Technical data, Engine, Hydraulic system – Liebherr R 9100 User Manual

Page 16: Hydraulic controls, Electric system, Swing drive, Uppercarriage

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16

R 9100

Technical Data

Engine

1 Liebherr diesel engine

Rating per ISO 9249

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565 kW/757 HP at 1,800 rpm

Model

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Liebherr D9512

(USA/EPA Tier 2 or fuel consumption

optimized setting)

Type

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V12 cylinder engine

Bore/Stroke

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128/157 mm / 5.04/6.18 in

Displacement

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24,24 l/1,479 in

3

Engine operation

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4-stroke diesel

common-rail direct injection

turbo-charged

Cooling

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water-cooled, hydrostatic fan drive

Air cleaner

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dry-type air cleaner with pre-cleaner,

primary and safety elements, automatic

dust discharge

Fuel tank

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1.478 l/390 gal

Engine idling

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electronically controlled

Electrical system

Voltage

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24 V

Batteries

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4 x 170 Ah/12 V

Starter

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24 V/2 x 8.4 kW

Alternator

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24 V/140 A

RPM adjustment

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brushless adjustment of engine output via

rpm selector

Hydraulic System

Hydraulic pump

for attachment and

travel drive

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3 Liebherr variable flow axial piston pumps

Max. flow

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3 x 435 l/min. / 3 x 115 gpm

Max. pressure

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350 bar/5,076 psi

Pump management

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electronically controlled pressure and flow

management with oil flow optimisation

Hydraulic pump

for swing drive

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1 Liebherr reversible swash plate pump,

closed-loop circuit

Max. flow

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420 l/min. / 111 gpm

Max. pressure

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380 bar/5,511 psi

Hydraulic tank

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1.000 l/264 gal

Hydraulic system

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1.400 l/370 gal

Hydraulic oil filter

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1 high pressure safety filter after each high

pressure pump + extra-fine filtration of

entire return flow with integrated by-pass

filtration (15/5 μm) + dedicated leak-oil

filtration

Hydraulic cooler

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1 separated cooler, temperature controlled

fan driven via 1 hydraulic piston motor

MODE selection

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adjustment of machine performance and

the hydraulics via a mode selector to match

application

ECO

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for economical operation (can be combined

with fuel optimized setting)

POWER

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for maximum digging power and heavy

duty jobs

Hydraulic Controls

Power distribution

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via monoblock control valves with

integrated primary relief valves and

secondary valves

Flow summation

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to attachment and travel drive

Closed-loop circuit

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for uppercarriage swing drive

Servo circuit

Attachment and

swing

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proportional via hydraulic joystick levers

Travel

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proportional via hydraulic pedals or

removable hand levers

Shovel flap functions

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proportional via hydraulic pedals

Electric System

Electric isolation

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easy accessible battery isolators

Working lights

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high brightness halogen lights:

– 2 on working attachment

– 1 on RHS of uppercarriage

– 1 on LHS of uppercarriage

Xenon or LED lights in option

Emergency stop switches

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in the cab/in option in engine compartment

Electrical wiring

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heavy duty execution in IP 65 standard for

operating conditions of – 50 °C to 100 °C/

– 58 °F to 212 °F

Swing Drive

Drive by

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2 Liebherr axial piston motors

Transmission

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2 Liebherr planetary reduction gears

Swing ring

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Liebherr, sealed single race ball bearing

swing ring, internal teeth

Swing speed

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0 – 6 rpm

Parking brake

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wet multi-disc brakes, spring applied,

hydrau lically released

Uppercarriage

Design

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torque resistant modular design upper

frame

Attachment mounting

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parallel length girders

Catwalks

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large catwalk on the left-hand side

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