Grease fitting for American Crane 509

The grease fitting, part number 1474, serves as the entry point for applying lubricant to various mechanical assemblies within the crane. It allows for the injection of grease under pressure into bearings, bushings, pivots, and other friction surfaces. By providing a controlled access point for maintenance, this component ensures that grease reaches the internal areas of moving joints and assemblies to maintain proper lubrication levels.

This component is designed for use on the American Crane 509 crane. It is installed at various lubrication points across the machine, including boom pins, swing bearings, outrigger pivots, and undercarriage joints. The fitting features an internal check valve designed to retain lubricant within the assembly after the grease gun is disconnected. Proper installation ensures a secure connection with standard lubrication equipment for efficient service intervals.

Grease fittings act as the interface between external lubrication tools and the internal wear surfaces of heavy machinery. By enabling the regular replenishment of grease, they help maintain the separation of metal surfaces in high-load areas. Regular inspection of these fittings is necessary to ensure they remain clear of debris and capable of accepting lubricant, which supports the overall maintenance schedule of the machine.