THE 5-SECOND TRICK FOR BLUE BOOK VALUE EXCAVATOR

Hydraulic excavators generally couple engine energy to (usually) three hydraulic pumps rather then to mechanical drivetrains. The 2 main pumps offer oil at high strain (up to 5000 psi, 345 bar) to the arms, swing motor, track motors and accessories although the third is usually a reduce strain (≈seven-hundred psi, 48 bar) pump for pilot control o