User manual PFAFF 80

[. . . ] Motor Disengaging Mechanism Power-driven machines feature a lever underneath the balance wheel which serves to swing the motor to its opera tive position. After you have completed sewing, flick the lever to its top position in order to return the motor to the inoperative position. With the motor swung out of engagement, all machines set up on treadle stands can be driven by foot power. 5 DR 510 Removing the Bobbin Case L Raise needle to its highest point. [. . . ] At the same time, press the thread between spool and tension against the top of the machine. Pass thread from right to left through the hole in take-up lever 4 and into slot at left of thread guide 5. Pull about 3” of thread through the needle eye. 4 0R541 13 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 bock under the sewing foot. R 8213 14 Correct Tension Regulation The tensions are properly balanced if both threads interlock in the center of the material. When stitching sheer fab rics set both tensions a little lighter to prevent puckering. Both tensions properly balanced Upper tension too tight or lower tension too loose Upper tension too loose or lower tension too tight. 15 Regulating the Upper Tension Turn tension knob right to increase tension on heavier materials. The numbers on the tension dial indi cate different degrees of tension. Regulating the Lower Tension The bobbin tension rarely needs adjust ing, except far special sewing jobs. Turn it right for tighter tension or left for looser tension. DR 079 R 8029 16 Stitch Length Regulation The stitch length control serves to re gulate the stitch length and to limit t in sewing backwards. The numbers on the control indicate the stitch length (the higher the number, the longer the stitch). 93439 950-00 Triangular tears, small rips or thin spots are best darned by making close stitches back and forth over the area to be darned. To do this, attach the sew ing foot and set the needle plate in the normal position. While darning, guide the material with your left hand and operate the reverse feed control in rhythm with your right hand. DR 559 25 Cording To cord on your Pfaff 80, use a cording foot, a twin needle, and a needle plate with needle plate slot. Twin needles are available for needle distances of 1. 2 (3/64”), 1. 6 (1/16”), 1. 8, 2. 0 (5/64”), 2. 5 (3/32”), 3. 0, and 4. 0 (5/32”) millimeters. Cording feet are available in three varieties, as follows: Pin tucks are made with cording foot No. 93-847680-00 (7 grooves, 3/64” wide each> and a 1. 2-mm twin needle. 93-847675-00 (5 grooves, 1/16” wide each; see ill. ) and a 1. 6-mm twin needle. 93-847671-00 (3 grooves, 5/64” wide each) and a twin needle with a needle distance of 2. 0 or 2. 5 millimeters. the above-mentioned System 130 twin needles, the cording feet, and needle plate No. 93-113 592-00 with needle plate slot ore supplied on special request and at extra cost. Changing the Needle and the Sewing Foot Bring take-up lever to highest point, loosen needle set screw a, and pull ordinary needle out of needle clamp. Insert twin needle into opening of needle clamp and push it up as far as it will go. Tighten needle set screw a securely. DR 020 26 Turn sewing foot thumb screw b to the eft and take out the sewing foot. [. . . ] Remedy: Push needle up as far as it will go and be sure that long groove faces toward you. Machine threaded improperly. Needle too fine or too thick for the thread. Needle Thread Breaks Cause: The above-mentioned may cause thread breakage. Needle Breaks Cause: Bent needle strikes point of sewing hook, Needle too thin or thread too heavy. [. . . ]