Pfaff 73 Owner's Manual - Page 17

DR 615 Correct Tension Regulation Balanced tensions are essential for sewing. If your tension is correct, you will have perfect seams as sketched below (lii). Sketch I - The threads interlock on the underside of the fabric. C a u s e: Upper tension too loose or lower tension too tight. Sketch Ii The threads interlock on the surface of the fabric. C a u s e: Upper tension too tight or lower tension too loose. A Drawing Up the Bobbin Thread Hold needle thread lightly in your left hand. Turn balance wheel toward you until the needle moves down and up again. Lightly pull needle thread to draw bobbin thread up through the needle hole. Place both threads back under the sewing foot. II III 16