Troubleshooting - ALFA COVER Style Manual De Instrucciones

Troubleshooting

Problem
Needle thread breaks.
Needle bends or breaks.
Skipped stitches
Seam puckering
Machi ne does not operate 1. The machi ne is not connected to the power supply.
1. The machi ne 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 machi ne is not threaded correctly.
1. The tension is out of balance.
2. The foot control is not plugged in firmly.
48
Cause Reference
See pages 33-38
See pages 39-43
See page 31
See page 31
See page 31
See page 31
See page 31
See page 31
Do not pull the
fabric.
See page 31
See page 31
See pages 39-43
See pages 33 - 38
See pages 39-43
See page 27
See page 27