Stitch Adjustments; Stitch Width Adjustment; Width Adjustment By Changing Needle Position; Width Adjustment With The Cutting Width Dial - Pfaff coverlock 4.0 Owner's Manual

Stitch width adjustment

The stitch width can be increased or decreased by
changing the needle position or with the cutting width
dial.

Width adjustment by changing needle position

A) When only the left needle, or when both needles are
used the stitch width is 6 mm.
B) When only the right needle is used the stitch width is 4
mm.
C) When using the chainstitch needle the stitch width is 9
mm.

Width adjustment with the cutting width dial

By ne tuning the cutting width using the cutting width
dial further adjustments are possible within the range
shown below.
• When only the left needle is used: 5 - 7 mm
• When only the right needle is used: 3 - 5 mm
• When using the chainstitch needle: 8 - 10 mm
Turn the dial to adjust the desired seam width. For
standard setting the dial should be set to 6.0.

Presser foot pressure adjustment

The presser foot pressure for sewing based on normal
conditions should be set to 2.5. Adjustments in some
instances may be necessary. Increase or decrease the
pressure until you are satis ed with the result. Always
test sew on a sample of your fabric before sewing on your
garment.
Less pressure: Decrease the pressure by turning the
adjustment dial in counter-clockwise direction to a value
between 2.5 and 1.
More pressure: Increase the pressure by turning the
adjustment dial in clockwise direction to a value between
2.5 and 5.
Back to standard setting: Turn the adjustment dial until
the mark on the knob is set to 2.5.

Stitch length adjustment

Stitch length is automatically set when selecting a stitch
but it may have to be adjusted depending on fabric
type. Adjust the stitch length to 4 mm when sewing on
heavyweight fabrics. Adjust the stitch length to 2 mm
when sewing on lightweight fabrics.
To adjust the stitch length, touch the stitch length icon. It
becomes surrounded by a black frame, showing that it is
selected. Touch - or + to adjust the stitch length.
A) Left needle B) Right needle
6 mm
5.5
6.0
6.5
C) Chainstitch
needle
4 mm 9 mm

Stitch adjustments

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