WHILE DUMPING A HOPPER WORKER WAS RESETTING REEASE HANDLE. WORKER WAS DUMPING HOPPER. RELEASE HANDLE IS LOOSE NOT PER PIN TO THE FRAME OF THE HOPPER WORKER WAS PULLING HOPPER BACK INTO PLACE. WITH HIS OTHER HAND. HOPPER CAME DOWN HOLDING BAR HIT THE HOOK ON THE HOPPER AND PUSHED REEASE HANDLE PINCHING WORKERS MIDDLE FINGER ON LEFT HAND.