Answer: How often you need to replace the blades depends on how frequently and intensively you use the mower—such as how long it runs each day and the type or condition of the grass being cut. You can decide based on your own experience, but we officially recommend replacing the blades every 1–2 months.
Note: If any blade is cracked, chipped, bent, or otherwise damaged, replace it immediately. Using a damaged blade can be dangerous and may affect mowing performance or damage the mower.