Toro 74633 - Troubleshooting; The engine overheats.; The starter does not crank.; The engine does not start, starts hard, or fails to keep running.

Troubleshooting
Problem
PossibleCauseCorrectiveAction
1.Theengineloadisexcessive.1.Reducethegroundspeed.
2.Theoillevelinthecrankcaseislow.2.Addoiltothecrankcase.
3.Thecoolingnsandairpassages
undertheengineblowerhousingare
plugged.
3.Removetheobstructionfromthe
coolingnsandairpassages.
4.Theaircleanerisdirty.
4.Cleanorreplacetheair-cleaner
element.
Theengineoverheats.
5.Dirt,water,orstalefuelisinthefuel
system.
5.ContactanAuthorizedServiceDealer.
1.Theblade-controlswitchisengaged.1.Movetheblade-controlswitchto
Disengaged.
2.Themotion-controlleversarenotinthe
parkposition.
2.Movethemotion-controlleversoutward
totheparkposition.
3.Thebatteryisdead.
3.Chargethebattery.
4.Theelectricalconnectionsarecorroded
orloose.
4.Checktheelectricalconnectionsfor
goodcontact.
5.Afuseisblown.5.Replacethefuse.
Thestarterdoesnotcrank.
6.Arelayorswitchisdamaged.
6.ContactanAuthorizedServiceDealer.
1.Thefueltankisempty.1.Fillthefueltank.
2.Thechokeisnoton.
2.MovethechokelevertoOn.
3.Theaircleanerisdirty.
3.Cleanorreplacetheair-cleaner
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.
Theenginedoesnotstart,startshard,or
failstokeeprunning.
9.Theoillevelinthecrankcaseislow.9.Addoiltothecrankcase.
1.Theengineloadisexcessive.1.Reducethegroundspeed.
2.Theaircleanerisdirty.
2.Cleantheair-cleanerelement.
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.Thefuel-tankventisblocked.6.ContactanAuthorizedServiceDealer.
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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