Operator's Manual

afteraeratingwilldependonvariousfactorsincludingturf
condition,rootgrowthandmoisturecontent.
HardGround
Ifthegroundistoormtoobtainthedesiredaerationdepth,
thecoringheadcangetintoa“bouncing”rhythm.Thisis
duetothehardpanthetinesareattemptingtopenetrate.
Thisconditioncanbecorrectedbyattemptingoneormore
ofthefollowing:
•Bestresultsareobtainedafterarainorwhenturfhas
beenwateredthepreviousday.
•Reducethenumberoftinesperstomperarm.Attempt
tomaintainasymmetricaltinecongurationtoevenly
loadthestomperarms.
•Reduceaeratorpenetration(depthsetting)ifgroundis
hardpacked.Cleanupcores,waterturf,andaerateagain
atadeeperpenetration.
Aerationofsoiltypesbuiltontopofhardsubsoils(i.e.
sand/soilcapplacedoverrockyground)cancauseundesired
holequality.Thisiscausedwhentheaerationdepthisgreater
thanthesoilcapandthesubsoilistoohardtopenetrate.
Whenthetinescontactthissubsoiltheaeratormayliftand
causethetopoftheholestobecomeelongated.Reducethe
aerationdepthsufcientlytoavoidpenetrationintothehard
subsoil.
Longer/LargerTines(10inchesor
more
Usinglonger/largertinescanleavethefrontorrearof
theholetuftedorslightlydeformed.Holequalityforthis
congurationgenerallyimprovesifthecoringheadspeed
isreduced10-15%fromfulloperatingspeed.ForPTO
poweredaeratorsreducetheenginespeeduntilthePTO
speedisaround400–420rpm.Theforwardspacingisnot
effectedbyreducingtheenginespeed.Thepushedholecan
alsobeaffectedbythepositionofthecamberbracket.Refer
toAdjustingtheTineAngle.
MultiRowAdapterHeads
Whenusingmultirowadapterheads,reducetheenginespeed
untilthePTOspeedisaround400–420rpm.Theforward
spacingisnoteffectedbyreducingtheenginespeed.
RootZoneLifting
Usingmulti-tineheadsinconjunctionwithlargercoringtines
orlargediametersolidtinescaninducesignicantstresson
therootzoneoftheturf.Thisstresscanfracturetheroot
zoneandcausealiftingactiontotheturf.Ifthisdamage
occurstryoneormoreofthefollowing:
•Reducetinedensity(removesomeofthetines)
•Decreasecoringdepth(suggestedin1/2inchincrements)
•Increaseforwardholespacing(changetractor
transmissionuponegear)
•Decreasethetinediameter(solidorcoring)
UsingtheHoodPropRods
ModelSR75only
1.Releasethelatchoneachsideoftheaeratorhood.
2.Raisethehood.
3.Oneachsideofthehood,pivottheproproddown
frommagneticstoragebracketandinsertitintothe
proprodcatch(Figure34).
g017489
1
2
3
Figure34
1.Proprodcatch3.Magneticstoragebracket
2.Proprod
4.Whenloweringthehood,returntheproprodstothe
magneticstoragebrackets.
AdjustingtheTineAngle
ModelSR72
Setthecamberbracket(Figure35)tothecorrectposition
basedonthelengthoftinestobeused.Theheadstopisset
tooneofvepredeterminedpositionsbychoosingthehole
throughwhichtheadjustmentrodisbolted.Theseholesare
presetsonly;forinstance,byusinga10inchtineinthe12
inchpositionyoumayachieveasmoothernish;depending
ontheapplication.
1.DisengagethePTOandengagetheparkingbrake.
2.Stoptheengineandremovethekeyfromignition
switch.
3.Releasethespringtensiontothetinehead(
Figure35).
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