Bulldozers play a vital role in various engineering operations, and the bucket is a key component of the bulldozer that directly contacts the working object, so its maintenance work cannot be ignored.
After each operation, the dirt, sand and other attachments on the bucket should be cleaned in time. If these attachments are accumulated for a long time, they will not only increase the weight of the bucket and affect the working efficiency of the bulldozer, but also cause wear on the bucket surface. You can use tools such as high-pressure water guns or shovels to clean them. Be careful not to scratch the bucket surface when cleaning. In some second-hand equipment dealers, when they purchase second-hand bulldozers, they will focus on checking the cleanliness of the bucket. Because the cleanliness of the bucket reflects the previous use environment and maintenance habits of the bulldozer to a certain extent. For example, some well-known second-hand engineering equipment dealers, their technicians will evaluate the cleanliness of the bucket. If it is found that there are attachments on the bucket that are difficult to clean, it may mean that the previous working environment of the equipment was relatively poor, and the relevant situation will be informed to the customer in detail in the subsequent sales.
Regularly check the appearance of the bucket to check whether there are obvious cracks, deformation or wear. Focus on checking the blade part of the bucket, because this is the part that is most prone to wear during operation. If the blade is found to be severely worn, it should be repaired or replaced in time to ensure the digging and bulldozing effect of the bucket. For second-hand bulldozers, second-hand dealers will carefully check the appearance of the bucket before selling the equipment. They will measure the degree of wear of the blade and compare it with the standard value. If the blade wear exceeds a certain limit, they may repair the blade, or explain the situation to the customer at the time of sale and provide corresponding maintenance suggestions.
Lubricating the various movable joints of the bucket is an important part of maintenance. For example, regularly applying an appropriate amount of grease to the pin shaft where the bucket is connected to the bulldozer can reduce friction, improve the flexibility of the bucket, and extend the service life of the components. Generally speaking, lubrication is required every 50-100 hours of work, depending on the operating environment and frequency of use. Second-hand dealers will also pay special attention to the lubrication of the bucket when preparing second-hand bulldozers. They will check whether the grease in each joint is sufficient. If it is found that the lubrication is insufficient, grease will be added in time to ensure that the bucket can operate normally after it is sold to the customer.
Carefully check the welding parts on the bucket, especially after high-intensity operation or collision. Check whether there are signs of cracking in the welding parts. If cracks are found in the welding parts, they should be repaired in time. When repairing welding, appropriate welding materials and processes should be selected to ensure the welding quality. When inspecting the second-hand bulldozer bucket, the technicians of the second-hand equipment dealer will focus on the welding parts. If potential problems are found in the welding parts, they will repair them or ask professional welding masters to handle them to ensure the structural strength of the bucket.
In addition to the cutting edge, other parts of the bucket may also be worn. For parts with slight wear, surfacing can be used to repair them to increase their thickness and wear resistance. During the surfacing process, the welding current and welding speed should be controlled to ensure the uniform quality of the surfacing layer. If the wear is severe, the corresponding parts or the entire bucket may need to be replaced. In the second-hand market, some second-hand dealers will deal with it accordingly according to the wear of the bucket. For buckets with less wear, they will perform surfacing repairs and polish the repaired parts to make the surface smooth. For buckets with severe wear, they will consider replacing the buckets to improve the overall quality of the second-hand bulldozers.
Because bulldozers often operate in harsh environments, buckets are susceptible to corrosion. Buckets can be regularly treated with anti-corrosion treatments, such as spraying anti-rust paint. Before spraying anti-rust paint, make sure the bucket surface is clean and dry, which can improve the adhesion of anti-rust paint. Depending on the corrosiveness of the operating environment, anti-corrosion treatment is generally performed every 1-2 years. Second-hand dealers will also pay attention to the anti-corrosion work of buckets when performing long-term maintenance on second-hand bulldozers. They will conduct a comprehensive inspection of the buckets. If the anti-rust paint on the surface of the bucket is found to be peeling or damaged, they will promptly repaint it to extend the service life of the bucket.
After long-term use, some key parts of the bucket, such as pins and bushings, may be severely worn or damaged. When the wear of these parts exceeds the specified limit, they should be replaced in time. For example, when the pin diameter wears more than 5-10% of the original diameter, a new pin needs to be replaced. When preparing a used bulldozer, second-hand dealers will check the various parts of the bucket and replace the severely worn parts in time to ensure that the used bulldozer can operate normally after the sale and reduce the customer's worries.
In short, whether it is a new bulldozer or a used bulldozer, bucket maintenance is crucial. By doing these maintenance work well, the service life of the bucket can be extended and the operating efficiency of the bulldozer can be improved. Second-hand dealers also play an important role in this. They provide customers with reliable quality second-hand bulldozers through professional inspection, repair and maintenance.