Operator's Manual

Bedknife/HeightofCutChart
Bedknife
PartNo.
BedknifeLipHeight*HeightofCut
LowHOC(Optional)
110–40845.6mm
(0.220inch)
6.4–12.7mm
(0.250-0.500inch)
PremiumLowHOC(Optional)
125-27715.6mm
(0.220inch)
6.4–12.7mm
(0.250-0.500inch)
ExtendedLowHOC(Optional)
120-16405.6mm
(0.220inch)
6.4–12.7mm
(0.250-0.500inch)
EdgeMax®LowHOC
(ProductionforModel03693)
127–71325.6mm
(0.220inch)
6.4–12.7mm
(0.250-0.500inch)
ExtendedLowHOCEdgeMax®
(Optional)
119-42805.6mm
(0.220inch)
6.4–12.7mm
(0.250-0.500inch)
EdgeMax®(Productionfor
Models03696and03697)
108-90956.9mm
(0.270inch)
9.5–38.1mm
(0.375-1.50inches)
Standard(Optional)
108-90966.9mm
(0.270inch)
9.5–50.8mm
(0.375-2.0inches)
HeavyDuty(Optional)
110-40749.3mm
(0.370inch)
6.4–50.8mm
(0.500-2.0inches)
*WarmseasongrassesmayrequiretheLowHOC
bedknifefor12.7mm(0.500inches)andbelow.
Figure19
1.BedknifeLipHeight*
CheckingandAdjustingtheCutting
Unit
Thedualknobbedknife-to-reeladjustmentsystem
incorporatedinthiscuttingunitsimpliestheadjustment
procedureneededtodeliveroptimummowingperformance.
Thepreciseadjustmentpossiblewiththedualknob/bedbar
designgivesthenecessarycontroltoprovideacontinual
self-sharpeningaction-thusmaintainingsharpcuttingedges,
ensuringgoodquality-of-cut,andgreatlyreducingtheneed
forroutinebacklapping.
Priortomowingeachday,orasrequired,eachcuttingunit
mustbecheckedtoverifyproperbedknife-to-reelcontact.
Thismustbeperformedeventhoughqualityofcutis
acceptable.
1.Lowerthecuttingunitsontoahardsurface,shutoff
theengine,andremovetheignitionkey.
2.Slowlyrotatethereelinareversedirection,listening
forreel-to-bedknifecontact.Ifnocontactisevident,
turnthebedknifeadjustingknobsclockwise,oneclick
atatime,untillightcontactisfeltandheard.
Note:Thereelmustcutonesheetofpaper,when
insertedatarightangletothebedknife,atbothends
andthecenterofthereel.
Note:Theadjustmentknobshavedetentes
correspondingto0.022mm(0.0009inch)bedknife
movementforeachindexedposition.
3.Ifexcessivecontact/reeldragisevidentitwillbeeither
necessarytobacklap,refacethefrontofthebedknife,
orregrindthecuttingunittoachievethesharpedges
neededforprecisioncutting(RefertotheToroManual
forSharpeningReelandRotaryMowers,FormNo.
09168SL).
Important:Lightcontactispreferredatalltimes.
Iflightcontactisnotmaintained,thebedknife/reel
edgeswillnotsufcientlyself-sharpenanddull
cuttingedgeswillresultafteraperiodofoperation.
Ifexcessivecontactismaintained,bedknife/reel
wearwillbeaccelerated,unevenwearcanresult,
andqualityofcutmaybeadverselyaffected.
Note:Asthereelbladescontinuetorunagainstthe
bedknife,aslightburrwillappearonthefrontcutting
edgesurfacealongthefulllengthofthebedknife.You
canremoveburrsandimprovecuttingbyoccasionally
runningaleacrossthefrontedge.
Afterextendedrunning,aridgewilleventuallydevelop
atbothendsofthebedknife.Thesenotchesmustbe
roundedofforledushwiththecuttingedgeofthe
bedknifetoensuresmoothoperation.
Note:Overtime,thechamfer(Figure20)willneedto
beregroundasitisonlydesignedtolast40%ofthe
bedknifelife.
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