Toro 74538 - Cooling System Maintenance; Cleaning the Air Intake Screen; Cleaning the Cooling System; Brake Maintenance

CoolingSystem
Maintenance
CleaningtheAirIntakeScreen
ServiceInterval:Beforeeachuseordaily
Beforeeachuseremoveanybuild-upofgrass,dirt
orotherdebrisfromthecylinderandcylinderhead
coolingns,airintakescreenonywheelend,and
carburetor-governorleversandlinkage.Thiswillhelp
insureadequatecoolingandcorrectenginespeedand
willreducethepossibilityofoverheatingandmechanical
damagetotheengine.
CleaningtheCoolingSystem
ServiceInterval:Every100hours—Checkandclean
enginecoolingnsandshrouds.
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removetheairintakescreenandfanhousing
(
Figure63).
4.Cleanthedebrisandgrassfromtheengineparts.
5.Installairintakescreen,recoilstarterandfanhousing
(Figure63).
2
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1
Figure63
1.Guardandengineair
intakescreen
2.Fanhousing
BrakeMaintenance
ServicingtheBrake
Beforeeachuse,checkbrakesonbothalevelsurface
andslope.
Alwayssettheparkingbrakewhenyoustopthemachine
orleaveitunattended.Iftheparkingbrakedoesnot
holdsecurely,anadjustmentisrequired.
CheckingtheParkingBrake
ServiceInterval:Beforeeachuseordaily
1.Parkthemachineonalevelsurface,disengagethe
PTO.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Releasethebrake.Thebrakebarsshouldliftoff
thetiresandthehandlevershouldtravelforwardto
theendoftheslotinthecontrolpanel.Adjustthe
brakeifneeded.
4.Engagethebrakeleveruntilthebrakebarsrst
contactthetire(
Figure64).
5.Measurethegapfromthefrontofthehandlever
totheendoftheslotinthecontrolpanelwhenthe
brakebarcontactsthetire.Thismeasurementneeds
tobe3/4inch(19mm).Adjustthebrakeifneeded
(
Figure64).
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