Drawing on extensive practical experience with the proven PR 752 Litronic push dozer, Liebherr is moving its crawler range up a notch with the new PR 764 Litronic. The new flagship of the company’s crawler tractor range works on a revolutionary drive concept: The D 9508 422-hp Liebherr V8 diesel engine drives the crawler by means of four variable-displacement pumps, each in a closed circuit. This drive system delivers maximum pushing and ripping performances in all speed ranges.