73
Changing the stitch length
> Turn the «Lower Multifunctional knob» to the left to shorten the stitch length.
> Turn the «Lower Multifunctional knob» to the right to elongate the stitch length.
> Touch the icon «Stitch length» (1).
1
> Touch the yellow-framed icon to reset the alteration to basic setting.
Adjusting the upper thread tension
The basic setting of the upper thread tension is set automatically as soon as a stitch pattern or an embroidery
motif is selected.
The upper thread tension is set optimally at the BERNINA factory and the sewing computer has been tested.
Metrosene-/Seralon thread size 100/2 (Company Mettler, Switzerland) is used for upper and bobbin thread.
When of using other types of sewing or embroidery threads, the optimal tension may vary. Therefore it may
be necessary to adjust the upper thread tension according to the sewing or embroidering project as well as
the desired stitch pattern or the embroidery motif individually.
The higher the upper thread tension, the tighter the upper thread which means that the bobbin thread is
pulled up to the top of the fabric. When the upper thread tension is low, the upper thread is less tightened
which means that the bobbin thread is pulled up less.
Alteration of the upper thread tension affect the currently selected stitch pattern or embroidery motif.
Permanent alterations of the upper thread tension for the sewing mode (see page 53) and for the
embroidering mode (see page 57) can be made in the Setup Program.
> Touch the icon «Upper thread tension».
> Move the slide using the touchscreen pen or the finger to increase or reduce the upper thread tension.
> Touch the yellow-framed icon to reset the alteration to basic setting.
035964.50.04_2014-08_Manual_B790_EN
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