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1、-1J;.ISRlA利JiiiMarr,Powerful.r-s.耳*Reliable_rfii.,-_鼻豪ProvenhighperformanceComfortandsafetyVolvoExcavatorsaredesignedfortheworldwidemarket.TheadvancedtechnologyincorporatedintoeveryVolvoexcavatorworksbehindthescenes.Itisinvisibletotheoperator,withthenetresultbeing,amachinewithincrediblepower,smoothn
2、ess,versatilityandsimplicity.ILHighperformanceandproductivityThefirstcriticalingredientforperformanceandproductivityisenginehorsepower.ThedieselenginesinVolvoexcavatorshaveamongthehighesthorsepowerratingsintheirsizeclasses.VolvoExcavatorsusetheprovenandreliableCumminsdieselenginesinallmodelsofourexc
3、avators,whicharerecognizedworldwidefortheirefficiencyanddurability.Thesecondcriticalingredientishydraulicoilflow.ThemaximumhydraulicoilflowratingsonVolvoexcavatorsareamongthehighestintheirrespectivesizeclassesalso.controlsystem.Ithasfivepowermodeselectionsavailablewith10differentareautomatic.Therear
4、enoswitchestoactivate.Themachine“knows”whattodoHydraulicsystemengineRPMsettings.Thepowermodes,“H”,“G”,“F”,and“I”aresuitableformanydifferentjobsiteconditions,andifyouneedmaximumenginepower,selectthenew“PowerMaxmode”,andyouwillhaveaccesstothehighestproductionavailablefromthenewVolvoexcavators.Fortough
5、jobs,whenextrapowerisneeded,operatorshaveaconvenientPowerBoostModeavailable.Powerboostraisesthemainreliefpressurefortheboom,arm,andbucketcircuitsto350barfornineseconds.Thisallowstheoperatortogetthejobdonewithoutslowingdowntheworkcycle.Itissimpleandefficient.ACSevenfeaturesaself-diagnosticsystemthata
6、utomaticallychecksthemachinesvitalfunctions.Iftherearemalfunctions,theoperatorinstantlyknowsbasedonthejoystickmovementsoftheoperator.Themainhydrauliccontrolvalveassemblyhasbeendesignedspecificallyforourexcavators.Itsmulti-functionaldesign,withtwoseparatevalvebanks,makesitpossibletoperformavarietyofo
7、perationssimultaneously.TheVolvohydraulicsystemhasmanyotherhightechfeaturesalso.Thereisa“standard”auxiliarycontrolvalvespoolforquickinstallationoffactoryorafter-marketequipment.Anautomatic,2-speedtravelfunctionadjuststravelspeedandtractiveforcestoterrainconditions.Thestraighttravelfunctionletsyouope
8、ratetheboom,armorbucketcircuitswhiletravellingwithoutworryingabouttraveldrift.OperatorcomfortThelargecabdooropenswidetoallowtheoperatortoenterthecabeasily.Well-placedstepsandhandrailsfacilitateasafeentranceandexit.Goodall-roundvisibilityisobtainedthroughlarge,laminatedcabwindows.Theclearroofhatchand
9、slidingrearwindowprovidetheoperatorwithexceptionalcomfortandvisibility.Footrestsarerightwhereyouneedthem.Eventhetravelpedalshavebeenfittedwithdampeningvalvesforsuperiorsmoothnessandsensitivityduringoperation.Thenewheatedseathasbothspringsuspensionandshockabsorption,with8differentadjustmentspossible.
10、Well-placedadjustmentcontrolsareeasytounderstandanduse.Thebackrestandarmrestsadapteasilytotheoperatorssizeandweight.Anadditionaloperatorcomfortitemavailableincludesanairsuspensionsystemfortheseat.Highqualitysoundabsorptionmaterialsinsidethecabandenginecompartmentreducesoundlevelstoaminimum.Anotherst
11、andardfeatureisthelargestoragearea,locatedbehindtheoperatorsseat,whichprovidesroomformanualsandtheoperatorslunch.CabandoperatorprotectionsystemsavailablefortheVolvoexcavatorsincludeFOGS(FallingObjectGuards),FOPS(FallingObjectProtection),safetymeshesforthefrontwindow,aswellasvandalismprotectionguards
12、.Service&maintenanceManyofthediagnosticsarerightinfrontoftheoperatorwithinthecab.Abatterydisconnectswitch,locatedinthebatterycompartment,preventsunauthorizedpersonnelfromstartingtheengine.DiggingequipmentVolvomanufacturesitsownhydrauliccylinders,withbuilt-incushions,toinsurelonglifeandsmoothoperatio
13、n.Over-sizedcylinderbushingspracticallyeliminateplay,whichmeanslowermaintenancecosts.Booms,arms,andotherstructuralcomponentsareallprecision-weldedusingstateoftheartroboticstoensureconsistentqualityanddurability.Inaddition,well-placedsteps&handrails,aswellasnon-slippunchedplatewalkareaspromotesafety.
14、AnotherVolvoexclusiveistheExcalieversystemanalyzer,whichgivesservicetechniciansdetaileddiagnosticsysteminformationforquickonsiteservice.Thein-linehydrauliccoolerforEC290canbetiltedout,whichincreasesaccessibility,andthereforemakescleaningeasier.Withtheenvironmentinmind,theengineoilpanhasbeenequippedwithaquickcouplerthatallowsadrainhosetobeeasilyconnected.Remotegreasingpointsfortheboomandarmaregroupedtogetherforoperatorconvenience.Thesecentralizedlubricationpointscanreduceoverallmaintenancetime.Bucketpinsaredoublesealedtokeepgreaseinandwateranddirtout.Volvoprovidesawiderangeofboomanda
