THE BASIC PRINCIPLES OF EXCAVATOR TIMBER GRAB

Hydraulic excavators commonly couple engine power to (frequently) a few hydraulic pumps in lieu of to mechanical drivetrains. The 2 principal pumps source oil at large tension (as much as 5000 psi, 345 bar) for that arms, swing motor, track motors and accessories while the third is often a lower stress (≈seven hundred psi, forty eight bar) pump f