kiwibraider Report post Posted October 20, 2019 Hi there, i have recently got got my hands on a singer class 7-5 with no information on it and Only part of the manual. I have managed to get it running and sewing but the bottom thread appears too tight in the stitches and I cannot find a tension screw on or around the bobbin casing to loosen it? Could anyone advise on this ? Machine works beautifully otherwise Thanks in advance Quote Share this post Link to post Share on other sites
Constabulary Report post Posted October 20, 2019 (edited) If you have a similar hook then it looks like this. The tension screw usually is held in place by a set screw so you have to loosen the set screw first (if your hook has a set screw). Edited October 20, 2019 by Constabulary Quote Share this post Link to post Share on other sites
kiwibraider Report post Posted October 20, 2019 Thanks for your reply, The bobbin casing is very similar as the one you posted but there’s neither of those screw points on it i will I’ll try and get a photo of it this afternoon, it’s sure got me baffled Quote Share this post Link to post Share on other sites
Mark842 Report post Posted October 20, 2019 I wonder if your bobbin is original. my singer 7 is as Constabulary shows. I assume you have already tried increasing the top thread tension. As a general rule you usually don't adjust the bobbin tension until you can't adjust from the top anymore. Quote Share this post Link to post Share on other sites
kiwibraider Report post Posted October 20, 2019 I’m starting to wonder as well - I know it has had a bit of restoration work done to it. I have tried adjusting the top thread tension, but this is still the problem I’m facing with my stitching on the underside of my leather Quote Share this post Link to post Share on other sites
