heavy and tractor-trailer truck drivers

Operating self-propelled equipment such as truck or tractor that reaps, harvests, threshes, swathes, or winnows crops such as corn; performing manual or mechanical adjustments to equipment; performing safety checks on equipment; maintaining and repairing equipment and other tools; driving truck for transporting crops to elevators, silos, or other storage areas, and transporting equipment and other tools used for harvesting from one field to anoth er; cleaning work areas; maintaining inventory.