Pfaff 230-260 Manual - Page 35

3. Needle Breaks Cause: Bent needle strikes point at sewing hook. Needle too thin or thread too heavy. Fabric pulls needle so it bends and strikes needle plate. Bobbin case inserted incorrectly. Remedy: Replace needle at once to prevent further damage. Use correct needle ond thread sizes. Don't lorce the feeding motion. Guide the material lightly. Push bobbin case until you hear it snap into place. 4. Faulty Stitch Formation Cause: Remedy Improper tension. Adjust tensions as instructed. Thread too heavy, knotty or hard. Use only first-rate thread -- the correct size for the needle and fabric. Bobbin unevenly wound. Don't run thread over finger when winding the bobbin, but lead it around tension stud on top cover and t1 g hrh o thread guide Ii. f Pieces of thread butween tension discs. Release upper tension by setting it on "0" and remove thread. 5. Machine Feeds Improperly Cause: Feed dog set too low and does not rise up enough above needle plate level. Remedy: Hove your PloIf dealer make the necessary adjust macnt. 30 H