AM.II.F.S5
SkillCheck a pressure regulator and adjust as necessary.
From the FAA library
- Chapter 15: Ice & Rain Protection › Inspection, Maintenance, & Troubleshooting of Rubber Deicer Boot Systems › Adjustments
excess pressure in the event of regulator valve failure. To adjust this valve, operate the aircraft engines and adjust a screw on the valve until the deicing pressure gauge indicates the specified pressure at which the valve should relieve. Vacuum ... constant suction during varying vacuum pump speeds. To adjust a vacuum relief valve, operate the engines. While watching the vacuum (suction) gauge, an assistant should adjust the suction relief valve adjusting screw to obtain the correct suction specified…
- Chapter 12: Hydraulic & Pneumatic Power Systems › Valves › Pressure Control Valves
Pressure Control Valves The safe and efficient operation of fluid power systems, system components, and related equipment requires a means of controlling pressure. There are many types of automatic pressure control valves. Some of them are an escape for pressure ... that exceeds a set pressure; some only reduce the pressure to a lower pressure system or subsystem; and some keep the pressure in a system within a required range. Relief Valves Hydraulic pressure must be regulated in order…
- 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 › Basic Hydraulic Systems › Closed-Center Hydraulic Systems
means of controlling pump pressure varies in the closed-center system. If a constant delivery pump is used, the system pressure is regulated by a pressure regulator. A relief valve acts as a backup safety device in case the regulator ... fails. If a variable displacement pump is used, system pressure is controlled by the pump’s integral pressure mechanism compensator. The compensator automatically varies the volume output. When pressure approaches normal system pressure, the compensator begins to reduce the flow…