1. The weight of the lifting material shall not exceed the limit working load of the spreader. Before use, the spreader shall be visually inspected and the ultimate working load of the spreader shall be checked according to the lifting load of the spreader. It shall meet the requirements before use. The same is true.

2. Spreader does not allow the crane or hanging material between the main body and the hanging object is also covered by sling and spreader collectively. Then in the lifting crane when the sling should pay attention to what matters?

(Self-repair or re-processing (welding, heating, heat treatment, surface chemical method of treatment), such as the need for the above treatment, should be returned to the original manufacturer or under the guidance of the original manufacturers such as chain sling and so on.

3. Lifting heavy objects, the weight below the station is strictly prohibited, such as harness combination spreader, wire rope combination spreader.