Strobel VEB 200-1 - Problems During Sewing and Possible Solutions

27 BA_VEB200-1-2_A2_180618_en
5.4 Problems during sewing and possible solutions
ATTENTION!
Switch off machine electrically and confirm that the
machine is really in standstill position by operating the
treadle for the sewing drive control. Otherwise DANGER
of finger bruises and needle through stitches.
 Thread tears
Possible reasons:
- sharp edges or grooves in the needle guide, thread take-up, looper
or needle eye after a long time of machine operation
- looper or loop stroke are not set correctly, therefore the thread loop
is not always caught
- thread tension set too high
- thread size does not correspond to needle size
Solutions:
- replace or polish the damaged parts
- re-adjust looper and/or loop stroke
- re-adjust thread tension, check thread course
- choose the correct thread size
Please observe: Thread course, thread, needle plate with plunger and
cloth retainer, needle and thread tension should always
be set and chosen according to the material to be
sewn.
 Inexact needle penetration
Possible reasons:
- worn out or damaged needle
- wrong pressure or setting of cloth retainer
- wrong setting of needle plate or needle guide
- damaged or worn out needle glide plate
- wrong needle size (too thin)
- damaged plunger or wrong plunger setting
- material support arm pressure set too light
Solutions:
- replace damaged needle, choose suitable needle size
- check settings and re-set, if necessary
- replace needle glide plate
- readjust the material support arm