EE WAS PREPARING TO REPLACE A BEARING ON THE WASH SCREEN. AS HE WAS TRYING TO TAP OFF THE INNER RACE BY HITTING IT WITH A HAMMER HE FELT SOMETHING HIT HIM IN THE LEG. AFTER COMPLETING THE JOB HE SOUGHT MEDICAL ATTENTION. A PIECE OF METAL WAS REMOVED FROM HIS UPPER THIGH WHICH REQUIRED SUTURES. DIVISION OFFICE WAS NOT NOTIFIED OF INCIDENT UNTIL 7-31-00.