To get the pipe high with loosening the nuts is enough, the tip that goes in the pump has two O'Rings and in the other one, you take them out with a fine tip and go with the sample to a hydraulics trade, complete the oil that will spill when you take out the pipe. I put a picture of how the pipe is. [url = / ver-adjunto / aHR0cHM6Ly9jZG4ueW9yZXBhcm8uY29tL3VwbG9hZHMvZGVmYXVsdC8wMDAyLzE3L2Nhw7FvLTM1Mjk2LndlYnp/s/png_b/g/b/b.ng/b.w/b.b/g.b/g.b/g.b