Maintenance of excavator chassis（2）

2. Maintenance of carrier roller
One of the crucial parts of an excavator's undercarriage is the carrier sprocket, which can be found above the X frame. This component requires constant lubrication with oil, and any leakage must be addressed immediately. To ensure the machine's optimal performance, a new carrier sprocket must be installed if the old one is damaged.

 

To maintain the cleanliness and lubrication of the carrier roller, it is important to ensure that the inclined platform of the X-frame remains free from excessive soil and gravel accumulation, which can hinder its rotation. Regularly cleaning and preventing the buildup of debris will help the carrier roller rotate smoothly and efficiently.

 

Attention: The carrier roller plays a crucial role in ensuring that the track maintains linear motion. However, in the event that the carrier roller is damaged, it can result in the track not being able to keep a straight line. Therefore, it is imperative to ensure that the carrier roller is functioning optimally to avoid any potential issues with the track's straight-line motion.

 

3. Idler maintenance
To prevent any unusual wear on the chain rail, it is essential to have the guide wheel positioned in front while operating and walking. By doing so, the tension spring can effectively absorb the impact caused by the road surface during operation, thereby reducing wear and tear.

 

4. Drive wheel maintenance
Regularly inspecting the drive wheels is essential when using them to ensure there are no surface cracks or significant damage. It is also important to utilize the walking motor guard to provide protection for the motor. Additionally, remember to periodically open the guard and clean the dirt inside to prevent corrosion of the oil pipe joint and avoid any potential harm to the drive wheel.

 

5. Track maintenance
There are two types of track shoes available for different working conditions: standard plates and extended plates. However, one common issue they both face is the accumulation of crushed stones in the gap between the plates while walking. These trapped stones can create pressure on the plates, causing the track shoes to bend and deform when they come into contact with the ground. Moreover, prolonged walking can lead to cracks at the bolt fixing point of the track shoes. It is important to address these issues to maintain the functionality and durability of the track shoes.

 

It is crucial to adjust the track tension based on the construction road conditions. Over-tightening can result in accelerated wear of chain rail links, gear rings, and idlers, while loose tension can cause the tracks to dislodge. Therefore, it is important to maintain the optimal tension for the smooth and efficient operation of the equipment. Make sure to check the tension regularly to ensure its accurate and safe operation on different terrains.