INJURED STATED THAT AS HE WAS MUCKING COAL AROUND THE HEAD DRIVE HE BUMPED HIS ELBOW ON THE HEAD DRIVE AND WAS SHOCKED. HE WAS TAKEN TO THE DR AND CHECKED OUT AND FOUND TO BE ALL RIGHT. THE HEAD DRIVE WAS EXAMINED BY THE COMPANY ELECTRICIAN AND AN ELECTRICAL INSPECTOR WITH THE STATE MINE SAFETY AND LICENSING AND FOUND TO BE IN SAFE WORKING CONDITION