MINER WAS CLEARING HAUL ROAD WITH A 1996 CAT LOADER. THE BUCKET DUG INTO ROAD CAUSING THE LOADER TO SUDDENLY STOP, THROWING THE MINER INTOTHE WINDSHIELD. HE WAS NOT WEARING THE SEAT BELT . HE HAD BEEN INSTRUCTED AND TRAINED TO WEAR THESEAT BELT AND OPERATE LOADER SAFELY.