Toro 31598 - Correcting the Cutting Unit Mismatch

wearsdown,thequality-of-cutwilldegradesomewhat,
althoughthecuttingedgesaresharp.Thecuttingedge
oftheblademustbesharpsothatthegrassiscutrather
thantorn.Adullcuttingedgeisevidentwhenthetips
ofthegrassappearbrownandshredded.Sharpenthe
cuttingedgestocorrectthiscondition.
1.Positionthemachineonalevelsurface.Raisethe
cuttingunit,engagetheparkingbrake,putthe
tractionpedalinneutral,makesurethePTOswitch
isintheOffposition,stoptheengine,andremove
theignitionkey.
2.Examinethecuttingendsofthebladecarefully,
especiallywheretheatandcurvedpartsofthe
blademeet(
Figure101).Sincesandandabrasive
materialcanwearawaythemetalthatconnects
theatandcurvedpartsoftheblade,checkthe
bladebeforeusingthemower.Ifwearisnoticed
(
Figure101),replacetheblade.
Figure101
1.CuttingEdge3.Wear/slotForming
2.CurvedArea4.Crack
3.Examinethecuttingedgesofalloftheblades.
Sharpenthecuttingedgesiftheyaredullornicked.
Sharpenonlythetopofthecuttingedgeand
maintaintheoriginalcuttingangletomakesure
ofsharpness(
Figure102).Thebladewillremain
balancedifthesameamountofmetalisremoved
frombothcuttingedges.
DANGER
Ifthebladeisallowedtowear,aslotwillform
betweenthesailandatpartoftheblade
(Figure101).Eventuallyapieceoftheblade
maybreakoffandbethrownfromunderthe
housing,possiblyresultinginseriousinjuryto
youorbystanders.
•Inspectthebladeperiodicallyforwearor
damage.
•Nevertrytostraightenabladethatisbentor
weldabrokenorcrackedblade.
•Replaceawornordamagedblade.
Figure102
1.Sharpenatoriginalangle
Note:Removethebladesandsharpenthemona
grinder.Aftersharpeningthecuttingedges,install
thebladewiththeanti-scalpcupandbladebolt;refer
toRemovingandInstallingtheCutterBlade(s).
CorrectingtheCuttingUnit
Mismatch
Ifthereismismatchbetweentheblades,onasingle
cuttingunit,thegrasswillappearstreakedwhenitiscut.
Thisproblemcanbecorrectedbymakingsurethatthe
bladesarestraight.
1.Usinga3foot(1meter)longcarpenterslevel,nd
alevelsurfaceontheshopoor.
2.Raisetheheight-of-cuttothehighestposition;refer
toAdjustingtheHeight-Of-Cut.
3.Lowerthecuttingunitontotheatsurface.Remove
thecoversfromthetopofthecuttingunit.
4.Rotatethebladesuntiltheendsfaceforwardand
backward.Measurefromtheoortothefronttip
ofthecuttingedge.Recordthisdimension.Then
rotatethesamebladesothattheoppositeendis
forward,andmeasureagain.Thedifferencebetween
thedimensionsmustnotexceed1/8inch(3mm).
Ifthedimensionexceeds1/8inch(3mm),replace
thebladebecauseitisbent.Makesuretomeasure
alloftheblades.
5.Checkthatdeckislevelsidetosideandadjustas
required.
6.Installthebeltcovers.
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