Technicaldata, Engine, Hydraulicsystem – Liebherr LH 80 M Litronic User Manual
Page 2: Hydrauliccontrols, Swingdrive, Uppercarriage, Operator’scab, Undercarriage, Attachment

2
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)