Toro 41594 - Cooling System Maintenance; Servicing the Cooling System

CoolingSystem
Maintenance
ServicingtheCoolingSystem
ServiceInterval:Every100hours—Checkthecooling
systemhosesforwearanddamage.
Every400hours/Yearly(whichevercomes
rst)—Checkthecoolant(asdirectedbythe
manufacturer)andchangeifnecessary.
Coolingsystemcapacity:5.5L(5.8USqt)
Coolanttype:asolutionof50%waterand50%permanent
ethyleneglycolantifreeze
Important:Donotaddcoolanttoanoverheatedengine
untiltheenginehasfullycooled.Addingcoolanttoan
overheatedenginemaycracktheengineblock.
Checktheenginecoolantconcentrationasdirectedbythe
coolantmanufacturer.
1.Positionthesprayeronalevelsurface,settheparking
brake,stopthepump,stoptheengine,andremovethe
keyfromthestarterswitch.
CAUTION
Iftheenginehasbeenrunning,thecoolant
maybehotandpressurized.Ifyouopenthe
radiatorcapwhenthecoolantishot,itcould
sprayoutandseverelyburnyouorbystanders.
Allowtheenginetocoolforatleast15minutes
beforeopeningtheradiatorcap.Theradiator
capmustbecooltothetouch.
2.Whentheengineiscool,removetheradiatorcap
(Figure71).
Figure71
1.Radiatorcap3.Expansiontankcap
2.Expansiontank4.Fullline,expansiontank
3.Placealargedrainpanundertheradiator.
4.Openthedrain(Figure72)anddrainthecoolantinto
thepan.
Figure72
5.Closethedrain(Figure72).
6.Removetheradiatorcap(Figure71).
7.Slowlylltheradiatorwithcoolanttoapproximately
2.5cm(1inch)belowthesealingsurfaceofthecap.
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