Hydraulic plug for Demag AC80-1

The hydraulic plug, part number 772 514 73, serves as a closure element for openings in mechanical and hydraulic assemblies. It is specifically engineered for the Demag AC80-1 all-terrain crane, where it provides a seal for ports, test points, or drainage holes that are not required for standard machine operation. By effectively closing these access points, the component maintains the integrity of the hydraulic circuit and prevents the ingress of external contaminants.

This plug is compatible with the Demag AC80-1 system architecture. It ensures that unused hydraulic ports, valve blocks, or pump housings remain sealed against pressure and environmental exposure. Proper installation of this component is necessary to maintain system pressure and prevent the loss of hydraulic fluid or lubricants, which are required for the safe operation of the crane.

In heavy machinery, plugs are used to seal various openings in gearboxes, engine housings, and hydraulic lines. They function to isolate internal systems from the outside environment, ensuring that fluids remain contained and debris is excluded from sensitive internal mechanisms. Maintaining these seals is a standard part of routine hydraulic system maintenance.