INJURED EE WAS WORKING ON M-55 SCREW CONVEYOR TRYING TO RESOLVE A FEED PROBLEM TO THE PACKER THIS AUGER FEEDS. HE WANTED TO VERIFY THAT FEED WASGETTING TO THE AUGER, AND REMOVED THE CAP ON THE BOTTOM OF THE AUGER. USING THE HOA SWITCH AS HISISOLATION OF ENERGY, HE STATED THAT ""HE THOUGHT HE HAD IT OFF"" BUT IT WAS IN AUTOMATIC. HE PLACED HIS HAND INTO THE MOVING AUGER.