Abstract: Employee #1 was using a water hose to clean a corn tortilla oven and manufacturing machine. The machine had a sheet metal safety guard, which normally covered the gears, sprockets, and chains of the machine's power transmission drive mechanism. At the time of the accident, the machine was running with the guard open so that it could be cleaned. As he was working, Employee #1's shirttail was pulled into the rotating parts. The skin and flesh on the right side of his lower back were then pulled into the gear assembly. He became trapped in the machine and suffered severe lacerations and soft tissue injuries, for which he was hospitalized.