OperatingtheSprayer
CAUTION
Chemicalsarehazardousandcancause
personalinjury.
•Readthechemicalmanufacture’s
directionsonthelabelbeforehandling
thechemicals;followallmanufacturer
recommendationsandprecautions.
•Keepchemicalsawayfromyourskin.
Shouldcontactoccur,washtheaffected
areathoroughlywithsoapandcleanwater.
•Weareyeprotection,gloves,andanyother
protectiveequipmentrecommendedbythe
chemicalmanufacturer.
Usethesprayertodisperseliquidherbicides,
pesticides,fertilizers,andothersubstances.Before
usingthesprayerensurethatyouhavecleaned
thetank,plumbing,andnozzlesbeforeaddingany
chemicals.Whenyouusethesprayer,yourstllthe
spraytank,thenapplythechemicalsolutiontothe
worksite,andthenwhenyouarenishedspraying,
cleanthetank.Itisimportanttocompleteall3of
thesestepstoavoiddamagingthesprayer.For
example,Donotmixandaddchemicalsinthespray
tankthenightbeforeandthensprayinthemorning.
Thiscouldleadtoseparationofthechemicalsand
possiblecausedamagetocomponentsofthesprayer.
Important:Whenyouuseyoursprayer,
thoroughlycleanitattheendoftheday.
CalibratingtheSprayer
Note:Beforeyouusethesprayerforthersttime
orchangethenozzlesorwhenthesprayerisoutof
adjustment—calibratethesprayerforgroundspeed
andowrate.
Note:Theleftandrightsprayerboomnozzlesare
widepattern(white)nozzlesandthecenternozzleis
anarrowpattern(red)nozzle.
Note:Refertothechemicalproductlabelfor
applicationraterecommendations.
Themethodtocalibratethesprayerowinvolves
drivingapresetdistance,recordingthetime,andthen
measuringtheamountofliquidappliedduringthat
time.
CalculatingtheGroundSpeed
Operatorsuppliedequipment:Stopwatchcapable
ofmeasuring±1/10second.
1.Measureandvisiblymarkacourselengthused
tocalculatetheaveragegroundspeed.Record
thecourselengthhere:
.
Note:Inthisexamplethecourselengthis45.7
m(150ft).
2.Addcleanwaterintothespraytankuntilitis1/2
full;refertoFillingtheSprayTank(page39).
3.Drivethemachinetoanareafarenoughaway
fromthecoursesothatwhenyouaredriving
itintothecourse,themachinetravelsatthe
desiredgroundspeedbeforereachingtherst
marker.
4.Useastopwatchtomeasurethetime(in
seconds)thatittakesthemachinetotravelthe
markedcourse(45.7m(150ft)inthisexample)
whilemaintainingthedesiredgroundspeed.
Recordyourcoursetimeinthecoursetime
worksheet.
CourseTimeWorksheet
Time
Test1seconds
Test2seconds
Test3seconds
5.Repeatsteps2through4anadditional2times.
6.Movethesprayertoalevelsurface,movethe
motion-controlleverintheNEUTRALposition,
shutofftheengine,waitforallmovingpartsto
stop,removekey,andengageparkingbrake.
7.Averagethe3testruntimes(inseconds);
usetheaveragecoursetimeformula.
Recordtheaveragecoursespeed
here:
.
AverageCourseTimeFormula
Formula
(time1)+(time
2)+(time3)
seconds
3
=
Theaveragetimeto
drivethecourse
Example21.6+19.1+
18.4seconds
3
=
19.7seconds
8.Calculatetheaveragegroundspeed;usethe
groundspeedformula.Recordtheaverage
groundspeedhere:
.
Note:1kph=16.6m/minute(1mph=88
ft/minute)
35