Hydraulic System Components Flashcards
Fluids, Reservoirs, and Pumps
Fluid Identification Mil-H-5606
Mineral based, dyed red, compatible with Mil-H-83282
Fluid Identification Mil-H-83282
Synthetic Hydrocarbon Base, dyed red, compatible with Mil-H-5606
Fluid identification Skydrol
Phosphate ester hydraulic fluid(synthetic), dyed purple, wide operating range
What is a reservoir for?
Extra fluid to allow for normal system seepage and some minor leakage
What is a stand pipe for?
To leave a small quantity of excess fluid for emergency operations if there is a leak
Three common way s to pressurize a reservoir
- Aspirator
- Using hydraulic system fluid
- Pressure bleed air from engine compressor
How do hydraulic pumps work?
Pumps draw fluid from the reservoir
Move the fluid forward
Single acting pump
Moves fluid only during one stroke of the strokes
Variable displacement pump
Adjusts volume based on system needs
System pressure for rotary pumps?
Systems up to approx 300 PSI
System pressure for gear pump?
Medium volume with pressures of 300 to 1500 PSI
Hydraulic fluid heat ex-changers
Placed inside the fuel tanks, there is a minimum fuel quantity that you are not allowed to use the hydraulic system