Farming equipments, Business Solutions

How to Change Blades on a Kuhn Disc Mower – Complete Guide

how to change blades on a kuhn disc mower

A Kuhn disc mower is a reliable and efficient piece of equipment designed to cut hay or forage crops with ease. However, like any other machinery, regular maintenance is crucial to keep it running smoothly and ensure optimal performance. One important aspect of maintenance is changing the blades on the disc mower. In this article, we will guide you through the step-by-step process of changing blades on a Kuhn disc mower.

Tools Needed

Before we dive into the process, it’s essential to gather the necessary tools to complete the blade replacement task efficiently. Here’s a list of tools you will need:

  • Socket wrench set: A socket wrench set is required to loosen and tighten the retaining bolts.
  • Torque wrench: A torque wrench is necessary to ensure the blades are properly tightened according to the manufacturer’s specifications.
  • Safety gloves: Safety gloves are essential to protect your hands from any potential harm while handling the blades and machinery.
  • Safety goggles: Safety goggles provide eye protection from debris or any flying objects during the blade replacement process.
  • Workbench or sawhorses: A workbench or sawhorses are needed to position the Kuhn disc mower at a comfortable height for easy access to the blades.
  • Blade removal tool (if available): A blade removal tool can be used to assist in removing the old blades from the disc spindle.
  • Replacement blades: Make sure to have the appropriate replacement blades on hand before starting the blade replacement process.

Step 1: Safety Precautions

Always prioritize safety when working with machinery. Before starting the blade replacement process, ensure that the disc mower is turned off and disconnected from any power source. Additionally, wear safety gloves and goggles throughout the entire procedure to protect yourself from any potential harm. Safety should never be overlooked while working with any type of equipment.

Step 2: Positioning the Mower

To access the blades easily, you will need to position the Kuhn disc mower on a workbench or sawhorse. Make sure the mower is stable and secure before proceeding to prevent accidents or injuries. Positioning the mower at a comfortable height will allow you to work efficiently and safely.

Step 3: Removing the Old Blades

  1. Look for the retaining bolts that hold the blades in place. Typically, there are two bolts per blade, positioned on each side of the blade. These bolts are what keep the blades securely attached to the disc spindle.
  2. Using a socket wrench, carefully loosen and remove the retaining bolts for each blade. It’s important to keep track of the bolts and ensure they don’t get misplaced. Loosening the bolts will allow you to remove the old blades.
  3. Once all the retaining bolts are removed, gently slide the old blades off the disc spindle. Be cautious while handling the blades to avoid any accidental injuries. It’s always a good idea to wear safety gloves during this step to protect your hands.

Step 4: Cleaning and Inspection

Before installing the new blades, take the time to clean the disc spindle and blade mounting area properly. Remove any debris, dirt, or grass clippings that may have accumulated. Additionally, inspect the spindle and mounting area for any signs of damage or wear. If any parts appear damaged, consider replacing them before proceeding further. Cleaning and inspecting the components will ensure the smooth operation of the mower and prevent any potential issues.

Step 5: Installing the New Blades

  1. Take the replacement blades and position them onto the disc spindle, ensuring that they align properly with the mounting holes. Proper alignment is crucial for the blades to function effectively.
  2. Insert the retaining bolts through the blade mounting holes and into the disc spindle. Make sure the bolts are inserted securely to hold the blades in place.
  3. Tighten the bolts using a socket wrench, making sure they are securely fastened. Be cautious not to overtighten, as it can damage the blade or spindle. Tightening the bolts properly will ensure that the blades are securely attached to the disc spindle.
  4. Repeat this process for each blade until all are securely attached. It’s important to take the time to properly install each blade to ensure optimal performance of the disc mower.

Step 6: Torque Check

To ensure the blades are properly tightened, perform a torque check using a torque wrench. Refer to the manufacturer’s guidelines to determine the appropriate torque specification for the retaining bolts. Apply the torque wrench to each bolt, checking that they meet the recommended torque value. Properly torquing the blades will prevent them from coming loose during operation and ensure safe and efficient cutting.

Step 7: Final Inspection

Once the new blades are installed and properly torqued, conduct a final inspection of the entire disc mower. Ensure that all components are securely fastened and there are no loose or damaged parts. Additionally, double-check that the blade alignment is correct to avoid any issues during operation. A thorough final inspection will give you confidence in the performance and safety of your Kuhn disc mower.


By following these step-by-step instructions, you can easily change the blades on your Kuhn disc mower. Remember to prioritize safety, gather the necessary tools, and perform regular maintenance to keep your disc mower in optimal condition. Properly maintained blades will ensure efficient cutting, reducing downtime and increasing productivity. Happy mowing!


What tools do I need to change the blades on a Kuhn disc mower?

You will need a socket wrench set, torque wrench, safety gloves, safety goggles, workbench or sawhorses, blade removal tool (if available), and replacement blades.

How do I position the Kuhn disc mower for blade replacement?

Position the mower on a stable workbench or sawhorse at a comfortable height for easy access to the blades.

How do I remove the old blades from the disc spindle?

Loosen and remove the retaining bolts using a socket wrench, then gently slide the old blades off the disc spindle.

How do I install the new blades on the Kuhn disc mower?

Position the replacement blades onto the disc spindle, insert and securely tighten the retaining bolts using a socket wrench. Perform a torque check to ensure proper tightening.


About M. Faisal Riaz

With a robust background spanning 6 years, Faisal is a seasoned professional in digital marketing, advertising, content creation, and SEO strategy. Faisal brings a wealth of expertise to cultivate and amplify the Farmry brand in the digital landscape. Passionate about innovative marketing solutions, Faisal is dedicated to driving Farmry's success in the ever-evolving world of agriculture. 🚜✨ #MeetTheTeam #FarmryLeadership #MarketingMaestro

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