Toro 74950 - Servicing the Cutting Blades; Inspecting the Blades

Figure90
1.Boltsatthebottomoftheheight-of-cutplate
13.Ifthedeckistoolow ,tightenthe
single-point-adjustmentboltbyrotatingitclockwise.If
thedeckistoohigh,loosenthesingle-point-adjustment
boltbyrotatingitcounterclockwise(Figure91).
Note:Loosenortightenthesingle-point-adjustment
boltenoughtomovetheheight-of-cutplate-mounting
boltsatleast1/3thelengthoftheavailabletravel
intheirslots.Thiswillregainsomeup-and-down
adjustmentoneachofthe4decklinks.
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Figure91
1.Single-point-adjustmentbolt
14.Torquethe2boltsatthebottomoftheheight-of-cut
plate(Figure90)to37to45N∙m(27to33ft-lb).
Note:Formostconditions,adjustthebackbladetip
6.4mm(1/4inch)higherthanthefront.
15.Onbothsidesofthedeck,measurefromthelevel
surfacetothebacktipoftheblade(PostionB).The
measurementshouldread8.3cm(3-1/4inches);refer
toFigure88.
16.Fine-tunetheadjusterscrewbyturningittoget8.3
mm(3–1/4inches)height(Figure89).
Toincreasetheheight,turntheadjustmentnut
clockwise;todecreasetheheight,turnthenut
counterclockwise.
17.Measureuntilall4sidesarethecorrectheight.Tighten
allthejamnutsonthedeck-liftarmassemblies.
18.Lowerthedischargechute.
ServicingtheCuttingBlades
Maintainsharpbladesthroughoutthecuttingseason,because
sharpbladescutcleanlywithouttearingorshreddingthegrass
blades.Tearingandshreddingturnsgrassbrownattheedges,
whichslowsgrowthandincreasesthechanceofdisease.
Checkthecutterbladesdailyforsharpness,andforany
wearordamage.Filedownanynicksandsharpenthe
bladesasnecessary.Ifabladeisdamagedorworn,replace
itimmediatelywithagenuineTororeplacementblade.For
convenientsharpeningandreplacement,keepextrablades
onhand.
DANGER
Awornordamagedbladecanbreak,andapiece
ofthebladecouldbethrownintotheoperator's
orbystander'sarea,resultinginseriouspersonal
injuryordeath.
•Inspectthebladeperiodicallyforwearor
damage.
•Replaceawornordamagedblade.
BeforeInspectingorServicingthe
Blades
Parkthemachineonalevelsurface,disengagethe
blade-controlswitch(PTO),andsettheparkingbrake.Turn
theignitionkeytoOff.Removethekey.
InspectingtheBlades
ServiceInterval:Beforeeachuseordaily
1.Inspectthecuttingedges(Figure92).Iftheedgesare
notsharporhavenicks,removeandsharpentheblades.
2.Inspecttheblades,especiallythecurvedarea(Figure
92).Ifyounoticeanydamage,wear,oraslotforming
inthisarea(Figure92),immediatelyinstallanewblade.
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