EXCAVATOR BUYING NO FURTHER A MYSTERY

Hydraulic excavators usually few motor power to (normally) three hydraulic pumps rather than to mechanical drivetrains. The 2 key pumps provide oil at large stress (as many as 5000 psi, 345 bar) for your arms, swing motor, track motors and accessories while the third is really a reduced force (≈seven-hundred psi, 48 bar) pump for pilot control of