1. Clean the site where the hook group is replaced, make it open, stop the bridge crane above the site, completely land the hook group on the ground, and fix
1. Clean the site where the hook group is replaced, make it open, stop the bridge crane above the site, completely land the hook group on the ground, and fix the gasket of the hook group with fallen wood.
2. Use a forklift to transport the new hook group to the replacement site, place it side by side with the old hook group, and then fix it with a wooden pad.
3. Use the wire rope of hook group in sequence with wood square and iron wire.
4. The gas welding machine cuts off the wire rope on the old hook group from the first wire rope fixed on the wood square, pulls out the cut wire rope head, passes through the pulley piece of the new hook group in the same direction and position according to the direction and position of the pulley piece of the old hook group, and then the gas welding machine welds the passed new pulley piece to complete the replacement.