HDR100 Piston Pulley The HDR100 Piston Pulley is a replacement pulley component designed for HDR100 piston and ram assemblies used within automatic cluster remover systems. This part helps guide movement within the assembly, supporting the controlled action needed for reliable ACR performance during daily milking. In an automatic cluster remover setup, the pulley plays an important role in helping connected parts move smoothly and stay correctly aligned. Over time, pulleys can become worn, marked, stiff or damaged through repeated movement, tension and regular parlour conditions. Replacing a worn pulley with the HDR100 Piston Pulley helps restore smooth operation, reduce unnecessary strain on surrounding components and support dependable cluster removal. This component is useful for dairy engineers and farm teams carrying out HDR100 servicing, repairs or fault finding. It is especially helpful where the piston or ram assembly is not moving as freely as it should, but the wider unit remains suitable for repair. Keeping the correct pulley available can make maintenance quicker and help reduce downtime between milkings. The HDR100 Piston Pulley is a practical spare for maintaining aut