48
Problem
Needle thread
breaks.
Needle bends or
breaks.
Skipped stitches
Seam puckering
Machine does not
operate.
Cause
1. The machine is not threaded correctly.
2. The thread tension is too tight.
3. The needle is bent or blunt.
4. The needle is not set correctly.
5. A wrong needle is used.
1. The needle is bent or blunt.
2. The needle is not set correctly.
3. The needle clamp screw is loose.
4. The fabric is forcedly pulled.
1. The needle is not set correctly.
2. The needle is bent or blunt.
3. The tension is out of balance.
4. The machine is not threaded correctly.
1. The tension is out of balance.
1. The machine is not connected to the power supply.
2. The foot control is not plugged in firmly.
Reference
See pages 16 - 26.
See pages 28, 32, 34.
See page 14.
See page 14.
See page 14.
See page 14.
See page 14.
See page 14.
Do not pull the fabric.
See page 14.
See page 14.
See pages 28, 32, 34.
See pages 18 - 26.
See pages 28, 32, 34.
See page 6.
See page 6.
Troubleshooting
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