Toro Groundsmaster
3500-D - Blade Inspection and Sharpening; Inspecting and Sharpening Blades

Important:Thecurvedpartoftheblade
mustbepointingtowardtheinsideofthe
cuttingunittoensurepropercutting.
Note:Afterstrikingaforeignobject,torqueall
spindle-pulleynutsto115to149N∙m(85to110
ft-lb).
InspectingandSharpeningthe
Blade
Note:Checkthebladebeforeusingthemachine.
Sandandabrasivematerialcanwearawaythemetal
thatconnectstheatandcurvedpartsoftheblade.If
younoticewear,replacetheblade;refertoInspecting
andSharpeningtheBlade(page60).
1.Performthepre-maintenanceprocedure;refer
toPreparingtheMachineforMaintenance(page
38).
2.Blockthecuttingunittopreventitfromfalling
accidentally.
3.Examinethecuttingendsofthebladecarefully,
especiallywheretheatandcurvedpartsofthe
blademeet(Figure75).
g031648
Figure75
1.Cuttingedge3.Damagedarea(wear,slot,
orcrack)
2.Sail
4.Inspectthecuttingedgesofalltheblades.
Sharpenthecuttingedgesiftheyaredullor
nicked,sharpenonlythetopofthecuttingedge,
andmaintaintheoriginalcuttingangletoensure
sharpness(Figure76).
Note:Thebladeremainsbalancedifthesame
amountofmetalisremovedfrombothcutting
edges.
g006926
Figure76
1.Sharpenthebladeatthisangleonly.
5.Laythebladeonalevelsurfaceandcheckits
endstoensurethatthebladeisstraightand
parallel.
Note:Positiontheendsofthebladeslightly
lowerthanthecenter,andthecuttingedgelower
thantheheeloftheblade.Thisbladeproduces
agoodqualityofcutandrequiresminimalpower
fromtheengine.Bycontrastabladethatis
higherattheendsthanthecenter,orifcutting
edgeishigherthantheheel,thebladeisbentor
warpedandmustbereplaced.
g276373
Figure77
1.Cuttingedge
2.Heel
Note:Thebladeendsmustbeslightlylower
thanthecenter,andthecuttingedgemust
belowerthantheheeloftheblade.These
characteristicsproduceagoodqualityofcutand
requirelesspowerfromtheengine.
Note:Ifthebladeendsarehigherthan
thecenter,orifthebladecuttingedgesare
higherthantheheel,replacetheblade.These
characteristicsindicatethatthebladeisbentor
warped.
6.Usetheanti-scalpcupandbladebolttoinstall
thebladewiththesailfacingtowardthecutting
unit.
60