EMPLOYEE CLAIMS THAT WHILE HE WAS TRYING TO START A SCREW CONVEYER MOTOR, THE MOUNTING BOLTS FOR THE MOTOR WHICH WAS LOCATED AT THE END OF THE SCREW CONVEYER AND NEXT TO THE START UP SWITCH, T HE MOUNTING NOLTS BROKE CAUSING THE MOTOR TO ROTATE TO THE LEFT. WHEN MOTOR ROTATED TO THE LEFT,IT STRUCK HIM IN THE CHEST. HE SUFFERED A CONTUSION TO THE CHEST.