Excavators regular maintenance is to restore the performance and prolong its service life and effective way, but in actual operation and maintenance process, large businesses used excavators, as some use and maintenance staff, but there are many wrong practices, it will also affect the Construction Machinery normal use. Today Dulwich used excavator sales company small series and our friends talk about oil drilling machine bogey on maintenance Note the only plus not change. Excavator in use among the general failure is digging machine walking wandering, used excavators businesses, the reason may be assigned to walk seal damage, selling second-hand excavator business, two hydraulic pumps flow sample sizes, while walking motor problems. Quick discharged hydraulic cylinder as a safety relief valve may be closed lax, or serious damage to cylinder seals and so on. So whether it is new or routine maintenance excavator used excavators have to take seriously, in order to prevent the excavator's failure, in the course of daily use requires careful attention to the maintenance of the excavator. Kim Ho used excavators businesses, Jin Hao used excavators, used excavators businessmen from 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.