Third, check the four area, the first observation of the driving wheel, guide wheel, supporting wheels, support wheels and track whether there is wear. Second, check the chain is not original, the chain on top of the flag. If this flag and machine information corresponding to explain the chain is the original, if not match used excavators forum prove the chain is replaced, the machine may be worn more serious, so be careful to buy the last two travel motors also check whether during walking speed is the same as the supply of second-hand excavators, fast and slow, if it proves that there is a problem, the wheel tracks and each work also requires careful look at the car look lower row of support wheels support is badly worn, because the maintenance costs are very high chassis. Launch engine cover open launch machine cover and check the exhaust pipe is not a trace of smoke. You can pull out the dipstick and check if there is smoke. Smoke too much to replace piston rings usually needs to clarify, and perhaps would not be long before launch machine overhaul. Check the air filter equipment and all the pipes and hose clamps. Just a bit of dust is enough to ruin your entire launch machine. Pay attention to the accumulation of dust or dirt terminal, the same should check to ensure that the fan belt tensioner state is used excavators prices, check the radiator to ensure its clean, ignoring the cooling system and the air intake system is perhaps the formation launch machine to overheat, shorten the life span of the machine. The inspection also included fundamental Check the radiator fluid and initiate oil, the degree of corrosion around the battery check, and checking initiate machine has no significant leakage. Supply used excavators, used excavators Kim Ho (certified), used excavators 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.