Tower cranes should be inspected, maintained and maintained frequently. The transmission parts should have sufficient lubricating oil. The wearing parts must be inspected, repaired or replaced frequently. Mechanical bolts, especially those that are frequently vibrated, such as tower connecting bolts, should be carried out. Check for looseness and if it is loose, even if it is tightened or replaced.
1 mechanical equipment maintenance and maintenance
2 The brakes of each mechanism should be checked frequently and the gap between the brake shoes and the brake wheel should be adjusted to ensure flexibility and reliability. On the friction surface, there should be no dirt, and the dirt must be washed away with gasoline or thinner.
3 Lubrication and hydraulic oil of various parts such as gearbox, gearbox and external gear are in accordance with the requirements in the lubrication table.
4 Pay attention to check whether there is broken wire or loose strands in each wire rope. If it exceeds the relevant regulations, it must be replaced immediately. The maintenance of steel wire ropes shall be strictly in accordance with the provisions of GB5144-85.
5 All open gear drives must have a protective cover.
6 Always check the connection of each part, if it is loose, it should be tightened. The tower body connecting bolts should be checked for tightness when the tower body is pressed (the rotating arm can be used to cause the pressure state), and all the connecting shafts must have a split pin and need to be fully opened.
7 Always check whether the operation of each organization is normal, whether there is noise or not. If a fault is found, it must be eliminated in time.
8 When installing, disassembling and adjusting the slewing mechanism, care should be taken to ensure that the center line of the slewing mechanism reducer is parallel to the center line of the gear, and the meshing surface is not less than 70%, and the meshing clearance should be suitable.