Troubleshooting
Problem
Solution
Thespringsarebreakingornotpullingback
theheadtonormalposition.
SlowthePTOspeedofthetractionunit.Thelongerandheavierthetines,the
greaterthecentrifugalforceonthehead.Checkforcrossedorbrokenspringwires.
Thetinesproduceelongatedorpickingholes.
Adjusttheangleofthetineorchangethetractionunitgroundspeed.Makesure
thatyoucanlowertheaeratoratleast5cm(2inches)belowatgroundlevel
toallowforundulation.
Thetinesarehittingthegroundwithanerratic
pattern.
•Checkforcrossedorbrokenspringwires.
•SlowthePTOspeedofthetractionunit.
ThePTOclutchslipsexcessively.
Adjustthetinestoashallowerdepth.Reviewtheclutchadjustmentprocedure.
ReplacePTOclutches.
Theturfispullingupwithcoringtines.Shallow-rootedturfmayrequiresolidtinesthersttime.
Thesoilistoohardforfullpenetration.
Aerateatadepththatthemachinecanachieve,waterovernight,andthenincrease
thedepth.Repeatifneededuntilyoucanaeratethesoilatthedesireddepth.
Thecoringtinesarebreaking.
Youaretryingtogettoomuchdepthforthesoilcondition.Seeaboveandaerateto
ashallowerdepth.
Thetinesdonotstayinthehead.
Tightenthetineholderbolts;donotusejamnutsoranimpactwrench.Ifthebolt
doesnotholdthetine,replaceit.
Thetinespullthesoilupwhenthemachine
raises.
RaisethemachinepartofthewayoutofthesoilbeforedisengagingthePTO.
Themachinedoesnotturn.
EnsurethatthePTO,driveshaft,anddrivechainsareworkingproperly.
Thetractionunithasdifcultyliftingthe
aerator.
Movethetractionunitliftarms7.5to10cm(3to4inches)closertotheaerator.
Ensurethatthetractionunithasthecapacitytolifttheaerator.
Thehydraulictoplinkcylinderisspongy.(It
“gives”andmovesinandoutashortspan
whenapplyinghydraulicpressure.
Bleedairisfromthecylinderorlines.
Themachineisnoisyorknocking.•Thecrankpinnuthasvibratedloose.
•Thechainsaretooloose.
•Theboltsonthebottomoftheframeattherearofthemainarmhavevibratedloose.
•Checktheoillevelinthegearbox.
Thehydraulictoplinkcylindercannotbefully
retracted(PTOshaftjams).
ThePTOshaftistoolongforyourtractionunit.CutPTOshafttothecorrectlength.
Thetractionunitisdifculttosteerwhenin
transport.
•Addweighttothefrontofthetractionunit.
•Checkthetirepressureandadjustitasrequired.
Thecamberbracketisdamaged.•Donotstoretheaeratoronthegroundwithtinesinstalled.
•Donotrunthecoringheadathighspeedforanextendedtimewhenthetines
areoutoftheground.
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