The Cat 657 Wheel Tractor-Scraper (WTS) has a rated load of 52 tons and boasts a 7% increase in fuel efficiency over the 657G WTS. Its two-engine design includes the Cat C18 powering the tractor ...
Maximum horsepower is over 1,000. Figure 15.1A shows a typical direct-drive crawler tractor. The detail view (Fig. 15.1B) shows a center section or chassis that contains the engine, transmission, and ...