Preparation before crane operation

1. All aspects must be prepared before lifting operations to prevent accidents. The preparation of the work is: preparing and checking the lifting utensils, including wire ropes, shackles, clamps, hanging baskets, etc.; preparing auxiliary tools, including skids, masts, wire hooks, etc.; determining and cleaning the place of falling, requiring leveling, Spacious.

2. The contact signal is the bridge between the driver and the lorry. Many accidents are caused by mistakes in information exchange. Therefore, whether it is a ground command signal or a crane warning signal, it should be in accordance with the prescribed standards. In particular, the crane driver can only operate after the command signal, the hanging state, the running channel, and the landing space are confirmed.

3. Before binding the components or equipment, determine the appropriate lashing point according to the shape and center of gravity; secondly, the bundled weight should be considered to have a certain angle between the rope and the horizontal plane during lifting, and the angle is 45° under the force. should. Then, when the object with the corners is tied, it should be covered with wood, tires, sacks, etc., so as to avoid damage to the wire rope. Then it is necessary to consider whether the lifting of the weight is convenient. When the heavy object is put in place, it will not press or crush the sling; finally, when lifting the various parts, take the appropriate fixture to ensure the lifting. smooth.

During the lifting process of the crane, the area endangered by the impact, sway, and landing of the hoist is called a dangerous area. During the operation, the workers are often in the dangerous area. Therefore, selecting a safe location based on the characteristics of the hazardous area under specific conditions is a very important aspect to effectively prevent lifting injuries.