Toro 74096 - Cooling System Maintenance; Cooling System Safety Precautions; Checking the Cooling System; Cleaning the Radiator

CoolingSystem
Maintenance
CoolingSystemSafety
•Swallowingenginecoolantcancause
poisoning;keepoutofreachfromchildrenand
pets.
•Dischargeofhot,pressurizedcoolantortouching
ahotradiatorandsurroundingpartscancause
severeburns.
–Alwaysallowtheenginetocoolatleast15
minutesbeforeremovingtheradiatorcap.
–Usearagwhenopeningtheradiatorcap,and
openthecapslowlytoallowsteamtoescape.
CheckingtheCooling
System
ServiceInterval:Beforeeachuseordaily
Coolantspecication:50/50solutionofwaterand
permanentethylene-glycolantifreeze
Cooling-systemcapacity:7.6L(8USqt)
1.Openthehood.
2.Checkthelevelofthecoolantintheexpansion
tank(Figure56).
Note:Thecoolantlevelshouldbebetweenthe
marksonthesideofthetank.
g227787
Figure56
1.Expansion-tankcap3.Addline
2.Fullline
3.Ifcoolantlevelislow,removetheexpansion-tank
cap,andaddthespeciedcoolant(Figure56).
Important:Donotoverll.
4.Installtheexpansion-tankcap.
5.Closethehood.
CleaningtheRadiator
ServiceInterval:Every50hours—Cleanthe
engine-coolingsystem(moreoften
indirtyanddustyconditions).
Cleantheradiatortopreventtheenginefrom
overheating.
Note:Ifthemowerdeckorengineshutsoffdueto
overheating,checktheradiatorforexcessivebuildup
ofdebris.
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch,andengagetheparking
brake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Rotatethehoodforward.
4.Usingcompressedair,blowoutdebrisstuck
betweenthensoftheentireradiator,bothfrom
thetopdownandbottomup.
5.Ifdebrisremains,itmaybenecessarytouse
waterfromalow-pressurehose.
Iftheradiatorisclean,proceedtostep7.
6.Covertheenginewithapieceofcardboardor
aplasticsheet.Squirtwaterthroughthens.
Blowthroughwithlow-pressureairfromboth
directions.
Note:Ifdebrisremains,repeatuntilclean.
7.Lowerthehood.
8.Starttheenginetoensurethatthefanfunctions
properly.
ChangingtheEngine
Coolant
ServiceInterval:Every2,000hours/Every2years
(whichevercomesrst)
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch,andengagetheparking
brake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Rotatethehoodforward.
4.Drainthecoolantwhentheengineiscool.
5.Removetheradiatorcap,placeapanunder
theradiator,andremovethedrainplugatthe
bottomoftheradiator.
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