Pfaff 645F Owner's Manual - Page 37

BUTTONHOLES 0 Machine Setting Presser foot Stitch pattern Buttonhole 3421 ] Limit lever Adjust as needed Stitch length Fabric feed I' H Center Front - Bartacks I Bu Buttonhole Markings Buttonhole Stitching Your machine has a built-in button holer - just dial the stitch pattern knob for the four steps in stitching a• buttonhole. • Mark position and length of button hole on fabric. Length of the hole is determined by the width plus thickness of the button. The finished buttonhole should be 3mm longer than this measurement to allow for bar tacks at each end. • Attach buttonhole foot which is designed to ride easily over the buttonhole stitching. • Loosen upper tension. • When sewing buttonholes on knits or loosely woven fabrics, use a piece of interfacing between fabric and facing so buttonhole will retain its shape. • Guide fabric carefully so lines of stitching will be straight and close together, but not touching. • Cut buttonhole open using em broidery scissors or seam ripper, being careful not to cut stitching on either side. Place a pin across each end of buttonhole to protect end stitching. • Always make a sample buttonhole using the same fabric before stitch ing on your garment. Try slipping the button you will use through the buttonhole to check the correct length of the hole. 35 - -