Pfaff 1199 Owner's Manual - Page 15

rrouble shooting Cause: 1. Machine skips stitches Needle not inserted correctly. Wrong needle used. Needle bent or blunt. Machine threaded improperly. Needle too thin for thread used. Remedy: Push needle up as far as it will go, its flat shank side facing toward the back. Insert system 130/705 H needle. Insert new needle. Check threading. Select needle according to Needle and Thread Chart. 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. See par. 1 above. Regulate thread tensions. Use only good-quality thread. 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 work is pushed or pulled. Bobbin case improperly inserted. Insert new needle and push it up as far as it will go. Insert new needle. Note Needle and Thread Chart. Let machine feed the work alone. Only guide the material lightly. When inserting the bobbin case, press against it until t snaps into place. 24 / Cause: 4. Seam is not uniform Tension out of adjustment. Thread too thick, knotty or hard. Bobbin thread wound unevenly. Kinks appear on top and bottom of material. Remedy: Check upper and lower tensions. Use first-class thread only. During bobbin winding, do not hold thread in hand, but pass it through thread retainer stud. Thread machine properly and check both tensions. 5. Machine feeds irregularly or not at all Lint has accumulated between tooth Remove needle plate and clean out lint. rows of feed dog. Feed dog dropped. (Reverse-feed Flick reverse-feed control to the right. control is at left.) 6. Machine works heavily Thread ends in hook raceway. Remove thread ends and put a drop of oil into hook raceway.