https://leahday.com/products/singer-heavy-duty-4411 Let's change a top loading bobbin! Whenever your thread breaks, always check for loose thread tails stuck in the machine and brush out your bobbin if it's gotten linty. Pop in the new bobbin and make sure it's turning in the right direction AND properly threaded through the tensioner on the bobbin case. . The trickiest step? Bringing the bobbin thread up to the sewing machine surface. The key to doing this is making a full rotation of the top t