Things You'll Need
The Brother LS-2125 sewing machine is perfect for basic sewing. It has 10 built-in stitches, a four-step buttonholer, a reverse sewing lever and 25 stitch functions. You can disassemble parts of your sewing machine to clean it or perform routine maintenance, such as changing the belt. Check with a sewing machine repair technician prior to disassembling it on your own, since this will void the 25-year limited warranty.
Unplug the sewing machine and remove the needle. Remove the thread.
Open the latch on the shuttle cover and pull out the bobbin and the bobbin case. Remove the shuttle hook by pulling the center post. Use a coin or a standard screwdriver to loosen the two screws on the needle plate.
Remove the faceplate of the needle housing by unscrewing the screw on the upper back of the machine, behind the needle housing. Remove the light bulb.
Remove the three screws on the back of the machine. Gently lift the back cover off.
Unscrew the bolts that secure the motor to the frame using a Phillips screwdriver. Take out the motor. This exposes the wires connecting the motor to the power supply. Pull the connector from the power supply to disconnect the wires.
Unscrew the thumbscrews near the top of the machine head to remove the presser foot bar lever. The pressure foot bar level runs through a grub. Remove the grub screw. Using a pair of pliers, gently twist and pull up to remove the pressure foot bar level and the large spring.
Loosen the thumbscrews on the tensioner. Take out the spring and the disk. Place the head of a standard screwdriver into the stud of the tensioner and remove the stud. Take out the tensioner and the tensioner spring.
Unscrew the bolts on the belt guard with a Phillips screwdriver to remove the belt and the belt guard. Take out the belt and the belt guard.
Remove the small screw in the center of the knob of the hand wheel with a Phillips screwdriver. Take out the knob and the washer.
Lay your parts out in the order that you remove them for ease of reassembly.