Toro 74721 User Manual

g027479
Figure37
InstallingtheSparkPlug
Tightenthesparkplugto25to29N·m(18to22ft-lb).
g027735
Figure38
CleaningtheBlower
Housing
ServiceInterval:Every100hours/Yearly(whichever
comesrst)
Toensurepropercooling,makesurethatthegrass
screen,coolingns,andotherexternalsurfacesofthe
enginearekeptcleanatalltimes.
Cleanthecoolingnsandexternalsurfacesas
necessary.Makesurethatthecoolingshroudsare
installed.Torquetheblowerhousingscrewsto7.5
N·m(5.5ft-lb).
Important:Operatingtheenginewithablocked
grassscreen,dirtyorpluggedcoolingns,and/or
coolingshroudsremoved,causesenginedamage
duetooverheating.
FuelSystem
Maintenance
DANGER
Incertainconditions,fuelisextremely
ammableandhighlyexplosive.Areor
explosionfromfuelcanburnyou,others,and
candamageproperty.
•Performanyfuel-relatedmaintenance
whentheengineiscold.Dothisoutdoors
inanopenarea.Wipeupanyfuelthat
spills.
•Neversmokewhendrainingfuel,andstay
awayfromanopenameorwhereaspark
mayignitethefuelfumes.
ReplacingtheIn-LineFuel
Filter
ServiceInterval:Every100hours—Replacethe
in-linefuellter.
Neverinstalladirtylterifitisremovedfromthefuel
line.
1.Parkthemachineonalevelsurfaceand
disengagetheblade-controlswitch.
2.Movethemotion-controlleversoutwardtothe
PARKposition,shutofftheengine,removethe
key,andwaitforallmovingpartstostopbefore
leavingtheoperatingposition.
3.Replacethein-linelter(Figure39).
32

Toro 74721 Specifications

General

Transmission	Hydrostatic
Power Source	Gasoline
Starter Type	Electric
Deck Material	Steel
Mulching Capability	Yes
Bagging Capability	Yes
Side Discharge Capability	Yes