Crane use and maintenance: Note frequently check the oil, hydraulic oil, coolant, brake fluid and fuel oil (water) quality and a 150-ton crane position and how much money, and pay attention to check the tightness of the machine. Inspection found a lack of excessive water Tadano crane 120 tons, should analyze the reasons. While 150 t crane, should strengthen the lubrication point lubrication 150 t crane company, we recommended run-in period, the class must be on the lubrication point lubrication (except for special request). Crane of structure: by lifting the nature points. Mobile cranes, tower cranes, mast crane. According to the structure, the crane can be divided into small light lifting equipment, bridge type (bridge, gantry crane), the arm frame (self-propelled, tower, gantry, rail-style, floating boat-mast cranes), cable type.