EE & HIS PARTNER WERE WORKING ON REMOVING A FIVE HORSE POWER MOTOR FROM A REDUCER MOTOR ASSEMBLY. EE WAS ATTEMPTING TO HOLD THE MOTOR WHILE HIS PARTNER REMOVED THE 4 MOUNTING NUTS & BOLTS. THE MOTOR SLIPPED OFF THE BOLTS. THE EE PINCHED HIS FINGER BETWEEN THE MOTOR AND OLD REDUCER. HE WAS EVALUATED IN THE ER AND RECEIVED 5 SUTURES.