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McCAULEYPROPELLERSYSTEMS

CONSTANTSPEEDCOMPOSITEOWNER/OPERATOR

INFORMATIONMANUAL

•brushblockassembly

(a)Thebrushblock,deiceharnesses,andslipringassemblyconductelectricalpowertothe

propellerbladedeicebootelementswhichthenheat.

(b)Theheatmeltsalayeroftheicewhichallowstheremainingicetoberemovedfromthe

propellerbladesbycentrifugalforce.

F.PropellerDeiceBoots(ifinstalled).

(1)Thedeicebootsareconstructedoffabric-reinforced,abrasion-resistantrubber.Electricaldeice

bootshaveawiremeshorfoilelementthatheatsascurrentissuppliedtotheboot.Adeice

timercontrolsthecurrentcyclethatisappliedtoindividualbladesorbootsegments.Theouter

surfaceofthedeicebootthatisexposedtotheenvironmenthasaglossynish,whiletheside

thatisbondedtothepropellerhasadull,mattenish.

G.DeiceHarness(ifdeiceisinstalled)-Thedeiceelectricalharnessesconnectthedeicebootstothe

slipringassemblytocompletethedeiceelectricalcircuit.

H.DeiceSlipRingAssembly(ifdeiceisinstalled)-Thedeiceslipringassemblyisconstructedof

machinedaluminumwithbronzecommutatorringsbondedtooneside.Studstoattachthedeice

leadsforeachbladearelocatedonthepropellersideoftheplatter.Thesearebrazedtothe

commutatorringsandpassthroughholesprovidedforthatpurpose.Slipringassembliesmaybe

securedtothehub,tothestarterringgear,orthealternatorbeltdrivepulley.

I.Forpropellersequippedwithananti-icesystem,refertoAnti-IceSystemsectioninthismanual.

NOTE:Refertotheairplaneserviceormaintenancemanualforamoredetaileddescriptionofthe

propelleranti-icecomponents.

2.OverhaulPeriod

A.Allpropellersaretobeoverhauledatspecicintervals.RefertothePropellerInspectionsection,

TimeBetweenPropellerOverhaulforrequiredpropelleroverhaulintervals.Propellersshallalsobe

overhauledorrepairedasrequiredforbladesurfaceconditions.

3.PropellerModelDesignation

A.McCauleyusesamodeldesignationsystemtoidentifyspecicpropellers.Thisisdonebyutilizinga

combinationofhubandblademodeldesignations.

B.HubModelDesignation.

(1)Thehubmodeldesignationissteelstampedonthepropellerhub.RefertoFigure3foran

illustrationofthehubmodeldesignation:

C.BladeModelDesignation

(1)Allbladesaremarkedonthebuttendwithablademodeldesignation,propellertypecerticate

number,andbladeserialnumber.Thisstampingisnotvisiblefromtheoutsideofthepropeller

assembly.RefertoFigure4forillustrationsofthepropellerblademodeldesignationblade

stampingandanillustrationofthepropellerbladebuttend.

61-03-00Page3

Textron Cessna User Manual

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