
Keeping your lawnmower blades sharp is essential for achieving a sharp cut on your lawn. Over time, Flymo lawnmower blades can become worn and will need to be replaced. This guide will show you how to replace plastic Flymo lawnmower blades and ensure your lawnmower is working optimally. First, make sure your appliance is switched off and unplugged from the mains. Next, remove the old blades by turning your lawnmower over and sliding the blades out of their holes. To fit the new blades, simply slide them back into the same holes. You will know they are secure when you hear a click.
| Characteristics | Values |
|---|---|
| Frequency of blade replacement | Blades should be inspected before the first cut of the season and regularly thereafter. |
| When to replace blades | Blades should be replaced when they have nicks, dents, or appear eroded. |
| Steps to replace blades | 1. Switch off and unplug the appliance. 2. Place a heavy-duty glove on your hand or wrap a tea towel around the blade. 3. Unscrew the nut using the Flymo spanner and lift the blade off. 4. Adjust the height of the blade using the spacers. 5. Place the blade onto the lawnmower with the flat side facing downwards. 6. Place the screw back onto the blade and tighten it with the spanner. Avoid overtightening. |
| Blade characteristics | Blades should be sharp to achieve a sharp cut. |
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What You'll Learn

Switch off and unplug the Flymo lawnmower
Before starting any work on your Flymo lawnmower, it is imperative that you switch off the appliance and unplug it from the mains to ensure your safety. This is the first and most crucial step in the process of replacing the plastic blades. By doing so, you eliminate any risk of accidental activation or electrical hazards.
When you are ready to begin, locate the power switch on your Flymo lawnmower and turn it to the "off" position. This step ensures that the lawnmower is completely powered down and will not start unexpectedly during the blade replacement process. Once it is switched off, proceed to unplug the power cord from the electrical outlet or power source. This measure further guarantees your safety and prevents any possibility of accidental activation.
It is important to treat this step with caution and attention. Working with electrical equipment requires extreme care, and your safety should always come first. By switching off and unplugging your Flymo lawnmower, you create a safe environment to work on replacing the plastic blades. This simple yet vital step lays the foundation for the rest of the blade replacement process and helps ensure a smooth and hazard-free experience.
Once the lawnmower is switched off and unplugged, you can proceed with the next steps of replacing the plastic blades, which include removing the old blades, preparing the new blades, and installing them securely. Throughout the process, always be mindful of your safety and refer to the manufacturer's instructions or seek professional advice if you have any concerns or uncertainties.
Remember, safety should always come first when working with any electrical equipment, including your Flymo lawnmower. By taking the time to switch off and unplug the appliance, you significantly reduce the risk of accidents and create a much safer environment for yourself and those around you. This simple step is an essential practice in lawnmower maintenance and repair tasks.
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Remove the old blades
To remove the old blades of your Flymo lawnmower, start by switching off the appliance and unplugging it from the mains to ensure your safety. Next, turn the lawnmower over and locate the blades. Simply slide the blades out of their holes to remove them. You may need to use a heavy-duty glove or wrap a tea towel around the blade for protection before removing it.
If your Flymo lawnmower uses a nut and bolt mechanism to secure the blades, you will need to unscrew the nut using a Flymo spanner or an appropriate tool. Once the nut is removed, lift the blade off, being careful of the sharp edges. Underneath the blade, you will find spacers that can be adjusted to change the cutting height. It is recommended to use no more than two spacers.
Inspect the old blades for any nicks, dents, or signs of erosion. Worn blades can affect the performance of your lawnmower, resulting in a patchy and uneven lawn. Regularly inspecting your blades before the first cut of the season and sharpening or oiling them as needed can help extend their lifespan. However, if the blades are damaged or heavily worn, they will need to be replaced.
When removing the old blades, be cautious of any dirt or garden debris that may have built up over time. This debris can affect the cutting performance of your Flymo lawnmower. Ensure that you clean or replace any heavily soiled components to maintain optimal performance.
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Fit the new blades
To fit new plastic blades to your Flymo lawnmower, first make sure your appliance is switched off and unplugged from the mains. Place a heavy-duty glove on one hand so you can hold the blade in place. If you don't have a glove, wrap a tea towel around the blade instead. Then, unscrew the nut using the Flymo spanner and lift the blade off.
Underneath the blade are a couple of spacers. You can use spacers to adjust the height of the blade so you can cut longer at the beginning of the season and shorter as you cut the lawn more regularly. It is advised not to use more than two spacers. Place the new blade onto the lawnmower with the flat side facing downwards towards the grass. Place the screw back onto the blade. Hand screw it on first and then tighten it with the spanner. Try not to overtighten the blade as this can make it very difficult to remove when you need to replace it next.
Now your new blade is fitted, your lawnmower should be back up and running and cutting your grass to perfection! You will know the new blades are secure when they click into place. If you need to change the cutting height of your lawnmower's blades once they've been replaced, you can invert the blade. To do this, simply remove the blade unit by twisting it and pulling it away, then turn it over and reattach it the other way around.
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Adjust the blade height
Adjusting the blade height on your Flymo lawnmower is a straightforward process. Before starting, make sure your lawnmower is switched off and unplugged for safety.
To adjust the blade height, you will need to first remove the blade unit by twisting and pulling it away from the lawnmower. You can then adjust the height by adding or removing spacers underneath the blade. These spacers allow you to cut longer at the beginning of the season and shorter as you progress through the season with more regular cuts. It is recommended to use no more than two spacers. Once you have adjusted the height, simply reattach the blade unit by twisting and pulling it back into place.
If you want to change the cutting height of your lawnmower blades after replacing them, you can invert the blade unit by removing, turning it over, and reattaching it the other way around.
For more detailed instructions, you can refer to the user manual provided with your Flymo lawnmower, which should include specific information on how to adjust the blade height for your particular model. Additionally, Flymo provides how-to videos for specific models, which can be found on their website.
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Test the new blades
Once you've fitted your new plastic Flymo blades, it's important to test them out to ensure they're working correctly. Here's a step-by-step guide to testing your new blades:
- Safety First: Before testing the new blades, ensure your Flymo lawnmower is switched off and unplugged from the mains. This is an essential safety precaution.
- Visual Inspection: Take a close look at your newly installed blades. Ensure they are straight, undamaged, and securely attached. Check that the blade unit is correctly positioned and attached tightly.
- Test Run: Now it's time to test the blades. Plug your Flymo back into the mains and turn it on. Start by testing on a small patch of grass, observing the mower's performance. Ensure the mower is cutting the grass evenly and effectively.
- Adjust as Needed: If the blades are not cutting properly, you may need to adjust the height or sharpness. To adjust the height, invert the blade unit by twisting and pulling it away, turning it over, and reattaching it. To sharpen the blades, use a sharpening tool, such as a diamond sharpening block, or consider taking it to a professional sharpening service.
- Clean and Maintain: After testing, clean your Flymo and the blades to remove any grass clippings or debris. Regular cleaning and maintenance will help keep your blades in good condition and prolong their sharpness.
- Retest: After any adjustments or maintenance, retest the blades on a small area of grass. Continue to observe the mower's performance and make any necessary fine-tuning adjustments until you achieve the desired cut.
Remember, it's important to inspect your Flymo blades regularly and keep them sharp or replace them when necessary. This will ensure your lawnmower maintains its performance and leaves your lawn looking healthy and well-manicured.
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Frequently asked questions
Inspect your blades before the first cut of the season and then regularly to see if they need sharpening, oiling or replacing. If the blades have any nicks, dents or appear eroded, they will need to be replaced. You can also tell if the blades need replacing by the quality of your lawn. A worn blade will affect the performance of your lawnmower and leave your lawn patchy and uneven.
First, make sure your appliance is switched off and unplugged from the mains. Place a heavy-duty glove on your hand or wrap a tea towel around the blade, then unscrew the nut using the Flymo spanner and lift the blade off. Place the new blade onto the lawnmower with the flat side facing downwards towards the grass. Place the screw back onto the blade and hand screw it on first, then tighten it with the spanner.
Turn your lawnmower over and slide the blades out of their holes.
Remove the blade unit by twisting and pulling it away, then turn it over and reattach it the other way around.
The blade on a Flymo lawnmower can last for some time just by keeping it sharpened. However, over time it can become worn and will need to be replaced.









































