The second generation excavator: With the widespread use of hydraulic technology, the excavator has been applied more scientific gear, hand digging machine manufacturers, hydraulic excavator instead of mechanical drive technology is a major leap forward. 1950 Germany's first hydraulic excavator was born. Mechanical drive is the second generation of hydraulic excavators. Routine inspections is to ensure that the hydraulic excavator can be an important part of long-term efficient operation, especially for the self-employed, the daily inspection work to do in peacetime can effectively reduce maintenance costs. First, the first two laps around the machinery to check the appearance and presence or absence of abnormal mechanical chassis and slewing ring if there is oil outflow, and then check the brake deceleration device and track bolt fasteners, tighten the tightening, the sale of second-hand digging machine manufacturers, the exchange of timely replacement, and if you need to check the tire wheel excavator whether there are abnormal, businesses used digging machine manufacturers, as well as stability in air pressure. See if there is a large excavator bucket teeth wear, it is understood, will be fighting tooth wear substantial increase in the resistance of the construction process, it would seriously affect the efficiency and increase the degree of wear of equipment components. Used excavator factory recovery, Kim Ho used excavators (certified), second-hand digging machine manufacturers are provided by Shanghai Used Construction Machinery Co., Ltd. Jin Hao. Shanghai Jin Hao Used Construction Machinery Co. (www.jinhaosh.cn) is the Shanghai Minhang District, 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. Kim Ho used excavators in leadership with the staff warmly welcome all inquiries negotiations to create jinhao used excavators better future.