Pfaff 645F Owner's Manual - Page 25

Machine Setting ZlG-ZAG STiTCHING ZIG-ZAG STITCH Presser foot j Stitch pattern Limit lever Stitch length Fabric feed Zig-zag foOt / 'I 'N Be sure to use zig-zag foot. You can make any number of combi nations by adjusting zig-zag width and stitch length. Both knobs can be turned while machine is running. How ever if machine is not running, turn hand wheel toward you to raise needle to its highest position before adjusting stitch pattern knob. Tension on upper thread usually needs to be loosened. The wider the zig-zag, the looser the tension. Stitches should lie flat against fabric without any puckering. Zig-zag stitch has many uses: • Seam finishing Overcast seam edges to prevent ravel ing during wear and washing. (See page 32). • Edge finishing Use to finish hem and facing edges, to prevent raveling, and to eliminate the bulk of turned-in edges. For firm fabrics, stitch along edge of hem or facing. For loosely woven or soft fabrics, stitch about 10mm from edge, trim fabric close to stitching. • Interfacing darts To reduce bulk when stitching a dart in interfacing fabrics, cut down center of dart to point. Overlap cut edges, matching dart lines. Zig zag along dart line. Trim both raw edges close to stitching. • Mending Tears and patches can be repaired quickly and easily. (See page 38) 21 -