A STEEL BAR USED TO DISLODGE ROCKS STUCK IN THE AREA ABOVE THE PRIMARY CRUSHER WAS CAUSED TO FALL FROM THE PLATFORM BY ROCKS STRIKING THE PLATFORM. THE BAR PUNCHED THROUGH THE GUARD AROUND THE FLYWHEEL AND CAME IN CONTACT WITH THE FLYWHEEL.BAR STRUCK THE WORKER ACROSS THE LEGS. RECEIVED BRUISES AND LACERATIONS OF THE RIGHT LEG AND BRUISING OF THE LEFT LEG.