Aviation Mechanic - General, Airframe, and Powerplant › II. Airframe › Task F. Hydraulic and Pneumatic Systems

AM.II.F.S6

Skill

Remove, clean, inspect, and install a hydraulic system filter.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Airframe p. 12-3
Chapter 12: Hydraulic & Pneumatic Power Systems › Hydraulic Fluid Contamination › Contamination Check
check of the system should be made. The filters in most hydraulic systems are designed to remove most foreign particles that are visible to the naked eye. Hydraulic liquid that appears clean to the naked eye may be contaminated ... that it is unfit for use. Thus, visual inspection of the hydraulic liquid does not determine the total amount of contamination in the system. Large particles of impurities in the hydraulic system are indications that one or more components…
Aviation Maintenance Technician Handbook - Airframe p. 12-44
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…