Singer 1 One Instruction Manual 26 - Page 70

Troubleshooting Chart

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28. TROUBLESHOOTING CHART Problem Fabric does not feed well Solution - Lengthen stitch length. - Increase presser foot pressure for heavy weight fabric. - Decrease presser foot pressure for lightweight fabric. Needle breaks - Insert needle correctly. - Do not pull fabric while sewing. - Tighten needle set screw. - Use a larger needle on heavy fabrics. Thread breaks - 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 only high quality thread. - Loosen thread tension. Stitch skip - Insert new needles, current needles may be bent or have a blunt point. Use only Singer Branded Style 2022 Needles - Tighten needle set screw. - Insert needles correctly. - Change type or size of needles. - Check threading. - Increase presser foot pressure. - Use a high quality thread. Irregular stitches - Fine tune thread tension. - Check for tangled or caught thread. - Check threading. Fabric puckers - Loosen thread tension. - Check for tangled or caught thread. - Use high quality lightweight thread. - Shorten stitch length. - Decrease presser foot pressure for lightweight fabrics. Irregular trimming - Check alignment of knives. - Replace one or both knives. Fabric jams Machine does not operate - 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. 69 Page 31 32 32 15 38 15 15 16~29 30 15 9 70 34~49 9 15 15 15 16~29 32 70 39~49 30 16~29 39~52 30 70 31 32 65 65 12 30 12

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6
9
28. TROUBLESHOOTING CHART
Solution
Problem
Page
Fabric does not feed well
- Lengthen stitch length.
- Increase presser foot pressure for heavy weight fabric.
- Decrease presser foot pressure for lightweight fabric.
Needle breaks
- Insert needle correctly.
- Do not pull fabric while sewing.
- Tighten needle set screw.
- Use a larger needle on heavy fabrics.
Thread breaks
- 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 only high quality thread.
- Loosen thread tension.
Stitch skip
- Insert new needles, current needles may be bent or have a blunt
point. Use only Singer Branded Style 2022 Needles
- Tighten needle set screw.
- Insert needles correctly.
- Change type or size of needles.
- Check threading.
- Increase presser foot pressure.
- Use a high quality thread.
Irregular stitches
- Fine tune thread tension.
- Check for tangled or caught thread.
- Check threading.
Fabric puckers
- Loosen thread tension.
- Check for tangled or caught thread.
- Use high quality lightweight thread.
- Shorten stitch length.
- Decrease presser foot pressure for lightweight fabrics.
Irregular trimming
- Check alignment of knives.
- Replace one or both knives.
Fabric jams
- Close looper cover before sewing.
- Check for tangled or caught thread.
- Compress thick layers of fabric with conventional machine before
sewing with overlock.
Machine does not operate
- Connect machine to power source.
31
32
32
15
38
15
15
16~29
30
15
9
70
34~49
9
15
15
15
16~29
32
70
39~49
30
16~29
39~52
30
70
31
32
65
65
12
30
12