Troubleshooting - Janome 9102D Instruction Book

Troubleshooting

Condition
The fabric is not
being fed
smoothly.
The needle
breaks.
The thread
breaks.
Skipped stitches
The seam is not
sewn neatly.
Seam puckering.
The machine
does
not operate.
The fabric is not
cut neatly.
80
Cause
1. The feed dog is packed with lint.
2. The presser foot has been raised.
3. Pressure of the foot is too weak.
1. The needle is incorrectly inserted.
2. The needle is bent or blunt.
3. The fabric is forcedly pulled.
1. The machine is not correctly threaded.
2. The needle or looper thread tension is too tight.
3. The needle is incorrectly inserted.
4. The needle is bent or blunt.
1. The needle is bent or blunt.
2. The machine is not correctly threaded.
3. The needle is incorrectly inserted.
1. The needle and/or looper thread tensions are
not correctly adjusted.
2. The machine is not correctly threaded.
3. The needle and/or the thread are not suitable
for the fabric being sewn.
4. The thread is not between the tension discs.
1. The needle or looper thread tension is too tight.
2. The machine is not correctly threaded.
3. The differential feed dial is not correctly
adjusted.
1. The machine has not been plugged in firmly.
2. The power switch is turned off.
1. The position of the upper knife is not adjusted
properly.
2. The upper knife is dull.
Reference
See page 76.
Lower the presser foot.
See page 18
See page 16.
See page 16.
Pull the fabric lightly.
See pages 28 ~ 46 and 56.
See pages 52 ~ 54 and 58, 66.
See page 16.
See page 16.
See page 16.
See pages 28 ~ 46 and 56.
See page 16.
See pages 52 ~ 54 and 58, 66.
See pages 28 ~ 46 and 56.
See pages 60, 62, 70 and 72.
See pages 32, 38, 42 and 46.
See pages 52 ~ 54 and 58, 66.
See pages 28 ~ 46 and 56.
See page 20.
See page 10.
See page 10.
See page 74.
Replace the upper knife.
(See page 74.)