Case CX17C User manual
Part number 48127447
English
April 2017
SERVICE MANUAL
CX17C
Mini Excavator
Printedin U.S.A.
© 2017 CNH Industrial Italia S.p.A. All Rights Reserved.
Case is a trademark registered in the United States and many
other countries, owned or licensed to CNH Industrial N.V.,
its subsidiaries or affiliates.
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SERVICEMANUAL
CX17CCanopy-Tier4Aengine
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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]Crankshaftandywheel............................................................10.6
[10.216]Fueltanks..........................................................................10.7
[10.206]Fuellters..........................................................................10.8
[10.218]Fuelinjectionsystem...............................................................10.9
[10.202]Aircleanersandlines............................................................10.10
[10.254]Intakeandexhaustmanifoldsandmufer.......................................10.11
[10.400]Enginecoolingsystem...........................................................10.12
[10.414]Fananddrive....................................................................10.13
[10.304]Enginelubricationsystem........................................................10.14
[10.408]Oilcoolerandlines...............................................................10.15
Hydraulicsystems.......................................................................35
[35.000]Hydraulicsystems..................................................................35.1
[35.300]Reservoir,cooler,andlters........................................................35.2
[35.106]Variabledisplacementpump.......................................................35.3
[35.359]Maincontrolvalve..................................................................35.4
[35.357]Pilotsystem........................................................................35.5
[35.355]Hydraulichandcontrol.............................................................35.6
[35.356]Hydraulicfootcontrol...............................................................35.7
[35.352]Hydraulicswingsystem............................................................35.8
[35.353]Hydraulictravelsystem............................................................35.9
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[35.354]Hydrauliccentraljoint............................................................35.10
[35.736]Boomhydraulicsystem..........................................................35.11
[35.737]Dipperhydraulicsystem..........................................................35.12
[35.738]Excavatorandbackhoebuckethydraulicsystem................................35.13
[35.734]Toolquickcouplerhydraulicsystem.............................................35.14
[35.739]Swingarmhydraulicsystem.....................................................35.15
[35.741]Dozerbladecylinders............................................................35.16
[35.948]Framepositioningextending.....................................................35.17
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
Electricalsystems.......................................................................55
[55.000]Electricalsystem...................................................................55.1
[55.100]Harnessesandconnectors.........................................................55.2
[55.525]Cabenginecontrols................................................................55.3
[55.201]Enginestartingsystem.............................................................55.4
[55.301]Alternator...........................................................................55.5
[55.302]Battery..............................................................................55.6
[55.202]Coldstartaid.......................................................................55.7
[55.011]Fueltanksystem...................................................................55.8
[55.012]Enginecoolingsystem.............................................................55.9
[55.013]Engineoilsystem................................................................55.10
[55.512]Cabcontrols......................................................................55.11
[55.524]Cabcontrols(Liftarm,Boom,Dipper,Bucket)...................................55.12
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[55.404]Externallighting..................................................................55.13
[55.405]Externallightingswitchesandrelays............................................55.14
[55.408]Warningindicators,alarms,andinstruments....................................55.15
Booms,dippers,andbuckets.......................................................84
[84.910]Boom...............................................................................84.1
[84.912]Dipperarm.........................................................................84.2
[84.100]Bucket..............................................................................84.3
Dozerbladeandarm...................................................................86
[86.110]Dozerblade........................................................................86.1
Platform,cab,bodywork,anddecals.............................................90
[90.160]Cabinteriortrimandpanels........................................................90.1
[90.114]Operatorprotections...............................................................90.2
[90.120]Mechanically-adjustedoperatorseat...............................................90.3
[90.100]Enginehoodandpanels...........................................................90.4
[90.105]Machineshieldsandguards.......................................................90.5
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INTRODUCTION
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Contents
INTRODUCTION
Foreword-Importantnoticeregardingequipmentservicing....................................3
Safetyrules.....................................................................................4
Safetyrules-Generalinformation..............................................................5
Safetyrules-Personalsafety..................................................................6
Safetyrules-Ecologyandtheenvironment....................................................9
Torque-Standardtorquesettings............................................................10
Torque-Specialtorquesettings..............................................................12
Basicinstructions-Shopandassembly......................................................13
Machinespecications........................................................................15
Weights.......................................................................................17
Dimensions...................................................................................18
Conversionfactors............................................................................20
Hydrauliccontamination......................................................................32
Generalspecication.........................................................................33
Fluidsandlubricants..........................................................................35
Productidentication..........................................................................39
Productidentication-Machineorientation..................................................42
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INTRODUCTION
Foreword-Importantnoticeregardingequipmentservicing
Allrepairandmaintenanceworklistedinthismanualmustbecarriedoutonlybyqualieddealershippersonnel,
strictlycomplyingwiththeinstructionsgiven,andusing,wheneverpossible,thespecialtools.
Anyonewhoperformsrepairandmaintenanceoperationswithoutcomplyingwiththeproceduresprovidedherein
shallberesponsibleforanysubsequentdamages.
Themanufacturerandalltheorganizationsofitsdistributionchain,including-withoutlimitation-national,regional,or
localdealers,rejectanyresponsibilityfordamagescausedbypartsand/orcomponentsnotapprovedbythemanu-
facturer,includingthoseusedfortheservicingorrepairoftheproductmanufacturedormarketedbythemanufacturer.
Inanycase,nowarrantyisgivenorattributedontheproductmanufacturedormarketedbythemanufacturerincase
ofdamagescausedbypartsand/orcomponentsnotapprovedbythemanufacturer.
Themanufacturerreservestherighttomakeimprovementsindesignandchangesinspecicationsatanytimewithout
noticeandwithoutincurringanyobligationtoinstallthemonunitspreviouslysold.Specications,descriptions,and
illustrativematerialhereinareasaccurateasknownattimeofpublicationbutaresubjecttochangewithoutnotice.
Incaseofquestions,refertoyourCASECONSTRUCTIONSalesandServiceNetworks.
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INTRODUCTION
Safetyrules
Personalsafety
Thisisthesafetyalertsymbol.Itisusedtoalertyoutopotentialpersonalinjuryhazards.Obeyall
safetymessagesthatfollowthissymboltoavoidpossibledeathorinjury.
ThroughoutthismanualyouwillndthesignalwordsDANGER,WARNING,andCAUTIONfollowedbyspecialin-
structions.Theseprecautionsareintendedforthepersonalsafetyofyouandthoseworkingwithyou.
Readandunderstandallthesafetymessagesinthismanualbeforeyouoperateorservicethemachine.
DANGERindicatesahazardoussituationthat,ifnotavoided,willresultindeathorseriousinjury.
WARNINGindicatesahazardoussituationthat,ifnotavoided,couldresultindeathorseriousinjury.
CAUTIONindicatesahazardoussituationthat,ifnotavoided,couldresultinminorormoderateinjury.
FAILURETOFOLLOWDANGER,WARNING,ANDCAUTIONMESSAGESCOULDRESULT
INDEATHORSERIOUSINJURY.
Machinesafety
NOTICE:Noticeindicatesasituationthat,ifnotavoided,couldresultinmachineorpropertydamage.
ThroughoutthismanualyouwillndthesignalwordNoticefollowedbyspecialinstructionstopreventmachineor
propertydamage.ThewordNoticeisusedtoaddresspracticesnotrelatedtopersonalsafety.
Information
NOTE:Noteindicatesadditionalinformationthatclariessteps,procedures,orotherinformationinthismanual.
ThroughoutthismanualyouwillndthewordNotefollowedbyadditionalinformationaboutastep,procedure,or
otherinformationinthemanual.ThewordNoteisnotintendedtoaddresspersonalsafetyorpropertydamage.
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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)
Usetheoilfromthespeciedcompanyorspeciedintheoperator'smanualorserviceManual.
Anybreakdownsarisingfromanyfuelorhydraulicoilotherthanthosespeciedarenotcoveredbythewarranty.
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INTRODUCTION
Safetyrules-Personalsafety
Preliminarywarningstomaintenanceoperation
WARNING
Avoidinjury!
Shutofftheengine,removethekey,andmakesureallmachinemotionstopsbeforeyouservicethe
machine.
Failuretocomplycouldresultindeathorseriousinjury.W1128B
WARNING
Improperoperationorserviceofthismachinecanresultinanaccident.
Assignasupervisortodirectworksiteoperations.Agreeonallsafetymeasures,procedures,and
suitablehandsignals.
Failuretocomplycouldresultindeathorseriousinjury.W0287A
CAUTION
Pinchhazard!
Alwaysusesuitabletoolstoalignmatingparts.DONOTuseyourhandorngers.
Failuretocomplycouldresultinminorormoderateinjury.C0044A
PersonalProtectiveEquipment(PPE)
WARNING
Avoidinjury!
UsePersonalProtectiveEquipment(PPE),includingprotectivegoggles,gloves,andsafetyfootwear.
Failuretocomplycouldresultindeathorseriousinjury.W1036A
Liftingoperation
WARNING
Crushinghazard!
Theliftingsystemsmustbeoperatedbyqualiedpersonnelwhoareawareofthecorrectprocedures
tofollow.Makesureallliftingequipmentisingoodcondition,andallhooksareequippedwithsafety
latches.
Failuretocomplycouldresultindeathorseriousinjury.W0256A
WARNING
Heavyobjects!
Liftandhandleallheavycomponentsusingliftingequipmentwithadequatecapacity.Alwayssupport
unitsorpartswithsuitableslingsorhooks.Makesuretheworkareaisclearofallbystanders.
Failuretocomplycouldresultindeathorseriousinjury.W0398A
WARNING
Improperoperationorserviceofthismachinecanresultinanaccident.
Raisedequipmentormachinemovementwithoutanoperatorcancauseseriousinjury.Alwaysdothe
followingbeforeperforminganymaintenance:
Parkthemachineonat,levelground.
Lowertheattachmenttotheground.
Shutdowntheengineandremovetheignitionkey.
Lockthetracks.
Failuretocomplycouldresultindeathorseriousinjury.W0944D
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INTRODUCTION
WARNING
Tip-overhazard!
Onlyraisethetrackaslittleasnecessary.
Failuretocomplycouldresultindeathorseriousinjury.W0276A
Hydraulicsystem
WARNING
Burnhazard!
Beforeperforminganyserviceonthehydraulicsystem,youmustallowittocool.Hydraulicuid
temperatureshouldnotexceed40°C(104°F).
Failuretocomplycouldresultindeathorseriousinjury.W0241A
WARNING
Pressurizeduidcanpenetratetheskinandcausesevereinjuries.
Thegreaseinthecylinderisunderhighpressure.Neverloosenthegreasettingadaptorcompletely
inordertospeeduptheowofgrease.
Failuretocomplycouldresultindeathorseriousinjury.W0261A
WARNING
Pressurizedsystem!
Beforeattemptinganyserviceprocedure,itisyourresponsibilitytoknowthenumberofaccumulators
onthemachine,andthecorrectprocedureforreleasingthepressureofeachaccumulator.
Failuretocomplycouldresultindeathorseriousinjury.W0136A
Battery
WARNING
Batteryacidcausesburns.Batteriescontainsulfuricacid.
Avoidcontactwithskin,eyesorclothing.Antidote(external):Flushwithwater.Antidote(eyes):ush
withwaterfor15minutesandseekmedicalattentionimmediately.Antidote(internal):Drinklarge
quantitiesofwaterormilk.Donotinducevomiting.Seekmedicalattentionimmediately.
Failuretocomplycouldresultindeathorseriousinjury.W0111A
WARNING
Batterygascanexplode!
Topreventanexplosion:1.Alwaysdisconnectthenegative(-)batterycablerst.2.Alwaysconnect
thenegative(-)batterycablelast.3.Donotshortcircuitthebatterypostswithmetalobjects.4.Do
notweld,grind,orsmokenearabattery.
Failuretocomplycouldresultindeathorseriousinjury.W0011A
Fluids
WARNING
Hazardouschemicals!
Coolantcanbetoxic.Avoidcontactwithskin,eyes,andclothing.Antidotes:
EXTERNAL-Rinsethoroughlywithwater.Removesoiledclothing.
INTERNAL-Rinsethemouthwithwater.DONOTinducevomiting.Seekimmediatemedicalattention.
EYES-Flushwithwater.Seekimmediatemedicalattention.
Failuretocomplycouldresultindeathorseriousinjury.W0282A
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INTRODUCTION
WARNING
Burnhazard!
Hotcoolantcansprayandscaldifyouremovetheradiatorordeaerationtankcapwhilethesystem
ishot.Toremovethecap:allowthesystemtocool,turnthecaptotherstnotch,andwaitforall
pressuretorelease.Removethecaponlyafterallpressurehasreleased.
Failuretocomplycouldresultindeathorseriousinjury.W0367A
WARNING
Escapinguid!
Hydraulicuidordieselfuelleakingunderpressurecanpenetratetheskinandcauseinfectionor
otherinjury.Topreventpersonalinjury:Relieveallpressurebeforedisconnectinguidlinesorper-
formingworkonthehydraulicsystem.Beforeapplyingpressure,makesureallconnectionsaretight
andallcomponentsareingoodcondition.Neveruseyourhandtocheckforsuspectedleaksunder
pressure.Useapieceofcardboardorwoodforthispurpose.Ifinjuredbyleakinguid,seeyour
doctorimmediately.
Failuretocomplycouldresultindeathorseriousinjury.W0178A
WARNING
Chemicalhazard!
Whenhandlingfuel,lubricants,andotherservicechemicals,followthemanufacturer'sinstructions.
WearPersonalProtectiveEquipment(PPE)asinstructed.Donotsmokeoruseopename.Collect
uidsinpropercontainers.Obeyalllocalandenvironmentalregulationswhendisposingofchemi-
cals.
Failuretocomplycouldresultindeathorseriousinjury.W0371A
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INTRODUCTION
Safetyrules-Ecologyandtheenvironment
Soil,air,andwaterqualityisimportantforallindustriesandlifeingeneral.Whenlegislationdoesnotyetrulethe
treatmentofsomeofthesubstancesthatadvancedtechnologyrequires,soundjudgmentshouldgoverntheuseand
disposalofproductsofachemicalandpetrochemicalnature.
Familiarizeyourselfwiththerelativelegislationapplicabletoyourcountry,andmakesurethatyouunderstandthis
legislation.Wherenolegislationexists,obtaininformationfromsuppliersofoils,lters,batteries,fuels,anti-freeze,
cleaningagents,etc.,withregardtotheeffectofthesesubstancesonmanandnatureandhowtosafelystore,use,
anddisposeofthesesubstances.
Helpfulhints
•Avoidtheuseofcansorotherinappropriatepressurizedfueldeliverysystemstolltanks.Suchdeliverysystems
maycauseconsiderablespillage.
•Ingeneral,avoidskincontactwithallfuels,oils,acids,solvents,etc.Mostoftheseproductscontainsubstances
thatmaybeharmfultoyourhealth.
•Modernoilscontainadditives.Donotburncontaminatedfuelsandorwasteoilsinordinaryheatingsystems.
•Avoidspillagewhenyoudrainuidssuchasusedenginecoolantmixtures,engineoil,hydraulicuid,brakeuid,
etc.Donotmixdrainedbrakeuidsorfuelswithlubricants.Storealldraineduidssafelyuntilyoucandisposeof
theuidsinaproperwaythatcomplieswithalllocallegislationandavailableresources.
•Donotallowcoolantmixturestogetintothesoil.Collectanddisposeofcoolantmixturesproperly.
•Theair-conditioningsystemcontainsgasesthatshouldnotbereleasedintotheatmosphere.Consultanair-condi-
tioningspecialistoruseaspecialextractortorechargethesystemproperly.
•Repairanyleaksordefectsintheenginecoolingsystemorhydraulicsystemimmediately.
•Donotincreasethepressureinapressurizedcircuitasthismayleadtoacomponentfailure.
•Protecthosesduringwelding.Penetratingweldsplattermayburnaholeorweakenhoses,allowingthelossofoils,
coolant,etc.
Batteryrecycling
Batteriesandelectricaccumulatorscontainseveralsubstancesthatcanhaveaharmful
effectontheenvironmentifthebatteriesarenotproperlyrecycledafteruse.Improper
disposalofbatteriescancontaminatethesoil,groundwater,andwaterways.CASE
CONSTRUCTIONstronglyrecommendsthatyoureturnallusedbatteriestoaCASE
CONSTRUCTIONdealer,whowilldisposeoftheusedbatteriesorrecycletheused
batteriesproperly.Insomecountries,thisisalegalrequirement.
Mandatorybatteryrecycling
NOTE:ThefollowingrequirementsaremandatoryinBrazil.
Batteriesaremadeofleadplatesandasulfuricacidsolution.Becausebatteriescontainheavymetalssuchaslead,
CONAMAResolution401/2008requiresyoutoreturnallusedbatteriestothebatterydealerwhenyoureplaceany
batteries.Donotdisposeofbatteriesinyourhouseholdgarbage.
Pointsofsaleareobligedto:
•Acceptthereturnofyourusedbatteries
•Storethereturnedbatteriesinasuitablelocation
•Sendthereturnedbatteriestothebatterymanufacturerforrecycling
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INTRODUCTION
Torque-Standardtorquesettings
BOLTANDNUT
Usefollowingtableforunspeciedtorque.
Coarsethread
BoltsizeWrench8t10t
M6x1.010mm8.34–12.26N·m(6.15–9.04lbft)11.12–17.08N·m(8.20–12.60lbft)
M8x1.2513mm19.66–29.42N·m(14.50–21.70lbft)26.44–40.27N·m(19.50–29.70lbft)
M10x1.517mm39.18–58.84N·m(28.90–43.40lbft)53.96–81.35N·m(39.80–60.00lbft)
M12x1.7519mm72.54–109.82N·m(53.50–81.00lbft)96.13–154.56N·m(70.90–114.00lbft)
M14x2.022mm119.58–162.70N·m(88.20–120.00lbft)164.05–221.00N·m(121.00–163.00lbft)
M16x2.024mm183.04–246.76N·m(135.00–182.00lbft)246.76–334.89N·m(182.00–247.00lbft)
M18x2.527mm253.54–343.02N·m(187.00–253.00lbft)344.38–466.40N·m(254.00–344.00lbft)
M20x2.530mm355.22–479.96N·m(262.00–354.00lbft)482.67–653.50N·m(356.00–482.00lbft)
M22x2.532mm473.18–620.96N·m(349.00–458.00lbft)645.37–961.27N·m(476.00–709.00lbft)
M24x3.036mm612.83–828.40N·m(452.00–611.00lbft)833.83–1128.04N·m(615.00–832.00lbft)
M30x3.046mm1217.52–1645.96N·m(898.00–1214.00lb
ft)
1658.17–2245.23N·m(1223.00–
1656.00lbft)
M36x4.055mm1709.69–2310.31N·m(1261.00–
1704.00lbft)
2451.32–3039.74N·m(1808.00–
2242.00lbft)
Finethread
BoltsizeWrench8t10t
M8x1.013mm21.56–33.35N·m(15.90–24.60lbft)29.42–43.12N·m(21.70–31.80lbft)
M10x1.217mm44.06–65.76N·m(32.50–48.50lbft)57.89–87.31N·m(42.70–64.40lbft)
M12x1.2519mm76.47–113.75N·m(56.40–83.90lbft)103.99–157.27N·m(76.70–116.00lbft)
M14x1.522mm130.43–177.61N·m(96.20–131.00lbft)176.26–235.91N·m(130.00–174.00lbft)
M16x1.524mm195.24–264.38N·m(144.00–195.00lbft)260.32–352.51N·m(192.00–260.00lbft)
M18x1.527mm280.65–427.08N·m(207.00–315.00lbft)376.92–509.79N·m(278.00–376.00lbft)
M20x1.530mm391.83–530.12N·m(289.00–391.00lbft)523.35–707.74N·m(386.00–522.00lbft)
M22x1.532mm516.57–699.60N·m(381.00–516.00lbft)692.82–938.23N·m(511.00–692.00lbft)
M24x2.036mm665.71–901.62N·m(491.00–665.00lbft)892.13–1206.68N·m(658.00–890.00lbft)
M30x2.046mm1342.26–1815.44N·m(990.00–1339.00lb
ft)
1781.54–2435.05N·m(1314.00–
1796.00lbft)
M36x3.055mm1884.59–2548.94N·m(1390.00–
1880.00lbft)
2567.92–3473.61N·m(1894.00–
2562.00lbft)
Pipeandhose(FLAREtype)
Threadsize(PF)WrenchTorque
1/4"19mm39.18N·m(28.90lbft)
3/8"22mm49.08N·m(36.20lbft)
1/2"27mm93.14N·m(68.70lbft)
3/4"36mm176.26N·m(130.00lbft)
1"41mm206.08N·m(152.00lbft)
1-1/4"50mm343.02N·m(253.00lbft)
Pipeandhose(ORFStype)
Threadsize(UNF)WrenchTorque
9/16-1819mm39.18N·m(28.90lbft)
11/16-1622mm49.08N·m(36.20lbft)
13/16-1627mm93.14N·m(68.70lbft)
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INTRODUCTION
Threadsize(UNF)WrenchTorque
1-3/16-1236mm176.26N·m(130.00lbft)
1-7/16-1241mm206.08N·m(152.00lbft)
1-11/16-1250mm343.02N·m(253.00lbft)
Fitting
ThreadsizeWrenchTorque
1/4"19mm39.18N·m(28.90lbft)
3/8"22mm49.08N·m(36.20lbft)
1/2"27mm93.14N·m(68.70lbft)
3/4"36mm176.26N·m(130.00lbft)
1"41mm206.08N·m(152.00lbft)
1-1/4"50mm343.02N·m(253.00lbft)
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INTRODUCTION
Torque-Specialtorquesettings
ComponentBoltsizeTighteningtorque
Enginemountingbolt(engine
bracket)M10×1.2557.6–73.9N·m(42.5–54.5lbft)
Enginemountingbolt(bracket
frame)M12×1.75105.8–135.6N·m(78.0–100.0lbft)
Radiatormountingbolt,nutM12×1.7596.1–155.0N·m(70.9–114.3lbft)
Engine
CouplingmountingboltM10×1.548.0–52.9N·m(35.4–39.0lbft)
MainpumpmountingboltM12×1.75105.8–135.6N·m(78.0–100.0lbft)
MaincontrolvalvemountingboltM8×1.2519.7–29.4N·m(14.5–21.7lbft)
RemotecontrollevermountingboltM6×1.08.4–12.3N·m(6.2–9.1lbft)
FueltankmountingboltM10×1.554.1–81.5N·m(39.9–60.1lbft)
HydraulicoiltankmountingboltM10×1.554.1–81.5N·m(39.9–60.1lbft)
Hydraulic
system
Hydraulicswivelmountingbolt,nutM10×1.554.1–81.5N·m(39.9–60.1lbft)
SwingmotormountingboltM14×2.0206.1N·m(152.0lbft)
SwingbearinguppermountingboltM12×1.75105.8–135.6N·m(78.0–100.0lbft)
SwingbearinglowermountingboltM12×1.75105.8–135.6N·m(78.0–100.0lbft)
TravelmotormountingboltM10×1.554.1–81.5N·m(39.9–60.1lbft)
Powertrain
system
SprocketmountingboltM10×1.554.1–81.5N·m(39.9–60.1lbft)
UndercarriageTrackrollermountingboltM12×1.7596.3–155.9N·m(71.0–115.0lbft)
CounterweightmountingboltM20×2.5500.4–671.0N·m(369.1–494.9lbft)
Additionalcounterweightmounting
boltM24×3.0833.8–1126.7N·m(615.0–831.0lbft)
Canopymountingbolt,nutM12×1.75105.8–135.6N·m(78.0–100.0lbft)
Others
Operator'sseatmountingboltM8×1.2519.7–29.4N·m(14.5–21.7lbft)
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INTRODUCTION
Basicinstructions-Shopandassembly
Shimming
Foreachadjustmentoperation,selectadjustingshimsandmeasuretheadjustingshimsindividuallyusingamicrom-
eter,thenadduptherecordedvalues.Donotrelyonmeasuringtheentireshimmingset,whichmaybeincorrect,or
theratedvalueshownoneachshim.
Rotatingshaftseals
Forcorrectrotatingshaftsealinstallation,proceedasfollows:
1.Beforeassembly,allowthesealtosoakintheoilitwillbesealingforatleastthirtyminutes.
2.Thoroughlycleantheshaftandcheckthattheworkingsurfaceontheshaftisnotdamaged.
3.Positionthesealinglipfacingtheuid.
NOTE:Withhydrodynamiclips,takeintoconsiderationtheshaftrotationdirectionandpositionthegroovessothat
theywillmovetheuidtowardstheinnersideoftheseal.
4.Coatthesealinglipwithathinlayeroflubricant(useoilratherthangrease).Fillthegapbetweenthesealinglip
andthedustlipondoublelipsealswithgrease.
5.Insertthesealinitsseatandpressdownusingaatpunchorsealinstallationtool.Donottapthesealwitha
hammerormallet.
6.Whileyouinserttheseal,checkthatthesealisperpendiculartotheseat.Whenthesealsettles,makesurethat
thesealmakescontactwiththethrustelement,ifrequired.
7.T opreventdamagetotheseallipontheshaft,positionaprotectiveguardduringinstallationoperations.
O-ringseals
LubricatetheO-ringsealsbeforeyouinsertthemintheseats.ThiswillpreventtheO-ringsealsfromoverturningand
twisting,whichwouldjeopardizesealingefciency.
Sealingcompounds
Applyasealingcompoundonthematingsurfaceswhenspeciedbytheprocedure.Beforeyouapplythesealing
compound,preparethesurfacesasdirectedbytheproductcontainer.
Spareparts
OnlyuseCNHOriginalPartsorCASECONSTRUCTIONOriginalParts.
Onlygenuinesparepartsguaranteethesamequality,duration,andsafetyasoriginalparts,astheyarethesame
partsthatareassembledduringstandardproduction.OnlyCNHOriginalPartsorCASECONSTRUCTIONOriginal
Partscanofferthisguarantee.
Whenorderingspareparts,alwaysprovidethefollowinginformation:
•Machinemodel(commercialname)andProductIdenticationNumber(PIN)
•Partnumberoftheorderedpart,whichcanbefoundinthepartscatalog
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INTRODUCTION
Protectingtheelectronicand/orelectricalsystemsduringchargingandwelding
Toavoiddamagetotheelectronicand/orelectricalsystems,alwaysobservethefollowingpractices:
1.Nevermakeorbreakanyofthechargingcircuitconnectionswhentheengineisrunning,includingthebattery
connections.
2.Nevershortanyofthechargingcomponentstoground.
3.Alwaysdisconnectthegroundcablefromthebatterybeforearcweldingonthemachineoronanymachine
attachment.
•Positiontheweldergroundclampasclosetotheweldingareaaspossible.
•Ifyouweldincloseproximitytoacomputermodule,thenyoushouldremovethemodulefromthemachine.
•Neverallowweldingcablestolieon,near,oracrossanyelectricalwiringorelectroniccomponentwhileyou
weld.
4.Alwaysdisconnectthenegativecablefromthebatterywhenchargingthebatteryinthemachinewithabattery
charger.
NOTICE:Ifyoumustweldontheunit,youmustdisconnectthebatterygroundcablefromthemachinebattery.
Theelectronicmonitoringsystemandchargingsystemwillbedamagedifthisisnotdone.
5.Removethebatterygroundcable.Reconnectthecablewhenyoucompletewelding.
WARNING
Batteryacidcausesburns.Batteriescontainsulfuricacid.
Avoidcontactwithskin,eyesorclothing.Antidote(external):Flushwithwater.Antidote(eyes):ush
withwaterfor15minutesandseekmedicalattentionimmediately.Antidote(internal):Drinklarge
quantitiesofwaterormilk.Donotinducevomiting.Seekmedicalattentionimmediately.
Failuretocomplycouldresultindeathorseriousinjury.W0111A
Specialtools
ThespecialtoolsthatCASECONSTRUCTIONsuggestsandillustrateinthismanualhavebeenspecicallyre-
searchedanddesignedforusewithCASECONSTRUCTIONmachines.Thespecialtoolsareessentialforreliable
repairoperations.Thespecialtoolsareaccuratelybuiltandrigorouslytestedtoofferefcientandlong-lastingoper-
ation.
Byusingthesetools,repairpersonnelwillbenetfrom:
•Operatinginoptimaltechnicalconditions
•Obtainingthebestresults
•Savingtimeandeffort
•Workinginsafeconditions
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INTRODUCTION
Machinespecications
Engine
ModelKubotaD902
Type4-cycleverticaloverheadvalve,dieselfuel
CoolingmethodWatercooling
Numberofcylindersandarrangement3cylinders,in-line
Firingorder1-2-3
CombustionchambertypeSwirlchambertype
Cylinderborexstroke72mm(2.83in)x73.6mm(2.90in)
Pistondisplacement898cm³(54.8in³)
Compressionratio24:1
Ratedgrosshorsepower(SAEJ1995)12.5kW(17.0Hp)at2300RPM
Maximumtorqueat1900RPM53.54N·m(39.49lbft)
Engineoilquantity3.7L(1.0USgal)
Dryweight75kg(165.3lb)
Highidlingspeed2550–2650RPM
Lowidlingspeed1400–1500RPM
Ratedfuelconsumption208g/Hp·hrat2300RPM(279g/kW·hrat
2300RPM)
Startingmotor12V,1.2kW
Alternator12V,40A
Battery1x12Vx45A·h
Mainpump
TypeVariabledisplacementtandemaxispistonpumps+
gearpump
Capacity2x12cm³/rev(0.7in³/rev)
Ratedoilow2x30.1L/min(8.0USgpm)
Ratedspeed2500RPM
Gearpump
TypeFixeddisplacementgearpumpsinglestage
Capacity2.7cm³/rev(0.2in³/rev)
Ratedoilow6.8L/min(1.8USgpm)
Maincontrolvalve
TypeSectional,9spools(12blocks)
OperatingmethodHydraulicpilotsystem
Mainreliefvalvepressure:P1,P2/P320595–16672kPa(2987–2418psi)
Overloadreliefvalvepressure22553kPa(3271psi)
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Table of contents
Other Case Excavator manuals
