I have an older machine, a Brother VX-808, and I am having problems
with the bobbin thread making uneven stitches on the underneath of
the fabric. Some of the stitches look as if they are pulled out, and non are uniform in size. I tried adjusting the tension settings on the machine, but
I have misplaced the manual and am not sure of the correct settings.
Your help would be greatly appreciated.
Sounds like there is little or no tension on the top thread.
You probably have thread stuck in your tension discs. If so, set the tension at zero, open the discs with a small screw driver and blow between them. Sometimes you have to dig it out with tweezers.
Then reset clockwise untill you can feel the tension on the thread when you pull through it. It should be about the same as pulling a mug of tee along a table. (not specific I know - but you get the idea - and I love the tea!)
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Your problem is an un-matched tension of the threads. You mentioned doing an adjustment recently. That is the problem area.
If your bobbin thread develops loops on the top side of the fabric, you need to tighten the bobbin tension.
There is no easy method for this and you will have to do it slowly -
tighten, test, re-tighten, test.... until you get a near perfect stitch.
I haven't come across a portable device specifically designed to set thread tensions.
machines can have single or double feeders. what type does yours have? feeding problems can usually be fixed by a good cleaning+ oiling of the feeder mechanism which regularly gets clogged with lint+threads/scrap threads. brush it out thoroughly with a stiff-bristled brush like an acid brush. apply 1 drop of oil to each feeder seen on the foot-plate. wipe excess oil off with a clean dry rag being sure not to get any debris from the rag caught in the feeder(s). other problem might be your bobbin tension. this is usually adjusted on the bobbin race with a very small screwdriver.
Remove the needle plate, bobbin case and bobbin and clean any lint that has accumulated.
Oil, if the manual indicates you should do this and where it should be done. Some do not as it has to be done by a repair tech.
Re-thread the machine with the presser foot in the up position.
Make sure the bobbin thread is feeding from the bobbin spool in the correct direction and through the proper guides.
If the problem continues, the machine will have to be services by a sewing machine repair person. Take samples of the stitching so they can see what it happening - it could be the timing has to be reset.
this is caused by uneven winding of the bobbin, sometimes the spool of thread winds unevenly when it travels up and down the spool. the best solution i have found is to use small spools of thread when winding the bobbins
Possibly you have the bobbin in upside down and its turning the wrong way. Read manual. If you have done everything the manual says then it must be a mechanical issue such as the small thread take up spring or maybe the tensioner discs are dirty. Timing slightly off or there is a burr on the hook that catches the thread. Have a tech look at it.
It sounds like you may have uneven tension between the bobbin thread and the upper thread.
You can adjust the tension via a screw on the bobbin case. Turn it clockwise to tighten the bobbin thread tension and counter clockwise to reduce it.
It's also worth remembering to check the tension on the presser foot for the material you are using. Check also that the shuttle race is clear of lint etc.
Hope this helps