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  • Chapter 9: Fluid Lines & Fittings › Hose Identification › Fabrication & Replacement of Flexible Hose

    serviceable. The inside diameter of the fitting is the same as the inside diameter of the hose to which it is attached. Figure 9-34. Suggested handling of preformed hose. All flexible hose must be proof-tested after assembly ... applying pressure to the inside of the hose assembly. The proof-test medium may be a liquid or gas. For example, hydraulic, fuel, and oil lines are generally tested using hydraulic oil or water, whereas air or instrument lines…

  • Chapter 9: Fluid Lines & Fittings › Hose Identification

    Figure 9-30. Permaswage™ repair. Teflon™ is the DuPont trade name for…

  • 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 › Hydraulic Power Systems › Evolution of Hydraulic Systems

    Hydraulic Power Systems Evolution of Hydraulic Systems Smaller aircraft have relatively low flight control surface loads, and the pilot can operate the flight controls by hand. Hydraulic systems were utilized for brake systems on early aircraft. When aircraft started ... larger in size, the pilot was not able to move the control surfaces by hand anymore, and hydraulic power boost systems were introduced. Power boost systems assist the pilot in overcoming high control forces, but the pilot still actuates…