AM.II.F.K8
KnowledgeTypes of hydraulic/pneumatic seals and fluid/seal compatibility.
From the FAA library
- Chapter 12: Hydraulic & Pneumatic Power Systems › Boeing 777 Hydraulic System › Center Hydraulic System
Flight controls. Reservoir The hydraulic system reservoir of the center system contains the hydraulic fluid supply for the hydraulic pumps. The reservoir is pressurized by bleed air through a reservoir pressurization module. The reservoir supplies fluid to the ADPs ... ACMPs through a standpipe. The other ACMP gets fluid from the bottom of the reservoir. The reservoir also supplies hydraulic fluid to the landing gear alternate extension system. The ACMPs are the primary pumps in the center hydraulic system…
- Chapter 12: Hydraulic & Pneumatic Power Systems › Types of Hydraulic Fluids › Compatibility with Aircraft Materials
bright, shiny finish for long periods of time and for the ease with which they can be removed. Hydraulic systems require the use of special accessories that are compatible with the hydraulic fluid. Appropriate seals, gaskets, and hoses must ... specifically designated for the type of fluid in use. Care must be taken to ensure that the components installed in the system are compatible with the fluid. When gaskets, seals, and hoses are replaced, positive identification should be made…
- Chapter 12: Hydraulic & Pneumatic Power Systems › Types of Hydraulic Fluids › Hydraulic System Flushing
Hydraulic System Flushing When inspection of hydraulic filters or hydraulic fluid evaluation indicates that the fluid is contaminated, flushing the system may be necessary. This must be done according to the manufacturer’s instructions; however, a typical procedure for flushing ... follows: 1. Connect a ground hydraulic test stand to the inlet and outlet test ports of the system. Verify that the ground unit fluid is clean and contains the same fluid as the aircraft. 2. Change the system filters…