Singer 1408 Manual De Instrucciones página 30

Stitch Length Dial (Model 1409 only)
EN
Function of stitch length dial for when straight stitching
For straight stitch sewing, turn the Pattern Selector Dial to
the straight stitch setting. (1) Turn the Stitch Length Dial, and
the length of the individual stitches will decrease as the dial
approaches "0". The length of the individual stitches will
increase as the dial approaches "4". (2) Generally speaking,
use a longer stitch length when sewing heavier weight
fabrics or when using a thicker needle or thread. Use a
shorter stitch length when sewing lighter weight fabrics or
when using a finer needle or thread.
Function of stitch length dial while zig-zag stitching
Turn the Pattern Selector Dial to " ". (3)
The density of zig-zag stitches increases as the setting of
stitch length dial approaches "0".
Neat zig-zag stitches are usually achieved at "2.5" or below.
Dense zig-zag stitches are called satin stitches. (4)
23