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See page 10.
See page 14.
See pages 13.
See pages 13.
See page 12.
See pages 11, 13.
See page 9.
See page 19.
Replace the bobbin.
See pages 13.
See pages 13.
See pages 13.
See pages 13.
See pages 11, 13.
See page 13.
See page 10.
Change the needle.
See page 14.
See page 10.
See pages 11, 13.
Make the stitch shorter.
See page 19.
Make the stitch longer.
See page 14.
See pages 11, 13.
See page 4.
See page 19.
See page 19.
See page 19.
See page 19.
1. The needle thread is not threaded properly.
2. The needle thread tension is too tight.
3. The needle is bent or blunt.
4. The needle is incorrectly inserted.
5. The needle thread and the bobbin thread are not set under the
presser foot when starting to sew.
6. The thread is either too heavy or too fine for the needle.
7. The thread is feeding unevenly off the spool.
1. The bobbin thread is not threaded properly in the bobbin case.
2. Lint has collected in the hook area.
3. The bobbin is damaged and doesn't turn smoothly.
1. The needle is incorrectly inserted.
2. The needle clamp screw is loose.
3. The needle is too fine for the fabric being used.
1. The needle is incorrectly inserted, bent or blunt.
2. The needle and/or fabrics are not suitable for the work being sewn.
3. A ballpoint needle is not used when sewing stretch, very fine fabrics
or synthetics.
4. The needle thread is not threaded properly.
5. A poor quality and improper needle type is being used.
Use only HL x 5 needles.
1. The needle thread tension is too tight.
2. The needle thread is not threaded properly.
3. The needle is too heavy for the fabric being sewn.
4. The stitch length is too long for the fabric.
1. The feed dog is packed with lint.
2. The stitches are too fine.
1. The needle thread tension is too loose.
2. The needle is either too heavy or too fine for the thread.
3. Knee lifter is being lightly pressed by knee.
1. The machine is not plugged in.
2. Thread has been caught in the hook and bobbin case area.
1. Thread has been caught in the hook and bobbin case area.
2. Lint has built up in the hook area or bobbin case.
3. The machine needs oiling.
Troubleshooting
Condition
The needle thread
breaks
The bobbin thread
breaks
The needle breaks
Skipped stitches
Seam puckering
Fabric feeding problems
Thread loops on
underside of fabric
Power is off to machine
Unusual noises made by
machine
Reference
Cause