The reason why businesses lose money selling used excavators, the main reason for this is that the price of second-hand excavator market has changed, so the market price or second-hand excavator sales price in accordance with 2014 customers appeared unacceptable phenomenon, because the market is not Good reason, the market for used digging machine vendors will be forced to choose to cut prices to sell. Secondary market to buy a used excavator digging machine, after all, is used, Shanghai second-hand excavator, in the future use of which is certainly bound to be some glitches, but as long as know how to determine fault and repair or no problem, the following small series for the majority of users used excavators recommend some blue smoke second-hand digging machine fault diagnosis and repair methods, we want to help! "If you take the blue smoke to start the engine to start the engine in the cold state at the time appeared" cold state of blue smoke phenomenon, but with the growth of the engine operating time, the temperature rises, Shanghai second-hand excavator business direct marketing, take the blue smoke phenomenon gradually disappeared, it is determined that the cold burning oil. This is usually due to the valve seal aging, resulting in the sealing effect is reduced, Shanghai second-hand excavator manufacturers, so the oil valve seals into and through the cylinder combustion to produce blue smoke, the previously mentioned "under the drain." As the engine working hours increase, Shanghai second-hand excavator market, the engine temperature rises, the thermal expansion valve, the valve seal between the existing gap eliminated, take the blue smoke disappears. Shanghai second-hand excavator business, Kim Ho used excavators, used excavators Shanghai 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.