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This can have many causes, starting at the gearbox, followed by the transmission of torque to the turntable, the build of the turntable itself and as Joost wrote, the pneumatic hoses or other components can also interfere with the correct operation. I would recommend following the path of the torque from the motor to the gear that turns the turntable and ...


When rotation / movements is blocked in a pneumatic set, this is often caused by the routing of the hoses. Remove the crane and check if its possible to rotate the crane by hand. If not, check if the hoses have enough slack to allow movement, or try the re-route them again.


The retail box does not show the usual "+Power Functions" decorations on it so I doubt there are official instructions. Time to get your build on.

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