Operation Manual

Operation
Operating Manual 967 version 00.0 - 11/2013 49
5.12Setting presser foot stroke
The presser foot stroke has 12 levels of 1 mm each.
Correct presser foot stroke setting
Set the presser foot stroke as low as possible, but enough so that
the material can pass through evenly with a consistent stitch
length. In general, the thicker the material and the greater the
changes in thickness over the course of the seam, the higher the
pressure foot stroke should be.
Defects due to incorrect setting
• Stroke too high:
The heavy impact of the presser foot can damage the mate-
rial and the machine is unusually loud.
• Stroke too low:
Stitch is shortened – its length is much shorter than the
length set by the regulator. Specifically, the machine does not
feed the material properly in places where its thickness
changes suddenly.
5.12.1 Limitation of sewing speed
If the pressure foot stroke is high, the operator must limit sewing
speed to the maximum RPM according to the table, regardless of
material,  Table: Maximum machine speed, p. 99.
The machine can be damaged if the sewing speed is too
high for the presser foot stroke.
Make sure the permitted sewing speed in the table in the
Appendix is not exceeded.
ATTENTION