312B Caterpillar Excavator Operation and Maintenance Manual by quality service repair manual

Product:EXCAVATOR

Model:312BEXCAVATOR2NS

Configuration:312B&312BLTRACK-TYPEEXCAVATORS2NS00001-UP(MACHINE)POWEREDBY3064ENGINE

MediaNumber-SEBU6974-01PublicationDate-01/05/1999DateUpdated-09/10/2001

Foreword

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).

SunAug2702:07:45UTC+05302023

Product:EXCAVATOR

Model:312BEXCAVATOR2NS

Configuration:312B&312BLTRACK-TYPEEXCAVATORS2NS00001-UP(MACHINE)POWEREDBY3064ENGINE

OperationandMaintenanceManual 311B,312Band312BLExcavators

MediaNumber-SEBU6974-01PublicationDate-01/05/1999DateUpdated-09/10/2001

AirConditioner-Test-IfEquipped

SMCS-7320-081

Inhalingairconditionerrefrigerantgasthroughalitcigaretteorother smokingmethodorinhalingfumesreleasedfromaflamecontactingair conditionerrefrigerantgascancausebodilyharmordeath.Donot smokewhenservicingairconditionersorwhereverrefrigerantgasmay bepresent.

NOTICE

Whenaddingorreplacingrefrigerant,useonlyrefrigerant recommendedbyCaterpillar.Systemdamagecanresult.

i01040227

Illustration1g00537105

1.StarttheengineandturntheenginespeeddialtotheMEDIUMSPEEDposition.

Illustration2g00102191

2.Opentheaccessdoorontheleftsideofthemachine.

Illustration3g00537123

3.Lookatthereceiver-dryersightglassandnotetheamountofrefrigerant.

Insightglass(A),onlyafewbubblesarepresent.Thisindicatesthatthereisa satisfactoryamountofrefrigerant.

Insightglass(B),manybubblesarepresent.Thisindicatesthatthereisalackof refrigerant.

Insightglass(C),smallamountsofvaporarepresent.Thisindicatesthatthereis almostnorefrigerant.

Iftheconditioninsightglass(B)orinsightglass(C)isnoticed,consultyourauthorized Caterpillardealerforrecharging.

Operationoftheairconditionerwithoutcorrectamountsofrefrigerantcouldcausefailure ofthecompressor.

Theairconditionershouldbekeptreadyforoperationyear-round.Operatetheair conditionerforafewminutesduringtheweekinordertorotatethecompressor.This preventstheleakageofrefrigerant.Theleakageiscausedbyadrysealonthecompressor.

4.Closetheaccessdoor.

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

Product:EXCAVATOR

Model:312BEXCAVATOR2NS

Configuration:312B&312BLTRACK-TYPEEXCAVATORS2NS00001-UP(MACHINE)POWEREDBY3064ENGINE

OperationandMaintenanceManual 311B,312Band312BLExcavators

MediaNumber-SEBU6974-01PublicationDate-01/05/1999DateUpdated-09/10/2001

AirConditioner/CabHeaterFilter(Recirculation)Inspect/Replace

SMCS-7309-040;7309-510

NOTICE

Anairrecirculationfilterelementpluggedwithdustwillresultin decreasedperformanceandservicelifetotheairconditionerorcab heater.

Topreventdecreasedperformance,cleanthefilterelement,as required.

i01970040

Illustration1g00103068

Theairconditionerfilterisonthelowerleftsideofthecab.

1.Toremovetheelement,slidetheelementstraightup.

2.RefertoOperationandMaintenanceManual,"GeneralHazardInformation"beforeusing pressureairtocleantheairfilterelement.

3.Cleanthefilterelementwithamaximumof200kPa(30psi)pressureair.

4.Afteryoucleanthefilterelement,inspectthefilterelement.Ifthefilterelementisdamaged orbadlycontaminated,useanewfilterelement.Makesurethatthefilterelementisdry.

SunAug2702:15:55UTC+05302023

Product:EXCAVATOR

Model:312BEXCAVATOR2NS

Configuration:312B&312BLTRACK-TYPEEXCAVATORS2NS00001-UP(MACHINE)POWEREDBY3064ENGINE

MediaNumber-SEBU6974-01PublicationDate-01/05/1999DateUpdated-09/10/2001

Battery-Clean

SMCS-1401-070

Cleanthebatterysurfacewithacleancloth.Keeptheterminalscleanandkeeptheterminals coatedwithpetroleumjelly.Installthepostcoverafteryoucoattheterminalpostwithpetroleum jelly.

SunAug2702:16:07UTC+05302023

i00934864

Product:EXCAVATOR

Model:312BEXCAVATOR2NS

Configuration:312B&312BLTRACK-TYPEEXCAVATORS2NS00001-UP(MACHINE)POWEREDBY3064ENGINE

OperationandMaintenanceManual 311B,312Band312BLExcavators

MediaNumber-SEBU6974-01PublicationDate-01/05/1999DateUpdated-09/10/2001

Battery-Recycle

SMCS-1401-561

Alwaysrecycleabattery.Neverdiscardabattery.

Alwaysreturnusedbatteriestooneofthefollowinglocations:

•Abatterysupplier

•Anauthorizedbatterycollectionfacility

•Recyclingfacility

PrivateNetworkForSISLicensees.

SunAug2702:16:32UTC+05302023

i00059329

Product:EXCAVATOR

Model:312BEXCAVATOR2NS

Configuration:312B&312BLTRACK-TYPEEXCAVATORS2NS00001-UP(MACHINE)POWEREDBY3064ENGINE OperationandMaintenanceManual

MediaNumber-SEBU6974-01PublicationDate-01/05/1999DateUpdated-09/10/2001

BatteryHold-Down-Tighten

SMCS-7257

Tightenthehold-downsforthebatteryinordertopreventthebatteriesfrommovingduring machineoperation.

SunAug2702:16:48UTC+05302023

i00934872

Product:EXCAVATOR

Model:312BEXCAVATOR2NS

Configuration:312B&312BLTRACK-TYPEEXCAVATORS2NS00001-UP(MACHINE)POWEREDBY3064ENGINE

MediaNumber-SEBU6974-01PublicationDate-01/05/1999DateUpdated-09/10/2001 i00124321

Battery,BatteryCableorBatteryDisconnectSwitchReplace

SMCS-1401-510;1402-510

1.TurntheenginestartswitchkeytotheOFFposition.TurnalloftheswitchestotheOFF position.

2.TurnthebatterydisconnectswitchtotheOFFposition.Removethedisconnectswitchkey.

3.Disconnectthebatterycableatthebatterydisconnectswitch.Thebatterydisconnectswitch isconnectedtothemachineframe.

Note:Donotallowthedisconnectedbatterycabletocontactthebatterydisconnectswitch.

4.Disconnectthenegativebatterycableatthebatterythatisconnectedtothebattery disconnectswitch.Ifthemachinehasfour12voltbatteries,disconnectthenegativebattery cablesoftwoofthebatteries.

5.Makeanynecessaryrepairsorreplacethebattery.

6.Reconnectthenegativebatterycableatthebatterythatisconnectedtothebattery disconnectswitch.

7.Reconnectthebatterycableatthebatterydisconnectswitch.

8.InstallthedisconnectswitchkeyandturnthebatterydisconnectswitchtotheONposition.

SunAug2702:17:08UTC+05302023

Product:EXCAVATOR

Model:312BEXCAVATOR2NS

Configuration:312B&312BLTRACK-TYPEEXCAVATORS2NS00001-UP(MACHINE)POWEREDBY3064ENGINE

MediaNumber-SEBU6974-01PublicationDate-01/05/1999DateUpdated-09/10/2001

BladeLinkage-Lubricate

SMCS-6060-086

ServiceanewmachineafterEvery10ServiceHoursonlywithintheinitial100servicehours.

Aftertheinitial100servicehoursofoperation,servicetheboom,thestick,thebucket,andthe bladelinkageafterEvery50ServiceHours.

Note:Ifthemachineisoperatedundersevereconditionsthatmightcauseabrasivematerialto enterthecylinderbearingsorifthehydraulichammerisused,servicetheboom,thestick,the bucket,andthebladelinkageafterEvery10ServiceHours.

Wipeallfittingsbeforeyouapplylubricant.

i00969707

1.Applylubricantthroughfittings(1)and(2).Thesefittingsareonthebladecylinderrod.

2.Applylubricantthroughfittings(3)and(4).Thesefittingsarelocatedontheheadendofthe bladecylinder.

3.Applylubricantthroughfittings(5)and(6).Thesefittingsareonthebarthatsupportsthe blade.

SunAug2702:17:20UTC+05302023

Product:EXCAVATOR

Model:312BEXCAVATOR2NS

Configuration:312B&312BLTRACK-TYPEEXCAVATORS2NS00001-UP(MACHINE)POWEREDBY3064ENGINE

OperationandMaintenanceManual 311B,312Band312BLExcavators

MediaNumber-SEBU6974-01PublicationDate-01/05/1999DateUpdated-09/10/2001

BoomBasePins-Lubricate

SMCS-6501-086

i03865131

Note:Caterpillarrecommendstheuseof5%molybdenumgreaseforlubricatingtheboom linkage.RefertoSpecialPublication,SEBU6250,"CaterpillarMachineFluidsRecommendations" formoreinformationonmolybdenumgrease.

Whentheboompinisreplaced,lubricatethenewboompin.

1.Parkthemachineonalevelsurfaceandlowerthebuckettotheground.

Illustration2g00537172

Typicalexample (1)Ventplug (2)Fitting

Note:Ventplug(1)andfitting(2)areonthebaseoftheboom.

2.Removeventplug(1).

3.Applylubricantthroughfitting(2)untillubricantcomesoutoftheplughole.

4.Installventplug(1).

SunAug2702:17:39UTC+05302023

Product:EXCAVATOR

Model:312BEXCAVATOR2NS

Configuration:312B&312BLTRACK-TYPEEXCAVATORS2NS00001-UP(MACHINE)POWEREDBY3064ENGINE

OperationandMaintenanceManual 311B,312Band312BLExcavators

MediaNumber-SEBU6974-01PublicationDate-01/05/1999DateUpdated-09/10/2001

Boom,StickandBucketLinkage-Lubricate

SMCS-6501-086;6502-086;6513-086

Note:Caterpillarrecommendstheuseof5P-0960MolybdenumGreaseforlubricatingtheboom, stickandbucketlinkage.RefertoOperationandMaintenanceManual,SEBU6250,"Lubricating Grease"formoreinformationonmolybdenumgrease.

Illustration1g00103956

ServiceanewmachineafterEvery10ServiceHoursonlywithintheinitial100servicehours.

Aftertheinitial100servicehoursofoperation,servicetheboom,thestick,andthebucketlinkage afterEvery50ServiceHours.

i00964808

Wipeallfittingsbeforeyouapplylubricant.

Illustration2g00103847

1.Applylubricantthroughthefittingatthebaseofeachboomcylinder.

Illustration3g00491565

2.Thefittingsareatthebaseoftheboom.Thefittingscanbeservicedfromtheplatformon thestoragebox.Tolubricatethelowerboombearings,applylubricantthroughfittings(1) and(2).Tolubricatetheboomcylinderrod,applylubricantthroughfittings(3)and(4).To lubricatethestickcylinderhead,applylubricantthroughfitting(5).

Note:Toensureproperlubricationofthelowerboombearingsandoftheboomcylinder rodendbearings,lubricantshouldbeappliedthroughfittings(1),(2),(3),and(4).Apply lubricantfirstwhentheboomisraisedandanyattachmentissuspended.Thenapply lubricantwhentheboomisloweredandtheattachmentisrestedonthegroundwithaslight downwardpressure.

Illustration4g00103850

3.Applylubricantthroughfittings(6),(7),and(8).Thesefittingsarelocatedonthelink.

4.Applylubricantthroughfittings(9),(10),and(11).Thesefittingsarelocatedonthebucket.

Illustration5g00103854

5.Applylubricantthroughfitting(12).Fitting(12)isattheconnectionpointoftheboomand thestick.

Illustration6g00103853

6.Applylubricantthroughfitting(13)onthestickcylinderrod.Applylubricantthrough fitting(14).Fitting(14)isattheconnectionpointoftheboomandthestick.Applylubricant throughfitting(15)onthebucketcylinderheadend.

SunAug2702:18:17UTC+05302023

Product:EXCAVATOR

Model:312BEXCAVATOR2NS

Configuration:312B&312BLTRACK-TYPEEXCAVATORS2NS00001-UP(MACHINE)POWEREDBY3064ENGINE

OperationandMaintenanceManual 311B,312Band312BLExcavators

MediaNumber-SEBU6974-01PublicationDate-01/05/1999DateUpdated-09/10/2001

BucketLinkage-Inspect/Adjust

SMCS-6513-025;6513-040

Unexpectedmachinemovementcancauseinjuryordeath.

Toavoidpossiblemachinemovement,movethehydrauliclockout controltothelockedpositionandattachaSpecialInstruction, SEHS7332,"DoNotOperate"orsimilarwarningtagtothehydraulic lockoutcontrol.

NOTICE

Improperlyadjustedbucketclearancecouldcausegallingonthe contactsurfacesofthebucketandstick,resultinginexcessivenoise and/ordamagedO-ringseals.

i03902571

Illustration1g00101687 (1)Nogap.(2)Stickboss.(3)Bucketclearance.(4)Shims.(5)Pin.(6)Plate.(7)Bolts.(8)Washers.(9)Location. (10)Flange.(11)Bucketboss.

Theclearanceofthebucketcontrollinkageonthismachinecanbeadjustedbyshimming.Ifthe gapbetweenthebucketandthestickbecomesexcessive,adjustbucketclearance(3)to0.5to1 mm(0.02to0.04inch).

Twoshimsofdifferentthicknessareusedatlocation(9).Thethicknessesoftheshimsare0.5 mm(0.02inch)and1.0mm(0.04inch).

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