heavy and tractor-trailer truck drivers

Operating self-propelled equipment such as truck with trailer in the process of reaping, harvesting, threshing, swathing or winnowing crops such as corn, wheat, milo; Load crops onto trucks by driving alongside harvesting machine without stopping, maintain appropriate distance; Perform manual or mechanical adjustments; Maintain and repair; Transport harvested crops to elevators, silos, or other storage areas; Drive from one field to another.