An industrial vehicle , such as a semi-trailer truck or a tractor, or a dump truck, or a military vehicle, or a heavy-duty construction vehicle. comprising a pneumatic system , a first mechanical device and a second mechanical device , the industrial vehicle comprises a steering column , a steering wheel , at least a first articulation and a second articulation, wherein the first articulation allows a pivoting movement (F2, F2') of the steering column , relative to a fixed frame of the vehicle, around a respective first rotation axis (X36, X37), wherein the second articulation allows a tilting movement (F1) of the steering wheel relative to the steering column , around a second rotation axis (X38), the pneumatic system including: - a first pneumatic actuator for commanding the first mechanical device , - a second pneumatic actuator for commanding the second mechanical device , - a pneumatic control valve switchable between several states to command of the first and second actuators ; wherein the first mechanical device is a locking mechanism of either one of the first articulation or the second articulation and the second mechanical device is a locking mechanism of the other articulation, wherein the control valve comprises an actuation portion , movable in translation between: - a resting position, corresponding to a first state (S1) of the control valve , - a first pushed position, corresponding to a second state (S2) of the control valve , and - a second pushed position, corresponding to a third state (S3) of the control valve , and wherein the first pushed position corresponds to an intermediary position between the resting position and the second pushed position. comprising a pneumatic system , a first mechanical device and a second mechanical device , the industrial vehicle comprises a steering column , a steering wheel , at least a first articulation and a second articulation, wherein the first articulation allows a pivoting movement (F2, F2') of the steering column , relative to a fixed frame of the vehicle, around a respective first rotation axis (X36, X37), wherein the second articulation allows a tilting movement (F1) of the steering wheel relative to the steering column , around a second rotation axis (X38), the pneumatic system including: - a first pneumatic actuator for commanding the first mechanical device , - a second pneumatic actuator for commanding the second mechanical device , - a pneumatic control valve switchable between several states to command of the first and second actuators ; - a first pneumatic actuator for commanding the first mechanical device , - a second pneumatic actuator for commanding the second mechanical device , - a pneumatic control valve switchable between several states to command of the first and second actuators ; wherein the first mechanical device is a locking mechanism of either one of the first articulation or the second articulation and the second mechanical device is a locking mechanism of the other articulation, wherein the control valve comprises an actuation portion , movable in translation between: - a resting position, corresponding to a first state (S1) of the control valve , - a first pushed position, corresponding to a second state (S2) of the control valve , and - a second pushed position, corresponding to a third state (S3) of the control valve , - a resting position, corresponding to a first state (S1) of the control valve , - a first pushed position, corresponding to a second state (S2) of the control valve , and - a second pushed position, corresponding to a third state (S3) of the control valve , and wherein the first pushed position corresponds to an intermediary position between the resting position and the second pushed position. <EOS>