Anti-two-block weight assembly for Manitowoc 600E

The anti-two-block weight assembly, part number 204338, serves as a component of the safety system on Manitowoc 600E cranes. This assembly is suspended from the hoist line and is engineered to interact with the anti-two-block switch located at the boom head. When the hook block reaches a predetermined proximity to the boom tip, the weight shifts, triggering the switch to interrupt hoist and boom extension functions. This mechanism prevents the hook block from striking the boom point, which protects the crane structure and the hoist rope from damage.

This component is specifically configured for the Manitowoc 600E model. Proper installation and maintenance of the weight are necessary to ensure the switch activates consistently during crane operation. It acts as a mechanical trigger for the electronic safety circuit that monitors the distance between the lifting accessories and the boom nose. By maintaining the correct weight and balance, the assembly ensures that the crane safety system responds accurately to the position of the load block during lifting tasks.