WING 1524GM CHECK VALVE-SLATS CASE DRAIN, G 148 29-10-00 1672GM SELF SEALING CPLG-PUMP SUCTION, G 435 437AL 1704GM CHECK VALVE-FLAP CASE DRAIN, G 145 734 29-10-00
1WD ENG/APU FIRE PNL 20VU 211 831 26-12-12
R **ON A/C 059-099, 102-149, 151-199, 201-299, 301-399, 401-499,
1041GM CHECK VALVE-ENG 1 PUMP CASE DRAIN, G 413 437AL 29-11-37 1046GK VALVE-G PUMP FIRE, ENG 1 574 574AB 29-11-52 1048GM FILTER-HP, G 146 734 29-11-45 1050GM CHECK VALVE-ENG 1 PUMP DELIVERY, G 413 437AL 29-11-36 1063GM RELIEF VALVE-HP, G 146 734 29-11-32 1064GM PRIORITY VALVE-G 146 734 29-11-33 1070GM ACCU-G PWR 145 733 29-11-42
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA
| | | | DOOR | REF. -------------------------------------------------------------------------------1071GM VALVE-NITROGEN CHARGING, G POWER 145 733 29-20-00
ACCU 1072GM PRESS GAGE-G POWER ACCU 145 733 29-11-21 1084GM DRAIN-HYDRAULIC FILTER CASE ASSEMBLY 435 437AL 29-10-00 1093GM CHECK VALVE-PTU DELIVERY, G 146 734 29-10-00 1170GM CHECK VALVE-FLAP WTB RETURN, R WING 684 675DB 1187GM VALVE-FLUID SAMPLING, G HP MANIFOLD 146 197CB 29-11-34 1277GM CHECK VALVE-NLG LP, G 148 734 29-10-00 1410GM CHECK VALVE-SLAT WTB G RETURN, L 522 522SB
WING
1411GM CHECK VALVE-SLAT WTB G RETURN, R 622 622SB
WING 1524GM CHECK VALVE-SLATS CASE DRAIN, G 148 29-10-00 1672GM SELF SEALING CPLG-PUMP SUCTION, G 435 437AL 1704GM CHECK VALVE-FLAP CASE DRAIN, G 145 734 29-10-00
1WD ENG/APU FIRE PNL 20VU 211 831 26-12-12
**ON A/C ALL
3. System Description
__________________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R (Ref. Fig. 011)
R **ON A/C 401-499,
R (Ref. Fig. 011A)
R **ON A/C ALL
The Green main hydraulic system has two sub-systems:
-
a high-pressure (HP) circuit which supplies consumers,
-
a low-pressure (LP) or return circuit through which the fluid returns to the reservoir.
Green Hydraulic System - Schematic R Figure 011
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 29-11-00Page 17 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1
R Green Hydraulic System - Schematic
R Figure 011A
R 1EFF : 401-499, 1 29-11-00 Page 18
1 1 Aug 01/05
1 1
1CES 1
The HP circuit is usually pressurized by an engine-driven pump (EDP) (1030GK) connected to the left (No 1) engine. The EDP has a direct mechanical connection (through the accessory gearbox) to the engine and turns together with it. A solenoid valve on the EDP makes it possible to stop the supply of fluid to the system. A pushbutton switch (P/BSW) in the flight compartment controls the operation of the solenoid valve. The EDP can pressurize the system to 206 +3 -0 bar (3000 +45 -0 psi) at zero flow or to 196 bar (2854 psi) with a flow of 140 l/m (37 USgal/min). This flow is achieved at the rated delivery speed of the pump (3702 rpm - equivalent to 100% engine N2 speed).
The EDP is attached to the engine accessory gearbox with key-hole fasteners. The hoses between the EDP and the system have quick-disconnect self-sealing couplings. These features make it possible to change the EDP quickly with minimum disturbance of the system.
There are two different types of EDP which are permitted. ABEX make one type, VICKERS the other. The two types are completely interchangeable. They give equivalent supplies of hydraulic power and their mechanical and electrical connections are the same.
The power transfer unit (PTU) (1088GM) can also pressurize the Green HP circuit (Ref. 29-23-00). The PTU gets its power from the Yellow main system (Ref. 29-13-00). It supplies power to the Green system automatically if the system pressure falls to 500 psi (34.5 bar) below the pressure in the Yellow system. There is no hydraulic connection between the two systems so fluid can not get from one system to the other.
On the ground, it is possible to pressurize the system from a ground supply. The system has self-sealing connections for a ground supply installed on the ground service panel.
The ground service panel for the Green system is installed in the left belly fairing aft of the main gear compartment. The components and connections necessary to service the Green system (not including the ground connection of the reservoir pressurization system and the reservoir drain) are installed in a group together on it. The ground service panel has these components on it:
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the ground test pressure and suction self-sealing connectors 1006GM and 1008GM,
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the Green reservoir depressurization valve 1087GM (Ref. 29-14-00),
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