Toro 30446 - Pivoting the Front Cutting Unit down; Adjusting the Cutting Unit Pitch

Figure80
1.Cable
2.Pin
PivotingtheFrontCuttingUnit
Down
1.Withthehelpofanotherperson,holdthecutting
unitupright,removethehairpincottersecuringthe
cableend,andremovethecablefromthepin.
2.Pivot(tilt)thecuttingunitdownward.
3.Storethecableundertheoperator’splatform.
4.Sitontheseat,starttheengine,andlowerthecutting
unituntilitisslightlyoffoftheoor.
5.Securetheheight-of-cutchainstotherearofthe
cuttingunit.
6.Pivottransportlatchupwardintopositionandsecure
withclevispinandcotterpin.
AdjustingtheCuttingUnit
Pitch
MeasuringtheCuttingUnitPitch
Cuttingunitpitchisthedifferenceinheight-of-cutfrom
thefrontofthebladeplanetothebackoftheblade
plane.Tororecommendsabladepitchof1/4inch(6
mm).Thatisthebackofthebladeplaneis1/4inch(6
mm)higherthanthefront.
1.Positionthemachineonalevelsurfaceontheshop
oor.
2.Setthecuttingunittothedesiredheight-of-cut.
3.Rotate1bladesothatitpointsstraightforward.
4.Usingashortruler,measurefromtheoortothe
fronttipoftheblade.Rotatethebladetiptotherear
andmeasurefromtheoortothetipoftheblade.
5.Subtractthefrontdimensionfromtherear
dimensiontocalculatethebladepitch.
AdjustingtheFrontCuttingUnit
1.Loosenthejamnutsonthetoporbottomofthe
height-of-cutchainU-bolt(Figure81).
2.Adjusttheothersetofnutstoraiseorlowertherear
ofthecuttingunitandattainthecorrectcuttingunit
pitch.
3.Tightenthejamnuts.
Figure81
1.Height-of-cutchain
2.U-bolt
AdjustingtheSideCuttingUnits
ServiceInterval:Every800hours
1.Removethetensioningcapfromthespindle
shaftandslidethespindleoutofthecastorarm
(Figure82).Repositiontheshims,asrequired,to
raiseorlowerthecastorwheeluntilthecuttingunit
hasthecorrectpitch.
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