Steering
60
Chassis
i
Introduction of the New Truck Generation - The New Arocs (Model 964)
Electrohydraulic power steering,
Servotwin
®
(C6H)
The Servotwin
®
electrohydraulic power steering
system is standard equipment in all 4-axle vehicles
with 9 t front axle load; its use in vehicles with front
axle loads below 9 t is dictated by the wheelbase
and the tires. For 4-axle vehicles that do not meet
the above criteria, the Servotwin
®
steering is avail-
able as special equipment.
The Servotwin
®
system combines a conventional
hydraulic steering gear with an electric drive sys-
tem. This replaces the second hydraulic steering
circuit previously used in 4-axle vehicles.
Servotwin
®
features an electrical emergency steer-
ing function in the event of a hydraulics failure. If
the electrical system fails, the hydraulic steering
assistance remains intact.
The electrical power assistance means that a
speed-dependent control force can be produced
and the wheels are actively returned to their
straightahead position.
Overall, this provides a substantial improvement in
steering comfort and dynamics.
If the on-board electrical system fails and the
engine stops at the same time while driving, the
electrical steering system is powered by a buffer
battery.
– This printout will not be recorded by the update service. Status: 01 / 2013 –
