Position–velocity maps in the Hα and [N ii] λ6583 emission lines along the two pairs of bipolar lobes at PA’s 110° (major bipolar lobes) and 65° (minor bipolar lobes). The levels of the contours overlaid on the PV maps have been selected to emphasize the kinematical structure of the emission in the brightest central regions. The dash-dotted lines overlaid on the [N ii] PV maps correspond to the synthetic emission lines derived from our simultaneous fit to the morphology and kinematics of the two pairs of bipolar lobes.