Question about Brother NX-400
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Posted on Jan 02, 2017
The top of the machine is not threaded correctly. First raise the presserfot then rethread the machine. Bottom looping is usually caused by a lack of top tension. There could allso be a bur on the hook.
Posted on Feb 23, 2008
SOURCE: Brother XL-5130 Sewing Machine
Put the thread through one of the holes. Then put the bobbin on the spindle. Pull about 3 or 4 inches out of the hole and hold on to it. Start winding the bobbin. After about ten turns, or when the winding thread is secure, you can stop the machine and cut off this 3 or 4 inch tail. To insure that the thread winds up and down the bobbin and not off the top or bottom, there is probably a metal bobbin tension disk that the thread must pass around before it goes to the bobbin. It is probably on the left of the machine and may or may not be part of a thread guide. The thread must pass around this disk on its way to the bobbin in order to put tension on the thread so it will wind properly. If you can't find the disk, which is a small metal button or screw with some type of somewhat moveable spring cap, you can just get the thread to pass through your thumb and forefinger. Hold your hand 6 or 8 inches to the left of the bobbin and pass the thread between your thumb and forefinger so that it makes the thread go in a direct straight line to the bobbin. Pinch the thread only enough to keep it taught but not tight and let it flow through your finger to the bobbin. The thread should go up and down evenly on the bobbin. If not, move your hand up or down to position it so the thread will wind up and down smoothly. It will not be necessary to move your hand once you find the correct position needed for winding.
Posted on Jul 20, 2007
Possibly you have the bobbin back in upside down and its turning the wrong way. Happens all the time. If you mean it will not pick up the bottom thread then maybe the needle is in backwards or the machine is out of time. I doubt you will have to replace a part but if it does or you need to have the timing adjusted you will have to maybe look at the Yellow Pages or here online and find the nearest sewing machine repair or dealership and have them look at it.
Posted on Jan 03, 2009
First try taking your bobbin case right out of the machine (not sure if this model has a top loading or front loading bobbin, but your manual will help you here) and floss out the tension slot with a piece of strong thread. Don't use waxed dental floss, but non-waxed would work okay. (The bobbin case is the piece that the bobbin sits in.) Look around while you have the machine open and remove any fluff and thread you can see - TURN MACHINE OFF BEFORE DOING THIS! Replace bobbin case. Replace bobbin and make sure it "clicks" into the tension slot.
Then unthread the top of the machine, clean the tension disks by passing a folded dollar bill (or any paper money, depends on what country you are in) through the disks in the direction you thread the machine. Do this several times. Re-thread making sure you follow the correct thread path.
Make sure the needle plate is on firmly.
If after all that it still won't work, I'm sorry to say that it sounds like you have a misaligned needle bar. This commonly happens after you have a major thread snaffoo and needle breakage. The needle gets caught in the thread knot, pulls to the side and breaks but if it gets seriously caught it can pull the needle bar out of place. You cannot put the needle bar back in place yourself - it's a job for the workshop. Don't sew on your machine until it is fixed. The noise you are hearing is likely to be the needle striking against the needle plate or even the bobbin. Your timing will probably need re-setting too and this needs to be done by a qualified technician.
If you really need to sew before you can get your machine into the workshop, and if you can move the needle position on your machine by pressing a "sideways" button of some sort, you could try to get the needle in the centre yourself using this feature. This will not help if it is the timing that is the major problem.
Posted on May 03, 2009
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