Toro 30412 Groundsmaster 4000-D User Manual

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(Figure78).
2.Adjusttheothersetofnutstoraiseorlowertherear
ofthecuttingunitandattainthecorrectcuttingunit
pitch.
3.Tightenthejamnuts.
Figure78
1.Height-of-cutchain
2.U-bolt
AdjustingtheSideCuttingUnits
ServiceInterval:Every800hours
1.Removethetensioningcapfromthespindle
shaftandslidethespindleoutofthecastorarm
(Figure79).Repositiontheshims,asrequired,to
raiseorlowerthecastorwheeluntilthecuttingunit
hasthecorrectpitch.
2.Installthetensioningcap.
Figure79
1.Castorwheel4.Shims
2.Tensioningcap5.Axlemountingholes
3.Spacers
ServicingtheCastorArm
Bushings
Thecastorarmshavebushingspressedintothetopand
bottomofthetubeandaftermanyhoursofoperation,
thebushingswillwear.Tocheckthebushings,movethe
castorforkbackandforthandfromsidetoside.Ifthe
castorspindleislooseinsidethebushings,thebushings
arewornandmustbereplaced.
1.Raisethecuttingunitsothatthewheelsareoffof
theoor.Blockthecuttingunitsothatitcannot
accidentallyfall.
2.Removethetensioningcap,spacer(s),andthrust
washerfromthetopofthecastorspindle.
3.Pullthecastorspindleoutofthemountingtube.
Allowthethrustwasherandspacer(s)toremainon
thebottomofthespindle.
52

Toro 30412 Groundsmaster 4000-D Specifications

General

Brand	Toro
Model	30412 Groundsmaster 4000-D
Category	Lawn Mower
Language	English