Toro Z Master Professional 7500-D Series - Cooling System Maintenance; Cooling System Safety; Checking the Engine-Coolant Level; Cleaning the Radiator and Engine-Hood Screen

CoolingSystem
Maintenance
CoolingSystemSafety
•Swallowingenginecoolantcancausepoisoning;
keepoutofreachfromchildrenandpets.
•Dischargeofhot,pressurizedcoolantortouching
ahotradiatorandsurroundingpartscancause
severeburns.
–Alwaysallowtheenginetocoolatleast15
minutesbeforeremovingtheradiatorcap.
–Usearagwhenopeningtheradiatorcap,and
openthecapslowlytoallowsteamtoescape.
Checkingthe
Engine-CoolantLevel
ServiceInterval:Beforeeachuseordaily
Coolantspecication:50/50solutionofwaterand
permanentethylene-glycolantifreeze
Cooling-systemcapacity:7.6L(8USqt)
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch,andengagetheparking
brake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Openthehood.
4.Checkthelevelofthecoolantintheexpansion
tank(Figure58).
Note:Thecoolantlevelshouldbebetweenthe
marksonthesideofthetank.
g227787
Figure58
1.Expansion-tankcap3.Addline
2.Fullline
5.Ifcoolantlevelislow,removetheexpansion-tank
cap,andaddthespeciedcoolant(Figure58).
Important:Donotoverll.
6.Installtheexpansion-tankcap.
7.Closethehood.
CleaningtheRadiatorand
Engine-HoodScreen
ServiceInterval:Every50hours—Cleanthe
engine-coolingsystem(moreoften
indirtyanddustyconditions).
Every50hours—Cleantheengine-hoodscreen
(moreoftenindirtyanddustyconditions).
Cleantheradiatorandhoodscreentopreventthe
enginefromoverheating.
Note:Ifthemowerdeckorengineshutsoffdueto
overheating,checktheradiatorforexcessivebuildup
ofdebris.
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch,andengagetheparking
brake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Rotatethehoodforward.
4.Usingcompressedair,blowoutdebrisstuck
betweenthensoftheentireradiator,bothfrom
thetopdownandbottomup.
5.Usingcompressedair,blowouttheengine-hood
screen.
6.Ifdebrisremains,itmaybenecessarytouse
waterfromalow-pressurehose.
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