SINGER 1280 - Manual (Page 73)

Balancing the Buttonhole
Stitch density on the ieft and right sides of the button-
hole may be balanced by adjusting the buttonhole bal­
ance knob K. Use the buttonhoie balance knob to
obtain similar stitch appearance on left and right sides
of the buttonhole. A very slight turn will produce a
noticeable density change.
To change the density on either side of your test but­
tonhole follow the procedure below.
Before sewing on
your garment be sure to make a test buttonhoie on a
sample of your fabric to check that the stitch density
is simiiar on left and right sides of your buttonhoie.
1. Make a test buttonhole with the balance knob in
neutral position (indicator line or dot directly below
▼ symbol on control panel).
Z If the stitches on the left sice of the buttonhole are
too open, turn the balance knob from its neutral
position to the right to increase density of the side
stitching.
3. If the stitches on the right side of the buttonhole are
too open, turn the balance knob from its neutral
position to the left to increase density of the side
stitching.
After buttonhole stitching is completed, retu rn balance
knob to its neutral position (indicator line or dot directly
below ▼ symbol on control panel).
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