Pfaff hobbylock 786 Owner's Manual - Page 32

Sewing problems and solutions These machines have been developed for easy operation, and there are no difficult adjustments to be made. Sewing problems of the kind described below may occur due to minor adjustment- and operation errors. They can easily be corrected by following the instructions below. Problem ______ Needle breakage Cause Needle bent or point damaged. Needle not fully inserted. Material pulled. Solution Insert new needle. Insert new needle correctly (see page 26). Do not pull material during sewing. Thread breakage Incorrectly threaded. Thread has caught. Thread tension too tight, Needle not fully inserted. Incorrect needle used. Thread correctly (see pages 7-10). Check whether thread catches at the reel stand, etc. Regulate tension. (pages 15, 1 6). Insert needle correctly (page 26). Use needle system 130/705 H Skipped stitches Needle bent or point damaged. Needle not fully inserted. Incorrect needle used. Incorrectly threaded. Insert new needle. Insert needle correctly (page 26). Use needle system 130/705 H Thread correctly (pages 7-10). Incorrect stitch formation Incorrect setting of thread tensions. Set thread tensions correctly (pages 15, 16). Puckered seams 30 Thread tension too tight. Incorrect setting of differential feed. Thread has caught due to incorrect threading. Reduce thread tension (espe cially for light materials) (pages 15, 16). Re-adjust differential feed. Thread correctly (pages 7-10).