Problem
PossibleCauseCorrectiveAction
1.Theimpellerisdirtyordamaged.
1.Clean,repair,orreplacetheimpeller.
2.Thespreader-patterncontrolisnot
adjustedproperly.
2.Adjustthespreader-patterncontrol;
refertotheAdjusttheSpreaderPattern
procedureintheUsingtheSpreader
section.
3.Thesprayernozzlesareclogged.
3.Cleanorreplacethenozzles.
4.Thehopperscreenisplugged.
4.Cleanthehopperscreen.
5.Materialinthehopperisclumpedover
thegate.
5.Checktoseeiftheagitatorpinforthe
shaftoftheimpellermotorispresent.
Thespreaderorsprayerpatternisuneven.
6.Thediffuserrampsettingisincorrect.6.Adjustthepositionofthecontrolcable.
1.Thesprayertankisempty.1.Fillthesprayertank.
2.Thesprayer-pumpsupplyvalveis
closedorpartiallyclosed.
2.Fullyopenthesprayer-pumpsupply
valve.
3.Thestraineriscloggedordamaged.
3.Clean,repair,orreplacethestrainer.
4.Thepumpiscloggedordamaged.
4.Clean,repair,orreplacethepump.
5.Thenozzlesareclogged.
5.Cleanorreplacethenozzles.
6.Thehosesareclogged,kinked,or
damaged.
6.Clean,repair,orreplacethehoses.
7.Thetank-agitationleverisintheON
position.
7.Movethetank-agitationlevertothe
OFFposition.
8.Thesprayer-patternleverisnotinthe
ONposition.
8.Movethenarrow-orwide-sprayer
patternlevertotheONposition.
9.Thesprayerpressureandground
speedareincorrect.
9.Adjustthesprayerpressureandthe
groundspeedofthemachine.
10.Thechemicalmixtureinthesprayer
tankisincorrect.
10.Followchemicalmanufacturer’s
recommendation.
Thereisnosprayfromthesprayernozzles
intheboomorthenozzleshavepoor
output.
11.Thespraysystemisleaking.
11.Inspectthecomponentsofthesprayer
system;clean,repair,orreplace
thesprayer-systemcomponentsas
needed.
1.Hopperscreenisplugged.
1.Cleanhopperscreen.
Nomaterialdispensedfromhopper.
2.Gatenotadjustedproperly.2.Adjustthegate.SeeSpreaderPattern
AdjustmentsectioninOperation.
1.Thesprayertankisempty.1.Fillthesprayertank.
2.Thesprayer-wand-pressurecontrolis
inthewrongposition.
2.Rotatethepressurecontroltothe
OPENposition.
3.Thewandiscloggedordamaged.
3.Clean,repair,orreplacethewand.
4.Thespraynozzleforthewandis
clogged.
4.Cleanorreplacethenozzle.
5.Thetriggerisnotpressed.5.Pressthetrigger.
6.Thehoseiscloggedordamaged.
6.Clean,repair,orreplacethehoses.
7.Thehoseisnotconnectedtothewand.
7.Connectthehosetothewand.
Thespraywanddoesnotwork.
8.Thehoseforthewandiskinked.8.Straightenthekinkinthehose.
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