The second generation excavator: With the widespread use of hydraulic technology, the excavator has been applied more scientific gear, Gansu hand small excavator, 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. Prevent component volumetric efficiency drops to abnormal wear and normal wear and tear, should pay attention to. The former may take place within a very short time, a private second-hand small excavator, check the oil through quality and binding function of the quality of the system (such as the actuator operation is normal, the rate of decline, etc.) to judge; the latter should follow certain rules should be a comprehensive study, to take timely measures. Used Guiyang small excavators | used excavators Kim Ho | Buy Used by small excavator Used Construction Machinery Co., Ltd. Shanghai Jin Hao. Used Guiyang small excavators | used excavators Kim Ho | Buy Used small excavator is Shanghai Jin Hao Used Construction Machinery Co. (www.jinhaosh.cn) this year introduced a new upgrade, the above picture is for reference only, please call this page or image Contact phone, for the latest information, contact: Mr. Chairman.