Machine Settings; Setting Button; Thread Tension - Singer C440 Manual De Instrucciones

Sewing Preparation

MACHINE SETTINGS

Setting Button (A)
Before or during the sewing process, you can adjust the
settings by pressing the Setting button.
The Setting Screen will appear.
This screen is scrolled by pressing the right side arrow buttons.
Pressing the Setting button again, machine will return to
previous screen.
NOTE: All settings except for thread tension will remain until
you change them. Thread tension will return to pre-set when
you change the pattern. Default settings will differ depending
on the stitch selected.
Thread Tension (B)
For the best stitch appearance and durability make sure
the threads meet evenly between the two fabric layers. This
machine sets the thread tension automatically when a pattern
is selected. However, you can change the thread tension as
follows.
To increase the upper thread tension, press the + button.
To decrease the upper thread tension, press the – button.
If you change from pre-set, number will be highlighted.
You can start sewing while in this mode and change tension
while sewing. To return to previous screen, stop sewing and
press the Setting button again. When another stitch pattern is
selected, thread tension will return to pre-set.
Preset Thread Tension
Upper and bobbin thread will lock approximately in the middle
of fabric.
Upper Thread Tension Too Tight
If the bobbin thread is visible on the top side of the fabric, the
thread tension is too tight. Reduce the thread tension.
Upper Thread Tension Too Loose
If the upper thread is visible on the underside of the fabric, the
thread tension is too loose. Increase the thread tension.
Thread Tension for Decorative Stitching
Thread tension should be set to a slightly looser tension than
that for straight stitch.
The upper thread should appear slightly on the bottom side of
your fabric, for example, when doing decorative sewing.
Helpful Hints
1. If your sewing appears as shown in the illustration (stitches
on the top side of the fabric are good, but the bottom side
looks very loopy), it is most likely that the upper thread
is not threaded correctly. Refer to page 19 for correct
threading.
2. If after checking the top thread and the bobbin thread is
still showing on the top side, check the bobbin to see if it
is set correctly. Refer to page 18 for information on correct
bobbin setting.
B
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A