If the vibration circuit used excavators starting pressure is low, you should remove the high pressure hose on the pump vibration, sealed with a plug tubing interface, 60MPa pressure gauge connected to the vibration of the pump high-pressure port, engine throttle lever to stop quenching position . Shanxi Diesel Engine rotation with the acquisition of second-hand excavator starter motor, if the pressure is less than 10MPa replace the pump, if the pressure of 10MPa, check start control valve. Check the start control valve when the acquisition of Shanxi used excavators, should release the wire connector screws. If the vibration switch is turned on, no electrical contact points on the socket, then look for an electrical system failure and battery voltage is sufficient. Remove the seat, loosen the nut on the solenoid used excavators Shanxi acquisition, together with wires and sockets be removed, then the 12V DC socket with a screwdriver to test the magnetic field is established, the absence of a magnetic field, the coil should be replaced ; there is a magnetic field, then change the vibration valve. At present, a number of construction machinery parts companies are moving rapidly growing part of the company now has developed sophisticated skills gearbox, drive axle and hydraulic valves and other commodities, but also part of the domestic construction machinery manufacturers began to establish their own financing The fittings factory, rely on its own strength along with strong push fittings professional conduct. It is worth noting that in early 2009 the State Department to review with manufacturing restructuring plan after the revival, also for the first time supporting parts for construction machinery demand is proposed to carry out plans and policy support, some foreign hydraulic parts company numerous joint venture plant in the country, This gives the company narrow the gap between domestic fittings occupational supply advanced level of outstanding channel spacing. 90 used excavators, used excavators (online consultation), 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.