Abstract: A guidable bogie truck for a mobile crane, such as a mobile gantry crane, includes a frame having longitudinal supports; a pair of wheel mechanisms connected to one end of the frame and a pair of wheel mechanisms connected to the opposite end of the frame, one of the pairs of wheel mechanisms being connected to pivotable axles which allows the associated pair of wheel mechanisms to constitute guide wheel mechanisms; four support legs movably connected to the frame; lifting devices connected to each of the four support legs to extend them downwardly to contact the ground and support the frame or to retract them upwardly towards the frame; wheel drive motors for turning the wheel mechanisms; adjustment motors for pivoting the pivotable wheel axles; and a common control device for controlling the operation of the bogie truck parts.