Motor windings are exposed to electrical and thermal stresses during normal operation. Poor ventilation, frequent starting and stopping, voltage fluctuations, overloading, and harsh operating environments can accelerate winding deterioration. Common warning signs include overheating, unusual noise, burning odors, excessive vibration, reduced efficiency, and frequent electrical tripping. https://www.danielgroup.ae/blog/why-cement-crusher-plant-motors-need-regular-overhauling/