singer Singer class 7-5

[kiwibraider]

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 

 

[Constabulary]

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

[kiwibraider]

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 

[Mark842]

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.

[kiwibraider]

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