147 734 27-54-51
147 734 27-54-45
147 734 27-54-41
147 734 27-54-45
147 734 27-54-49
572 571AB 27-54-45
572 571AB 27-54-44
572 571AB 27-54-45
574 573AB 27-54-47
574 573AB 27-54-45
574 571AB 27-54-49
574 573AB 27-54-45
574 573BB 27-54-44
574 573BB 27-54-45
574 573CB 27-54-44
574 573CB 27-54-45
575 573CB 27-54-48
575 575AB 27-54-45
575 575BB 27-54-44
575 575BB 27-54-45
575 573BB 27-54-49
575 575CB 27-54-45
575 575DB 27-54-44
575 575DB 27-54-45
575 575DB 27-54-44
575 575DB 27-54-45
575 575DB 27-54-45
575 575EB 27-54-44
575 575EB 27-54-45
575 575FB 27-54-44
575 575FB 27-54-45
575 573BB 27-54-49
148 744 27-54-45
148 744 27-54-41
148 744 27-54-45
148 744 27-54-49
672 671AB 27-54-45
672 671AB 27-54-44
672 671AB 27-54-45
674 673AB 27-54-47
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA
| | | | DOOR | REF. -------------------------------------------------------------------------------6260CM TORQUE SHAFT ASSY-TRANSMISSION 674 673AB 27-54-45 6261CM ACTUATOR ASSY 674 671AB 27-54-49 6262CM TORQUE SHAFT ASSY-TRANSMISSION 674 673BB 27-54-45 6263CM STEADY BEARING ASSY 674 673BB 27-54-44 6264CM TORQUE SHAFT ASSY-TRANSMISSION 674 673BB 27-54-45 6265CM STEADY BEARING ASSY 674 673CB 27-54-44 6266CM TORQUE SHAFT ASSY-TRANSMISSION 674 673CB 27-54-45 6267CM BEVEL GEARBOX 675 673CB 27-54-48 6268CM TORQUE SHAFT ASSY-TRANSMISSION 675 675AB 27-54-45 6269CM STEADY BEARING ASSY 675 675BB 27-54-44 6270CM TORQUE SHAFT ASSY-TRANSMISSION 675 675BB 27-54-45 6271CM ACTUATOR ASSY 675 673BB 27-54-49 6272CM TORQUE SHAFT ASSY-TRANSMISSION 675 675CB 27-54-45 6273CM STEADY BEARING ASSY 675 675CB 27-54-44 6274CM TORQUE SHAFT ASSY-TRANSMISSION 675 675DB 27-54-45 6275CM STEADY BEARING ASSY 675 675DB 27-54-44 6276CM TORQUE SHAFT ASSY-TRANSMISSION 675 675DB 27-54-45 6278CM TORQUE SHAFT ASSY-TRANSMISSION 675 675DB 27-54-45 6279CM STEADY BEARING ASSY 675 675EB 27-54-44 6280CM TORQUE SHAFT ASSY-TRANSMISSION 675 675EB 27-54-45 6281CM STEADY BEARING ASSY 675 675FB 27-54-44 6282CM TORQUE SHAFT ASSY-TRANSMISSION 675 675FG 27-54-45 6283CM ACTUATOR ASSY 675 673BB 27-54-49
3. System Description
__________________
(Ref. Fig. 003)
R A. Hydraulic Actuation
Two of the three hydraulic systems supply fluid pressure through a priority valve to the PCU:
-
the GREEN hydraulic system supplies valve block 23CV
-
the YELLOW hydraulic system supplies valve block 24CV
-
the priority valves are set when the pressure drops below 140 bar (2030
psi). Each valve block controls the flow of hydraulic fluid to the related hydraulic motor and its POB.
Each POB stops and holds the output shaft of the related hydraulic motor when:
-the solenoids of the related valve block are de-energized because of a normal PCU shutdown sequence
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