User Manual

SEEDHAWK®TOOLBAROPERATOR’SMANUAL44
4.14.1 LOOSESOILCONDITIONS
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If the soil is too loose before seeding, the final packed surface will be excessively below the
loose soil that is thrown to the sides. This increases the likelihood of soil  falling, blowing or
washingbackintothepackertirepath.Theresultisanalteredseeddepth.Thesolutiontothis
isto ensurethatthe soilis nottooloosebeforeseeding.It may benecessary topackthesoil
beforeseeding.
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THESEEDHAWKDRILLWILLCOVERADJACENTROWSIF:
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 Thesoilisconventionallytilledleavingitloose.
 Strawand/orchaffispoorlyspread,wetorinlargeclumps.
 Fieldtravelspeedisexcessive.Mayaffectabovelisteditems.
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4.14.2 MUDDYSOILCONDITIONS
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Seedingdepthmaybealteredifmudstickstothepackertire.Ifmudisonly0.25‐0.38in(6‐
10mm)thick,thenthisisnotusuallyaconcern.Assuminggoodsoilmoisture,thereducedseed
depthisstilladequate.Air‐inflatedpacker tiresshould bedeflatedslightlytoallowthetireto
bulgeslightlyandshedanymudbuildup.Ifthemudthicknessisuniform,theseeddepth,also,
willbeuniform,butshallowerthantheinitialdepthsetting.Itmaybedesirabletosettheseed
depthdeepertocompensateformudbuildup.
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4.14.3 OPERATINGONCURVESANDCORNERS
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Whenseedingaroundcurvesandcornersthepackerwheelmovesoutofthefurrowandrides
upon thehard,undisturbedfurrowshoulders.Packingforceis concentratedmoresoon the
shoulder and the packing on the seedbed is reduced.In addition to reduced packing action,
fertilizerplacementisalsoadverselyaffected.Optimumperformance,ofcourse,isseedingina
straightpathasmuchaspossible.Itisalsoimportanttoturnrighttokeepthefertilizeroutof
theseedrow.
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4.14.4 LOWPACKERTIREPRESSURE
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Forpackertiresthatareairinflated:ifthepackingforcesarehighandthetirepressureislow,
effectivepackingactionisreduced.Thetirewidensandridesharderonthefurrowshoulders.
Thiscanbecorrectedbyincreasingtirepressureand/orreducingdownwardpackingforce.SEE
FIGURE26.