Anti-two-block weight for Grove RT-175

The anti-two-block weight, part number 3486000212, serves as an integral part of the crane safety system. It hangs from the anti-two-block switch assembly at the boom tip and is lifted by the hook block as it approaches the boom head. This action triggers the limit switch, signaling the crane control system to stop the hoist function and prevent the hook from colliding with the boom structure. By maintaining the correct position of the switch, it ensures the system remains active during lifting operations.

This component is suitable for various rough-terrain cranes including the Grove RT-175, RT-650E, RT-87, RT-875, RT-875E, and T-650E. It is also compatible with corresponding models from P&H and Terex that utilize the same safety system configuration. The weight is designed to hang freely from the switch, allowing it to be displaced by the hook block when the load reaches the maximum allowable height. Proper installation and regular inspection of the weight and its associated cable are required to ensure the anti-two-block system functions correctly during crane operation.