30 BA_310D-R_3100D-R_A16-3_180117_en
5.3.1 Hemming with blind stitch
If there are no experience values available, the best thing to do is to carry out
the following settings in sequence:
a) Adjust required stitch length
b) Adjust stitch depth
c) Check plunger stop and if necessary adjust
d) Adjust material guide (if available)
e) Check presser plate lift. (Mechanic's instructions)
f) Check stitch length.
g) Adjust thread tension, the seam should lie loose on the hem as a rule.
h) Correct the seam diagram.
Insert the sewing material and take care that the start of the hem can be
taken up by the feed dog after the first stitch.
Check the sewing result achieved and possibly modify the adjustments
carried out above.
With through stitches or omissions at the outside fabric (right hand initial
stitch) or the hem edge or the lining (left hand initial stitch), adjust the
stitch depth settings.
„Markings“ caused by the penetration of the needle in the outside fabric
(shift of fibres) sometimes cannot be avoided with extremely thin und hard
sewing material.
When sewing take care that the hem edge always runs along the material
guide (if available). Jerky activation of the pedal should be avoided, as
changes in speed during the sewing process can under certain
circumstances have a negative effect on the initial stitch.
NOTE: To avoid having a build-up with thick fabrics it is recommend to
cut off the corners at the cross seams prior to hemming.
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