Reservoir 1000GQ R Figure 014A
R 1EFF : 004-049, 055-099, 101-149, 151-199, 1 29-11-00Page 29 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C 001-003, 051-054,
The reservoir is made of two molded light alloy sections which are welded together to make a cylindrical shape. The top of the reservoir has a manifold for the components of the air pressurization system (Ref. 29-14-00). The bottom of the reservoir has three ports for the hydraulic connections. A drain valve is installed on one of the ports, the other two are for the suction and return line connections. The reservoir also has flanges to attach the quantity indicator/transmitter and the low level switch (Ref. 29-31-00).
The inside of the reservoir includes baffles which give a supply (for 20 s) of fluid under negative 'g' conditions. The baffles also form an anti-emulsion device which limits the emulsion of the fluid when there is a large return flow.
R **ON A/C 004-049, 055-099, 101-149, 151-199, 201-299, 301-399, 401-499,
The reservoir is made of two molded light alloy sections which are welded together to make a cylindrical shape. The top of the reservoir has a manifold for the components of the air pressurization system (Ref. 29-14-00). The bottom of the reservoir has two ports for the hydraulic connections. The ports are for the suction and return line connections. A drain valve is installed in the return port. The reservoir also has flanges to attach the quantity indicator/transmitter and the low level switch (Ref. 29-31-00).
The inside of the reservoir includes baffles which give a supply (for 20 s) of fluid under negative 'g' conditions. The baffles also form an anti-emulsion device which limits the emulsion of the fluid when there is a large return flow.
**ON A/C ALL
The hydraulic fluid capacities of the reservoir are:
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the normal fill level 14 l (3.6983 USgal),
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the maximum gageable level 18 l (4.7550 USgal)
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the low level warning level 3.0 + 0.4 - 0.4 l (0.8 + 0.1 - 0.1 USgal)
The reservoir is pressurized to 50 psi (3.5 bar) and is sealed to hold the pressure if there is no supply of air (for example, when the aircraft is parked). It is possible to pressurize the reservoir from a ground supply (Ref. 29-14-00).
The reservoir is filled with hydraulic fluid through the reservoir filling system ( Ref. 29-16-00).
B. Engine Pump Fire Valve 1046GK
R (Ref. Fig. 015) The engine-pump fire valve is installed in the LH wing between the rear spar and the rear false spar, inboard of the pylon. It is in the suction line between the reservoir and the engine-driven pump (EDP). When the valve closes it stops the supply of fluid to the EDP.
The fire valve is made up of two main parts;
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the valve assembly, and
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the actuator assembly.
The two parts are connected together with screws. It is not necessary to disconnect or empty the hydraulic pipes to remove the actuator assembly from the valve assembly.
The valve assembly is made up of an inlet and an outlet with a ball valve between then. The two connections are not the same, thus it is not possible to install the valve incorrectly. The body of the valve assembly has arrows which show the direction of flow through the valve. The valve ball has a connection for the output shaft of the actuator. The ball turns thru 90 degrees each time it operates. The ball always turns in the same direction. The actuator assembly consists of a housing which holds the electric motor, the gearbox and the limit switches. The housing also has a mounting flange which connects with the mounting flange of the valve assembly.
The electric motor is a 28 V DC type. The limit switches and the FIRE pushbutton in the flight compartment control the supply of electrical power to the motor. Spur gears connect the output shaft of the motor to the input shaft of the gearbox. The gearbox contains a worm gear and a norm wheel. Spur gears connect the worm gear to the motor. The worm wheel is attached to the output shaft. The coupling connects the output shaft of the gearbox with the ball valve of the valve assembly. The output shaft has a valve position indicator. The indicator is located on top of the actuator assembly and shows the OPEN or SHUT position of the valve. The output shaft also has a cam with actuating levers which operates two micro switches. The cam causes one switch to open and the other to close when the valve is in the fully open or closed position.
R Engine Pump Fire Valve Figure 015
1EFF : 1 1 1CES ALL 1 111 29-11-00 Page 32 Aug 01/05
The two switches are closed when the valve is between the two positions. When the valve gets to the position which is selected, one switch opens and the supply to the motor stops. One of the switches sends a signal to the (ECAM) when the valve is fully closed. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM HYDRAULIC POWER 液压2(8)
