Insert for tension screwdriver – SINGER 431 User Manual

Page 29

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-Hv,

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ex .„.-Jy/I

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Bobbin thread tension too tight

—

correct by turning screw in

direction indicated.

BOBBIN THREAD TENSION

STRAIGHT STITCHING

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Bobbin thread tension too loose

—

correct by turning screw in

direction indicated.

Insert for tension screwdriver

A perfectly locked stitch results with the upper and lower tensions balanced so that needle and bobbin

threads are drawn equally into fabric.