1Switch off and unplug. Wait for the blades to stop; never put fingers through the guard while powered.
2Inspect the guard, blade, rear cover, cable, plug, stand, and nearby surfaces for impact, trapped debris, or contact marks.
3Clean only external accessible surfaces with a dry brush or vacuum. Do not bend the guard, wet the motor, or remove electrical covers.
4Check the blade turns freely by hand and has no side-to-side play. Scraping, stiffness, wobble, or a loose hub means stop using it and escalate.
5If visually sound, run briefly from a safe position on the lowest speed. Stop immediately for screeching, burning smell, smoke, sparking, overheating, or increasing vibration.