Litronic control system, Rig inclination display, Automatic rig alignment – Liebherr LRB 155 User Manual
Page 10: Automatic parallel adjustment of rig, Working depth indicator, Vibrator control, Interface for pde

Set value, digital
display Y direction
Freefall HW 1
and HW 2
Vibrator
Swing speed
(1–2–3)
Engine speed
Drive limit
Acoustic alarm
deactivation
Page forward/
back symbol
Adjustment
page symbol
Drilling operation
preselection
Set value,digital
display X direction
Cable length
measurement
Clamping head
pressure
Inclination digital
display
Analog inclination
display
Vibrator
frequency display
Cylinder for
support arm brace
Blocking carriage
locked
Adjustment
carriage locked
Vibrator pump
pressure
Additional pump 2
pressure
Litronic control system
Rig inclination display
The rig inclination in x– and y– directions is shown on the cab screen in
large letters and in crosshair.
Automatic rig alignment
A push button automatically adjusts the rig to vertical position, inde-
pendent of the current inclination.
Automatic parallel adjustment of rig
A push button increases or reduces the rig radius, without modifying
the adjusted inclination.
Working depth indicator
The length of the unreeled rope is measured on the crowd winch and
displayed in large letters on the cab screen.
Vibrator control
The vibrator control consists of stepless adjustment of the vibrator
frequency, automatic clamping head system and stepless adjustment
of eccentrics.
Interface for PDE
An interface transmits the data of the control system, e.g. working
depth to the connected PDE system.
10 LRB 155