Steering Chassis Function overview of Servotwin ® 1 Power steering pump 4 Servotwin ® steering gear 6 Torsion bar with torque sensor 7 Worm gear 8 Electric motor A73 Electrohydraulic power steering (APS) control unit A76 Redundant power supply (RPS) control unit A77 Steering angle sensor G3 Buffer battery M H Manual torque at steering wheel M L Output torque at steering gear M M Electrical torque M P Hydraulic torque A Electric steering assist B Hydraulic steering assist W46.00-1010-00 Steering gear The ZF steering gear already familiar from the Actros is supplemented by an electromechanical unit for the Servotwin ® system. The electromechanical unit consists of:
Torsion bar with torque sensor (6) Electric motor (8) Worm gear (9) Electrohydraulic power steering (APS) control unit (A73) Steering angle sensor (A77) The electric motor and the worm gear ensure that an additional torque acts on the input of the steer- ing gear in parallel with the steering wheel torque. W46.20-1067-00 62 i Introduction of the New Truck Generation - The New Arocs (Model 964) – This printout will not be recorded by the update service. Status: 01 / 2013 –