Terex
Relief valve for Terex HC230
This relief valve is designed for the hydraulic system of the Terex HC230 crawler crane. It manages system pressure by diverting excess fluid to protect hydraulic circuits from overpressure.
Parts diagram
Compatible models
Specifications
- Part number
- 0786 728 91
- Brand
- Terex
The relief valve 0786 728 91 serves as a safety component within the hydraulic system of the Terex HC230 crawler crane. It is designed to regulate fluid pressure by opening automatically when the circuit pressure exceeds a pre-set limit. By diverting excess hydraulic fluid back to the tank or to a lower-pressure line, the valve ensures that the system maintains safe operating parameters during heavy lifting or precise movements. This specific unit is often associated with the third hydraulic function circuit, which is commonly used to operate auxiliary attachments on the crane.
This component is compatible with the Terex HC230 model. Proper operation of this valve is necessary to prevent potential damage to hydraulic pumps, cylinders, and hoses caused by pressure spikes. By maintaining the integrity of the hydraulic circuit, it helps prevent system failures that could lead to equipment downtime. Relief valves are standard safety devices in heavy machinery, functioning as a pressure-limiting mechanism to safeguard the entire hydraulic assembly from the risks associated with excessive force or flow restrictions within the system.

