36
Trouble Shooting
The machine does not run
smoothly and is noisy
The needle thread breaks.
The bobbin thread breaks.
The needle breaks.
Skipped stitches
1. Threads have been caught in hook mechanism.
2. The feed dog is packed with lint.
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 fabric is not being drawn to the back when sewing is finished.
6. The thread is either too heavy or too fine for the needle.
1. The bobbin thread is not threaded properly in the bobbin case.
2. Lint has collected in the bobbin case.
3. The bobbin is damaged and doesn’t turn smoothly.
1. The needle is incorrectly inserted.
2. The needle is bent or brunt.
3. The needle clamp screw is loose.
4. The tension of the needle thread is too tight.
5. The fabric is not drawn to the back when sewing is finished.
6. The needle is too fine for the fabric being sewn.
7. The pattern selector dial has been turned while the needle was in the material.
1. The needle is incorrectly inserted.
2. The needle is bent or brunt.
3. The needle and/or threads are not suitable for the work being sewn.
4. A BLUE TIPPED needle is not being used for sewing stretch, very fine fabrics and synthetics.
5. The needle thread is not threaded properly.
6. The presser foot pressure is not strong enough.
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See Page 15
Clean the bobbin case.
Exchange bobbin.
See Page 11
See Page 11
See Page 11
See Page 18
See Page 20
See Page 12
See Page 19
See Page 11
See Page 11
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See Page 12
See Page 16
See Page 8
Condition Cause Reference
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