Pfaff select 150 Owner's Manual - Page 20
system, Integrated Dual Feed
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The IDT™ system (Integrated Dual Feed) For sewing any fabric precisely PFAFF® provides the ideal solution: the Integrated Dual Feed, IDT™ system. As on industrial machines, the IDT™ system feeds the fabric from the top and bottom at the same time at the same stitch length. The fabric is fed precisely. On light fabrics such as silk or rayon the dual feed prevents puckering of the seam. The even feeding action also ensures perfect matching of checked and striped fabrics. The IDT™ system keeps all layers of quilt projects aligned to prevent stretching of the top layers. Engaging the IDT™ system Raise the presser foot. Press the IDT™ system down until it engages. Important! For all work with the Integrated Dual Feed IDT™ system, use presser feet with the center back cut-out. Disengaging the IDT™ system Hold the Dual Feed with two Àngers at the ribbed ankle. Press the IDT™ system down, then pull it away from you and release the IDT™ system slowly upward. 20 Operate your sewing machine