Troubleshooting – SINGER 384.13012 (Sold at Sears) User Manual
Page 74
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Troubleshooting
Condition
Cause
Reference ^
The needle thread
breaks.
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 when sewing is starting.
6. The fabric is not drawn to the rear when sewing is finished .
7. The thread is too heavy or too fine for the needle.
Page 28
Pages 30, 32
Page 18
Page 18
Page 28
Page 36
Page 77
The bobbin thread
breaks.
1. The bobbin thread is not threaded properly in the bobbin
case and shuttle.
2. Lint has collected in the shuttle area.
3. The bobbin is damaged and doesn't turn smoothly.
Page 26
Page 70
Change the bobbin
The needle breaks.
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 fabric is not drawn to the rear when sewing is finished.
6. The needle is too fine for the fabric being sewn.
Page 18
Page 18
Page 18
Pages 30, 32
Page 36
Page 77
Skipped stitches
1. The needle is incon-ectly inserted.
2. The needle is bent or blunt.
3. The needle and/or threads are not suitable for the work being
sewn.
4. The needle thread is not threaded properly.
5. The wrong needle is used.
Page 18
Page 18
Page 77
Page 28
Change the needle
Seam puckering
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.
Pages 30, 32
Page 28
Page 77
Make stitch denser
The cloth is not
feeding smoothly.
1. The feed dog is packed with lint.
2. The stitches are too fine.
3. The feed dog is not raised after “drop feed” sewing.
Page 68
Make stitch coarser
Page 42
The machine
doesn’t work.
1. The machine is not plugged in.
2. A thread is caught in the shuttle race.
3. Push-clutch is disengaged.
Page 14
Page 70
Pages 22,24
Patterns are
distorted.
1. The stitch is not balanced.
Page 34
Noisy operation
1. There is thread caught in the hook race.
2. Lint has built up in the shuttle or the shuttle race.
Page 70
Page 70
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