P-15
4.Oven tension
Puckers
or
folding
1.Over bigger needle for fabric;
2.Unreasonable adjustment of
fabric feeding length;
3.Oven tension of upper thread.
1.Choose better needle;
2.Choose functions appropriate
for short fabric feeding;
3.Adjust the tension appropriate to upper
thread
Unsmooth
stitches
and
uneven
fabric
feeding
1.Poor quality of thread;
2.Wrong bobbin threading;
3.Texture was jammed.
1.Choose a better thread;
2.Re-threading correctly;
3.Do not pull and drag texture during sewing.
Thread
jamming
1.Upper thread was hooked on
hook plate;
2.Upper thread was hooked
on bobbin thread bobbin
1.It is mainly caused by the incorrect
threading. Cut the upper part of the thread,
remove the bobbin and smooth the hooked
thread.
2.Put on the transparent cover during
sewing.
Attention: Sewing needle, thread and fabrics must be well-matched.
