Troubleshooting - Janome HD9 Instruction Book

Troubleshooting

Condition
The needle thread 1. The needle thread is not threaded properly.
breaks. 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 under the presser
6. The thread is either too heavy or too fine for the needle.
The bobbin thread 1. The bobbin thread is not threaded properly in the bobbin case.
breaks. 2. Lint has collected in the hook race.
3. The bobbin is damaged and doesn't turn smoothly.
The needle breaks. 1. The needle is incorrectly inserted.
2. The needle clamp screw is loose.
3. The needle is too fine for the fabric being used.
Skipped stitches 1. The needle is incorrectly inserted, bent or blunt.
2. The needle and/or fabrics are not suitable for the work being sewn.
3. The needle thread is not threaded properly.
4. A poor quality needle is being used.
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.
The cloth is not 1. The feed dog is packed with lint.
feeding smoothly. 2. The stitches are too fine.
Stitches form loops 1. The needle thread tension is too loose.
below the fabric. 2. The needle is either too heavy or too fine for the thread.
The machine does 1. The machine is not plugged in.
not work. 2. Thread has been caught in the hook race.
3. The presser foot is raised.
The machine does 1. Thread has been caught in the hook race.
not run smoothly 2. Lint has built up in the hook race or bobbin holder.
and is noisy. 3. The machine needs oiling.
foot when starting sewing.
Cause
44
Reference
See pages 20, 24
See pages 20, 34
See page 32
See page 32
See page 30
See page 32
See page 18
See page 42
Replace the bobbin.
See page 32
See page 32
See page 32
See page 32
See page 32
See pages 20, 24
Change the needle
See pages 20, 34
See pages 20, 24
See page 32
Make the stitch
shorter
See page 42
Make the stitch longer
See pages 20, 34
See page 32
See page 8
See page 42
See page 12
See page 42
See page 42
See page 42