Toro 41593 - Page 52

Figure66
1.Radiatorcap3.Expansiontankcap
2.Expansiontank4.Fullline,expansiontank
3.Placealargedrainpanundertheradiator.
4.Openthedrain(Figure67)anddrainthecoolantinto
thepan.
Figure67
5.Closethedrain(Figure67).
6.Removetheradiatorcap(Figure66).
7.Slowlylltheradiatorwithcoolanttoapproximately
2.5cm(1inch)belowthesealingsurfaceofthecap.
Note:Useenoughcoolanttolltheengineandthe
systemlines.Thiswillallowforthecoolanttoexpand
withoutitoverowingwhiletheengineiswarmingup.
8.Starttheenginewiththecaplooselyontheradiator
(Figure66).
9.Allowtheenginetowarmupuntilthethermostat
opens.
Note:Thisusuallyoccursbetween175and190
degreesF.
CAUTION
Astheenginecontinuestorun,thecoolantwill
becomehotandpressurized.Ifyouopenthe
radiatorcapwhenthecoolantishot,itcould
sprayoutandseverelyburnyouorbystanders.
•Allowtheenginetocoolforatleast15
minutesbeforeopeningtheradiatorcap.
Theradiatorcapmustbecooltothetouch.
•Wearprotectiveclothingandavoidcontact
withhotcoolantasyouopentheradiator
cap.
10.Oncethecoolanthaswarmedup,topoffthecoolant
leveltothesealingsurfaceofthecapandtightenthe
cap(Figure66).
11.Opentheexpansiontankcapandllthetankwith
coolanttotheColdlevel(Figure66).
12.Checkthecoolantlevelsafterseveralenginestartup
andshutdowncycles.
Note:Addcoolanttotheradiatorandexpansiontank
asneeded.
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