• Tension is too loose
1Needle thread (Top thread)
2Bobbin thread (Bottom thread)
3 To tighten tension
4 Right side (Top side) of fabric
5 Wrong side (Bottom side) of fabric
The needle thread shows through on the wrong side
of the fabric, and the stitch feels bumpy. Turn the dial to a higher tension setting number to tighten the needle thread tension.
Adjust the Needle Thread Tension for a Zigzag Stitch
For an ideal zigzag stitch, the bobbin thread does not show on the right side (Top side) of the fabric, and the needle thread shows slightly on the wrong side (Bottom side) of the fabric.
See the illustrations for the correct appearance.
To match this appearance, adjust the needle tension.
• Correct tension
1Right side (Top side) of fabric
2Wrong side (Bottom side) of fabric
Minimize the amount of needle thread visible on the wrong side (Bottom side) of the fabric without causing excessive puckering, or causing the bobbin thread to show on the right side (Top side) of the fabric. Results vary with fabric, thread and sewing conditions.
• Tension is too tight
1Right side (Top side) of fabric
2Wrong side (Bottom side) of fabric
The corner of each zigzag pulls together on the right side of the fabric.
• Tension is too loose
1Right side (Top side) of fabric
2Wrong side (Bottom side) of fabric
The corner of each zigzag pulls together on the wrong side of the fabric.
5
4
1
2
5 
4 
3
3 
12
12
12
32
