How to choose the right tonnage used digging machine: 1, if your lease is primarily aimed at large-scale earthwork engineering, then recommend to buy more than 30 tons of digging machines, hand digging machine price image, this type of mechanical bucket capacity large, loading Fang, rejection and relatively fast. 2, if your lease is primarily aimed at construction sites, road construction, then recommend to buy 30 tons less than 20 tons of digging machines, this type of mechanical bucket capacity is moderate, the smaller the body, to facilitate the transition, but also strong adaptability, Regardless of the size of earthwork are capable. 3, if your lease mainly for municipal construction, urban construction, then used digging machine price lists, recommended the purchase of 10 tons of the following levels of digging machines, hand digging machine price how to count, these cars with low fuel consumption, used digging machine prices, Body small, convenient transportation. If you take the blue smoke of the engine when accelerating at work, suddenly encountered the load increases, the engine throttle increased, the engine smoke a lot of blue smoke, may be a preliminary judge for the engine cylinder, piston and cylinder seal gap is too large a. This phenomenon is due to the engine throttle in the operation, after the oil sump, through a large gap between the cylinder and the piston or piston rings, fleeing into the cylinder and participate in the combustion, a large amount of blue smoke. This situation requires the dismantling of the engine, and then determine specifically the oil as the piston and the cylinder gap is too big reason, or due to piston ring counterparts of the reasons which led the channeling problem. Used excavator price | Kim Ho used excavators | Used excavator large price offered by Shanghai Used Construction Machinery Co., Ltd. Jin Hao. Used excavator price | Kim Ho used excavators | Large Used excavator price, 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 or pictures on this page contact telephone number, to obtain the latest information, contact: Mr. Chairman.