Pfaff 339 Owner's Manual - Page 69
needle, break8
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6. A wrong type of needle is being used - obtain the correct needle system 130 R from your dealer. 2. The needle is too thin for the thread or fabric - use a thicker needle (see pages 11 and 12). 7. The hook point is damaged - consult 3. The upper tension is too strong - your dealer. loosen it (see page 25). 8. A wrong sewing foot has been used - as far as possible the normal sewing foot 847495 should be used. (For spe cial sewing work, as corners of shirt collars, ask for special sewing feet by supplying a work sample.) 4. The material has been pulled along during sewing - only when sewing over thick parts of the fabric, you may aid the feed a little, sewing slowly stitch by stitch. Otherwise the material must never be pulled along. The needle break8: 1. The needle has not been correctly in serted - push it all the way up in the clamp. The needle is bent or blunt - replace the needle (see page 10). 5. The needle, instead of entering the needle hole, hits the sewing foot or the needle plate - you are using the wrong sewing foot or (especially when sewing with twin needles) the zigzag width has not been limited (see page 49) or the needle is inserted too far to the front of the clamp. 71