Figure87
1.CuttingEdge3.Wear/slotForming
2.CurvedArea4.Crack
3.Examinethecuttingedgesofalloftheblades.Sharpen
thecuttingedgesiftheyaredullornicked.Sharpen
onlythetopofthecuttingedgeandmaintainthe
originalcuttingangletomakesureofsharpness
(Figure88).Thebladewillremainbalancedifthesame
amountofmetalisremovedfrombothcuttingedges.
DANGER
Ifthebladeisallowedtowear,aslotwillform
betweenthesailandatpartoftheblade
(
Figure87).Eventuallyapieceoftheblade
maybreakoffandbethrownfromunderthe
housing,possiblyresultinginseriousinjury
toyouorbystanders.
•Inspectthebladeperiodicallyforwearor
damage.
•Nevertrytostraightenabladethatisbent
orweldabrokenorcrackedblade.
•Replaceawornordamagedblade.
Figure88
1.Sharpenatoriginalangle
Note:Removethebladesandsharpenthemona
grinder.Aftersharpeningthecuttingedges,installthe
bladewiththeanti-scalpcupandbladebolt;referto
RemovingandInstallingtheCutterBlade(s).
CorrectingCuttingUnit
Mismatch
Ifthereismismatchbetweentheblades,onasinglecutting
unit,thegrasswillappearstreakedwhenitiscut.This
problemcanbecorrectedbymakingsurethatthebladesare
straightandallofthebladesarecuttingonthesameplane.
1.Usinga3foot(1meter)longcarpenterslevel,nda
levelsurfaceontheshopoor.
2.Raisetheheight-of-cuttothehighestposition;referto
AdjustingtheHeight-Of-Cut.
3.Lowerthecuttingunitontotheatsurface.Remove
thecoversfromthetopofthecuttingunit.
4.Loosentheangenutsecuringtheidlerpulleyto
releasethebelttension.
5.Rotatethebladesuntiltheendsfaceforwardand
backward.Measurefromtheoortothefronttipof
thecuttingedge.Rememberthisdimension.Then
rotatethesamebladesothattheoppositeendis
forward,andmeasureagain.Thedifferencebetween
thedimensionsmustnotexceed1/8inch(3mm).If
thedimensionexceeds1/8inch(3mm),replacethe
bladebecauseitisbent.Makesuretomeasureallof
theblades.
53