Anti-two-block switch cable for Grove RT-175

The 9333102986 cable facilitates electrical communication between the boom-mounted cable reel and the anti-two-block switch assembly. By carrying signals from the sensor located at the boom tip, this component allows the crane's safety system to monitor the proximity of the hook block to the boom head, preventing contact between these two structures during lifting operations.

This part is designed for use in various rough-terrain cranes, including the Grove RT-175, RT-54-0E, RT-650E, RT-87, RT-875, RT-875E, and T-650E. It also serves equivalent models under the P&H and Terex brands. The cable ensures that the anti-two-block system receives accurate data, which is necessary for the automatic lockout of hoist and boom extension functions when the load block approaches the boom tip.

In crane safety systems, the anti-two-block switch serves as a critical limit device. It monitors the position of the load block relative to the boom point and triggers an interrupt signal if the block reaches a predetermined distance. This prevents mechanical damage to the wire rope, boom structure, and rigging components that could occur during a two-blocking event.