How does the operator determine if the correct load chart is being used?

Matching serial numbers to the crane's load chart is the correct method for ensuring that the appropriate load chart is being used. Each mobile crane is constructed with specific design parameters, and the load chart corresponds with those specific parameters, which can vary between different models and even among the same model under different configurations.

The serial number is unique to each crane and serves as a reference point for the manufacturer to provide the correct specifications, including the load chart that applies to that specific machine. This ensures that the operator is working within the designed limits and safety guidelines for that particular crane, which is critical for safe operation.

Other methods, such as comparing the weight of the load, could lead to confusion or errors since it does not guarantee that the crane can safely handle different loads at various configurations. Using trial and error can also be hazardous and contrary to safe operating practices, as it increases the risk of overloading the crane. Relying solely on load radius does not take into account the overall specifications and limitations of the specific crane, which vary widely depending on many factors.