Toro Groundsmaster 4500-D - Cooling System Maintenance; Cooling System Safety Precautions; Checking and Cleaning the Cooling System

CoolingSystem
Maintenance
CoolingSystemSafety
•Swallowingenginecoolantcancausepoisoning;
keepoutofreachfromchildrenandpets.
•Dischargeofhot,pressurizedcoolantortouching
ahotradiatorandsurroundingpartscancause
severeburns.
–Alwaysallowtheenginetocoolatleast15
minutesbeforeremovingtheradiatorcap.
–Usearagwhenopeningtheradiatorcap,and
openthecapslowlytoallowsteamtoescape.
•Donotoperatethemachinewithoutthecovers
inplace.
•Keepyourngers,handsandclothingclearof
rotatingfananddrivebelt.
CheckingtheCooling
System
ServiceInterval:Beforeeachuseordaily
Coolantspecication:50/50mixtureofwaterand
ethyleneglycolantifreeze
Coolingsystemcapacity:8.5L(9USqt).
DANGER
Therotatingfansanddrivebeltscancause
personalinjury.
•Donotoperatethemachinewithoutthe
guardsinplace.
•Keepyourngers,hands,andclothing
clearoftherotatingfananddrivebelt.
•Shutofftheengineandremovethekey
beforeperformingmaintenance.
1.Parkthemachineonalevelsurface,engagethe
parkingbrake,lowerthecuttingunits,shutoff
theengine,andremovethekey.
2.Carefullyremovetheradiatorcap.
g009702
Figure116
1.Expansiontank
3.Checkthecoolantlevelintheradiator.The
radiatorshouldbelledtothetopoftheller
neckandtheexpansiontanklledtotheFULL
mark(Figure116).
4.Ifthecoolantislow,adda50/50mixtureofwater
andethyleneglycolanti-freeze.Donotuse
wateronlyoralcohol/methanolbasedcoolants.
5.Installtheradiatorcapandexpansion-tankcap.
CleaningtheCooling
System
ServiceInterval:Beforeeachuseordaily—Remove
debrisfromtheenginearea,oil
cooler,andradiator(cleanthem
morefrequentlyindirtyconditions).
Thismachineisequippedwithahydraulicallydriven
fandrivesystemthatautomatically(ormanually)
reversestoreduceoilcooler/radiatorandscreen
debrisbuildup.Whilethisfeaturecanhelpreduce
thetimerequiredtocleanoilcooler/radiator,itdoes
noteliminatetheneedforroutinecleaning.Periodic
cleaningandinspectionoftheradiator/coolerisstill
required.
1.Parkthemachineonalevelsurface,engagethe
parkingbrake,lowerthecuttingunits,shutoff
theengine,andremovethekey.
2.Allowthemachinetocooldown;referto
MaintenanceSafety(page58)andCooling
SystemSafety(page78).
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