Operator's Manual
Troubleshooting
Problem
PossibleCauseCorrectiveAction
1.Thechokeisopen.
1.Closethechokewhenstartingacold
engine.
2.Thefueltankisempty.2.Fillthetankwithfreshfuel.
Theenginewillnotstart.
3.Thesparkplugwireislooseor
disconnected.
3.Checktheelectrodegapandcleanor
replacethesparkplug.
1.Thechokeislefton.1.Openthechoke.
2.Theairlterisclogged.2.Cleanorreplacetheairlter.
3.Thefuellineisclogged.3.Cleanthesedimentcup.
4.Thereiswaterorcontaminantsinthe
fuel.
4.Drainandllthetankwithfreshfuel.
Theenginerunsrough.
5.Thesparkplugsarewornorhave
buildupontheelectrodes.
5.Checktheelectrodegapandcleanor
replacethesparkplug.
1.Theenginespeedistooslowcausing
theclutchtoslip.
1.Runtheengineatfullthrottle.
2.Checkforalooseordamageddrive
belt.
2.Tightenorreplacethedrivebelt.
3.Checkfordullordamagedblades.
3.Replacewithsharpblades.
Chippingactionseemssloworthe
ywheelisstalling.
4.Theclutchshoesareworn.4.Replacetheclutch.
1.Build-upofchipsanddebrisaround
ywheel.
1.Cleanoutthebuild-upofchipsand
debrisaroundtheywheel,ontheouter
diameterofthewheel,upperlidofthe
grinder,andinsidethehousingcover.
2.Thebeltislooseordamaged.
2.Checkthedrivebelt.
Theywheeldoesnotrotate.
3.Theclutchoverheated,isdamaged,or
theshoesareworn.
3.Replacetheclutch.
1.Improperdrivebeltadjustment.
1.Checkthedrivebelttension.
2.Thedrivebeltmaybestretched.2.Replacethedrivebelt.
Drivebeltisworn,burned,orjumpsoffof
pulley.
3.Pulleysareoutofalignment.3.Aligntheengine/clutchpulleywith
ywheel.
1.Checkfordullordamagedblades.
1.Replacewithsharpblades.
2.Bladesmaynotbeproperlyseatedon
theywheel.
2.Loosentheblademountingscrews,
resetthebladesandtightenthescrews.
Themachinehasexcessivevibration.
3.Gapbetweenthebladesandcutter
blockistoogreat.
3.Adjusttheywheelpositioninthe
housingtoattaina1/8inch(3mm)
clearancebetweenthebladeandcutter
block.
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