Working with the Rotating Platform (see figure A)
You can use the rotating platform (12) to rotate the measuring tool 360° around a central, always visible plumb point. This enables you to set up the laser lines precisely, without having to change the position of the measuring tool.
Place the measuring tool on the rotating platform (12) so that the fastening grooves (13) of the rotating platform fit between the corresponding fastening grooves (6) on the bottom of the measuring tool. Turn the measuring tool clockwise to lock it on the rotating platform.
Unscrew the legs of the rotating platform (12) with the height adjustment screws (10).
Roughly align the rotating platform using the spirit level (8).
If the measuring tool is mounted on the rotating platform (12), you can use the fine adjustment screw (11) to align vertical laser lines precisely with reference points.