EMPLOYEE WAS GREASING A TRUCK. ALLEGES HE WAS CRAWLING OUT FROM UNDERNEATH THE TRUCK AND TRIED TO GET UP TOO SOON AND HIT THE TOP OF HIS SHOULDER ON THE TAILGATE BAR. HE DIDN'T GO TO THE DOCTO R UNTIL 4-21-00. HE DID NOT KNOW IT WAS WORK RELATED UNTIL 4-27-00.