The Scraper Specials are equipped with a pressure- and flow-compensated hydraulic system that has a rated standard-pump output of 48 gpm. An optional high-flow hydraulic system provides 75 gpm. Both ...

The 657 Caterpillar scraper is a combination tractor-scraper utilizing a 585-horsepower Cat C18 diesel in the tractor and a 447-horsepower C15 in the scraper. The transmission features Electronic ...