Do Lawn Mower Blades Need To Be Sharpened? Find Out Here

Written By James
Updated July 26, 2021 by James

Do Lawn Mower Blades Need To Be Sharpened? Find Out Here

If you have a lawn mower, chances are you've had to sharpen mower blades at some point. Having a sharp blade is important for several reasons.

If the blade is dull, it can rip grass and leave your lawn looking like a patchy mess. A sharp blade also cuts grass more efficiently, so it doesn’t have to work as hard. Blades should be sharpened once a year, or every 20 hours of use.

The lawn mower blade is the component of the lawn mower that is used to mow grass and other types of vegetation. It is an integral part of the mower and is what makes the lawnmower a stand-alone machine.

The blade is mainly responsible for the movement of the mower and is the main component that brings about the cutting of the grass and other vegetation. It is what enables the grass to be cut as the mower moves along. The blade on a mower can come in different shapes and sizes.

The size of the blade that is used on a particular lawn mower will be determined by the size of the lawn that the mower is intended for. Usually, the smaller the lawn, the smaller the blade

Problems When You Mow with Dull Blades

Mowing with dull blades will cause you to push harder on the handle forcing the dull blades to dig into the grass. This leads to a condition known as scalping which will lead to torn roots and a weakened lawn.

Scalping is bad for the grass and it is also bad for your lawn mower since it causes the engine to work harder and in some cases the motor will overheat and break down. The blades will also wear out or break faster.

Dull blades make your mower work harder to cut your grass, which increases wear and tear on your mower and can cause your mower to stall. This type of mower damage can also lead to poor-quality finished cuts and leave your lawn looking ragged and unkempt.

To avoid these problems, talk to your local equipment dealer about installing new, sharp blades on your mower. Your mower will thank you for it.

Methods to Sharpen the Blade

Cutting the grass is a task that most of us do on a regular basis. Mowing the lawn is a great way to keep your yard looking fresh and well-manicured, but the lawn mower blade on your mower will eventually wear out.

A dull blade will not cut the grass as efficiently as it could, and will leave your lawn looking unhealthy and unsightly. Fortunately, the task of sharpening your mower blade is not very difficult.

An angle grinder makes quick work of this dirty job.

The lawn mower blade cuts grass at an angle, which — combined with the fact that you're pushing the blade along the grass — creates a lot of friction and can cause the blade to dull.

Sharpening your blade requires you to remove it from the mower, which requires a few tools. I used an angle grinder to remove the blade from my Craftsman mower.

To sharpen a dull blade, turn the angle grinder on to a low speed and then press the blade against a grinding wheel. Hold the blade at a 15 to 20 degree angle to the wheel, and move it back and forth to sharpen each side of the blade, one at a time.

Sharpen the Blade With a File

If you have a lawn mower that has a blade that is dull, you know that it is not very effective as it has to be pushed harder to get the job done. Trying to ride on a dull blade can be a bit of a challenge, as it can't cut through the grass as well as a sharp blade can.

It's important to keep your lawn mower blade sharp so that your lawn mower will cut through the grass with ease. One of the most effective ways to sharpen your lawn mower blade is to use a file. A file will remove the nicks from the blade and make the blade sharper and more effective in cutting the grass.

Many people do not know how to sharpen the lawn mower blade with a file. The truth is, it is very simple to sharpen the lawn mower blade with a file.

The first thing you should do is to make sure your lawn mower is not running when sharpening the blade with a file. (If you are not sure how to make sure your lawn mower is not running, please ask someone who knows how to use a lawn mower to help you.)

Once you know your lawn mower is not running, you want to start sharpening the blade with a file. The lawn mower blade with a file is located underneath the lawn mower.

Signs You Need to Sharpen or Replace Your Mower Blade

Maintaining a sharp blade on your mower is important for a few reasons. First, a sharp blade will cut grass clippings better, leaving a neater-looking lawn. A sharp blade will also last longer, since it will not have to work as hard to get the job done.

Finally, a sharp blade will make your mower more fuel efficient, since it will be able to cut the grass so it requires less passes across the yard.

When is it time to sharpen or replace the mower blade on your riding mower? Here are some of the telltale signs you need to make a change. If your lawn is covered in stray clippings more than once a week, the blade is dull and needs to be sharpened or replaced.

If the lawn is uneven or if you make a lot of passes over the same section of your lawn, the blade is dull and is doing more tearing than cutting. Your grass is cut unevenly even with a sharp blade. There are a lot of bare spots in your lawn.

Last Words

Whether you are a professional landscaper or a weekend homeowner, you should know how to sharpen lawn mower blades. A sharp blade is essential to get the best cuts, especially when you are mowing grass. A blade that is dull will make grass look uneven and damaged.

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My father, and his father before him, and his father; for the past 3 generations, my family have always been into gardening. The green fingers is a gift passed down to me and I thoroughly enjoy it! I also have worked in the manufacturing department for Bosch and DeWalt so I like to think I know a thing or two about tools and such!
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