Toro Groundsmaster
3500-D - Cooling System Maintenance; Cooling System Safety and Checks

CoolingSystem
Maintenance
CoolingSystemSafety
•Swallowingenginecoolantcancausepoisoning;
keepoutofreachfromchildrenandpets.
•Dischargeofhot,pressurizedcoolantortouching
ahotradiatorandsurroundingpartscancause
severeburns.
–Alwaysallowtheenginetocoolatleast15
minutesbeforeremovingtheradiatorcap.
–Usearagwhenopeningtheradiatorcap,and
openthecapslowlytoallowsteamtoescape.
•Donotoperatethemachinewithoutthecovers
inplace.
•Keepyourngers,handsandclothingclearof
rotatingfananddrivebelt.
CheckingtheCooling
System
ServiceInterval:Beforeeachuseordaily
Cleananydebrisoffoftheradiator(Figure58).
g195255
Figure58
1.Radiator
Cleantheradiatorhourlyifconditionsareextremely
dustyanddirty;refertoCleaningtheCoolingSystem
(page51).
Thecoolingsystemislledwitha50/50solution
ofwaterandpermanentethyleneglycolanti-freeze.
Checkthecoolantlevelatthebeginningofeachday
beforestartingtheengine.
Thecapacityofthecoolingsystemisapproximately
5.7L(6USqt).
CAUTION
Iftheenginehasbeenrunning,the
pressurized,hotcoolantcanescapeand
causeburns.
•Donotopentheradiatorcapwhenthe
engineisrunning.
•Usearagwhenopeningtheradiatorcap,
andopenthecapslowlytoallowsteamto
escape.
1.Checkthecoolantlevelintheexpansiontank
(Figure59).
Note:Withacoldengine,thecoolantlevel
shouldbeapproximatelymidwaybetweenthe
marksonthesideofthetank.
g031618
Figure59
1.Expansiontank
2.Ifthecoolantlevelislow,removethe
expansion-tankcapandreplenishthesystem.
Note:Donotoverll.
3.Installtheexpansion-tankcap.
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