Back-up ring for Grove TMS-760

The back-up ring 9926103002 serves as a support component in hydraulic sealing systems. It is positioned on the low-pressure side of a primary seal, such as an O-ring or lip seal, to provide mechanical reinforcement. By filling the clearance gap between mating surfaces, it prevents the primary seal material from extruding into that space when the system is under high operating pressure. This component is specifically designed for use in the Grove TMS-760 truck-mounted crane.

This part is compatible with the Grove TMS-760 model. It is typically installed within hydraulic cylinders, including those used for boom operations, outriggers, and steering systems where high pressure is common. Proper installation ensures the integrity of the hydraulic circuit by maintaining the shape and position of the primary seal.

In hydraulic machinery, back-up rings are used to protect seals from deformation and premature failure caused by pressure cycles. By preventing seal extrusion, these rings help maintain the effectiveness of the hydraulic system and prevent fluid leaks. They are engineered to be compatible with hydraulic fluids and are sized to fit precisely within the seal groove.