Brother International Innov-ís 40 Users Manual - English - Page 48

Adjusting the thread tension

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After reaching the end of the stitching, press e the reverse/reinforcement stitch button once. ■ Correct thread tension The upper thread and the bobbin thread should cross near the center of the fabric. Only the upper thread should be visible from the right side of the fabric, and only the bobbin thread should be visible from the wrong side of the fabric. a a Wrong side of fabric b Right side of fabric a Reverse/reinforcement stitch button • This step is not necessary if a stitch such as those for sewing buttonholes and bar tacks is selected where reinforcement stitches are b c c Upper thread d Bobbin thread 2 automatically sewn. X After reverse/reinforcement stitches are sewn, the sewing machine stops. d ■ Upper thread is too tight If the bobbin thread is visible from the right side of the fabric, the upper thread is too tight. Memo ● Reverse/reinforcement stitches WILL NOT be sewn until (reverse/reinforcement stitch button) is pressed. (start/stop a b c e d a Wrong side of fabric b Right side of fabric c Upper thread d Bobbin thread e The bobbin thread is visible from the right side of the fabric. Turn the thread tension dial to the left to loosen the upper thread. button) may be pressed to stop stitching when needed such as for pivoting corners. Adjusting the thread tension The tensions of the upper thread and of the bobbin thread (thread tension) should be adjusted so that they are equal. If the thread and needle combination is correct for the type of fabric being sewn (according to "Needle types and their uses" (page 28)), the thread tension will automatically be adjusted to the appropriate setting. However, if the preset thread tension does not give the desired result or if you are sewing with special thread or on special fabric, use the thread tension dial to increase or decrease the tension of the upper thread. ■ Upper thread is too loose If the upper thread is visible from the wrong side of the fabric, the upper thread is too loose. a e a Wrong side of fabric b Right side of fabric b c Upper thread d Bobbin thread e The upper thread is c d visible from the wrong side of the fabric. Turn the thread tension dial to the right to tighten the upper thread. 47

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47
2
e
After reaching the end of the stitching, press
the reverse/reinforcement stitch button once.
a
Reverse/reinforcement stitch button
• This step is not necessary if a stitch such as
those for sewing buttonholes and bar tacks is
selected where reinforcement stitches are
automatically sewn.
After reverse/reinforcement stitches are
sewn, the sewing machine stops.
Memo
●
Reverse/reinforcement stitches
WILL NOT
be sewn until
(reverse/reinforcement
stitch button) is pressed.
(start/stop
button) may be pressed to stop stitching
when needed such as for pivoting corners.
Adjusting the thread tension
The tensions of the upper thread and of the bobbin
thread (thread tension) should be adjusted so that
they are equal.
If the thread and needle combination is correct for
the type of fabric being sewn (according to “Needle
types and their uses” (page 28)), the thread tension
will automatically be adjusted to the appropriate
setting. However, if the preset thread tension does
not give the desired result or if you are sewing with
special thread or on special fabric, use the thread
tension dial to increase or decrease the tension of the
upper thread.
■
Correct thread tension
The upper thread and the bobbin thread should
cross near the center of the fabric. Only the upper
thread should be visible from the right side of the
fabric, and only the bobbin thread should be
visible from the wrong side of the fabric.
■
Upper thread is too tight
If the bobbin thread is visible from the right side
of the fabric, the upper thread is too tight.
Turn the thread tension dial to the left to
loosen the upper thread.
■
Upper thread is too loose
If the upper thread is visible from the wrong side
of the fabric, the upper thread is too loose.
Turn the thread tension dial to the right to
tighten the upper thread.
a
b
c
d
a
Wrong side of
fabric
b
Right side of fabric
c
Upper thread
d
Bobbin thread
a
b
c
e
d
a
Wrong side of
fabric
b
Right side of fabric
c
Upper thread
d
Bobbin thread
e
The bobbin thread
is visible from the
right side of the
fabric.
a
b
c
e
d
a
Wrong side of
fabric
b
Right side of fabric
c
Upper thread
d
Bobbin thread
e
The upper thread is
visible from the
wrong side of the
fabric.