Permanent magnet motors are widely used in modern marine propulsion systems due to their high efficiency, compact size and excellent performance characteristics. However, they require specialist handling and repair techniques.
A common misconception is that a motor fault may be caused by sticking brushes, leading some operators to strike the motor housing with a hammer in an attempt to free the mechanism. Permanent magnet motors do not contain brushes, and impact damage can fracture or shatter the internal magnets. Once damaged, these magnets are often impossible or uneconomical to repair, resulting in costly replacement.
Salt water ingress, corrosion and mechanical damage can also affect permanent magnet motors, making early diagnosis and professional assessment essential. Our experienced engineers can identify faults, assess repair options and provide practical recommendations to maximise the life of your equipment.