Toro 74549 - Troubleshooting Engine Issues

Troubleshooting
Problem
PossibleCauseCorrectiveAction
1.Fueltankisemptyorshut-offvalve
closed.
1.Fillfueltankwithgasolineandopen
valve
2.Chokeisnoton.
2.Movethechokelevertochokeposition.
3.Sparkplugwireislooseor
disconnected.
3.Installwireonsparkplug.
4.Sparkplugispitted,fouled,orthegap
isincorrect.
4.Installanew,correctlygappedspark
plug.
5.Aircleanerisdirty.
5.Servicetheaircleanerelement.
6.Dirtinthefuellter.6.Replacethefuellter.
7.Dirt,water,orstalefuelisinthefuel
system.
7.ContactanAuthorizedServiceDealer.
Enginewillnotstart,startshard,orfails
tokeeprunning.
8.Thegapbetweenthesafetyinterlock
switchesisnotcorrect.
8.ContactanAuthorizedServiceDealer.
1.Engineloadisexcessive.1.Reducethegroundspeed.
2.Aircleanerisdirty.
2.Servicetheaircleaner.
3.Oillevelinthecrankcaseislow.
3.Addoiltothecrankcase.
4.Coolingnsandairpassagesunder
theengineblowerhousingareplugged.
4.Removetheobstructionfromthe
coolingnsandairpassages.
5.Sparkplugispitted,fouled,orthegap
isincorrect.
5.Installanew,correctlygappedspark
plug.
6.Ventholeinthefuelcapisplugged.6.Cleanorreplacethefuelcap.
7.Dirtinthefuellter.7.Replacethefuellter.
Enginelosespower.
8.Dirt,water,orstalefuelisinthefuel
system.
8.ContactanAuthorizedServiceDealer.
1.Engineloadisexcessive.1.Reducethegroundspeed.
2.Oillevelinthecrankcaseislow.
2.Addoiltothecrankcase.
Engineoverheats.
3.Coolingnsandairpassagesunder
theengineblowerhousingareplugged.
3.Removetheobstructionfromthe
coolingnsandairpassages.
1.Hydraulicoilreservoirlow.1.Addhydraulicoiltothereservoir.
2.Airinthehydraulicsystem.2.Bleedtheairoutthehydraulicsystem.
3.Pumpdrivebeltslipping.3.Replacethepumpdrivebelt.
4.Pumpdrivebeltidlerspringmissing.4.Replacethepumpdrivebeltidler
spring.
Machinedoesnotdrive.
5.Pumpby-passvalvesareopen.5.Tightentheby-passvalves.Torqueto
110to130in-lb(12to15N-m).
1.Cuttingblade(s)is/arebentor
unbalanced.
1.Installnewcuttingblade(s).
2.Blademountingboltisloose.2.Tightentheblademountingbolt.
3.Enginemountingboltsareloose.3.Tightentheenginemountingbolts.
4.Looseenginepulley,idlerpulley,or
bladepulley.
4.Tightentheappropriatepulley.
5.Enginepulleyisdamaged.
5.ContactanAuthorizedServiceDealer.
Abnormalvibration.
6.Bladespindleisbent.
6.ContactanAuthorizedServiceDealer.
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