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Adjusting The Alternate Bobbin Case (with No Color On The Screw) - Brother Sewing Machine Operation Manual

Computerized embroidery and sewing machine.
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EMBROIDERY
Adjusting the alternate bobbin case
(with no color on the screw)
When using the embroidery bobbin thread provided,
please be sure to choose the green marked bobbin
case when performing utility stitch sewing and
embroidery functions. When in the embroidery
function mode, the alternate bobbin case (with no
color on the screw) should be selected when
substitute embroidery bobbin threads (other than
what is accompanied with your machine) are being
used. The alternate bobbin case (with no color on the
screw) can be easily adjusted when bobbin tension
changes are required to accommodate different
bobbin threads. Refer to "Sewing attractive finishes"
(page 166).
To adjust the bobbin tension for embroidery function,
using the alternate bobbin case (with no color on the
screw), turn the slotted screw (-) with a (small)
screwdriver.
a Do not turn a phillips screw (+).
b Adjust with a screwdriver (small).
■ Correct tension
Upper thread slightly appears on the wrong side
of fabric.
1
a Right side
b Wrong side
■ Bobbin thread is too loose
Bobbin thread appears slightly on the right side of
fabric.
1
a Right side
b Wrong side
If this occurs, turn the slotted screw (-) clockwise,
being careful not to over-tighten the screw,
approximately 30-45 degrees to increase bobbin
tension.
174
2
2
■ Bobbin thread is too tight
Upper thread on the right side of fabric seems to
be lifting/looping and bobbin thread is not seen
on the wrong side of fabric.
1
a Right side
b Wrong side
If this occurs, turn the slotted screw (-)
counterclockwise, being careful not to over-
loosen the screw, approximately 30-45 degrees to
decrease bobbin tension.
CAUTION
● When adjusting the alternate bobbin case,
be sure to remove the bobbin from the
alternate bobbin case.
● DO NOT adjust the position of the
phillips (+) screw on the alternate bobbin
case as this may result in damage to the
bobbin case, rendering it unusable.
● If the slotted screw (-) is difficult to turn,
do not use force. Turning the screw too
much or providing force in either
(rotational) direction may cause damage
to the bobbin case. Should damage occur,
the bobbin case may not maintain proper
tension.
2

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