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Grove

O-ring for Grove RT865

P/N 9904103779

This O-ring 9904103779 serves as a sealing component for hydraulic and pneumatic connections in Grove RT865 and TR522 cranes. It provides a leak-proof seal between mating surfaces to maintain system pressure.

Compatible models

Specifications

Part number
9904103779
Brand
Grove

The O-ring is a toroidal seal used throughout hydraulic and pneumatic systems to prevent fluid or gas leakage and to block the entry of external contaminants. By maintaining a tight seal between two or more components, it ensures the integrity of pressure-driven systems and prevents the loss of hydraulic fluid, which is necessary for the proper function of valves, cylinders, and pumps within the machine.

This component is compatible with Grove RT865 and TR522 crane models. It is installed in various connection points where hydraulic lines, hoses, and fittings meet, ensuring that the system remains pressurized during lifting operations. Proper installation within the designated groove is required to achieve the necessary compression for an effective seal.

O-rings function by deforming under pressure within a gland or groove to create a barrier against fluid migration. In heavy machinery, these seals are subjected to varying pressures and temperatures, requiring the correct material composition to remain effective. Regular inspection of these seals is standard practice during maintenance to identify signs of wear or degradation before a leak occurs, helping to maintain the operational stability of the crane's hydraulic circuits.