When a crane is equipped with multiple hoisting winches, where will the auxiliary ball typically be reeved?

When a crane is equipped with multiple hoisting winches, the auxiliary ball is typically reeved over the auxiliary boom head sheave. This configuration is designed to maximize the crane's versatility and capability.

The auxiliary boom usually serves as an extension or additional lifting point separate from the main boom, allowing for various lifting configurations. By reeving the auxiliary ball over the auxiliary boom head sheave, the crane can efficiently handle different loads and elevations, providing increased flexibility when lifting and moving materials. This setup also helps ensure that the load is balanced properly, reducing the risk of accidents or instability during operations.

Using the auxiliary boom head sheave is particularly important when lifting lighter loads or performing tasks that require quick repositioning since the auxiliary system can be used independently of the main hoist, enhancing overall operational efficiency.