HE WAS CLEANING OUT LIME FROM THE CHUTE TO THE MIXER BOX WITH A STEEL BAR. THE MIXER WAS RUNNING TO KEEP THE PUMP FROM PLUGGING. HIS ATTENTION WAS DISTRACTED AND HE TURNED TO SEE WHAT WAS HAPPENING BEHIND HIM. AS HE TURNED HE LIFTED THE STEEL BAR IN HIS HANDS UP, WHICH PUT THE OTHER END IN THE MIXER BOX. THE MIXER PULLED THE BAR OUT OF HIS HAND AND SLAPPED IT CAUSING INJURY