Abstract: Method and an arrangement for controlling the driving brakes of a vehicle or a vehicle combination with at least two wheel axles, each axle having two or more wheels with tires. The arrangement includes a control unit (1, 21) for controlling the brakes and a signal generator for generating a signal proportional to the air pressure in one or several tires. The control unit (1, 21) is arranged, upon the reception of the signal, to detect an abnormal drop in pressure and to reduce the braking function for all the braking devices (6, 7; 8, 9; 26, 27; 28, 29) on the axle (10, 11; 30, 31) on which an abnormal drop in pressure has been detected in any one tire.

Abstract: A steering shaft arrangement comprises a first housing (9), which accommodates a contact roller (10), the first housing (9) being divided up into a first and second section (13, 14), of which the first section (13) is connected to a steering shaft (1) and the second section (14) is connected to a steering column (6), fixed in relation to the steering shaft (1), the contact roller (10) comprising at least one electrical conductor, which is arranged between the first and the second section (13, 14). A second housing (11) is divided up into a first and second element (19, 20) of which the first element (19) is connected to the steering shaft (1). The second element (20) of the second housing (11) is detachably connected to the second section (14) of the first housing (9).