EE WAS RUNNING THE SKID STEER LOADER CLEANING CONVEYOR ABOUT 1130 AM CO WORKER SAW EE WALKING AROUND BY HIS ELECTRIC BLDG. A FEW MIN LATER WORKER NOTICED A PIECE OF SCREEN PLANEL COME OFF THE END OF THE CONVEYOR. WORKER DROVE HIS LOADER TO TELL HIM THAT HE HAD SCREEN COMING APART. THAT IS WHEN WORKER FOUND EE SITTING ON A CHAIR. WORKER CHECKED EE AND DID NOT FIND A PULSE OR BREATHI