The tension must be too tight or check to make sure the spool does not have a crack that is catching the thread in the middle of using the serger. When the serger is working and the spool has a crack it catching the thread then you press to go on and it gives a break the needle because the spool is still holding onto the thread
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The tension must be too tight or check to make sure the spool does not have a crack that is catching the thread in the middle of using the serger. When the serger is working and the spool has a crack it catching the thread then you press to go on and it gives a break the needle because the spool is still holding onto the thread