Pfaff varimatic 6087 Owner's Manual - Page 60
Faults, remedy, Machine, skips, stitches, Remedy, Needle, thread, breaks, uniform
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Faults and how to remedy them Cause 1 Machine skips stitches Needle not inserted corre tly. Wrong needle used Needle bent or blunt. Machine threaded improperly Needle too thin for thread used 2. Needle thread breaks For any of the above reasons. Thread tension too strong. Poor quality or knotty thread used, or thread that has become too dry by excessive storage. 3. Needle breaks Needle not pushed up as far as it will go. Needle bent. Needle too thin or too thick. Needle bent and strikes needle plate because fabric is pushed or poled. Bobbin case improperly inserted. 4. Seam is not uniform Tension out of adjustment. Thread too thick, knotty or hard. Bobbin thread wound unevonly. Kinks appear on top and bottom of material. Remedy: Push needle up as far as it will go, its flat shank side facing rear. Insert system 1 30 705 H needle Insert new needle. Check threading. Use thicker needle. See par 1 above. Regulate thread tensions. Use only good qua ity thread. Insert new needle and push it up as far as it will go. Insert new needle. See Needle Chart. Let machine feed the fabric alone. Only guide the material lightly. When inserting the bobbin r.,ase, push it in as far as it will go. Check upper and lower tensions. Use first class thread only. Durng bobbin winding, Jo not hold thread in hand, but puss it tfirough the bobbin winder tension. Thread machine properly and chock both tensions. 56