Kobelco SK210LC Track Issues: Troubleshooting and Maintenance

[MikePhua]

The Kobelco SK210LC is a reliable and powerful tracked excavator commonly used in construction, excavation, and heavy lifting applications. Like all heavy equipment, the SK210LC can experience wear and tear, particularly in its track system. Track issues are a common concern for operators, as they can affect both the performance and safety of the machine. This article provides a detailed guide to troubleshooting and maintaining the track system of the Kobelco SK210LC, as well as addressing common problems and solutions.
Understanding the Track System of the Kobelco SK210LC
The Kobelco SK210LC is equipped with a tracked undercarriage that helps distribute the machine's weight evenly and provides better traction in various terrain conditions. The track system consists of several critical components:

1. Tracks: The continuous loop of steel or rubber tracks that provide mobility.
   
2. Track Chains: These are linked together and support the track rollers and sprockets.
   
3. Track Rollers: These support the weight of the machine and allow smooth movement of the tracks.
   
4. Idler Wheels: These guide the tracks and help maintain proper tension.
   
5. Sprockets: These are gear-like components that engage with the track chain to drive the machine.
   

If any part of the track system becomes damaged or worn out, it can lead to problems such as poor traction, uneven wear, or even complete track failure.
Common Track Issues on the Kobelco SK210LC
Here are some of the most common track-related issues reported by Kobelco SK210LC operators:

1. Track Tension Problems: Improper track tension can cause several issues. If the tracks are too tight, they can put excessive strain on the undercarriage, leading to premature wear. On the other hand, if the tracks are too loose, they can slip or become derailed, reducing efficiency and causing damage to the track components.
   
2. Track Wear and Damage: Over time, the tracks on the Kobelco SK210LC may experience wear, especially in tough working conditions. Common issues include worn-out track pads, cracked or broken links, and worn-out sprockets. Track wear can be accelerated by improper tension, rough terrain, or lack of maintenance.
   
3. Track Slipping or Derailing: A slipping or derailed track is a serious problem that can halt operations. This issue is often caused by improper tension, worn track rollers or idler wheels, or damage to the sprockets. If the track slips off the sprockets or becomes dislodged, it can damage the machine and lead to expensive repairs.
   
4. Sprocket and Idler Wear: Sprockets and idler wheels play a critical role in maintaining track alignment and ensuring smooth movement. Worn sprockets or damaged idlers can cause the tracks to become misaligned or slip, resulting in poor performance and increased wear on the other components of the track system.
   
5. Hydraulic Issues Affecting the Track System: In some cases, hydraulic problems can affect the track system, particularly if there is an issue with the hydraulic motor or track drive system. Low hydraulic fluid or faulty pumps can lead to insufficient track power, causing the tracks to slip or fail to engage properly.
   

Troubleshooting Track Issues on the Kobelco SK210LC
If you experience any of the above issues with your Kobelco SK210LC, a thorough troubleshooting process is essential to identify the root cause. Here’s a step-by-step guide:

1. Check Track Tension: First, verify the track tension. The tracks should have enough slack to prevent undue strain but not be so loose that they could slip off the sprockets. To check the track tension, lift the machine off the ground slightly and inspect the track's sag. Refer to the manufacturer’s guidelines for the proper tension and adjust the track tension accordingly.
   
2. Inspect the Tracks for Wear and Damage: Check the tracks for signs of wear, including cracks, missing or damaged track pads, and excessive wear on the links. If you notice any significant wear, the tracks may need to be replaced. Additionally, inspect the sprockets for wear; if the teeth are worn down, it could indicate that the tracks are not properly tensioned or that they are not engaging correctly.
   
3. Inspect the Track Rollers and Idlers: Look for damage or excessive wear on the track rollers and idlers. These components are responsible for guiding and supporting the track. If they are damaged or worn, the tracks may not move properly or may become misaligned. Replace any worn-out rollers or idlers.
   
4. Check for Track Slippage or Derailment: If the track is slipping or derailing, check the track tension and alignment. Inspect the sprockets to see if they are worn or damaged. If the track is still slipping or coming off the sprockets, it may be necessary to replace the sprockets or adjust the track alignment.
   
5. Inspect the Hydraulic System: If you suspect that hydraulic issues are affecting the track system, inspect the hydraulic fluid level and check for leaks. Ensure that the hydraulic motor and pumps are functioning properly. If the track drive system is not receiving sufficient hydraulic power, the machine may not be able to move effectively, causing the tracks to slip.
   

Solutions for Common Track Problems
Here are the potential solutions for the common issues faced by Kobelco SK210LC track systems:

1. Adjust Track Tension: If the tracks are too tight, reduce the tension to prevent excessive wear on the undercarriage. Conversely, if the tracks are too loose, increase the tension to ensure they stay properly engaged with the sprockets. Proper tension is essential for smooth and efficient operation.
   
2. Replace Worn or Damaged Tracks: If the tracks are severely worn or damaged, replacing them may be necessary. Make sure to use high-quality replacement tracks that meet the manufacturer’s specifications for the Kobelco SK210LC.
   
3. Replace Worn Track Rollers and Idlers: If the track rollers or idlers are damaged or excessively worn, replace them. Worn rollers can lead to misalignment, while damaged idlers can cause track derailment. Regularly inspect and replace these components to ensure optimal track performance.
   
4. Replace Worn Sprockets: If the sprockets show signs of wear, such as missing teeth or significant damage, replace them promptly. Worn sprockets can cause track slipping, poor performance, and further damage to the track system.
   
5. Hydraulic System Repairs: If hydraulic problems are causing track issues, address them by replacing the hydraulic fluid, checking for leaks, and ensuring the hydraulic pumps and motors are functioning properly. A malfunctioning hydraulic system can affect track drive power, causing the tracks to slip or not engage correctly.
   

Preventive Maintenance for the Kobelco SK210LC Track System
To avoid track issues in the future, regular preventive maintenance is crucial. Here are some tips for keeping your Kobelco SK210LC track system in top condition:

1. Regular Track Inspections: Frequently inspect the tracks, rollers, idlers, and sprockets for wear or damage. Early detection of wear can prevent costly repairs and downtime.
   
2. Maintain Proper Track Tension: Check the track tension regularly and adjust it according to the manufacturer’s recommendations. Proper tension ensures smooth operation and reduces excessive wear on the track components.
   
3. Lubricate the Track System: Keep the track system lubricated to prevent corrosion and reduce wear on moving parts. Regular lubrication helps maintain the functionality of the rollers and idlers.
   
4. Use Quality Hydraulic Fluid: Always use the recommended hydraulic fluid and replace it at the suggested intervals to prevent contamination and ensure optimal hydraulic performance.
   
5. Avoid Overloading: Avoid overloading the machine, as excessive weight can cause undue strain on the tracks and other components. Follow the manufacturer’s load guidelines to ensure the longevity of the track system.
   

Conclusion
The Kobelco SK210LC is a powerful and efficient excavator, but like all heavy equipment, it requires regular maintenance and attention to the track system. By identifying and addressing common track issues such as tension problems, track wear, and hydraulic malfunctions, you can keep your machine in peak working condition. Regular inspections, adjustments, and timely repairs are key to ensuring that your Kobelco SK210LC continues to perform reliably on the job site.