Computer sewing lotus root machine maintenance needle Rod does not swing can not do tricks, teeth do not send cloth Simi no use First of all, let's check whether the needle is installed correctly,It's better to change a new machine needle.2, if still not,We went on to open the needle,Turn the needle to the lowest position,Look at the rotary shuttle tip from the machine needle 8mm or so.If yes,Then raise the machine needle 2.3mm or so,Look at whether the rotary shuttle tip coincides with the machine needle center.At this time, the needle and the tip of the shuttle can not be too tight,There should be 0.1 gap.3, sometimes the needle has a little bend will also jump the needle, the easiest way is to change the needle to try, if not, when the needle is installed, try a little bit, only a little bit, otherwise, it will break the line. sometimes such a simple operation is also very effective.4. it also has something to do with the thickness of your sewing.Thick things should be thicker,If the needle is

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