Singer S900 Manuel D'instruction page 70

5. Carefully mark the position of buttonhole on your garment.
6. Place the fabric under the foot. Pull out the bobbin thread
underneath the fabric to a length of about 4 inches to the
rear.
the buttonhole foot, and then lower the buttonhole foot.
8. While holding the top thread, start the machine.
Fabric marking
Marca de material
9. When sewing is finished, use a buttonhole opener/seam
ripper to open up the fabric in the center of the buttonhole.
Be careful not to cut any of the stitching.
68
1 2 3
1 2 3
Fabric marking Mark
Marca de material Marca
4 5
4 5 6
Buttonhole foot alignment position
6 7
7 8