Toro 25500 - Cleaning the Cooling System

CheckingtheConditionofCooling
SystemComponents
ServiceInterval:Every300hours
Checktheconditionofthecoolingsystemforleaks,damage,
dirt,andloosehoses,andclamps.Clean,repair,tighten,and
replacethecomponentsasnecessary.
CheckingtheConcentrationofthe
Coolant
ServiceInterval:Every1,000hours
Testtheconcentrationofethyleneglycolbasedantifreezein
thecoolant.Ensurethatthecoolantisamixtureof50%
ethyleneglycoland50%water.
CleaningtheCoolingSystem
ServiceInterval:Every2,000hours/Every2years
(whichevercomesrst)
Thecoolantcapacityoftheengineandtheradiator:18.5
L(19.5USqt).
DrainingtheCoolantfromtheSystem
Important:Donotpourcoolantontothegroundorinto
anunapprovedcontainerthatcanleak.
1.Removetheleftandrightsidepanels;referto
RemovingtheSidePanels(page44).
2.Removethe2hex-headboltsthatsecurethereservoir
doortothehoodandopenthedoor(Figure97).
3.Removetherecovery-tankcapfromthetank(Figure
97).
4.Slipacoolantresistanthosethatis3/8x30inchesover
theoutletforthedrainvalveintheradiator(Figure98).
Figure98
1.Drainvalve
3.Drainhose(coolant
resistant)
2.Hoseclamp
5.Securethehosetothedrainvalvewithahoseclamp
(Figure98).
6.Routethehosedownandthroughtheholeinthelower
mountingplateforthebackllblade(Figure99).
Figure99
1.Frontofthemachine4.Drainhose(coolant
resistant)
2.Up5.Drainpan—minimum
capacityof23L(6gallons)
3.Hole(lowermounting
plate)
7.Placeadrainpanwithaminimumcapacityof23L(6
gallons)undertheopenendofthedrainhose(Figure
99).
8.Openthedrainvalveontheradiator,andallowthe
coolanttodraincompletely.
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