By drdoct on
Aug. 26, 2011
Hi, I've got a Brother BAS-416a which uses the jumbo bobbins. I'm looking to order another bobbin case assembly. The only problem is that the part that goes with the number in the book doesn't have the little pigtail spring thingie that holds the thread at the top. Do I have to have that? I'm slowly working through a thread break issue and one issue I have is with the bobbin case not holding consistent pressure (even with magnaglides). I'm also getting a new hook since I believe that to be the real problem. Do I need the pigtail or will other ones work. It's the same hook system that's on the 423.