If you’re like most people, you probably dread the chore of sharpening lawn mower blades. It can be a tricky process, and it’s easy to make a mistake that could ruin your blade. In this article, we will show you how to sharpen the blades of your lawn mower without removing them from the machine. We’ll also provide some tips on how to get the job done quickly and safely.
So don’t put off sharpening your blades any longer – follow these simple steps and get the job done in no time!
Tools You’re Going to Need:
- WD-40 or a similar lubricant
- A rag
Step 1: Make Preparations to Have The Blade Sharpened
First and foremost, you’re going to need a grinder. You can use a handheld grinder, an electric bench grinder, or even a rotary tool with a grinding attachment. Next, gather up some gloves and safety glasses to protect yourself from flying debris. Finally, get some WD-40 or another lubricant – this will help to keep the blade cool while you’re working.
Place the lawn mower on its sides so that the blade is facing up. This will make it easier to access and sharpen.
Step 2: Sharpen the blade
Start by applying some lubricant to the blade. This will help to keep it cool while you’re working and prevent the grinder from overloading.
Secure the blade: Backward resistance is not required to remove the blade, but you should make sure it’s secure. This prevents any movement while you’re sharpening the blades, ensuring that your knife stays in one piece as you sharpen it. As a result, to ensure that the blade does not move when grinding, place a 2×4 over the cutting deck and below the knife.
Thoroughly wash the blade with soap and water to remove any debris or build-up. This will help to ensure a clean and sharp edge while you’re sharpening.
Grind the blade: Grind the blade using a grinder or rotary tool. Be careful not to overheat the blade – if it starts to glow red, you’re going too fast.
Once you’ve ground the edge of the blade, move on to the bevel. The bevel is the angled section of the blade that helps to give it its cutting power. To sharpen it, hold the grinder at a consistent angle and slowly grind away at the bevel.
Polish the blade: Polish the blade with fine-grit sandpaper to remove any burrs or rough edges. Make sure that the blade is completely cool before you start polishing.
Reassemble the lawn mower: Once you’ve sharpened and polished the blade, it’s time to put your lawn mower back together. Reattach the spark plug wire and put the lawn mower back in its upright position. You’re now ready to get out there and start mowing!
- Be careful not to apply too much pressure when grinding, as this could damage the blade.
- Make sure to move the grinder in a consistent motion across the entire edge of the blade.
- Grind the blade using a grinder or rotary tool.
- Polish the blade with a fine-grit sandpaper to remove any burrs or rough edge.