Liebherr LTM 1095-5.1 - Manual (Page 7)

LTM 1095-5. 1
7
Variable steering concept
Active rear-axle steering
The rear axles are actively electro-hydraulically controlled in accordance with
the speed and steering angle of the front axle. Five different steering pro-
grammes (P) can be selected by touch button.
• Remarkable reduced tyre wear
• Improved manoeuvrability
• Stable driving condition even at high speeds
• All 5 axles steerable, no lifting of centre axles on crab steering
High safety standards –
entire know-how from Liebherr
• Centering cylinder for automatic straightening of rear axles in case of failure
• Two independent hydraulic circuits with wheel- and engine driven hydraulic
pump
• Two independent control computers
P1 Road steering
The axles 1 and 2 are steered mechanically by
the steering wheel. The axles 3, 4 and 5 are
steered actively speed depending and subject
to the axle lock of the front axles. From 30 km/h
the axles 3 and 4 are set to straight driving
and locked. At speeds higher than 60 km/h
also the axle 5 is set to straight drive and
locked.
P2 All-wheel steering
The axles 3, 4 and 5 are turned depending
of the axle lock of the front axles by the
steering wheel so far that smallest turning
radii are achieved.
P3 Crab steering
The axles 3, 4 and 5 are turned in the
same direction as the wheel lock on axles
1 and 2 by the steering wheel.
P4 Reduced swing out
The axles 3, 4 and 5 are turned depend-
ing on the axle lock of the front axles, so
that the swing out of the chassis rear gets
minimized.
P5 Independent rear-axle steering
The axles 1 and 2 are turned by using the
steering wheel; the axles 3, 4 and 5 are
steered by push button independently
from the axle lock of the axles 1 and 2.
Centering cylinder at the rear
axles
• Automatic straightening of rear
axles in case of failure