12. Checking The Thread Tension - Brother PR-620 Operation Manual

12. Checking the Thread Tension

Check the embroidery to see if it was sewn with the correct thread tension. If the thread tension is not adjusted
correctly, the stitching may be uneven or there may be puckering in the fabric.
■ Correct thread tension
From the wrong side of the fabric, the bobbin
thread should be about one third of the stitch
width.
(Right side)
If the embroidery appears as shown below, the
thread tension is incorrect. Correct the thread
tension.
(Right side)
The tension of the upper thread is too tight,
resulting in the lower thread being visible from
the right side of the fabric.
Loosen the tension dial by turning the dial
counterclockwise.
(Wrong side)
(Wrong side)
(Right side)
The tension of the upper thread is too loose,
resulting in a loose upper thread, loose thread
locks or loops appearing on the right side of the
fabric.
Tighten the tension dial by turning the dial
clockwise.
For details on adjusting the thread tension, refer to
"Adjusting the Thread Tension" on page 85.
Note
● In this tutorial, the thread tension was
checked after embroidering was finished.
However, normally, embroidering should
be temporarily paused and the thread
tension should be checked after the first 100
stitches of each color sewn with each
needle bar.
● The resulting embroidery may not appear as
expected, due to the type or thickness of the
fabric being sewn or to the type of stabilizer
material used. Be sure to sew a trial
embroidery before sewing on your project.
Memo
● In the built-in embroidery patterns, one
pattern is used for checking the thread
tension. For details, refer to "Checking the
thread tension of built-in patterns" on
page 160.
Checking the Thread Tension 45
(Wrong side)
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