EE WAS MOVING BELT, HE PUT A PIPE UNDER THE BELT TO LIFT TO PUT STRUCTURE IN AND WHEN HE PULLED UP HE FELT A PULL IN HIS BACK. HE COMPLE6TED SHIFT ON WED. THURS. HE WORKED WITH LITTLE DISCOMFO RT. ON FRI., HE HAD TO BE BROUGHT OUTSIDE BECAUSE OF PAIN.