Hydraulic Schematic
Figure 301
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R Hydraulic Schematic R Figure 301A
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B. LP System The LP system returns the fluid from the consumers to the reservoir. The case drains of the EDP and PTU, and the returns from the HP manifold, are also connected to the LP system. The system has check valves where applicable to control the flow of fluid. The check valves also protect the main system if there is a leak in a subsystem. Some of the return lines are connected together at the LP manifold 1003GM. Part of the LP system is also used in the reservoir filling system.
The LP fluid goes through the LP filter 1002GM before it gets to the
system reservoir 1000GQ.
A filter 1084GM is also installed in the EDP case drain line to the LP
system.
The system reservoir 1000GQ is installed in the main landing gear
compartment.
The reservoir is filled through the reservoir filling system which is
operated from the ground service panel of the Green system. A reservoir
drain valve is installed on the reservoir.
The reservoir is pressurized with air to 3.5 bar (50 psi). The supply of
air comes from the aircraft pneumatic system. It is also possible to
pressurize the reservoir from a ground supply. A depressurization valve
1187GM is installed on the ground service panel of the Green system.
C. Suction System The engine pump 1030GK gets its supply of fluid directly from the Green reservoir 1000GQ. The fire shut-off valve 1046GK permits to isolate the supply of the engine pump.
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BLUE MAIN HYDRAULIC POWER - FAULT ISOLATION PROCEDURES
______________________________________________________
TASK 29-12-00-810-801
Loss of the Blue Reservoir Pressurization
1. Possible Causes
_______________
- VALVE-MAN DEPRESS, B RSVR (2087GM)
- VALVE-AIR RELIEF, B RSVR (2005GM)
- PRESS GAGE-B RSVR (2383GM)
- CHECK VALVE-RSVR PRESS, B (2388GM) R - RSVR PRESS UNIT (1360GM)
- RESTRICTOR- RSVR PRESS, ENG 1 BLEED (1392GM)
- PRESS SW-B RSVR AIR (2384GH)
- PRESS SW - AIR, B RSVR (2387GH)
- filter element
- bleed air lines
- RELAY (2388GH)
- RELAY (2389GH)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
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REFERENCE DESIGNATION
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AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
External Power AMM 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs AMM 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector
AMM 29-14-00-720-002 Functional Test of the Hydraulic Reservoir
Pressurization System with the Left Engine AMM 29-14-13-000-001 Removal of the Bleed-Air Line Restrictor (1392GM) AMM 29-14-13-400-001 Installation of the Bleed-Air Line Restrictor 中國航空網(wǎng) www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 液壓(34)
