Technicaldata, Engine, Hydraulicsystem – Liebherr LH 80 M Litronic User Manual

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

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LH 80 M Litronic Machine for Industrial Applications

TechnicalData

Engine

Rating per ISO 9249

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230 kW (313 HP) at 1,700 RPM

Model

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Liebherr D936 according to level IIIB / Tier 4i

Type

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6 cylinder in-line

Bore/Stroke

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122/150 mm

Displacement

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10.5 l

Engine operation

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4-stroke diesel

Common-Rail

turbo-charged and after-cooled

reduced emissions

Cooling

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water-cooled with integrated motor oil cooler

Air cleaner

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dry-type air cleaner with pre-cleaner, primary and

safety elements

Fuel tank

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910 l

Engine idling

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sensor controlled

Electrical system

Voltage

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24 V

Batteries

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2 x 170 Ah/12 V

Alternator

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three phase current 28 V/100 A

Standard

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Liebherr particle filter

HydraulicSystem

Hydraulic pump

for attachment

and travel drive

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two Liebherr variable flow, swashplate pumps

(double construction)

Max. flow

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2 x 350 l/min.

Max. pressure

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350 bar

Pump regulation

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electro-hydraulic with electronic engine speed sens-

ing regulation, pressure compensation, flow compen-

sation, automatic oil flow optimizer

Hydraulic pump

for swing drive

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reversible, variable flow, swashplate pump, closed-

loop circuit

Max. flow

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185 l/min.

Max. pressure

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380 bar

Hydraulic tank

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390 l

Hydraulic system

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910 l

Hydraulic oil filter

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2 full flow filters in return line with integrated fine filter

area (5 μm)

Hydraulic oil cooler

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cooling system, consisting of a cooling unit for water

and charge air and a 2

nd

cooler for hydraulic oil, each

with an infinitely variable, thermostatically controlled

fan drive system

MODE selection

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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)

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for precision work and lifting through very sensitive

movements

E (ECO)

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for especially economical and environmentally friendly

operation

P (Power)

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for maximum digging power and heavy duty jobs

Tool Control

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ten preadjustable pump flows and pressures for add

on tools

HydraulicControls

Power distribution

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via control valves in single block with integrated

safety valves

Servo circuit

Attachment and swing

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with hydraulic pilot control and proportional joystick

levers

Travel

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electroproportional via foot pedal

Additional functions

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via switch or electroproportional foot pedals

Option

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Liebherr-Proportional-Control, proportionally acting

transmitters on the joysticks for additional hydraulic

functions

SwingDrive

Drive by

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Liebherr swash plate motor in a closed system with

integrated brake valve

Transmission

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Liebherr planetary reduction gear

Swing ring

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Liebherr, sealed single race ball bearing swing ring,

internal teeth

Swing speed

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0 – 6.4 RPM stepless

Swing torque

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154 kNm

Holding brake

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spring applied – pressure released

Option

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pedal controlled positioning brake

Uppercarriage

Type

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slewing platform made from high-strength steel plate,

designed for the toughest requirements

Operator’sCab

Cab

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safety cab structure with individual windscreens or

featuring a slide-in subpart under the ceiling, work

headlights integrated in the ceiling, a door with a side

window (can be opened on both sides), large stowing

and depositing possibilities, shockabsorbing suspen-

sion, sounddamping insulating, tinted laminated

safety glass, separate shades for the sunroof window

and windscreen

Operator’s seat Standard

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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)

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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)

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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

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joysticks with arm consoles and swivel seat

Operation and displays

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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

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automatic air-conditioning, recirculated air function,

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 and are

accessible from the outside; heating-cooling unit,

designed for extreme out-side temperatures, sensors

for solar radiation, inside and outside temperatures

Noise emission

ISO 6396

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L

pA

(inside cab)

= 71 dB(A)

2000/14/EC

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L

WA

(surround noise) = 105 dB(A)

Undercarriage

Type

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torsion-resistant box design made from high-strength

steel plate, designed for the toughest requirements

Drive

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variable flow swashplate motor with automatic brake

valve

Travel speed

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0 – 10 km/h stepless

Driving operation

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automotive driving using accelerator pedal, cruise

control function: storage of variable accelerator pedal

positions

Axles

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90 t drive axles; manual or automatic hydraulically

controlled front axle oscillation lock

Service brake

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wet, maintenance-free, low backlash multi disc

brakes

Holding brake

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wet, maintenance-free multi disc brakes

Stabilization

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4-point outriggers

Attachment

Type

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high-strength steel plates at highlystressed points for

the toughest requirements. Complex and stable

mountings of attachment and cylinders.

Hydraulic cylinders

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Liebherr cylinders with special seal system. Shock

absorption

Energy recovering cylinder

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Liebherr gas cylinder with special sealing and control

system

Bearings

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sealed, low maintenance

Lubrication

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Liebherr full-automatic central lubrication system

(country-dependent)

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