Toro 74143 - Removing the Blades

RemovingtheBlades
Bladesmustbereplacedifasolidobjectishit,ifthe
bladeisoutofbalance,orifthebladeisbent.Toensure
optimumperformanceandcontinuedsafetyconformance
ofthemachine,usegenuineTororeplacementblades.
Replacementbladesmadebyothermanufacturersmayresult
innonconformancewithsafetystandards.
1.Holdthebladeendusingaragorathicklypadded
glove.
2.Removethebladebolt,thecurvedwasher,andthe
bladefromthespindleshaft(Figure79).
Figure79
1.Sailareaoftheblade3.Curvedwasher
2.Blade4.Bladebolt
SharpeningtheBlades
1.Usealetosharpenthecuttingedgeatbothendsof
theblade(Figure80).
Note:Maintaintheoriginalangle.
Note:Thebladeretainsbalanceifthesameamount
ofmaterialisremovedfrombothcuttingedges.
Figure80
1.Sharpenattheoriginalangle
2.Checkthebalanceofthebladebyputtingitonablade
balancer(Figure81).
Note:Ifthebladestaysinahorizontalposition,the
bladeisbalancedandcanbeused.
Figure81
1.Blade2.Balancer
3.Ifthebladeisnotbalanced,lesomemetalofftheend
ofthesailareaonly(Figure79).
4.Repeatthisprocedureuntilthebladeisbalanced.
InstallingtheBlades
1.Installthebladeontothespindleshaft(Figure82).
Important:Thecurvedpartoftheblademustbe
pointingupwardtowardtheinsideofthemowerto
ensurepropercutting.
2.Installthespringdiskandbladebolt(Figure82).
Note:Thespring-diskconemustbeinstalledtoward
thebolthead(Figure82).
3.Torquethebladeboltto115to150N-m(85to
110ft-lb).
Figure82
1.Sailareaoftheblade3.Springdisk
2.Blade4.Bladebolt
53