THE INJURED WAS ASSISTING THE REMOVAL OF A PITMAN ARM. ANOTHER EE WAS USING A SLEDGEHAMMER TO REMOVE THE ARM. WHEN THE ARM STARTED COMING OFF, THE INJURED REPOSITIONED HIS HAND BECAUSE HE THOU GHT THE ARM WAS TOO HEAVY FOR ANOTHER EE HOLDING THE ARM. THE EE WITH THE SLEDGEHAMMER HIT HIS FINGER.