When to Replace a Lawn Mower Blade?

One of the best ways to have a healthy lawn is by cutting it using sharp blades. A dull mower blade will rip off the grass and weaken it, which leads to diseases. Therefore, sharpening the blades is the ideal tactic to reduce your mowing time and ensure you do not get too tired. However, before buying new mower blades, inspect the old ones to ensure they need a replacement.

Lawn mower blades dull over time, making it hard to get that perfect cut. While there are lawn mower blade replacement services out there, a little elbow grease can help you save money by replacing them at home. Pick up the necessary lawn mower supplies and follow these steps on how to remove a lawn mower blade and replace it with a new one.

When to Replace a Lawn Mower Blade?

  • If the lawnmower is cutting grass unevenly
  • When the blade is bent or damaged
  • When the blade is dull after sharpening
  • If it is more than a few years old
  • When the the condition of the blades is bad
  • Torn grass

How Can I Tell When My Mower Blades Need To Be Sharpened?

While the table above is certainly a helpful reference, it’s more important that you learn what indicators to look out for so you know when it’s time to sharpen your mower blades again, even if “the data” says it’s not time yet.
When looking at the mower blade itself, look for any obvious dents or major scratches. You’ll likely see hairline nicks over time, but very small nicks can be worked out during sharpening. However, if you notice bigger dents or nicks that have bent even a tiny portion of the blade up or down, it’s unfortunately time to replace the entire blade (find a replacement blade here).

Another indicator to look for is the grass itself. Look closely at the blades of grass to see how clean of a cut the mower made. If you notice that the tips of the grass blades look torn and ragged, that probably means your mower blades should be sharpened.


Post time: Oct-09-2021