FACTS ABOUT CAT C SERIES EXCAVATORS REVEALED

Hydraulic excavators normally few engine electrical power to (typically) 3 hydraulic pumps as an alternative to to mechanical drivetrains. The 2 key pumps provide oil at high pressure (up to 5000 psi, 345 bar) with the arms, swing motor, track motors and accessories when the third is usually a reduced pressure (≈700 psi, 48 bar) pump for pilot Ch