Back-up ring for Terex HC230

The back-up ring, part number 0762 135 90, serves as a critical component within the hydraulic or pneumatic sealing assemblies of the Terex HC230 crane. Its primary function is to support primary seals, such as O-rings, by preventing them from extruding or deforming when the system is subjected to high operating pressures. By reinforcing the primary seal, this component helps maintain the integrity of the fluid or gas containment, which is necessary for the efficient operation of the machine's hydraulic circuits.

This component is engineered for fitment on the Terex HC230 model. The specification G90-T3 is associated with this part design. Back-up rings are typically installed in hydraulic cylinders, valves, and pump assemblies to ensure that the primary sealing element remains in its correct position. By filling the gap between the mating surfaces of a seal groove, the back-up ring prevents the primary seal from being forced into the clearance space, thereby maintaining the effectiveness of the entire sealing system during operation.