Employees involved in crane lifting operations, including drivers, lifting machinery operators, signal controllers, and welders, must be trained, tested, qualified, and medically confirmed.
2. Prior to crane operations, a thorough site investigation is required. A special construction plan should be formulated based on the project characteristics and working environment, approved by the technical responsible person of the company. The plan includes site environment and measures, project overview, and various protective measures during construction. It also covers crane bucket design calculations, anchor design, wire rope and rigging selection, ground bearing capacity and road requirements, as well as a layout of component stacking positions and protective measures during the lifting process.
3. Upon arrival at the site, cranes should undergo inspection and acceptance. Cranes reassembled on-site must operate in accordance with regulations, including static and dynamic load tests, as well as sensitivity and reliability tests of various safety devices. After assembly according to the plan, a crane inspection should be conducted to confirm compliance before use.
4. In addition to regular scheduled maintenance, the car-type crane undergoes annual operational tests, including rated load and overload tests. These tests check the mechanical performance, structural deformation, and load capacity. If the crane does not meet the specified requirements, its use should be reduced.
Before using lifting equipment, it should be inspected and approved according to the design requirements of the construction plan.
6. Inspection of the overhead crane's operational pathways is required. If the ground does not meet the required load-bearing capacity, measures such as laying subgrade boxes should be taken.
7. All protective measures, materials, scaffold installation, and preparation of the danger zone perimeter for bridge cranes should comply with the plan requirements.