Toro 74750 - Drive System Maintenance; Checking the Tire Pressure; Releasing the Electric Brake; Cooling System Maintenance

DriveSystem
Maintenance
CheckingtheTirePressure
ServiceInterval:Every25hours—Checktirepressure.
Maintaintheairpressureinthefrontandreartiresas
specied.Uneventirepressurecancauseunevencut.Check
thepressureatthevalvestem(Figure42).Checkthetires
whentheyarecoldtogetthemostaccuratepressurereading.
Refertothemaximumpressuresuggestedbythetire
manufactureronthesidewallofthecasterwheeltires.
Inatethereardrivewheeltiresto90kPa(13psi).
Figure42
1.Valvestem
ReleasingtheElectricBrake
Theelectricbrakereleasesbymanuallyrotatingthelinkarms
forward.Oncetheelectricbrakeisenergized,thebrakewill
reset.
1.TurntheignitionkeytotheOFFpositionordisconnect
thebattery.
2.Locatetheshaftontheelectricbrakewherethe
brake-linkarmsareconnected(Figure43).
3.Rotatetheshaftforwardtoreleasethebrake.
Figure43
1.Brake-linkarmontheelectric-brake-controlmodule
CoolingSystem
Maintenance
CleaningtheEngineScreen
ServiceInterval:Beforeeachuseordaily—Cleantheengine
air-intakescreen.
Toensurepropercooling,ensurethatthegrassscreen,
coolingns,andotherexternalsurfacesoftheengineare
keptcleanatalltimes.
Useadrybrushtocleangrassandaccumulateddebrisfrom
theair-intakescreenandaroundtheengine.
Important:Topreventcontaminatingthefuelsystem,
donotusewatertocleantheengine.
CleaningtheEngine-Cooling
FinsandShrouds
ServiceInterval:Every100hours—Cleantheengine-cooling
nsandshrouds.
1.Disengagetheblade-controlswitch,movethecontrol
leverstotheNEUTRAL-LOCKposition,andapplythe
parkingbrake.
2.Shutofftheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removetheair-intakescreenandcoolingshrouds.
4.Cleanthedebrisandgrassfromtheengineparts.
5.Installtheair-intakescreenandcoolingshrouds.
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