Toro 2024 - Cooling System Maintenance; Flushing and Filling the Cooling System

Figure103
1.Fillerneck(radiator)3.Coolantsystemcleaning
solution
2.Funnel
C.Closethedrainplug(Figure102).
Important:Donotinstalltheradiatorcap.
D.Operatetheenginefor5minutesoruntilthe
coolanttemperatureindicates82°C(180°F),and
thenstoptheengine.
CAUTION
Thecleaningsolutionishotandcan
causeburns.
Stayawayfromthedischargeendofthe
coolantdrain.
E.Openthedrainplugfortheradiator,anddrain
thecleaningsolutionintoadrainpan.
F.Cleanthethreadsonthedrainplugandapply3
layersofPTFEsealingtape.
G.Closethedrainplug.
3.Flushthecoolingsystemasfollows:
A.Opentheller-neckcap.
B.Filltheradiatorwithcleanwater(Figure104).
Figure104
1.Fillerneck
3.Cleanwater
2.Funnel
C.Closetheller-neckcap.
D.Operatetheenginefor5minutesoruntilthe
coolanttemperatureindicates82°C(180°F),and
thenstoptheengine.
CAUTION
Thewaterishotandcancauseburns.
Stayawayfromthedischargeendofthe
coolantdrainplug.
E.Openthedrainpluganddrainthewaterintoa
drainpan.
F.Cleanthethreadsonthedrainplugandapply3
layersofPTFEsealingtape.
G.Ifthewaterdrainedfromtheradiatorisdirty,
performsteps3-Athrough3-Euntilthewater
drainedfromtheradiatorisclean.
H.Closethedrainplug(Figure102).
FillingtheSystemwithCoolant
Important:Youmustllthecoolingsystemproperlyto
preventairlocksinthecoolingpassages.Failingtovent
thecoolingsystemproperlycanseverelydamagethe
coolingsystemandengine.
Important:Useamixtureof50%ethyleneglycoland
50%watermixtureorequivalentinthemachine.The
lowestambientoperatingtemperatureforthismixture
isabove-37°C(-34°F).Iftheambienttemperatureis
lower,adjustthemixture.Useamixtureofethylene
glycolandwaterorequivalentinthemachineallyear.
1.Parkthemachineonalevelsurface,stoptheengine,
andremovetheignitionkey.
2.Removetheradiatorcap(Figure101).
3.Filltheradiatorwithcoolantuntiltheuidlevelisup
tothebottomofthellerneck(Figure105).
Note:Thecoolantcapacityofboththeengineand
theradiatoris16.8L(17.7USqt).
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