Toro reelmaster 5410 series - Preparing the Reel for Grinding

PreparingtheReelforGrinding(continued)
ThreetypesofcuttingreeldesignsareusedincuttingunitsforReelmaster
machines:scallopedradialreel,taperedradialreel,andtaperedforwardswept
reel.ThedifferenttypesofindividualreelbladesareshowninFigure347.The
radialreeldesignshavebladesthatareplacedinlinewiththecenterofthereel
shaft.Therearofthebladeseitherhaveascallopedrelieforataperedrelief.The
forwardsweptreelhavebladesthathaveaslightforwardslant.Therearofthe
forwardsweptreelbladeshaveataperedrelief.Beforegrindingareel,ensureto
identifythetypeofreeldesigntoensurethatthegrindingiscorrectlydone.
Beforegrindingacuttingreel,ensurethatallthecuttingunitcomponentsare
ingoodcondition.Dependingonthetypeofgrinderused,damagedcutting
unitcomponentscanaffectgrindingresults.Whengrinding,becarefultonot
overheatthecuttingreelblades.Removesmallamountsofmaterialwitheach
passofthegrinder.
Followthereelgrindermanufacturer’sinstructionstogrindthecuttingreelto
Torospecications;refertotheReelGrindingSpecicationsT able(page9–42).
AdditionalreelgrindinginformationcanbefoundinyourCuttingUnitOperator’s
ManualandtheToroGeneralServiceTrainingBook,ReelMowerBasics(Toro
PartNo.09168SL)foundontheServiceReferenceSetavailablefromyour
AuthorizedT oroDistributor.
ReelGrindingSpecicationsTable
5inchDia.Reels7inchDia.Reels
Reeldiameter(new)128.5mm(5.060inches)179.3mm(7.060inches)
Servicelimit-reeldiameter114mm(4.500inches)
for5inchreel
168mm(6.600inches)
for7inchreel
Reelshaftdiameter(outer
diameter)
33.3mm(1.313inches)
Servicelimit-reeldiameter
taper(Figure348)
0.25mm(0.010inch)
Bladelandwidth
1.3to1.8mm(0.050to0.070inch)ServiceLimit:
3mm(0.120in)
Bladereliefangle30°±5°
Reliefgrindthereelbladestotheminimumbladelandwidthifthereelbladeland
widthexceedstheservicelimit.Spingrindthereeltorestoreitscylindricalshape.
Note:Spingrindthereelandestablishthespeciedbladelandwidthafterrelief
grinding.
Aftergrindingthereeland/orbedknife,adjustthecuttingunit;refertotheCutting
UnitOperator'sManual.Checkthereeltobedknifecontactagainaftercutting
two(2)fairways.Duringthisinitialuse,anyburrswillberemovedfromreel
andbedknifewhichmaycreateimproperreeltobedknifeclearanceandthus
acceleratewear.Thispracticeofre-checkingthereeltobedknifecontactafter
grindingwillextendthelongevityofthesharpnessoftheedgeofthereeland
thebedknife.
CuttingUnit:ServiceandRepairs
Page9–42
Reelmaster
®
5410/5510/5610Series
15216SLRevC