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.Theairlterisclogged.2.Cleanorreplacetheairlter.
3.Thefuellineisclogged.3.Cleanthesedimentcup.
4.Thereiswaterorcontaminantsinthe
fuel.
4.Drainandllthetankwithfreshfuel.
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
debrisaroundtheywheel,onthe
outerdiameterofthewheel,upperlid
ofthegrinder,andinsidethehousing
cover.
2.Thebeltislooseordamaged.
2.Checkthedrivebelt.
Theywheeldoesnotrotate.
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
theywheel.
2.Loosentheblademountingscrews,
resetthebladesandtightenthe
screws.
Themachinehasexcessivevibration.
3.Gapbetweenthebladesandcutter
blockistoogreat.
3.Adjusttheywheelpositioninthe
housingtoattaina1/8inch(3mm)
clearancebetweenthebladeand
cutterblock.
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