Pfaff select 150 Owner's Manual - Page 26
Needle thread tension, Topstitching
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Needle thread tension To get perfect sewing results, the needle and bobbin thread tensions must be perfectly tuned to each other. The normal setting for utility stitches is in the range of 4-5. Check the tension with a wide zigzag stitch. The threads must be interlaced between the two fabric pieces. If the needle thread tension is too high the threads are interlaced above the top fabric. If the needle thread tension is too low, the threads are interlaced below the lower fabric. The adjustment of the needle thread tension is described on page 21. Topstitching Straight stitch G can be sewn using any of 15 various needle positions in such a way that you can always guide the presser foot along the fabric edge for top-stitching work. The top-stitch needle position is determined by the needle position dial. If you wish to top-stitch farther from the fabric edge, simply guide the fabric along the guide marks on the needle plate or use the edge guide (standard accessory No.6). The edge guide is inserted into hole A and is secured with Àxing screw B. Perfect tension Too high tension Too low tension B A 26 Utility stitches and practical sewing