DOWNLOAD PDF: Cat Bucyrus Electrohydraulic control unit, 8 functions Operating Manual (1)

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Amendmentsandalterationstothispublicationarenotsubject tonotification.Caterpillarreservesallrightstothispublication. Itscontentisprotectedbycopyrightlaws.Nopartofthispublicationmay bereproducedortransferredinanywayorformwithoutthepriorwritten approvalofCaterpillar.

Caterpillardeclinesanyliabilityfordirectorindirectconsequencesof printingerrors.

Wereservetherighttointroducemodificationsasaresultoftechnical developmentswithoutpreviousnotice.

CaterpillarGlobalMiningEuropeGmbH,Lünen2012E ACaterpillarInc.Company

Aboutthismanual

Aboutthismanual

Thischaptercontainsimportantinformationthatmakesiteasierfor youtousethismanual.Italsoprovidesyouwithinformationonthe structureofthemanualandthesymbolsused.

Beforestartingwork

Usinganoperatingmanualthatwasnotspecificallywrittenforthe controlunitconcernedcanresultinasafetyhazardforyourselfand others.Ensurethatthespecificationsonthecontrolunitcomply withthespecificationsintheoperatingmanual.

Thisoperatingmanualisdesignedfor:

Electrohydr.controlunit-8functions Devicenumber81541490000000

andisonlypermittedtobeusedforcontrolunitsofthistype.Only usetheoperatingmanualwhichappliestotherespectivecontrol unit.Failuretodosowillposeadangertoyourselfandothers.

Itisabsolutelynecessarytoensurethatallpersonsworkingwithor onthecontrolunitalwayshaveunrestrictedaccesstothecontents ofthecurrent,applicableoperatingmanuals.

Personsforwhomthisoperatingmanualisintended

Thisoperatingmanualisintendedforeveryoneconcernedwith installing, servicing, repairing, operatingand removal.

Thesupervisorswhoinitiatetheaboveworkorsuperviseitmust alsofollowthisoperatingmanual.

Purposeofthisoperatingmanual

Thisoperatingmanualisintendedtohelpyouworkeconomically andsafelywithourproduct.Itcontainsimportantinformationonall theactivitiesrelatedtothecontrolunit.

Readthisoperatingmanualcompletelyandatyourleisure.Pay specialattentiontothesafetyinstructions. Trytomemorizetheappearanceandmeaningofthesafetyand instructionsymbols.

Payspecialattentiontochapter2,“Yoursafety”.Thischaptercontainsimportantinformationindicatingpossiblehazards.

Observethisinformationandfollowtheinstructionsinthisoperatingmanual.Thisistheonlywaythatyoucankeeptheoperating costsdownandretainyourrightstomakeaclaimunderthewarranty.

Beforestartingwork

Charactersandsymbolsused

Thefollowingcharactersandsymbolsareusedforsafetyinstructionsandimportantinformationinthisoperatingmanual.

Trytomemorizethesymbolsandtheirmeanings.

Danger!

Pointsinthetextmarkedwiththissymboldrawyourattention toimmediatelyimpendingdanger.Possibleconsequencesare veryseriousinjuryorevendeath.

Warning!

Thesepointscontaininformationonhazardoussituations. Possibleconsequencesareveryseriousinjuryorevendeath.

Caution!

Thissymboldrawsattentiontodangeroussituations.Possible consequencesareminortomoderatelyseriousinjuriesand damagetothemachine.

Notice!

Pointsinthetextmarkedwiththissymboldrawattentionto harmfulsituations.Possibleconsequencesareminordamage tothemachineordamageintheimmediatevicinity.

Important!

Pointsinthetextmarkedwiththissymbolcontainusefultips andinformationintendedtomakeworkeasierforyou.Theydo notwarnaboutharmfulordangeroussituations.

Itemsinlistsaremarkedwithbullets.

–Pointsinsub-listsaremarkedwithalongdashatthestartof theline.

. Pointsinthetextmarkedinthiswaydescribeindividualwork steps.Followtheseinstructionsstep-by-step.Itwillhelpyou carryoutyourworkfasterand,moreimportantly,moresafely.

Yoursafety

Thischapterprovidesvitalinformationforyoursafety.

Payspecialattentiontothischapter.Thesafetyinstructionsand rulesofprocedurewillhelpyoutoavoidhazardoussituationsand toperformthenecessaryworkassafelyaspossible.

Thecontrolunitwasmanufacturedinaccordancewithstateofthe artandgenerallyrecognizedsafetystandardsandregulations. However,aresidualriskstillexistswhichmayinvolveyougetting intohazardoussituationswhenworkingwithoronthecontrolunit. Thesemay,forexample,becausedbyunforeseeableexternal influences,machinedamageoroperatingerrors.

Inadditiontothisoperatingmanual,alsobesuretoobservethe respectivelegalprovisionsandregulationsforaccidentprevention inyourcountry.

Observethesafetyandaccidentpreventionregulations: oftheminingcompany, oftheminesinspectorateand oftheminingsupervisoryauthorities

Personnel

Personsemployedintheoperation,repairandoverhaulof hydraulicand/orelectrohydrauliccontrolcomponentsmustbespeciallyqualified.Inadditiontohavinghadtraininginminingtechnologythefollowingminimumrequirementsmustbemet.

Operationandmaintenance

Operationandmaintenanceoftheshieldcontrol systemmayonly beperformedbytrainedpersonnel. Thetrainingmustbespeciallytailoredtothetypeofcontrolunit actuallybeingused.

Thecontentoftheoperatingmanual,especiallythechapteron safety,mustconstituteapartofthistraining.

Theymustpossessandfurnishproofofadequatefamiliaritywith the mechanical system hydraulicsystemand controlsystem.

Repairandmaintenance

Ingeneral,repairworkmayonlybeperformedbypersonswho havetheknowledgeandskillstomeetthespecialrequirements andhavebeenadequatelytrainedintherepairoftheequipment. Repairworkonandoverhaulof: controlunits, workingvalves, pilotvalves, safetycomponentssuchaspressurereliefvalvesetc.

shallbeperformedonlyCaterpillarserviceengineersorbyspecially trainedpersonneloftheminingcompany.

Operatingconditions

Intendeduse

Theelectrohydrauliccontrolunitisexclusivelyconstructedand manufacturedasacomponentoftheshieldsupportcontrol system. Itmayonlyusedinconjunctionwithanelectroniccontrolsystem, forexampleaPMC®-Rcontrolsystem. Onlyusethecontrolunitasintended.

Theintendedusesareasfollows:

Theelectrohydrauliccontrolunit,togetherwithanelectronic controlunit-forinstanceaPMC®-Rcontrolunit-,formsan electrohydraulicshieldcontrolsystem.Thisisusedtocontrol shieldsupportfunctions.Togethertheyarepartofaneighboringcontrolsystemforelectrohydraulicshields upportsandare intendedforuseinundergroundmining.

Theelectrohydrauliccontrolunitisanessentialpartoftheelectrohydraulicshieldcontrolsystem.Thefunctionsmaynotbe operateddirectlyattheelectrohydrauliccontrolunit,butrather onthecorrespondingelectroniccontrolunitlocatedinoneof theneighboringsupports.Thepilotvalvesontheelectrohydrauliccontrolunitareactivatedmanuallyorviaaprogram usingthecontrolunit.

Theelectrohydrauliccontrolunitisalsousedasa“controlunit” intwotypesofexceptionalcases: -emergencyoperationand -repairoperation.

Theindividualfunctionsoftheshieldsupportareactuateddirectlyonthepilotvalveoftheelectrohydrauliccontrolunit.In justifiedexceptionalcasesandinstrictcompliancewiththecorrespondingsafetyregulationsofthemineoperator,thefunctionsofasupportcanalsobeactuatedwhentheelectronic controlunitisblockedorithasfailed.

Unauthorizeduse

Alluse,whichisnotexpresslydeclaredasintended,isregardedas unauthorizeduse.

Unauthorizeduseincludes:

theuseoftheelectrohydrauliccontrolunitsas“controlunits”for theoperationofsupportfunctionsduringnormalshieldunit operation.

Actuatingtheshields exclusively viathepilotvalves bypressingabutton,isregardedasunintendeduseasitisnotpossible, whichisnotauthorized,tocontroltheshieldfroma neighboringshield.

Unauthorizedusecanendangeryourselfandothers.Youmightbe killedorseriouslyinjured.

Youshouldthusonlyusetheelectrohydrauliccontrolunitasintended.

Caterpillarwillacceptnoresponsibilityfortheconsequencesof unauthorizeduse.

Safetyinstructions

Thefollowingalwaysapplies: Alwaysconcentrateonyourwork.

Itisalsoimperativethatyoufollowtheoperatingmanualforthe supportandthecontrolunit.

Alwaysfamiliarizeyourselfwiththeworkingenvironment,before startingwork.

Alwayskeepoutofanyshieldwhichisnotset. Alwayswearpersonalprotectiveequipment.

Observetheacousticandvisualstart-upwarnings.Payspecial attentiontothestart-upwarningsfortheconveyorandfortheminingequipment.

Onlyusecontrolunitswhichareinatechnicallyflawlesscondition. PresstheEMERGENCYSTOPswitchimmediately,intheeventof faultsorirregularitiesinoperation.Notifyyoursupervisorofany peculiarity,sothatnecessaryactioncanbetakenimmediately.

Iftheshieldisequippedwithanelectrohydrauliccontrolunit,you mustlock-outtheshieldbypressingthesupportlock-outswitch (repairswitch).Thismeanstheshieldcannotbecontrolledviathe controlunit.

Pressthesupportlock-outswitchwhenperforming: maintenancework, inspectionwork, repairwork andduringprolongedpresenceintheshield. Neverreachintoorenterareasbetweenmachinecomponents whichcanmove.Thisappliesespeciallytothe: sideseals, bases, relaybarassemblies, lemniscaticlinks, hydraulicpropsandcylinders, canopiesand flippers.

Storageandtransport

Neverstorematerialsofanykindinthetravelwayorinyourworkingarea.

Toavoidhinderingorendangeringthefacecrew,immediately removeanyfaultycomponentsfromtheface.

Neverstorefaultypartswithgoodparts.Thiswayyoucanavoid inadvertentreinstallationofthesefaultycomponentssomewhere else.Havethesefaultycomponentsrepaired.

Observethespecifiedstorageperiodsandthestorageinstructions.

Installation

Mechanicallysecureallmovingpartsbeforeyoudepressurizethe hydraulicsystem.

Asamatterofprinciple,onlyworkondepressurizedhydraulic systems.

Makesurethatnodirtorimpuritiescangetintothehydraulicsystem.

Onlyremovetheprotectivecapsfromtheconnectorsimmediately beforeinstallingthecontrolunit.

Operation

Onlyworkinrepairmodeifitisabsolutelynecessary.Ifpossible controltheshieldsfromthecontrolunitoftheneighboringshield.

Checktodeterminewhetherallprotectivedevicesontheshieldare presentandfunctional.

Makesurethatnooneisintheareaoftheshieldbeingactuated.

Watchtheshield'srangeofmotionsothatpotentialhazardscanbe recognizedintimeandpreventativeactioncanbetaken.

Maintenance

Informthesupervisorypersonnelandthefacecrewaboutmaintenanceandrepairwork.Providethemwithinformationontheintendedworkanditsprobableduration.

Keepyourworkingareacleartoavoiddangertoyourselfandother persons.

Blockofftheworkingareafortheminingequipmentorstopthe miningequipmentandtheconveyorandlockthe system,topreventitfrombeingturnedonagain.

Beforeperformingwork,mechanicallysecuretheshieldtoprevent itfromaccidentallysinkingintothefloor,e.g.by: proppinguporsupportingthecanopy, placingwoodenwedgesbetweenthelemniscaticlinks.

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handlinghydraulic fluids maintenance,repair

Immediatelydiscontinueanyworkontheshield,ifconveyingand miningoperationsareinprogressinyourworkingarea.

Immediatelyaftercompletingwork,refitanyremovedprotective devicesandcheckthattheyworkproperly.

Makesurethattheprescribedmaintenanceandinspectionintervals areobserved.Alsoseechapter5,“Operation”.

Useonlysparepartswhichconformtothespecifiedtechnical requirements.ThisisbestensuredbyusingoriginalCaterpillar spareparts.

Pleaserefertothesparepartsfolderfortheordernumbers.

Donotmakeanymodificationsorchanges.Modificationsand changesmustbeapprovedbyCaterpillar.

Neverusethecontrolunitwithoutafiltercartridge.Ifthefilteris missingorifitisnotfineenough,thiscanleadtomalfunctionsand damagetothecontrolunit.

Hydraulicsystem

Avoiddirectcontactbetweenyourskinandhydraulicfluids. Hydraulicfluidwhichpenetratestheskincancauseseriousinfections.

Neverusehydraulicfluidsforrinsingorcleaning.Hydraulicfluids poseaveryseriousdangertohealth.

Onlypersonswhohaveandcandemonstratespecialknowledgeof hydraulicsareallowedtoworkonthehydraulicsystem.

Carryoutavisualinspectionofallthehydrauliccomponentsatregularintervals.Inparticularcheckthat:

Thehosesarenotpinched.

Thehoseshavenobubblesorblisters.

Thehosesortheoutersheathsofthehosesarenotabnormallyrigidorhard.

Theoutersheathofthehoseisnotdamaged.

Theconnectorsarefirmlyinsertedinthecouplingsockets.

Theconnectionsareleak-tight.

Ensurethatnodirtentersthehydraulicssystemduringrepairwork. Dirtinthehydraulicsystemcancauseseriousdamagetothewhole system.Flushoutthehydrauliclinesthoroughlybeforeconnecting.

Beforeremovingstaplestodisconnecthydraulichosesturnthe hoseattheconnectortocheckwhetherthelineispressurized. Ifthehoseisdifficulttoturnordoesnotturnatallthelineisstill pressurized.Makesurethelineisdepressurized.

Ifstaplescannotbepulledoutorcanonlybepulledoutwithdifficulty,thehydrauliclinemightstillbeunderpressure.Makesurethe lineisdepressurized.

Securetheconnectorsofthehydraulicelementswiththeproper staplesonly.Alwaysfastenthestaplescompletelywithbothsides. Neverusenails,wireorsimilarmaterials.

Afterfinishingrepairwork,checkallconnectorsandconnectionsfor leaksbeforepressurizingthesystem again.

Useonlyhydraulichosesapprovedfortheprevailingpressures.

Donotuseanyhydraulichoseswithdamaged connectorsorwornO-rings.

Replacehydraulichosesonlywithhosesofthesameorahigher quality.

Observethedateofmanufacturestampedonthehosefittingofthe hydraulichose.Neverusehydraulichoseswhicharemorethan2 yearsold,eveniftheyshownovisiblesignsofdamage.

Nevertrytoholdahydraulichosethatisthrashingabout.Depressurizetheaffectedlinesectionimmediately.

Nevertrytorepairdamagedhydraulichoses.

Replacehydraulichosesevenifyouonlysuspecttheyhavebeen damaged.

Fig.1:Examplehydraulichose,identification

Safetyinstructions

layinghydraulic hoses

Laythehydraulichosescorrectlybehindthebracketsandclips providedforthem.

Alwayslayhydraulichosessothatthey: alwayshavealittleslack,

Fig.2:Layinghydraulichoses,slack RIGHT WRONG arenottwisted,

Fig.3:Layinghydraulichoses,twisting WRONG RIGHT

arenotbentdirectlybehindtheconnectors(distanceminimum 1.5xnominaldiameter),

Fig.4:Layinghydraulichoses,bending RIGHT WRONG cannotchafe,

Fig.5:Layinghydraulichoses,crossing RIGHT WRONG

arenotkinked, donothavetowithstandtensileloads, areprotectedagainstthermalradiation, areaccessibleatalltimes.

Onlypushhydraulichosesintothesocketsbyhand.Nevertryto drivethehydraulichosesinwithatoolasthiswilldamagetheconnections.

Whenlayingthehydraulichoses,ensurethattheycannotbe: tornout, kinked, crushed, drivenover twistedasaresultofmovingequipment.(Fig.6).

Fig.6:Layinghydraulichoses,connectionsonmovingparts RIGHT WRONG

3

Storageandtransport

Storageandtransport

Thischaptercontainsimportantinformationaboutthecorrectstorageandtransportoftheelectrohydrauliccontrolunit.

Followingtheinstructionsandtipswillincreasethelifecycleand servicelifeoftheelectrohydrauliccontrolunit.Youwillbeableto carryouttransportworkmoresafelyandquickly.

Payingcarefulattentiontothepointsinthischapterwillalsohelp youtosimplifyyourday-to-daywork.

Storage

Storingtheequipment

Componentswithatemporaryanticorrosioncoatingareprotected foraboutsixmonths.

Protecttheequipmentfromdirectexposuretosunlight.

Onlystoretheelectricalequipment,electroniccomponents, replacementpartsmadeoutofrubberorplasticsuchassealsand hosesaswellashydraulicfluidsinclosedroomsat15

Cto25 C.

Protectallpartsoftheequipmentstoredoutdoorsagainstmoisture anddirt,e.g.,usingtarpaulins.

Themountingsurfacesofhydrauliccomponentsmustbeprotected againstcorrosionandsealedwithblindplates.Protectthehydraulic plug-typeconnectionsandtheconnectorsoftheelectricalcables withthecapsandplugssupplied.

Duringshort-termstorage(approx.4weeks)ofequipmentoutdoors,butattemperatures above freezing,electricalcomponents neednotberemoved.Suchcomponentsmustbeparticularlyprotectedagainstexcessivetemperatures,dirtandmoisture.

Duringlong-termstorage(morethan4weeks),theequipmentmust notbestoredoutdoors.Itneedstobestoredinadry,well-ventilatedroom.

Afterastorageperiodofapproximatelytwoyears,arandom sampleinspectionmustbeperformedtodeterminewhetherthe measurestakenandthemethodofstoragehavepreventeddamage.

ThisinspectioncanbecarriedoutbyCaterpillaruponrequest.

Evenwithproperstorage,sealsandhoselinesaresubjecttonaturalaging.Donotusethesecomponentsiftheyhavebeenstored formorethantwoyears.

Important!

Ensureduringstoragethatanynewsuppliesarestoredseparatelyfromexistingstocksinsuchawaythatonremoval,old stocksarealwaystakenfirst.

Storage

Storingusedequipment

Thepointslistedabove,withtheexceptionoftheoneconcerning anticorrosionprotection,canbeappliedanalogouslyforthestorage ofhydrauliccomponentsthathavealreadybeeninuse.

Ifthehydraulicssystemistobeputoutof operationtemporarily, theentirehydraulicssystemmustbethoroughlyflushedoutin advanceandthenfilledwithasuitableanticorrosiveandantifreeze liquid(e.g.HYDROCOR® CV50*).Ifthisisnotdone,thenthe hydraulicscomponentsmaysufferconsiderabledamagewithin ashorttime,becausethepropertiesofthemediumusedcan undergoveryrapid,verynegativechanges,e.g.duetomicrobial infestation.

Transport Transportboxes

Thecontrolunitsarepackedinseveraltransportboxes.They shouldstayintheseboxesuntiltheyreachtheirfinaloperatinglocation.Thisprotectsthemfromexternaldamage.

Makesurethattheboxesarenotdamagedduringtransport.During transport,makesurethattheyarenot: droppedor brokenopen.

Protectthetransportboxesfrommoisture.

Beforetransportingtheequipmentattemperaturesbelowfreezing,allofthehydrauliccomponentsmustbecompletelyemptiedandthencompletelyfilledwithacorrosioninhibitor (e.g.HYDROCOR® CV50).

If,duringtransport,thecontrolunitisexposedtotemperatures below-20 C,thenspecialmeasuresmayhavetobetaken.Inthis case,beforestartingtransport,contactCaterpillar'sservicedepartmenttoclarifythenecessarymeasures.

Dimensionsandweight

Plugs

Theconnectorsfortheindividualcontrolunitsareclosedoffwith plasticplugs.Thisprotectsthemfrommoisture,dirtanddamage.

Notice!

Impuritiesinthehydraulicsystemcanleadtothefailureofthe entiresystem,makingexpensiverepairsnecessary. Forthisreason,youshouldonlyremovetheplugsjustbefore thecontrolunitisconnected.

Bracketwithcontrolunit

Important!

Whentransportingtheshieldensurethatthebracketisfixedto thecontrolunitsuchthatitcannotcollidewithothercomponentswhenshieldisbeingretracted.

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4 Installation

Installation

Thischaptercontainsinformationontheinstallationanddeinstallationofelectrohydrauliccontrolunits.Pleasepayspecialattentionto thewarningsandtips.

Warning!

Improperorfaultyinstallationcanendangeryourselfandothers.

Youmayonlycarryouttheinstallationifyoucandemonstrate thatyouhavetherequisite,specialknowledge.

Requirementsforthefacehydraulicsystem Notice!

Thehydraulicandelectronicpartsoftheshieldcontrolsystem aredealtwithinseparateoperatingmanuals.

Youwillfinddetailsonthecommissioninganduseofthe shieldcontrolsystemintheoperatingmanualontheelectronic controls.

Thehydraulicmediummustmeetthefollowingconditionsforall hydraulicsystemcomponentsincludedintheCaterpillarscopeof delivery:

IfthetestspecifiedinEWN8350,part1,issuccessful,the hydraulicfluidwillbeclassifiedassuitable.Seethesection “Operatingmedia”inchapter6ofthisoperatingmanual ContaminationClass18/14pursuanttoISO4406.

Installationofthecontrolunit

Removingthecontrolunit

Beforeyoucanstartwiththeinstallationorexchangeofthecontrol unit,youmusttakesafetyprecautions:

. Sealoffyourworkingareatokeepallotherpersonnelout.

. Haveminingstoppedinthisarea.

. Informyourcolleaguesaboutthenatureanddurationofthe repairworkandaboutyourexactlocation.

. Pressthesupportlock-outswitch.

. Securetheshieldtostopitsinkingbyitself;e.g.byusing wedgesinthelemniscaticlinksorbyproppinguporsupporting thecanopy.

. Depressurizethehydraulicsystemoftheshieldconcerned.

. Checkthatthehydrauliclinesarereallydepressurized. IfeverythingisOKsofar,thenyoucancontinuewiththenextstep.

. Labeltheconnectingcablesandhydraulichosestoavoidmixupslateron.

. Pullofftheconnectingcablefromthecoverofthepilotvalve.

Danger!

Neverworkonahydraulicline,ifyouarenotsurethattheline iscompletelydepressurized. Ifloosehydraulichosesarethrashingaboutandhydraulicfluid isescaping underpressure,youcouldbeseriouslyinjuredor evenkilled.

Itisthusvitalthatyoudepressurizehydrauliccomponents beforeyoustarttodismantlethem. Ifastaplecan'tbepulledout,orisverystiff,thenyoushould beverycareful.Itispossiblethatthehydrauliclineisstill underpressure.

. Undoallofthehydraulicconnectionsontherearsideofthe controlunitandmakesurethattheconnectionsarenotdamagedorsoiledwhendoingthis.

. Securethecontrolunitwithliftinggearandtransportstraps.

Notice!

Donotsecurethecontrolunitwithchainsorsteelcables.It couldbedamagedbythat. Onlyusetransportstrapswhichsitcloselyonthecontrolunit andwhichpreventitfromslippingthrough.

. Undothescrewsonthecontrolunitmounting.

. Pullthecontrolunitoutofthemounting.

Installationofthecontrolunit

. Placethecontrolunitinthemountingandtightenthescrews (M10)byhand.

Fig.7:Tappedholes

Important!

Beforecommissioningtheshield,ensurethatthesymbolbar ispositionedsuchthatthesymbolsareclearlylegible.

Caution!

Beforethehydraulicconnectionsarejoinedwithoneanother, thecouplingsocketsandnipplesoftheplug-Oconnections mustbetreatedwiththemolybdenumdisulfide-freeB3lubricatingpasteinaccordancewithEWN7068. Seechapter6,Section“Lubricatinggreasesandpastes”.

. Connectthehydraulichoses.Ensurethatyoudonotmixup theconnections. Followthehoseplanandthelabelingofthehoses.

Danger!

Youcouldbeseriouslyinjuredorevenkilledbyahydraulic hosethatisthrashingabout!

Onlyusethecorrectsizeofstapletosecureconnectorsockets.Pushthestaplesoncompletely,usingbothsidesofthe staple.Neverusenails,wireorsimilarmaterials.

M10
M10

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