Textron Cessna - Page 32

McCAULEYPROPELLERSYSTEMS
CONSTANTSPEEDCOMPOSITEOWNER/OPERATOR
INFORMATIONMANUAL
1Doatestight.
2PullthepropellercontrolbackuntilitreachesredlineRPM.
3AllowtheRPMtostabilize.
4Landtheaircraftwithouttouchingthepropellercontrollever.
5Adjustthepropellerstopscrewtothepropellercontrollocation.
6Rigtheaircraftpowercontrolsinaccordancewiththeinstructionsofthemanufacturer.
7Doanotherighttesttoverifythecorrectsetting.
6.PropellerFailstoControl
A.Propellergoestolowpitch(highRPM)ofitsownaccord.
(1)PossibleCause:
(a)Governorlinkagedisconnected.
1
CorrectiveAction:
a
Checkandrepairgovernorlinkage.
(b)Enginetransferbearing/collaroilleakagerateexceedsspecication.
1
CorrectiveAction.
a
Checktransferbearing/collaroilleakageratepertheinstructionsoftheengine
manufacturer.
(c)Lossofengineoilpressure.
1
Correctiveaction:
a
Verifytheengineoilpressureinaccordancewiththeinstructionsoftheengine
manufacturer.
(d)Obstructioninthecrankshaft.
1
Correctionaction:
a
Removepropellerandcheckforobstructioninthecrankshaftoilgalleryi.e.rags,
shippingplugs,etc.).
(e)Internalgovernorproblem.
1
CorrectiveAction:
a
HavethegovernorcheckedbyanFAAapprovedPart145PropellerRepair
Stationorinternationalequivalent.
NOTE:Failureofaninternalgovernorpartmayresultinmetalcontamination
intheengineoillubricationsystem.Ifinternalgovernorfailureis
conrmed,theengineandpropellershouldbecheckedformetal
contaminationinaccordancewiththespecicationsoftheengine
manufacturer.
B.Extremesluggishness,failuretorespondtochangesinRPMsettingorfailuretoholdconstantRPM
withvaryingaircraftattitude.
(1)PossibleCause:
(a)Obstructionintheenginecrankshaft.
1
Correctionaction:
a
Removepropellerandcheckforobstructioninthecrankshaftoilgallery(i.e.
Rags,shippingplugs,etc.).
(b)Internalgovernorproblem.
1
CorrectiveAction:
a
HavethegovernorcheckedbyanFAAapprovedPart145PropellerRepair
Stationorinternationalequivalent.
NOTE:Failureofaninternalgovernorpartmayresultinmetalcontamination
intheengineoillubricationsystem.Ifinternalgovernorfailureis
conrmed,theengineandpropellershouldbecheckedformetal
contaminationinaccordancewiththespecicationsoftheengine
manufacturer.
(c)InternalPropellerproblem.
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©McCauleyPropellerSystemsJan9/2017