Liebherr R 956 User Manual

Crawler Excavator R 956

Operating Weight with Backhoe Attachment:
Operating Weight with Shovel Attachment:
Engine Output: 240 kW / 326
Bucket Capacity: 1.25 – 3.30 m³
Shovel Capacity: 3.10 m³

49,600 – 57,100 kg
55,650 – 56,200 kg

HP

R 956

Operating Weight with Backhoe Attachment: 49,600 – 57,100 kg
Operating Weight with Shovel Attachment: 55,650 – 56,200 kg
Engine Output: 240 kW / 326 HP
Bucket Capacity: 1.25 – 3.30 m³
Shovel Capacity: 3.10 m³

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Performance

Responsive and precise, the R 956 crawler excavators al­low you to perform a large number of mass excavation tasks
in earthmoving sites or in quarries. Thanks to their tested
hydraulic design and their various work modes, Liebherr
excavators will always be there to satisfy your needs.

Reliability

Engineered for difficult operating conditions, the R 956
crawler excavators were designed to meet a list of specifi­cations resulting from our customer’s requirements.

Comfort

The new, more spacious operator’s cab provides the op­erator with a quiet working environment. What’s more, the
ergonomics, visibility and soundproofing have been im­proved for increased comfort.

Profitability

The raw performance amounts to maximum effective
working hours. These excavators allow you to target es­sential operations and reduce operating costs in order to
obtain the best return on investment.

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Liebherr Engine

•NewStage3B/Tier4iengine

•Designedspecicallyforconstructionapplications

•LiebherrCommonRailInjectionsystemwith

three times less load losses than a conventional
Common Rail system

•Automaticfuel-savingidlingsystem

•Two-stageturbochargingwithintercooler,

for increased power at low revs and reduced
fuel consumption

Performances

Responsive and precise, the R 956 crawler excavators allow you to perform a
large number of mass excavation tasks in earthmoving sites or in quarries. Thanks
to their tested hydraulic design and their various work modes, Liebherr excava­tors will always be there to satisfy your needs.

Technology serving productivity

Liebherr Integration

Regeneration Plus

Power and speed

Increased
break-out force

Faster cycles

All the major components aredesigned and man­ufactured within the Liebherr group. This includes
components such as the heat engine, hydraulic

pumps,electroniccomponents (injection mapping,

hydraulic control, control console) and of course the
essential mechanical elements including cylinders,
the slewing ring and work tools, resulting in an over­all increase in productivity.

The „Regeneration Plus“ function allows for the
accelerated lowering of the boom, reduced losses
of pressure and an improved work cycle. The opti­mization and combination of the „zero-pressure
lowering of the boom“ and „Regeneration plus“
functions, together with the increased power of
the hydraulics, provide increased performance and
lower consumption.

Thanks to their kinematics and hydraulic power, the
R 956 crawler excavators develop increased break­out and digging forces. The generously sized cyl­inders allow you to increase the break-out perfor­mance in hard materials.

The mechanical link between the rotation engine
and slewing ring gives the machine a high torque
and swing speed, thus improving your operating
cycles.

Choice of work mode

The different work modes offered allow you to adapt the power
of the excavator to the application

E Mode - Economy: for economical and ecologically-friendly
operation.Minorrestrictionofpowerwithoutaffectingtheload
lifting and excavating capacities. Highly recommended for light
and moderate working conditions

P Mode - Power: for high excavation capacities and difficult

applications.Pumpowandpowerarenotlimited

S Mode -Sensitivity:forprecisionjobsandloadingofmaterials.
Thepumpowandpowerarerestrictedtoattainoptimalsensitivity

P+ Mode - Full Power: especially designed for increased power;
only recommended for extreme applications

Floating Boom Function

•Increasedhydraulicowforthe
other cylinders (stick and/or bucket
for example)

•Morepoweravailable,makingiteasier

to extract materials and reduce work
cycle times

•Increasedservicelifewhenahydraulic

hammer is used

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Liebherr particle filter

•DesignedandmanufacturedbyLiebherr,it

eliminates more than 99% (VERT certification)
of fine particle emissions

•Activeregenerationoftheparticlelter,caus­ing no interruption to the operator and with­out reducing the machine’s performance

•Thecentralmodule(lterunit)isremovable

and easily accessible for maintenance

Reliability

Engineered for difficult operating conditions, the R 956 crawler excavators were
designed to meet a list of specifications resulting from our customer’s requirements.

Fully-tested strength

Improved and reinforced
undercarriage

With an X-shaped design and an increased slew­ing ring diameter, this new undercarriage is char­acterized by an even distribution of stresses over
the whole structure. This results in increased per­formance, greater load properties and an increased
service life.

Safe travel

The integration of 3 guiding guards per track as
standard significantly reduces the risk of tracks

comingoff.Inaddition,trackpinsandbearingsare

lubricated for life, which reduces both maintenance
tasks and down time.

Strengthened
uppercarriage

The uppercarriage has been reinforced with heavier

steel to ensure increased strength. The HD boom

and stick are standard - improving resistance to the
impact of materials. Similarly, the system of cast
and welded housings on the boom allows for an
improved distribution of stresses.

Quality serving safety

Finest details

The hydraulic, electric and lubrication lines are laid
out to ensure optimum operating safety and maxi­mum availability. The finish paint applied before
assembly and the appropriate surface treatment of
the components guarantee maximum protection
against corrosion. The integration of the rear camera
in the counter weight elegantly highlights the overall
perception of quality, safety and reliability.

Undercarriage

•Newdesignforincreasedlifeand
improved distribution of forces

•Linearslopebetweentheupperplateof

the central section and the track carriers
for constant cleaning

•Easyandsafetransportthanks
to integrated securing hooks

•3typesofundercarriageavailable,
including one with a variable gauge
for an accurate configuration to suit

thejobsiterequirements

ROPS cab structure

The cab is equipped with an integrated roll over
protection system (ROPS), pursuant to standard

ISO12117-2.

Key components developed by Liebherr

•Perfectharmonizationofthemachine
elements, designed specifically for
earthmoving and quarry applications

•Engine,hydraulicpumps,transferbox,

transmission, rotating mechanism, slewing
ring, cylinders and electronic components
are designed and manufactured by Liebherr

•Purposebuiltoptionssuchasspecialat­tachment lengths

•Specictoolsandcustomprotectioncan

be added at the factory

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Control screen

•7’’colortouchscreen

•Severalsetting,control

and surveillance options

•Robustandreliabledesign
(IngressProtectionRatingIP65)

•Compatiblehighresolution

video for displaying the rear
camera image

Comfort

The new, more spacious operator’s cab provides the operator with a tran­quil working environment. What’s more, the ergonomics, visibility and sound­proofing have been improved for increased comfort.

It’s just about feeling good

A spacious and ergo­nomic work station

Fully automatic
air-conditioning

High resolution
color touchscreen

A cab that’s easy
to look after

The cab offers a generous space for maximum com­fort. Equipped, among other things, with a pneu­matic seat with heater as standard (optional with air­conditioning), controls connected to the seat and
high-performance automatic air-conditioning, the
cab creates a pleasant working environment. All the
controls are precisely laid out in an intuitive manner
for greater responsiveness and concentration while
working. The cab is mounted on viscoelastic studs
for significantly lower vibration.

The automatic air-conditioning with touchscreen
controls has several ventilation outlets for optimum
ambient air in the cab.

The color touchscreen is a true human-machine
interface for controlling several comfort functions,
such as the radio, and more operational functions,
such as work modes, tool types and even the
backup camera.

The possibility of working in a clean environment

wasanimportantobjectiveinthedesignofthecab.
Itisparticularlyeasytomaintainthankstoelements

such as a keyboard with soft touch comfort keys
and an easily accessible cab air filter.

Heightened visibility

•Rearcameraintegratedinthecoun­terweight as standard, for rear visibility
and heightened operating safety

•Optimizeddesignofthewhole
uppercarriage providing the operator
with an improved field of vision

•Retractablelaminatedglassroofpanel

Joystick

•Sensitivejoystickwithproximityswitch

(controlled by approach of the opera­tor’s hand) for greater responsiveness
when resuming operations

•Proportionalergonomiccontrolfor
heightenedjobprecision

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Liebherr tools

•Widerangeoftoolssuitableforevery

type of application

•Toolsdesignedformaximum
productivity and durability

•Shapeofbucketsdesignedtoassist

the filling and stability of bulky materials
during the transport stages

•Hydraulicquickcouplersystem

Profitability

The raw performance amounts to maximum effective working hours. These
excavators allow you to target essential operations and reduce operating costs
in order to obtain the best return on investment.

The best choice

Low operating costs

LiDAT fleet and machine
park management tool

Liebherr-Service

An excellent after-sales
service

Thanks to its high technology and its innovation,
the Liebherr France Company increases the per­formance of its machines while reducing their fuel
consumption. Examples of this are the new diesel
engine, automatic idling, electronic engine speed
sensing control, Regeneration Plus function and the
hydrostatic cooling system (fans operate only when
necessary). Consequently, the reduced fuel con­sumption means less pollution.

To improve your machine management, Liebherr
has developed its own data transmission system
using the GPRS network. This system allows you
to instantly know the position of your excavator
via a web interface. Thanks to data transmission,

theLIDATsystemdevelopedandmanufacturedby

Liebherr keeps you informed about fuel consump-

tion,numberofservicehoursormachinefaults,just
tonameafew.LIDATallowsyoutobeproactiveand

more responsive: organizing and maintaining your

eetforincreasedproductivity.

The after-sales services can be customized to suit
and respond to your specific needs. Several pro-

grams,suchasReMan,ReBuiltandRepairprovide

the perfect, economical solution, always including
the manufacturer’s quality and guarantee. A team
of technicians, specialized to intervene on your
machines, has all the latest-generation diagnostic
tools, for a reduced down time of the machine. By
following your chosen maintenance program, you
will also obtain a higher resale price.

Liebherr lubricants

•Completerangeoflubricantsand

coolants for your Liebherr engines

•Specialservicewithproductspe­cialists available to listen to and
advise you

Maintenance

•Automaticcentralizedlubricationas

standard for regular lubrication of criti­cal points and reduced machine down
times accurate lubrication for cutting
costs and increasing the service life of
the elements

•Hydraulictankshutoffvalveforeasily

and quickly cutting off the hydraulic
circuit: complete drainage not required
if it is necessary to repair the system

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R 956 Backhoe –
Experience Progress

Visibility

•Rearcameraintegratedinthecounterweight

• Two boom-mounted lights - standard

• Optimized design of the whole uppercarriage pro-

viding the operator with a better field of vision

Automatic centralized
lubrication - standard

•Reduced maintenance time

• Longer service life thanks

to better lubrication

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Undercarriage

•RobuststructurethankstotheX-shapedprole

•Improvedself-cleaningcapacity

• Special heat treatment for low wear and tear of drive sprockets

• 3 types of undercarriage available, including a variable gauge one

• 3 guiding guards per track - standard