A stuck relief valve can lead to what issue in a hydraulic system?

A stuck relief valve can create significant issues within a hydraulic system, primarily resulting in high system pressure. The relief valve's primary function is to maintain the hydraulic system's pressure within safe limits by diverting excess fluid back to the reservoir when the pressure exceeds a designated threshold. If this valve is stuck in a closed position, the pressure builds up because the hydraulic fluid cannot escape, leading to excessively high pressure in the system.

In addition to high pressure, a stuck relief valve can also affect system flow. When the pressure exceeds design specifications, it can restrict the flow of fluid through the system, leading to low flow conditions. If the flow is hindered, it could cause components down the line to starve for fluid, which can lead to decreased performance and potential damage.

Therefore, the situation directly correlates to both high system pressure and low system flow, making the choice that states both conditions are a result of a stuck relief valve particularly appropriate. This understanding highlights the importance of regular maintenance and monitoring of relief valves as a preventive measure in hydraulic system management.