EE WAS ASSIGNED TO REPLACE A 1"" WELDED DRAIN VALVE AT #3 DEAERATOR. HE DROPPED A LINE DOWN TO OTHER, WHO TIED ONT HE WELDING LEAD AND FED IT AS HE PULLED IT UP. HE WOULD PULL 3"" OF ROPE WITH H SI RIGHT ARM. THEN HOLD IT OVER AND DOWN ACROSS.THE HANDRAIL AS HE GRABBED ANOTHER 3"" OF LINE AND SO FORTH UNTIL THE LEAD WAS UP AND IN PLACE. HE BEGAN TO NOTICE A PAIN IN HIS SHOULDER WHILE