Liebherr LB 36 - Manual (Page 11)

LB 36 11
Technical description
Hydraulic system
The main pumps are operated by a distributor gearbox. Axial piston
displacement pumps work in open circuits supplying oil only when
needed (flow control on demand). The hydraulic pressure peaks are
absorbed by the integrated automatic pressure compensation, which
relieves the pump and saves fuel.
Pumps for working tools 2x 350 l/min
Separate pump for kinematics 180 l/min
Hydraulic oil tank 800 l
Max. working pressure 350 bar
The cleaning of the hydraulic oils occurs via an electronically
monitored pressure and return filter. Any clogging is shown on the
monitor in the cab. The use of synthetic environmentally friendly oil is
also possible.
Swing
Consists of triple-row roller bearing with external teeth and one swing
drive, fixed axial piston hydraulic motors, spring loaded and
hydraulically released multi-disc holding brake, planetary gearbox and
pinion. Selector for 3 speed ranges to increase swing precision.
Swing speed from 0 – 3.5 rpm is continuously variable.
Auxiliary winch
Line pull effective (1 st layer) 100 kN
Rope diameter 20 mm
Line speed 0-89 m/min
Crawlers
The track width of the undercarriage is changed hydraulically.
Propulsion through axial piston motor, hydraulically released spring
loaded multi-disc brake, maintenance free crawler tracks, hydraulic
chain tensioning device.
Drive speed of telescopic undercarriage
0 – 1.34 km/h
Track force 745 kN
Width of 3-web track shoes 900 mm
Transport width 3500 mm
Option:
Width of 3-web track shoes
1000 mm
Transport width 3600 mm
2 speed hydraulic motor for higher travel speed
Control
The control system - developed and manufactured by Liebherr - is
designed to withstand extreme temperatures and the many heavy-
duty construction tasks for which this machine has been designed.
Complete machine operating data are displayed on a high resolution
monitor. A GSM modem allows for remote inquiry of machine data
and error indications. To ensure clarity of the information on display,
different levels of data are shown in enlarged lettering and symbols.
Control and monitoring of the sensors are also handled by this high
technology system. Error indications are automatically displayed on
the monitor in clear text. The machine is equipped with proportional
control for all movements, which can be carried out simultaneously.
Two joysticks are required for operation. Pedal control can be
changed to hand control.
Options:
• PDE
® : Process data recording
• GSM modem
Noise emission
Noise emissions correspond with 2000/14/EC directive on noise
emission by equipment used outdoors.
Rope crowd system
Crowd force (push/pull) 400/400 kN
Line pull (effective) 200 kN
Rope diameter 28 mm
Travel of working tool 18.5 m
Line speed 0-70 m/min
The winches are noted for compact, easily mounted design.
Propulsion is via a maintenance-free planetary gearbox in oil bath.
Load support by the hydraulic system; additional safety factor by
a spring-loaded, multi-disc holding brake. All line pull values are
effective values. The efficiency factor of approx. 25% has already
been deducted.
Engine
Power rating according to ISO 9249, 350 kW (469 hp) at 1900 rpm
Engine type
Liebherr D 846 L A7
Fuel tank 700 l capacity with continuous level
indicator and reserve warning
Engine complies with NRMM exhaust certification EPA/CARB Tier 3
and 97/68 EC Stage III A.
Kelly winch with freewheeling
Line pull effective (2 nd layer) 300 kN
Rope diameter 34 mm
Line speed 0-71 m/min
Option:
Line pull effective (2
nd layer) 400 kN
Rope diameter 38 mm
Line speed 0-59 m/min