Released in November 20, 2018 ONLY Training Use Only 42 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications Ground Hydraulic Control Panel (GND HYD CP) The GND HYD CP is on the overhead panel allowing control of the two Electrical Motor Pumps (EMP) when the aircraft is on the ground. Each guarded Electric Pump P/B controls its associated electrical pump. There are four possible conditions: NORMAL AUTO: the Hydraulic System Management System (HSMU) automatically controls the pump. OFF: the pump is de-energized. FAULT: illuminates amber (associated to an ECAM caution). - In the event of overheat, the fault light goes off when the overheat condition disappears. - In all other circumstances, the light goes off when the crew selects OFF. ON: illuminates blue when the pump is: - Manually supplied (pressing on P/B) - Automatically supplied (by HSMU) TRAINING USE Released in November 20, 2018 ONLY Training Use Only 43 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications TRAINING USE Released in November 20, 2018 ONLY Training Use Only 44 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications Fire Handle (Push Buttons) The Fire Shut-off Valve will be electrically controlled by means of a manually operated fire handle. The following states are possible: NORMAL OFF: the Hydraulic System Management System (HSMU) automatically controls the Fire Shut Off Valve (FSOV). FIRE ON: illuminates red when engine nacelle fires have been detected: - Manually pressing on P/B, close the Fire Shut Off Valve (FSOV) TRAINING USE Released in November 20, 2018 ONLY Training Use Only 45 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications TRAINING USE Released in November 20, 2018 ONLY Training Use Only 46 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications External Panels Ground Service Panel (GSP) – Blue The Ground Service Panel (GSP) enables the connection of a hydraulic ground support cart to operate the hydraulic system and supply its consumers. It also allows air pressurization/depressurization of the blue hydraulic system reservoir for ground handling or maintenance tasks when bleed air supply is not available. The GSP comprises of: - A HP Quick Disconnect (Delivery / Pressure) - A LP Quick Disconnect (Suction / Return) - A Reservoir Air Pressurization Valve (Enabling reservoir pressurization during maintenance or ground handling) - A Reservoir Air Depressurization Switch (To remotely operate the blue reservoir air depressurization valve) - A Delivery Pressure indication (Indicating the hydraulic system relative pressure) - A Reservoir Air Pressure Gauge (Indicating the relative air pressure of the reservoir) TRAINING USE Released in November 20, 2018 ONLY Training Use Only 47 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications TRAINING USE Released in November 20, 2018 ONLY Training Use Only 48 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications Combined Reservoir Filling and Ground Service Panel (CRF and GSP) The Combined Reservoir Filling and Ground Service Panel is installed to run the hydraulic systems with a hydraulic ground supply and to refill the reservoir from both blue and yellow systems on the ground. The CRF and GSP are comprised of: - A HP Quick Disconnect (Delivery / Pressure) - A LP Quick Disconnect (Suction / Return) - A Hand Pump (To displace the fluid from the fluid container to the selected reservoir for reservoir filling) - A Pressure Filter (To protect the hydraulic system from particle contamination during refilling) - A Reservoir Air Depressurization Switch (To remotely operate the yellow reservoir air depressurization valve) - A Reservoir Air Pressurization Valve (To allow reservoir pressurization during maintenance or ground handling) - A Reservoir Filling Connection (To refill the hydraulic system using a hydraulic ground supply) - A Hydraulic Pressure Gauge (Indicating the hydraulic system pressure) - A Reservoir Air Pressure Gauge (Indicating the reservoir air pressure) - A Reservoir Quantity Adjustment indication (Provides a visual status of the fluid quantity that needs to be added or removed from either the blue or yellow reservoirs) - A Reservoir Filling Selector Valve (To direct the hydraulic fluid from the supply to the selected system reservoir. The reservoir filling selector valve can be set in four positions: BLUE, YELLOW or 2 x NEUTRAL) TRAINING - A hydraulic fluid container (To be used just in case a manual refilling should be performed). USE Released in November 20, 2018 ONLY Training Use Only 49 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications TRAINING USE Released in November 20, 2018 ONLY Training Use Only 50 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications ECAM Hydraulic System Page System Pressure Indication (I) The hydraulic pressure can come from three different sources: Engine Driven Pumps (EDP), Electrical Motor Pumps (EMP) or from a Hydraulic Ground Power Unit (GPU). On flight, with EDPs On, the pressure data is given by one of the High Pressure Manifold transducer. On ground, when engines OFF, EMP or Ground Power Unit could be used, in this case the pressure data is given by the auxiliary High Pressure Filter transducer. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 51 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications TRAINING USE Released in November 20, 2018 ONLY Training Use Only 52 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications System Pressure Indication (II) The following system pressure information is displayed on ECAM SD page: - Normal (more than 1450 psi or 100 bars). - Low Pressure (less than 1450 psi or 100 bars). - Invalid pressure. If this data is coming from the auxiliary High Pressure Filter transducer instead of the manifold, then the information doesn't appear within a rectangular box. NOTE: If the Electrical Motor Pump are supplying pressure and the corresponding selector valve is open, then pressure data will appear within a rectangular box. This is because HP manifold has priority versus the auxiliary High Pressure Filter. NOTE: The Low Pressure alert is reset as soon as the pressure rises to 1740 psi or 120 bars. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 53 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications TRAINING USE Released in November 20, 2018 ONLY Training Use Only 54 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications Engines Indication The following engine information is displayed on ECAM SD page: - Engine running. - Engine not running. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 55 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications TRAINING USE Released in November 20, 2018 ONLY Training Use Only 56 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications Engine Driven Pumps Indication The following information is displayed on the ECAM SD page: - Normal ON (Engine running). - OFF (Depressurized by P/B) the pump is abnormally pressurized. - OFF (Depressurized by P/B) or the associated engine does not run. - Low Pressure (less than 2175 psi or 150 bars). - Invalid signal. NOTE: The Low Pressure alert is reset as soon as the pressure rises to 1740 psi or 120 bars. TRAINING USE Released in November 20, 2018 ONLY Training Use Only 57 / 199 This document shall be used in accordance with the provisions described on the front page. NTCSS Release 2023-01 63_ATA29_Lv2&3_CAT B2_P_NOV18..pdf  Hydraulic Power SubSystem - Description & A400M Training Manual Operations Controls & Indications 120