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303E CR Caterpillar Mini Hyd Excavator Operation and Maintenance Manual

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Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual 303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017

Foreword

SMCS-7606

LiteratureInformation

Thismanualshouldbestoredintheoperator'scompartmentintheliteratureholderorseatback literaturestoragearea.

Thismanualcontainssafetyinformation,operationinstructions,transportationinformation, lubricationinformationandmaintenanceinformation.

Somephotographsorillustrationsinthispublicationshowdetailsorattachmentsthatcanbedifferent fromyourmachine.Guardsandcoversmighthavebeenremovedforillustrativepurposes.

Continuingimprovementandadvancementofproductdesignmighthavecausedchangestoyour machinewhicharenotincludedinthispublication.Read,studyandkeepthismanualwiththe machine.

Wheneveraquestionarisesregardingyourmachine,orthispublication,pleaseconsultyourCat dealerforthelatestavailableinformation.

Safety

Thesafetysectionlistsbasicsafetyprecautions.Inaddition,thissectionidentifiesthetextand locationsofwarningsignsandlabelsusedonthemachine.

Readandunderstandthebasicprecautionslistedinthesafetysectionbeforeoperatingorperforming lubrication,maintenanceandrepaironthismachine.

Operation

s00037320

Theoperationsectionisareferenceforthenewoperatorandarefresherfortheexperiencedoperator. Thissectionincludesadiscussionofgauges,switches,machinecontrols,attachmentcontrols, transportationandtowinginformation.

Photographsandillustrationsguidetheoperatorthroughcorrectproceduresofchecking,starting, operatingandstoppingthemachine.

Operatingtechniquesoutlinedinthispublicationarebasic.Skillandtechniquesdevelopasthe operatorgainsknowledgeofthemachineanditscapabilities.

Maintenance

Themaintenancesectionisaguidetoequipmentcare.TheMaintenanceIntervalSchedule(MIS)lists theitemstobemaintainedataspecificserviceinterval.Itemswithoutspecificintervalsarelisted underthe"WhenRequired"serviceinterval.TheMaintenanceIntervalScheduleliststhepage numberforthestep-by-stepinstructionsrequiredtoaccomplishthescheduledmaintenance.Usethe MaintenanceIntervalScheduleasanindexor"onesafesource"forallmaintenanceprocedures.

MaintenanceIntervals

Usetheservicehourmetertodetermineservicingintervals.Calendarintervalsshown(daily,weekly, monthly,etc.)canbeusedinsteadofservicehourmeterintervalsiftheyprovidemoreconvenient servicingschedulesandapproximatetheindicatedservicehourmeterreading.Recommendedservice shouldalwaysbeperformedattheintervalthatoccursfirst.

Underextremelysevere,dustyorwetoperatingconditions,morefrequentlubricationthanisspecified inthemaintenanceintervalschartmightbenecessary.

Performserviceonitemsatmultiplesoftheoriginalrequirement.Forexample,atevery500service hoursor3months,alsoservicethoseitemslistedunderevery250servicehoursormonthlyandevery 10servicehoursordaily.

CaliforniaProposition65Warning

DieselengineexhaustandsomeofitsconstituentsareknowntotheStateofCaliforniatocause cancer,birthdefects,andotherreproductiveharm.

Batteryposts,terminalsandrelatedaccessoriescontainleadandleadcompounds.Washhandsafter handling.

CertifiedEngineMaintenance

Propermaintenanceandrepairisessentialtokeeptheengineandmachinesystemsoperating correctly.Astheheavydutyoff-roaddieselengineowner,youareresponsiblefortheperformanceof therequiredmaintenancelistedintheOwnerManual,OperationandMaintenanceManual,and ServiceManual.

Itisprohibitedforanypersonengagedinthebusinessofrepairing,servicing,selling,leasing,or tradingenginesormachinestoremove,alter,orrenderinoperativeanyemissionrelateddeviceor elementofdesigninstalledonorinanengineormachinethatisincompliancewiththeregulations (40CFRPart89).Certainelementsofthemachineandenginesuchastheexhaustsystem,fuel system,electricalsystem,intakeairsystemandcoolingsystemmaybeemissionrelatedandshould notbealteredunlessapprovedbyCaterpillar.

MachineCapacity

Additionalattachmentsormodificationsmayexceedmachinedesigncapacitywhichcanadversely affectperformancecharacteristics.Includedwouldbestabilityandsystemcertificationssuchas brakes,steering,androlloverprotectivestructures(ROPS).ContactyourCatdealerforfurther information.

CatProductIdentificationNumber

EffectiveFirstQuarter2001theCatProductIdentificationNumber(PIN)haschangedfrom8to17 characters.Inanefforttoprovideuniformequipmentidentification,Caterpillarandotherconstruction equipmentmanufacturersaremovingtocomplywiththelatestversionoftheproductidentification numberingstandard.Non-roadmachinePINsaredefinedbyISO10261.ThenewPINformatwill applytoallCatmachinesandgeneratorsets.ThePINplatesandframemarkingwilldisplaythe17 characterPIN.Thenewformatwilllooklikethefollowing:

2.MachineDescriptor(characters4-8)

3.CheckCharacter(character9)

4.MachineIndicatorSection(MIS)orProductSequenceNumber(characters10-17).Thesewere previouslyreferredtoastheSerialNumber.

MachinesandgeneratorsetsproducedbeforeFirstQuarter2001willmaintaintheir8characterPIN format.

Componentssuchasengines,transmissions,axles,etc.andworktoolswillcontinuetousean8 characterSerialNumber(S/N).

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Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual 303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017

i05150549

Illustration2g01191685

Illustration3g03306679

1.Unlatchtherightaccessdoorandfullyopen.

Note:Whenopeningright-handaccessdoormakesuregasspring(1)locksintoplace.

OperationofthePushButtonReleasefortheAccessDoor

Whenclosingtheaccessdoor,onlyoperatethepush-buttonreleaseby hand.

Failuretoremovehandsfromthepush-buttonreleasebeforeclosingthe accessdoorcouldresultinpersonalinjury.

Besuretoremovehandsfromthepush-buttonreleasebeforecompletely closingtheaccessdoor.

2.Inordertoclosetheright-handaccessdoor,presspush-buttonrelease(2)inordertounlockthe gasspring.

3.Releasethepushbuttonandslowlyclosetheright-handaccessdoor.

AccessCover(Battery)

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Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual

303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017

AirCleanerDustValve-Clean/Inspect

SMCS-1051-571-VL

1.Opentherightsideaccessdoor.

2.Theairfilterhousingislocatedontherightsideoftheenginecompartment. Illustration1g02792317

3.Checkthedustvalveafterevery10servicehoursorattheendofeachday.Actuatethevalve bysqueezingthelipsofthevalveinordertoremoveanyaccumulateddebris.

4.Closetherightsideaccessdoor.

i04661209

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Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual 303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017

Battery-Clean

SMCS-1401-070

Cleanthebatterysurfacewithacleancloth.Keeptheterminalscleanandkeeptheterminalscoated withpetroleumjelly.Installthepostcoverafteryoucoattheterminalpostwithpetroleumjelly.

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i00934864

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Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual

303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017

Battery-Recycle

SMCS-1401-561

Alwaysrecycleabattery.Neverdiscardabattery.

Alwaysreturnusedbatteriestooneofthefollowinglocations:

•Abatterysupplier

•Anauthorizedbatterycollectionfacility

•Recyclingfacility

Copyright1993-2020CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.

i06543763

WedAug2612:24:20UTC+05302020

PreviousScreen

Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual 303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017

BatteryHold-Down-Tighten

SMCS-7257

i01586700

Tightenthehold-downsforthebatteryinordertopreventthebatteriesfrommovingduringmachine operation.

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Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual 303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017

BatteryorBatteryCable-Inspect/Replace

SMCS-1401-040;1401-510;1401-561;1402-040;1402-510

Personalinjurycanresultfrombatteryfumesorexplosion.

Batteriesgiveoffflammablefumesthatcanexplode.Electrolyteisan acidandcancausepersonalinjuryifitcontactstheskinoreyes.

Preventsparksnearthebatteries.Sparkscouldcausevaporstoexplode. Donotallowjumpercableendstocontacteachotherortheengine. Improperjumpercableconnectionscancauseanexplosion.

Alwayswearprotectiveglasseswhenworkingwithbatteries.

1.TurntheenginestartswitchkeytotheOFFposition.TurnalloftheswitchestotheOFF position.Removethekey.

2.Disconnectthenegativebatterycableatthebattery.

3.Disconnectthepositivebatterycableatthebattery.

4.Disconnectthebatterycablesfromthemachineifnewcablesareneeded.

5.Makenecessaryrepairsorreplacethebattery.

6.Connectthebatterycablestothemachineifthebatterycableswereremoved.

i01999587

This is the sample of the manual Click on the download link for complete Manual

7.Connectthepositivebatterycableofthebattery.

8.Connectthenegativebatterycableofthebattery.

9.Installthekeyintotheenginestartswitch.

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Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual

303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017 i05326061

Belt-Inspect/Adjust/Replace

SMCS-1357-025;1357-040;1357-510;1397-025;1397-040;1397-510

NOTICE

TheV-beltmustbetensionedcorrectly.Failuretotensionthebelt properlycouldcausedamagetothebeltand/ortotheairconditioner compressor.

Formaximumengineperformanceandmaximumutilizationofyourengine,inspectthebeltsforwear andforcracking.Checkthebelttension.Adjustthebelttensioninordertominimizebeltslippage. Beltslippagewilldecreasethebeltlife.Beltslippagewillalsocausepoorperformanceofthe alternatorandofanydrivenequipment.

Ifnewbeltsareinstalled,recheckthebeltadjustmentafter30minutesofoperation.Iftwobeltsor morearerequiredforanapplication,replacethebeltsinbeltsets.Ifonlyonebeltofapairisreplaced, thenewbeltwillcarrymoreload.Thisisduetothefactthattheolderbeltsarestretched.The additionalloadonthenewbeltcouldcausethenewbelttobreak.

WaterPumpBelt,FanDriveBelt,andAlternatorBelt

(1)Adjustingbolt (2)Adjustingbracket (3)Alternatormountingbolt (4)Alternatormountingbolt (5)Belt (6)Bolt (A)Alternatorpulley (B)Crankshaftpulley (C)Waterpumppulley

1.Opentheengineaccessdoor.

2.Removethefanguard.

3.Applyapproximately98N(22lb)offorcemidwaybetweenthepulleys.

4.Measurethedeflectionofthebelt.Thebeltshoulddeflect7to9mm(9/32to11/32inch).

5.Ifthedeflectionisnotcorrect,loosenbolt(6),andalternatormountingbolts(3)and(4).Turn adjustingbolt(1)counterclockwiseinordertomovethealternatorforwardtoadjustbelt(5)to thespecifiedtension.

6.Whentheadjustmentiscorrect,tightenbolt(6),andalternatormountingbolts(3)and(4) securely.

7.Checkthedeflectionofthebeltagain.

8.Closetheengineaccessdoor.

Note:Ifanewbeltisinstalled,checkthebeltadjustmentagainafter30minutesofengineoperation attheratedenginespeed.

WedAug2612:25:22UTC+05302020

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Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual 303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017

BladeLinkage-Lubricate

SMCS-6060-086

i02304927

Loweralltheworktoolsandthebladetotheground. Wipeallgreasefittingsbeforelubricating. Illustration1g00823677

1.Applylubricanttogreasefitting(2)attheheadendofthebladecylinder.Applylubricantto greasefitting(1)attherodendofthebladecylinder.

2.Applylubricanttogreasefittings(3)and(4)forthebladelinkage.

AngleBlade(IfEquipped)

Illustration2g01154347

1.Applylubricanttogreasefitting(2)attheheadendofthebladecylinder.Applylubricantto greasefitting(1)attherodendofthebladecylinder.

2.Applylubricanttogreasefittings(3)and(4)forthebladelinkage.Applylubricanttogrease fittings(5)forthecenterpinoftheangleblade.

3.Applylubricanttogreasefitting(6)attheheadendofthecylinderoftheangleblade.Apply lubricanttogreasefitting(7)attherodendofthecylinderoftheangleblade.

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Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual

303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017

BoomandStickLinkage-Lubricate

SMCS-6501-086;6502-086

i02386747

Note:Caterpillarrecommendstheuseof5%molybdenumgreaseforlubricatingtheboomandstick linkage.RefertoSpecialPublication,SEBU6250,"CaterpillarMachineFluidsRecommendations"for moreinformationongrease.

Positionthemachineintotheserviceposition.

Wipeallfittingsbeforeyouapplylubricant.

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Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual

303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017

BoomSwingCylinderPins-Lubricate

SMCS-5105-086

1.Lowerallworktoolstotheground.

i04658370

2.Wipeallgreasefittingsbeforeyoulubricatethegreasefittings. Illustration1g01191058

3.Applylubricanttothegreasefittingfortherodendoftheboomswingcylinder.

4.Applylubricanttothegreasefittingfortheheadendoftheboomswingcylinder.

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Product:MINIHYDEXCAVATOR

Model:303ECRMINIHYDEXCAVATORCK3

Configuration:303ECRMiniHydraulicExcavatorCK300001-UP(MACHINE)POWEREDBYC1.3Engine

OperationandMaintenanceManual

303ECRMiniHydraulicExcavators

MediaNumber-M0073843-07PublicationDate-01/08/2015DateUpdated-03/11/2017

Boom,Stick,andFrame-Inspect

SMCS-6501;6502;6506

Allearthmovingequipmentispronetoahighdegreeofwear.Regularinspectionsforstructural damagearenecessary.

Theintervalbetweentheseinspectionsdependsonthefactorsthatfollow.

•Theageofthemachine

•Theseverityoftheapplication

•Theloadsthathavebeencarriedonthemachine

•Theamountofroutineservicingthathasbeencarriedout

Ifthemachinehasbeeninvolvedinanykindofaccident,themachinemustbeinspectedthoroughly. Inspectthemachineregardlessofthedateofthelastinspection.

Themachinemustbecleanbeforethemachineisinspected.

Properrepairofframesandstructuresrequiresspecificknowledgeofthefollowingsubjects.

•Materialsthathavebeenusedtomanufacturetheframemembers

•Framememberconstruction

•Repairtechniquesthatarerecommendedbythemanufacturer.

ConsultyourCaterpillardealerifrepairsarenecessary.YourCaterpillardealerisqualifiedtocarry outrepairsonyourbehalf.

AllrepairsshouldbecarriedoutbyaCaterpillardealer.Ifyoucarryoutyourownrepairs,contact yourCaterpillardealerforadviceaboutproperrepairtechniques.

i02860835

Particularattentionshouldbegiventoallweldedstructures.Thefollowingitemsshouldbe thoroughlyinspectedforcracksandfordefects:

•Boom

•Stick

•Blade

•Liftingpoints

•Upperframe

•Lowerframe NOTICE

Theareashighlightedareofparticularimportancebutotherareas mustnotbeneglected.Theentirestructuremustbecarefully examined.

Boom

Illustration1g01425291

Checkallweldedjointsandcheckthemountingpointsforthecylinder.

Illustration2g01425293

Checkallweldedjointsandcheckthemountingpointsforthecylinder.

Blade

Illustration3g01425286

Checkallweldedjointsandcheckthemountingpointsforthecylinder.

LiftingPoints

Illustration4g01425213

Illustration5g00309343

Checktheapprovedliftingpointscarefully.Checkthewelds.Checkthattheplatesarenot excessivelybent.Checkthattheliftingholesarenotdeformed.

UpperFrame

Illustration6g01425289

Checkfordamagedpanels.Specificallylookforanydamagetothecabordamagetothecanopythat mightinvalidatethecertification.Thecaborthecanopyisasafetydevicethatmustbemaintainedin goodcondition.Checkforloosehardwareormissinghardware.

LowerFrame

Illustration7g01425287

Checktheweldjointsinthelowerstructure.Checkforloosehardwareormissinghardware.Check theringofboltsthatsecuretheswinggear.

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