34
Troubleshooting
Condition
Cause
Reference
The needle
thread breaks.
The bobbin
thread breaks.
The needle
breaks.
Skipped stitches
Seam puckering
The fabric is not
fed.
The machine
does not run.
The machine is
noisy.
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 beginning of sewing.
6. The threads are not drawn to the rear after finishing
sewing.
7. The thread is too heavy, or too fine for the needle.
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.
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 are not drawn to the rear after the finishing
sewing.
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 or synthetics.
5. The needle thread is not threaded properly.
6. The wrong needle is being 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.
1. 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. There is thread caught in the hook race.
2. Lint has built up in the shuttle or the shuttle race.
Page 16
Page 20
Page 8
Page 8
Page 22
Page 22
Page 8
Page 14
Page 30
Change the
bobbin
Page 8
Page 8
Page 8
Page 20
Page 22
Page 8
Page 8
Page 8
Page 8
Page 8
Page 16
Change the
needle
Page 20
Page 16
Page 8
Page 30
Page 4
Page 30
Page 12
Page 30
Page 30
Summary of Contents for Hello Kitty
Page 2: ......
Page 3: ...1 ...
Page 45: ...Instruction Book Libro de Instrucciones Livre D Instructions ...