How to Remove Tracks and Tensioner from John Deere 330 Excavator

[MikePhua]

When performing maintenance or repairs on an excavator, there are times when you need to remove the tracks and the track tensioner. For the John Deere 330 (JD 330) excavator, correctly removing the tracks and tensioner is essential to ensure that the machine operates smoothly and without causing damage. In this article, we will walk you through the proper steps to safely and efficiently remove the tracks and tensioner from the John Deere 330 excavator.
Preparation for Track Removal

1. Safety Precautions
   Before beginning any maintenance tasks, ensure that all necessary safety protocols are followed. Turn off the machine, disconnect the power, and make sure the hydraulic system is not under pressure to avoid accidental operation. Wear appropriate personal protective equipment such as gloves and safety glasses to protect yourself during the process.
   
2. Loosen the Track Tensioner
   Before removing the track, you must first loosen the track tensioner. In most cases, the track tensioner uses hydraulic pressure to keep the tracks tight. Locate the track tensioner and use the appropriate tool to release the pressure. Ensure that the tensioner is fully loosened to allow the tracks to come off easily.
   

Removing the Track

1. Lift the Excavator
   Use the lifting function of the excavator to raise the machine. Ensure that the machine is placed on a flat, solid surface, and then use support stands to stabilize the machine. This ensures that the excavator does not tip over or move during the process.
   
2. Remove the Track Links
   Once the track tensioner is loosened, you can begin removing the track links. Typically, you will start by removing a connecting bolt that holds the track together. If needed, you can use a track removal tool (such as a track separator) to help loosen and remove the track. Ensure the track is fully loosened and ready to be removed from the machine.
   
3. Roll the Track Off
   In most cases, after loosening the track, you will need to manually or with the help of tools roll the track off the wheels. Use rollers or other appropriate tools to carefully move the track off the hubs. Ensure that the track is balanced and avoid letting it fall or cause damage.
   

Removing the Track Tensioner

1. Disassemble the Tensioner Components
   After the tracks are removed, you can proceed to remove the track tensioner. The tensioner is typically made up of several parts, including the tensioning bolts, hydraulic cylinder, and locking components. Use the proper tools to disassemble these parts and carefully remove the tensioner from the machine. Be cautious not to damage any of the components during removal.
   
2. Inspect the Tensioner
   Once the tensioner is removed, it is a good idea to inspect its components for wear and tear. Check the hydraulic cylinder, seals, and other components for any signs of leaks or damage. If any parts are found to be damaged, replace them as necessary.
   

Reinstalling the Track and Tensioner

1. Install the Track Tensioner
   When reinstalling the track tensioner, ensure that all parts are installed properly and securely. Adjust the tensioner to the recommended tension to ensure the track is neither too tight nor too loose. Follow the manufacturer's guidelines for proper installation.
   
2. Install the Track
   Place the track back onto the excavator, ensuring that it is correctly positioned on the wheels. Use the appropriate tools to secure the track in place. Make sure the track is firmly installed and that there are no loose components.
   
3. Adjust the Track Tensioner
   After the track is installed, you need to adjust the tensioner. Check the tension of the track and ensure it meets the required specifications. If the track is too loose, adjust the hydraulic cylinder pressure to tighten the track properly.
   

Conclusion
Removing and reinstalling the tracks and track tensioner on the John Deere 330 excavator requires careful attention to detail. Begin by loosening the track tensioner and removing the track links, then proceed to disassemble and remove the tensioner. Use the correct tools to ensure the machine remains stable and safe during the process. After the tensioner is removed, inspect its components for any damage and replace them if necessary. Finally, reinstall the track and tensioner according to the manufacturer’s recommendations. If you encounter any issues during the process, seek assistance from a professional to avoid unnecessary damage.