Pfaff 132 Owner's Manual - Page 13

material - remove the needle plate and thoroughly clean the feed dog. The material puckers 1. Both tensions are too severe - loosen the setting flange on upper thread tensioner and the screw on bobbin case; (see page 12: "Regulating the Thread Tensions"). 2. The presser foot exerts too much pressur on the work - reduce the pressure by adjusting the regulating screw 13 - see page 1. Uneven stitching 1. The thread is uneven or too thick - change the thread. 2. The tension is wrong - regulate the tension (see p. 12: "Regulating the Thread Tensions"). 3. Upper and under thread are drawing off unequally from reel or bobbin respectively, owing to a dirty set ting flange or bobbin - remove all obstructions. 4. The needle is blunt or bent - use a new needle. 5. The bobbin is wrongly positioned - remove the bobbin case and make sure the bobbin is properly inserted in the case; (see page 9: "Replacing the Bobbin Case"). 22 In all cases where faulty working of your sewing machine cannot be rectified by your following the above directions, please consult your Sewing Machine Dealer. He will al ways be glad to advise you. Fig. W Rear View of machine showing support opened 23