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Sewing Machine - Brother

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Thread tension<br />

The thread tension will affect the quality of your<br />

stitches. You may need to adjust it when you change<br />

fabric or thread.<br />

Memo<br />

● We recommend that you do a test sample<br />

on scrap of a fabric before you start to sew.<br />

■ Correct tension<br />

Correct tension is important as too much or too<br />

little tension will weaken your seams or cause<br />

puckers on your fabric.<br />

1<br />

a Wrong side<br />

2<br />

b Surface<br />

c Upper thread<br />

d Lower thread<br />

3<br />

4<br />

■ Upper tension is too tight<br />

Loops will appear on the surface of the fabric.<br />

2<br />

Note<br />

● If the bobbin thread was incorrectly<br />

threaded, the upper thread may be too tight.<br />

In this case, refer to “Lower threading”<br />

(page 20) and rethread the bobbin thread.<br />

3<br />

1<br />

5<br />

4<br />

Solution<br />

Reduce the tension by turning the upper<br />

tension-control dial to a lower number.<br />

5<br />

4 3<br />

a Wrong side<br />

b Surface<br />

c Upper thread<br />

d Lower thread<br />

e Loops appear on<br />

surface of fabric<br />

Memo<br />

● When you finish sewing, remove the<br />

bobbin cover and then make sure that the<br />

thread is shown as below. If the thread is<br />

not shown as below, the thread is not<br />

inserted through the tension-adjusting<br />

spring of the bobbin case correctly. Reinsert<br />

the thread correctly. For details, refer to<br />

page 20, 21.<br />

■ Upper tension is too loose<br />

Loops appear on the wrong side of the fabric.<br />

2<br />

Note<br />

● If the upper thread was incorrectly<br />

threaded, the upper thread may be too<br />

loose. In this case, refer to “Upper<br />

threading” (page 23) and rethread the upper<br />

thread.<br />

3<br />

1<br />

4<br />

5<br />

Solution<br />

Increase the tension by turning the upper<br />

tension-control dial to a higher number.<br />

5<br />

4 3<br />

a Wrong side<br />

b Surface<br />

c Upper thread<br />

d Lower thread<br />

e Loops appear on<br />

wrong side of<br />

fabric<br />

41<br />

2

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