Abstract: At approximately 3:00 p.m. on December 1, 2008, Employee #1 was preparing the tire builder for the next job. Employee #1 was being trained on the process by a coworker. The coworker was up in the breaker control area of the machine. Employee #1 entered the machine and was unhooking a vacuum hose from the drum on the breaker station. The coworker started to transfer the drum forward to the next station when the hose tripped the light curtain. Employee #1 reentered the breaker station through the light curtain to pick up the hose when the coworker reset the machine and moved the drum to the next position. Employee #1 was pinned by the drum and his leg was broken. Employee #1 was hospitalized.