heavy and tractor-trailer truck drivers

Operating self-propelled equipment such as truck with trailer that assists with reaping, harvesting, threshing, swathing or winnowing crops such as wheat and corn silage; Load crops onto trucks by driving alongside harvesting machine without stopping, maintain appropriate distance; Perform manual or mechanical adjustments to equipment; Perform safety checks on equipment; Drive truck with trailer to transport harvested crops from fields to farms o r other storage areas; Drive from one field to another; Repair, service, and maintain farm machinery such as harvesters, trucks, and tractors.