Stretch Stitch Lever; Stitch Pattern Selector - Singer 645 Owner's Manual

STRETCH STITCH LEVER
Selection between ordinary stitching and triple auto
matic backand4orth stitching called stretch stitch is
made by the stretch stitch lever. With the lever up at
"REGULAR STITCH" position, ordinary sewing is
performed.With the lever down at "STRETCH STITCH"
position, your machine automatically performs the
stretch stitch with the repetition of two forward and one
backward stitch combination.
A reinforced seam of stretch stitch that will stretch
considerably more than the fabric used is the most
wanted feature in a sewing machine today.
Its uses are almost unlimited and the more you use
your machine the more it wilt become apparent to
you.
When stretch stitching, the stitch length control should
be always set at 5.
STITCH PATTERN SELECTOR
In addition to ordinary straight and zigzag stitches, three consecutive buttonholing-
step stitches, 3 different kinds of utility forward stitches, 3 special stretch stitches
and straight and Rick-Rack stretches as shown on the Stretch Stitch Patterns
Marking can be selected by this selector.
This selector can be turned only to the
right, except for it's buttonhole step selection range where the selector can be turned
to both directions.
For regular stitch patterns, set the pattern selector at the selected pattern position
and the stretch stitch lever at "REGULAR STITCH".
The regular stitch patterns selected by the selector are turned to the stretch stitch
patterns shown in same color as those of regular stitch patterns on the selector
respectively, simply by setting stretch stitch lever at "STRETCH STITCH".
All regular stitches are made by forward sewing at an optional forward stitch length
selected by stitch length control. All stretch stitches are made at the fixed stretch
stitch length with the stitch length control
at 5 and the stretch stitch lever at
"STRETCH STITCH". To balance the left
side of the buttonhole, first step, with the
right side of the buttonhole, third step,
'
adjust the buttonhole reverse stitch tuner.
-
With the selector at buttonhole step (2—4),
your machine does not feed fabric for
bartacking the buttonhole ends and, with
it at buttonhole step (3), it feeds fabric in
-
reverse to sew the right buttonhole edge
with the preset reverse satin stitch length
automatically, regardless the setting of
stitch length control.