Brother LX-3125 Quick Reference Guide
![Brother LX-3125 manual cover](/images/wihmhXiCvHFKwHmOiytUaRWH/thumbs/thumb175x175.webp)
To thread the Brother LX-3125, start by raising the presser foot and turning the handwheel towards you to raise the needle to its highest position. Place the spool of thread on the spool pin and draw the thread through the thread guide, down the right channel, around the tension disc, and back up the left channel. Pull the thread through the take-up lever, then thread it through the remaining guides and the needle from front to back.
Knocking noises in the Brother LX-3125 can be caused by various issues. Check for tangles in the bobbin case, ensure the needle is properly installed and not bent, and verify the machine is correctly threaded. Additionally, make sure the throat plate is secure, and consider cleaning and oiling the machine if the problem persists.
To adjust the tension on the Brother LX-3125, locate the tension dial on the front of the machine. For tighter tension, turn the dial to a higher number, and for looser tension, turn it to a lower number. Test the stitching on a scrap piece of fabric to ensure the tension is balanced and adjust as necessary.
If the Brother LX-3125 is skipping stitches, make sure the needle is correctly installed and not damaged. Use the correct type and size of needle for the fabric. Re-thread the machine, ensuring the thread is properly seated in the tension discs. If the problem continues, consider cleaning the bobbin case and checking the bobbin tension.
To maintain the Brother LX-3125, regularly remove the needle plate and bobbin case to clean lint and debris using a small brush. Oil the designated parts as per the user manual's instructions. Ensure the machine is unplugged during maintenance. Replace needles regularly and cover the machine when not in use to prevent dust accumulation.
Thread breakage on the Brother LX-3125 can be caused by incorrect threading, tension settings, or needle issues. Ensure that the machine is threaded correctly, the tension is not too tight, and the needle is appropriate for the fabric and not bent. Also, check the quality of the thread being used.
To fix uneven stitches on the Brother LX-3125, check that the fabric is feeding evenly by ensuring the presser foot pressure is adequate. Re-thread the machine and adjust the tension settings. Ensure the bobbin is wound evenly and inserted correctly. Testing on scrap fabric can help fine-tune adjustments.
The Brother LX-3125 uses class 15 bobbins and typically uses size 11/75 to 14/90 needles for most fabrics. For heavier fabrics, a size 16/100 needle may be used. Always refer to the user manual for specific recommendations based on fabric type.
If you're experiencing bobbin winding issues on the Brother LX-3125, ensure the bobbin is placed correctly on the winder spindle and the thread is threaded through the bobbin winding tension disc. Make sure the bobbin winder shaft is engaged and the handwheel is released. If the bobbin is not winding evenly, check for tangles or debris in the bobbin area.
To change the needle on the Brother LX-3125, first turn off the machine and raise the needle to its highest position using the handwheel. Loosen the needle clamp screw and remove the old needle. Insert the new needle with the flat side facing the back and push it up into the clamp as far as it will go. Tighten the needle clamp screw securely.