Toro 30447N - Mower Maintenance; Pivoting (Tilting) the Front Cutting Unit Upright; Pivoting the Front Cutting Unit down; Adjusting the Cutting Unit Pitch

MowerMaintenance
Pivoting(Tilting)theFront
CuttingUnitUpright
Note:Althoughnotneededfornormalmaintenance
procedures,thefrontcuttingunitcanbepivoted(tilted)toan
uprightposition.Shouldyoudesiretotiltthecuttingunit,
proceedasfollows:
1.Raisethecenterandwingcuttingunitsslightlyoffof
theoor,settheparkingbrake,andstoptheengine.
Removetheignitionkey.
2.Removethehairpincottersecuringdamperstolift
arms(
Figure77).Pivotdampertowarddeckhousing.
Figure77
1.Damper2.Hairpincotter
3.Removethehairpincotterandclevispinsecuringthe
height-of-cutchainstotherearofthecuttingunit
(Figure78).
Figure78
1.Height-of-cutchain
2.U-bolt
4.Starttheengineandslowlyraisethecentercuttingunit.
5.Slowlyraiseeachwingcuttinguntilthecenterofgravity
shiftsandthedeckstartstorotateintotheupright
position.Stoptheengineandremovetheignitionkey.
PivotingtheFrontCuttingUnit
Down
1.Slowlylowerwingcuttingunitsuntilthecenterof
gravityshiftsandthecentercuttingunitrotates
downward.
2.Sitontheseat,starttheengine,andlowerthecenter
cuttingunituntilitisslightlyoffoftheoor.
3.Securetheheight-of-cutchainstotherearofthe
cuttingunit.
4.Pivotdampersupwardintopositionandsecurewith
clevispinandcotterpin.
AdjustingtheCuttingUnit
Pitch
MeasuringtheCuttingUnitPitch
Cuttingunitpitchisthedifferenceinheight-of-cutfromthe
frontofthebladeplanetothebackofthebladeplane.Toro
recommendsabladepitchof1/4inch(6mm).Thatisthe
backofthebladeplaneis1/4inch(6mm)higherthanthe
front.
1.Positionthemachineonalevelsurfaceontheshop
oor.
2.Setthecuttingunittothedesiredheight-of-cut.
3.Rotate1bladesothatitpointsstraightforward.
4.Usingashortruler,measurefromtheoortothefront
tipoftheblade.Rotatethebladetiptotherearand
measurefromtheoortothetipoftheblade.
5.Subtractthefrontdimensionfromthereardimension
tocalculatethebladepitch.
AdjustingtheFrontCuttingUnit
1.Loosenthejamnutsonthetoporbottomofthe
height-of-cutchainU-bolt(Figure79).
2.Adjusttheothersetofnutstoraiseorlowertherearof
thecuttingunitandattainthecorrectcuttingunitpitch.
3.Tightenthejamnuts.
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