Singer 7442 Mechanical Sewing Machine "persited" Questions

The tension on my 1008 is not working correctly. Knots are forming on the underside of the fabric. I have tried adjusting the tension all the way up to 9 and I get the same result. Refer to your ...

Bobbin Thread is "birdnesting" The bobbin thread keeps getting tangled/knotted after stitching for about 5 inches. It seems that the thread gets cut in two or three places (on the bobbin) and then the

Re-curring loose bobbin case My mum bought me this machine brand new- and after a few hours of use the bobbin case is not sitting in the metal casing tightly, causing the thread to loop and bunch up ...