Originally Posted by Noiseynana
Need help yall. My vintage singer is sewing smooth as can be. BUt the stitches won't lock. I've tried several times to get the bobbin thread to swirl around when the needle thread comes down. But it just ain't gonna happen. THe needle thread just goes straight down and nothing else. Help please
Most likely the bobbin is inserted in the bobbin case incorrectly, or the needle is either wrong type or not pushed entirely into the needle slot :-D