What makes top thread break
top thread breaking could be caused by a number of things:
- could be old brittle thread - buy fresh quality thread. Or if it is good quality but old, maybe put in the fridge for an hour to get some moisture back into it. Or leave outside on a window sill overnight to do the same thing.
- top tension dial too tight, put on mid setting usually 4 or thereabouts, it is often marked on the dial.
- threading up wrong, could be that youve missed the take up lever properly, so when the needle goes down, there is insufficient slack on the thread above and it breaks under the strain, recheck threading up from spool to needle
- thread could be catching on an thread eye, on the back where the thread spool sits, on a nick on the thread spool itself, or wrapped twice around a thread eyelet, review the threading up and see if you can elminate the cause yourself
- using a big cone of thread on the thread spool, this may cause problems if the thread can't flow off the cone cleanly as the weight of the cone will stop it turning on the thread spool and there won't be enough height above the cone to allow the thread to come off the top of it like happens on an overlocker with an aerial. You can get around this problem if you want to use big cones by winding off the cone onto a bobbin, then using the bobbin on the top thread spool. Or buy a freestanding cone holder with an aerial so the thread can come off the top cleanly, then go to the top of the machine's first thread eye.
- top tension dial gummed up, dirty or faulty - many users don't know to clean between their tension discs and some models its hard to access to clean. But if you can see the tension discs where the top thread runs through to be tensioned, then you can clean them. Raise pressure foot and turn tension dial to zero first, then "Floss" between the discs with the selvage edge of a clean piece of cotton fabric offcut, if it comes out with some black stuff on, keep cleaning with a fresh edge. You can moisten the fabric with denatured alcohol too if its very bad. Clean until the edge comes out clean. Then reset tension dial to 4, thread up again and test stitch.
If none of the above resolve your problem, then maybe its time to take the machine for a professional service, the tension dial may actually be faulty and need replacing.
Sep 22, 2011 |
Euro-Pro Shark 80 - 7133