EE WAS INSTALLING A NEW GUARD AROUND THE TAIL ROLLER OF 8105 BELT. WHILE LIFTING THE GUARD INTO PLACE, THE GUARD HUNG ON A BOLT. HE STRAINED HIS SHOULDER WHILE LIFTING GUARD OFF THE BOLT. HE C ONTINUED TO WORK BUT WAS HAVING A PROBLEM WITH THE SHOULDER. HE WAS TAKEN TO A DR. ON 4-12-01. AFTER EXAM, RESTRICTIONS WERE GIVEN FOR LIFTING &FURTHER TESTS WERE ORDERED: TORN ROTATOR CUFF.