The world's the dependence on United States for food has resulted in a great demand for agricultural equipment development. Fluid power is being applied to solve many of the problems dealing with the harvesting of food crops. Figure 1-10 shows a hydraulically driven elevator conveyor system, which is used to send harvested, husked ears of corn to a wagon trailer. Mounted directly to the chain-drive conveyor, a hydraulic motor delivers full-torque rotary power from start-up to full rpm.