Sewing Machine Motor Sparks - How Fix It
How to repair the motor of sewing machine when sewing machine motor sparks.
How do I know if my sewing machine motor is bad?
You can find out that the motor of your sewing machine is bad by the characteristic burnt smell and the appearance of sparks in the ventilation openings of the body.
Why is my sewing machine motor not taking load?
The motor brushes do not adhere well to the surface of the commutator or they are badly worn. This is the reason for the decrease in motor power.