Have set the bottom on one and the on nine and still top is too loose and bottom does not seem to change. Have not tried the felt pad under the spool
SOURCE: sudden knotting under fabric
I have an Elna 2005 machine and had a similar but opposite problem whereby the tension up top was too tight - thread wouldn't pull smoothly. I found adjusting the feed dog lever slightly helped the stitches a lot, even though the needle tension up top is no better. Hope that helps! :-s
SOURCE: bobbin tension
This is an issue of your upper thread tension, so take a look at this generic tension solution
If you are in a pickle with your bobbin case, check top tension and bobbin case are free of lint, reset the top tension to 4, and adjust the bobbin tension to suit......some more detail on how to do that, is here
Bargain Box
SOURCE: My Bernina 930's lower tension
Hi - you might have a dirty bobbin case, or need a new one. IAfter awhile, little teeny dust bunnies can collect in your bobbin case and cause your bobbin tension to go wonky, especially if you use cotton thread. If you happen to have an extra bobbin case, try using the new bobbin case to see if that solves the problem. Otherwise.....
In general, you should oil your machine as indicated in your manual as often as directed. You should change your needle every 10 hours of sewing - or each time you start a new project, and you should take your machine in for service every one or two years - even if you only use it once and awhile.
Hope this helps, Ginny
SOURCE: euro-pro 464xc bottom tension loose
Welcome to FixYa!
Loose bottom stitches come from the top, not the bottom. Seems weird, but that's the way sewing machines work.
The dial tension should be set at the mid range and make absolutely sure that you have the machine threaded correctly. Both things will cause a sloppy bottom stitch.
Thanks!
If you find my solution helpful, I'd appreciate a FixYa rating....
SOURCE: Top thread stitches correctly but bottom thread loops.
FYI---- Loops on the bottom-- problem is in the threading..
Loops on the top--- problem is with the bobbin.
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