Mini Excavator Track Maintenance Tips

A mini excavator is a versatile machine, designed to operate across various terrains. Proper track maintenance is essential for ensuring long-term performance. Here are some key guidelines to help you determine when to replace the tracks and how to maintain them effectively:

1. When to Replace Tracks

Tracks should be replaced when they show visible cracks, or when the lugs are worn down. The type of terrain you are working on can influence the track choice. Par exemple, in loose soil, tracks with higher lugs offer better grip, while smooth tires are recommended for work on grass to prevent surface damage.

2. Inspecting the Sprockets

During track replacement, it’s crucial to inspect the sprockets for wear. Worn sprocket teeth can lead to track slippage. Donc, we recommend high quality sprocket like EX55 sprocket for Hitachi to reduce maintenance downtime. If necessary, replace the sprockets and use new bolts to ensure a secure installation. Additionally, proper track tension is vital—this should be adjusted according to the surface type. Hard surfaces require more tension than softer ones like sand.

3. Correct Track Tension

Track tension varies depending on the surface. For hard, flat terrain, higher tension is needed, while for softer surfaces like loose sand, less tension is required. Ensuring the correct tension is crucial, as frequent adjustments are not feasible. Set the track tension according to the surface you most commonly work on for optimal performance.

4. Hydraulic Oil Maintenance

The hydraulic motors that drive the tracks operate in an oil bath, which should be changed every 500 hours of use. To do this, use the drain plugs on the sprocket cover to drain the oil and replace it. Be sure to follow proper disposal instructions for used oil.

5. Daily Maintenance Checks

Daily inspections of the undercarriage are critical. Hard objects like rocks and debris can cause damage to the tracks and undercarriage components. Be sure to check for sticks, stones, or metal pieces in the running gear. If there’s significant loose soil buildup, use the boom and dozer blade to lift the undercarriage off the ground, and briefly run the tracks to clear debris and soil.

6. Positioning the Tracks

To position the track correctly, start by aligning the sprocket teeth with the chain grips on the track. Place the track next to the front wheel, then gently lower the machine to position the track around the wheel. Use a grease gun to apply grease to the grease tensioner, which will push the cylinder out and adjust the track tension. As a professional manufacturer of undercarriage parts, we also offer a range of track chains, such as E320 track chain assy, to help you resolve urgent situations quickly.

By following these guidelines, you can ensure that your mini excavator’s tracks remain in optimal condition for a longer service life. For more detailed information or assistance, please contact us for expert guidance.