heavy and tractor-trailer truck drivers

Operating self-propelled tractor-trailer combination in activities involved in harvesting crops such as corn wheat, milo; driving truck for transporting harvested agricultural products such as grain, hay, manure to and from farm storage locations; performing manual or mechanical adjustments and maintenance to equipment; performing safety checks on equipment; driving tractor with trailer or cart attached for transporting materials from one locatio n to another; attaching equipment using hand tools.