LTM 1090-4.1Mobile craneMax. lifting capacity: 90 tMax. lifting height: 75 mMax. working radius: 62 m

LTM 1090-4.12

Mobile crane LTM 1090-4.1Strong and flexible

LTM 1090-4.1 3

A long telescopic boom, high capacities, an extraordinary mobility as well as a comprehensive comfort and safety configuration distinguish the mobile crane LTM 1090-4.1 from Liebherr. The 90-ton crane offers state-of-the-art technology for more convenience for the practical operation.

•50mlongtelescopicboom•19mlongdoubleswing-awayjib,optionalhydraulicallyadjustable•75mhookheightwithtelescopicboomextensionandswing-awayjib•Extremelycompactdimensionsandgreatestmanoeuvrabilityinitsclass•Superstructureenginematchedtobestpossibleeffecttothecraneoperation•Active,speeddependingrearaxlesteering•Airoperateddiskbrakes•48-toverallweight,incl.6.7-tballastat12-taxleload

LTM 1090-4.14

Drivetrain

•6-cylinderLiebherrturbo-dieselen-gine,350kW/476hp,max.torque:2220 Nm

•AutomatedZFAS-TRONICgearbox,12 forward and 2 reverse speeds

•ZFintarderdirectlyatthegearbox

•Axles2,3and4driven,axleoneasoption

LTM 1090-4.1 5

2310

2750

4080

5007

7009

3955

8587S2522.02

8510

12660

129003690

10630

20° 17°

R=8330R=9240

R=9700

State-of-the-art chassis and drive technology

Hydro-pneumaticsuspension Niveaumatik

•Maintenance-freesuspension cylinders

•Largedimensionstocopewithhighaxle loads

•Suspensiontravel:+150/-100mm

•Highlateralstabilitywhencornering

•Choiceofdrivingstateusingfixedprogrammes

Pneumaticdiscbrakes

•Highbrakingpower,improvedcontrol

•Improveddirectionalstability

•Noreductioninbrakingforceathighbraking-temperatures (fading)

•Longerlife

•Shorterlabourtimesforchangingthe screening surfaces

•Brakepadswithwearindicators

High mobility and cost effectiveness

Apowerful6-cylinderLiebherrturbo-dieselenginewith350kW/476hpensuresswiftdrivingperformance.Theautomatic12-speedpowershiftsystemZF-AS-TRONICwithintarderprovidesahighlevelofcosteffectivenessandexcellentcomfort.

•Reducedfuelconsumptionthroughlargenumberofgearsandtheefficiencyof the dry coupling

•Excellentmanoeuvrabilityandminimumcrawlingspeeddueto2-stagetransfer case

•ABV–automaticblockingpreventerwithASRanti-slipcontrol

•Wear-freebrakingwithZFintarder

•Telmaeddycurrentbrakeoptional,wearfreeandcomfortable

Compact, agile and weight-optimised

Thanks to its extremely compact design, the LTM 1090-4.1 can operate on the smallest of construction sites.

•Chassislengthonly10.63m

•Smallestturning-circleradiusonly8.33m

•Vehiclewidthonly2.75m

•Ballastradiusonly3.69mupto17tballast,3.80mwithfullballast

LTM 1090-4.16

5 steering programmes

•Programmeselectionbysimplepush button

•Cleararrangementofthecontrolelements and displays

•Programmeschangeableduringdriving

•Crabsteeringcontrolledcomfort-ably by the steering wheel

LTM 1090-4.1 7

Variable steering concept

Active rear axle steering

The rear axles are electro-hydraulically actively steered depending on the speed andthesteeringangleofthefrontaxles.5steeringprogrammes(P)areprese-lectable by push button.

•Distinctreductionofthetyrewear

•Improvementofthemanoeuvrability

•Stabledrivingperformancealsoathighspeeds

•All4axlessteerable

High safety standards – complete know-how from Liebherr

•Centringcylindersforautomaticstraighteningoftherearaxlesincase of failure

•Twoindependenthydrauliccircuitswithwheeldrivenandmotordriven hydraulic pumps

•Twoindependentsteeringcomputers

P1Roadsteering

The axles 1 and 2 are mechanically steered by the steering wheel. The axle 4 is actively steered depending on the speed and on the steering angle of the frontaxle.From30km/hitwillbead-justed to straight driving and fixed. Axle 3 is none steered for road driving.

P2All-wheelsteering

The axles 3 and 4 are turned by the steering wheel depending on the steering angle of the front axle to provide for the smallest turning radius.

P3Crabsteering

The axles 3 and 4 are turned by the steer-ing wheel to the same direction as the steering position of axle 1 and 2.

P4Reducedswingout

The axles 3 and 4 are turned depending on the wheel turn of the front axles to minimize the back swing of the rear of the chassis.

P5 Independent rear axle steering

The axles 1 and 2 are steered by the steering wheel, the axles 3 and 4 are steered by push buttons independently from the steering angle of the axles 1 and 2

Centring cylinder at the rear axles

•Automaticstraightpositioningofthe rear axles in case of failure

LTM 1090-4.18

Thedriver’scab

•Corrosion-resistant

•Electricwindowwinders

•Safetyglassonallsides

•Tintedglass

•Heatedandelectronicallyadjustableoutside mirrors

•Air-sprungdriver’sseatwithlumbarsupport

LTM 1090-4.1 9

700

Modern driving cab and crane cab

The modern driving cab as well as the backwards tiltable crane cab offer a com-fortable and functional working place. The control elements and displays are arranged according to ergonometric factors. Thus a safe and wear free working is assured.

Fast and safe erection

The supporting, the counterweight assembly as well as the mounting of the ad-ditionalequipmentaredesignedforspeed,safetyandcomfort.Forthesafetyoftheoperator’spedestals,handholdsandrailingsareprovided.

Comfort and functionality

Thecranecab

•Largefieldofvision

•Tintedwindows,frontscreencanbeopened

•Cranedriver’sseatwithlumbarsupport,multiply adjustable

•Heatandnoiseinsulatedinteriorcladding

•Sidewiseextendablerunningboard

•Corrosionresistant

•Workingfloodlight

•Canbetilted20°backwards

Crane supporting – fast,comfortableandsafe

•BTT-BluetoothTerminal,mobile control and display unit

•Electroniclevellingdisplay

•Fullyautomaticlevelling by push button

•Engine-start/stopand speed regulation

•Lightingofsupportareawith 4integratedfloodlights

•Strokeofsupporting cylindersfront650mm,rear 700 mm

•Outriggers1-stage,fullyhydraulic, low mainte-nance extending system

LTM 1090-4.110

The fully automatic telescoping system „TELEMATIK“

•Greaterliftingcapacitieswithlongerboomsand larger radii thanks to ‚light‘ telescoping system

•One-stagehydrauliccylinderwithhydrauli-cally operated drive pin

•Maintenance-freetelescopingsystem

•Fullyautomatictelescoping

•Easiestcontrolandmonitoringoftelescop-ingactiononLICCONscreen

2.6mlongassemblyjib

LTM 1090-4.1 11

Roostersheave,foldablesidewise

Hydraulicassistanceforassemblyoftheswing-awayjibwithBTT

High lifting capacities and flexible boom system

Powerful, long telescopic boom and functionallattice extensions

The telescopic boom consists of the base section and 5 telescopic sections, which can be comfortably and automatically extended and pinned to the re-questedlengthbythethousandfoldprovensinglecylindertelescopingsystemTELEMATIK.

•50mlongtelescopicboom

•10.5m–19mlongdoubleswing-awayjib,attachableat0°,20°and40°

•Hydraulicadjustmentoftheswing-awayjibatfullloadfrom0°to40°(op-tional), interpolation of capacities

•Hydraulicassistanceforassemblyoftheswing-awayjibwithBTT

•7msectionforextendingthetelescopicboomforoperationwith swing-away jib

High capacities with full counterweight as wellas with partial counterweight offer a wideapplication of operations

•Highlateralstabilityduetotheovalboomprofile

•Optimizedcapacitiesduetothenumerousextensionvariations

•Capacity9tat50mlongtelescopicboom

High capacities at unpinned telescopic lengths

•Hightelescopablecapacitiesduetointerpolation

•Separatechartsforholdingoftheloadatunpinnedtelescopiclengths

•DisplayatLICCONmonitor

Holding capacity

Unpinned telescopic length

Telescopablecapacity

20°

40°

0

4

8

12

16

20

24

28

32

36

40

44

48

52

56

60

64 m

12LTM 1090-4.1

Hydraulicallyadjustablefoldingjib(0°to40°)

Hose reel for the hydraulic cylinder

Hydraulic folding jib

13 LTM 1090-4.1

12 t 12 t 12 t 12 t

Ballast assembly – in a matter of minutes

•Multipleballastvariationsfrom6.7tto21t

•Rapidballastingwithkeyholetechnologyfromwithinthecranecab

•Compactballastdimensions:witha17-tballast,theballastwidthis only2.65m

•Ballastradius:only3.69mupto17tballast,3.80mwithfullballast

•48-ttotalweightincl.6.7-tballastat12-taxleload

Basicballast 6.7t

Additional ballast 14.3 t

Total 21.0t

Variable counterweight

0.7 t

1.8t

2.6t

2.0 t

3.85t

1.5 t

2.7 t

2.0 t

3.85t

LTM 1090-4.114

The hoist gear

•Liebherrhoistwinchwithinternal planetary gear and spring-loaded multi-disk brake

•Ropepull57kNattheouterlayer

•Max.ropespeed125m/min

•2.hoistgearoptional

LTM 1090-4.1 15

The slewing gear

•Liebherrplanetarygearbox, spring-loaded multi-disk brake

•Reversibleopenorhydraulicallylocked as standard

•Slewingspeedfrom0–1.7rpminfinitively variable

The central greasing

•Standardcentralgreasingdevicefor slewing bearing, boom bearing, luffing cylinder and winch bearing

•Evensupplyofgrease

•Fillingquantityvisibleatanytimein transparent reservoir

High-power crane drive

With tried-and-tested components

The drive components for crane operation are constructed for high performance and ensure sensitive and precise load handling. They are specially designed to suitthecrane’susageandhavebeensubjectedtohardendurancetests.

•Craneengine:four-cylinderLiebherrturbo-dieselengine,129kW/175hp, 815Nmmax.torque,optimisedfuelconsumptionthankstoelectronicenginemanagement

•Diesel-hydrauliccranedrive,openoilcircuitswithelectricLOADSENSINGcontrol, 4 simultaneous working motions possible

•Electric/electronicSPScranecontrolviaLICCONcomputersystem

•Slewinggearcanbeswitchedasstandard:releasedorhydraulicallylocked.The movement can thus be optimally adapted to the different operating requirements,e.g.sensitiveassemblyworkorrapidworkcycles

•Self-manufacturedLiebherrwinches,57kNlinepullattheouterlayer, greater line pull means less rope reeving is needed

LICCONmonitor

Controlsensorwithtouchdisplays

Controlunit

Telescopingcylinder

Luffing cylinder

Controlblock

Hoistgear Slewinggear

Geartypepump

Variabledisplacementpump

Liebherrdiesel engine

Sensor

LTM 1090-4.116

TheLICCONtestsystem

•Rapidlocalisationofproblemswithoutany other measuring instruments

•Errorcodeanddescriptiondisplayed

•Convenientinteractivefunctionsformonitoring all inputs and outputs

•Displaysfunctionsandallocationofsensors and actuators

LTM 1090-4.1 17

TheLICCONworkarealimitationsystem (optional)

•Makesthecraneoperator’sjobeasierbyautomatically monitoring workspace restric-tions such as bridges, roofs, etc.

•Simpleprogramming

•Fourdifferentlimitationfunctions: -Pulley-headheightlimitation -Radiuslimitation -Slewinganglelimitation -Edgelimitation

TheLICCONworkplanner

•Computerprogrammeforplanning,simulating and documenting crane operationsonaPC

•Representationofallthecrane’sloadcharts

•Automaticsearchforsuitablecranebased on load, radius and lifting height parameters

•Simulationofcraneoperationswithoutline functions and supporting force display

Intelligent crane control

For functional and safe crane operation:the LICCON computer system

The soft and hardware of the mobile crane control is developed by Liebherr in-house.ThecentreistheLICCONcomputersystem(LiebherrComputedControl).

•IntegratedLMLloadmomentlimiter

•Keycomponentsarein-housemanufacturedbyLiebherr

•Guaranteedsparepartsavailability

•Worldwideprovenunderthemostdifferentclimateconditions

•Operatorfriendly

The second control generation LICCON2 is the result of a continuous development by the Liebherr specialists and enables the adaption to the con- stantly increasing demands of the markets due to its modern and future oriented control.

The data bus technology

Liebherr mobile cranes are completely interlaced by the data bus system. All important electric and electronic components are equippedwith ownmicro-processorsandcommunicatewitheachotherbyonlylimiteddatacables.Forthe special demands of the mobile crane Liebherr has developed own data bus systems (LSB-Liebherr-System-Bus).Thedatabus technology improves thereliability,thecomfortandthesafetyforroaddrivingandcraneoperation:

•Higherreliabilityduetoremarkablelesserelectriccablesandcontacts

•Continuousselftestingofthe„intelligentsensors“

•Comprehensivediagnosispossibilities,fastfaultfinding

Liebherr-WerkEhingenGmbHPostfach1361,89582Ehingen,Germany+497391502-0,Fax+497391502-3399www.liebherr.com,E-Mail:info.lwe@liebherr.com

PN207.00.E02.2012 Thepicturescontainalsoaccessoriesandspecialequipmentnotincludedinthestandardscopeofdelivery.Subjecttomodification

LICCON2 – safe and comfortable

Colour monitor

The readability of the data on the monitor of the LICCON2controlsysteminthe crane cab is enhanced by the colour display. Warn-ings and crane utilization are considerably better recog-nized.

Wireless remote control (option)

All crane motions can be controlled outside of the cab.

•Higherefficiency

•Freeviewandclosenesstotheload

•Preventionofcommunicationerrorsbetween the crane driver and the job site personnel

Attaching and detaching of the hook block

TheBTT–BluetoothTerminaloffersthecranedriverthepossibility to attach or detach the hook block at the front of the vehicle within sight, as the hoist winch and the luff-ing cylinder of the telescopic boom are remote controlled.

Touch displays

Belowthejoysticksintegrat-ed in the armrests the touch displays are installed, with which the various operational functions can be selected. These are beside others the drive and steering programs of the chassis, the axle sus-pension, the supporting of the crane, the adjustment of theworkingfloodlightsaswell as heater and air condi-tion controls.

Crane support

ByuseoftheBTTthemobilecranewillbe setup comfortably and safely. En-gine start/stop and speed regulation, electronic inclination display and auto-maticlevellingarestandard.OptionallytheBTTcanalsodisplaytheoutriggerforces.Wireless remote control