

Product:EXCAVATOR
Model:235DEXCAVATOR8KJ
Configuration:235DEXCAVATOR8KJ00001-UP(MACHINE)POWEREDBY3306ENGINE
OperationandMaintenanceManual 235DEXCAVATOR
MediaNumber-SEBU6453-00PublicationDate-01/01/1992DateUpdated-11/10/2001
ProductIdentificationandSerialNumberLocations
TheProductIdentificationNumber(PIN)willbeusedtoidentifyapoweredmachinethatis designedforanoperatortoride.
Caterpillarproductssuchasearthmovingequipmentnotdesignedforanoperatortoride(engines, transmissions,etc.)areidentifiedbySerialNumbers.Also,mostmajorCaterpillarattachmentsare identifiedbySerialNumbers.
Forquickreference,recordtheidentificationnumbersinthespacesprovidedbelowthe illustration.





Product:EXCAVATOR
Model:235DEXCAVATOR8KJ
Configuration:235DEXCAVATOR8KJ00001-UP(MACHINE)POWEREDBY3306ENGINE
OperationandMaintenanceManual
235DEXCAVATOR
MediaNumber-SEBU6453-00PublicationDate-01/01/1992DateUpdated-11/10/2001
SpecificationsandModelViews

Engine(1),fueltank(2),hydraulictank(3),boom(4)andstick(5).

Operator'scompartment(6),radiator(7),finaldrives(8),andcounterweight(9).

Keystartswitch(10)andmonitoringsystem(11).
Basicmachineshippingspecificationsarelistedbelow.



Copyright1993-2024CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
ThuApr2510:56:00UTC+05302024

Product:EXCAVATOR
Model:235DEXCAVATOR8KJ
Configuration:235DEXCAVATOR8KJ00001-UP(MACHINE)POWEREDBY3306ENGINE
OperationandMaintenanceManual
235DEXCAVATOR
MediaNumber-SEBU6453-00PublicationDate-01/01/1992DateUpdated-11/10/2001
Foreword
LiteratureInformation
Thismanualshouldbestoredintheoperator'scompartmentintheliteratureholderorseatback literaturestoragearea.
Thismanualcontainssafety,operation,transportation,lubricationandmaintenanceinformation.
Somephotographsorillustrationsinthispublicationshowdetailsorattachmentsthatcanbe differentfromyourmachine.Guardsandcoversmighthavebeenremovedforillustrative purposes.
Continuingimprovementandadvancementofproductdesignmighthavecausedchangestoyour machinewhicharenotincludedinthispublication.Read,studyandkeepthismanualwiththe machine.
Wheneveraquestionarisesregardingyourmachine,orthispublication,pleaseconsultyour Caterpillardealerforthelatestavailableinformation.
Safety
TheSafetySectionlistsbasicsafetyprecautions.Inaddition,thissectionidentifiesthetextand locationsofwarningsignsandlabelsusedonthemachine.
ReadandunderstandthebasicprecautionslistedintheSafetySectionbeforeoperatingor performinglubrication,maintenanceandrepaironthismachine.
Operation
TheOperationSectionisareferenceforthenewoperatorandarefresherfortheexperiencedone. Thissectionincludesadiscussionofgauges,switches,machinecontrols,attachmentcontrols, transportationandtowinginformation.
Photographsandillustrationsguidetheoperatorthroughcorrectproceduresofchecking,starting, operatingandstoppingthemachine.
Operatingtechniquesoutlinedinthispublicationarebasic.Skillandtechniquesdevelopasthe operatorgainsknowledgeofthemachineanditscapabilities.
Maintenance
TheMaintenanceSectionisaguidetoequipmentcare.Theillustrated,step-by-stepinstructions aregroupedbyservicingintervals.Itemswithoutspecificintervalsarelistedunder"When Required"topics.Itemsinthe"MaintenanceIntervals"chartarereferencedtodetailedinstructions thatfollow.
MaintenanceIntervals
Usetheservicehourmetertodetermineservicingintervals.Calendarintervalsshown(daily, weekly,monthly,etc.)canbeusedinsteadofservicehourmeterintervalsiftheyprovidemore convenientservicingschedulesandapproximatetheindicatedservicehourmeterreading. Recommendedserviceshouldalwaysbeperformedattheintervalthatoccursfirst.
Underextremelysevere,dustyorwetoperatingconditions,morefrequentlubricationthanis specifiedinthe"MaintenanceIntervals"chartmightbenecessary.
Performserviceonitemsatmultiplesoftheoriginalrequirement.Forexample,at"Every500 ServiceHoursor3Months,"alsoservicethoseitemslistedunder"Every250ServiceHoursor Monthly"and"Every10ServiceHoursorDaily."
MachineDescription

Thismachineisequippedwithadirect-injection3306turbochargedandaftercooledengine.Ithas hydrostaticdrive,variableflowhydraulicsandspringapplied/hydraulicallyreleasedbrakes.
Thismachineisdesignedprimarilyformovinganddiggingmaterial.
Copyright1993-2024CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
ThuApr2510:53:54UTC+05302024

Product:EXCAVATOR
Model:235DEXCAVATOR8KJ
Configuration:235DEXCAVATOR8KJ00001-UP(MACHINE)POWEREDBY3306ENGINE
OperationandMaintenanceManual
235DEXCAVATOR
MediaNumber-SEBU6453-00PublicationDate-01/01/1992DateUpdated-11/10/2001
LiteratureReferenceMaterials
CaterpillarReferenceMaterial
ThefollowingliteraturecanbeobtainedthroughanyCaterpillardealer.
SEBD0518,KnowYourCoolingSystem
SEBD0970,CoolantandYourEngine
SEBD0717,DieselFuelsandYourEngine
SEHS7067,FuelsRecommendationsforCaterpillarDieselEngines
LEDT5092,DrivingTechniquesForMaximumFuelEconomy
LEGT5087,TruckEngineApplicationandInstallationGuide
LEKQ3363,CaterpillarEngineDataSheet60.1,FuelsRecommendedForUseInCaterpillar TruckEngines
SEBU5898,ColdWeatherRecommendationsOperationandMaintenanceManual
SEBU6310,EMALubricatingOilsDataBookforengines
SEBD0640,OilandYourEngine
SEBU6453,Operation&MaintenanceManual
SENR5430,ServiceManual
SEBP2020,PartsManual
SEHS7392,StorageofDieselEngines
SEHS9031,StorageProcedureforCaterpillarProducts
SEBF8029,GuidelineForReusablePartsandSalvageOperations(Anindexofpublicationson reusabilityorsalvageofusedparts.)
SEBU5294,SafetyManual
SFBU6453,FrenchOperation&MaintenanceManual
SSBU6453,SpanishOperation&MaintenanceManual
SGBU6453,GermanOperation&MaintenanceManual
SLBU6453,ItalianOperation&MaintenanceManual
AdditionalReferenceMaterial
ASTMD2896TBNMeasurements(Cannormallybeobtainedfromyourlocaltechnological society,libraryorcollege.)
SAEJ313DieselFuels(FoundintheSAEhandbookorcanbeobtainedfromanylocallibrary, collegeortechnologicalsociety.)
SAEJ754Nomenclature(NormallyfoundintheSAEhandbook.)
SAEJ183Classification(NormallyfoundintheSAEhandbook.)
MaintenanceChartandDecal
ThefollowingformnumberscanbeorderedfromanyCaterpillardealer.
SELU6453chartcontainslubricationandmaintenanceinformationwithanoverheadviewof product,onoilandtearresistantmaterial.Chartcontainsrefillcapacities,lubricant recommendationsanddailywalk-aroundinspectioninformation.
SEEU6453decalcontainslubricationandmaintenanceinformationwithanoverheadviewof product,includinglubricantandrefillcapacityrecommendations.Decalcanbeplacedanywhere, butshouldnotbeplacedoverothersignsoronwindows.
Copyright1993-2024CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees. ThuApr2510:58:53UTC+05302024

Product:EXCAVATOR
Model:235DEXCAVATOR8KJ
Configuration:235DEXCAVATOR8KJ00001-UP(MACHINE)POWEREDBY3306ENGINE
OperationandMaintenanceManual
235DEXCAVATOR
MediaNumber-SEBU6453-00PublicationDate-01/01/1992DateUpdated-11/10/2001
TorqueSpecifications
Foradditionaltorquespecifications,notincludedinthissection,referto"TorqueSpecifications," formSENR3130,availablefromyourCaterpillardealer.


Thefollowingchartgivesthetorquesforinitialinstallationofhose clampsonnewhoseandforreassemblyorretighteningofhoseclamps onexistinghose.
This is the sample of the manual Click on the download link for complete Manual

TorquesforStandardFasteners
NOTICE
Thefollowingchartsgivegeneraltorquesforbolts,nutsandtaperlock studsofSAEGrade5orbetterquality.
TorquesforBoltsandNuts

TorquesforTaperlockStuds

TorquesforMetricFasteners
NOTICE
BeverycarefulnevertomixmetricwithU.S.customary(standard) fasteners.Mismatchedorincorrectfastenerswillcausemachine damageormalfunctionandcanresultinpersonalinjury.
Originalfastenersremovedfromthemachineshouldbesavedfor reassemblywheneverpossible.Ifnewfastenersareneeded,theymust beofthesamesizeandgradeastheonesthatarebeingreplaced.
Thematerialstrengthidentificationisusuallyshownonthebolthead bynumbers(8.8,10.9,etc.).Thefollowingchartgivesstandardtorques forboltsandnutswithGrade8.8.
NOTE:Metrichardwaremustbereplacedwithmetrichardware.Checkpartsmanualforproper replacement.
TorquesforBoltsandNuts

TorquesforTaperlockStuds

ThuApr2510:54:48UTC+05302024

Product:EXCAVATOR
Model:235DEXCAVATOR8KJ
Configuration:235DEXCAVATOR8KJ00001-UP(MACHINE)POWEREDBY3306ENGINE
OperationandMaintenanceManual
235DEXCAVATOR
MediaNumber-SEBU6453-00PublicationDate-01/01/1992DateUpdated-11/10/2001
CoolingSystemSpecifications
CoolantInformation
Dieselengineoperatingtemperatureshaveincreasedtoimproveengineefficiency.Thismeans propercoolingsystemmaintenanceisespeciallyimportant.Overheating,overcooling,pitting, cavitationerosion,crackedheads,pistonseizures,andpluggedradiatorsareclassiccoolingsystem failures.Infact,coolantisasimportantasthequalityoffuelandlubricatingoil.
NOTICE
Caterpillarrecommendsthatthecoolantmixturecontainaminimum of30%CaterpillarAntifreeze,orequivalent.Liquidsupplemental coolantadditivemustbeadded,whennotusingCaterpillarAntifreeze, whichcontainstheproperadditive.
Neveraddcoolanttoanoverheatedengine,enginedamagecanresult. Allowtheenginetocoolfirst.
Allwateriscorrosiveatengineoperatingtemperature.Thecooling systemshouldbeprotectedwitha3to6%concentrationofliquid supplementalcoolantadditiveatalltimes,regardlessofthe concentrationofantifreeze.
Excessivesupplementalcoolantadditivegreaterthanthe recommended6%,togetherwithconcentrationsofantifreezegreater than65%cancausedepositstoformandcanresultinradiatortube blockage,overheating,and/orwaterpumpsealdamage.
Donotuseliquidsupplementalcoolantadditiveorelementsor antifreezewithDowtherm209Full-Fillcoolant.Dowtherm209FullFillcoolantisnotcompatiblewithotherantifreezeandcoolant mixtures.
Dowtherm209full-fillcoolantwilllowerthewaterpumpcavitation temperatureandcoolantboilingpoint.Theseloweredtemperatures willcauseoverheatingatalowerambienttemperaturethanan ethyleneglycolandwatermix.IfDowthermisused,followthe
instructionsprovidedanduseonlytheinhibitorpackagerecommended bythesupplier.
Ifthemachineistobestoredin,orshippedto,anareawithfreezing temperatures,thecoolingsystemmustbeprotectedtothelowest expectedoutside(ambient)temperature.
Theenginecoolingsystemisnormallyprotectedto-28°C(-20°F)with CaterpillarAntifreeze,whenshippedfromthefactoryunlessspecial requirementsaredefined.
Checkthespecificgravityofthecoolantsolutionfrequentlyincoldweathertoensureadequate protection.
Cleanthecoolingsystemifitiscontaminated,iftheengineoverheatsoriffoamingisobservedin theradiator.
Coolantshouldbedrained,thesystemcleanedandnewcoolantaddedevery3000servicehoursor twoyears.WhennotusingCaterpillarAntifreezeandsupplementalcoolantadditiveas recommended,thedrainperiodmustbeshortenedto1500servicehoursoroneyear.
Fillingatover20liters(5U.S.gallons)perminutecancauseairpocketsinthecoolingsystem.
Afterdrainingandrefillingthecoolingsystem,operatetheenginewiththeradiatorcapremoved untilthecoolantreachesnormaloperatingtemperatureandthecoolantlevelstabilizes.Add coolantasnecessarytofillthesystemtotheproperlevel.
Neveroperatewithoutathermostatinthecoolingsystem.Coolingsystemproblemscanarise withoutathermostat.
RefertoKnowYourCoolingSystem,SEBD0518,andCoolantandYourEngine,SEBD0970,for moredetailedspecifications.
CoolantWater
Hardwater,orwaterwithhighlevelsofcalciumandmagnesiumions,encouragestheformation ofinsolublechemicalcompoundsbycombiningwithcoolingsystemadditivessuchassilicates andphosphates.
Thetendencyofsilicatesandphosphatestoprecipitateout-of-solutionincreaseswithincreasing waterhardness.Hardwater,orwaterwithhighlevelsofcalciumandmagnesiumionsencourages theformationofinsolublechemicals,especiallyafteranumberofheatingandcoolingcycles.
Caterpillarpreferstheuseofdistilledwaterordeionizedwatertoreducethepotentialandseverity ofchemicalinsolubility.

Usingwaterthatmeetstheminimumacceptablewaterrequirementmaynotpreventdrop-outof thesechemicalcompoundstotally,butshouldminimizetheratetoacceptablelevels.
Antifreeze
NOTICE
Caterpillarrecommendsthatthecoolantmixcontainaminimumof 30%CaterpillarAntifreeze,orequivalentandacceptablewaterto maintainanadequatewaterpumpcavitationtemperatureforefficient waterpumpperformance.
Premixcoolantsolutiontoprovideprotectiontothelowestexpected outside(ambient)temperature.Pureundilutedantifreezewillfreezeat -23°C(-10°F).
Onlyuseagreaterconcentration(above30%)ofCaterpillar Antifreezeasneededforanticipatedoutside(ambient)temperatures. Donotexceedacoolantmixtureof60%antifreezetowatersincea concentrationabove60%antifreezewillreducetheengine'sfreeze protectionandincreasethepossibilityofdepositformationinthe coolingsystem.
UseCaterpillarAntifreezeorGMSpecification6038-MAntifreeze.CaterpillarAntifreezeis availablethroughyourCaterpillardealerinquantitiesthatfollow.

Mostcommercialantifreezesareformulatedforgasolineengineapplicationsandwill,therefore, havehighsilicatecontent.CaterpillarAntifreezeisformulatedwithalowsilicatecontentandthe propercoolantadditivesforheavydutydieselengines.
GMSpecification6038-Misalowsilicateantifreeze,butsupplementalcoolantadditivemustbe added.
ThemajoradvantagesofCaterpillarAntifreezeare:
*Significantlyreduceswaterpumpsealleakageproblemscausedbyexcessive concentrationofchemicaladditives.
*Thereisnoneedtoaddsupplementalcoolantadditiveoninitialfillwhichmustbedone withcurrentcommerciallyavailableantifreezes.
*Highsilicateantifreezesusedwithasupplementalcoolantadditivecancauseabuildupof solidsoveraperiodoftimewhichcancauseplugging,lossofheattransfer,andwaterpump sealdamage.
Makeproperantifreezeadditions.
Addingpureantifreezeasamakeupsolutionforcoolingsystemtop-upisanunacceptable practice.Itincreasestheconcentrationofantifreezeinthecoolingsystemwhichincreasesthe concentrationofdissolvedsolidsandundissolvedchemicalinhibitorsinthecoolingsystem.Add antifreezemixedwithwatertothesamefreezeprotectionasyourcoolingsystem.
UsethechartbelowtoassistindeterminingtheconcentrationofCaterpillarAntifreezetouse.

SupplementalCoolantAdditive
Supplementalcoolantadditiveisnecessarytopreventrust,scale,pittingand/orcorrosionof enginepartsthatcoolantcomesincontactwith.MostantifreezesolutionsDONOTcontain sufficientsupplementalcoolantadditive.
NOTICE
Alwaysaddsupplementalcoolantadditiveorequivalenttothecoolant, orinstallaCaterpillarsupplementalcoolantadditiveelement(if equipped).Neverusecoolantonly,exceptifCaterpillarAntifreezeis beingusedwhichcontainstheadditive.Inthiscase,nosupplemental
coolantadditiveisneededoninitialfill,butisnecessaryona maintenancebasis.
Usesupplementalcoolantadditiveorasupplementalcoolantadditive element(ifequipped).Thiswillprovidea3to6%concentrationinthe coolingsystemtohelppreventcorrosion.
Topreventoverinhibitingtheengine'scoolingsystem,neveruseboth theliquidsupplementalcoolantadditiveandthesupplementalcoolant additiveelement(ifequipped)atthesametime.Theuseofthese additivestogethercouldresultinexcessiveconcentrationthatwould exceedtheCaterpillarrecommendedmaximumof6%.
NOTICE
Excessiveconcentrationofanadditivecanformdepositsonthehigher temperaturesurfacesofthecoolingsystemandcreateabarrierthat reducestheengine'sheattransfercharacteristics.Reducedheat transfercouldcausecrackingofthecylinderheadandotherhigh temperaturecomponents.Excessiveconcentrationsofadditivecould alsoacceleratewaterpumpsealwear.
SupplementalcoolantadditiveisneededwhennotusingCaterpillar Antifreezeforpremixedcoolantsolution.
LiquidsupplementalcoolantadditivecanbepurchasedfromyourCaterpillardealer.Followthe instructionsonthecontainer.
NOTICE
DONOTaddsupplementalcoolantadditiveatinitialfillwhenusing CaterpillarAntifreeze.CaterpillarAntifreezecontainsthenecessary supplementalcoolantadditiveprecharge.Additionofsupplemental coolantadditivecouldresultinanoverconcentration.
OninitialfillofaneworreconditionedengineifCaterpillarAntifreezeisnotused,add1liter(1 quart)ofsupplementalcoolantadditive,orequivalent,foreach30liters(8U.S.gallons)sothat thecoolingsystemwillhavea3to6%concentrationofsupplementalcoolantadditive.

Tomaintaina3to6%concentrationofadditive,addliquidsupplementalcoolantadditiveor installamaintenancesupplementalcoolantadditiveelement(ifequipped),every250servicehours oroilchange,whicheveroccursfirst.Usethe8T5296TestKittocheckforconcentration.
Iftheengineisnotequippedwithspin-onelement,add.25liter(1/2pint)ofsupplementalcoolant additiveforeach38liters(10U.S.gallons)ofcoolantcapacitytomaintainthe3to6% concentrationofadditive.



CaterpillarCoolingSystemCleanersaredesignedtocleanthesystemofharmfulscaleand corrosion.Itdissolvesmineralscale,corrosionproducts,lightoilcontaminationandsludge.
Cleanthesystemaccordingtothemaintenanceintervalchart,orwheneverthecoolantisdirtyor foaming.
CoolingsystemcleanersareavailablefromyourCaterpillardealerinthequantitieslistedbelow. Followthelabeldirectionsforproperusage.

Copyright1993-2024CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
ThuApr2510:55:14UTC+05302024

Product:EXCAVATOR
Model:235DEXCAVATOR8KJ
Configuration:235DEXCAVATOR8KJ00001-UP(MACHINE)POWEREDBY3306ENGINE
OperationandMaintenanceManual
235DEXCAVATOR
MediaNumber-SEBU6453-00PublicationDate-01/01/1992DateUpdated-11/10/2001
FuelSpecifications
FuelInformation
Useonlyfuelasrecommendedinthissection.
NOTICE
Fillthefueltankattheendofeachdayofoperationtodriveoutmoist airandtopreventcondensation.Maintainaconstantlevelnearthetop ofthedaytanktoavoiddrawingmoistureintothetankasthelevel decreases.
Donotfillthetanktothetop.Fuelexpandsasitgetswarmandcan overflow.
Donotfillthefuelfilterswithfuelbeforeinstallingthem. Contaminatedfuelwillcauseacceleratedweartothefuelsystemparts.
Drainthewaterandsedimentfromanyfuelstoragetankbeforeitisrefilled.Thiswillhelpprevent waterand/orsedimentfrombeingpumpedfromthefuelstoragetankintotheenginefueltank.
FuelTypes
CaterpillarDieselEngineshavetheabilitytoburnawidevarietyoffuels.Thesefuelsaredivided intotwogeneralgroups,preferredandpermissible.
ThePreferredFuelsprovidemaximumengineservicelifeandperformance.Theyaredistillate fuels.Theyarecommonlycalleddieselfuel,MDOdiesel,furnaceoil,gasoilorkerosene(forcold weatheroperation).
Experiencehasproventhatdistillatefuelsmeetingthefollowingbasicspecificationswillresultin optimumengineperformanceanddurability.
CaterpillarstronglyencouragestheuseoffuelsthatmeetthePreferredFuelsspecification.
Thepermissiblefuelsarecrudeoilsorblendedfuels.Useofthesefuelscanresultinhigher maintenancecostsandreducedengineservicelife.
Crudeoilisusedtodescribeoils/fuelsthatarenotrefinedandareintheoriginalstateaswhen pumpedfromtheground.CertaintypesofcrudeoilscanbeburnedinCaterpillarEngines.
RefertoDieselFuelsandYourEngineSEBD0717orSAEJ313DieselFuelSpecificationsfor informationaboutfuelproperties,suchasignitionquality,gravity/density,viscosity,cloudpoint, sulfurcontent,etc.



FuelSulfurContent
Thepercentageofsulfurinthefuelwillaffecttheengineoilrecommendations.Fuelsulfuris chemicallychangedduringcombustiontoformbothsulfurousandsulfuricacid.Theseacids chemicallyattackmetalsurfacesandcausecorrosivewear.
Certainadditivesusedinlubricatingoilscontainalkalinecompoundsthatareformulatedto neutralizetheseacids.Themeasureofthisreservealkalinityinalubricatingoilisknownasits TotalBaseNumber(TBN).TBNisessentialtoneutralizetheacidsfromcombustiongasesandto minimizecorrosivewear.
AnyAPIclassificationperformanceoilshouldhavesufficientTBNforfuelswithlessthan0.5% sulfur.Forfuelswith0.5%to1.5%sulfurbyweight,engineoilmusthaveaTBNof20timesthe percentageoffuelsulfurasmeasuredbytheASTM(AmericanSocietyofTestingMaterials)D2896method.(ASTMD-2896cannormallybefoundatyourlocaltechnologicalsociety,library orcollege.)
Caterpillarrecommendsinfraredanalysis(inconjunctionwithwearmetalanalysis)ofusedoilin determiningtheeffectivenessofoilTBNandacidneutralization.
Forfuelwithsulfurexceeding1.5%byweight,useanoilwithaTBNof30andreducetheoil changeintervalbyonehalf.Also,infraredanalysisandwearmetalanalysisshouldbeusedto establishoilchangeintervals.
Periodicallyrequestfuelsulfurcontentinformationfromyourfuelsupplier.Fuelsulfurcontent canchangewitheachbulkdelivery.
Formoreinformationonoil,fuelsulfurcontent,etc.,refertoOilandYourEngine,SEBD0640,or contactyourCaterpillardealer.
Copyright1993-2024CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
ThuApr2510:55:30UTC+05302024

Product:EXCAVATOR
Model:235DEXCAVATOR8KJ
Configuration:235DEXCAVATOR8KJ00001-UP(MACHINE)POWEREDBY3306ENGINE
OperationandMaintenanceManual
235DEXCAVATOR
MediaNumber-SEBU6453-00PublicationDate-01/01/1992DateUpdated-11/10/2001
ScheduledOilSampling(S·O·S)
CaterpillarrecommendsusingScheduledOilSampling(S·O·S),atregularlyscheduledintervals, tocomplementagoodpreventivemaintenanceprogram.
TheCaterpillarScheduledOilSamplingProgram,(S·O·S),wasdevelopedtohelpCaterpillar usersrealizethehighestpossiblevaluefromtheirequipmentbyminimizingrepaircostsand maximizingavailability.TheS·O·Sprogramisaseriesofdiagnostictestswhichanalyzeused lubricatingoilsfromtheoilwettedcompartmentsoftheequipment.Byanalyzingtheusedoils, problemsmaybeidentifiedearly,beforeextensivecomponentfailureoccurs.Thisreducesrepair costanddown-time.
TheS·O·Sprogramiscoupledwithawiderangeofrepairoptionssothatwhenaproblemis identified,anappropriatematchedrepairplanisavailable.Thisofferstheuseramorecomplete servicetominimizerepaircostsandscheduledown-time.S·O·Scanalsomeasurethe effectivenessoftheuser'smaintenanceprogram.
ObtainS·O·SSample
ThereareseveralmethodsusedtoobtainS·O·Ssamples.
NOTE:Samplingmethodsrecommendedareinpreferenceorder.Ifoneofthefirsttwomethods isnotfeasible,thenusethedrain-streammethod.
*Useanin-linesamplingvalve.
*Useasamplingguninsertedintothesump.
*Usethedrainstreammethodwhenchangingoil.
Whenusingthedrain-streammethodtoobtainanoilsample,takethesampleaftersomeoilhas drainedoutandbeforethefinaldrainoil.Theoilatthebeginningorendofthedrainstreamisnot mixedwellenoughtoberepresentativeofcirculatingoilinthecompartmentandmaycarrydebris thatcangivefalseS·O·Sanalysisresults.
S·O·SAnalysis
S·O·Siscomposedofthreebasictests: *WearAnalysis
This is the sample of the manual Click on the download link for complete Manual