Pfaff hobbylock 4762 Owner's Manual - Page 61
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Problem Cause Solution Machine will not operate, although mainns switch is on Power supply interrupted Close looper cover (see page 9). Fabric not neatly trimmed Sewing lint between upper and lower knife Clean knifes Lower knifeis blunt Replaces lower knife (see page 45). Puckered seams Thread tension too tight Reduce thread tension. Incorrect setting of differential feed Re-adjust diffential feed (see pages 24. 25). Thread hgas caught due to incorrect threading Thread correctly (see pages 12 - 18). Workpiece not fed through evenly transportiert Stitches too short Sewing foot pressure too low for heavy fabrics Sewing foot pressure to high for lightweight fabrics Increase stitch length (see page 23). Increase sewing foot presure (see page 23). Reduce sewing foot pressure (see page 23). 57