Pfaff 92 Owner's Manual - Page 28
Pfaff 92 Manual
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1. Machine Sldps Stitches Cause: Needle incorrectly inseçted. Wrong needle. Needle bent. Machine threaded improperly. Needle too fine or too thick for the thread. Remedy: Push needle up as far as it will go and be sure that the long groove faces toward yOu, and flat side of shank away from you. Choose the carrect needle from chart on page 14. (For ordinary sewing, use System 130 R needles.) Insert new needle. Check and correct threading as instructed on pages 16 and 17. Use correct needle and thread (see chart on page 14). 2. Needle Thread Breaks Cause: The above mentioned may cause thread breakage. Thread tension too tight. Poor, knotty or rotten thread used. Hook raceway is jammed with thread or needs oiling. Burrs or sharp edges on needle plate slot. Remedy: See remedies listed under 1. above. Adjust tensions as instructed. Use good quality threads only. Clean and oil hook raceway. Polish needle plate slot with fine emery cloth. 1 r In tij Ij ¶ j