Toro Groundsmaster 3280-D - Specifications

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AdjustingtheWeight
TransferoftheMowerDeck
NoPartsRequired
Procedure
Youcanchangethehydraulicpressureusedto
transfertheweightofthemowerdecktothetraction
unitbyadjustingweight-transfervalveofthelift
manifold.Forbestcuttingperformance,adjustthe
weight-transfervalvesothatanybouncingmotionof
themowerdeckisminimaloveruneventurf,butalso
adjusttheweight-transfervalvesothatthemower
deckdoesnotrideheavilyoveratterrain.
•Toimprovethecontour-trackingperformance
ofthecuttingdeckasyouoperatethemachine
overuneventurf,decreasetheweight-transfer
(hydraulic)pressureattheliftmanifold.
Note:Ifthecastersofthemowerdeckoatabove
theground,thehydraulicpressureoftheweight
transfervalveissetattoohigh.
•Whenyouarecuttingatturf,whenthecutting
deckisscalpingthegrass,orifthequalityof
cutisunevenfromsidetoside,increasethe
weight-transferpressureattheliftmanifold.
Note:Increasingweight-transferpressurealso
transferstheweightfromthecastersofthecutting
decktothewheelsofthetractionunit,thereby
improvingthetractionofthetractionunit.
Adjusttheweight-transferpressureasfollows:
1.Parkthemachineonalevelsurface,engage
theparkingbrake,lowerthecuttingdeck,shut
offtheengine,andremovethekeyfromthekey
switch.
2.Locatetheliftmanifoldfromunderthemachine,
inboardtherightframechannel,behindthefront
axle(Figure12).
g034107
Figure12
3.Connectapressuregaugetothetestportatthe
rearoftheliftmanifold(Figure13).
g035498
Figure13
1.Liftmanifold3.Removethecapfromthe
weight-transferspool
2.Testport
4.Atthefrontoftheliftmanifold,removethecap
fromtheweight-transferspool(Figure13).
5.Loosenthejamnutatthebottomofthe
weight-transferspool(Figure13).
6.StarttheengineandsetthethrottletoHIGHIDLE.
7.Useahex-socketwrenchtoadjusttheliftvalve
oftheweight-transferspooluntilthegauge
indicatesthedesiredpressure;refertothechart
thatfollowsfortherecommendedpressure
settingforthecuttingdeck.
•Rotatetheadjustingscrewclockwiseto
increasethepressure.
•Rotatetheadjustingscrewcounterclockwise
todecreasethepressure.
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