Originally Posted by MommaDorian
Originally Posted by patdesign
No the bobbin tension screw will be on a small flat metal piece that is curved around the bobbin and which the thread goes through. In your pix it looks like it would be in the vicinity of the semi circular piece of metal just to the left of where you are pointing. Check your owners manual to see exact area, and which way to turn the screw. It is usually a very small screw and should only be turned 1/8 of a turn at a time. I think you should check to make sure that there is no lint or loose thread in between the upper tension discs. Sometimes you can run a piece of dental floss between the discs to clean them, or a pipe cleaner. Always do all you can with the top tension before touching the bottom tension setting as that one ususally doesn't need adjustment all that often. :)
Sounds so complicated. I think I found the screw, it is green and very very tiny. I think I'll leave that alone for now. My owners doesn't mention a thing about the bobbin tension. :(
If your owners manual doesn't mention bobbin tension adjustments, I would leave them ALONE. Most problems can be resolved from the top tension anyway, and if it' s the botton tension it may need a shop visit. EVEN though the loose threads are on the bottom, it means that the top tension is too loose, try tightening that one until the stitch locks in the center of the two layers of the fabric. If your machine has auto tension controls it is a little harder to correct tension problems, but try making sure there are no pieces of thread stuck in the top tension discs, since that will hold the discs further apart which would tend to make the top tension too loose. I have a Brother Embroidery machine that does this and after a shop visit when the repairman showed me what the problem was, I just take mine apart and clean out the discs, and the problem disappears. The good news was that the dealer serviced it for free since the machine was only 6 months old the first time it happened. :D