28
Condition
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 holder.
2. Lint has collected in the bobbin holder and/or tension spring.
3. The bobbin does not rotate smoothly.
1. The needle is incorrectly inserted.
2. The needle is bent or blunt.
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 had been turned while the needle was in the
material.
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 TIP needle is not used for sewing stretch, very fine fabrics and
synthetics.
5. The needle thread is not threaded properly.
See Pages 25 ~ 26
See Page 11
See Page 12
See Page 5
See Page 6
See Page 16
See Page 5
See Page 10
See Pages 25 ~ 26
Replace the bobbin.
See Page 6
See Page 5
See Page 6
See Page 12
See Page 16
See Page 5
See Page 13
See Page 6
See Page 5
See Page 5
See Page 5
See Page 11
Reference
Cause
The machine does not run
smoothly and is noisy.
The needle thread breaks.
The bobbin thread breaks.
The needle breaks
Skipped stitches
•
Troubleshooting
Summary of Contents for 712T
Page 1: ...INSTRUCTION BOOK MODEL 712T...
