Toro 07367 - Changing Engine Coolant

ChangingEngineCoolant
ServiceInterval:Every1,000hours/Every2years
(whichevercomesrst)
1.Parkthemachineonalevelsurface.
2.Raisethebed(ifsoequipped)andplacethesafety
supportontheextendedliftcylindertoholdupthe
bed.
CAUTION
Iftheenginehasbeenrunning,thepressurized,
hotcoolantcanescapeandcauseburns.
•Donotopentheradiatorcapwhenthe
engineisrunning.
•Allowenginetocoolatleast15minutesor
untiltheradiatorcapiscoolenoughtotouch
withoutburningyourhand.
•Usearagwhenopeningtheradiatorcap,and
openthecapslowlytoallowsteamtoescape.
3.Removetheradiatorcap.
Figure64
1.Radiatorcap
4.Removethereservetankcap.
Figure65
1.Reservetankcap
5.Disconnectthelowerradiatorhoseandallowcoolant
toowintoadrainpan.Whencoolantstops,
connectthelowerradiatorhose.
6.Openthebleedscrewontopofthewaterpump
(
Figure66).
Figure66
1.Bleedscrew
7.Removethecoolantdrainplugfromtheengineand
allowcoolanttoowintoadrainpan.Whencoolant
stops,installthedrainplug.
8.Slowlylltheradiatorwitha50/50mixtureofwater
andpermanentethyleneglycolanti–freeze
9.Withthebleedscrewopen,starttheengine.Allow
enginetoidleuntiltheuidhasacleanstreamout
ofthebleedscrew .
10.Closethebleedscrewwhiletheengineisrunning
11.Topofftheradiatorandinstallthecap.
12.Slowlyllthereservetankuntillevelreachesthe
Coldline.Donotoverll.Installthereservetank
cap.
13.Starttheengineandoperateituntilwarm.
14.Stoptheengine.Checkthecoolantleveland
replenishit,ifrequired.
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