EE WAS ASSISTING A COAL HAUL OPERATOR CHANGE THE BATTERIES ON HIS MACHINE. HE WAS PLACING A WOODEN BLOCK BETWEEN THE BATTERY LIFT JACK AND THE BATTERY WHEN THE OPERATOR ACTIVATED THE HYDRAULIC LIFT JACK AND CAUGHT THE EE'S LEFT THUMB BETWEEN THE BATTERY AND THE WOODEN BLOCK CAUSING A LACERATION TOHIS THUMB REQUIRING TWELVE SUTURES TO REPAIR THE WOUND.