Operator's Manual
Troubleshooting
Problem
PossibleCauseCorrectiveAction
1.Thebatteryisdischarged.
1.Chargethebatteryorreplaceit.
2.Theelectricalconnectionsarecorroded
orloose.
2.Checktheelectricalconnectionsfor
goodcontact.
Thestarterdoesnotcrank(models22973
and22974).
3.Therelayorswitchisdamaged.
3.ContactyourAuthorizedService
Dealer.
1.Thefueltankisempty.1.Fillthefueltankwithgasoline.
2.Thefuelshutoffvalveisclosed.2.Openthefuelshutoffvalve.
3.Thecontrolsarenotinneutral.3.Movethecontrolstoneutral.
4.Thechokeisnoton.
4.Movethechokeleverfullyforward.
5.Theaircleanerisdirty.
5.Cleanorreplacetheaircleaner
elements.
6.Thesparkplugwireislooseor
disconnected.
6.Installthewireonthesparkplug.
7.Thesparkplugispitted,fouled,orthe
gapisincorrect.
7.Installanew,correctlygappedspark
plug.
Theenginewillnotstart,startshard,or
failstokeeprunning.
8.Dirt,water,orstalefuelisinfuel
system.
8.ContactyourAuthorizedService
Dealer.
1.Theengineloadisexcessive.1.Reducegroundspeed.
2.Theaircleanerisdirty.
2.Cleanorreplacetheaircleaner
elements.
3.Theoillevelincrankcaseislow.
3.Checkandaddoiltothecrankcase.
4.Thecoolingnsandairpassages
undertheengineblowerhousingare
plugged.
4.Removeanyobstructionsfromthe
coolingnsandairpassages.
5.Thesparkplugispitted,fouled,orthe
gapisincorrect.
5.Installanew,correctlygappedspark
plug.
Enginelosespower.
6.Dirt,water,orstalefuelisinfuel
system.
6.ContactyourAuthorizedService
Dealer.
1.Theengineloadisexcessive.1.Reducegroundspeed.
2.Theoillevelincrankcaseislow.
2.Checkandaddoiltothecrankcase.
Theengineoverheats.
3.Thecoolingnsandairpassages
undertheengineblowerhousingare
plugged.
3.Removeanyobstructionsfromthe
coolingnsandairpassages.
Abnormalvibration.1.Theenginemountingboltsareloose.1.Tightentheenginemountingbolts.
1.Theparkingbrakeison.1.Releasetheparkingbrake.
2.Thehydraulicuidlevelislow.2.Checkandaddhydraulicuid.
3.Thetowvalvesareopen.
3.Closethetowvalves.
Themachinedoesnotdrive.
4.Thehydraulicsystemisdamaged.
4.ContactyourAuthorizedService
Dealer.
1.Sandordebrishasbuiltupinatooth
rootofthedrivesprocket.
1.Runthechainbackwardsandthen
reducethechaintension.
2.Thediggingchainistootight.2.Adjustthediggingchaintension.
3.Thetrencherboomendbearinghas
failed.
3.ContactyourAuthorizedService
Dealer.
4.Thetrencherdrivesystemisdamaged.
4.ContactyourAuthorizedService
Dealer.
Thechaindoesnotturn
5.Thehydraulicsystemisobstructed,
contaminated,ordamaged.
5.ContactyourAuthorizedService
Dealer.
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