If you can not find the manual there is an old fashioned way to make a machine buttonhole. This may be a bit long.
Mark your fabric for both ends of the button hole,remember this is for the harness to fit through and needs to be approx 3/4" long (I use a pin at either end). Make a bar tack at one end,with a zigzag stitch,keep needle in fabric and turn it for one long side of your buttonhole,zigzag to the next pin,needle in fabric and turn to make the next bartack (go slow so you can make it match the other end),needle in fabric turn for the last side of buttonhole,sew all the way to the first bartack,be sure to back stitch a bit to lock your stitches in.
If you cannt find your manual,you can probably order one online,possibly a PDF that you can download and not have to wait on the mail.
Good LUCK |