Toro 30381 - Cooling System Maintenance; Checking the Cooling System; Cleaning the Radiator

CoolingSystem
Maintenance
DANGER
Discharginghotpressurizedcoolantortouching
hotradiatorandsurroundingpartscancausesevere
burns.
•Donotremovetheradiatorcapwhentheengine
ishot.Alwaysallowtheenginetocoolatleast
15minutesoruntiltheradiatorcapiscool
enoughtotouchwithoutburningyourhand
beforeremovingtheradiatorcap.
•Donottouchradiatorandsurroundingparts
thatarehot.
DANGER
Therotatingfananddrivebeltcancausepersonal
injury.
•Donotoperatethemachinewithoutthecovers
inplace.
•Keepngers,handsandclothingclearof
rotatingfananddrivebelt.
•Shutofftheengineandremovetheignitionkey
beforeperformingmaintenance.
CAUTION
Swallowingenginecoolantcancausepoisoning.
•Donotswallowenginecoolant.
•Keepoutofreachfromchildrenandpets.
CheckingtheCoolingSystem
ServiceInterval:Beforeeachuseordaily
Thecoolingsystemislledwitha50/50solutionofwater
andpermanentethyleneglycolantifreeze.Checkthelevelof
thecoolantintheexpansiontankatthebeginningofeachday
beforestartingtheengine.Thecapacityofthecoolingsystem
is6quarts(7.5l).
1.Checkthelevelofthecoolantintheexpansiontank
(
Figure74).Thecoolantlevelshouldbebetweenthe
marksonthesideofthetank.
Figure74
1.Expansiontank
2.Ifcoolantlevelislow,removetheexpansiontankcap
andreplenishthesystem.Donotoverll.
3.Installtheexpansiontankcap.
CleaningtheRadiator
ServiceInterval:Beforeeachuseordaily
Every1,500hours—Replacemovinghoses.
Every200hours—Inspectcoolingsystemhosesand
seals.Replacethemifcrackedortorn.
Every2years—Flushandreplacecoolingsystemuid.
Topreventtheenginefromoverheating,theradiatormust
bekeptclean.Normally,checktheradiatordailyand,if
necessary,cleananydebrisofftheseparts.However,itwill
benecessarytocheckandcleantheradiatorfrequentlyin
extremelydustyanddirtyconditions.
Note:Ifthemowerdeckorengineshutsoffdueto
overheating,rstchecktheradiatorforexcessivebuildupof
debris.
Cleantheradiatorasfollows:
1.Openthehood.
2.Workingfromthefansideoftheradiator,blowout
debriswithlowpressure(50psi)compressedair(do
notusewater).Repeatthestepfromthefrontofthe
radiatorandagainfromthefanside.
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