Brother International Innov-is NQ3700D Operation Manual - Page 94

Adjusting the bobbin case with no color on, the screw

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Embroidering ■ Upper thread is too tight The bobbin thread will be visible on the right side (top) of the fabric. In this instance, decrease the upper thread tension. 1 Right side (top) of fabric 2 Wrong side (bottom) of fabric Adjusting the bobbin case (with no color on the screw) The bobbin case (with no color on the screw) can be adjusted when bobbin tension changes are required to accommodate different bobbin threads. Refer to "Embroidering attractive finishes" on page 81. ■ Upper thread is too loose The upper thread has slack. In this instance, increase the upper thread tension. 1 Right side (top) of fabric 2 Wrong side (bottom) of fabric To adjust the bobbin tension for embroidery function, using the bobbin case (with no color on the screw), turn the slottedhead screw (-) with a screwdriver (small). 1 Do not turn the phillips screw (+). 2 Adjust with a screwdriver (small). Note • If the upper thread is not threaded correctly or the bobbin is not installed correctly, it may not be possible to set the correct thread tension. If the correct thread tension cannot be achieved, rethread the upper thread and insert the bobbin correctly. • With [Embroidery Tension] on the setting screen, the tension of the upper thread can be adjusted for embroidering. The selected setting will be applied to all patterns. When embroidering, if the overall tension of the upper thread is too tight or too loose, adjust it from the setting screen. Press to tighten the upper thread tension and press to loosen the upper tension. If an individual embroidery pattern needs additional fine tuning, refer to "Adjusting thread tension" on page 91. ■ Correct tension Upper thread slightly appears on the wrong side of fabric. 1 Right side 2 Wrong side ■ Bobbin thread is too loose Bobbin thread appears slightly on the right side of fabric. 1 Right side 2 Wrong side If this occurs, turn the slotted-head screw (-) clockwise, being careful not to over-tighten the screw, approximately 30-45 degrees to increase bobbin tension. ■ 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 Right side 2 Wrong side If this occurs, turn the slotted-head screw (-) counterclockwise, being careful not to over-loosen the screw, approximately 30-45 degrees to decrease bobbin tension. 92

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Embroidering
92
■
Upper thread is too tight
The bobbin thread will be visible on the right side (top) of
the fabric. In this instance, decrease the upper thread
tension.
■
Upper thread is too loose
The upper thread has slack. In this instance, increase the
upper thread tension.
Adjusting the bobbin case (with no color on
the screw)
The bobbin case (with no color on the screw) can be adjusted
when bobbin tension changes are required to accommodate
different bobbin threads. Refer to “Embroidering attractive
finishes” on page 81.
To adjust the bobbin tension for embroidery function, using
the bobbin case (with no color on the screw), turn the slotted-
head screw (-) with a screwdriver (small).
■
Correct tension
Upper thread slightly appears on the wrong side of fabric.
■
Bobbin thread is too loose
Bobbin thread appears slightly on the right side of fabric.
If this occurs, turn the slotted-head screw (-) clockwise,
being careful not to over-tighten the screw, approximately
30-45 degrees to increase bobbin tension.
■
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.
If this occurs, turn the slotted-head screw (-)
counterclockwise, being careful not to over-loosen the
screw, approximately 30-45 degrees to decrease bobbin
tension.
1
Right side (top) of
fabric
2
Wrong side (bottom)
of fabric
1
Right side (top) of
fabric
2
Wrong side (bottom)
of fabric
Note
•
If the upper thread is not threaded correctly or the
bobbin is not installed correctly, it may not be
possible to set the correct thread tension. If the
correct thread tension cannot be achieved,
rethread the upper thread and insert the bobbin
correctly.
•
With [Embroidery Tension] on the setting screen,
the tension of the upper thread can be adjusted for
embroidering. The selected setting will be applied
to all patterns.
When embroidering, if the overall tension of the
upper thread is too tight or too loose, adjust it from
the setting screen. Press
to tighten the upper
thread tension and press
to loosen the upper
tension. If an individual embroidery pattern needs
additional fine tuning, refer to “Adjusting thread
tension” on page 91.
1
Do not turn the
phillips screw (+).
2
Adjust with a
screwdriver (small).
1
Right side
2
Wrong side
1
Right side
2
Wrong side
1
Right side
2
Wrong side