15
3
5
4
3
5
4
3
5
4
q
w
e
r
q
w
e
r
q
w
e
r
q
w
e
r
Balanced Thread Tension
For straight stitch sewing, both needle and
bobbin threads will join at the middle of the
fabrics.
q
Wrong side of fabric
w
Right side of fabric
e
Needle thread
r
Bobbin thread
To obtain better zigzag stitches, the needle
thread tension should be slightly weaker than in
the case of straight sewing.
The needle thread should appear slightly on the
reverse side of the fabric.
q
Wrong side of fabric
w
Right side of fabric
e
Needle thread
r
Bobbin thread
Manual Thread Tension Adjustment
Set the desired number of the thread tension dial
at setting mark.
You may also need to adjust tension manually
depending on the sewing conditions such as the
type of fabric and number of layers.
If the needle thread is too tight, the bobbin
thread appears on the right side of the fabric.
q
Wrong side of fabric
w
Right side of fabric
e
Needle thread
r
Bobbin thread
Turn the thread tension dial to a lower number to
decrease the thread tension.
If the needle thread is too loose, the needle
thread loops on the underside of the fabric.
q
Wrong side of fabric
w
Right side of fabric
e
Needle thread
r
Bobbin thread
Turn the thread tension dial to a higher number
to increase the thread tension.
Summary of Contents for HD1800
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