Exmark Frontrunner 720,000 & Higher Serial Nos. - Troubleshooting; Starter and Engine Starting Problems; Engine Performance Issues

Troubleshooting
Troubleshooting
Important:Itisessentialthatalloperatorsafetymechanismsbeconnectedandinproperoperating
conditionpriortomoweruse.
Whenaproblemoccurs,DoNotoverlookthesimplecauses.Forexample:startingproblemscouldbe
causedbyanemptyfueltank.
Thefollowingtablelistssomeofthecommoncausesoftrouble.DoNotattempttoserviceorreplacemajor
itemsoranyitemsthatcallforspecialtimingofadjustmentprocedures(suchasvalves,governor,etc.).Have
thisworkdonebyyourEngineServiceDealer.
Note:WhendisconnectingelectricalconnectorsDoNotpullonthewirestoseparatetheconnectors.
ProblemPossibleCauseCorrectiveAction
1.PTOisengaged.
1.DisengagethePTO.
2.Parkingbrakeisnot.2.Settheparkingbrake.
3.Driveleversarenotinneutrallock
position.
3.Ensurethedriveleversareintheneutral
lockposition.
4.Batterydoesnothaveafullcharge.4.Chargethebattery.
5.Electricalconnectionsarecorroded,loose
orfaulty.
5.Checktheelectricalconnectionsfor
goodcontact.Cleanconnectorterminals
thoroughlywithelectricalcontactcleaner,
applydielectricgreaseandreconnect.
6.Fuseisblown.6.Replacetheblownfuse.
Starterdoesnotcrank
7.Relayorswitchisdefective.7.ContactanAuthorizedServiceDealer.
1.Fueltankisempty.1.Fillthefueltank.
2.Fuelshutoffvalveisclosed.
2.Openthefuelshutoffvalve.
3.Oillevelinthecrankcaseislow .
3.Addoiltothecrankcase.
4.Thethrottleandchokearenotinthe
correctposition.
4.Besurethethrottlecontrolismidway
betweenthe“SLOW”and“FAST”
positions,andthechokeisinthe“ON”
positionforacoldengineorthe“OFF”
positionforawarmengine.
5.Dirtinfuellter.5.Replacethefuellter.
6.Dirt,water,orstalefuelisinthefuel
system.
6.ContactanAuthorizedServiceDealer.
7.Aircleanerisdirty.
7.Cleanorreplacetheaircleanerelement.
8.Electricalconnectionsarecorroded,loose
orfaulty.
8.Checktheelectricalconnectionsfor
goodcontact.Cleanconnectorterminals
thoroughlywithelectricalcontactcleaner,
applydielectricgreaseandreconnect.
9.Relayorswitchisdefective.9.ContactanAuthorizedServiceDealer.
10.Faultysparkplug.
10.Clean,adjustorreplacesparkplug.
Enginewillnotstart,startshard,orfailsto
keeprunning
11.Sparkplugwireisnotconnected.
11.Checkthesparkplugwireconnection.
1.Engineloadisexcessive1.Reducethegroundspeed.
2.Aircleanerisdirty.
2.Cleanorreplacetheaircleanerelement.
3.Oillevelinthecrankcaseislow .
3.Addoiltothecrankcase.
4.Coolingnsandairpassagesforthe
engineareplugged.
4.Removetheobstructionsfromthecooling
nsandairpassages.
5.Ventholeinthefuelcapisplugged.
5.Cleanorreplacethefuelcap.
6.Dirtinfuellter.6.Replacethefuellter.
Enginelosespower
7.Dirt,water,orstalefuelisinthefuel
system.
7.ContactanAuthorizedServiceDealer.
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