7
OPERATION
CAUTION: WEAR EYE PROTECTION,
GLOVESANDPROTECTIVECLOTHING
WHENHANDLINGANDWORKINGWITH
LAWNCHEMICALS.
FIGURE 11
BEFORE STARTING
It is important totesttheboomandspraygunwithplain
waterbeforeusingchemicals.Thiswillenableyoutocheck
thesprayerforleaksandtosetthespraypatternandnozzle
pressure.Ifaleakshouldoccur,threadtapemaybeused
tobettersealthetting.
ON-OFF SWITCH
Thisswitchisconnectedinlinetothewiringassemblyand
isusedbytheoperatortoturnthepumpmotoronoroff.
PUMP PRESSURE SWITCH
Thepumpisequippedwithapressureswitch.Thepressure
switchsensesoutletpressureofthepumpandwillturnoff
theelectricalpowertothepumpatapredeterminedhigh
pressurepoint(60PSI).Iftheowdemandisverylow,the
pumpmayreachthishighpressurepointandtheswitchwill
cause"cycling"(thepumpcyclesonandoffrapidly).Thisis
notaproblemunlessthepumpissubjecttocontinuouscycling
withinonesecondintervalsforlongperiodsoftime.
ADJUSTING OPERATING PRESSURE
Thesprayerisequippedwitha"Y"ttingcontainingabypass
valveandaboomvalve.Thebypassvalvecontrolstheow
tothereturn(bypass)hose.Theamountofowthroughthe
returnhosedeterminestheoperatingpressurewhenthe
boomorthespraygunisinuse.Adjustthebypassvalve
whileeithertheboomorthespraygunisinusetoobtain
thedesiredpressure,indicatedbythepressuregauge.The
tipchartonpage9showshowdifferentpressuresettings
affectboomapplicationrates.
ON-OFF ADJUSTMENT OF BOOM NOZZLES
Theboomvalveonthe"Y"ttingcontrolsowtotheboom
nozzles.Itshouldbeeithercompletelyopenorcompletely
closed.The boom operating pressure can be controlled
usingthebypassvalveonthe"Y"tting.
ADJUSTING SPRAY GUN NOZZLE
Turnthenozzleonthesprayguntoadjustthesprayfrom
aconeshapednemisttoastraightstream.Controlthe
spraygunoperatingpressurewiththebypassvalveonthe
"Y"tting.Maximumspraygunpressurecanbeattained
whentheboomisshutoff.
SETTING THE BOOM FOR SPRAYING
The correct positioning of the boom places the nozzles
approximately40"apartand 14"abovetheground.This
givesaspraywidthofapproximately80"withaslightcenter
overlap.Seegure11.
a. Slidetheboombarsouttotheendsofthe
slots.
b. Swiveltheboombarsuntilthenozzlesare
approximately14"abovetheground.
c. Makesurethenozzlesareadjustedsothatthe
openingspointstraightdown.
USING THE SPRAYER
1. Determine the application rate (gallons per 1,000
sq. feet or gallonsper acre) basedon the chemical
manufacturersrecommendations.Usethisratetohelp
select the pressure setting and tractor speed in the
following instructions.
2. Determinetheapproximatesquarefootageoftheareato
besprayedandestimatethenumberofgallonsrequired.
Thiscanhelpavoidunneededsolutionleftinthetank.
3. Determinetheappropriatespeedatwhichtotravel,based
onthechosenpressuresettingandtherecommended
applicationrate.Usethetipchartonpage9.
4. To determine the throttle setting for attaining the
appropriate speed, mark off 100, 200 and 300 feet
intervals. The speed chart at the bottom of page 9
indicatesthenumberofsecondsittakestotravelthese
distances.Setthethrottleand,witharunningstart,travel
thedistancesinthenumberofsecondsindicatedby
thespeedchart.Onceyouhavedeterminedthethrottle
andgearsettings needed, markthe throttle location
sothatyoucaneasilyresumethesamespeedafter
stopping.
5. Settheoperatingpressure.Spraywithplainwaterto
helpdeterminethebestsetting.Forbestresultsstay
inthe20to30PSIrange.(At10PSIthespraypattern
beginstobreakup,at40PSIsomedriftdevelops.)Refer
tothetipchartonpage9.
6. Add the chemical solution to the tank, following the
product instructions.
7. Drivetothestartingplaceforspraying.Settheboom
inpositionforspraying.Setthethrottleattheposition
determinedinstep4.Flipthesprayer'sin-lineswitchto
the"ON"positiontostartspraying.
8. Stayclearofowers,shrubsandevergreentreeswhen
spraying weed control solutions to prevent contact of
thesolutionwiththesesensitiveplants.
ENGLISH