Large Kobelco Excavators price | Kobelco Excavators | Used Excavators recovered by Kim Ho Jin Hao Shanghai Used Construction Machinery Co., Ltd .. Shanghai Jin Hao Used Construction Machinery Co., Ltd. (www.jinhaosh.cn) is specialized in the "Komatsu excavators, Used Hitachi excavator, used Caterpillar excavators, used Kobelco mining" of the enterprise, the company adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. seats. Excavators at the start of work, but there will be side tracked suddenly can not move and digging arm fatigue, is the reason? The reason is that the majority of hydraulic oil is not clean, tiny dirt clogging the valve piston in the middle of a small orifice . You can remove the safety valve to clean, remove orifice clogging it. The inspection orifice is not clogged Kobelco Excavators market, pressure relief valve why do they still tune up? Most of this situation is due to the conical valve seat closed lax Kobelco Excavators price, so that the oil chamber C pressure build up. Appearance and job conditions used mini digger with other general-purpose small Kobelco excavator is very similar to the price of used excavators, mini-excavators used in special environments more, such as burying engineering, pipe laying, trenching operations, etc. time they used each year is relatively short. Mini excavators first appeared in the mid-1980s, today's equipment and the development of a number of older models do not have the features. Small rubber crawler excavators with steel tracks on a large machine on a different, it applies on the lawn and driveway.