EE WAS REMOVING A CONVEYOR BELT ROLLER FROM CONVEYOR BELT. HE CONNECTED 1 OF A CABLE HOIST-PULLER TO THE CONVEYOR FRAME THE OTHER END TO THE ROLLER. AS HE BEGAN TO LOWER ROLLER, CABLE SLIPPED EE REACHED OUT & GRABBED THE ROLLER FELT SHARP PAIN IN RIGHT SHOULDER. 11/10/04 INFORMED BY OPERATOR EE HAS INCURRED AN INGUINAL HERNIA ON LEFT SIDE