Toro 31335 - Adjusting Cutting Unit Pitch; Using the Side Discharge (Model 31336)

AdjustingtheCuttingUnit
Pitch
Cuttingunitpitchisthedifferenceinheight-of-cutfromthe
frontofthebladeplanetothebackofthebladeplane.Toro
recommendsabladepitchof8mm(5/16inch).Thatisthe
backofthebladeplaneis8mm(5/16inch)higherthanthe
front.
1.Positionthemachineonalevelsurfaceontheshop
oor.
2.Setthecuttingunittothedesiredheight-of-cut.
3.Rotate1bladesothatitpointsstraightforward.
4.Usingashortruler,measurefromtheoortothefront
tipoftheblade.Rotatethebladetiptotherearand
measurefromtheoortothetipoftheblade.
5.Subtractthefrontdimensionfromthereardimension
tocalculatethebladepitch.
6.Adjusttheshims,onthefrontorrearcastorarms,to
attaintherequiredcuttingunitpitch(Figure18).
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G018263
Figure18
1.Tensioningcap
4.CastorWheel
2.Shims
5.Axlemountingholes
3.“C”Shapedspacers
CorrectingaCuttingUnit
Mismatch
Duetodifferencesingrassconditionsandthecounterbalance
settingofthetractionunit,itisadvisedthatgrassbecutand
appearancecheckedbeforeformalcuttingisstarted.
1.Setthecuttingunittothedesiredheightofcut;referto
AdjustingtheHeight-of-Cut(page12).
2.Checkandadjustfrontandreartractortirepressure
to138kPa(20psi).
3.Checkandadjustallcastortirepressuresto345kPa
(50psi).
4.Checkforbentblades;refertoCheckingforaBent
Blade.
5.Cutgrassinatestareatodetermineifallcuttingunits
arecuttingatthesameheight.
6.Ifcuttingunitadjustmentsarestillneeded,ndaat
surfaceusinga2m(6foot)orlongerstraightedge.
7.Toeasemeasuringbladeplane,raisetheheightof
cuttothehighestposition;refertoAdjustingthe
Height-of-Cut(page12).
8.Lowerthecuttingunitontotheatsurface.Remove
thecoversfromthetopofthecuttingunits.
9.Rotatethebladeoneachspindleuntiltheendsface
forwardandbackward.
10.Measurefromtheoortothefronttipofthecutting
edge.
11.Adjusttheshimsonthecastorfork(s)tomatch
theheightofcuttodecal;refertoAdjustingthe
Height-of-Cut(page12).
UsingtheSideDischarge
(Model31336only)
Themowerhasahingedgrassdeectorthatdisperses
clippingstothesideanddowntowardtheturf.
DANGER
Withoutagrassdeector,dischargecover,or
completegrasscatcherassemblymountedin
place,youandothersareexposedtobladecontact
andthrowndebris.Contactwithrotatingmower
blade(s)andthrowndebriswillcauseinjuryor
death.
•Neverremovethegrassdeectorfromthemower
becausethegrassdeectorroutesmaterialdown
towardtheturf.Ifthegrassdeectorisever
damaged,replaceitimmediately.
•Neverputyourhandsorfeetunderthemower.
•Nevertrytoclearthedischargeareaormower
bladesunlessyoumovethepowertakeoff(blade
controlswitch(PTO)totheoffposition,rotate
theignitionkeytooffandremovethekey.
•Makesurethegrassdeectorisinthedown
position.
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