Of the hydraulic pump control system controlling the hydraulic components are placed corner by adjusting its variable to achieve. According to different forms of control can be divided into power control systems, traffic control systems and combinations of control systems such as three categories. Wherein the power control system exercise and power control, total power control, pressure control and variable cut off power control; flow control system with manual flow control, flow control positive and negative flow control, Sec maximum flow control, load sensing control and electrical flow control; combined control system is a combination of control power control and flow control, the most widely used in the hydraulic control unit.泰安嘉 and Heavy Machinery Co. excavator Precautions in the desert and arid desert regions and arid areas in the construction site, will encounter a lot of difficulties due to dust caused by excessive evaporation and. If you let some of the dust particles through the engine valve into the compression chamber, it will accelerate the piston and cylinder wall wear. There have been many problems 100h engines example was worn in the desert and arid areas, so when engineering machinery working in dusty conditions, pay special attention to the selection and maintenance of air filter, is best to use special desert area The air filter. Sand will be bonded to the open drive mechanism, so that the external gear wear out quickly. In the design of the machine should be closed as much as possible so that the transmission element, in order to reduce wear and extend the life of the transmission system. When the drought, engine cooling water and battery electrolyte evaporates quickly. Thus, during operation should pay attention to fill the cooling water and fill with distilled water to the battery regularly. The best use of air-cooled diesel engine equipped to participate in the construction machinery in arid regions. Also small excavators, engineering machinery construction in the desert because of the sandy soil loose and lead to a reduced ability to drive used mini excavators prices, especially machinery such as wheel loaders, road rollers, and so even with difficult domestic small car trap dug Graders price, it is designed to be appropriate to increase the weight distribution of the drive wheel, or all-wheel drive and low voltage wide-base tires for the drive wheels. The latest technology is compact crawler excavators prices, measures adopted anti - slip in the hydraulic system, fluid flow rate by adjusting the system to provide the best traction conditions, in order to take full advantage of ground tire adhesion.泰安嘉 and Heavy Machinery Co., Ltd. Agricultural small excavators prices | Kerry and Heavy Industries (certified) | Jixi mini excavators by 泰安嘉 and Heavy Machinery Co., Ltd .. Taian Jia and Heavy Machinery Co., Ltd. (www.tajhzg.com/) is Tai'an, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Heavy leader in Kerry and the staff warmly welcome all inquiries negotiations to create Kerry and heavy industry a better future.