Back-up strip for Terex HC230

The back-up strip, part number 0752 004 24, functions as an auxiliary component within the sealing assemblies of the Terex HC230 crane. It is installed alongside a primary seal, such as an O-ring, to provide a rigid support surface that prevents the seal from extruding out of its groove under high-pressure conditions. By maintaining the position of the primary seal, this component helps ensure that the hydraulic or pneumatic system continues to function effectively during operation.

This component is specifically compatible with the Terex HC230 model. It is designed to fit within the existing sealing configurations of the machine's hydraulic circuits, including cylinders and valves. Proper installation of the back-up strip is necessary to prevent the primary seal from being forced out of its housing, which could otherwise lead to fluid leakage and a subsequent loss of system pressure.

In heavy machinery, back-up strips are used in systems where fluid pressure is high enough to deform standard elastomeric seals. By filling the clearance gap between mating parts, the back-up strip allows the primary seal to withstand higher pressure ratings without failing. This configuration is a standard engineering practice for maintaining the seal's geometry and preventing premature wear or damage to the sealing element during peak pressure cycles.