It is currently a senior industry insiders used excavators mall know: many so-called pure import second-hand excavator excavator was originally quality third-produced in Taiwan or Indonesia, first-class quality in Japan is Japan's second mobile phone also present Township produced excavator to their quality applied to the second car will be exported to the UK the United States and other developed countries. Several major shopping malls sold second-hand excavator foundation are not purely imported second-hand excavators, changed hands more times higher than twice Hubei used excavators car, and changed hands more times the machine appears to confirm this shortcoming more times. You have the money to buy the so-called pure imported second-hand Japanese original is not produced in the country digging machines, are other countries in the joint venture vehicle OEM that quality can think of. When used excavators working pressure was significantly higher than 11MPa, should remove the vibration motor, the axial clearance check bearing vibration. The shaft vibration in an axial direction to push the subject, there should be 1 ~ 2mm axial runout; then check the radial vibration bearing clearance radial force is applied Hubei Used excavator vehicle pry bar to the eccentric shaft, if obviously felt the blow Momentum Hubei used excavators car shall exchange bearings; last check free movement of shaft vibration condition Hubei used excavators car, to the vibration axis screw shaft mounted a hex head bolt with a socket wrench and turn the bolt clockwise 1900C, then Loosen the wrench. If the vibration swing freely at times, feel significant resistance, then want to change the bearing. Used excavator factory, Hubei used excavators, used excavators Kim Ho Jin Hao from Shanghai Used Construction Machinery Co., Ltd. Shanghai Jin Hao Used Construction Machinery Co. (www.jinhaosh.cn) strong, credible, in Shanghai Minhang District of mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead jinhao used excavators into the brilliant and you work for a better future!