Hydraulic Power System Accumulators, Actuators, Seals Spokane Community College
Accumulators Piston Type Bladder Diaphragm
Piston Type
Diaphragm Type
Diaphragm
Maintenance Removal Make sure and remove system pressure first! To Charge Make sure system pressure is at Zero and if piston type, be sure piston is at the stop!
Actuator Linear Actuators Rotary Actuators
To transform hydraulic pressure into useful work! Purpose of Actuators? To transform hydraulic pressure into useful work!
Landing Gear Actuator Installation
Actuators
Double Acting Cylinder
Seals
Dimensioning
Numbering
Seals
Seal Under 0 Pressure
O Ring (Two Way Seals)
Backup Rings
Backup Ring Installation
O-ring Installation Compatibility Blue Dot or Stripe= Compatible with 5606 Red Dot or Stripe= Compatible with Fuel Yellow Dot= Synthetic Engine Oil White Stripe= Petroleum based engine oil or lubricant Green dash= Skydrol hydraulic fluid
Tools
Removal Tools (0 Ring)
Installation (O Ring)
Fluid Carrying Lines
Fluid Carrying Lines Teflon Hoses take a set. Do not straighten! Do not pull a line into place with “B” nut! What is permissible damage in rigid lines? Are straight runs best? What is the “Lay Line”