Toro DH 220 - Troubleshooting and System Schematics; Engine Starting and Running Problem Diagnosis

Troubleshooting
Problem
PossibleCauseCorrectiveAction
1.Thebladecontrol(PTO)knobis
engaged.
1.Movethebladecontrol(PTO)knobto
theDisengagedposition.
2.Theparkingbrakeisnoton.
2.Settheparkingbrake.
3.Thebatteryisdead.
3.Chargethebattery.
4.Theelectricalconnectionsare
corrodedorloose.
4.Checktheelectricalconnectionsfor
goodcontact.
5.Afuseisblown.5.Replacethefuse.
Thestarterdoesnotcrank.
6.Arelayorswitchisdamaged.
6.ContactanAuthorizedServiceDealer.
1.Theengineloadisexcessive.1.Reducethegroundspeed.
2.Theoillevelinthecrankcaseislow.2.Addengineoiltothecrankcase.
Theengineoverheats.
3.Thecoolingnsandairpassages
undertheengineblowerhousingare
plugged.
3.Removetheobstructionfromthe
coolingnsandairpassages.
1.ThedrivecontrolisinthePush
position.
1.MovethedrivecontroltotheOperate
position.
2.Thetractionbeltisworn,loose,or
broken.
2.ContactanAuthorizedServiceDealer.
Themachinedoesnotdrive.
3.Thetractionbeltisoffthepulley.3.ContactanAuthorizedServiceDealer.
1.Theseatisempty.
1.Sitontheseat.
2.Thefueltankisempty.2.Fillthefueltankwithfuel.
3.Theaircleanerisdirty.
3.Cleanorreplacetheaircleaner
element.
4.Thesparkplugwireislooseor
disconnected.
4.Installthewireonthesparkplug.
5.Asparkplugispitted,fouled,orthe
gapisincorrect.
5.Installanew,correctly-gappedspark
plug.
6.Thechokeisnotclosing.6.Adjustthethrottlecable.
7.Thereisdirtinthefuellter7.Replacethefuellter.
8.Theidlespeedistooloworthemixture
isincorrect.
8.ContactanAuthorizedServiceDealer.
9.Dirt,water,orstalefuelisinthefuel
system.
9.ContactanAuthorizedServiceDealer.
Theenginedoesnotstart,startshard,or
failstokeeprunning.
10.Thefuelshut-offvalveisclosed.10.Openthefuelshut-offvalve.
1.Theengineloadisexcessive.1.Reduceyourgroundspeed.
2.Theaircleanerisdirty.
2.Cleantheaircleanerelement.
3.Theoillevelinthecrankcaseislow.3.Addengineoiltothecrankcase.
4.Thecoolingnsandairpassages
undertheengineblowerhousingare
plugged.
4.Removetheobstructionfromthe
coolingnsandairpassages.
5.Thesparkplugispitted,fouled,orthe
gapisincorrect.
5.Installanew,correctly-gappedspark
plug.
6.
Theventholeinthefuelcapisplugged.
6.
Cleanorreplacethefuelcap.
7.Thereisdirtinthefuellter.7.Replacethefuellter.
Theenginelosespower.
8.
Dirt,water,orstalefuelisinthefuel
system.
8.ContactanAuthorizedServiceDealer.
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