Pressure adjustments – SINGER 401A User Manual
Page 26
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PRESSURE ADJUSTMENTS
To decrease pressure, turn thumb screw upward.
To increase pressure, turn screw downward.
Increase
Pressure is the force the presser foot exerts on fabric while it
is being stitched.
Smooth, even handling of several thicknesses of fabric results
when pressure is correctly regulated.
Too light a pressure will result in irregular feeding which
affects both quality of stitch and evenness of seams.
Too heavy a pressure not only affects stitch and seam quality
but will mar smooth surfaces and pile fabrics.
Surface finish, as well as the weight and texture of the fabric,
must be considered in determining the amount of pressure needed.