Руководство По Работе для Brother SB3129
SEWING BASICS ———————————————————————————————————————————————————
54
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.
equal.
Changing the tension of the
upper thread
upper thread
If the thread and needle combination is correct for
the type of fabric being sewn (according to “Needle
types and their uses” on page 33), 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 under the upper cover to adjust the
tension of the upper thread.
the type of fabric being sewn (according to “Needle
types and their uses” on page 33), 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 under the upper cover to adjust 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.
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.
of the fabric, the upper thread is too tight.
Note
● If the bobbin thread was incorrectly
threaded, the upper thread may be too tight.
In this case, refer to “Installing the bobbin”
on page 22 and rethread the bobbin thread.
In this case, refer to “Installing the bobbin”
on page 22 and rethread the bobbin thread.
Turn the thread tension dial to the left to loosen
the upper thread.
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.
of the fabric, the upper thread is too loose.
Note
● If the upper thread was incorrectly
threaded, the upper thread may be too
loose. In this case, refer to “Upper
Threading” on page 24 and rethread the
upper thread.
loose. In this case, refer to “Upper
Threading” on page 24 and rethread the
upper thread.
Turn the thread tension dial to the right to tighten
the upper thread.
the upper thread.
1 Wrong side of
fabric
2 Right side of
fabric
3 Upper thread
4 Bobbin thread
4 Bobbin thread
1 Wrong side of
fabric
2 Right side of
fabric
3 Upper thread
4 Bobbin thread
5 The bobbin
4 Bobbin thread
5 The bobbin
thread is visible
from the right
side of the
fabric.
from the right
side of the
fabric.
1
2
3
4
1
2
3
4
5
1 Wrong side of
fabric
2 Right side of
fabric
3 Upper thread
4 Bobbin thread
5 The upper
4 Bobbin thread
5 The upper
thread is visible
from the wrong
side of the
fabric.
from the wrong
side of the
fabric.
5
1
2
3
4