EMPLOYEE REPORTED: CRAWLING ALONGSIDE THE 1ST WEST CONVEYER BELT TO GET THE WATER PUMP, BUMPED HIS HEAD AGAINST AN ARCH BEAM. CONTINUED TO EXPERIENCE PAIN OVER THE WEEKEND, REPORTED THE INJURY WHEN RETURNED TO WORK ON MONDAY AFTERNOON, WENT TO DOCTOR THE FOLLOWING MORNING. STARTED LOOSINGSCHEDULED WORK DAYS ON 3-23-02.