What component attaches the carrier assembly to the upper structure of the crane?

The turret assembly is the component that connects the carrier assembly to the upper structure of the crane. It plays a crucial role in allowing the upper structure to rotate around the carrier assembly, facilitating the crane's ability to swing and position loads effectively. This connection is vital for the crane's overall functionality, as it supports the weight and movement of the upper structure while ensuring stability during operation.

The swing hydraulic motor, while important for driving the rotation, does not physically attach the two parts; rather, it provides the power necessary for movement. The rotational bearing allows for smooth movement between components but is not the primary structural connection. The winch assembly is responsible for lifting and lowering loads but is not involved in the connection between the carrier assembly and the upper structure itself.