Technicaldata, Engine, Hydraulicsystem – Liebherr LH 120 M High Rise Litronic User Manual

Page 2: Hydrauliccontrols, Swingdrive, Uppercarriage, Operator’scab, Undercarriage, Attachment, Completemachine

LH 120 M Litronic Machine for Industrial Applications

TechnicalData

Engine

Rating per ISO 9249

��

400 kW (543 HP) at 1,800 RPM

Model

��

Liebherr D9508 according to stage IIIA / Tier 3

Type

��

8 cylinder V-engine

Bore/Stroke

��

128/157 mm

Displacement

��

16.16 l

Engine operation

��

4-stroke diesel

Common-Rail

turbo-charged and after-cooled

reduced emissions

Harmful emissions values

��

in accordance with 97/68/EG stagee IIIA

Cooling

��

water-cooled with integrated motor oil cooler

Air cleaner

��

dry-type air cleaner with pre-cleaner, primary

and safety elements

Fuel tank

��

3,350 l

Engine idling

��

sensor controlled

Electrical system

Voltage

��

24 V

Batteries

��

4 x 170 Ah/12 V

Alternator

��

three phase current 28 V/140 A

Option

��

Liebherr particle filter

HydraulicSystem

Hydraulic pump

for attachment

and travel drive

��

four Liebherr variable flow, swashplate pumps

Max. flow

��

4 x 309 l/min.

Max. pressure

��

350 bar

Hydraulic pump

regulation and control

��

Positive Control multi-circuit hydraulic system for

independent and demand controlled dosing via the

hydraulic pumps; sensor-controlled

Hydraulic pump

for swing drive

��

reversible, variable flow, swashplate pump, closed-loop

circuit

Max. flow

��

483 l/min.

Max. pressure

��

280 bar

Hydraulic tank

��

1,240 l

Hydraulic oil filter

��

1,845 l

Hydraulic oil filter

��

3 main return filters with integrated partial micro filtra-

tion (5 μm), 1 high pressure filter for each main pump

Hydraulic oil cooler

��

cooling system, consisting of a cooling unit for water

and charge air and a 2

cooler for hydraulic oil, each

with an infinitely variable, thermostatically controlled fan

drive system

MODE selection

��

adjustment of engine and hydraulic performance via

a mode pre-selector to match application, e.g. for

especially economical and environmentally friendly

operation or for maximum material handling and

heavy-duty jobs

S (Sensitive)

��

for precision work and lifting through very sensitive

movements

E (ECO)

��

for especially economical and environmentally friendly

operation

P (Power)

��

for maximum digging power and heavy duty jobs

P+ (Power-Plus)

��

for highest performance and for very heavy duty

applications, suitable for continuous operation

HydraulicControls

Power distribution

��

via control valves in single block with integrated safety

valves

Servo circuit

Attachment and swing

��

with electro-hydraulic pilot control and proportional

operating joysticks

switchable slewing gear (torque or speed control)

Driving and steering

��

with electro-hydraulic pilot control and proportional

operating joystick

Additional functions

��

proportional control, proportionally acting transmitters

on the joysticks for additional hydraulic functions

SwingDrive

Drive

��

Liebherr swashplate motor in a closed system with

integrated brake valve

Transmission

��

Liebherr planetary reduction gear

Swing ring

��

Liebherr, sealed single race ball bearing swing ring,

internal teeth

Swing speed

��

0 – 5.5 RPM stepless

Swing torque

��

280 kNm

Brake

��

holding brake (spring applied – pressure released)

Uppercarriage

Type

��

slewing platform made from high-strength steel plate,

designed for the toughest requirements

Operator’sCab

Cab

��

spacious operator cabin with profiled design, excellent

view on working area, access from behind, fixed front,

roof and base panel made of bullet proof glass, front

screen with electrical heating, shock-absorbing suspen-

sion, sounddamping insulating, sliding window on left

side, sun shadings on all relevant windows, folding seat

for instructor

Operator’s seat Standard

��

air cushioned operator’s seat with headrest, lap belt,

seat heater, manual weight adjustment, adjustable seat

cushion inclination and length and mechanical lumbar

vertebrae support

Operator’s seat Comfort (Option)

��

in addition to operator’s seat standard: lockable hori-

zontal suspension, automatic weight adjustment,

adjustable suspension stiffness, pneumatic lumbar

vertebrae support and passive seat climatisation with

active coal

Operator’s seat Premium (Option)

��

in addition to operator’s seat comfort: active elec tronic

weight adjustment (automatic readjustment), pneumatic

low frequency suspension and active seat climatisation

with active coal and ventilator

Control system

��

joysticks with arm consoles and swivel seat

Operation and displays

��

large high-resolution operating unit, selfexplanatory,

colour display with touchscreen, video-compatible,

numerous setting, control and monitoring options,

e.g. air conditioning control, fuel consumption, machine

and tool parameters

Air-conditioning

��

standard air conditioning, combined heating-cooling

unit, fast de-icing and demisting at the press of a button,

air vents can be operated via a menu; recirculated air

and fresh air filters can be easily replaced

Noise emission

ISO 6396

��

(inside cab)

= 70 dB(A)

2000/14/EC

��

(surround noise) = 108 dB(A)

Undercarriage

Type

��

torsion-resistant box design made from high-strength

steel plate, designed for the toughest requirements

Drive

��

per powered wheelset one Liebherr swashplate motor

with integrated brake valves acting on both sides

Travel speed

��

0 – 7.8 km/h stepless

0 – 4.2 km/h stepless (creeper speed)

Axles

��

wheelsets with suspended 40 t axles, with slewing drive

rotating around the vertical axis, hydraulic cylinder for

leveling

Position of wheelsets

��

6 steering axles, 2 powered and braked, for leveling

and axle load distribution, interconnected by hydraulic

Option

��

8 steering axles, 2 powered and braked, for leveling

and axle load distribution, interconnected by hydraulic

Steering programs

��

front wheel, rear wheel and all-wheel steering,

move to the side in crab steering possible

Service brake

��

two circuit travel brake system with accumulator;

maintenance-free, wet and backlash-free disc brake

Holding brake

��

wet, maintenance-free multi disc brakes

Stabilization

��

x-shaped 4 point support with 4 folding arms, one

vertically positioned support cylinder per folding arm,

support plates with ball-and-socket joint, removable

Attachment

Type

��

high-strength steel plates at highlystressed points

for the toughest requirements. Complex and stable

mountings of attachment and cylinders

Hydraulic cylinders

��

Liebherr cylinders with special seal system.

Shock absorption

Bearings

��

sealed, low maintenance

CompleteMachine

Lubrication

��

central lubrication system for uppercarriage and

attachment, automatically

central lubrication system for undercarriage,

automatically

Steps system

��

undercarriage ascent via ladders (Standard)

undercarriage ascent via ladders and platforms

(High Rise)

uppercarriage with platform left and right and

crossover possibility

parts hot-dip galvanised, nonskid surface