Nicki LaFoille

Bobbin Casing Troubleshooting

Nicki LaFoille
Duration:   5  mins

Description

Learn how to fix a bobbin casing when it pops out of alignment. In machines that have a drop in top loading bobbin, the bobbin casing sits inside your machine under the throat plate and houses the bobbin.

Sometimes the bobbin casing can shift and become dislodged. The needle will hit the plastic piece and the machine will come to a standstill. Error messages may come up on your machine and you might even break a needle.

Nicki LaFoille walks you through how to fix the bobbin casing when it shifts out of place, and offers some tips for helping to prevent this issue from happening in the future.

If your needle won’t move because it’s hitting the bobbin casing, turn the hand wheel away from you to raise the needle to its highest position. Turn the machine off and remove the throat plate. Then remove the bobbin casing.

Clean out the area to remove any dust, lint, and debris. Then replace the bobbin casing so the small plastic knob sits against the metal bar in the front. Some models have alignment notches on the bobbin casing and the machine. Be sure the tension screws are facing forward, and the cut-out area of the bobbin casing sits toward the back.

Turn the hand wheel toward you to be sure the needle will not hit the casing, and to be sure the bobbin casing is secure.

To prevent this from happening in the future, when your bobbin thread starts getting low, replace it with a full bobbin, and/or slow your sewing speed. Also be gentle when changing bobbins, to avoid jostling the bobbin casing out of place.

If experiencing other machine issues, check out these useful videos:
Tension Troubleshooting
NSC Gold: Machine Issues
Tips for Cleaning Your Sewing Machine

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In machines that have a top loading drop in Bobbin. The Bobbin is housed by this Bobbin casing which sits right in here underneath the throat plate. Sometimes this bobbin casing can become dislodged and create lots of problems. So the, the needle slides down past this cut out area of the bobbin casing. And if this casing becomes dislodged, the needle can strike the plastic part of the casing and everything will grind to a halt there. You might have a loud noise error messages. You might even break a needle and it can be very upsetting, but I'll tell you how to fix it and how to hopefully prevent this from happening again. So, if this does become dislodged and your needle strikes it, you'll have to back your needle off in order to, uh, take your throat plate off and take a look under, um, under the throat plate. So you'll have to back your needle off by turning the hand wheel away from you and it's, um, kind of hard for a sewer because we are always turning the hand wheel toward us. Um, the machines aren't really built for turning it away, but in this case, you have to turn that hand wheel away to get the needle to move upward and off of this bobbin casing. So you can work under there. So back that needle off, it's always a good idea to turn your machine off if you're going to be doing anything under the throat plate. So once you take your throat plate off the bob and casing sits just right in here and if it has become dislodged, it'll be really loose and just sitting right there. So you can just pull that out. And if the needle hit your bobbin casing so hard that if you have a crack in the plastic, um, that you might just need to get a replacement part. Um, if you have a little hole in the Bobbin casing and if the plastic is gouged, you might be able to smooth that plastic down. Um, but if you have plastic sticking up, it can interfere with the stitch. So try and smooth that out if you can. And while you have your throat plate off of your machine, it's always a good idea to then clean under your, uh, under the throat plate and under the bob and casing when that comes out, you'll see probably a lot of lint down here and that is actually something that can contribute to this problem. If you have excessive built up lint, little thread clips under here, it can interfere with things. So make sure that's all cleaned out under the Bobbin casing and in all of the areas of your machine, use the, the little brush that comes with your machine to brush everything out and get it nice and clean. And then to drop this casing back in, um, some machines will have alignment marks like a little arrow on the Bobbin casing and an arrow somewhere on this part of the machine to tell you where to align. But if it doesn't, no worries, the cutout area of this Bobbin casing goes toward the back and then we have screws up here that sit toward the front so we can drop this back in. And the main thing you want to look for is this little plastic knob right here, sits against this metal bar in the front. So you want that to sit right up next to that metal bar so we can drop that in and it'll, it'll sit right in uh this little groove and there'll be some play to it and that is fine. That's, that's what we want and you can test out to make sure it's in the right place by turning your hand wheel toward you. And this metal piece is going to spin around the bob and casing. We don't want the bob and casing to move at all. So that's how you know that, that Bob and casing is back in the correct position. Now, another thing that might cause this to happen uh is when your bobbin gets low. So if your bobbin gets to be a quarter or less filled and you're sewing really fast, that Bobbin can kind of rattle around in your bobbin casing and uh start jostling it and cause that to become dislodged. So when your bobbin gets low, you can either just take the rest of that thread off and refill it to full or you can slow down your speed and that can help. Um Also when you are changing out your bobbin, when you go to pull your, your bobbin out to change the threads, you wanna be gentle, you don't wanna be pulling that really, uh, briskly out that can cause things to shift and dislodge as well. So if this happens to you where your bobbin casing gets dislodged and your needle hits it and everything shuts down and you can't, you know, your needle can't go down anymore and the sewing stops just stay calm and follow those steps that I've listed and you can get back to sewing in no time.
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