Case CX26C User manual

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CX26C
Mini Excavator
SERVICE MANUAL
CX26C
Mini Excavator
Part number 51422576
English
January 2018
© 2018 CNH Industrial Italia S.p.A. All Rights Reserved.
Part number 51422576
SERVICE MANUAL

Contents
INTRODUCTION
Engine.......................................................................................10
[10.001]Engineandcrankcase.............................................................10.1
[10.101]Cylinderheads.....................................................................10.2
[10.102]Panandcovers....................................................................10.3
[10.103]Crankshaftandywheel............................................................10.4
[10.105]Connectingrodsandpistons.......................................................10.5
[10.106]Valvedriveandgears..............................................................10.6
[10.304]Enginelubricationsystem..........................................................10.7
[10.400]Enginecoolingsystem.............................................................10.8
[10.216]Fueltanks..........................................................................10.9
[10.202]Aircleanersandlines............................................................10.10
[10.206]Fuellters........................................................................10.11
[10.218]Fuelinjectionsystem.............................................................10.12
[10.220]Throttlelinkage...................................................................10.13
[10.254]Intakeandexhaustmanifoldsandmufer.......................................10.14
[10.414]Fananddrive....................................................................10.15
Hydraulicsystems.......................................................................35
[35.000]Hydraulicsystems..................................................................35.1
[35.106]Variabledisplacementpump.......................................................35.2
[35.300]Reservoir,cooler,andlters........................................................35.3
[35.359]Maincontrolvalve..................................................................35.4
[35.355]Hydraulichandcontrol.............................................................35.5
[35.352]Hydraulicswingsystem............................................................35.6
[35.353]Hydraulictravelsystem............................................................35.7
[35.354]Hydrauliccentraljoint..............................................................35.8
[35.356]Hydraulicfootcontrol...............................................................35.9
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[35.357]Pilotsystem......................................................................35.10
[35.360]Hammerandrotatingbuckethydraulicsystem..................................35.11
[35.736]Boomhydraulicsystem..........................................................35.12
[35.737]Dipperhydraulicsystem..........................................................35.13
[35.738]Excavatorandbackhoebuckethydraulicsystem................................35.14
[35.734]Toolquickcouplerhydraulicsystem.............................................35.15
[35.739]Swingarmhydraulicsystem.....................................................35.16
[35.741]Dozerbladecylinders............................................................35.17
Framesandballasting.................................................................39
[39.103]Swingringassembly...............................................................39.1
[39.140]Ballastsandsupports..............................................................39.2
Tracksandtracksuspension........................................................48
[48.100]Tracks..............................................................................48.1
[48.130]Trackframeanddrivingwheels....................................................48.2
[48.134]Tracktensionunits.................................................................48.3
[48.138]Trackrollers........................................................................48.4
Electricalsystems.......................................................................55
[55.000]Electricalsystem...................................................................55.1
[55.011]Fueltanksystem...................................................................55.2
[55.012]Enginecoolingsystem.............................................................55.3
[55.013]Engineoilsystem..................................................................55.4
[55.014]Engineintakeandexhaustsystem.................................................55.5
[55.100]Harnessesandconnectors.........................................................55.6
[55.302]Battery..............................................................................55.7
[55.201]Enginestartingsystem.............................................................55.8
[55.202]Coldstartaid.......................................................................55.9
[55.301]Alternator.........................................................................55.10
[55.404]Externallighting..................................................................55.11
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[55.405]Externallightingswitchesandrelays............................................55.12
[55.408]Warningindicators,alarms,andinstruments....................................55.13
[55.512]Cabcontrols......................................................................55.14
[55.514]Cablighting......................................................................55.15
[55.518]Wiperandwashersystem........................................................55.16
[55.524]Cabcontrols(Liftarm,Boom,Dipper,Bucket)...................................55.17
[55.525]Cabenginecontrols..............................................................55.18
Booms,dippers,andbuckets.......................................................84
[84.100]Bucket..............................................................................84.1
[84.114]Boompivotingsupport.............................................................84.2
[84.912]Dipperarm.........................................................................84.3
[84.910]Boom...............................................................................84.4
Dozerbladeandarm...................................................................86
[86.110]Dozerblade........................................................................86.1
Platform,cab,bodywork,anddecals.............................................90
[90.100]Enginehoodandpanels...........................................................90.1
[90.118]Protectionsandfootboards.........................................................90.2
[90.120]Mechanically-adjustedoperatorseat...............................................90.3
[90.150]Cab.................................................................................90.4
[90.160]Cabinteriortrimandpanels........................................................90.5
[90.105]Machineshieldsandguards.......................................................90.6
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INTRODUCTION
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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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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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