Bernina 7 Series Manual page 81

Important information
Marking the length of manual buttonholes
⦁ mark the buttonhole length in the desired position
⦁ use buttonhole foot No. 3C (optional accessory)
Marking the length of automatic buttonholes
⦁ mark the length of just one buttonhole
►
after sewing the first buttonhole the length is programmed
⦁ mark only the beginning of all subsequent buttonholes
⦁ use automatic buttonhole foot No. 3A
Marking the length of keyhole buttonholes
⦁ mark the bead length only
►
the correct length eye will be added when the buttonhole is sewn
►
after sewing the first buttonhole the length is programmed
⦁ mark only the beginning of all subsequent buttonholes
⦁
use automatic buttonhole foot No. 3A
Test sewing
⦁
always sew a test sample of the same fabric and
⦁ stabilizer to be used for the project
⦁
select the buttonhole type you intend to use
⦁
sew the buttonhole in the same direction on the fabric (horizontal or vertical,
with or against the grain)
⦁
cut the buttonhole open
⦁
push the button through the buttonhole
⦁ adjust the buttonhole length if necessary
To adjust the bead width
⦁ alter the stitch width
To adjust stitch length
Stitch length adjustments affect both buttonhole beads.
►
spacing between the stitches
After stitch length adjustment:
⦁ re-program the buttonhole
If a buttonhole is to be sewn at right angles
to the seam, we recommend the use of the
height compensation plates (optional
accessory). Place the plates from the back
between fabric and bottom of slide foot up to
the thick part of the fabric and push to front.
When sewing a buttonhole in difficult
materials, we recommend to using the
Compensation plate for buttonholes
(optional accessory). It can be used along
with buttonhole foot No. 3A.
Buttonholes Buttonholes
81