When connecting boom sections, which part should be secured first?

When connecting boom sections, securing the bottom pins first is critical for ensuring stability and structural integrity as the boom is assembled. The bottom pins serve as a foundational point that supports the weight of the entire boom structure and helps maintain correct alignment during the connection process.

Securing the bottom pins first provides a solid base, which helps prevent any potential shifting or misalignment that could occur as additional sections are added or secured. This approach ensures that the higher sections can be connected more easily and safely, as the already established lower structure will support the weight and forces acting upon it.

Additionally, starting from the bottom allows for a systematic assembly process, reducing the risk of accidents or mechanical failures that could arise from an unsecured assembly, particularly at height. The bottom pins, once secured, create a reliable starting point that contributes to the safety and functionality of the equipment being assembled.