8
(Thread-catching Forbidden). At the same time,
becomes invalid.
Matters for attention in using the function for catching upper thread
1
．
For catching thread, please shorten the upper thread at sewing start.
If the needle is too long, the thread at the backside of the cloth will be pulled out;
meanwhile that too-long needle will easily sew the end of the thread on needle into the seam.
1
）
The standard length of needle thread in thread-catching shall be 33
～
36mm.
2
）
Lengthen the thread after replacing the needle thread. Or when holding the needle
thread at sewing, please set the Thread-catching Key at OFF.
3
）
When the needle thread held with the thread catcher is rolled in the seams, do not
draw the material forcibly but cut the connecting needle thread with the scissors or
the like. The seams are not damaged since it is the needle thread at the sewing start
.
2.
In order to make thread-catching action ensure the stable sewing at start, user can shorten
the needle so that less needle thread could be winded in upper side of the cloth.
3.
When the type of lower plate (1) that material doesn’t closely contact to the board (2) is
used, needle thread at backside of cloth will be rolled into the seams regardless the length
of the thread or the needle thread will be loose