Toro 74901 - Servicing the Cutting Blades

Note:Loosenortightenthesinglepointadjustment
boltenoughtomovetheheight-of-cutplate
mountingboltsatleast1/3thelengthoftheavailable
travelintheirslots.Thiswillregainsomeupand
downadjustmentoneachofthefourdecklinks.
Figure91
1.Singlepointadjustmentbolt
14.Tightenthetwoboltsatthebottomoftheheightof
cutplate(Figure90).Torqueto27-33ft-lb(37-45
N-m).
Note:Inmostconditions,thebackbladetipshould
beadjusted1/4inch(6.4mm)higherthanthefront.
15.Onbothsidesofthedeck,measurefromthelevel
surfacetothebacktipoftheblade(PostionB).The
measurementshouldread31/4inches(8.3cm)
(
Figure88).
16.Finetunethescrewadjusterbyturningittoget
3–1/4inches(8.3mm)height(
Figure89).
Toincreasetheheight,turntheadjustmentnut
clockwise;todecrease,turncounterclockwise.
17.Measureuntilallfoursidesarethecorrectheight.
Tightenallthenutsonthedeckliftarmassemblies.
18.Lowerdischargechute.
ServicingtheCuttingBlades
Maintainsharpbladesthroughoutthecuttingseason
becausesharpbladescutcleanlywithouttearingor
shreddingthegrassblades.Tearingandshreddingturns
grassbrownattheedges,whichslowsgrowthand
increasesthechanceofdisease.
Checkthecutterbladesdailyforsharpness,andforany
wearordamage.Filedownanynicksandsharpenthe
bladesasnecessary.Ifabladeisdamagedorworn,
replaceitimmediatelywithagenuineTororeplacement
blade.Forconvenientsharpeningandreplacement,you
maywanttokeepextrabladesonhand.
DANGER
Awornordamagedbladecanbreak,andapiece
ofthebladecouldbethrownintotheoperator's
orbystander'sarea,resultinginseriouspersonal
injuryordeath.
•Inspectthebladeperiodicallyforwearor
damage.
•Replaceawornordamagedblade.
BeforeInspectingorServicingthe
Blades
Parkthemachineonalevelsurface,disengagetheblade
controlswitch(PTO),andsettheparkingbrake.Turn
theignitionkeytoOff.Removethekey.
InspectingtheBlades
ServiceInterval:Beforeeachuseordaily
1.Inspectthecuttingedges(Figure92).Iftheedges
arenotsharporhavenicks,removeandsharpenthe
blades.RefertoSharpeningtheBlades.
2.Inspecttheblades,especiallythecurvedarea
(Figure92).Ifyounoticeanydamage,wear,oraslot
forminginthisarea(
Figure92),immediatelyinstalla
newblade.
Figure92
1.CuttingEdge3.Wear/slotForming
2.CurvedArea4.Crack
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