Figure23
Panspacingforlargergranulematerials
1.Spreadermovingtowards
pans
4.L1andR1collectionpan
gap(spreadaparttoallow
machinetopassthrough)
2.Centerpan5.30cm(12inch)gap
3.Collectionpans(gap
betweeneach)
6.Graduatedmeasuring
cylinder
•Forsmallgranulematerials:
Placesixadditionalpans,oneachside,withnogap
inbetweeneachpan(Figure24).
Figure24
Panspacingforsmallgranulematerials
1.Spreadermovingtowards
pans
4.Rightcollectionpans(no
gapbetweeneach)
2.Centercollectionpan
5.L1andR1collectionpan
gap(spreadaparttoallow
machinetopassthrough)
3.Lestcollectionpans(no
gapbetweeneach)
6.Graduatedmeasuring
cylinder
4.Setthedropratecamtotherecommendedapplication
rate;refertoSpreadingCharts(page29)todetermine
theappropriatedrop-ratecamsetting.
5.Fillthehopperapproximatelyhalf-fullwiththedesired
material;refertoFillingtheSpreaderHopper(page27).
6.Setthespreaderpatterncontroltothemiddleofits
travel;refertoAdjustingtheSpreaderPattern(page31).
7.Settheimpellerspeedtotheappropriatebroadcasting
rate.
8.Pullthewidedistributiongranulargatecontroltothe
openpositionanddrivethespreader,attheappropriate
speed,overthecenterpan.
Note:Repeatbroadcastingoverthetestsiteseveral
times,movinginthesamedirectioneachtime,until
enoughmaterialisdispensedtothecollectionpanto
llagraduatedcylinderhalffull
9.Labeleachgraduatedmeasuringcylindertocorrespond
withthedistributionpans(i.e....L2,L1,Center,R1,
R2...);refertoFigure23andFigure24.
10.Oneatatime,takeacollectionpananddumpthe
contentsintothecorrespondinggraduatedcylinder.
Recordtheamountofmaterialcollectedandreturnthe
pantoitslocation.Repeatthisuntilallpancontents
havebeenemptied.
11.Withthegraduatedmeasuringcylinderinthesame
straightlineasthepans,evaluatethevolumeof
materialineachcylindertodeterminethequalityofthe
distributionfromthespreader.
12.Toadjustthespreaderpattern,refertotheAdjusting
theSpreaderPattern(page31).
13.Repeatsteps5through12untilanuniformpatternis
achieved.
DeterminingtheEffectiveSpreadingWidth
Theeffectivewidthisusedtodeterminetheuniform
distributionofthematerial.
Note:Thespreadingwidthrangeis6to8m(20to25ft).
1.Afterthespreaderpatterniscorrectlyadjusted,
evaluatetheamountofmaterialinthecentergraduated
measuringcylinder.
2.Locatethetwotubes,oneeachsideofcenter,that
contain1/2themeasuredamountofthematerialthat
youobservedinthecentergraduatedcylinder.
3.Gotothetwocorrespondingpans.Startingfromthe
outeredge,measureandrecordthedistancebetween
leftpan,throughthecenterpan,totheouteredgeof
therightpan.
Note:Thismeasurementistheeffectivespreading
width.
CalculatingtheApplicationRate
1.Determinetheareaandamountofmaterialthatyou
areapplyingtothejobsite.
2.Determinethecalibrationcourselengthasfollows:
A.Initially,usetherecommendedrateindicatedin
theSpreadingCharts(page29)sectionorthe
raterecommendedontheproductmanufacturer’s
labelasaguidetohelpdeterminetheamount
ofmaterialthatyouwouldspreadovera93m
2
(1,000ft
2
)area.
26