How to Sharpen Lawn Mower Blades Without Removing?

How to Sharpen Lawn Mower Blades Without Removing?

It is necessary to Sharpen the blade of your lawn mower at least once a year. Even, if it is a new lawn mower you need to sharpen new lawn mower blade. However, some homeowners may believe that this is unneeded. After all, they’ll still cut grass even if the blade is dull, right? True, but it isn’t the point. Sharp blades do less harm to the grass you’re mowing, but they also cut more evenly, making your lawn appear nicer once you’re done.


That means you’ll need to sharpen your lawnmower blade regularly to keep your grass as healthy as possible. In some cases if you don’t sharpen your mower blade or ignore mower blade maintenance you can experience the issue of stuck lawn mower with a stuck blade bolt. Then your gardening work will be left undone. That’s why sharpening a lawn mower blade is necessary task. Now you will be asking Can you sharpen a lawn mower blade without removing it? Let’s read and learn more about it.

Signs that You Need to Sharpen Your Lawn Mower Blades

The following are the sign that might indicate that you need to sharpen your Lawn Mower blade:-

  • Uneven Grass Height – An uneven lawn clearly shows that your Lawn Mower blade is damaged. If adjusting the alignment or tightening the screws doesn’t work, it’s time to sharpen the blade.
  • Discolored Lawn – A Lawn Mower with a dull blade can create yellow or brown spots on your grass, exposing it to disease.
  • The Blade is Dented or Bent – Looking at the blade itself might sometimes be the simplest method to identify whether there’s a problem with the mower. Over time, blades can be worn down. If the blade is curved or has large dents, it should be sharpened or replaced entirely.
  • Mowing Areas Multiple Times – A dull mower blade may require many passes over the same area. If this happens regularly, it’s time to sharpen or replace the blade.
  • Frequent Stalling – A lawn mower might stall due to various factors. Here’s an example: dull blades that cause the engine to work too hard. If your mower stalls in thick grass, try sharpening the blade to see if it helps.

How to Sharpen Lawn Mower Blades Without Removing Them?

You already know that you can sharpen the mower blades without removing them from the lawnmower. All you’ll need is some time, tools, and clear instructions. You are aware that all mending operations need the use of specific tools. Sharpening a mower blade is not unique. Let’s take a quick look at the necessary tools for How to sharpen riding mower blades without removing.

Tools You’ll Need To Sharpen Lawn Mower Blades

  • File or a rotary sharpening tool
  • Rags 
  • Socket / Ratchet Set
  • Vise
  • Gloves 
  • A mild cleaner
  • Your lawnmower
  • WD – 40 lubricant

The flat file or rotary sharpening tool is likely to be the most uncommon of these pieces of equipment. On the other hand, both are handy for more than simply sharpening lawn mower blades, so if you don’t already have any, it could be worth investing in a set. Aside from that, it would be best if you had all you require. Both the cleaning and the lubricant (WD-40) are optional. Both can make your task a bit simpler while also extending the life of your lawn mower blade. You can sharpen your lawn mower blade without them if you need it.

Procedure To Sharpen Lawn Mower Blades

Can you sharpen a lawn mower blade without removing it 
  1. If your Lawn Mower is electric, be sure your mower isn’t plugged in.
  2. Make sure the key isn’t in your gas lawnmower.
  3. Unplug the spark plug from the ignition wire to be on the safe side.
  4. We urge that you use suitable safety equipment, such as cut-resistant gardening gloves, safety eyewear, and shoes.
  5. Depending on your model, flip the mower on its side or open the side grass shot to access the mower blade.
  6. Make sure the carburetor and gas filter are on the top side of the mower if you tip it.
  7. Make sure the mower doesn’t tip over and slam into your feet.
  8. Remove as much caked-on yard detritus and mud as you can with a pail of water, a putty knife, and a brush.
  9. Depending on what you have on hand and how comfortable you are with it, you can use a metal file or a portable electric grinder with a metal disc.
  10. Make sure you sharpen the top face of the blade only in one direction. Instead of sawing back and forth, you’ll raise the grinder or file each time.
  11. Ideally, the top edge should be at a 45-degree angle.
  12. After completing one side of the blade, spin it and repeat the process on the opposite side. You won’t be able to tell if the blade is balanced because you won’t be pulling it off the mower, so be sure both sides are sharpened evenly.
  13. Then use a deburring rod to smooth off any rough edges on the underneath edge and double that all of the nuts are secure.
  14. Now it’s time to mow the lawn.

Pro Tips

  • When the mower’s gas tank is empty, try to sharpen the blade.
  • Replace the blade with a new one if it is entirely damaged.

Safety Measure to Ensure While Sharpening Lawn Mower Blades

  • Disconnect the spark plug to assure that the mower does not start while you’re working. If you’re unsure where the spark plug is on your mower, check the thick rubber cover attached to a white or light-colored ceramic post. It’s as easy as wriggling the top cap off to disconnect it.
  • Always turn off the mower’s power source. Always use gloves, eye and ear protection, and long sleeves while sharpening by hand or machines.
  • If you have a history of chest, joint, or back pain, you should reassess your weekly mowing schedule. When pulling the pull cord to start it, be extra careful.
  • Before you mow, make sure your yard is clear of all trash, such as branches, pebbles, rocks and toys.

Closing Thoughts 

So, Is it possible that the lawn mower blades can be sharpened without removing them from the mower? Yes, it is possible, and now you can do it. After reading this article, you should have a better understanding of how to sharpen your Lawn mower blades without removing them. Knowing how to properly repair your mower and its necessary to maintain your lawn neat and clean. Additionally, sharpening Lawn mower blades using this procedure is simple and quick. As a result, if you carefully follow these step-by-step procedures, you can be assured that the blades will be sharpened properly.


Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *