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Product:BACKHOELOADER
Model:428BBACKHOELOADER7EJ
Configuration:428BBACKHOELOADER7EJ00001-05999(MACHINE)POWEREDBY3054DIESELENGINE
OperationandMaintenanceManual
CaterpillarFiltersRecommendations
MediaNumber-SEBU9208-00PublicationDate-01/02/2018DateUpdated-13/12/2013
Foreword
SMCS-7566
Fluids/FiltersRecommendation
LiteratureInformation
Thismanualshouldbestoredintheliteratureholderorintheliteraturestorageareaonthemachine. Immediatelyreplacethismanualiflost,damaged,orunreadable.
Theinformationcontainedinthisdocumentisthemostcurrentinformationavailableforfluid maintenanceandserviceproducts.Specialmaintenanceandserviceproductsmayberequiredfor somemachinecompartments.RefertotheOperationandMaintenanceManualforyourmachinefor themaintenanceandservicerequirements.Read,study,andkeepthismanualwiththeproduct.This manualshouldbereadcarefullybeforeusingthisproductforthefirsttimeandbeforeperforming maintenance.
Wheneveraquestionarisesregardingyourproduct,orthispublication,consultyourdealerforthe latestavailableinformation.
Safety
RefertotheOperationandMaintenanceManualforyourmachineforallsafetyinformation.Read andunderstandthebasicsafetyprecautionslistedintheSafetySection.Inadditiontosafety precautions,thissectionidentifiesthetextandlocationsofwarningsignsusedonthemachine.
ReadandunderstandtheapplicableprecautionslistedintheMaintenanceandOperationSections beforeoperatingorperforminglubrication,maintenance,andrepaironthismachine.
Maintenance
RefertotheOperationandMaintenanceManualforyourmachinetodetermineallmaintenance requirements.
Propermaintenanceandrepairareessentialtokeeptheequipmentandsystemsoperatingcorrectly. Astheowner,youareresponsiblefortheperformanceoftherequiredmaintenancelistedinthe OwnerManual,OperationandMaintenanceManual,andServiceManual.
MaintenanceIntervalSchedule
UsetheMaintenanceIntervalScheduleintheOperationandMaintenanceManualforyourmachine todetermineservicingintervals.Usetheservicehourmetertodetermineservicingintervals.Calendar intervalsshown(daily,weekly,monthly,etc.)canbeusedinsteadofservicehourmeterintervalsif calendarintervalsprovidemoreconvenientservicingschedulesandapproximatetheindicatedservice hourmeterreading.Recommendedserviceshouldalwaysbeperformedattheintervalthatoccurs first.
Underextremelysevere,dusty,orwetoperatingconditions,morefrequentlubricationand/orfilter changesthanisspecifiedinthemaintenanceintervalschartmightbenecessary.
Followingtherecommendedmaintenanceintervalsreducestheriskofexcessivewearandpotential failuresofcomponents.
AftermarketProductsandWarranty
NOTICE
Whenauxiliarydevices,accessoriesorconsumables(filters,oil, additives,catalysts,fuel,etc.)madebyothermanufacturersareused onCatproducts,theCaterpillarwarrantyisnotaffectedsimply becauseofsuchuse.Failuresthatresultfromtheinstallationorusage ofothermanufacturersauxiliarydevices,accessoriesorconsumables, however,arenotCaterpillarfactorydefectsandthereforeareNOT coveredbyCaterpillar'swarranty.
Caterpillarisnotinapositiontoevaluatethemanyauxiliarydevices, accessoriesorconsumablespromotedbyothermanufacturersand theireffectonCatproducts.Installationoruseofsuchitemsisatthe discretionofthecustomerwhoassumesALLrisksfortheeffectsthat resultfromthisusage.
Furthermore,Caterpillardoesnotauthorizetheuseofitstradename, trademark,orlogoinamannerwhichimpliesourendorsementof theseaftermarketproducts.
Copyright1993-2021CaterpillarInc.
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Product:BACKHOELOADER
Model:428BBACKHOELOADER7EJ
Configuration:428BBACKHOELOADER7EJ00001-05999(MACHINE)POWEREDBY3054DIESELENGINE OperationandMaintenanceManual
MediaNumber-SEBU9208-00PublicationDate-01/02/2018DateUpdated-13/12/2013
Breathers
SMCS-1054
i05539931
Breathersareusedonmachinefluidtanksandonbulkfluidstoragetanks.Breathersaredesignedand sizedtoequalizethepressuredifferentialsbetweentheinsideofthetankandtheoutsideatmosphere. Theyieldstrengthofthefluidtanksisalsooneofthedesigncriteriaforbreathers.
Athightemperatures,fluidsmayexpandandcreatepressureinsidetanks.Breathersallowtheexcess gastoflowfromthetanktotheoutside,whichrelievespressurebuildup.Similarly,atlow temperatures,pressureinsidetanksmaydecreaseandcreateavacuuminthetank.Breathersinthis caseallowtheingressionofexternalairtopreventtankcollapseandatthesametimefilterthe incomingairtokeepthefluidclean.Breathersarealsousedtocompensateforvolumechangesinthe tank.Forexample,inhydraulicsystems,whensignificantchangeofthelengthofhydrauliccylinders occursquicklythechangecausesasuddensurgeofoilflowintothehydraulictank.Thissuddenflow ofoilpressurizestheairinthetank.Breathersallowthepressurizedairtoescapefromthetank, equalizethepressure,andavoiddamageofthetank.Breathersaredesignedbasedonthetanksizeto allowtheappropriatevolumeofgasflowinordertoprotecttanks.Breatherdesignisalsobasedon therateofflowandthetankyieldstrength.
Mostbreathersmayhaveanintegralfilterelementoraseparateserviceablefilterelement.Filter elementsinbreatherspreventtheingressionofdirtastheairmovesintothetank.Filterelementsalso preventthemovementoffluidssuchasfuelsoroilsfromthetanksandintotheatmosphere,which reducescontamination.
Ingeneral,breatherswithfilterelementsarerecommendedforallfluidtanks.Breatherswithfilter elementsarespecificallyrecommendedforuseonfueltanks,whetherbulkormachinetanks.Afour micronfilterratingisrecommendedforthesebreatherstokeepthefuelsclean.
Somebreatherdesignsrequiretheservicingofthefilterelementonly,whileotherdesignsrequirethe servicingoftheentirebreather.FollowtheinstructionsgiveninyourOperationandMaintenance Manualforbreatherserviceliferecommendations.ConsultyourCatdealerforavailabilityof breathersforyourapplications.
Product:BACKHOELOADER
Model:428BBACKHOELOADER7EJ
Configuration:428BBACKHOELOADER7EJ00001-05999(MACHINE)POWEREDBY3054DIESELENGINE OperationandMaintenanceManual
MediaNumber-SEBU9208-00PublicationDate-01/02/2018DateUpdated-13/12/2013
BulkFiltration
SMCS-108K;1261;1308;5068
i05539995
Bulkfiltrationisalargefiltrationunitthatisusedwithexternalfuelstoragetankssuchasthoseused tofuelworksites.Bulkfiltrationisdesignedtoremovecontaminationandwaterfromlargevolumes offuelinonepass.Bulkfilterunitsareplacedinthefuelsupplylinebetweenfuelstoragetankand fuelingstation.Properstoragetanksettlinganddrainingpracticesremoveportionsofdirtandwaterin thefuel.Bulkfiltrationremovestherestofthedirtandwaterandensuresthatthefuelreachesthe fuelingstationatthepropercleanlinesslevel.
Bulkfiltrationunitsaretypicallymadeoftwounits.Theunitsareconnectedwithpropershutoff valvesandpressuregaugesthatallowpropermaintenanceandensurethatthefuelispassingthrough freeofwater.Thetwounitsare:
ParticulateFilter-AlargecapacityUltraHighEfficiencyfilterunitthatremovesdirtfromthefuel.
CoalescerUnit-ACoalescerunitthatremoveswaterfromthecleanfuel.Typicallythecoalescer unitismadeofmultiplecoalescingfilterelementsthatcanremovethewaterefficientlyandquickly fromthecleanfuel.Theseparatedwatercanbedrainedasneeded.
Bulkfilterunitscanbecustomengineeredtomeettheneedsofthecustomerfuelingsite.
Caterpillaroffersspeciallydesignedbulkfiltrationunitsinfourdifferentcapacities:
•50GallonsperMinute
•100GallonsperMinute
•200GallonsperMinute
•300GallonsperMinute
EachCatbulkfiltrationunitismountedonaskid,selfcontained,requiresnoelectricpower,andhas thefollowingfeatures:
•4micronabsoluteparticularfilter
•150psimaximumpressurecapability
•Filterdeltapressureindicator
•Watercoalescerwiththecapabilitytoremove3%continuouswaterinfuel.Thefuelpassing throughthecoalescercontainslessthan100ppmwaterbyvolume.
•Automaticslugcontrolvalvetoshutoffsupplyiflargequantitiesofwaterinthefuelexceed theautomaticdraincapacity,oriftheparticulatefiltersstarttoplug.Thisvalveensuresthat debrisandwaterarenotallowedtopassintothemachine.
Note:Thecostofbulkfilterunitsissignificantupfront,butbulkunitsaremoreeconomical,less laborintensiveandmorereliablethaninstallingandmaintainingadditionalfiltrationunitsoneach machineinafleet.Thefiltercoalescerunitensuresthatonlycleanfuelentersthefueltankofthe machineorengine.Ifbulkfiltrationisused,thestandardfiltrationonthemachineisadequateto providefuelfiltration.
Copyright1993-2021CaterpillarInc.
AllRightsReserved. PrivateNetworkForSISLicensees.
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Product:BACKHOELOADER
Model:428BBACKHOELOADER7EJ
Configuration:428BBACKHOELOADER7EJ00001-05999(MACHINE)POWEREDBY3054DIESELENGINE
OperationandMaintenanceManual
MediaNumber-SEBU9208-00PublicationDate-01/02/2018DateUpdated-13/12/2013
CabAirFilters
SMCS-7342
i05540350
Thepurposeofacabinairfilteristocleantheaircomingintothecab.Therearetypicallytwocabin airfilters,afreshairfilterandarecirculationfilter.Thefreshairfiltercleanstheoutsideairpriorto enteringthecab.Therecirculationfiltercleanstheairthatisinsidethecab.Cabinairfiltershelpto protectthecabheatingandcoolingsystemfromdirtanddebris.Cabinairfiltersalsohelpwith operatorwell-beingbyprovidingcleanairwithinthecab.Thecabinairfiltershelptocreatea comfortableworkingenvironmentfortheoperator.
Note:Cabinairfiltersarenotforuseinfilteringhazardousmaterials.
Cabinairfiltersaredesignedspecificallyfortheapplicationinordertosupplytheproperairflowto thecab.ConsultyourCatdealerforthespecificcabinairfilterthatisdesignedforyourmachine.Do notsubstituteanyothercabinairfilter.
Note:Cabinairfiltersthatarenotdesignedfortheairflowandapplicationcandamagethecab heatingandcoolingsystemcausingpoorperformance.ConsultyourCatdealerforthespecificcabin airfilterthatisdesignedforyourmachineanddonotsubstituteanyothercabinairfilter.
High-qualitycabinairfiltersystemshavethefollowingcharacteristics:
•Allowtheappropriatevolumeofcleanairtothecab
•Designedwiththecapacityfortheintendedlifeandmaintenanceintervals
•Withstandthevibrationsexpectedinthemachineandapplication
•Effectivelycleantheairtoprotectthecabheatingandcoolingcomponents
•Createacleanerandmorecomfortableworkingenvironmentfortheoperator
•Allowforeaseofserviceability
Note:Cabinairfiltersforoff-roadmachineshavetoberobustandofferdesiredlifeandperformance underdemandingconditions.Off-roadmachinestypicallyexperiencehighvibration,highimpacts, anddustyenvironments.Thecabinairfilterelementsusedinoff-roadapplicationshavetoofferhigh dirtholdingcapacityinordertoprotectthecabheatingandcoolingsystemforthedesignedservice lifeofthefilter.Useofinferiorqualityfiltersoruseoffiltersotherthanthefiltersrecommendedfor yourmachinemaycausepoorperformanceanddamagetothecabheatingandcoolingsystem.
CatcabinairfiltersaredesignedforoptimalfitandperformanceintoallCatmachines.Thesefilters aredevelopedusinghigh-qualitymaterials,alongwithprecisedesignsanddimensions.Thesefilters offerthebestcapacity,leveloffiltration,andservicelifeneededforallCatmachinesandforall conditionsofoperation.
Cabinairfiltersareselectedbasedontheairflowrequirementsofthecab.Thefollowingarethemain componentsfordesigningacabinairfilterfortheapplication.
CabAirFlow-Airflowneededforappropriatecabpressurization,aswellasheatingandcooling. Cabairflowistypicallyexpressedincubicfeetperminute(cfm),cubicmetersperminute(m3/min), orkilogramsperhour(kg/hr).
InitialandFinalRestriction-Airrestrictionlimitneededtoensurecontinuousflowofappropriate volumethroughouttheservicelifeofthefilter.Initialrestrictionismeasuredwithacleanfilter.Final restrictionismeasuredwithafullyloadeddirtyfilter.Restrictionistypicallyexpressedininchesof water(inH2O)orkilopascals(kPa).
DustConcentration-Amountofdirt,dust,andcontaminationexpectedintheapplication environment.Dustconcentrationistypicallyexpressedingramspermetercubed(g/m3).
Mounting-Availablespacetolocatethecabinairfilterproperly,whileconsideringthevibrations expectedduringoperationofthemachine.
ServiceInterval-Expectedfrequencyofdirtyfilterreplacement.Theserviceintervalistypically expressedinhours(hrs).
CabinAirFilterOptions
Standard
StandardefficiencycabinairfiltersareavailableforallCatequipmentmodels.Standardefficiency cabinairfiltersarerecommendedfornormaldutyfiltration.Standardefficiencymediaisdesignedto preventdirt,soot,sand,andothercontaminatesfromenteringthecabundernormaloperating conditions.
HighEfficiency
HighefficiencycabinairfiltersareavailableforsomeCatequipmentmodels.Highefficiencycabin airfiltersarerecommendedforextremelydustyenvironments.Highefficiencycabinairfiltershavea higherinitialandoverallefficiencyforimprovedperformance.Highefficiencycabinairfiltershave
improveddirtholdingcapacity,whichextendsfilterservicelife,dependingontheoperating conditions.
ActivatedCarbon
ActivatedcarboncabinairfiltersareavailableforsomeCatequipmentmodels.Thesecabinairfilters arerecommendedinsituationswhereodorisaproblem.Activatedcarboncabinairfiltersabsorb odorsaswellascapturingdust.Activatedcarboncabinairfiltersmustbereplacedregularlyfor maximumodorreduction.
LowerRestriction
LowerrestrictioncabinairfiltersareavailableforsomeCatequipmentmodels.Lowerrestriction cabinairfiltersaretypicallyrecommendedinsituationswherethereispoorcabairflow.Lower restrictioncabinairfiltersallowformoreairflowintothecab,buttypicallyhavealowerefficiency.
CabinAirFilterServicing
Thecapacityandrestrictionofcabinairfiltersarecarefullydesignedfortheoptimalcabairflowand cleanliness.Properserviceandmanagementofthecabinairfiltersprotectstheheatingandcooling systemfromdirtanddust,increasesfilterlife,improvesefficiency,andreducescostofservicing. Properserviceandmanagementofthecabinairfiltersalsocreatesacleanerandmorecomfortable workingenvironmentfortheoperator.
•Usecarewhenhandlinganewfilterelementduringservicing.Keepthefilterelementcleanand intheappropriatepackaginguntilreadytoinstallthefilterintothehousing.Keepthefilter elementexposuretoopenairtoaminimumtolimitintroductionofdirtorelementdamage.
•Inspectthenewfilterelementpriortoinstallationintothehousingtoensurethattheelementis freefromanydamage.Ensurethatthefilterelementiswellseatedandsealedagainstthe housing.
•Donot"tap"afilterelement,suchasonahardsurface,toremovethedust.Hittingthefilter elementonasurfacetoremovethedustcandamagethefilterelement.Deeplyembeddeddirt cannotberemovedbytappingthefilterelement.Thisprocesswillalsoremovethedirtlayer thatincreasesthefilterelementefficiency.
•Alwayschangeairfilterelementsbasedontherecommendedserviceinterval,notthe appearanceofthefilter.RefertotheOperationandMaintenanceManualfortherecommended maintenanceintervals.
•Changingtheairfilterelementbasedontherecommendedserviceintervalsallowsforoptimal servicelifeandefficiency.Changingtheairfilterelementpriortothedesignedlifeincreases servicetimeandcostunnecessarily.Changinganairfilterelementlatemaycausedamageto thecabheatingandcoolingsystemduetopotentialfailureofthefilterelement.
•Whenservicingtheairfilter,inspectthehousingandmatingcomponentsforapparentdamage. Replaceasneeded.
CabinAirPrecleaners
Thepurposeofthecabinairprecleaneristocleantheairbeforetheairreachesthefreshairfilter. Thisprecleaningisaccomplishedbyusingamotorandfantospintheincomingairatveryhighspeed insidetheprecleaner.Theheavyparticlesrideontheoutsideoftheprecleanerbodyandareejected backtotheoutsidebeforeeverreachingthefilter.
Cabinairprecleanersextendthelifeofthefreshairfilters.Customershavedemonstratedatypical increaseinfilterlifeof5to10timescomparedtosystemswithouttheprecleaner.Asaresult,theuse ofcabinairprecleanerreducesthecostassociatedwithfrequentaircleanerchangesandreducesthe maintenancetimeforfilterreplacement.
Additionally,cabinairprecleanersresultinpositive(higher)andmoreconsistentcabinairpressure. Thispositivecabinairpressurekeepsthecleanairinsidethecabwhilekeepingthedirtyairoutside. Withoutpositivecabinairpressure,dirtyoutsideaircanenterthecabthroughanysmallopenings includingbrokendoorseals,windowcracks,skipwelds,andcabpenetrations(harnesses,hydraulic lines,hoses).Withoutaprecleaner,thecabpressureishigheratthefastestfanspeedsettingandlower atthelowestfanspeedsetting.Withaprecleanerinstalled,thecabpressureremainshighnomatter whatfanspeedisselected.
CabPressureMonitor
Cabpressureisveryimportanttomaintainingaclean,healthyworkingenvironmentinsidethecab. Duetothisimportance,measuringcabinairinrealtimeandtomonitoringcabinairisuseful.This monitoringallowstheoperatortoreceivefeedbackifadoororwindowisleftopenorifafilterhas becomepluggedwithdirt.Caterpillarhasreleasedacabinpressuremonitorfordealerinstallation withadigitalreadout,programmablepressuresetpoint,andaudiblealarm.ConsultyourCatdealer formoreinformationandrefertoyourOperationandMaintenanceManualformoreinformation.
Copyright1993-2021CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
MonMay1009:49:13UTC+05302021
Product:BACKHOELOADER
Model:428BBACKHOELOADER7EJ
Configuration:428BBACKHOELOADER7EJ00001-05999(MACHINE)POWEREDBY3054DIESELENGINE
MediaNumber-SEBU9208-00PublicationDate-01/02/2018DateUpdated-13/12/2013 i05539271
CatFilters
SMCS-1054;108K;1261;1263;1308;5068;7342
CatfiltersaredesignedandbuiltbyCaterpillartoofferoptimumperformanceinCatequipmentand engines.CatfiltersaremanufacturedworldwidetothesamepreciseCaterpillarspecifications.Asa result,Catfiltersareofcommonqualityanddesignandofferthesameperformanceworldwide.
CatfiltersareextensivelytestedandvalidatedtoensuretheoptimalperformanceinCatmachinesand engines.CatfiltersareoptimizedforCatequipment.
CaterpillardesignsandbuildsfilterstoserviceallthefiltrationneedsofCatcompletemachineand engineproductlines.Catfiltershavebeendesignedandconstructedofhigh-qualitymaterialsinorder tokeepmachinecompartmentandenginesatthedesiredlevelofcleanliness.Thesefiltersallowthe machinecompartmentsandenginestofunctionperthequalitydesignedintothesecomponents.Cat filtersareusedasfactoryfitandforproductservice.
Copyright1993-2021CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
MonMay1009:44:12UTC+05302021
Product:BACKHOELOADER
Model:428BBACKHOELOADER7EJ
Configuration:428BBACKHOELOADER7EJ00001-05999(MACHINE)POWEREDBY3054DIESELENGINE
OperationandMaintenanceManual
MediaNumber-SEBU9208-00PublicationDate-01/02/2018DateUpdated-13/12/2013
ContaminationControl
SMCS-1054;108K;1261;1263;1308;5068;7342
DefiningContamination
i05540463
Contaminationisdefinedasthepresenceofunwantedforeignsubstancesinfluidsystemsorfluid wettedparts.Contaminationaltersthepropertiesoffluids,causesdamageoffluidsystems,and preventssystemsandcomponentsfromattainingthedesiredreliabilityanddurability.Contamination istheprimarycauseoffluidsystemfailures.
Contaminantsincludeawidevarietyofunwantedsubstancesincludingbutnotlimitedtothe following:
•Foreignandabrasivesubstancessuchaswearparticles,fibers,dirt,anddust
•Chemicalsubstancessuchasproductsofcombustionthataresuspendedinthefluids
•Crosscontaminationofwater,coolant,oil,andfuel
•Biologicalmicro-organismssuchasalgaeorfungi
•Physical/chemicalcontaminantssuchasproductsofoxidationandheat
Somecontaminantsaregeneratedwithinthefluidsystemduetothenormaloperationofthesystem. Contaminantsmaybedrawnintothesystemfromtheoutsideenvironmentorcontaminatedfillfluids orimpropermaintenanceandrepairpractices.
Particlecontaminantsarevisibletothenakedeyeiftheparticlesareapproximately40µm(microns) andlargerwhilesmallerparticlesarenotvisible.Particlecontaminantscancausedamageevenifthe particlesarenotvisibletothenakedeye.Thecriticalparticlesizeforwearparticlesinamodern dieselenginefuelsystemis4µm.
Contaminantsofalltypescanbecontrolledbyfollowingcontaminationcontrolpracticesandusing appropriatefiltration.RefertoyourOperationandMaintenanceManualandtoyourlocalCatdealer forrecommendations.
Controllingcontaminationisespeciallyimportantforcurrentmachinesystems.Currentmachine systemssuchashydraulicsystemsandfuelinjectionsystemsaredesignedwithclosetolerancesand operateathighpressuresforenhancedperformance.Thesedesignimprovementsemphasizethe importanceofhigherperformingfluids,enhancedfluidfiltration,andgreatlyimprovedfluid cleanlinesslevels.
MeasuringCleanliness
Fluidcleanlinesscanbemeasuredbytakingfluidsamplesfromvariousmachinecompartments.Your Catdealercananalyzethesamples.Particlecontaminantsaretypicallymeasuredbyparticlecounters. Chemicalcontaminantscanbemeasuredbyspecificanalysistechniquessuchasoxidation,water,or soottests.Somechemicalcontaminants,suchaswaterinfuel,caninterferewiththeparticlecounters andcanbecountedasparticles.RefertoyourCatS·O·SlabortoyourCatdealerformore information.
Thenumberofparticlesinfluidsisexpressedin"ISO(InternationalOrganizationfor Standardization)"ratings."ISO4406"Standardclassifiesfluidcleanlinessbythenumberandsizeof particlesin1milliliteroffluid."ISO4406"Standardmeasuresparticlesizeinµm(microns)and reportstheresultingcountinthreecoderangesX,Y&Z.Thethreecoderangedefinesthesizeand distributionofparticlesin1milliliteroffluid:
•Thefirstcoderange,Xrepresentsthenumberofparticlesequaltoorlargerthan4µmper milliliteroffluid.
•Thesecondcoderange,Yrepresentsthenumberofparticlesequaltoorlargerthan6µmper milliliteroffluid.
•Thethirdcoderange,Zrepresentsthenumberofparticlesequaltoorlargerthan14µmper milliliteroffluid.
Anexampleofan"ISO4406"particlecountis18/16/13.Cat"ISO"cleanlinessrecommendationsare expressedastwoorthreecodes,dependingonthemachinesystem.Thethreecoderangefollows "ISO4406"definitionsandisusedforliquidfuelssuchasdieselandgasoline.Thetwocodesystem, example"ISO-/16/13",isusedforcertainlubricantsystems.Inthetwocodesystem,thefirstnumber isthenumberofparticlesequaltoorlargerthan4µmpermilliliteroffluid.Thisnumberisnot requiredandmayberepresentedbyadash(-).Thesecondnumber(Y)andthethirdnumber(Z) follow"ISO4406"definitions.CatreportstheYandZcodesforlubricatingoilstokeepconsistency witholderdataandreports.
Anexampleoftheparticlesizeanddistributionofthe"ISO4406"codesisgiveninTable1.
Table1
ISO4406Code
This is the sample of the manual Click on the download link for complete Manual
"ISO18/16/13"1300-2500320-64040-80
"ISO21/19/17"10000-200002500-500080-160
Note:Severalfactorsaffecttheresultsofparticlecounts.Thefactorsincludethecleanlinessofthe equipmentusedtoobtainthesample,sampletechniques,thecleanliness,andtypeofsample container,particlecounteraccuracy(calibration,maintenance,andprocess),andtheenvironment wherethesampleisprocured.Samplesshouldbetakenatrepresentativelocationsinthefluid circulationsystemorthefluiddistributionsystemwhenpossible.Thesampleshouldbeprotected adequatelyfromcontaminationduringtransporttothelabforanalysis.
Inaddition,particlecountersmaycountwaterdropletsandairbubblesasparticulatecontamination.
Note:AmericanSocietyforTestingandMeasurementhasdeveloped"ASTMD7619""StandardTest MethodforSizingandCountingParticlesinLightandMiddleDistillateFuels,byAutomaticParticle Counter".Thistestprocedurewasdevelopedin2010tocountandmeasurethesizeofdisperseddirt particles,waterdroplets,andotherparticlesin1-Dand2-Ddieselfuelswhenthespecifiedparticle counterisused."ASTMD7619"isalsoapplicabletobiodieselfuels.
CleanlinessStandardsforMachineSystems
Catrecommendsthatmachinesystemsbemaintainedatthefactorydefinedfluidcleanlinesstargets.
Cathasestablishedminimumfluidcleanlinesstargetsforfuelsandfilloilsandformachineroll-off. Fluidsfilledintothemachineorenginefilltanksarerecommendedtobeatthetargetlevelsprovided inTable2orcleaner.Cleanlinesstargetsforapplicablemachinecomponentsystemsarereferredtoas "Roll-off".Roll-offisdefinedasthecleanlinessspecificationofthefluidthatistobeobtainedbefore themachinereturnstoworkaftermaintenanceandorsysteminvasionrepair.Whensystemfillfluids andRoll-offaremaintainedatorcleanerthanthe"ISO"cleanlinesstargets,contamination-related effectswillbereduced.
Table2
18/16/13
Differentials,Wheels,and Axles(4)
(1)ThefluidsshouldmeetorexceedthecleanlinessrequirementsofthelistedISOlevels.
ISO-/18/15
(2)Forengineoils,whenfilteringtheoilpriortodispensingintotheenginetank,useengineoilfiltersof12micron absoluteefficiencyandensurethattheoiltemperatureis20°C(68°F)orhigher.Refertothedetailsgiveninthis article.
(3)Fortransmission,gear,differentialandaxleoils,additivesandtheviscosityoftheoilmayinterferewithparticle counting.Analternativeistouseadequatefiltrationtoensurecleanoilspriortofillinginthemachinecompartment.
(4)ThiscleanlinessstandardappliesonlytotheSeries700familyofrigidframetrucks,777sizeandlarger.
The"fill"fluidscleanlinesstargetisnotafluid"delivery"target.Thelevelofcleanlinessfordelivered fluidsisnotspecifiedbyCat.Customerscanworkwiththedistributorsorcarrierstodeterminethe cleanlinesslevelofdeliveredfluids.However,amoreeffectiveandeconomicmeanstoachievethe fillcleanlinesstargetsistofilterthefluidspriortofillingintomachinetanksascomparedwith specifyingdeliveryfluidcleanlinesslevel.FollowtheguidelinesprovidedinthisContamination Controlarticle.
Althougholdertechnologymachinesmaynotbeabletomaintaintherecommendedcleanliness targetsofadvancedmodels,thesamecontaminationcontrolinterventionmeasuressuchasfiltration andsubsequentserviceproceduresshouldbeusedonallCatproducts.
Theviscosityandadditivesofpowertrainoilsincludingtransmission,gear,differential,andaxleoils caninterferewithparticlecounting.Analternativeoptionistofiltertheoilsusingadequatefiltration toensurecleanoilspriortofillinginthemachinecompartments.
Note:Whenparticlecountingnewmulti-viscosityengineoils,theremaybedifficultiesachieving cleanlinesstargets.Opticalparticlecounterscannotdistinguishbetweenparticulatecontaminantsand additives.Donotuseopticalparticlecountfortheevaluationofusedengineoilsbecausesootlevels renderoiltoodarkforopticalparticlecounters.Sootlevelsinusedengineoilsshouldbeevaluatedby usingS·O·SServicesOilAnalysis.
Whenfilteringengineoilbeforedispensingintotheenginetankorwhenengineoilkidneylooping filtrationisdone,followtheserecommendations:
•Useengineoilfiltersof12micronsabsoluteefficiency.CatUltraHighEfficiencyLubefilteris recommended.ConsultyourCatdealerforthemostcurrentpartnumber.
•Ensurethatthetemperatureofengineoilis20°C(68°F)orhigher.
ConsultyourCatdealerforinformationandsolutionstoyouroilandfuelanalysisneeds.
GeneralContaminationControlRecommendationsorPractices
Maintainingalowcontaminationlevelcanreducedowntimeandcancontrolthemaintenancecostof themachine.Theproductivelifeaswellasthereliabilityofcomponentsandfluidsystemsisoften increasedasaresultofpropercontaminationcontrolpractices.
Thefollowingaregeneralguidelinesforcontrollingcontaminants.
•RefertotheRecommendationsforFuelSystemsinthischapterforrecommendedfuel cleanlinesslevelsandguidelines.
•RefertothemachineOperationandMaintenanceManualfortherequiredmaintenanceforall machinecompartments.
•Whenyouaddoiltoamachine,useadequatefiltrationinordertocleantheoiltomeetthe targetsprovidedinTable2.
•PerformscheduledS·O·SServicesOilAnalysisforcontaminationinordertomaintainthe recommendedISOcleanlinessleveloffillandmachinefluids.RefertotheS·O·SOilAnalysis sectioninthisSpecialPublication.TheparticlecountanalysiscanbeperformedbyyourCat dealer.ParticlecountcanbeconductedduringthescheduledS·O·SServicesOilAnalysisfor thecompartment.Extraoilsamplesarenotrequiredfortheparticlecountsampling.
•UseonlycoolantsthatarerecommendedbyCatforyourmachine.Followtherecommended maintenanceprocedureforthecoolingsystemintheOperationandMaintenanceManualfor yourmachine.
•Maintaintheengineairfiltersandairintakesystemtoavoidunwantedcontaminantingression.
•Followcontaminationcontrolpracticesfortheshoparea,component/machinedisassembly areas,parts,shoptools,testsetups,testareas,storageareasandwastecollectionareas,Keep componentscleanduringinspection,assembly,testing,andfillingmachineswithcleanfluids. Goodpracticeswillenhancecomponentlifeandreducedowntimeassociatedwith contaminants.YourCatdealercanprovidedetailsonpropercontaminationprocessesand practices.
•Followcontaminationcontrolpracticesfortheworkplaceandfortheworksite.Maintaining cleanoilfillfluidssavestimeandeffortandensuresthatfillfluidsareatthepropercleanliness levels.
•Useproperlydesignedandmaintainedbulkstoragefluidstanks.
•Protectthefluidsstoragetanksfromdirtandwaterentrybyusing4µmorlessabsolute efficiencybreatherswiththeabilitytoremovewater.
•Keeptheareasaroundthetanksfillerneckscleanofdebrisandwater.
•Drainthestoragetanksfromwaterandsedimentsfrequently.Thedrainingscheduledependson useofproperinletandoutletfilters,theuseof4µmbreatherswiththeabilitytoremovewater, andfollowingrecommendedcontaminationcontrolpractices.Basedonthecontamination controlprogramfollowed,and/oronthefuelsupplierrecommendations,thestoragetank drainingschedulemaybeasfrequentasdailyuntilnowaterispresent,andthencanbe extendedtolongerperiods.
•Installandmaintainaproperlydesignedandgroundedfiltrationsystem.Filtrationshould includeattheentryandatthedispensingpoint.Continuousbulkfiltrationmayberequiredto ensurethatdispensedoilsmeetthecleanlinesstarget.
•Cover,protect,andensurecleanlinessofallconnectionhoses,fittings,anddispensingnozzles.
Note:BulkfuelfiltrationunitsareavailablethroughyourCatdealer.Propermaintenancepra#ticesof thebulkfiltrationsystemsareavailablethroughyourCatdealer.
ContaminationControlRecommendationsforFuels
Fuelsof"ISO18/16/13"cleanlinesslevelorcleanerasdispensedintotheengineormachinefueltank shouldbeused.Reducepowerloss,failures,andrelateddowntimeofengineswillresult.This cleanlinesslevelisimportantfornewfuelsystemdesignssuchasCommonRailinjectionsystemsand unitinjectionsystems.Injectionsystemdesignsutilizehigherfuelpressuresandtightclearances betweenmovingpartsinordertomeetrequiredstringentemissionsregulations.Peakinjection pressuresincurrentfuelinjectionsystemsmayexceed30,000psi.Clearancesinthesesystemsare lessthan5µm.Asaresult,particlecontaminantsassmallas4µmcancausescoringandscratching ofinternalpumpandinjectorsurfacesandofinjectornozzles.
Waterinthefuelcausescavitation,corrosionoffuelsystemparts,andprovidesanenvironment wheremicrobialgrowthinthefuelcanflourish.Othersourcesoffuelcontaminationaresoaps,gels, orothercom°oundsthatmayresultfromundesirablechemicalinteractionsinthefuels,particularlyin UltraLowSulfurDiesel(ULSD).Gelsandothercompoundscanalsoforminbiodieselfuelatlow temperaturesorifbiodieselisstoredforextendedperiods.Thebestindicationofmicrobial contamination,fueladditives,orcoldtemperaturegelisrapidfilterpluggingofbulkfuelfiltersor machinefuelfilters.
Inordertoreducedowntimeduetocontamination,followthesefuelmaintenanceguidelines.Also, followtheGeneralContaminationControlRecommendationsorPracticesgivenaboveinthis Chapter:
•Usehigh-qualityfuelsperrecommendedandrequiredspecifications(refertotheFuelChapter inthisSpecialPublication)
•Fillmachinefueltankswithfuelsof"ISO18/16/13"cleanlinesslevelorcleaner,inparticular forengineswithcommonrailandunitinjectionsystems.Whenyourefuelthemachine,filter thefuelthrougha4µmabsolutefilter(Beta4=75upto200)inordertoreachthe recommendedcleanlinesslevel.Thisfiltrationshouldbelocatedatthedevicethatdispensesthe fueltotheengineormachinefueltank.Inaddition,filtrationatthedispensingpointshould removewatertoensurethatfuelisdispensedat500ppmwaterorless.
•Catrecommendstheuseofbulkfuelfilter/coalescerunitswhichcleanthefuelofboth particulatecontaminationandwaterinasinglepass.Catoffersheavy-dutyfilter/coalescer unitstoaccommodatefuelingratesfrom50to300gpm(gallonsperminute).
•EnsurethatyouuseCatAdvancedEfficiencyFuelFilters.Changeyourfuelfiltersper recommendedservicerequirementsorasneeded.
•DrainyourwaterseparatorsdailypertheOperationandMaintenanceManualofyourmachine.
•DrainyourfueltanksofsedimentandwaterpertheOperationandMaintenanceManualofyour machineorsoonerasfuelconditionindicates.
•Installandmaintainaproperlydesignedbulkfilter/coalescerfiltrationsystem.Continuous bulkfiltrationsystemsmayberequiredtoensurethatdispensedfuelmeetsthecleanliness target.ConsultyourCatdealerforavailabilityofbulkfiltrationproducts.
•Centrifugalfiltersmayneedtobeusedasapre-filterwithfuelthatisseverelycontaminated withgrossamountsofwaterand/orlargeparticulatecontaminants.Centrifugalfilterscan effectivelyremovelargecontaminants,butmaynotbeabletoremovethesmallabrasive particlesrequiredtoachievetherecommended"ISO"cleanlinesslevel.Bulkfilter/coalescers arenecessaryasafinalfilterinordertoachievetherecommendedcleanlinesslevel.
•Installdesiccanttypebreathersof4µmorlessabsoluteefficiencywiththeabilitytoremove wateronbulkstoragetanks.
•Followproperpracticesoffueltransportation.Filtrationfromthestoragetanktothemachine promotesthedeliveryofcleanfueltomachinetank.Fuelfiltrationcanbeinstalledateach transportstageinordertokeepthefuelclean.
•Cover,protect,andensurecleanlinessofallconnectionhoses,fittings,anddispensingnozzles.
NOTICE
Inordertomeetexpectedfuelsystemcomponentlife,4micron(c) absoluteorlesssecondaryfuelfiltrationisrequiredforallCatdiesel enginesthatareequippedwithcommon-railfuelsystems.Also,4 micron(c)absoluteorlesssecondaryfuelfiltrationisrequiredforall Catdieselenginesthatareequippedwithunitinjectedfuelsystems. ForallotherCatdieselengines(mostlyolderengineswithpump,line andnozzletypefuelsystems),theuseof4micron(c)absoluteorless secondaryfuelfiltrationisstronglyrecommended.Notethatall currentCatdieselenginesarefactoryequippedwithCatAdvanced Efficiency4micron(c)absolutefuelfilters.
ConsultyourlocalCatdealerforadditionalinformationonCatdesignedandproducedfiltration products.
Copyright1993-2021CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees. MonMay1009:49:54UTC+05302021
Product:BACKHOELOADER
Model:428BBACKHOELOADER7EJ
Configuration:428BBACKHOELOADER7EJ00001-05999(MACHINE)POWEREDBY3054DIESELENGINE OperationandMaintenanceManual
MediaNumber-SEBU9208-00PublicationDate-01/02/2018DateUpdated-13/12/2013
CoolantFilters
SMCS-1352-FI
i05539737
CoolantpelletedfiltershavebeenhistoricallyusedonsomeCatmachinesorengines.Themain functionofthesepelletedfilterswastoallowdosingofthesupplementalcoolantadditivesintothe coolingsystemsthatusedDEACcoolants.Startingin2013,Caterpillarpelletedcoolantfilterswillbe discontinuedandwillbereplacedwithanon-pelletedfilteranddirectdosingwithsupplemental coolantadditive(SCA).
Note:Thecoolantpelletedfiltersarediscontinuedduring2013.Thenon-pelletedfilterreplacements requirethatthecoolingsystemusingCatDEACshouldbedoseddirectlywiththesupplemental coolantadditive.Fortherecommendeddosingvolumesanddosingintervalsfollowtheinstructions providedinSpecialPublication,SEBU6250,"CaterpillarMachineFluidsRecommendations"or SpecialPublication,SEBU6251,"CatCommercialDieselEngineFluidsRecommendations".
Thecoolantfiltersthatreplacedthepelletedfiltersareaspin-onfilterdesign.Servicingofthesefilters isrecommendedasfollows:
•Replacethefilterwhenyouchangethecoolantfluid.
•Ifsignsofcorrosionappearonthefilter,specificallyatthetopofthefilterwherethefilteris assembledintothesystem.Inspectthefilterforcorrosioneverytimeyoudosethesystemwith coolantadditives.
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PreviousScreen
Product:BACKHOELOADER
Model:428BBACKHOELOADER7EJ
Configuration:428BBACKHOELOADER7EJ00001-05999(MACHINE)POWEREDBY3054DIESELENGINE
OperationandMaintenanceManual
MediaNumber-SEBU9208-00PublicationDate-01/02/2018DateUpdated-13/12/2013
DieselExhaustFluidFilters
SMCS-108K-FI
i05539940
DieselExhaustFluid(DEF),alsogenericallyreferredtoasurea,isaliquidthatisinjectedintothe exhaustsystemofenginesequippedwithSelectiveCatalyticReduction(SCR)systems.SCRreduces emissionsofnitrogenoxides(NOx)indieselengineexhaust.
InenginesequippedwithanSCRemissionsreductionsystem,DEFisinjectedincontrolledamounts intotheengineexhauststream.DEFisthentransformedchemicallyintoammonia.Theammonia,in thepresenceofSCRcatalyst,convertsNOxintoharmlessnitrogen(N2)andwater(H2O).Referto SpecialPublication,SEBU6250,"CaterpillarMachineFluidsRecommendations"orSpecial Publication,SEBU6251,"CatCommercialDieselEngineFluidsRecommendations"fordetailsand requirementsofDEF.
ThecleanlinessofDEFiscriticaltotheperformanceandoperationoftheSCRaftertreatmentsystem. ContaminantsinterferewiththecontrolledinjectionofDEFandwiththeSCRsystempump performance.ContaminantsareintroducedintothesystemmainlyduringfillingofDEFintothe engineormachinetank.Dirtatthefillingopening(neck)andsurroundingareacanbeintroducedinto thetankifcontaminationcontrolprecautionsarenottaken.Thesurfacessurroundingfillercapshould bethoroughlycleanedbeforeopening.Theopeningofthedispensingcontainershouldalsobe thoroughlycleanedbeforefillingtheDEF.Thesestepshelpavoidtheintroductionofcontaminants intothesystemandallowthesystemtoperformasdesigned.
AnothersourceofcontaminationisdirtyDEF.DEFshouldbecleanastheDEFisdispensedintothe engineormachinetank.Thedispensingcontainerfillingneckshouldbecleanandshouldnot introducecontaminantsintotheDEFengineormachinetank.CaterpillarrecommendedDEFfillfluid cleanlinessis"ISO18/16/13"asdispensedintotheengineormachinetank.RefertothisSpecial Publication,"ContaminationControl"fordetails.
ContaminationofDEFcanresultinpoorperformanceoftheSCRsystem,downtime,andincreased cost.Inordertoavoidcontaminationrelatedissuesanddowntime,followallthecontamination controlguidelinesdetailedinthisSpecialPublication,"ContaminationControl".
Note:ThecleanlinessoftheDEFisasimportantasthecleanlinessofthefuel.Caterpillar recommends"ISO18/16/13"cleanlinesslevelforDEFfluidasdispensedintotheengineormachine tank.RefertothisSpecialPublication,"ContaminationControl"fordetailsandguidelines.
MultiplefiltrationstepsaredesignedintotheSCRsystem:
InletFiltrationScreen-ThereisafiltrationscreenattheinletfillingopeningoftheDEFtank.This screenreducesthecontaminationintroducedduringfillingofDEFengineormachinetank.The screenisaserviceablepartandshouldbechangedifthefillingtimeisslowedduetothedirt accumulationoratthepublishedserviceintervals.RefertoyourOperationandMaintenanceManual forinformation.
HeaderScreen-ThereisaDEFheaderscreenlocatedintheDEFtank.Thisscreenhelpsreducethe contaminationtransportedintothesystemfromthetank.Forquestionsaboutthetankscreen,consult yourCatdealer.
DEFFilter-TheDEFfilteris4micronsabsoluteefficiency.TheDEFiscirculatedthroughthepump andthenpassesthroughthefiltertoprotectthedosinginjectorfromdebris.Thisfilterisserviceable andshouldbechangedattheservicehourspublishedintheOperationandMaintenanceManualofthe engineormachine.Whenthecontaminationlevelishigh,theDEFfiltermayplugearly.Inthiscase, thefiltershouldbechangedassoonthefirstsignsofpluggingorincreaseofpressurearenoticed. ThischangewouldavoidfurtherdamageandwearoftheDEFsystemsurfaces.
Copyright1993-2021CaterpillarInc. AllRightsReserved.
PrivateNetworkForSISLicensees.
MonMay1009:46:47UTC+05302021
Product:BACKHOELOADER
Model:428BBACKHOELOADER7EJ
Configuration:428BBACKHOELOADER7EJ00001-05999(MACHINE)POWEREDBY3054DIESELENGINE
MediaNumber-SEBU9208-00PublicationDate-01/02/2018DateUpdated-13/12/2013
EngineAirFilters
SMCS-1054
Thepurposeofanengineairfilter,whichwillbereferredtoasanairfilterinthissection,istoclean theairincomingintotheengine,typicallycalledintakeair.Intheengine,intakeairmixeswithfuel thatisinjectedintothecombustionchamberatpreciseratios.Thishighlydesignedcombustion processensuresthattheengineoperatesasintendedandperdesign.
Thecleanlinessoftheintakeairiscriticaltotheperformanceoftheengine.Dirtyandcontaminated intakeaircausesalowerqualitycombustionprocess,whichresultsinaroughrunningengineand lowerpower.Also,dirtyintakeairintroducesabrasivedirtintoenginecomponentsthataremovingat highspeedsuchaspistons,rings,andbearings.Theabrasivedirtscratchesthesurfacesofmoving componentsandcausesgougingandroughness.Theroughandscratchedsurfacesleadtolower performance,higheroilconsumption,reducedlifeoftheengine,downtime,alongwithothernegative effectsandhighermaintenancecost.
Airfiltersaredesignedspecificallyforthemachineorengineapplicationinordertosupplytheproper airflowforthecombustionprocess.Largeenginesmayrequiremultipleairfilterstosupplythe neededvolumeofcleanair.RefertoyourmachineOperationandMaintenanceManualforthe specificairfilterthatisdesignedforyourmachine.
NOTICE
Donotsubstituteanyotherairfilter.Airfiltersthatarenotdesigned fortheengineairflowandapplicationcandamagetheengineand causepoorperformance.
i05540117
Off-roadandminingheavy-dutyequipmentandmachinestypicallyworkindustyanddirty environments.Theairfilterelementsusedintheseapplicationshavetoofferstrengthandhighdirt holdingcapacityinordertoprotecttheengineforthedesignedservicelifeofthefilter.
CatairfiltersaredesignedforoptimalfitandperformanceintoallapplicationsofCatmachinesand engines.Thesefiltersaredevelopedusinghigh-qualitymaterials,precisedesigns,anddimensions. Thefiltersofferthebestcapacity,leveloffiltration,andservicelifeneededforallCatenginemodels andmachinesforallconditionsofoperation.
High-qualityairfiltersystemshavethefollowingcharacteristics:
•Allowtheappropriatevolumeofcleanintakeairtotheengine
•Designedwiththecapacityfortheintendedlifeandmaintenanceintervals
•Withstandthevibrationsexpectedinthemachineandapplication
•Effectivelycleantheintakeairtoprotecttheenginecomponents
•Allowforeaseofserviceability
•Preciselyfitintothemachineorenginedesign
Note:Airfiltersforoff-roadmachineshavetoberobustandofferstrength,desiredlife,and performanceunderdemandingconditions.Off-roadmachinestypicallyexperiencehighvibration, highimpacts,anddustyenvironments.Useofinferiorqualityfiltersoruseoffiltersotherthanthose filtersrecommendedforyourmachinemaycausepoorengineperformanceandenginedamage.
AirFilterSelectionCriteria
Airfiltersareselectedbasedontheairflowrequirementsoftheengine.Thefollowingarethemain componentsfordesigninganairfilterfortheapplication.
RatedEngineAirFlow-Airflowneededforappropriateenginepowerandoperation.Airflowis typicallyexpressedincubicfeetperminute(cfm),cubicmetersperminute(m3/min),orkilograms perhour(kg/hr).
InitialandFinalRestriction-Airrestrictionlimitneededtoensurecontinuousflowofappropriate volumethroughouttheservicelifeofthefilter.Initialrestrictionismeasuredwithacleanfilter element.Finalrestrictionismeasuredwithafullyloadeddirtyfilterelement.Restrictionistypically expressedininchesofwater(inH2O),orkilopascals(kPa).
DustConcentration-Amountofdirt,dust,andcontaminationexpectedintheapplication environment.Dustconcentrationistypicallyexpressedingramspermetercubed(g/m3).
Mounting-Mountingistheavailablespacetolocatetheairfilterproperly,whileconsideringthe vibrationsexpectedduringoperationoftheengineorthemachine.
ServiceInterval-Expectedfrequencyofdirtyfilterelementreplacement.Theserviceintervalis typicallyexpressedinhours(hrs).Aserviceintervalbasedonthefilterrestrictionispreferred.Refer tothisSpecialPublication,"ServicingEngineAirFilters"fordetails.
AirFilterComponents
Thedesignsofairfiltersmayvarysignificantlyamongdifferentairfiltermodels.Someairfilter designsarecomplicatedandmadeofmultiplecomponentswhileothersaresimpleandmadeoffew components.Table1liststhecomponentsthatcanbeincludedinairfilters.Thesecomponentsmay notbeincludedinallairfilterdesigns.Useonlytherecommendedairfilterforyourmachine.
Note:Airfiltersarealsocalledaircleaners.Filterelementreferstothedisposablemedia.
Assembledairfilter
Component(1) Function
Table1
SinglestageaircleanerNoprecleaningfeature
TwostageaircleanerContainsprecleaningfeature
Precleaner Removesdirtpriortoprimaryfilter
Housing Protectsfilterelement
Primaryfilterelement
Removesthemajorityofdustanddirtfromintakeair
Secondaryfilterelement (Safetyfilterelement)Protectsengineduringserviceorfailureofprimaryfilter
Dustdischarge/ScavengeportDirtdischargeoutletfortwostageaircleanersandprecleaners
Dustdischargevalve
Availableontwo-stageaircleanersandprecleanerstodischarge dirt
Filterserviceindicator/sensorIndicatesfilterrestrictionandtruefilterservicelife
Raincap Protectsairintakefromrainandvariousformsofdebris
Ejectorcheckvalve
Preventsexhaustbackflowandprotectsairfilter
(1)Thesecomponentsmaynotbeincludedineveryfilterdesign.
SingleStageAirCleaner(AirFilter)
Asinglestageaircleanerdoesnothaveaprecleaningfeaturedesignedintothehousing.Thisair cleanertypicallyhasaprimaryandasecondaryelements.Singlestageaircleanersarecommonly usedforlowdustapplications.
TwoStageAirCleaner(AirFilter)
Atwostageaircleanercontainsaprecleaningfeature.Theprecleaningfeatureistypicallydesigned intothehousing.Thisdesignallowstheincomingairtospininthehousing,whichcausesthe separationofthelargeparticlesbeforetheairentersthefilterelement.Thelargeparticlesarethen dischargedfromthehousingthroughabuiltindischargeport.Typically,thetwostageaircleanerhas primaryandsecondaryairfilterelements.Twostageaircleanersarecommonlyusedforhighdust applications.
Precleaner
Exampleofaplenumthatconnectstheprecleanertothefilter
Aprecleanercanbeseparateorintegratedintotheaircleaner.Theprecleanerisdesignedtocleanthe intakeairbeforetheairflowsthroughtheprimaryfilterelement.Precleanersextendthelifeof primaryfilterelementsbyremovinglargeparticlesofdustanddirtbeforetheparticlereachthe primaryfilterelement.Therearetwomaintypesofprecleaners,turbineandseparatortube.Useofa built-industdischargeportintheprecleanerhousingisrecommendedinordertolimitdirt accumulationandmaintenance.
Turbineprecleanersusearotatingimpellertoseparateprimarilylargeparticlesfromtheairstream. Therotatingimpellerforcesmostofthelargerparticlestowardstheouteredgeofasingleinlet airstream.Theparticlesarethendischargedthroughadiverterfeaturebuiltintotheedgeofthe housing.Turbineprecleanersdonottypicallyrequirescavenge,althoughtheturbineperformancecan beenhancedifscavengecanbeused.
Separatortubeprecleanersusespeciallydesignedtubestoseparatelargeandsmallparticlesfromthe airstream.Separatortubeprecleanersuseseveralsmallerfixedvanecyclonictubestoforcethedirt particlesoutofthedividedairstreamsbycentrifugalmotion.Thedirtparticlesarethendischarged throughgravityfedorvacuumdrivenscavengeport.
Precleanerscanbeusedwithsingleorwithtwo-stageaircleaners.However,theuseofprecleaners withtwostageaircleanersisnotgenerallyrecommended.
Housing
Airfilterhousingscanbemetallic,non-metallic,oracombination.Housingscanhavevariousshapes andsizes.Airfilterhousingsaredesignedtobevibration,corrosion,chemical,andimpactresistant. Filterhousingsshouldbedesignedtofitthemachineorengineapplication.Thefilterelementis designedtofitpreciselyintothehousingtoensureagoodsealsothatonlycleanairenterstheengine.
PrimaryFilterElement
Theprimaryfilterelementisdesignedtoremovethedirtfromtheairstreambeforeenteringthe engine.Theprimaryfilterelementmediamaybesynthetic,cellulose,oracombination.Filtermedia mayalsocontainresinsandbinders.Themediacouldbeofvariousdesignsincludingbutnotlimited topleatedandfluted.Ahigh-qualityfiltermediaallowshighseparationefficiencyandextended servicelife.Thefilterelementmaybedesignedtoofferalargesurfaceareaforadditionaldirtholding capacity.RefertotheOperationandMaintenanceManualfortherecommendedmaintenance intervals.
Catprimaryairfilterelementsareofferedinstandardandultrahighefficiencymedia.
•CatstandardefficiencyfiltersareavailableforallCatequipmentmodels.Standardefficiency airfiltersarerecommendedfornormaldutyfiltration.Standardefficiencymediaisdesignedto preventdirt,soot,sand,andothercontaminatesfromenteringtheengineundernormal operatingconditions.
•Catultrahighefficiency(UHE)filtersareavailableforsomeCatequipmentmodels.UHEair filtersarerecommendedwhenextremefinedustorsootmakeupahighpercentageofthe contaminantsintheatmosphere.UHEelementshaveahigherinitialandoverallefficiencyfor improvedengineperformance.UHEelementshaveimproveddirtholdingcapacity,which extendsfilterelementservicelife,dependingontheoperatingconditions.
SecondaryFilterElement
Thesecondaryfilterelementisdesignedtopreventdirtfromenteringtheengineduringprimaryfilter elementserviceorasabackupiftheprimaryelementfails.Forthisreasonthesecondaryfilter elementmayalsobecalledasafetyfilter.Thesefilterelementsarenotusedineverydesignbutare highlyrecommended.RefertotheOperationandMaintenanceManualfortherecommended maintenanceintervals.
SealingofMediaandHousing
Filterelementsshouldhaveappropriatesealingbetweenthemediaandthehousing.Thefilterelement isdesignedtofitpreciselyintothehousingtoensureagoodsealsothatonlycleanairentersthe engine.Sealingcanberadialoraxial.
•Radialsealedelementsaredesignedtosealontheinsideand/oroutsidediameterofthefilter elementastheelementcontactsthehousing.Thistypeofsealallowsformoreflexibilityduring theinstallationprocess,whilestillprovidingarobustseal.Mostcurrentaircleanerdesignsuse radialsealingtechnology.
•Axialsealedelementsaredesignedtosealonlyontheendofthefilterelementasthefilter contactsthehousing.Thistypeofsealhaslessflexibilityduringtheinstallationprocess,since thesealrequiresanearperfectpositioninthehousingtoprovideanadequateseal.Forthis reason,radialsealingispreferred.
DustDischarge/ScavengePort
Thedustdischargeportisusedtoprovideanoutletforthedirtremovedbytheprecleanerortwo stageaircleaner.Dustdischargecanbeassistedbyadischargevalveorbytheuseofascavenge system.Withoutthisport,thedirtmaybuildupinthecleanerandcloggingmayoccur.
DustDischargeValve
Thedustdischargevalveusesgravityandpressuretohelpeliminatethedirtfromthecleaner. Typically,thisvalvestayscloseduntiltheengineisturnedofforpulsationstriggerthevalvetoopen. Thevalvecanbeattacheddirectlytothedustdischargeportortoanextensiontube.Thelatterallows gravitytoassistthedischargeofdirt.
FilterServiceIndicator/Sensor
Filterserviceindicatorsallowthedeterminationofthepressuredropacrossthefilter.Asdustanddirt builduponthefilterelement,thepressureacrosstheelementincreases.Indicatorscanbeelectronicor mechanicalandmayuseremotelymounteddisplaysforoperatorconvenience.Filterelementsmustbe servicedwhentheelementsreachapre-designedpressuredrop.Indicatorsallowthedeterminationof thepressuredropandhenceallowforservicingattherightinterval.Indicatorshelppreventover servicingandhighercost.Theindicatoralsohelppreventunderservicing,lossofperformanceand potentialenginedamage.RefertotheOperationandMaintenanceManualfortheindicator recommendedreadingorresettingifneeded.
RainCap
Araincapprotectstheairintakefromrainandvariousformsofdebris.Ifneeded,theraincapmaybe integratedintotheprecleanerorcanbeaseparatecomponent.
EjectorCheckValve
Anejectorcheckvalvepreventsexhaustbackflowandprotectstheairfilterbyonlyallowingairto flowinonedirection.
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