Caterpillar 955K Track Woes: Troubleshooting and Solutions

[MikePhua]

Introduction
The Caterpillar 955K is a well-regarded crawler loader, known for its strength and reliability in tough work environments. However, like any heavy equipment, it can experience mechanical issues. One common problem faced by operators is track-related issues, which can impede the machine’s ability to function efficiently. This article provides a comprehensive guide to troubleshooting and resolving track woes on the 955K.
Common Track Problems and Causes

1. Track Slack and Tension Issues
   • Cause: Over time, the tracks on the 955K can become loose or too tight. This can occur due to worn-out track components, improper adjustment, or inadequate lubrication.
     
   • Solution: Start by inspecting the track tension. The track should be neither too tight nor too loose. Use the recommended procedure for adjusting the tension, which can usually be done by adjusting the track adjuster. If the tracks are excessively loose or tight despite adjustments, inspect the track for damage and replace any worn-out components, such as the track rollers or sprockets.
     
2. Track Wear and Damage
   • Cause: Track wear is a natural occurrence, but excessive wear can result from rough operating conditions, improper maintenance, or driving on hard surfaces.
     
   • Solution: Check the track for uneven wear or damage such as cracked or missing track links. If the track is worn beyond repair, it may be necessary to replace the entire track or specific damaged components like the track shoes or links. Ensure the machine is used on appropriate surfaces to minimize wear.
     
3. Track Skid and Slippage
   • Cause: When the 955K’s tracks slip or skid, it can be a result of low tension, worn-out sprockets, or improper ground conditions.
     
   • Solution: First, check the track tension and adjust it as needed. Inspect the sprockets for wear; worn sprockets may fail to engage the tracks properly, causing slippage. Replace any worn sprockets and ensure that the machine is being used on stable, suitable ground.
     
4. Uneven Track Wear
   • Cause: Uneven wear patterns can result from improper track alignment, faulty undercarriage components, or misadjusted tension.
     
   • Solution: Regularly inspect the undercarriage components, including the rollers, idlers, and track links. Replace any parts that show signs of excessive wear. Adjust the track alignment if necessary to ensure even wear. Additionally, ensure the track tension is properly set.
     
5. Undercarriage Component Failures
   • Cause: The 955K’s undercarriage, including rollers, sprockets, and track shoes, can experience failures due to constant stress and strain from heavy work.
     
   • Solution: Inspect the undercarriage regularly for signs of wear, cracks, or damage. Pay particular attention to the rollers and sprockets, which are subject to intense wear. If any components are found to be faulty, replace them with new parts to ensure optimal performance.
     
6. Track Misalignment or Derailment
   • Cause: Track derailment or misalignment can happen when the machine operates on uneven ground or if the track has been improperly adjusted.
     
   • Solution: Check for any misalignment in the track and adjust accordingly. Ensure the track adjuster is in proper working order and replace any damaged undercarriage components. If derailment occurs, carefully realign the tracks and check for any damaged parts that could be causing the issue.
     

Preventative Maintenance Tips

1. Regular Inspections: Inspect the tracks, undercarriage components, and tension regularly to catch issues early before they become major problems. Look for signs of wear, cracking, or damage.
   
2. Proper Tensioning: Follow the manufacturer’s guidelines for track tensioning. Both too tight and too loose can cause significant issues in track performance and longevity.
   
3. Keep Tracks Clean: Keep the tracks and undercarriage free from dirt, debris, and vegetation. These can cause premature wear and reduce the efficiency of the tracks.
   
4. Lubricate Regularly: Regular lubrication of the track components will reduce friction and wear, extending the lifespan of the tracks and associated components.
   
5. Check for Proper Alignment: Ensure that the tracks are properly aligned and that the undercarriage components are functioning correctly. Misalignment can cause uneven wear and eventually lead to track issues.
   

When to Seek Professional Help
If the track issues persist after trying the above solutions, it may be time to call in a professional mechanic. If you notice severe undercarriage damage or problems with the drive system, it is essential to consult a specialist who can provide a more in-depth diagnosis. Heavy equipment mechanics can also help ensure that the machine is properly maintained and tuned to avoid future track problems.
Conclusion
Track problems on the Caterpillar 955K crawler loader are a common issue but can often be resolved through regular maintenance and timely repairs. By staying on top of track tension, wear, and undercarriage component health, operators can avoid downtime and extend the life of their equipment. If the issues persist despite proper care, professional help should be sought to address more complex mechanical concerns.