I have pulled my domestic 153 out of hibernation. I have not used it since it came into my possession several years ago. I have oiled it and dusted it. However the tension is way out of whack. I have attempted to change it. I have tried all nine settings and none are helping. On the back of the fabric the top thread is a mess. It's all piled up and everywhere. I have the manual and it's not been a bit of help.
I tried to attach a photo but I can't figure it out.