Tower crane mechanical routine inspection and maintenance is necessary, then, in the examination of the tower crane, we need to pay attention to the following points to be checked. (1) Check the crane structure, with particular attention to have no loose bolts, use a wrench to tighten the bolts above must be kept clean, without dust, debris and corrosion. (2) check each rotation system, and there is no damage to the bearing clearance or bad, or need to adjust the gears, brakes flexibility. (3) Check the ropes and pulleys for wear, solid enough; there is no adverse electrical components. (4) Check the track wheel and rail travel exposure, the clip rail clamp securely enough. (5) Check the lightning protection and grounding is not safe, smooth drainage channel. For more information, please visit AXA lifting equipment http://www.ascrane.net/about.html