AM.II.F.S2
SkillIdentify different packing seals.
From the FAA library
- Chapter 12: Hydraulic & Pneumatic Power Systems › Hydraulic Power Systems › Seals
case of an electrical failure, the HMDG could provide an alternative source of electrical power. Seals Seals are used to prevent fluid from passing a certain point, and to keep air and dirt out of the system in which they ... used. The increased use of hydraulics and pneumatics in aircraft systems has created a need for packings and gaskets of varying characteristics and design to meet the many variations of operating speeds and temperatures to which they are subjected…
- Chapter 12: Hydraulic & Pneumatic Power Systems › Seals › O-Rings
Ring Packings V-ring packings (AN6225) are one-way seals and are always installed with the open end of the V facing the pressure. V-ring packings must have a male and female adapter to hold them in the proper ... position after installation. It is also necessary to torque the seal retainer to the value specified by the manufacturer of the component being serviced, or the seal may not give satisfactory service. U-Ring U-ring packings (AN6226…
- Chapter 12: Hydraulic & Pneumatic Power Systems › Seals › Seal Materials
Seal Materials Most seals are made from synthetic materials that are compatible with the hydraulic fluid used. Seals used for MIL-H-5606 hydraulic fluid are not compatible with phosphate ester-based fluids and servicing the hydraulic system with ... wrong fluid could result in leaks and system malfunctions. Seals for systems that use MIl-H-5606 are made of neoprene or Buna-N. Seals for phosphate ester-based fluids are made from butyl rubber or ethylene-propylene elastomers. Figure…