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The needle thread
breaks.
The bobbin thread
breaks.
The needle breaks.
Skipped stitches
Seam puckering
The cloth is not
feeding smoothly.
The machine
doesn't work.
Patterns are
distorted.
Noisy operation
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 properly
under the presser foot at the start of sewing.
6. The threads were not drawn to the rear after the previous use.
7. The thread is too heavy or too fine for the needle.
1. The bobbin thread is not threaded properly in the bobbin holder.
2. Lint has collected in the bobbin holder.
3. The bobbin is damaged and doesn't turn smoothly.
1. The needle is incorrectly inserted.
2. The needle is bent or blunt.
3. The needle clamp screw is loose.
4. The needle thread tension is too tight.
5. The threads were not drawn to the rear after the previous use.
6. The needle is too fine for the fabric being sewn.
1. The needle is incorrectly inserted.
2. The needle is bent or blunt.
3. The needle and/or threads are not suitable for the work being
sewn.
4. A blue needle is not being used for sewing stretch, very fine
fabrics and synthetics.
5. The needle thread is not threaded properly.
6. The wrong needle is used.
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 stitches are too fine.
2. The feed dog is not raised after “drop feed” sewing.
3. The feed dog is packed with lint.
1. The machine is not plugged in.
2. A thread is caught in the shuttle race.
3. The push-clutch is disengaged.
1. The stitch is not balanced.
1. There is thread caught in the hook race.
2. Lint has built up in the shuttle or the shuttle race.
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Page 84
Change the bobbin
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Page 10
Page 10
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Page 38
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Page 10
Page 10
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Page 10
Pages 28, 30
Page 26
Page 16
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Troubleshooting
Condition Cause Reference
For customer assistance call or e-mail:
1-877-SEWING-U (1-877-739-4648)
9 am - 4:30 pm, CST, Monday - Friday
support@kenmore-sewing.com