dangerous consequences for example one could start up in the wrong direction the wheels could be locked or the gear could be destroyed fig6 shows a gearshift procedure intended to solve the above mentioned problem the reverse speed r and the first speed are engaged as explained in reference to fig5 subsequently however the main actuation member is moved to the gearshift gear step of speed range 6 4 that belongs to the same subgear as gear step of speed range 2 r in that position the gearshift shaft is moved with the main and secondary actuation members by way of a rotation angle that corresponds to a disengagement movement the prerequisite here is that the flow of force exists to the secondary actuation element subsequently the main actuation member is set on neutral and is moved into the gear step of speed range 2 r there one now tries according to plan to engage the second speed the core of the invention thus is in coping with potential speed settings in terms of safety first of all to move the secondary actuation element into the gear step of speed range that is to be set and to disengage the speeds that are connected there subsequently the main actuation member is moved into the gear step of speed range that is.