Baby Lock Symphony (BLSY) Instruction and Reference Guide Addendum - Manual (Page 17)

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■ Finishing the thread ends
a
At the end of the stitching, use a hand sewing
needle to bring the bobbin thread up to the
wrong side of the fabric.
a Wrong side of fabric
b Bobbin thread
b
Working from the wrong side of the fabric, tie
the bobbin and upper threads together by
hand. Cut away excess threads with scissors.
a Wrong side of fabric
b Right side of fabric
c
If the desired results could not be achieved,
adjust the tension of the bobbin thread and of
the upper thread, and then try sewing the
stitching again.
For more details, refer to “Adjusting the Thread
Tension”.
Adjusting the Thread Tension
After sewing trial stitches and checking the sewing
results, adjust the thread tensions if necessary. After
adjusting the tensions, be sure to sew trial stitches in
order to check the sewing results.
■ Adjusting the upper thread tension
Refer to “Adjusting the Thread Tension” in the
Instruction and Reference Guide. We recommend a
setting between 6 and 8 for the upper thread tension.
■ Adjusting the tension of the bobbin thread
If the desired stitching cannot be achieved after
adjusting the upper thread tension, adjust the tension of
the bobbin thread. The tension of the bobbin thread can
be adjusted by turning the slotted-head (–) screw on the
bobbin case (gray) for bobbin work.
a Do not turn the phillips screw (+).
b Adjust with a screwdriver (small).
To increase the tension of the bobbin thread, turn the
slotted-head (–) screw 30° to 45° clockwise.
To decrease the tension of the bobbin thread, turn the
slotted-head (–) screw 30° to 45° counterclockwise.
Note
• If it is difficult to place bobbin thread through the eye
of a hand sewing needle, use a ribbon embroidery
needle to pull the thread up to the wrong side of the
fabric. Otherwise, use an awl to pull up the bobbin
thread.
Note
• To ensure threads do not come undone after being
tied place a drop of fabric glue on knots.
Note
• Turning the screw on the bobbin case (gray) may
push up the spring plate, as shown below.
If this occurs, gently press down the spring plate
with a screwdriver so it is lower than the top surface
of the bobbin case (gray), and then insert the bobbin
case into the machine.
a Spring plate