Bernina 540 - Determining the Buttonhole Length with the Buttonhole Foot with Slide No. 3 A; Determining the Buttonhole Length with Buttonhole Foot No. 3 C (Optional Accessory)

Buttonholes
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0.6
> Touch the icon «Buttonhole slit width».
> Turn the «Upper Multifunctional knob» or the «Lower Multifunctional knob» to adjust the buttonhole slit
width as desired.
9.8 Determining the buttonhole length with the Buttonhole foot with
slide No. 3A
The button can be centered in the yellow circle on the display. By turning the «Upper/Lower
Multifunction knobs»
, the yellow circle can be enlarged or downsized to determine the diameter of the
button.
Additionally to the diameter of the button, 2 mm are added automatically for the buttonhole length. If the
diameter of the button is 14mm, the buttonhole length is calculated 16mm.
Prerequisite:
• The Buttonhole foot with slide No. 3A is attached.
> Touch the icon «Buttonholes».
> Select the buttonhole.
> Touch the icon «i»-Dialog.
16.0
> Touch the icon «Adjust the buttonhole length».
> Turn the «Upper Multifunction knob» or the «Lower Multifunction knob» to adjust the buttonhole
length.
9.9 Determining the buttonhole length with Buttonhole foot No. 3C
(optional accessory)
With the Buttonhole foot No. 3C (optional accessory) the buttonhole length must be determined via the
stitch counter function. The stitch counter function is suitable for all types of buttonholes. The left
buttonhole bead is sewn forward, the right buttonhole bead is sewn in reverse. If alterations of the balance
are made, the stitch counter function has to be saved for every buttonhole separately.
Prerequisite:
• The Buttonhole foot No. 3C (optional accessory) is attached.
> Touch the icon «Buttonholes».
> Select the buttonhole.
> Touch the icon «i»-Dialog.
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> Touch the icon «Program the length with the stitch counter».
> Sew the desired buttonhole length.
> Stop the machine.
> Push the button «Quick reverse» so that the machine sews the lower bartack and the second bead in
reverse.
> Stop the machine at the height of the first stitch.
> Push the button «Quick Reverse» so that the machine sews the upper bartack and the securing stitches.
– The length of the buttonhole remains saved and every subsequent buttonhole is sewn identically until
the machine is switched off.