EE WALKED AROUND THE END OF A PARKED BATTERY HAULER WHILE AN EE WAS OPERATING THE EJECTOR BLADE. THIS WAS TO LINE UP BRACKET HOLES FOR PINNING THE EJECTOR INTO PLACE SO THE HAULER COULD BE USE D AS A MANTRIP. THE TAILGATE AUTOMATICALLY OPENS TO TOWARD THE MINE FLOOR WHEN THE EJECTOR IS OPERATED. THE TAILGATE CAME DOWN ON HER FOOT.