Toro 74312 - Page 57

SharpeningtheBlades
1.Usealetosharpenthecuttingedgeatboth
endsoftheblade(Figure65).
Note:Maintaintheoriginalangle.
Note:Thebladeretainsitsbalanceifthesame
amountofmaterialisremovedfrombothcutting
edges.
g000552
Figure65
1.Sharpenatoriginalangle.
2.Checkthebalanceofthebladebyputtingitona
bladebalancer(Figure66).
Note:Ifthebladestaysinahorizontalposition,
thebladeisbalancedandcanbeused.
Note:Ifthebladeisnotbalanced,lesome
metalofftheendofthesailareaonly(Figure65).
g000553
Figure66
1.Blade2.Balancer
3.Repeatthisprocedureuntilthebladeis
balanced.
InstallingtheBlades
Note:Determinetheleftandrightsidesofthe
machinefromthenormaloperatingposition.
Note:Ensurethatyouinstallthered-coloredblade
ontherightside.
1.Installthebladedrivertothenewbladeswith
theshearboltsandlocknuts(Figure64).
2.Torquetheshearboltsto922to1130N∙m(80
to100in-lb).
Note:Aligntheblade-driveratswiththeats
ontheshaftwheninstallingthebladeonthe
mowerdeck.
3.Installtheblade,washer,andbladebolttothe
spindleshaft(Figure64).
4.Torquethebladeboltto115to149N∙m(85to
110ft-lb).
5.Lowerthemowerdecktotheoperatingposition.
RefertoLoweringtheMowerDecktothe
OperatingPosition(page18).
WARNING
Operatingamowerdeckwithlooseor
weakenedbladeboltscanbedangerous.
Alooseorweakenedbladeboltcould
allowabladerotatingatahighspeed
tocomeoutfromunderthemower
deck,causingseriousinjuryorproperty
damage.
•Replacethebladeboltafterstrikinga
foreignobject.
•UseonlygenuineTororeplacement
parts.
•Donotlubricatethethreadsofthe
boltorspindlebeforeassembly.
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