Remove protective cap (Note: Leave cap on during sterilization). Turn Twist-Locks so they are standing up straight. Align two halves, so their sanitary shields are facing each other (Note: Make sure sanitary shields are folded over). Press halves together until one hears an audible ‘click’ and twist-locks are engaged. Pull the handles until the sanitary shields are fully removed from the connector. Insert two twist-locks through the assembled connector. Turn both twist-locks counter clockwise until they are locked in place.