Pfaff 131 Owner's Manual - Page 7

Taking the hook a piece for cleaning To clean the hook it is necessary to tip the machine back, then remove the upper case and take off the hook bow by unscrewing the three screws S 1, S 2, and S 3. Then, by turning the balance wheel, bring the hook in correlation with the under bobbin case to the effect that the lower edge of screw hole S 1 and the lower edge of shoulder D are in alignment (fig. 9). Then with thumb and index finger of your left hand, seize the under bobbin case at the central stud Z and lift out the hook body. Thus, the groove R of the under bobbin case withdraws automatically from nose P of the bobbin case holder. After thoroughly cleaning the individual parts from fluff, replace them in reverse order. Begin by turning the balance wheel so that hook and under bobbin case assume the position observed in fig. 9, then, push groove R of the under bobbin case holder and insert the under bobbin case in the body of the hook. This done, replace the hook bow, fastening it with screws S 1, S 2, and S 3 and finally, insert the upper bobbin case 0 (fig. 8) together with the bobbin. 12 Directions for using some attachments of the high speed sewing machine PFAFF 131 For all ordinary sewing work use the presser foot as shown in fig. 4 with which the machine is supplied. For stitching close along the edge use the Edge stitcher which in combination with the ruler is particularly suitable for producing narrow edges. Fig. 10 Edge stitcher with ruler The ruler being adjustable, the distance between the seam and the edge of the cloth may be chosen at will. (fig. 10). The hemmer When starting a hem, fold a length of of an inch of the edge of the material to the width of hem and guide it evenly into the curl of the hemmer, as shown in fig. 11. 3