Toro 74922 - Cooling System Maintenance; Cleaning the Engine Screen and Engine-Oil Cooler; Cleaning the Engine-Cooling Fins and Shrouds

•Ifthegapislessthan0.25mm(0.01
inch),theninstalltheshimandreferto
Troubleshooting(page66).
•Ifthegapissufcient,proceedtothesafety
checkinstepF.
F.Performthefollowingsafetycheck:
i.Sitontheseatandstarttheengine.
ii.Makesurethebladesdonotengagewith
thePTOswitchintheOffposition,and
thattheclutchisdisengaged.
Iftheclutchdoesnotdisengage,installthe
shimagainandrefertoTroubleshooting
(page66).
iii.EngageanddisengagethePTOswitch10
consecutivetimestoensurethattheclutch
isfunctioningproperly.
CoolingSystem
Maintenance
CleaningtheEngineScreen
andEngine-OilCooler
ServiceInterval:Beforeeachuseordaily
Removeanybuildupofgrass,dirt,orotherdebrisfromthe
oilcooler(Figure72).
G008804
Figure72
Beforeeachuse,removeanybuildupofgrass,dirt,or
otherdebrisfromtheenginescreen.Thiswillhelpensure
adequatecooling,correcttheenginespeed,andwillreduce
thepossibilityofoverheatingandmechanicaldamagetothe
engine(Figure73).
CleaningtheEngine-Cooling
FinsandShrouds
ServiceInterval:Every100hours/Yearly(whichevercomes
rst)
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
3.Removetheair-intakescreen,therecoilstarter,and
thefanhousing(Figure73).
4.Cleanthedebrisandgrassfromtheengineparts.
5.Installtheair-intakescreen,therecoilstarter,andthe
fanhousing(Figure73).
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