Toro Reelmaster 5510 Series - Checking and Adjusting the Cutting Unit

Bedknife/Height-of-CutChart(cont'd.)
Bedknife
PartNo.
BedknifeLipHeight*HeightofCut
5.6mm6.4–12.7mm
EdgeMax®LowHOC
(ProductionforModel03693)
127-7132
(0.220inch)(0.250to0.500inch)
5.6mm(0.220inch)
6.4–12.7mm
ExtendedLowHOCEdgeMax®
(Optional)
119-4280
(0.270inch)(0.250to0.500inch)
6.9mm9.5–38.1mm
EdgeMax®(Productionfor
Models03696and03697)
108-9095
(0.270inch)(0.375to1.50inches)
6.9mm9.5–50.8mm
Standard(Optional)
108-9096
(0.270inch)(0.375to2.0inches)
9.3mm6.4–50.8mm
HeavyDuty(Optional)
110-4074
(0.370inch)(0.500to2.0inches)
*WarmseasongrassesmayrequirethelowHOCbedknifefor12.7mm(0.500inches)andbelow.
g006510
Figure21
1.Bedknifelipheight*
CheckingandAdjustingthe
CuttingUnit
Thedualknobbedknife-to-reeladjustmentsystemin
thiscuttingunitsimpliestheadjustmentprocedure.
Thepreciseadjustmentpossiblewiththedual
knob/bedbardesigngivesthenecessarycontrol
toprovideacontinualself-sharpeningaction-thus
maintainingsharpcuttingedges,ensuringgood
quality-of-cutandgreatlyreducingtheneedforroutine
backlapping.
Priortomowingeachday,orasrequired,checkeach
cuttingunittoverifyproperbedknife-to-reelcontact.
Performthisprocedureeventhoughthequalityof
cutisacceptable.
1.Lowerthecuttingunitsontoahardsurface,shut
offtheengine,andremovetheignitionkey.
2.Slowlyrotatethereelinareversedirection,
listeningforreel-to-bedknifecontact.Ifno
contactisevident,turnthebedknifeadjusting
knobsclockwise,1clickatatime,untillight
contactisfeltandheard.
Note:Thereelmustcut1sheetofpaper,when
insertedatarightangletothebedknife,atboth
endsandthecenterofthereel.
Note:Theadjustmentknobshavedetentes
correspondingto0.022mm(0.0009inch)
bedknifemovementforeachindexedposition.
3.Ifexcessivecontact/reeldragisevidentbacklap,
refacethefrontofthebedknife,orgrindthe
cuttingunittoachievethesharpedgesneeded
forprecisioncutting(RefertotheToroManual
forSharpeningReelandRotaryMowers,Form
No.09168SL).
Important:Lightcontactispreferredat
alltimes.Iflightcontactisnotmaintained,
thebedknife/reeledgeswillnotsufciently
self-sharpenanddullcuttingedgeswill
resultafteraperiodofoperation.Ifexcessive
contactismaintained,bedknife/reelwearwill
beaccelerated,unevenwearcanresult,and
qualityofcutmaybeadverselyaffected.
Note:Asthereelbladescontinuetorunagainst
thebedknife,aslightburrappearsonthefront
cuttingedgesurfacealongthefulllengthofthe
bedknife.Youcanremoveburrsandimprove
cuttingbyoccasionallyrunningaleacrossthe
frontedge.
Afterextendedrunning,aridgeeventually
developsatbothendsofthebedknife.Round
offthesenotchesorlethemushwiththe
cuttingedgeofthebedknifetoensuresmooth
operation.
Note:Overtime,thechamfer(Figure22)
requiresgrinding,asitisdesignedtolastonly
40%ofthebedknifelife.
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