Thread Tension
Upper thread tension
Lower thread tension
Please note:
Basic thread tension setting: "4"
To increase the tension, turn the dial to the
next number up.
To reduce the tension, turn the dial to the
next number down.
A. Normal thread tension for straight stitch
sewing.
B. Thread tension too loose for straight
stitch sewing. Turn dial to higher number.
C. Thread tension too tight for straight
stitch sewing. Turn dial to lower number.
D. Normal thread tension for zig zag and
decorative sewing. Correct thread
tension is when a small amount of the
upper thread appears on the bottom side
of fabric.
To test the bobbin thread tension, remove
the bobbin case and bobbin and hold it by
suspending it by the thread. Jerk it once or
twice. If the tension is correct, the thread
will unwind by about an inch or two. If the
tension is too tight, it does not unwind at all.
If the tension is too loose, it will drop too
much. To adjust, turn the small screw on
the side of the bobbin case.
- Proper setting of tension is important to
good sewing.
- There is no single tension setting
appropriate for all stitch functions, thread
or fabric.
- A balanced tension (identical stitches
both top and bottom) is usually only
desirable for straight stitch construction
sewing.
- 90% of all sewing will be between "3" and
"5".
- For zig zag and decorative sewing stitch
functions, thread tension should generally
be less than for straight stitch sewing.
- For all decorative sewing you will always
obtain a nicer stitch and less fabric
puckering when the upper thread appears
on the bottom side of your fabric.
B
A
C
D
1
2
Threading the Machine
34
GB / IE
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