CoolingSystem
Maintenance
CoolingSystemSafety
CAUTION
Dischargeofhot,pressurizedcoolantortouchinga
hotradiatorandsurroundingpartscancausesevere
burns.
•Donotremovetheradiatorcapwhentheengine
ishot.Alwaysallowtheenginetocoolatleast15
minutesoruntiltheradiatorcapiscoolenough
totouchwithoutburningyourhandbefore
removingtheradiatorcap.
•Donottouchtheradiatorandsurroundingparts
thatarehot.
DANGER
Swallowingenginecoolantcancausepoisoning.
•Donotswallowenginecoolant.
•Keepoutofreachfromchildrenandpets.
CheckingtheCoolingSystem
ServiceInterval:Beforeeachuseordaily—Checkthe
coolantlevel.
Checklevelofcoolantatthebeginningofeachday.The
capacityofthesystemonamachinewithoutacabis10.4L
(13.5qt)andwithacabis17L(18qt).
RecommendedCoolant
Note:CoolantmustmeetorexceedASTMStandard3306
Glycolbasedpre-dilutedcoolant(50/50blend)
or
Glycolbasedcoolantmixedwithdistilledwater(50/50blend)
or
Glycolbasedcoolantmixedwithgoodqualitywater(50/50
blend)aslistedintheCumminsManual
CaCO
3
+MgCO
3
<170ppm
Chloride<40ppm(CI)
Sulfer<100ppm(SO
4
)
DANGER
Therotatingfansanddrivebeltscancausepersonal
injury.
•Donotoperatethemachinewithoutthecovers
inplace.
•Keepngers,hands,andclothingclearofthe
rotatingfananddrivebelt.
•Shutofftheengineandremovetheignitionkey
beforeperformingmaintenance.
CAUTION
Iftheenginehasbeenrunning,thepressurized,hot
coolantcanescapeandcauseburns.
•Donotopentheradiatorcapwhentheengine
isrunning.
•Usearagwhenopeningtheradiatorcap,and
openthecapslowlytoallowsteamtoescape.
1.Carefullyremovetheradiatorcapandexpansiontank
cap(Figure77).
Figure77
1.Expansiontank2.Radiatorcap
2.Checkthecoolantlevelintheradiator.
Note:Theradiatorshouldbelledtothetopofthe
llerneckandtheexpansiontanklledtotheFull
mark.
3.Ifthecoolantislow,addrecommendedreplacement
coolant,asrequired.
Note:Donotusewateronlyor
alcohol/methanol-basedcoolants.
4.Installtheradiatorcapandexpansion-tankcap.
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