How to maintain the excavator undercarriage parts?

How to maintain the excavator undercarriage parts? The correct maintenance method of the four-wheel belt
The excavator rollers leak oil, the supporting sprockets are broken, the tightness of the crawler is inconsistent, and it is easy to deviate. These are all related to the four-wheel area of ​​the excavator.

The four-wheel area is directly related to the working performance and walking performance of the excavator. In order for the excavator to walk and move fast, correct maintenance and maintenance are the key. I am here to give some small suggestions about the maintenance methods related to the four-wheeled belt, hoping to bring help to users.

1. Track Roller
During the work, try to avoid the rollers being immersed in muddy water for a long time. After the work is completed every day, the unilateral crawler should be supported, and the traveling motor should be driven to shake off the dirt, gravel and other debris on the crawler. In winter construction, the roller must be kept dry, because there is a floating seal between the outer wheel of the roller and the shaft. If there is water, it will form ice at night. When the excavator is moved the next day, the seal and the ice will be damaged. Scratches cause oil leakage. The damage of the rollers will cause many failures, such as walking deviation, walking weakness and so on.

2,Carrier Roller
The carrier wheel is located above the X frame, and its function is to maintain the linear motion of the chain rail. If the carrier wheel is damaged, the track chain rail will not be able to maintain a straight line. The lubricating oil is injected into the supporting sprocket at one time. If there is oil leakage, it can only be replaced with a new one. During the work, try to avoid the supporting roller being immersed in muddy water for a long time. Too much dirt and gravel build up hindering the rotation of the idler rollers.

3. Idler
The guide wheel is located in the front of the X frame, which consists of the guide wheel and the tension spring installed inside the X frame. In the process of operation and walking, keep the guide wheel in front, which can avoid abnormal wear of the chain rail, and the tensioning spring can also absorb the impact brought by the road surface during work and reduce wear and tear.

4)Sprocket
The driving wheel is located at the rear of the X frame, because it is directly fixed on the X frame and has no shock absorption function. If the driving wheel travels in the front, it will not only cause abnormal wear on the driving ring gear and chain rail, but also adversely affect the X frame. The X frame may have problems such as early cracking. The travel motor guard plate can protect the motor. At the same time, some soil and gravel will be introduced into the internal space, which will wear the oil pipe of the travel motor. The moisture in the soil will corrode the joints of the oil pipe, so the guard plate should be opened regularly. Clean up the dirt inside.

5. Crawler or track chain
The crawler is mainly composed of crawler shoe and chain link, and the crawler shoe is divided into standard plate and extension plate. Standard plates are used for earthwork conditions, and extension plates are used for wet conditions.
The wear on the track shoes is the most serious in the mine. When walking, the gravel will sometimes get stuck in the gap between the two shoes. When it comes into contact with the ground, the two shoes will be squeezed, and the track shoes will easily bend. Deformation and long-term walking will also cause cracking problems at the bolts of the track shoes.
The chain link is in contact with the driving ring gear and is driven by the ring gear to rotate. Excessive tension of the track will cause early wear of the chain link, ring gear and idler pulley.
Therefore, according to different construction road conditions, it is necessary to adjust the tension of the crawler.