Toro 30381N - 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—Checktheengine
coolantlevel.
Thecoolingsystemislledwitha50/50solutionofwater
andpermanentethyleneglycolantifreeze.Checkthelevelof
thecoolantintheexpansiontankatthebeginningofeachday
beforestartingtheengine.Thecapacityofthecoolingsystem
is7.5liters(6quarts).
1.Checkthelevelofthecoolantintheexpansiontank
(Figure66).Thecoolantlevelshouldbebetweenthe
marksonthesideofthetank.
Figure66
1.Expansiontank
2.Ifcoolantlevelislow,removetheexpansiontankcap
andreplenishthesystem.Donotoverll.
CAUTION
Swallowingenginecoolantcancause
poisoning.
•Donotswallowenginecoolant.
•Keepoutofreachfromchildrenandpets.
3.Installtheexpansiontankcap.
CleaningtheRadiator
ServiceInterval:Beforeeachuseordaily—Cleanthe
radiatorwithcompressedair(donotuse
water)
Topreventtheenginefromoverheating,theradiatormust
bekeptclean.Normally,checktheradiatordailyand,if
necessary,cleananydebrisofftheseparts.However,itwill
benecessarytocheckandcleantheradiatorfrequentlyin
extremelydustyanddirtyconditions.
Note:IfthePTOorengineshutsoffduetooverheating,
rstchecktheradiatorforexcessivebuildupofdebris,ice,
orsnow .
Cleantheradiatorasfollows:
1.Openthehood.
2.Workingfromthefansideoftheradiator,blowout
debriswithlowpressure(50psi)compressedair(do
notusewater).Repeatthestepfromthefrontofthe
radiatorandagainfromthefanside.
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