This year Shanghai second-hand excavator sales market trends and previous years has been very different place, used excavators recycling prices, mainly reflected in the purchase of second-hand digging machine selection door, this year significantly higher than the sales of used mini excavator medium-sized excavator popular, some even lower than some medium excavators Used mini excavators, but users still reason to choose mini excavator, used excavators recycling factory, which is obviously not the reason for the price, but the user excavator There are restrictions on the working area of ??large and medium excavators, leading to small and medium-sized excavator excavator higher than the sales phenomenon. Used excavator plunger injection pump test of ridicule, many engineering machinery maintenance personnel do not pay attention to check construction machinery piston stroke margin. The so-called plunger stroke margin, used excavators recycling market, refers to the amount of movement of the plunger by the cam on the camshaft after top dead center supremacy, but also to continue upward. Adjusted supply start time, the reason also check the stroke margin, used excavators recovered, because the plunger stroke margin and plunger sleeve worn related. After the plunger and sleeve wear, the plunger movement to some to start up more oil so that the oil supply start time delayed. When screwing the adjusting bolt to adjust or switch thicker pads, gaskets, the lowest position of the plunger on the move, the plunger stroke margin decreases. Therefore, when the fuel pump engineering machinery maintenance, debugging, first check the travel allowance, to determine whether the fuel pump also allows you to adjust. Used excavator recycling prices | Kim Ho used excavators | used excavators recovered 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.