How is backward stability of a crane tested?

The backward stability of a crane is tested by using a specific configuration that simulates an extreme operating condition, such as having the boom at a maximum angle without any load. This scenario allows operators and inspectors to assess how the crane behaves when positioned in a way that could potentially compromise its stability. By evaluating the crane in this manner, it's possible to observe if the crane can maintain its balance and stability in situations where the boom angle is steep, identifying any design flaws or stability issues before the crane is placed under actual loading conditions.

This method helps ensure that the crane has the necessary design characteristics and safety margins to remain stable under various circumstances, especially when operating near its limits. It is crucial for crane operators to understand these tests as they relate to safety and performance while working with cranes.