How does a crane operator determine if a load is too heavy for a lift?

To determine if a load is too heavy for a lift, consulting the crane's load chart is essential. The load chart provides critical information that specifies the maximum load capacity of the crane for varying configurations, such as boom length, angle, and radius. Each crane has its specific load chart that takes into account the unique design and safety factors, ensuring that the operator has a precise understanding of the maximum loads that the crane can safely lift under different conditions.

Relying solely on visual estimation of load weight may lead to inaccuracies, as many materials can appear lighter or heavier than they actually are. Testing the load on the crane is not a safe or recommended practice, as it could put both the operator and the equipment at risk if the load exceeds capacity. Comparing the load to previous lifts lacks the specificity needed for safe operation, as different loads and conditions can vary widely, making it an unreliable method for determining weight limits. Therefore, using the crane's load chart is the most accurate and safe way to ensure that a load is within the crane's lifting capability.