Along with numerous prints of Athey Truss Wheel crawlers by themselves and in various applications, five different crawler tractors are depicted: three of which proudly wear the Athey name. Although ...

Crawler (track-laying) tractors have a weight range from 4 or 5 tons to almost 150 tons. Maximum horsepower is over 1,000. Figure 15.1A shows a typical direct-drive crawler tractor. The detail view ...