UNIPRODO UNI TRAILER 16 Manual De Instrucciones página 18

5. Install the cage body by placing it in the frame. Put the tarp cover over the
cage body and lash it to the left and the right-hand side of the top tube of the
frame.
6. Connect the towing hitch to the seat tube of the bicycle (connect the three
bushings together). Install the clamp on the hitch mechanism and secure with
the bolt. Tighten the clamp's front part to restrict rotation. The hitch
mechanism knob prevents the ball hitch from decoupling. Operating the knob
counter-clockwise releases the hitch; operating the knob clockwise secures the
ball hitch.