Toro 03661 - Page 13

Figure18
1.BedknifeLipHeight*
CuttingUnitCharacteristics
Thedualknobbedknife-to-reeladjustmentsystem
incorporatedinthiscuttingunitsimpliesthe
adjustmentprocedureneededtodeliveroptimum
mowingperformance.Thepreciseadjustment
possiblewiththedualknob/bedbardesigngivesthe
necessarycontroltoprovideacontinualself-sharpening
action-thusmaintainingsharpcuttingedges,ensuring
goodquality-of-cut,andgreatlyreducingtheneedfor
routinebacklapping.
DailyAdjustmentsofCuttingUnit
Priortomowingeachday,orasrequired,eachcutting
unitmustbecheckedtoverifyproperbedknife-to-reel
contact.Thismustbeperformedeventhough
qualityofcutisacceptable.
1.Lowerthecuttingunitsontoahardsurface,shutoff
theengine,andremovetheignitionkey.
2.Slowlyrotatethereelinareversedirection,
listeningforreel-to-bedknifecontact.Ifnocontact
isevident,turnthebedknifeadjustingknobs
clockwise,oneclickatatime,untillightcontactis
feltandheard.
Note:Thereelmustcutonesheetofpaper,when
insertedatarightangletothebedknife,atboth
endsandthecenterofthereel.
Note:Theadjustmentknobshavedetents
correspondingto0.0009inch(0.023mm)bedknife
movementforeachindexedposition.
3.Ifexcessivecontactisneededtocutpaper,
backlappingorgrindingisrequired.
Important:Lightcontactispreferredatall
times.Iflightcontactisnotmaintained,
thebedknife/reeledgeswillnotsufciently
self-sharpenanddullcuttingedgeswillresult
afteraperiodofoperation.Ifexcessivecontact
ismaintained,bedknife/reelwearwillbe
accelerated,unevenwearcanresult,andquality
ofcutmaybeadverselyaffected.
Note:Asthereelbladescontinuetorunagainst
thebedknife,aslightburrwillappearonthefront
cuttingedgesurfacealongthefulllengthofthe
bedknife.Ifaleisoccasionallyrunacrossthe
frontedgetoremovethisburr,improvedcutting
canbeobtained.
Afterextendedrunning,aridgewilleventually
developatbothendsofthebedknife.Thesenotches
mustberoundedofforledushwiththecutting
edgeofthebedknifetoensuresmoothoperation.
Note:Overtime,thechamfer(
Figure19)willneed
toberegroundasitisonlydesignedtolast40%
ofthebedknifelife.
Figure19
1.Lead-inchamferonrightendofbedknife
Note:Donotmakelead-inchamfertoolargeas
itmaycauseturftufting.
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