Thread tension, Upper thread tension, Basic thread tension setting: 4 – SINGER 1116 User Manual
Page 16: Lower thread tension
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□ Thread tension
Upper thread tension
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.
Normal thread tension for straight stitch sewing (A).
• Thread tension too loose for straight stitch sewing. Turn
dial to higher number (B).
• Thread tension too tight for straight stitch sewing. Turn dial
to lower number (C).
Normal thread tension for zig zag and decorative sewing
(D). Correct thread tension is when a small amount of the
upper thread appears on the bottom side of fabric.
Lower thread tension
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, gently turn the small screw on the side of the
bobbin case. This should only be needed for specialty