Case 590ST - Organic Acid Technology (OAT) Coolant

7-MAINTENANCE
OrganicAcidTechnology(OAT)coolant
Dependingonthedateofmanufacture,yourcoolingsystemmaybeequippedwithconventionalethyleneglycol
coolantsuchas
CASEAKCELAPREMIUMANTI-FREEZEoranOrganicAcidTechnology(OAT)coolantsolution
suchasCASEAKCELAACTIFULL™OTEXTENDEDLIFECOOLANT.YoucaneasilyidentifyCASEAKCELA
ACTIFULL™OTEXTENDEDLIFECOOLANT
byitsyellowcolor.Youshouldnevermixthecoolanttypes.
NOTE:OrganicAcidTechnology(OAT)appearsyellowinsmallquantities.OATcoolantcanalsoappearyellowwhen
againsttranslucentbackgrounds.However,undercertainlightingconditionsandbackgrounds,suchaslookinginto
thecoolantoverowtank,OATcoolantmayappeargreen.Thegreenappearanceissimilartothecolorofethylene
glycolcoolant.Thiscolorappearanceisnormal,whichisnotanindicationofmixedcoolantllinnewunitsbuiltafter
theimplementationofOATcoolant.
ThecoolantsolutionusedmustmeetthefollowingCNH
Industrialmaterialspecicationsforeithercoolanttype:
•
MAT3624forOATcoolant
•
MAT3620forconventionalcoolant
Thedecalshownislocatednearthellpointofthecooling
systemwheneverthefactoryllisCASEAKCELAACT-
IFULL™OTEXTENDEDLIFECOOLANT.Thisdecalis
availableinthreedifferentsizes.Seethetablebelowfor
theassociatedpartnumbers.
CNHIndustrialpart
number
Size
4775733050mmx50mm
47757331
75mmx75mm
47757332100mmx100mm
477573301
NOTICE:NEVERmixOATcoolantwithconventionalcoolant.Undernocircumstancesshouldyoutopoffacooling
systemwithonlywater.Youcanusearefractometertochecktheconcentrationlevel.YoushouldnotuseSupplemen-
talCoolantAdditives(SCA)whenusingCASEAKCELAACTIFULL™OTEXTENDEDLIFECOOLANT.Changethe
coolantsolutionatthechangeintervalrecommended.
IfyouneedtochangeamachinefromconventionalcoolanttoOATcoolantorviceversa,youshouldfollowthe
“Changingcoolanttypes”procedurebelowtoattainthefullbenetofthecoolant.
Changingcoolanttypes
TochangecoolantfromOATcoolanttoconventionalcoolant(orviceversa):
1.Emptytheenginecoolingsystembydrainingthecoolantintoasuitablecontainer.
2.Fillthesystemwithcleanwater.
3.Starttheengineandruntheengineforatleast30min.
NOTE:Makesurethatyouactivatetheheatingsystem(ifequipped)tocirculateuidthroughtheheatercore.
4.RepeatSteps1to3foratotaloftwowashes.
5.Fillthesystemwithconventionalcoolant(orOATcoolant).
6.Operatetheengineuntilitiswarm.Inspectthemachineforleaks.
7.IfyouarechangingtoOATcoolant,thenattachthedecal(CNHIndustrialpartnumber47757330)toindicatethe
useofOATcoolantinthecoolingsystem.
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