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To ensure the normal and safe use of the jib crane-how to maintain the hook

The hook is an important part of the Jib crane, and it is also a very easy to wear part. Therefore, the safety inspection and maintenance should be carried out frequently during the use process to ensure the normal and safe use of the cantilever crane.
Maintenance and maintenance methods for the hook of the cantilever crane:
1. It should be ensured that the surface of the hook should be smooth and free of defects such as cracks, sharp corners, burrs, and peeling;
2. There shall be no defects such as cracks, white spots and inclusions that affect its safe use inside the hook;
3. Welding repair is not allowed for the defects on the crane parts hook;
4. The abrasion of the dangerous section shall not reach 10% of the original size;
5. The opening degree should meet the requirements of 5.2 in GB10051;
6. The torsional deformation of the crane parts hook, that is, the torsion angle of the hook body shall not exceed 10.
7. The dangerous section or the hook handle of the hook must not be plastically deformed;
8. The thread of the hook must not be corroded. Cantilever crane, balance crane, lift freight elevator;