How to Remove the Tracks on a Kobelco 120 Excavator
In construction sites and quarries, track excavators are essential heavy equipment. The Kobelco 120 excavator is known for its reliable performance and ability to operate in tough environments. However, maintaining and removing the tracks is a technical task that requires careful attention. This article provides a detailed guide on how to remove the tracks on a Kobelco 120 excavator, including step-by-step procedures, common issues, safety considerations, and technical term explanations.
1. Preparations Before Removing the Tracks
Before starting, proper preparation is essential to ensure safety and efficiency:
- Inspect the Excavator: Ensure the machine is on level ground, the engine is off, and the hydraulic system pressure is released to prevent accidents.
- Gather Tools: Essential tools include a hydraulic jack, wrenches, track pin removal tools, wire brushes, and lubricating oil.
- Safety Gear: Operators should wear a helmet, protective gloves, and anti-slip boots to minimize the risk of injury.
2. Step-by-Step Track Removal Process
Removing tracks requires patience and precision:
- Release the Track Tension: Use a hydraulic jack to lift one side of the track. Loosen the bolts on the track tensioner to release tension.
- Remove Track Pins: Use appropriate tools to remove the track chain connecting pins. Keep track of each pin’s position and orientation for reassembly.
- Take Off the Track: Once all pins are removed, carefully remove the track from the sprockets and rollers. Assistance may be needed to prevent the track from falling or getting damaged.
- Inspect Track Components: During removal, check the track chain, track shoes, and rollers for wear or damage. Replace or repair as necessary.
3. Common Problems and Solutions
- Stuck Track Tensioner: If the track tensioner is difficult to release due to lack of maintenance, apply lubricating oil or gently tap with a hammer to loosen it.
- Difficult Track Pin Removal: Pins may be corroded or stuck due to long-term use. Heating the pins slightly or using hydraulic tools can ease removal.
- Damaged Track Components: Severely worn or damaged track chains or shoes should be replaced immediately to prevent operational issues.
4. Technical Terms Explained
- Track Tensioner: Device used to adjust the tension of the track, ensuring proper contact with sprockets and preventing slippage.
- Track Pins: Pins connecting the track links, which can be removed to separate the track chain.
- Track Rollers: Wheels supporting and guiding the track as it moves.
5. Practical Example
At a construction site, a lack of track tensioner maintenance caused excessive track tension, leading to broken track pins. After replacing the damaged parts and performing proper maintenance, the excavator returned to normal operation without further issues.
6. Safety Guidelines
- Work Environment: Choose level, firm ground to prevent the excavator from tipping or the track from falling.
- Proper Tool Use: Always use the correct tools to avoid equipment damage or operator injury.
- Safety Awareness: Operators must strictly follow safety procedures and remain vigilant throughout the process.
7. Conclusion
Track removal is a critical part of maintaining a Kobelco 120 excavator. By following proper procedures and safety measures, the task can be completed efficiently, prolonging the equipment’s life and improving operational productivity. This guide provides practical and valuable instructions for operators and technicians.
