What should be done if a low-pressure hydraulic system is being set up?

When setting up a low-pressure hydraulic system, it is crucial to ensure that safety measures are properly in place to protect against overpressure situations. Setting the pressure relief valve to match the maximum system pressure is essential because the relief valve serves as a critical safety device that prevents the system from exceeding safe pressure levels.

This means if there’s an unexpected rise in pressure due to thermal expansion, fluid temperature changes, or other operational factors, the relief valve will open at the predetermined set point, allowing excess fluid to escape and preventing potential damage to components or system failure. By ensuring that the pressure relief valve is appropriately set, not only does it adhere to safety regulations, but it also maintains the integrity of the system during its operation.

The other choices do not align with best practices for establishing a safe hydraulic system. Ensuring no pressure relief is needed and removing all relief valves would expose the system to significant risk in case of pressure fluctuations. Installing a higher capacity relief valve could also lead to inadequate protection if it does not match the system's maximum pressure, thereby compromising safety. Thus, setting the pressure relief valve to match the maximum system pressure is the most responsible and effective approach when setting up a low-pressure hydraulic system.