EMPLOYEE WAS HELPING SET UP A NEW HOPPER FOR THE CRUSHER HE WAS STANDING ON A LADDER ABOUT 6 FT UP, HE WAS TAKING A BOLT OUT OF A CROSS BRACE SO WE COULD LINE THE BOLT HOLES IN THE LEGS UP WHE N THE BOLT CAME OUT. HE FELL HEAD FIRST TO THE GROUND WHICH WAS ROCK COVERED. HE HAD A CUT OVER RIGHT EYE AND A SPRAINED NECK.