Toro 74391 User Manual

Troubleshooting
Problem
PossibleCauseCorrectiveAction
1.Theengineloadisexcessive.1.Reducegroundspeed.
2.Theoillevelinthecrankcaseislow.2.Addoiltothecrankcase.
3.Thecoolingnsandairpassages
undertheengineblowerhousingare
plugged.
3.Removetheobstructionfromthe
coolingnsandairpassages.
4.Theaircleanerisdirty.
4.Cleanorreplacetheaircleaner
element.
Theengineoverheats.
5.Dirt,water,orstalefuelisinfuel
system.
5.ContactanAuthorizedServiceDealer
1.Thebladecontrolswitchisengaged.1.Movethebladecontrolswitchto
Disengaged.
2.Themotioncontrolleversarenotinthe
parkposition.
2.Movethemotioncontrolleversoutward
totheparkposition.
3.Theoperatorisnotseated.
3.Sitontheseat.
4.Thebatteryisdead.
4.Chargethebattery.
5.Theelectricalconnectionsarecorroded
orloose.
5.Checktheelectricalconnectionsfor
goodcontact.
6.Afuseisblown.6.Replacethefuse.
Thestarterdoesnotcrank
7.Arelayorswitchisdamaged.
7.ContactanAuthorizedServiceDealer.
1.Thefueltankisempty.1.Fillthefueltank.
2.Thechokeisnoton.
2.MovethechokelevertoOn.
3.Theaircleanerisdirty.
3.Cleanorreplacetheaircleaner
element.
4.Thesparkplugwire(s)islooseor
disconnected.
4.Installthewire(s)onthesparkplug.
5.Thesparkplug(s)ispitted,fouled,or
thegapisincorrect.
5.Installanew,correctlygappedspark
plug(s).
6.Thereisdirtinfuellter.6.Replacethefuellter.
7.Dirt,water,orstalefuelisinfuel
system.
7.ContactanAuthorizedServiceDealer.
8.Thereisincorrectfuelinthefueltank.8.Drainthetankandreplacethefuelwith
thepropertype.
Theenginewillnotstart,startshard,or
failstokeeprunning.
9.Theoillevelinthecrankcaseislow.9.Addoiltothecrankcase.
1.Theengineloadisexcessive.1.Reducegroundspeed.
2.Theaircleanerisdirty.
2.Cleantheaircleanerelement.
3.Theoillevelinthecrankcaseislow.3.Addoiltothecrankcase.
4.Thecoolingnsandairpassages
undertheengineblowerhousingare
plugged.
4.Removetheobstructionfromthe
coolingnsandairpassages.
5.Thesparkplug(s)ispitted,fouled,or
thegapisincorrect.
5.Installanew,correctlygappedspark
plug(s).
6.Theventinthefuelcapisclosed.6.Opentheventinthefuelcap.
7.Thereisdirtinthefuellter.7.Replacethefuellter.
8.Dirt,water,orstalefuelisinthefuel
system.
8.ContactanAuthorizedServiceDealer.
Theenginelosespower.
9.Thereisincorrectfuelinthefueltank.9.Drainthetankandreplacethefuelwith
thepropertype.
1.Thebypassvalvesareopen
1.Closethetowvalves.
2.Thetractionbeltsareworn,loose,or
broken.
2.ContactanAuthorizedServiceDealer.
3.Thetractionbeltsareoffofthepulleys.3.ContactanAuthorizedServiceDealer.
Themachinedoesnotdrive.
4.Thetransmissionhasfailed.4.ContactanAuthorizedServiceDealer.
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Toro 74391 Specifications

General

Brand	Toro
Model	74391
Category	Lawn Mower
Language	English