A 1997 Shanghai Santana GLI sedan, a total of 122,000 km running, the engine idling, steering booster pump issued a "buzzing" sound, when the steering wheel when the left and right when the abnormal noise aggravate. The car replaced two steering booster pumps in a month, replaced the first steering booster pump with about 20 days of noise, and the second one took only seven days. The same problem occurred again. According to maintenance technicians, they purchase channels formal, this accessory has sold more than one, have not had a similar problem. After demolition of the pump has been replaced, found no abnormal wear and tear. The car parked on a flat road, through a comprehensive visual inspection found that hydraulic lines, pump body and the direction of no oil leakage, the hydraulic oil storage tank between the upper and lower limits, the drive belt is tight and moderate, but the hydraulic oil Black has deterioration (Figure 1). Found through the test, turn the steering wheel left and right, turn normal afterburner, steering steady and flexible in the absence of steering deviation, heavy and floating phenomenon, and the steering back to good. Is it really caused by abnormal wear and tear of the pump noise? According to the owner to replace the new pump, the lack of oil spill has never been found. This pump is only used less than 10 days, should not be caused by wear and tear inside the pump. If the pump pressure valve and the flow valve is not good, will make the pressure is too low, the performance turned heavy; if the pressure is too high, due to excessive pressure around the power cylinder, driving direction deviation occurs automatically; if the steering distribution Poor valve operation or internal leakage, there will be heavy steering; if the steering valve disturbs the distribution will lead to poor steering back to bit; if the distribution of spool and valve sleeve gap with poor, deviation and drift phenomenon will occur. After the above test and analysis, apparently does not meet any of the above situations, it seems that all parts of the steering system work well, but there is no bad wear and tear. So far the repair work in trouble, the only exception found in the overhaul of the hydraulic oil is the presence of deteriorating over-dirty phenomenon. The engine idling, turn the steering wheel several times, until the hydraulic oil temperature rose to normal operating temperature (about 80 ℃), spin off the reservoir cover, hold the middle spring by hand, start the engine idling, observe the oil Face, in addition to the discovery of hydraulic oil dirty, also found that the hydraulic fluid in the flow of bubbles from time to time emerge from the surface. Could it be because of bubbles with hydraulic oil flow into the pump, squeezed in the pump and produce aerodynamic noise? If so, then how is the bubble produced? After in-depth analysis, I believe that the cartridge in the reservoir blockage caused the phenomenon. Why filter plugging will have such a big noise? Dirty hydraulic oil will filter plug, plug the filter will make the pressure on both sides of the filter is too large, it will make the oil in an unstable state. In the case of a change of oil level, the air is easily mixed into the oil inlet pipe (Figure 2) due to the negative value at the inside, which is transmitted to the pump to be compressed to generate aerodynamic noise. Replace a steering booster pump filter, and the steering hydraulic system to thoroughly clean, put on the pure standard hydraulic oil, the test found that failure completely ruled out. In fact, in the Volkswagen series, not only is the filter clogged producing noise, but it also produces aerodynamic noise if the filter is damaged or displaced. This is because the filter cartridge has two functions: one is to filter the sediment and impurities in the system, the other is to eliminate the pulsation when the pressure in the oil return port is too high, so as to prevent air bubbles from being generated so as to make the oil surface calm. Therefore, when the steering booster pump abnormal noise, they should check the filter is clogged, and check the hydraulic oil.
CATSU digging bucket is a type of Excavator Attachment that is used for digging and excavating soil, rocks, and other materials. It is typically made of heavy-duty steel and features sharp teeth or edges on the bottom to help break through tough materials. Digging buckets come in a variety of sizes and shapes to suit different excavation needs and can be attached to a range of different types of excavators.
When it comes to construction and excavation projects, having the right equipment is essential for efficient and effective work. Two commonly used attachments for excavators are digging buckets and sorting buckets. While both serve different purposes, they offer distinct advantages depending on the nature of the job at hand. Excavator Digging Bucket,24 Digging Bucket,600Mm Digging Bucket,Cat Digging Bucket CATSU Hydraulic Machinery Equipment Co.,Ltd , https://www.tiltrotatorcat.com
Advantages of Digging Buckets:
1. Excavation Efficiency: Digging buckets are specifically designed to penetrate the ground quickly and efficiently. They feature sharp teeth or cutting edges that enable them to break through various types of soil, rocks, and debris. This makes them ideal for digging trenches, foundations, or any task that requires substantial earthmoving.
2. Increased Productivity: The design of digging buckets allows for larger volumes of material to be moved at once. This, in turn, helps to increase productivity by reducing the number of passes required to complete a task. With a digging bucket, operators can save time and effort, ultimately accelerating the project timeline.
3. Versatility: Digging buckets come in various sizes and configurations, allowing for versatility in different excavation tasks. They can be equipped with different teeth options or additional features like tilt rotators, enabling operators to adapt to different soil conditions or project requirements.
Advantages of Sorting Buckets:
1. Enhanced Sorting Capabilities: Sorting buckets are specifically designed for separating materials on-site. They typically feature a grid or sieve-like structure that allows smaller particles to fall through while retaining larger ones. This makes them ideal for tasks like sorting rocks, debris, or separating different materials during recycling processes.
2. Cost and Time Savings: By using a Sorting Bucket, operators can eliminate the need for manual sorting or additional equipment, which can save both time and money. The ability to separate materials directly on-site eliminates the need for separate sorting facilities, reducing transportation costs and increasing operational efficiency.
3. Environmental Benefits: Sorting buckets contribute to environmental sustainability by enabling the separation and recycling of materials. By sorting and recycling on-site, construction projects can reduce the amount of waste sent to landfills, minimize the need for new raw materials, and lower the overall carbon footprint.
Conclusion:
While digging buckets excel in excavation efficiency and productivity, sorting buckets offer advantages in material separation, cost savings, and environmental sustainability. The choice between the two attachments depends on the specific requirements of the project and the desired outcomes. By understanding the advantages of each, construction professionals can make informed decisions and optimize their excavation processes.