How to Change Blades on Husqvarna Zero Turn Mower Easily

By | January 3, 2024

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With over a decade of experience in landscaping and a deep understanding of Husqvarna’s engineering, I’m here to guide you through the precise steps to change blades on your Husqvarna zero turn mower.

This process is crucial for maintaining a sharp, efficient cut and ensuring the health of your lawn.

Key Takeaways

  • Step-by-step instructions to safely and efficiently change blades on a Husqvarna zero turn mower, ensuring a pristine lawn.
  • Details on disconnecting power and draining fuel to prepare the mower for a safe blade replacement process.
  • Guidance on choosing the correct blade using the OEM number and tips for proper installation to maintain mower performance.
  • Advice on regular blade inspection, sharpening, and cleaning to extend the lifespan of the mower blades and enhance lawn appearance.

Safety First: Preparing Your Lawn Mower

Prior to starting the blade replacement, we must highlight the significance of safety. After all, dealing with sharp mower blades and powerful engines can pose risks if proper precautions are not taken.

So, let’s start by disconnecting the power and draining the fuel to guarantee a secure and hazard-free experience.

Disconnect Power

The initial move towards safety involves disconnecting your gas-powered lawn mower’s power by detaching the spark plug cable.

The spark plug is typically located on the back or side of the engine, with a short wire leading to it, similar to how homepage and tailored ads pull you towards relevant content.

By disconnecting the spark plug, you protect yourself against accidental engine start-ups while working on the mower.

Drain Fuel (Optional)

Draining the fuel from your lawn mower should precede the blade replacing process. Draining the fuel prevents unwanted leakage and deterioration of the fuel over time.

The easiest way to drain fuel from a lawn mower is to simply run the mower until it runs out of gas.

This way, you’ll be able to track outages and protect your mower and yourself from any potential hazards associated with fuel leaks.

Also Read: Bad Boy Fuel Gauge Not Working

Accessing the Mower Deck

Husqvarna parked

The mower deck houses the blades, which are responsible for cutting your lawn to perfection.

In the following subsections, we’ll cover how to position and secure your mower, so you can easily access the mower deck and blades.

Related: How To Adjust Mower Deck On Husqvarna Zero Turn

Position the Mower

To access the mower blades, you’ll need to use a mower lift. This positioning grants you easy access to the undercarriage of the deck, so you can proceed with the blade replacement process.

Secure the Mower

Stability and safety during the blade replace process necessitate securing your mower. Utilize wheel chocks in front of and behind the wheels to keep the mower in place. Alternatively, you can use X-Chocks or rubber chocks for added stability.

By properly securing the mower, you’ll avoid any unexpected movement during the blade removal and installation process.

Blade Removal Process

Husqvarna remove blade

With the mower properly positioned and secured, we can now proceed with the old blade removal. Following the proper steps during this process ensures that you won’t cause any damage to the mower or the blades.

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Loosen the Retaining Bolt

Start by using a wrench to loosen the retaining bolt that secures the blade to the mower. While doing so, place a block of wood between the mower deck and the blade to prevent it from rotating.

Remember to wear safety gloves to protect your hands from sharp edges and debris.

Turn the bolt counterclockwise, or to the left, to loosen it. This way, you’ll be able to safely remove the old blade without causing any damage.

Remove the Old Blade

Carefully remove the old blade, paying close attention to its orientation. This will be crucial for properly installing the new blade later on.

Be sure to inspect the old blade for any signs of damage or wear, as this will help you understand the condition of your mower and the performance it has been delivering.

Choosing and Installing a New Blade

Husqvarna attach blade

With the old blades removed, we can proceed to select and install a new one. Choosing the right replacement blades is key to achieving the best cutting performance.

Select the Right Blade

To ensure compatibility with your Husqvarna zero turn mower model, refer to the OEM number assigned to the blade by the manufacturer. Cross-reference this number with your mower model when searching for replacement blades.

Husqvarna offers a variety of blade types, including high-lift, mulching, low-lift, and medium-lift blades, designed to meet specific mowing needs and grass conditions.

Install the New Blade

With the new blade in hand, align it with the mandrel star and tighten the retaining bolt to the correct torque. The torque range for tightening the blade bolt is typically between 70-90 foot-pounds.

Consult your mower’s owner manual for the most accurate specifications.

Once the new blade is securely fastened, you’ll be ready to reassemble your mower and test it for proper operation.

Final Checks and Reassembly

Before starting your mower and returning to lawn maintenance, it’s important to conduct final checks and assemble the mower back together.

Ensuring that everything is in order and functioning properly will guarantee optimal performance and a longer lifespan for your lawn mower blades.

Check Blade Balance

To prevent vibrations and uneven cutting, it’s important to have a well-balanced blade. You can test the balance of your new blade using a blade balancer or a simple method involving a screwdriver.

A balanced blade will ensure smooth operation, reducing the strain on the blade and prolonging its lifespan.

Reassemble and Test

Now it’s time to reconnect the spark plug cable, refill the fuel tank, and test your mower for proper operation. Start the engine and listen for any unusual noises or vibrations.

If everything sounds and feels smooth, you’re ready to get back to mowing your lawn with your newly installed blade.

Maintenance Tips for Longer Blade Life

Husvarna new blades

To ensure a long life for your mower blades and a well-kept lawn, regular maintenance is crucial.

Regular Inspection

Inspect your mower blades regularly for damage, wear, and proper balance. It’s generally advised to inspect and sharpen your blades after every 20 to 25 hours of use.

Additionally, assess the condition of your grass after mowing to identify any potential problems.

Regular inspection will help you keep your mower in top shape and prevent any damage to your lawn, so it’s important to watch for any signs of wear or malfunction.

Proper Sharpening

Sharpen your mower blade evenly and at the correct angle to maintain cutting efficiency. A hand file, angle grinder, rotary tool, or bench grinder are effective tools for sharpening blades.

Remember to sharpen the blade at an angle of approximately 45 degrees, depending on your settings, ensuring a sharp cutting edge for a clean and even cut.

Cleaning the Mower Deck

Clean the mower deck regularly to prevent buildup of grass clippings and debris. A clean deck ensures that your blade can cut efficiently, reducing the strain on the blade and prolonging its lifespan.

Use a lawn mower deck scraper, a putty knife, and a wire brush to effectively clean the deck and keep your mower in optimal condition.

Safety Disclaimer

Always read and follow the safety instructions provided in your mower’s operator manual. Disconnect the spark plug and ensure the mower is cool and stationary before performing any maintenance.

Wear appropriate protective gear, including safety gloves and eye protection, to guard against potential injuries from sharp edges or debris.

If you are unsure about any step of the process or do not have the proper tools, it is highly recommended to seek assistance from a professional.

Professional Advice

Changing the blades on your lawn mower is a routine maintenance task that can significantly improve the quality of your lawn’s appearance.

However, it requires a certain level of mechanical skill and understanding of your mower’s design.

If you are not confident in your ability to safely remove and install new blades, or if you notice any signs of damage to the mower beyond the blades themselves, consider taking your mower to a certified Husqvarna service center or consulting with a professional lawn mower maintenance technician.

They have the expertise to ensure that your mower is serviced correctly and safely, which not only protects you from harm but also extends the life of your mower.


Maintaining your Husqvarna zero turn mower’s blades is essential for keeping your lawn looking its best. By following the steps outlined in this blog post, you can successfully change your mower blades, ensuring optimal performance and a longer lifespan.

Remember to prioritize safety, choose the right replacement blade, and perform regular maintenance to keep your mower running smoothly.

With proper care and attention, your Husqvarna zero turn mower will provide you with years of reliable service, and your lawn will be the envy of the neighborhood.

So, go ahead, replace those worn-out blades, and get back to enjoying a beautifully manicured lawn.

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Frequently Asked Questions

How to change blades on a Husqvarna z254f zero turn mower?

To replace the blades on a Husqvarna z254f zero turn mower, disengage the mower’s cutting deck and raise it to its highest position. Remove the existing blades and install the new ones by aligning the center hole with the mounting bolt on the engine shaft. Re-engage the cutting deck and you’re ready to mow.

How do you sharpen the blades on a Husqvarna zero turn mower?

To sharpen Husqvarna zero turn mower blades, use a hand held angle grinder and then reinstall. Balancing the blades is an optional step that may take an extra few minutes.

How often should I inspect my lawn mower blades?

Inspect your lawn mower blades every few weeks or after every 20 to 25 hours of use to ensure they remain sharp and free of damage.

What safety measures should I follow when changing my mower blades?

Always disconnect the power, drain the fuel, and wear safety gloves to ensure a safe blade replacement process.

How can I determine if my lawn mower blade is balanced?

To determine if your lawn mower blade is balanced, you can use a blade balancer or affix a screwdriver to a bench and use a simple method.