CASE CONSTRUCTION CX350C User manual

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CX350C
CX380C
Crawler Excavator
SERVICE MANUAL
Crawler Excavator
CX350C
CX380C
Part number 47877018
English
July 2015
© 2015 CNH Industrial Italia S.p.A. All Rights Reserved.
SERVICE MANUAL
Part number 47877018

SERVICEMANUAL
CX350CCrawlerexcavatorSTDversion(TIER3)-CHINAMarket
CX380CCrawlerexcavatorLCversion(TIER3)-CHINAMarket
4787701801/07/2015
EN

Contents
INTRODUCTION
Engine.......................................................................................10
[10.001]Engineandcrankcase.............................................................10.1
[10.102]Panandcovers....................................................................10.2
[10.106]Valvedriveandgears..............................................................10.3
[10.101]Cylinderheads.....................................................................10.4
[10.105]Connectingrodsandpistons.......................................................10.5
[10.103]Crankshaftandywheel............................................................10.6
[10.216]Fueltanks..........................................................................10.7
[10.206]Fuellters..........................................................................10.8
[10.218]Fuelinjectionsystem...............................................................10.9
[10.250]Turbochargerandlines...........................................................10.10
[10.254]Intakeandexhaustmanifoldsandmufer.......................................10.11
[10.501]ExhaustGasRecirculation(EGR)-DieselParticulateFilter(DPF)exhaust
treatment..................................................................................10.12
[10.400]Enginecoolingsystem...........................................................10.13
[10.414]Fananddrive....................................................................10.14
[10.310]Aftercooler........................................................................10.15
[10.304]Enginelubricationsystem........................................................10.16
Hydraulicsystems.......................................................................35
[35.000]Hydraulicsystems..................................................................35.1
[35.300]Reservoir,cooler,andlters........................................................35.2
[35.106]Variabledisplacementpump.......................................................35.3
[35.102]Pumpcontrolvalves................................................................35.4
[35.304]Combinationpumpunits...........................................................35.5
[35.359]Maincontrolvalve..................................................................35.6
[35.357]Pilotsystem........................................................................35.7
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[35.355]Hydraulichandcontrol.............................................................35.8
[35.356]Hydraulicfootcontrol...............................................................35.9
[35.352]Hydraulicswingsystem..........................................................35.10
[35.353]Hydraulictravelsystem..........................................................35.11
[35.354]Hydrauliccentraljoint............................................................35.12
[35.736]Boomhydraulicsystem..........................................................35.13
[35.737]Dipperhydraulicsystem..........................................................35.14
[35.738]Excavatorandbackhoebuckethydraulicsystem................................35.15
[35.360]Hammerandrotatingbuckethydraulicsystem..................................35.16
Framesandballasting.................................................................39
[39.140]Ballastsandsupports..............................................................39.1
Tracksandtracksuspension........................................................48
[48.130]Trackframeanddrivingwheels....................................................48.1
[48.100]Tracks..............................................................................48.2
[48.134]Tracktensionunits.................................................................48.3
[48.138]Trackrollers........................................................................48.4
Cabclimatecontrol.....................................................................50
[50.100]Heating.............................................................................50.1
[50.200]Airconditioning.....................................................................50.2
Electricalsystems.......................................................................55
[55.000]Electricalsystem...................................................................55.1
[55.100]Harnessesandconnectors.........................................................55.2
[55.525]Cabenginecontrols................................................................55.3
[55.015]Enginecontrolsystem..............................................................55.4
[55.201]Enginestartingsystem.............................................................55.5
[55.301]Alternator...........................................................................55.6
[55.302]Battery..............................................................................55.7
[55.202]Coldstartaid.......................................................................55.8
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[55.010]Fuelinjectionsystem...............................................................55.9
[55.014]Engineintakeandexhaustsystem...............................................55.10
[55.989]ExhaustGasRecirculation(EGR)electricalsystem.............................55.11
[55.012]Enginecoolingsystem...........................................................55.12
[55.013]Engineoilsystem................................................................55.13
[55.640]Electronicmodules...............................................................55.14
[55.512]Cabcontrols......................................................................55.15
[55.036]Hydraulicsystemcontrol.........................................................55.16
[55.051]CabHeating,Ventilation,andAir-Conditioning(HVAC)controls.................55.17
[55.050]Heating,Ventilation,andAir-Conditioning(HVAC)controlsystem...............55.18
[55.416]Swingcontrolsystem............................................................55.19
[55.417]Travelcontrolsystem............................................................55.20
[55.530]Camera...........................................................................55.21
[55.518]Wiperandwashersystem........................................................55.22
[55.404]Externallighting..................................................................55.23
[55.514]Cablighting......................................................................55.24
[55.408]Warningindicators,alarms,andinstruments....................................55.25
[55.992]Anti-theftsystem.................................................................55.26
[55.DTC]FAULTCODES..................................................................55.27
Booms,dippers,andbuckets.......................................................84
[84.910]Boom...............................................................................84.1
[84.912]Dipperarm.........................................................................84.2
[84.100]Bucket..............................................................................84.3
Platform,cab,bodywork,anddecals.............................................90
[90.150]Cab.................................................................................90.1
[90.156]Cabglazing........................................................................90.2
[90.120]Mechanically-adjustedoperatorseat...............................................90.3
[90.100]Enginehoodandpanels...........................................................90.4
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INTRODUCTION
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1

INTRODUCTION
Safetyrules
Personalsafety
Thisisthesafetyalertsymbol.Itisusedtoalertyoutopotentialpersonalinjuryhazards.Obeyall
safetymessagesthatfollowthissymboltoavoidpossibledeathorinjury.
ThroughoutthismanualyouwillndthesignalwordsDANGER,WARNING,andCAUTIONfollowedbyspecialin-
structions.Theseprecautionsareintendedforthepersonalsafetyofyouandthoseworkingwithyou.
Readandunderstandallthesafetymessagesinthismanualbeforeyouoperateorservicethemachine.
DANGERindicatesahazardoussituationthat,ifnotavoided,willresultindeathorseriousinjury.
WARNINGindicatesahazardoussituationthat,ifnotavoided,couldresultindeathorseriousinjury.
CAUTIONindicatesahazardoussituationthat,ifnotavoided,couldresultinminorormoderateinjury.
FAILURETOFOLLOWDANGER,WARNING,ANDCAUTIONMESSAGESCOULDRESULT
INDEATHORSERIOUSINJURY .
Machinesafety
NOTICE:Noticeindicatesasituationthat,ifnotavoided,couldresultinmachineorpropertydamage.
ThroughoutthismanualyouwillndthesignalwordNoticefollowedbyspecialinstructionstopreventmachineor
propertydamage.ThewordNoticeisusedtoaddresspracticesnotrelatedtopersonalsafety.
Information
NOTE:Noteindicatesadditionalinformationthatclariessteps,procedures,orotherinformationinthismanual.
ThroughoutthismanualyouwillndthewordNotefollowedbyadditionalinformationaboutastep,procedure,or
otherinformationinthemanual.ThewordNoteisnotintendedtoaddresspersonalsafetyorpropertydamage.
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4

INTRODUCTION
Safetyrules–Generalinformation
Cleaning
Cleanthemetalpartswithcleaningsolutionthatmeetsthestandardandsteamcleaning.(exceptforbearings)
Aftercleaning,drywell,andinjectoilinallparts.
Alsoinjectoilintothebearingsafterdrying.
Inspection
Whendisassemblingparts,checkalltheparts.
Ifthereareanywornordamagedparts,replacethem.
Inspectcarefullytopreventinitialbreakdowns.
Bearing
Replaceanyloosebearings.
Airdrybearingsbeforeinstallingthem.
Needlebearing
Wheninsertingneedlebearings,beverycarefulnottodamagethem.
Applygreasetothesectionwheretheneedlebearingwillbeinserted.
Gear
Checkthatthereisnowearandnodamage.
Oilseal,O-ring,gasket
Alwaysinstallnewoilseals,O-rings,andgaskets.
ApplygreasetosectionswhereoilsealsandO-ringswillbeinserted.
Shaft
Checkthatthereisnowearandnodamage.
Checkthebearingsandcheckfordamagedoilsealsontheshaft.
Serviceparts
InstallCASECONSTRUCTIONgenuineserviceparts.
Whenplacinganorder,checkthepartscatalog.ItcontainstheCASECONSTRUCTIONgenuinepartnumbers.
Anybreakdownsarisingfromtheinstallationofnon-genuinepartsarenotcoveredbythewarranty.
Lubricants(fuel,hydraulicoil)
Usetheoilfromthespeciedcompanyorspeciedintheoperator'smanualorserviceManual.
Anybreakdownsarisingfromanyfuelorhydraulicoilotherthanthosespeciedarenotcoveredbythewarranty.
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5

SERVICEMANUAL
Engine
CX350CCrawlerexcavatorSTDversion(TIER3)-CHINAMarket
CX380CCrawlerexcavatorLCversion(TIER3)-CHINAMarket
4787701801/07/2015
10

Engine-Engineandcrankcase
Engine-Generalspecication
Enginemaindata
ItemEnginemodel6HK1X
TypeDiesel/4-cycle/water-cooled,inline6cylinder
OHC
ShapeofcombustionchamberDirectinjectiontype
CylinderlinertypeDrytype
Cylinderborexstroke115mm(4.53in)x125mm(4.92in)
Displacement7.790L(2.05790USgal)
Compressionratio17.5
Compressionpressure3.04MPa(441psi)200RPM
Idlingenginespeed900RPM
In0.4mm(0.016in)(whileengineiscool)
ValveclearanceOut0.4mm(0.016in)(whileengineiscool)
IgnitiontypeCompressionignition
Injectionorder1,5,3,6,2,4
Lubricationsystem
LubricationtypePressuretype
OilpumptypeGeartype
Lubricationoilamount28-38L(9.5-12.2USgal)
OilltertypeFull-owlter(cartridgetype)
OilcooledtypeBuilt-in,watercooled
Coolingsystem
CoolingtypeWatercooled
RadiatortypeCorrugatedn(pressuretype)
WaterpumptypeCentrifugal,belttype
Thermostattype2-waxtypeunit
82°C(180°F)withoutjigglevalveThermostatvalveopeningtemperature85°C(185°F)withjigglevalve
Coolantcapacity14.5L(4.2USgal)
Fuelsystem
InjectionpumptypeElectroniccontrolcommonrailtype
GovernortypeElectronictype
TimertypeElectronictype
InjectionnozzletypePoroustype,7holes,innerdiameterØ0.16mm
(0.0063in)
Batterysystem
GeneratortypeACtype
Output24V/50A
RegulatortypeIC
Startersystem
StartertypeReductiontype
Output24V/5.0kW
PreheatsystemtypeGlowplug
Glowplugstandardvoltage/current23V/3.5A
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Engine-Engineandcrankcase
Coolingsystemmaindata
ItemData
WaterpumpCentrifugalimpellertype
Pulleyratio0.950
ThermostatWaxpellettype
82°C(180°F)WithoutjigglevalveValveopeningtemperature85°C(185°F)Withjigglevalve
95°C(203°F)WithoutjigglevalveFullopentemperature100°C(212°F)Withjigglevalve
Electricalsystemmaindata
Generator
ItemData
NameofmanufacturerMitsubishiElectricCorporation
Isuzupartsnumber1-81200-603-2
ManufacturermodelNo.A004TU6285
Nominalvoltage24V
Outputcurrent50A
Ratedspeed5000RPM
Outputcurrent/voltage50A/27V/5000RPM
No-loadvoltage24V/900RPM
DirectionofrotationClockwise
Polarity(-)
Pulleydiameter(P .C.D)80.0mm(3.15in)
Starter
ItemData
ManufacturerMitsubishiElectricCorporation
Isuzupartsnumber181100-4140
ManufacturercodenumberM008T60971
Output24V/5.0kW
Rated(time)30s
Yorkouterdiameter85.0mm(3.35in)
DirectionofrotationRighthand
ProtectionformatDust-proonganddrip-proong
ReductiongearmechanismInternalgear
Weight7.2kg(15.9lb)
Module3
Pressureangle14.5
Numberofteeth11Pinion
Gearratio(ring
gear/piniongear)12.8(129/11)
Voltage23V
Current85AorlowerNoload
Enginespeed3300RPMmin.
Voltage9V
Current1400mAorlessConstraint
Torque88N·m(65lbft)min.
Pinionmeshingvoltage16.0Vmax.
Glowplug
ItemType
PreheatunitmodelGlowplug
Glowplugratedvoltage/current23V/3.5A
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