DeterminingtheDistributionPattern
1.Setthespreaderpatterncontroltothemiddleof
itstravel;referto.
2.Taptheimpellercontrolswitchupordownto
adjustthebroadcastingpattern.
Recordthemotor-rotationspeedhere:
%.
3.Drivethemachinetowardthetestsiteatthe
appropriatespeed.
4.Asyouapproachthecenterpan,pullthewide
distributiongranulargatecontroltotheopen
position,anddriveoverthecenterpan.
5.Closethegatecontrol,movemotion-control
levertotheNEUTRALposition,shutoffthe
engine,waitforallmovingpartstostop,remove
key,andengageparkingbrake.
6.Labeleachgraduatedmeasuringcylinderto
correspondwiththedistributionpans(suchas
L2,L1,Center,R1,R2);refertoFigure28and
Figure29.
7.Oneatatime,takeacollectionpananddump
thecontentsintothecorrespondinggraduated
cylinder.Recordtheamountofmaterial
collectedandreturnthepantoitslocation.
Repeatthisuntilallpancontentshavebeen
emptied.
Note:Repeatbroadcastingoverthetestsite
severaltimes,movinginthesamedirection
eachtime,untilenoughmaterialisdispensedto
thecollectionpantohalfllagraduatedcylinder.
8.Withthegraduatedmeasuringcylinderinthe
samestraightlineasthepans,evaluatethe
volumeofmaterialineachcylindertodetermine
thequalityofthedistributionfromthespreader.
9.Toadjustthespreaderpattern,refertothe
AdjustingtheSpreaderPattern(page33).
10.Fillthehopperhalf-fullofthedesiredmaterial
andrepeatsteps1through9untilyouachieve
auniformpattern.
DeterminingtheEffectiveSpreadingWidth
Usetheeffectivewidthtodeterminetheuniform
distributionofthematerial.
Note:Thespreadingwidthrangeis6to8m(20to
25ft).
1.Afterthespreaderpatterniscorrectlyadjusted,
evaluatetheamountofmaterialinthecenter
graduatedmeasuringcylinder.
2.Locatethe2graduatedcylinder,oneeachside
ofcenter,thatcontain1/2themeasuredamount
ofthematerialthatyouobservedinthecenter
graduatedcylinder.
3.Gotothetwocorrespondingpans.Startingfrom
theouteredge,measurethedistancebetween
leftpan,acrossthecenterpan,totheouteredge
oftherightpan,andrecordthemeasurement.
Recordtheeffectivespreadingwidthhere:
.
PreparingtheCalibrationCoursefor
CalculatingtheApplicationRate
1.Determineacourselengthbydividing93m
2
(1,000ft
2
)bytheeffectivespreadwidththat
youdeterminedinDeterminingtheEffective
SpreadingWidth(page28);usethecourse
lengthformula.Recordthecourselength
here:
.
CalibrationCourseLengthFormula
Formula
93m
2
(1,000ft
2
)
/Effectivewidth
measurement
=
Calibrationcourse
length
Example
93m
2
(1,000ft
2
)
/1.8m(6ft)
=
51m(167ft)
Note:Inthisexampletheeffectivewidth
measures1.8m(6ft).
2.Measureandvisiblymarkthecourselength.
Ensurethatyouallowenoughdistancebefore
thestartingmarkersothatthespreadermoving
forwardatfullspeedwhencrossingtherst
markofthecourse.
CalculatingtheApplicationRate
1.Determinetheareaandamountofmaterialthat
youareapplyingtothejobsiteandrecordthose
amountsintheareaandmaterialsworksheet.
Recordthejobsiteareahere:
.
Recordtheamountofjobsitematerialhere:
.
2.Initially,usetherecommendedapplicationrate
indicatedintheSpreadingCharts(page32)
sectionorusetheraterecommendedlistedon
theproductmanufacturer’slabelasaguideto
helpdeterminetheamountofmaterialthatyou
wouldspreadovera93m
2
(1,000ft
2
)area.
Note:Inthisexamplethecalibrationcourseis
1.8m(6ft)by51m(167ft).
3.Settheappropriatedrop-ratecamsetting;refer
totheSpreadingCharts(page32)asastarting
point.
4.Addmaterialtothehopper.
Note:Inthisexampleweadded11.3kg(25
lb)ofmaterial.
28