Where should the return line outlet be in relation to the fluid level?

The return line outlet should be positioned below the fluid level and facing away from the fluid surface. This setup is crucial in ensuring that the return fluid is properly directed back into the system without creating turbulence or agitation at the fluid surface.

By positioning the outlet below the fluid level, it helps minimize the risk of aeration, where air can be drawn into the fluid system, which could lead to inefficiencies, potential damage, or disruptions in the fluid flow. Additionally, facing the outlet away from the surface reduces disturbance, helping to maintain the overall integrity and performance of the hydraulic system. This design promotes a smoother flow and enhances the return process, ensuring that the fluid can move back into the reservoir efficiently and without introducing unwanted contaminants.