Back-up ring for Grove TMS-760

The 7755011609 back-up ring serves as a mechanical support component within the hydraulic systems of the Grove TMS-760 crane. Its primary function is to provide structural reinforcement to primary seals, such as O-rings, by filling the clearance gap between the seal and the groove wall. This prevents the primary seal from extruding or deforming when subjected to the high operating pressures found in crane hydraulic circuits.

This component is designed for the Grove TMS-760 truck crane, where it is integrated into the sealing assemblies of hydraulic cylinders and various fluid connections. By maintaining the integrity of the primary seal, the back-up ring ensures that hydraulic systems remain leak-free during the operation of the boom and outriggers. The precise dimensions of this component are engineered to fit the specific groove profiles of the TMS-760 hydraulic hardware.

In hydraulic systems, back-up rings are used to protect softer sealing elements from pressure-induced damage. By preventing the extrusion of the primary seal into the gap between moving parts, the back-up ring maintains the seal's geometry and effectiveness, which is necessary for the consistent performance of hydraulic actuators and valves under load.