Pfaff 74 Owner's Manual - Page 15

.4 DR 860 A Drawing Up the Bobbin Thread Hold needle thread lightly in yew left hand. fw n balance wheel toward you until the needle moves once down and up again. Lightly pull needle thread to dr ow bobbin thread up through the needle hole Place both threads back under the sewing foot Correct Tension Regulation Balanced tensions are essential for sewing If your tension is nor oct you will have perfect scorns as sketched below (Ill). Sketch I fobr Ic. The th reads inter lock on the i inder side of the - Caase Upper tension too loose or lower tension too tight. Sketch II -- The threads interlock on the sin face of the fabric Caase Upper tension too tight or lower tnnsion too loose II -- Ill 18