Free the Wheel

A robot (emulated by the red rod with two black gripper teeth) has to fulfil different actions before it can release the white wheel; see 1st video.

1st action: push in the black Technic bars horizontally for to build a ramp and for the wheel not to fall into the empty space when finally pushed.

2nd: pull the lever with black handle horizontally out of the way of the sliding car for it to be able to slide sideway.

3rd: push the blue Technic beam downwards for the sliding car to move to the right and for the blue stopper to be able to be pushed down.

4th: push the blue stopper downwards for the wheel to be able to be pushed down the ramp at the end.

5th: push the black bricks all the way in for the rotating mechanism to reach the right place.

6th: rotate the gearwheel to lower the Technic beam and hence push the wheel.

When the wheel leaves the ramp made out Technic bars, it pushes an Technic beam with an attached flag to signal the wheel release.

More details in video 2