Toro 74291 - Servicing the Cutting Blades

8.Adjusttheliftnutsonboththeleftandtheright
sideofthemachinetoachieve1/4to3/8inch
(6to10mm)lowerinfrontatAthanintherearat
B(Figure59).
9.Tightenbothswiveljamnutsagainstthefrontswivel
tolocktheheight.
10.Checktomakesurethereisequaltensiononthe
chainsandadjustagainifneeded.
AdjustingtheCompressionSpring
1.Raisethemowerliftlevertothetransportposition.
2.Checkthedistancebetweenthetwolargewashers,
itneedstobe11-1/8inches(28.2cm)for52inch
mowerdecksand10-1/2inches(26.7cm)for60
inchmowerdecks(Figure61).
Figure61
1.11–1/8inch(28.2cm)
betweenthelargewashers
for52inchmowerdecks
6.Liftnut
2.Frontnut7.Frontsupportarm
3.Springjamnut
8.Largewasher
4.Frontswivel
9.10-1/2inch(26.7cm)
betweenthelargewashers
for60inchmowerdecks
5.Swiveljamnut
3.Adjustthisdistance,bylooseningthespringjam
nutandturningthenutinfrontofeachspring
(Figure61).Turningthenutclockwisewillshorten
thespring;counter-clockwisewilllengthenthe
spring.
4.Lockthenutintopositionbytighteningthespring
jamnut(Figure61).
ServicingtheCuttingBlades
Maintainsharpbladesthroughoutthecuttingseason
becausesharpbladescutcleanlywithouttearingor
shreddingthegrassblades.Tearingandshreddingturns
grassbrownattheedges,whichslowsgrowthand
increasesthechanceofdisease.
Checkthecutterbladesdailyforsharpness,andforany
wearordamage.Filedownanynicksandsharpenthe
bladesasnecessary.Ifabladeisdamagedorworn,
replaceitimmediatelywithagenuineTororeplacement
blade.Forconvenientsharpeningandreplacement,you
maywanttokeepextrabladesonhand.
Awornordamagedbladecanbreak,anda
pieceofthebladecouldbethrownintothe
operator’sorbystander’sarea,resultingin
seriouspersonalinjuryordeath.
•Inspectthebladeperiodicallyforwearor
damage.
•Replaceawornordamagedblade.
BeforeInspectingorServicingthe
Blades
1.Parkthemachineonalevelsurface,disengagethe
bladecontrol(PTO),andsettheparkingbrake.
2.TurntheignitionkeytoOffandremovethekey.
3.Disconnectthesparkplugwire(s)fromthespark
plug(s).
InspectingtheBlades
ServiceInterval:Beforeeachuseordaily
1.Inspectthecuttingedges(Figure62).
Iftheedgesarenotsharporhavenicks,removeand
sharpentheblades.RefertoSharpeningtheBlades.
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