I'm guessing you're meaning the " bottom" or "seated" bobbin. Generally speaking, anytime a bobbin won't come up, it's because of a thread, broken part, button or some such other surprise. Could be a small cut-off that's just now gotten caught up or the thread from the bobbin is caught up in itself and the bobbin has "locked up." The other reasons could be...is there an additional locking mechanism, like you might have for the fabric foot. Do you see anything that could be a broken part or needle blocking the way. Just take a look around in there w a light that is stronger and/or more flexible, wiggle a thin screwdriver or something...could be the bobbin "jumped it's track." Try rethreading everything and see if you can get a forward stitch AND a backward stitch. Don't force anything if you feel any resistance, could be simply that you stopped and cut (again, little thread) at just the wrong part of the stitch locking process. And when all else fails, go in from under the machine, this might be a chore if you have a more sealed up bottom plate, but perhaps you can pop it (the bobbin) out from that angle. Just be careful not to force anything into moving and if you have one of the newer models wherein that area has moving parts that are plastic, be especially careful. When you flip it over, you just might find the phone number for direct tech support for that unit. Good Luck and Happy Sewing!
Jun 05, 2012 |
Brother SE400 Computerized Sewing Machine