User Manual

000 293 646 0 - SYS-H XERION 3300 - 04/05 27
2 Steering hydraulics
System concept
413
2 Steering hydraulics
System concept
Description
The vehicle is equipped with an EHL steering system.
EHL is the German abbreviation of "Electro-hydraulic steering".
The electro-hydraulic steering system EHL is an electro-hydraulically controlled,
intelligent automatic steering system for the rigid axle (2).The floating axle (1)
located at the front in direction of travel is steered manually by the steering
wheel as usual. When Autopilot steering is activated, sensors ensure the
automatic steering of the floating axle (1) along the crop edge. The rigid axle (2)
located at the rear in direction of travel is steered automatically as a function of
the current steering angle of the front axle and of the selected steering strategy.
If required, the "Ground speed control lever" steering strategy also enables
manual steering of the rigid axle (2) independently of the front axle. Both axles
may be steered in order to increase vehicle manoeuvrability.
There is a differentiation between the emergency steering and Orbitrol steering
of rigid axle (2) or floating axle (1) operating modes. When using the Orbitrol
steering, the floating axle (1) is steered entirely by hydraulic means. This axle is
steered by electro-hydraulic means, but cannot be influenced. At high vehicle
speeds (road travel) the rigid axle (2) is tracked in the straight ahead position.