Guide to Adjusting Track Tension of Doosan Excavator: How to Avoid Walking Resistance and Fuel Consumption Increase

Doosan excavators are widely used in the field of engineering construction due to their excellent performance and reliability. As an important walking component of excavators, the tension of the track has a significant impact on the walking resistance, fuel consumption, and service life of the equipment. Appropriate track tension can ensure smooth equipment movement, reduce energy consumption, and extend the service life of tracks and related components. This article will provide a detailed analysis of the adjustment method for the tension of the track of the Doosan excavator, helping you avoid the problems of increased walking resistance and fuel consumption.

1、 The importance of track tension

Track tension refers to the degree of tightness between the track and the drive wheel, guide wheel, and support wheel. Inappropriate tension can lead to a series of problems:

Tight tension: It will increase walking resistance, lead to increased fuel consumption, and accelerate wear on the tracks, drive wheels, and guide wheels.

Overly loose tension: can cause the tracks to fall off or bounce, affecting the stability of equipment operation and potentially damaging the walking mechanism.

Therefore, maintaining appropriate track tension is crucial for the efficient operation of excavators.

2、 Adjustment method for track tension of Doosan excavator

Doosan excavators typically use hydraulic tensioning mechanisms to adjust track tension. The specific adjustment steps are as follows:

Safety preparation:

Park the excavator on a flat and solid ground.

Stop the engine, pull up the handbrake, and ensure the stability of the excavator.

Release hydraulic system pressure.

Find the tensioning mechanism:

The tensioning mechanism is usually located above or below the track frame, consisting of a tensioning cylinder, an adjuster, and a locking device.

Refer to the user manual of the Doosan excavator to find the specific position of the tensioning mechanism.

Release the locking device:

Use appropriate tools to loosen the locking device of the tensioning mechanism, such as bolts or pins.

Attention: Some models may require the use of specialized tools for their locking devices.

Adjust tension:

Tensioning: If the track is too loose, you can use a tool to rotate the adjuster clockwise to extend the tensioning cylinder and tighten the track.

Relaxation: If the track is too tight, you can use a tool to rotate the adjuster counterclockwise to retract the tensioning cylinder, thereby relaxing the track.

Attention: When adjusting, it should be done slowly to avoid adjusting too much at once.

Check the tension:

After the adjustment is completed, it is necessary to check whether the tension of the track meets the requirements.

Normally, you can press the middle part of the track chain with your fingers, and the sinking amount is generally around 20-50mm (please refer to the user manual of the Doosan excavator for specific values).

You can also refer to the gap between the track and the guide or drive wheels. A gap that is too small or too large indicates an inappropriate tension.

Locking device:

After confirming the appropriate tension, re tighten the locking device to prevent any changes in tension.

3、 Daily inspection and maintenance of track tension

Regular inspection: It is recommended to check the tension of the track before each operation or at regular intervals, especially after a new machine or replacement of the track.

Observe wear condition: Regularly check the wear condition of the tracks, drive wheels, and guide wheels. If the wear is severe, it should be replaced in a timely manner.

Avoid obstacles: When working, try to avoid driving on sharp stones or obstacles to prevent damage to the tracks.

Maintain cleanliness: Regularly clean the soil and debris on the tracks to prevent increased walking resistance.

summarize

Appropriate track tension is an important factor in ensuring the efficient operation of Doosan excavators. By mastering the correct adjustment methods and conducting regular inspections and maintenance, the problems of walking resistance and fuel consumption increase can be effectively avoided, and the service life of the tracks and related components can be extended. I hope this article can provide you with valuable references to help you better maintain your Doosan excavator. Please refer to the user manual of the Doosan excavator and operate according to the specific model and maintenance requirements.