Toro 03721 - Adjusting the Turf-Compensation Settings; Checking and Adjusting the Cutting Unit

Bedknife/HeightofCutChart
Bedknife
PartNo.
BedknifeLip
Height*
HeightofCut
LowHOC
(Optional)
120-1641
(27inch)
120-1642
(32inch)
5.6mm
(0.220inch)
6.4to12.7mm
(0.250to0.500
inch)
EdgeMax®
(Optional)
112-8910
(27inch)
112-8956
(32inch)
6.9mm
(0.270inch)
9.5to63.5mm
(0.375to2.50
inches)*
Standard
(Production)
114-9388
(27inch)
114-9389
(32inch)
6.9mm
(0.270inch)
9.5to63.5mm
(0.375to2.50
inches)*
HeavyDuty
(Optional)
114-9390
(27inch)
114-9391
(32inch)
9.3mm
(0.370inch)
12.7to63.5mm
(0.500to2.50
inches)
Note:*Warm-seasongrassesmayrequiretheLow
HOCbedknifefor12.7mm(0.500inch)andbelow.
g006510
Figure21
1.Bedknifelipheight*
Adjustingthe
Turf-CompensationSettings
Theturf-compensationspringtransferstheweightfromthe
fronttotherearroller.Thishelpstoreduceawavepatternin
theturf,alsoknownasmarcellingorbobbing.
Important:Makethespringadjustmentswiththe
cuttingunitmountedtothetractionunit,pointing
straightaheadandloweredtotheshopoor.
1.Makesurethatthehairpincotterisinstalledintherear
holeinthespringrod(Figure22).
g027169
Figure22
1.Turf-compensationspring3.Springrod
2.Hairpincotter4.Hexnuts
2.Tightenthehexnutsonthefrontendofthespringrod
untilthecompressedlengthofthespringis15.9cm
(6.25inches)(Figure22).
Note:Whenoperatingthemachineonroughterrain,
decreasethespringlengthby12.7mm(1/2inch).
Note:Theturf-compensationsettingwillneedtobe
resetiftheHOCsettingortheaggressiveness-of-cut
settingischanged.
CheckingandAdjustingthe
CuttingUnit
Thedual-knobbedknife-to-reeladjustmentsystem
incorporatedinthiscuttingunitsimpliestheadjustment
procedureneededtodeliveroptimummowingperformance.
Thepreciseadjustmentpossiblewiththedualknob/bedbar
designgivesthenecessarycontroltoprovideacontinual
self-sharpeningaction—thusmaintainingsharpcuttingedges,
ensuringgoodqualityofcut,andgreatlyreducingtheneed
forroutinebacklapping.
Priortomowingeachday,orasrequired,checkeachcutting
unittoverifyproperbedknife-to-reelcontact.Thismust
beperformedregardlessofwhetherthequalityofcutis
acceptable.
1.Lowerthecuttingunitsontoahardsurface,shutoff
theengine,andremovetheignitionkey.
2.Slowlyrotatethereelinareversedirection,listening
forreel-to-bedknifecontact.Ifnocontactisevident,
turnthebedknife-adjustingknobsclockwise,1clickat
atime,untilyoufeelandhearlightcontact.
Note:Thereelmustcutasheetofpaper,when
insertedatarightangletothebedknife,atbothends
andthecenterofthereel.
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