Terex
Back-up ring for Terex HC230
This back-up ring is designed for use in the hydraulic sealing systems of the Terex HC230 crawler crane. It provides necessary support to prevent the extrusion of primary seals under high operating pressures.
Parts diagram
Compatible models
Specifications
- Part number
- 0782 303 15
- Brand
- Terex
The back-up ring, identified by part number 0782 303 15, serves as an auxiliary component within the hydraulic sealing assemblies of the Terex HC230 crawler crane. Its primary function is to provide a rigid support structure for O-rings or lip seals, preventing them from being forced into the clearance gaps between mating surfaces when the system is subjected to high hydraulic pressure. By maintaining the position and shape of the primary seal, this component ensures the ongoing integrity of the hydraulic circuit.
This part is specifically engineered for fitment in the Terex HC230. It is installed within the seal groove, typically positioned on the low-pressure side of the primary seal to counteract deformation. In heavy machinery, back-up rings are essential for the proper operation of hydraulic cylinders, valves, and pumps, where they protect sealing elements from premature failure caused by extrusion. Proper installation of this component is necessary to maintain the pressure-holding capabilities of the hydraulic system and to prevent fluid leakage during operation.