Mitsubishi BD2F Track Adjustment

[MikePhua]

The Mitsubishi BD2F is a well-regarded crawler dozer, known for its compact size, durability, and efficiency in a variety of earthmoving applications. One of the key maintenance aspects of a crawler dozer like the BD2F is proper track tension, which ensures optimal performance and extends the life of the machine. If the track tension is too tight or too loose, it can lead to premature wear, inefficient operation, and even damage to the undercarriage or tracks. This article explores how to adjust the tracks on a Mitsubishi BD2F and provides some best practices for maintaining the undercarriage.
Understanding the Track System on the Mitsubishi BD2F
The track system on a crawler dozer, such as the Mitsubishi BD2F, consists of several components: the track itself, the track rollers, sprockets, and the tensioning mechanism. The primary function of the tracks is to distribute the weight of the machine evenly across a larger surface area, reducing ground pressure and increasing the machine’s stability, especially when working on soft ground.
Proper track tension is crucial for the following reasons:

• It ensures smooth and efficient movement of the machine.
  
• It prevents excessive wear on the track and undercarriage components.
  
• It reduces the risk of track slippage, which can cause damage or decreased productivity.
  
• It allows for proper alignment of the track system, helping to maintain the machine’s balance and control.
  

Signs That Track Adjustment is Needed
Over time, track tension can change due to wear and tear, especially with frequent use in rough or demanding conditions. Here are some signs that the track tension may need adjustment:

1. Track Slippage: If the tracks are too loose, they may slip on the sprockets, reducing traction and causing instability.
   
2. Excessive Track Wear: Loose or tight tracks can cause uneven wear on the track links and rollers, leading to premature failure.
   
3. Unusual Sounds or Vibrations: A loose track may produce clattering or rattling sounds, while a tight track may create resistance, causing strain on the machine’s engine.
   
4. Visible Gaps: If the track sag is visible or noticeable when the machine is in motion, it indicates that the track is too loose.
   

How to Adjust the Tracks on the Mitsubishi BD2F
Adjusting the tracks on a Mitsubishi BD2F involves tightening or loosening the tensioning mechanism to achieve the correct track slack. Below are the general steps to adjust the track tension on this machine:
Tools and Equipment Needed:

• A jack or lifting device (if necessary)
  
• Wrench or socket set
  
• Track tensioning tool (specific to the machine)
  
• A tape measure or ruler for measuring slack
  
• A block or tool to hold the track while adjusting
  

Step-by-Step Guide:

1. Lift the Machine (if required):
   • If the tracks need to be adjusted while the machine is on the ground, ensure the dozer is securely parked on a flat surface.
     
   • For easier access to the track, use a jack or other lifting devices to elevate the machine slightly, taking care to follow safety protocols.
     
2. Locate the Track Tensioning Bolt:
   • The Mitsubishi BD2F has an accessible track tensioning bolt or mechanism that adjusts the tension. This bolt is typically located near the front or rear of the track undercarriage.
     
   • Some models use a grease-filled cylinder or hydraulic tensioner to adjust the track tension. Consult the owner’s manual for the specific location and method.
     
3. Loosen the Locking Bolt:
   • Use a wrench or socket to loosen the locking bolt on the track tensioner. This will allow the tensioner to be adjusted without causing damage.
     
4. Adjust the Track Tension:
   • Use the track tensioning tool to either tighten or loosen the track. For most machines, you will rotate the bolt or hydraulic cylinder in the desired direction to adjust the tension.
     
   • Tighten the track if it is too loose, or loosen it if it is too tight. You can check the proper tension by looking for the recommended slack—typically, there should be around 1-2 inches of slack in the middle of the track.
     
5. Check the Track Tension:
   • After adjusting the track, check the tension by measuring the sag in the track. The ideal slack can vary slightly depending on manufacturer recommendations, but usually, the track should be tight enough to avoid slippage but loose enough to allow for proper movement.
     
   • Use a tape measure or ruler to measure the distance from the ground to the bottom of the track.
     
6. Tighten the Locking Bolt:
   • Once the desired tension is achieved, tighten the locking bolt back in place to secure the adjustment.
     
7. Test the Tracks:
   • Move the dozer slowly in forward and reverse to ensure that the tracks operate smoothly and the tension is properly set. Listen for any abnormal sounds, such as clattering or resistance, that may indicate improper tension.
     

Best Practices for Track Maintenance
Adjusting track tension is just one part of maintaining the tracks on the Mitsubishi BD2F. To ensure long-lasting track performance and reduce the risk of costly repairs, here are some best practices:

1. Regularly Inspect the Tracks: Inspect the tracks for signs of wear, cracks, or damage. Early detection of issues such as worn track links or rollers can help prevent major breakdowns.
   
2. Keep Tracks Clean: Dirt, debris, and mud can cause the tracks to wear more quickly. Clean the tracks regularly to remove build-up and prevent accelerated wear.
   
3. Lubricate Track Components: Regular lubrication of the track rollers and other moving parts can reduce friction and prevent premature wear.
   
4. Monitor Track Tension Periodically: Track tension should be checked every 100-200 hours of operation, or whenever you notice any signs of abnormal performance.
   
5. Operate on Appropriate Terrain: Operating on overly rocky, uneven, or soft terrain can increase track wear and require more frequent tension adjustments.
   

Conclusion
Proper track tension is essential for maintaining the efficiency and longevity of the Mitsubishi BD2F dozer. Regular track maintenance, including timely tension adjustments, helps prevent issues such as track slippage, uneven wear, and engine strain. By following the outlined steps and best practices, operators can ensure their equipment performs at its best, reducing downtime and extending the life of their track system.