Toro 34230 - Spreader Calibration; Test Site Preparation

CalibratingtheSpreader
Calibratethespreadereachtimeyouuseanew
material.Thespreaderbroadcastsmaterialina
pattern1.5to6.7m(5to22ft)widedependingonthe
materialparticlesize,volume/density,rateoftravel,
andwindconditions.
UsetheSpreadingCharts(page32)alongwith
informationfromDeterminingtheDistributionPattern
(page28),DeterminingtheEffectiveSpreadingWidth
(page28),andCalculatingtheApplicationRate(page
28)whencalibratingthespreader.
PreparingtheTestSiteandMachine
Operatorsuppliedequipment:15shallowcollection
pansand15graduatedmeasuringcylinders
Note:Themostaccuratemethodtomeasure
thedistributionusesshallowcollectionpansand
graduatedmeasuringcylinders.Intheexamplebelow,
the15shallowcollectionpansapproximately30cm
(12inches)wide,91cm(36inches)long,and5cm
(2inches)tall.
1.Placeonepaninthecenterofthedrivepath.
Arrangethenexttwopans,oneoneachside,
farenoughaparttoallowadequateroomforthe
drivetiresofthemachinetopassaroundthe
centerpan.
2.Placetheremainingpansinastraightlineas
showninFigure28orFigure29.
•Forlargergranulematerials:
Space6additionalpans,oneachside,12
inches(30cm)apart(Figure28).
g027328
Figure28
Panspacingforlargergranulematerials
1.Spreadermovingtoward
pans
4.L1andR1collectionpan
gap(spreadaparttoallow
machinetopassthrough)
2.Centerpan5.30cm(12inch)gap
3.Collectionpans(gap
betweeneach)
6.Graduatedmeasuring
cylinder
•Forsmallgranulematerials:
Place6additionalpans,oneachside,with
nogapinbetweeneachpan(Figure29).
g027327
Figure29
Panspacingforsmallgranulematerials
1.Spreadermovingtoward
pans
4.Rightcollectionpans(no
gapbetweeneach)
2.Centercollectionpan
5.L1andR1collectionpan
gap(spreadaparttoallow
machinetopassthrough)
3.Lestcollectionpans(no
gapbetweeneach)
6.Graduatedmeasuring
cylinder
3.Movethemachinefarenoughawayfromthe
testarea(wherethecollectionpansarelocated)
toensurethatthemachinetravelsatthedesired
spreadingspeedbeforereachingthesite.
4.Determinetheapplicationrateandtherelated
drop-ratecamsetting;refertoSpreadingCharts
(page32).
5.Rotatethedropratecam(Figure30)tothecam
settingyoudeterminedinstep4.
g259776
Figure30
1.Dropratecam
6.Fillthehopperapproximatelyhalf-fullwiththe
desiredmaterial;refertoFillingtheSpreader
Hopper(page29).
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