At what point in the jib assembly procedure is the jib attached to the lattice boom tip?

The correct point in the jib assembly procedure where the jib is attached to the lattice boom tip is after the boom is assembled. This is critical because attaching the jib before the boom is fully assembled would not allow for proper alignment and stability. The assembly of the boom provides the necessary structure and support capabilities to safely handle the additional load and stresses that will be introduced when the jib is later attached.

Additionally, completing the boom assembly first ensures that all components are securely connected, which is essential for the safety and functionality of the crane system as a whole. Once the boom is fully constructed and inspected, attaching the jib can take place, allowing for the next steps in the overall crane assembly process to occur safely.