heavy and tractor-trailer truck drivers

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