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My machine warns me when the bobbin is getting low, but if it runs out sometimes it keeps on sewing. Is something broken? There is a common misconception that the MC10000 is designed to stop when the bobbin runs out. It's not. The low bobbin system is designed to warn you before the bobbin runs out, so that you can change it and avoid having to backtrack. In Ordinary Sewing mode, the machine will check the bobbin frequently, and issue a warning when it's low. While in Embroidery mode, the check is made at the beginning of each color. This check doesn't just detect a low bobbin. It actually measures the amount of thread remaining, and tests it against the amount needed to completely stitch the current color. If you choose to continue in spite of the warning, you will probably run out. In Embroidery mode running out of bobbin thread can cause different behaviors, depending on the stitch direction. If the embroidery arm is moving forward, the needle thread usually goes slack, triggering the broken thread sensor. Because of this, you might think the machine is supposed to stop when the bobbin runs out. However, if the arm is going toward the back of the machine, the thread usually stays tight enough to keep the broken thread sensor from tripping. This behavior may be seen as a malfunction, but it is normal behavior. To avoid running out of bobbin thread, heed the low bobbin warnings! |
© 2002 by James W. Stutsman |
