Hydraulic

JoyMiningMachineryTechnicalPublicationBuliantaLongwallShearer6LS5LWS418Hydraulics©JOYMININGMACHINERY2000Reproductionofthispublicationbyanymeans,eithermechanicalorelectrical,includingphotocopying,isprohibitedwithouttheexpresswrittenconsentofthepublisher.PrefaceThismanualisintendedtoprovidebasicoperationandmaintenanceinformationonthismachine.AdditionalinformationisavailablebyreferringtotheSalesOrderandPartsBooksuppliedwiththemachine,orbycontactingyourlocalJoyMiningMachineryrepresentative.Theillustrations,descriptions,andprocedurescontainedinthispublicationappliedtothemachineasitwasoriginallymanufactured,andwhenthepublicationwasapprovedforprinting.JoyMiningMachineryreservestherighttodiscontinueorrevisemodelsatanytime,orchangespecifications,designs,orprocedures,withoutnoticeandwithoutincurringobligations.Thismachinewasmanufacturedundertheguidelines,procedures,andrequirementsoftheappropriategovernmentalregulatoryagencies.Atthecompletionofthemanufacturingprocess,thismachinewasissuedtheappropriateapprovalnumbersandnameplatesindicatingitmetthetechnicalrequirementsoftheappropriateagencies.Anychangetothedesignorstructureofthismachine,withouttheconsentofJoyandtheseregulatoryagencies,mayvoidtheseapprovalsandrenderthemachineillegalanddangerousforuse.Strictcompliancewithalllocalandnationallaws,regulations,andpracticesregardingthesafeoperationandmaintenanceofundergroundminingequipmentisnecessarytoassurethepersonalsafetyofthoseworkingon,oraround,thismachine.THLW0066-0200TableofContentsSafetyInstructions.........................................................................................................................1SafetyInstructions-Hydraulic.......................................................................................................2GeneralDescription....................................................................................................................3-5PumpCircuit...............................................................................................................................6,7RangingArmCircuit.................................................................................................................8-11LoadLockValves-RangingArms..............................................................................................12PowerFill................................................................................................................................13,14DrumWaterSprays................................................................................................................15,16BrakeCircuit...........................................................................................................................17,18ComponentMaintenance.......................................................................................................19-25HydraulicFluid........................................................................................................................26,27HoseNumbering.........................................................................................................................28HydraulicFaultFinding...........................................................................................................29-32THLW0066-02001IntroductionPictographlabelsareusedtoshowbothgraphicallyandverballywherepotentialhazardsexistaroundparticularmachines.Theselabelsdonotrepresenteverypossiblehazard,noraretheyintendedtobeasubstituteforsafeworkpracticesandgoodjudgement.Inboththelabelsandthemanualssuppliedwiththemachine,certainwordsareusedtoidentifytheseverityofthehazard.Taketimetoreadandunderstandthemeaningofthesewordsastheyrelatetocertainhazards.6LSSafetyThefollowingpictographsarefoundonthe6LSshearer.Becertaineveryoneworkingnearthemachineunderstandsthehazardstheyrepresentandhowtoavoidthem.Donotremove,cover,paintoverordefacethesesafetylabels.Iftheybecomedamaged,missingorobscured,requestreplacementsfromJOY.Dangerlabelscallattentiontoimminentlyhazardoussituationsthatwillresultinseriouspersonalinjuryordeathifnotavoided.Injuryfromthesehazardsisimmediateinnatureandhasahighprobabilityofresultinginaseriousorfatalaccidentifproperprecautionsarenotfollowed.Warninglabelscallattentiontopotentiallyhazardoussituationsthatcouldresultinseriouspersonalinjuryordeathifnotavoided.Injuryfromtheseisseriousinnature,andasevereorfatalaccidentcanoccurifproperprecautionsarenotfollowed.Cautionlabelscallattentiontopotentiallyhazardousthatmayresultinminorormoderatepersonalinjuryifnotavoided.InjuryfromthesehazardsisnormallylessseriousthanthosefromDangerandWarninghazards.However,thereisstillthepotentialforanaccidentresultinginseriousinjuryifproperprecautionsarenotfollowed.Disconnectpowerbeforeservicing.DANGERA2WARNINGShutoffmachineandrelievepressurebeforedisconnectinganyhydraulicline.A4CAUTIONHotoilunderpressuremaybepresentunderthiscover.Useextremecarewhenremoving.A5DANGERLowerarmandcowlontoblockingorground,anddisconnectpowerbeforeenteringarea.A3Thislabelislocatedonthecontro