Position-velocity (PV) diagrams showing gas velocities in six different slits: A) along the jet axis; B) perpendicular to the jet axis through the nucleus; C) perpendicular to the jet axis at 1.̋2 to the north; D) perpendicular to the jet axis at 0.̋25 to the north; E) perpendicular to the jet axis at 0.̋25 to the south; F) perpendicular to the jet axis at 1.̋2 to the south. Contour levels are 3.1 × (1, 3, 5, 9, 18, 36) mJy beam^-1 thus the first level is at 4σ. The colour scale range from 2 to 156 mJy beam^-1.