Singer 1 One Instruction Manual 19 - Page 46

25. TROUBLESHOOTING CHART Problem Solution Fabric does not feed well Needle breaks Thread breaks Stitches skip Irregular stitches Fabric puckers Irregular trimming Fabric jams Machine does not operate ' - Lengthen stitch length. - Increase presser foot pressure for heavy weight fabric. - Decrease presser foot pressure for light weight fabric. - Insert needle correctly. - Do not pull fabric while sewing. - Tighten needle set screw. - Use a larger needle on heavy fabrics. - Check threading - Check for tangled or caught thread - Insert needle correctly - Insert new needle, current needle may be bent or have a blunt point. - Use a high quality thread. - Loosen thread tension. - Insert new needle, current needle may be bent or have a blunt point. - Tighten needle set screw. - Insert needle correctly. - Change type or size of needle. - Check threading. - Increase presser foot pressure. - Use a high quality thread. - Balance thread tension. - Check for tangled or caught thread. - Check threading. - Loosen thread tension. - Check for tangled or caught thread - Use high quality light weight thread. - Shorten stitch length. - Decrease presser foot pressure for light weight fabrics. - Check alignment of knives. - Replace one or both knives. - Close looper cover before sewing. - Check for tangled or caught thread. - Compress thick layers of fabric with conventional machine before sewing with overlock. - Connect machine to power source. Page 21 22 22 11 28 11 7 12 19 20 11 7 46 29- 34 7 11 11 7 12 19 22 46 29- 34 20 12.- 19 29- 34 20 46 21 22 43 43 9 20 9 45