Brother LX2500 operation manual Thread tension, Start sewing, Upper tension is too tight

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6Start sewing.

For details on starting to sew, refer to “Starting sewing” on page 18.

X Two lines of stitching are sewn parallel to each other.

CAUTION

●When changing the sewing direction, be sure to raise the needle from the fabric, and then raise the presser foot lever and turn the fabric. Otherwise the needle may break or the machine may be damaged.

Thread tension

The tension of the thread will affect the quality of your stitches. You may need to adjust it when you change fabric or thread.

Memo

● We recommend that you do a test sample

on scrap of a fabric before you start to sew.

■ Correct tension

Correct tension is important as too much or too little

tension will weaken your seams or cause puckers

■Upper tension is too tight

Loops will appear on the surface of the fabric.

Note

●If the bobbin thread was incorrectly threaded, the upper thread may be too tight. In this case, refer to “Lower threading” on page 13 and rethread the bobbin thread.

2

2

1

1 Surface of fabric

2 Back of fabric

3 Upper thread

35 4 Lower thread

45 Loops appear on surface of fabric

Solution

Reduce the tension by turning the upper tension control dial to a lower number.

■Upper tension is too loose

Loops appear on the back of the fabric.

Note

●If the upper thread was incorrectly threaded, the upper thread may be too loose. In this case, refer to “Upper threading” on page 14 and rethread the upper thread.

on your fabric.

2

1

1 Surface of fabric

2 Back of fabric

33 Upper thread

25

1

3

4

1Surface of fabric

2 Back of fabric

3 Upper thread

4 Lower thread

5 Loops appear on back of fabric

44 Lower thread

Solution

Increase the tension by turning the upper tension control dial to a higher number.

22