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Razor Sharp! How To Sharpen Lawn Mower Blades

With Spring coming faster than we know, it’s going to be that time of year again. You know the time of year we’re talking about; that time of year when everything grows! Plants, flowers, trees, and GRASS!

Everything is growing!

But what can you do about it?

Pulling out the old lawn mower will certainly do the trick for some things, but what if the blades are out on it? What will you do then? Why, you sharpen them, of course!

Why Do You Need To Sharpen Your Blades?

After a while of not sharpening your blades, your grass is sure to suffer. Cutting jobs can become much more difficult when your blades are dull. Not only that, but your grass may be left with an ugly, uneven cut.

More risks can come up if your soil is loose. Rough blades can rip up patches of dirt and badly damage your yard and garden. Be extra careful with your blades!

How Often Do You Need To Sharpen Your Blades?

That depends entirely on the blades and mower. Some blades can go weeks without needing to be sharpened and others can even go months. It’s all on your brand and choice!

If you’d like an educated guess as to how long the blades will last, take a few things into account first.

How often are you using the lawn mower? How large is your yard? Do you cut large stalks of grass, or just barely grown blades?

All of these things can decide how quickly your blades will need to be sharpened.

So How Do You Do It?

  1. Wear Protective Gear – First things first, be sure you’re wearing the right gear for the job. This usually includes a minimum of protective goggles and safety gloves. Both of these pieces of gear are REQUIRED for checking your blades because you don’t want to accidentally hurt yourself.
  2. Make Sure Your Blades Need To Be Sharpened – This may seem like a no-brainer, but you need to be double sure that your blades even need the sharpening before you waste your time. There are risks that come with sharpening blades that are already sharp. You can overkill it so it gives your grass too much of clean shave, or you can risk breaking the blades altogether!

A good and safe way to check if your blades are good is to collect a clump of grass thick enough to wrap it around your fist. Once its thick enough, gently press it into the blade. If it cuts with no problem, it’s fine.

If not, then you need to proceed to the next step!

  • Take The Spark Plug Out – You have GOT to do this or else you put yourself at risk of hurting yourself. The first rule to sharpening lawn mower blades is to make sure the machine is not in current working condition. This means it can’t suddenly turn on and cut you while you’re working.

Nobody wants that, so you have to take the spark plug out before you get down and dirty with your blades!

  • Give Your Blade A Good Bath – This may sound silly, but it’s the truth! Your blades are likely worn out from all the grass they’ve cut. All that build-up has made your blades dirty and in need of a good wash-down.

Not to mention that clean blades are much easier and safer to sharpen because everything is out in the open and smooth. So take your blades out of the mower and give it a good cleaning.

  • Carefully Sharpen The Blade With A File Or Grinder – There are two ways to sharpen your blade for your lawn mower. One way is with a bench grinder, which is arguably the safest way to do it. All you do is move the blade back and forth of the grinder wheel and it will sharpen like no tomorrow!

Alternatively, you can use a hand file to sharpen your lawn mower blades. You sharpen the blades in a similar fashion this way, but you make more use of your hands. You’re sure to get an efficient job done this way, but it’s a bit more dangerous.

Be careful!

  • Properly Reinstall The Blades Into The Lawn Mower To ensure that the balance is all good in your mower (because an imbalanced mower is the LAST thing you need), be sure to clean out any clumps of mud that may have built up over time. Once you’ve done that, gently reinstall the blades back into the mower. You’ll be all set to mow again!

Concluding Thoughts

Sharpening a lawn mower blade isn’t as hard as you’d think. However, you still need to take extra care with doing it. Even with protective gloves on, you can still hurt yourself.

So be sure to heed this how-to the next time you go to sharpen your blades. You could save your own life if you take extra care of your equipment. Not only that, but you’ll save your grass’s life too!

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