Anti-Two Block Assembly for Lorain LRT-110

The anti-two block assembly, part number 709A1501, is a safety system designed to prevent the hook block from striking the boom tip or hoist carriage during crane operations. By monitoring the position of the hook, the assembly triggers a warning or automatically halts hoisting and boom extension functions when the block approaches the boom head. This prevents structural damage to the crane, cable failure, and the potential loss of the suspended load.

This assembly includes items 1 through 21 and is specifically designed for installation on the boom tip of Lorain LRT-110 and LRT110-TYP.I rough-terrain cranes. It connects directly to the crane control system to manage operational limits. Regular inspection and testing of this assembly are necessary to ensure the system remains responsive and compliant with safety standards during daily site operations.

Anti-two block systems serve as a primary safety mechanism in lifting equipment. They function by detecting the proximity of the load block to the boom nose, providing an essential safeguard against over-hoisting. Maintaining a functional assembly is necessary to protect the mechanical integrity of the crane and to support safe lifting practices in industrial and construction environments.