NOT KNOWN FACTS ABOUT MEDIUM SIZE EXCAVATOR FOR SALE

Hydraulic excavators commonly couple engine ability to (normally) three hydraulic pumps rather then to mechanical drivetrains. The 2 major pumps supply oil at large pressure (as much as 5000 psi, 345 bar) for that arms, swing motor, track motors and accessories whilst the third is usually a reduced force (≈seven-hundred psi, forty eight bar) pump