Question about Brother XL3750 Mechanical Sewing Machine
1. The needle is not inserted correctly
Remove needle & reinsert needle( flat side towards the back of machine)
2. The needle is damaged
replace with new needle
3. The wrong size needle is being used
Choose a needle to suit the thread & fabric
4. The foot not attached correctly
Check & attach correctly
Posted on Dec 07, 2012
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Posted on Jan 02, 2017
Try a different needle. Use a quilting or topstitch or even a metallic needle - one that has a larger scarf than normal. The scarf is the groove at the back of the needle where the thread goes while the stitch is being formed. Quilting threads often need more "room" there. I have been told that the Inspira quilting needles are good because they have a thread groove on the front and the back of the needle. Not tried them personally but might be worthwhile for you to consider.
For the looping, you could fiddle with your tensions a little either loosening the bobbin tension or tightening the top, or both. Only ever do this in very small increments. But the good news is that even the "professional" quilters do not have perfect quilt backs - just have a look at them at quilt shows!
Posted on May 03, 2009
SOURCE: My ls2125i won't stitch
Start slowly, make sure your thread trails are long enough, I had this problem a LOT when I first started using this machine. (mainly because it was my first machine!)
Fabric bulge- Don't try to push the fabric through the machine, let the feed dogs do it. Your job is to guide the fabric.
Thread jumps- Also, like Outdoorsman said, the tension is probably off. On this machine, the tension knob is easy to find. It's the small one with the numbers on it. "0 1 2 3 4-5-6 7 8 9" 4-5-6 are your optimal sewing tensions. I usually sew on 4 or 5, depending on my fabric and type of stitch.
No stitches- Your lower thread may not be being grabbed properly/bobbin case may be jumping out of position. Open the lower case and make sure your bobbin case is secure, and the thread is grabbed properly.
Hope this helps!
Posted on Jul 31, 2009
Mine did the same thing. The needle is probably to high. Do not insert the needle all the way to the top. Lower it a bit and it should zig zag!
Posted on Feb 13, 2010
SOURCE: my brother sewing machine, My
check needle to see if it's damaged-roll on flat surface to see if it roll correctly
adjust top & bottom tension according to operation manual
Posted on Oct 01, 2010
If your using a stretch fabric, youll need to sew in a stiffner tape. if the fabric "flags" i.e moves up and down with the needle it spoils the loop needed to form a stitch. If your having problems with a stiffer fabric it could be just a bad or too thin a needle. Check threading, needle condition and setting.
Posted on Dec 12, 2010
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