1. In order to prevent the hook from premature wear and tear, it is strictly prohibited to overload lifting during use;
2. In the process of daily inspection, pay attention to the opening of the hook and the wear of the dangerous section. Once cracks are found, replace them firmly and do not use them after repair welding;
3. Regularly annealing the hook of gantry crane;
4. Wipe the main hook clean after each use to reduce residue corrosion;
5. Regularly lubricate the pulley, rotating part and other parts with grease fittings of the hook;
6. Check all bolts and screws to ensure that all cotter pins are complete and the opening is open;
7. Check whether the groove and rim of the pulley are worn evenly, whether the steel wire rope matches the groove, and whether the pulley is loose or shaken;
8. Ensure that the rotating part of the hook rotates freely, and the clearance cannot be too large. If it is difficult to rotate or feels stuck, you need to check whether the bearing and shaft sleeve are damaged or the lubrication is insufficient;
9. Check the overload damage of the main hook of the gantry crane;
10. Check the side plate of the gantry crane hook for elongation, hole diameter elongation, bolt bending or elongation, cracks, etc;
11. Check the anti decoupling device of the gantry crane.
