Lifting beam (including the load beam and connecting rigging) is dedicated to be hanging objects lifting spreader beams. According to People's Republic of China Machinery Industry Standard heavy machinery and general technical conditions JB / T5000.1-5000.15-1998, Baoding cable special forces spreader beams lifting implementation is hanging objects, their lifting and installation process is simple and reasonable structure, flexible operation easy to use. Main bearing lifting beam is part of the main bearing combination, it's a safety factor 4, upper part of the rings can be directly connected with the day coupler, driving after connecting hanging beam, were lifting work. Lifting beam using the methods and precautions mobile crane, crane hook and make rings connected to the lifting beam, after starting to rise to the correct height, to see whether the level of crane beams, hanging chain kinks. Then move the main beam, to be hanging above the object, with a connection rigging and hanging objects connected, then slowly lifting crane. Hanging balance test: After the lifting crane, the main 粱平衡 should be less than 1 °, with the naked eye of the load beam is in equilibrium, when fully at equilibrium, can be lifted. Load test crane lifting a load test process is the final preparation process as a whole, the last part of the operation of the whole process should be slow to lift the load, when just off the ground, stop the increase, the overall observed the forces, and then slowly relax the load, if not abnormal before the normal lifting. Precautions before lifting beam lifting crane girder beams using a first beam of visual anomalies without deformation, cracks, welds, welding and other open. Try hanging process route to meet the operational and environmental conditions of the load, to determine the position of lifting and put up, not all of the impact of lifting lifting, lifting beam with respect to the main rigging (T8 high-strength alloy chain), can not be changed when using bit, knotting. Try hanging process, the beam load abnormal noise, distortion, cracks, stop immediately try hanging. After a successful trial hanging to be lifting, lifting, lifting process so that the person concerned must understand identification, allowing the operator to see the Communications. When lifting loads, overloading is not allowed to use, the beam must be in a steady state, the body can not produce the swing beam to prevent the beam out of balance, causing accidents. Do not stand on the load below prohibit artificial help load.