What should an operator refer to before lifting loads with the boom?

Before lifting loads with the boom, an operator should refer to load angle charts. These charts provide critical information regarding the relationship between the angle of the boom and the load capacity it can safely handle. Load angle is important because as the boom angle increases, the lifting capacity can decrease, making it essential for the operator to understand the maximum loads permissible at different boom angles to prevent overloading and ensure safety during operation.

While stability charts, operational safety instructions, and weight capacity guidelines are important aspects of safe rigging practices, load angle charts specifically address how the angle of the boom affects the lifting capacity. Therefore, using load angle charts helps operators make informed decisions when raising or lowering loads, ensuring efficient and safe operation of the equipment.