Hello
I just bought a consew 206-rb5. This is my first industrial machine. I bought it from a shop that does custom car interiors. Before I bought it, the guy gave me a thorough demonstration and it worked fine. Now that I have it home and have been working with it, the machine at first was shredding the thread (size 92). I adjusted the bobbin tension and now it is leaving these big loops on the backside of the leather. I'm a complete noob and would appreciate any advice as to how to fix this.