Abstract: Employee #1 was a mechanic for a grading contractor whose job was to fix and repair the company's heavy equipment. He, was sent to a remote job site to tighten a loose fan belt on a water truck driven by a coworker, who watched as Employee #1 made the adjustment. When Employee #1 was finished, he said, "Let's check it out," to the driver, who was seated in the cab. The coworker immediately started the engine. Employee #1 was still in contact with the fan belt and, before he could let go the tips of his middle and fourth fingers were pinched and amputated between the belt and pulley. The supervisor administered first aid until paramedics arrived and transported Employee #1 to the hospital.