Toro 30473 - Cooling System Maintenance; Checking the Cooling System; Cleaning the Radiator

CoolingSystem
Maintenance
DANGER
Dischargeofhotpressurizedcoolantortouching
hotradiatorandsurroundingpartscancausesevere
burns.
•Donotremovetheradiatorcapwhentheengine
ishot.Alwaysallowtheenginetocoolatleast
15minutesoruntiltheradiatorcapiscool
enoughtotouchwithoutburningyourhand
beforeremovingtheradiatorcap.
•Donottouchradiatorandsurroundingparts
thatarehot.
DANGER
Therotatingfananddrivebeltcancausepersonal
injury.
•Donotoperatethemachinewithoutthecovers
inplace.
•Keepngers,handsandclothingclearof
rotatingfananddrivebelt.
•Shutofftheengineandremovetheignitionkey
beforeperformingmaintenance.
CheckingtheCoolingSystem
ServiceInterval:Beforeeachuseordaily—Checkthe
engine-coolantlevel.
Thecoolingsystemislledwitha50/50solutionofwater
andpermanentethylene-glycolantifreeze.Thecapacityofthe
coolingsystemis7.5L(6quarts).
1.Checkthelevelofthecoolantintheexpansiontank
(Figure36).
Note:Thecoolantlevelshouldbebetweenthemarks
onthesideofthetank.
Figure36
1.Expansiontank
2.Ifcoolantlevelislow,removetheexpansion-tankcap
andreplenishthesystem.
Important:Donotoverll
3.Installtheexpansion-tankcap.
CleaningtheRadiator
ServiceInterval:Beforeeachuseordaily
Cleantheradiatortopreventtheenginefromoverheating.
Note:Ifthemowerdeckorengineshutsoffdueto
overheating,checktheradiatorforexcessivebuildupofdebris.
Cleantheradiatorasfollows:
1.Openthehood.
2.Workingfromthefansideoftheradiator,blow
outdebriswithlowpressure(345kPaor50psi),
compressedair.Repeatfromthefrontoftheradiator
andtheotherfanside.
Important:Donotusewater.
3.Afteryouthoroughlycleantheradiator,cleanout
debristhatmayhavecollectedinthechannelatthe
radiatorbase.
4.Closethehood.
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