Bernina Virtuosa 153 Instruction Manual & Sewing Manual page 16

Manual multiple-step keyhole buttonhole
1 2
3 4
Automatic standard and *stretch buttonholes with auto length
* virtuosa 163 only
2 3
The individual steps blink on the screen.
Sew both forward and reverse beads at the same speed.
1. sew straight stitch forwards, stop the machine, press the quick
reverse-button
2. sew the eye and the first bead in reverse, stop the machine at the
first stitch (buttonhole begin), press the quick reverse-button
3. sew straight stitch forwards and stop at the keyhole, press the quick
reverse-button
4. sew the second bead in reverse, stop the machine at the first stitch
(buttonhole begin), press the quick reverse-button
5. sew bartack and securing stitches
5
Manual buttonhole: example see page 22 of the Sewing Manual
(When sewing any type of automatic buttonhole, presser foot No. 3 is
displayed at the beginning until programming the first bead length)
Both beads are sewn in the same direction.
Automatic buttonhole
· when using Buttonhole foot 3A the length of the buttonhole is
automatically registered by the lens on the foot
· the sewing sequence is indicated on the screen
The step currently being sewn blinks on the screen.
Programme the buttonhole
1. sew the first bead forwards, stop the machine
· press the quick reverse-button
· auto and presser foot 3A are indicated on the screen
= the buttonhole length is programmed
1
2. the machine sews reverse straight stitch automatically
3. the first bar tack
4. the second bead forwards
5. the second bar tack and securing stitches
· machine stops and returns automatically to buttonhole begin
4 5
All subsequent buttonholes will be sewn to exactly the same length
(no need to press the quick reverse-button)
Press the clr/del-button to delete the programme
The programmed buttonhole can be saved in the long term memory
(see page 18)
Compensating plates for buttonholes (special accessory)
If a buttonhole is to be sewn horizontally to the edge of the garment, it
is worth using the compensating plates.
This accessory provides an even surface for the buttonhole foot with
slide which results in a perfect buttonhole (see Sewing Manual tips
page 21).
Operating instructions
15