Loosen the fixing screw and remove the protection from the kitchen machine. Insert the Mockmill with the metal square in the opening of the kitchen machine and if necessary move the Mockmill back and forth until it is firmly seated in the square opening. When the Mockmill is seated properly, the pin on the Mockmill snaps into the notch on the edge of the ferrule. Tighten the supplied extra-long fixing screw until the Mockmill is securely connected to the food processor.