Two-thread flatlock stitch, Three-thread flatlock stitch – SINGER 14U236B User Manual
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Flatlock stitch can be used for various applications.
Preparation
• Use ordinary overedge throat plate.
• Use left or right needle.
• The right looper thread forms the decorative stitch, therefore fine and unobtrusive threads should be
used for the needle and left looper.
Example: Right looper thread..................woolly nylon or decorative thread
Left looper thread ...................... extra fine
Needle thread ............................. extra fine
Stitch length.............................2-3
Note: If heavy thread such as pearl cotton is used in the right looper, you should skip the 2nd thread
guide (5) as shown on page 15.
1. Set thread tensions to normal sewing condition for
1 needle, 3 thread overedge stitch and make a test
Needle thread
sample. (See page 16)
(green dial)
• When making above adjustment, the right
looper
thread
tension
should
be
adjusted
as
thread
^
light as possible.
(orange dial)
• Make a test sample with two ply fabric.
.
^
Needle thread
2. Turn left looper thread tension dial (yellow)
^
(green dial)
toward (+) mark so that the right looper thread
Topside
m
underside
will come as close as possible to the needle thread
as shown in figure 1.
3.
Turn needle thread tension dial (green) toward (—)
mark so that right looper thread, left looper thread
and needle thread will all come to the edge of
Needle thread
fabric as shown in figure 2.
,
^ >
4.
Open looper cover.
Thread
'
Needle
thread
5. Turn hand wheel toward you to bring movable
_
knife to its lowest position and place it in the non-
.
^ thread^*^^*^
operating position. (See page 21)
Topside
6.
Attach edge guide to machine.
Underside
7. Fold fabric in half with the wrong sides together.
8. Place fabric under the foot with the fold resting against the wall of edge guide. Adjust edge guide so
that it is positioned in the center of the seam width as shown in the sketch.
9. When stitching is completed, unfold fabric and press the stitching from the underside of the fabric.
17. Three-thread flatlock stitch
18. Two-thread flatlock stitch
You can also flatlock with the 2-thread overedge stitch. Set tension as shown on page 14. Heavy decora
tive threads such as pearl cotton are not suggested for 2-thread flatlocking.
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