size of presser.
2.
Material flops because of light-weight.
3.
Attaching needle is wrong.
4.
Needle id bent.
5.
There is a burr or scratch on the blade
point of hook.
one.
○
Delay the hook-to-needle timing.
（
Lower the needle bar by 0.5mm
）
；
○
Adjust again the direction, height,
etc.
○
Replace the needle.
○
Buff the blade top of hook. Or,
replace the hook.
15
11
11
—
8. Thread frays.
1.
Number of stitches of the stitching is
too small.
2.
Width of tie stitching is too wide.
○
Increase the number of stitches of
tie stitching at the end of sewing.
○
Narrow the width of tie stitching at
the end of sewing.
—
—
9. Length of needle
thread remaining at
the end of sewing
is too long.
1.
Width of tie stitching is too narrow.
2.
Tension of tie stitching is too low.
○
Widen the width of tie stitching at
the end of sewing.
○
Increase tension at the end of
sewing.
—
—
10. Needle thread
breaks at the start
of sewing, or the
wrong side of
seam is dirty.
1. Tension at the start of sewing is too low.
○
Increase tension at the start of
sewing.
—
Summary of Contents for ZJ5780
Page 1: ......
Page 4: ...3 标准缝衣形状一览表 Standard sewing shape list ...
