Toro 30446 - Correcting Cutting Unit Mismatch

Ifthebladeisallowedtowear,aslotwillform
betweenthesailandatpartoftheblade.
Eventuallyapieceoftheblademaybreakoff
andbethrownfromunderthehousing,possibly
resultinginseriousinjurytoyouorbystanders.
•Inspectthebladeperiodicallyforwearor
damage.
•Nevertrytostraightenabladethatisbent
orweldabrokenorcrackedblade.
•Replaceawornordamagedblade.
Figure89
1.Sharpenatoriginalangle
Note:Removethebladesandsharpenthemona
grinder.Aftersharpeningthecuttingedges,install
thebladewiththeanti-scalpcupandbladebolt;refer
toRemovingandInstallingtheCutterBlade(s).
CorrectingCuttingUnit
Mismatch
Ifthereismismatchbetweentheblades,onasingle
cuttingunit,thegrasswillappearstreakedwhenitiscut.
Thisproblemcanbecorrectedbymakingsurethatthe
bladesarestraightandallofthebladesarecuttingon
thesameplane.
1.Usinga3foot(1meter)longcarpenterslevel,nd
alevelsurfaceontheshopoor.
2.Raisetheheight-of-cuttothehighestposition;refer
toAdjustingtheHeight-Of-Cut.
3.Lowerthecuttingunitontotheatsurface.Remove
thecoversfromthetopofthecuttingunit.
4.Loosentheangenutsecuringtheidlerpulleyto
releasethebelttension.
5.Rotatethebladesuntiltheendsfaceforwardand
backward.Measurefromtheoortothefronttipof
thecuttingedge.Rememberthisdimension.Then
rotatethesamebladesothattheoppositeendis
forward,andmeasureagain.Thedifferencebetween
thedimensionsmustnotexceed1/8inch(3mm).
Ifthedimensionexceeds1/8inch(3mm),replace
thebladebecauseitisbent.Makesuretomeasure
alloftheblades.
6.Comparethemeasurementsoftheouterbladeswith
thecenterblade.Thecenterblademustnotbemore
than3/8inch(10mm)lowerthantheouterblades.
Ifthecenterbladeismorethan3/8inch(10mm)
lowerthantheouterblades,proceedtostep7and
addshimsbetweenthespindlehousingandthe
bottomofthecuttingunit.
7.Removethebolts,atwashers,lockwashers,and
nutsfromtheouterspindleintheareawhere
theshimsmustbeadded.Toraiseorlowerthe
blade,addashim,PartNo.3256-24,betweenthe
spindlehousingandthebottomofthecuttingunit.
Continuetocheckthealignmentofthebladesand
addshimsuntilthetipsofthebladesarewithinthe
requireddimension.
Important:Donotusemorethanthreeshimsat
anyoneholelocation.Usedecreasingnumbers
ofshimsinadjacentholesifmorethanoneshim
isaddedtoanyoneholelocation.
8.Adjusttheidlerpulleyandinstallthebeltcovers.
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