Toro 30716 - Checking and Correcting Mismatch of Blades

originalcuttingangletoensuresharpness(Figure29).
Thebladewillremainbalancedifthesameamountof
metalisremovedfrombothcuttingedges.
Figure29
1.Sharpenatoriginalangle
4.Tocheckthebladeforbeingstraightandparallel,lay
thebladeonalevelsurfaceandchecktheends.The
endsoftheblademustbeslightlylowerthanthecenter,
andthecuttingedgemustbelowerthantheheelofthe
blade.Thisbladewillproduceagoodqualityofcutand
requireminimalpowerfromtheengine.Bycontrasta
bladethatishigherattheendsthanthecenter,orifthe
cuttingedgeishigherthantheheel,thebladeisbentor
warpedandmustbereplaced.
5.Installtheblade(s).
CheckingandCorrecting
MismatchofBlades
Ifthereismismatchbetweentheblades,thegrasswillappear
streakedwhenitiscut.Thisproblemcanbecorrectedby
makingsurethatthebladesarestraightandalloftheblades
arecuttingonthesameplane.
1.Usinga1meter(3foot)longcarpenterslevel,nda
levelsurfaceontheshopoor.
2.Raisetheheight-of-cuttothehighestposition;referto
AdjustingtheHeight-of-Cut.
3.Lowerthecuttingunitontotheatsurface.Remove
thecoversfromthetopofthecuttingunit.
4.Unhookthespringfromtheidlerarmbracketto
releasethebelttension.
5.Rotatethebladesuntiltheendsfaceforwardand
backward.Measurefromtheoortothefronttipof
thecuttingedge.Rememberthisdimension.Then
rotatethesamebladesothattheoppositeendis
forward,andmeasureagain.Thedifferencebetween
thedimensionsmustnotexceed3mm(1/8inch).If
thedimensionexceeds3mm(1/8inch),replacethe
bladebecauseitisbent.Makesuretomeasureallof
theblades.
6.Comparethemeasurementsoftheouterbladeswith
thecenterblade.Thecenterblademustnotbemore
than10mm(3/8inch)lowerthantheouterblades.If
thecenterbladeismorethan10mm(3/8inch)lower
thantheouterblades,proceedtostep
7andaddshims
betweenthespindlehousingandthebottomofthe
cuttingunit.
7.Removethebolts,atwashers,lockwashers,andnuts
fromtheouterspindleintheareawheretheshims
mustbeadded.Toraiseorlowertheblade,addashim,
PartNo.3256-24,betweenthespindlehousingand
thebottomofthecuttingunit.Continuetocheckthe
alignmentofthebladesandaddshimsuntilthetipsof
thebladesarewithintherequireddimension.
Important:Donotusemorethanthreeshimsat
anyoneholelocation.Usedecreasingnumbersof
shimsinadjacentholesifmorethanoneshimis
addedtoanyoneholelocation.
8.Hookthespringontotheidlerarmbracket.
9.Installthebeltcovers.
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