To determine the load capacity of the digger derrick when a boom stage is not fully retracted, you should use the capacity for that boom when it is?

When determining the load capacity of a digger derrick with the boom stage not fully retracted, it is essential to refer to the capacity for that boom when it is extended. This is because the load capacity is affected significantly by the boom's position and how far it has been extended. The extended boom is typically the configuration that shows the least stability and highest potential for load-related risks, thus it provides the most realistic measure of the capacity limits when operating the machine.

In this state, the load capacity charts typically reflect the maximum weight that can safely be handled without risking operational hazards. It takes into account the leverage created by the boom's length and angle, ensuring that safety and operational guidelines are adhered to when performing heavy lifting tasks. Therefore, when assessing the machine's limits, referencing the capacity of an extended boom offers the most accurate guidance for safe operation.