Depends on the loader or how you want it to operate. You can't use a hydraulic cylinder and get pressure both ways like raise or lower, or use a bucket tilt and lift cylinders at the same time with the standard system. You can get loader lift like a trip bucket type by hooking lines to the top port looking at unit behind starter. If it still has the tee fittings and line outlets hook one side to each end of lines from the tee from the top port. Oil will pressure cylinders up when rod is pulled and lowered when pushed forward. Oil goes in and out the same line for pressure or lower with a vent installed in other port of lift cylinder. If wanting to run a no pressure line back to reservoir from other port of lift cylinder plumb those into the pipe plug on rear of liftall down low where a double acting valve returned to if used. Fittings out bottom of this double acting valve in picture go to plug.