hovercraft owner's manual 300 - hartzell...

MANUAL REVISION TRANSMITTALManual 300

Operation, Maintenance Manual, and Logbook for Propeller SystemHM-5V1-A1000-AHM-6V1-A1000-A

REVISION 1 dated September 2013Attached is a copy of Revision 1

Page Control Chart for Revision 1:Remove Insert Page No. Page No.

Discard entire Manual 300 Replace with entire Manual 300, Rev. 1

NOTE: When the manual revision has been inserted in the manual, record the information required on the Record of Revisions page in this manual.

HARTZELL PROPELLER INC.One Propeller PlacePiqua, Ohio 45356-2634 U.S.A.Telephone: 937.778.4200Fax: 937.778.4391

This page may be discarded after proper filing of the revision.

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Hartzell Propeller Inc.One Propeller PlacePiqua, Ohio 45356-2634 U.S.A.Phone: 937.778.4200Fax: 937.778.4321

Operation, Maintenance Manual, and Logbook for

Propeller Systems HM-5V1-B1000-A HM-6V1-A1000-A

Manual No. 300Revision 1September 2013

Inside Cover Rev. 1 Sep/13

COVER

OPERATION AND MAINTENANCE MANUAL, AND LOGBOOK 300

2009, 2013 - Hartzell Propeller Inc. - All rights reserved

OPERATION, MAINTENANCE MANUAL, AND LOGBOOK 300

Page 1 Rev. 1 Sep/13REVISION HIGHLIGHTS

REVISION 1 - HIGHLIGHTS

RevisedtheCover,RevisionHighlights,ListofEffectivePages,andTableofContents tomatchthemanualrevision.

Thisrevisionchangedthe5bladepropellermodelnumberfrom103245to HM-5V1-B1000-Aandtheblademodelfrom103117to108MH92.

Thisrevisionaddedthe6bladepropellermodelnumberHM-6V1-A1000-Aandtheblademodel138MH91.

INTRODUCTION

RevisedtheStatementofPurposesection

RevisedtheRequiredPublicationssection

AddedtheGeneralsection

RevisedtheComponentLifeandServicesection

AddedtheDefinitionssection

RevisedtheAbbreviationssection

AddedtheWarrantyServicesection

Changed"Hartzell"to"HartzellPropellerInc."whereapplicable

DESCRIPTIONANDOPERATION

RevisedtheFunctionalDescriptionandOperationofPropellerSystemtoincorporatethesixbladepropeller

RevisedFigure2-1,PropellerSystemComponentsandFigure2-2,SectionofTypicalCompositeBlade

AddedtheTable2-1,PropellerModelDesignationsandTable2-2,BladeModelDesignations


Minorformatchanges


Page2 Rev. 1 Sep/13REVISION HIGHLIGHTS

INSTALLATIONANDREMOVAL

Permitteduseof0.032inch(0.82mm)diameterstainlesssteelsafetywire

RevisedTable3-1,SpecialToolsandEquipment

RevisedTable3-2,ConsumableMaterialsList

RevisedFigure3-1,PropellerSystemComponents

RevisedTable3-3,TorqueValues

RevisedTable3-4,O-ringandPropellerMountingHardwareIdentification

Addedassemblyinstructionsforthe6bladeHovercraftpropeller


RevisedFigure3-2,AlignmentofBladeBearingSplitandFigure3-3,PositionofPreloadPlateCutouttospecify90

RevisedFigure3-4A,5BladeHubAssembly

RevisedFigure3-4B,6BladeHubAssembly

AddedinstructionstosealthehubpartinglinewithCM257

AddedinstructionsforinstallationofthepitchlockbracketwithFigure3-8,InstallationofHubClampingBoltsandPitchLockBracket

AddedinstructionsforinstallationofthebladesealwithFigure3-8,InstallationofBladeSeal

AddedinstructionstopressurecheckthehubwithFigure3-9,PressureCheckHub

Addedinstructionstooilfillthehub-6BladeonlywithFigure3-10,Oil-filling6BladePropeller

Added6BladepropellerstoFigure3-12,DiagramofTorquingSequenceforPropellerMountingBolts

Minorformattingchanges

TESTINGANDTROUBLESHOOTING Changed"Hartzell"to"HartzellPropellerInc."whereapplicable

RevisedFigure4-1,PitchLockKit

Minorchanges


Page 3 Rev. 1 Sep/13REVISION HIGHLIGHTS

INSPECTIONANDCHECK

Addedreferencestoreddyedoilleakage

AddedreferencestocontactHartzellPropellerInc.ProductSupport

AddedPropellerCriticalPartsCaution

RevisedtheEngineOverspeedLimitsFigure5-3

RevisedthePackagingandStoragesection

RevisedtheActivatingaPropellerAssemblyAfterLongTermStoragesection


Minorchanges

MAINTENANCEPRACTICES

RevisedtheLubricationsection

AddedaCoinTapInspectionsection

RevisedtheCompositeBladeOperableDamagesection

AddedtheCompositeBladeOperableDamageLimitssectionandapplicablefigures

AddedthePaintingAfterRepairsection

AddedtheDynamicBalancesection


RECORDS

AddedRecordSheetsforthe108MH92blades

AddedRecordSheetsforthe138M()91blades


RevisionHighlights

1. IntroductionA. General

(1) Thisisalistofcurrentrevisionsthathavebeenissuedagainstthismanual.PleasecompareittotheRECORDOFREVISIONSpagetoensurethatallrevisionshavebeenaddedtothemanual.

B. Components

(1) RevisionNo.indicatestherevisionsincorporatedinthismanual.

(2) IssueDateisthedateoftherevision.

(3) Commentsindicatestheleveloftherevision.

(a) NewIssueisanewmanualdistribution.Themanualisdistributedinitsentirety.Allthepagerevisiondatesarethesameandnochangebarsareused.

(b) Reissueisarevisiontoanexistingmanualthatincludesmajorcontentand/ormajorformatchanges.Themanualisdistributedinitsentirety.Allthepagerevisiondatesarethesameandnochangebarsareused.

(c) MajorRevisionisarevisiontoanexistingmanualthatincludesmajorcontentorminorcontentchangesoveralargeportionofthemanual.Themanualisdistributedinitsentirety.Allthepagerevisiondatesarethesame,butchangebarsareusedtoindicatethechangesincorporatedinthelatestrevisionofthemanual.

(d) MinorRevisionisarevisiontoanexistingmanualthatincludesminorcontentchangestothemanual.Onlytherevisedpagesofthemanualaredistributed.Eachpageretainsthedateandthechangebarsassociatedwiththelastrevisiontothatpage.

RevisionNo. IssueDate Comments Original Feb/09 NewIssue

Revision1 Sep/13 Reissue

Page4 Rev. 1 Sep/13REVISION HIGHLIGHTS


Page 5 Rev. 1 Sep/13

RECORD OF REVISIONS

This is a permanent historical record of revisions inserted into this manual.

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Orig Feb/09 Feb/09 HPI

1 Sep/13

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RECORD OF REVISIONS



This is a permanent historical record of revisions inserted into this manual.

RECORD OF REVISIONS

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DateInserted

Inserted By

RECORDOFREVISIONS

Rev. 1 Sep/13

RECORD OF TEMPORARY REVISIONS


TemporaryRevision No.

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IssueDate

DateInserted

InsertedBy

DateRemoved

RemovedBy

RECORDOFTEMPORARYREVISIONS

Updatethispagetoshowalltemporaryrevisionsinsertedintothismanual.

Rev. 1 Sep/13

RECORD OF TEMPORARY REVISIONS


RECORDOFTEMPORARYREVISIONS

Updatethispagetoshowalltemporaryrevisionsinsertedintothismanual.

TemporaryRevision No.

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SERVICE DOCUMENT LIST


SERVICEDOCUMENTLIST

SERVICE DOCUMENT LIST





SERVICEDOCUMENTLIST

LIST OF EFFECTIVE PAGES

Chapter Page Rev. Level Date

LIST OF EFFECTIVE PAGESPage 11

Rev. 1 Sep/13


Cover/Inside Cover 1 and 2 Rev. 1 Sep/13Revision Highlights 1 thru 4 Rev. 1 Sep/13Record of Revisions 5 and 6 Rev. 1 Sep/13Record of Temporary Revisions 7 and 8 Rev. 1 Sep/13Service Document List 9 and 10 Rev. 1 Sep/13List of Effective Pages 11 and 12 Rev. 1 Sep/13Table of Contents 13 and 14 Rev. 1 Sep/13Introduction 1-1 thru 1-14 Rev. 1 Sep/13Description and Operation 2-1 thru 2-8 Rev. 1 Sep/13Installation and Removal 3-1 thru 3-34 Rev. 1 Sep/13Testing and Troubleshooting 4-1 thru 4-8 Rev. 1 Sep/13Inspection and Check 5-1 thru 5-18 Rev. 1 Sep/13Maintenance Practices 6-1 thru 6-24 Rev. 1 Sep/13Records 7-1 thru 7-26 Rev. 1 Sep/13

(Thispageisintentionallyblank.)

LIST OF EFFECTIVE PAGESPage 12

Rev. 1 Sep/13


Rev. 1 Sep/13

TABLE OF CONTENTS


INTRODUCTION ......................................................................................................1-1

DESCRIPTIONANDOPERATION ..........................................................................2-1

INSTALLATIONANDREMOVAL .............................................................................3-1

TESTINGANDTROUBLESHOOTING ....................................................................4-1

INSPECTIONANDCHECK .....................................................................................5-1

MAINTENANCE PRACTICES .................................................................................6-1

RECORDS ...............................................................................................................7-1

TABLE OF CONTENTS

Rev. 1 Sep/13

TABLE OF CONTENTS


(Thispageintentionallyleftblank.)

1 Rev. 1 Sep/13

INTRODUCTION


INTRODUCTION-CONTENTS

1. Statement of Purpose ..............................................................................................1-3

2. Required Publications ..............................................................................................1-4

3. General ....................................................................................................................1-4

A. Personnel Requirements ....................................................................................1-4

B. Maintenance Practices .......................................................................................1-5

4. Component Life and Service ....................................................................................1-7

A. Overhaul(MajorPeriodicInspection) .................................................................1-7

B. Rework ................................................................................................................1-7

C. Repair .................................................................................................................1-7

D. ComponentLife ..................................................................................................1-8

E. Propeller Critical Parts ........................................................................................1-8

5. Definitions ................................................................................................................1-9

6. Abbreviations .........................................................................................................1-12

7. WarrantyService ....................................................................................................1-13

2 Rev. 1 Sep/13

INTRODUCTION



3 Rev. 1 Sep/13

INTRODUCTION


1. Statement of Purpose

CAUTION: KEEPTHISMANUALWITHTHEPROPELLERORWITHTHEHOVERCRAFTONWHICHITISINSTALLED,ATALLTIMES.THELOGBOOKRECORDWITHINTHISMANUALMUSTBEMAINTAINED,RETAINEDCONCURRENTLY,ANDBECOMEAPARTOFTHEHOVERCRAFTANDENGINESERVICERECORDS.

A. This manual supports Hartzell Propeller Inc. aluminum hub Hovercraft propellers withcompositeblades.The5bladepropellerwaspreviouslyidentifiedasmodelnumber103245.RefertoTable2-1,PropellerModelDesignation.

B. Thepurposeofthismanualistoenablequalifiedpersonneltoinstall,operate,andmaintain a Hartzell Propeller Inc. aluminum hub Hovercraft propellers.

C. Thismanualcoversseveraldesigntypes.

NOTE: Allpropellermodelscoveredbythismanualusecompositepropellerblades.

D. General

(1) ContacttheHartzellPropellerInc.ProductSupportDepartmentconcerninganymaintenance problems or to request information not included in this manual.

(a) HartzellPropellerInc.ProductSupportmaybereachedduringbusinesshours(8:00a.m.through5:00p.m.,UnitedStatesEasternTime) at(937)778-4379orat(800)942-7767,tollfreefromtheUnitedStates and Canada.

(b) Afterbusinesshours,youmayleaveamessageonour24hourproductsupportlineat(937)778-4376.Atechnicalrepresentativewillcontactyouduringnormalbusinesshours.UrgentCOG(CraftonGround)supportisalsoavailable24hoursperday,sevendaysperweekviathismessageservice.

(c) Additionalinformationisavailableonourwebsiteat www.hartzellprop.com.

NOTE: WhencallingfromoutsidetheUnitedStates,dial(001)beforedialingthe above telephone numbers.

(2) ThismanualistobeusedbypersonnelwhoaretrainedandexperiencedwithHartzell Propeller Inc. products.

(3) Thismanualprovidesoperation,installation,andlinemaintenanceinformationfor the Hartzell Propeller Inc. propellerHovercraftsystemwithcompositeblades.

(4) Installation,removal,operation,andtroubleshootingdataisincludedinthispublication;however,theHovercraftmanufacturersmanualsshouldbeusedinaddition to this information.

4 Rev. 1 Sep/13

INTRODUCTION


2. Required Publications

A. For Hartzell Propeller Inc. service literature and revisions, contact:

Hartzell Propeller Inc. ProductSupportDepartment One Propeller Place Piqua, Ohio 45356-2634 U.S.A. Telephone: 937-778-4200 Fax: 937-778-4365

B. References to Hartzell Propeller Inc. Publications

(1) Specialtoolingmayberequiredforproceduresthroughoutthismanual.ToolingreferencesappearwiththeprefixTEdirectlyfollowingthetoolnametowhichtheyapply.Forfurthertoolinginformation,refertoTable 3-1, Special Tools and Equipment in the Installation and Removal chapter of this manual and Hartzell PropellerInc.IllustratedToolandEquipmentManual165A(61-00-65).

(2) Consumablematerialsarereferencedincertainsectionsthroughoutthismanual.ThereferencenumberforaconsumablematerialwillappearwiththeprefixCMdirectlyfollowingthematerialtowhichitapplies.For example,anapprovedadhesivewhichisreferencenumber23willappear as:approvedadhesiveCM23.Specificapprovedmaterialsarelistedin Table 3-2, Consumable Materials List in the Installation and Removal chapter of this manual and in the Hartzell Propeller Inc. Standard Practices Manual202A(61-00-02).

C. Vendor Publications

(1) None

3. General

A. Personnel Requirements

(1) Inspection,Repair,andOverhaul

(a) CompliancetotheapplicableregulatoryrequirementsestablishedbytheMaritimeandCoastguardAgency(MCA)orforeignequivalentismandatoryforanyoneperformingoracceptingresponsibilityforanyinspectionand/orrepairand/oroverhaulofanyHartzellPropellerInc.Hovercraft product.

(b) Personnelperformingmaintenanceonpropellersareexpectedtohavesufficienttrainingandcertifications(whenrequiredbytheapplicableauthority)toaccomplishtheworkrequiredinasafemanner.

5 Rev. 1 Sep/13

INTRODUCTION


B. Maintenance Practices

(1) Thepropelleranditscomponentsarehighlyvulnerabletodamagewhiletheyareremovedfromtheengine.Properlyprotectallcomponentsuntiltheyarereinstalled on the engine.

(2) Useonlytheapprovedconsumables,e.g.,cleaningagents,lubricants,etc.

(3) SafeHandlingofPaintsandChemicals

(a) Alwaysusecautionwhenhandlingorbeingexposedtopaintsand/orchemicals during propeller overhaul and maintenance procedures.

(b) Beforeusingpaintorchemicals,alwaysreadthemanufacturerslabelonthecontainerandfollowspecifiedinstructionsandproceduresforstorage,preparation, mixing, and application.

(c) RefertotheproductsMaterialSafetyDataSheet(MSDS)fordetailedinformationaboutphysicalproperties,health,andphysicalhazardsofanychemical.

(4) Observeapplicabletorquevaluesduringmaintenance.

(5) Beforeinstallingthepropellerontheengine,thepropellermustbestaticallybalanced.NewpropellersarestaticallybalancedatHartzellPropellerInc.Overhauledpropellersmustbestaticallybalancedbytheoverhaulfacilitybefore return to service.

NOTE: Dynamicbalanceisrecommended,butmaybeaccomplishedatthediscretionoftheoperator,unlessspecificallyrequiredbytheHovercraftorenginemanufacturer.Dynamicbalancingistobeaccomplishedinaccordancewiththeproceduresandlimitationsin the Maintenance Practices chapter of this manual. Additional proceduresmaybefoundintheHovercraftPropellerMaintenanceManual 301.

(6) Asnecessary,useasoft,non-graphitepencilorcrayontomakeidentifyingmarksoncomponents.

(7) Asapplicable,followmilitarystandardNASMS33540forsafetywireandcotterpingeneralpractices.Use0.025inch(0.64mm)or0.032inch(0.82mm)diameterstainlesssteelsafetywireunlessotherwiseindicated.

6 Rev. 1 Sep/13

INTRODUCTION


CAUTION: DONOTUSEOBSOLETEOROUTDATEDINFORMATION.PERFORMALLINSPECTIONSORWORKINACCORDANCEWITHTHE MOST RECENT REVISION OF THIS MANUAL. INFORMATION CONTAINEDINTHISMANUALMAYBESIGNIFICANTLYCHANGEDFROM EARLIER REVISIONS. USE OF OBSOLETE INFORMATION MAYRESULTINDEATH,SERIOUSBODILYINJURY,AND/ORSUBSTANTIALPROPERTYDAMAGE.FORTHEMOSTRECENTREVISION LEVEL OF THIS MANUAL, CONTACT HARTZELL PROPELLERINC.PRODUCTSUPPORTDEPARTMENT.

(8) Theinformationinthismanualrevisionsupersedesdatainallpreviouslypublished revisions of this manual.

(9) TheHovercraftmanufacturersmanualsshouldbeusedinadditiontotheinformationinthismanualduetopossiblespecialrequirementsforspecificHovercraft applications.

(10) Approvedpaintmustbeappliedtoallcompositeblades.Forinformationconcerning the application of paint, refer to the Maintenance Practices chapter ofthismanual.Operationofbladeswithoutthespecifiedcoatingsandfinishes is not permitted.

7 Rev. 1 Sep/13

INTRODUCTION


4. Component Life and Service

A. Overhaul(MajorPeriodicInspection)

(1) Overhaul(MajorPeriodicInspection)istheperiodicdisassembly,cleaning,inspection,repairingasnecessary,reassembly,andtestingofacomponent.

NOTE: ThroughoutthetextofthispublicationthetermsMajorPeriodicInspection and Overhaul are considered interchangeable.

(2) Theoverhaulintervalisbasedonhoursofservice(operatingtime)oroncalendar time.

(a) Atsuchspecifiedperiods,thepropellerhubassemblyandthebladeassembliesshouldbecompletelydisassembledandinspectedforcracks,wear,corrosion,andotherunusualorabnormalconditions.Asspecified,certainpartsshouldberefinished,andcertainotherpartsshouldbereplaced.

(3) ContacttheHartzellPropellerInc.ProductSupportDepartmentforspecificinformationconcerningoverhaul(majorperiodicinspection).

(4) Forthe5bladeHovercraftpropeller,acalendarlimitandoperationhoursbetweenoverhaulsorMPIis1500hoursor24months,whicheveroccursfirst.Contact the Hartzell Propeller Inc. Product Support department concerning propeller overhaul.

(5) Forthe6bladeHovercraftpropeller,acalendarlimitandoperationhoursbetweenoverhaulsorMPIis1000hoursor24months,whicheveroccursfirst.Contact the Hartzell Propeller Inc. Product Support department concerning propeller overhaul.

B. Rework

(1) Reworkiscorrectionofmajordamagecausedbyphysicalmishaporfailure.

(2) Reworkisdoneonanirregularbasisasnecessaryandrequired.Thepropellermayhavetobere-balancedafterreworkprocedures.

(3) Certainreworkprocedures,suchasshotpeening,mustbeperformedattheHartzellPropellerInc.factoryorinafacilitythathasbeenapprovedbyHartzellPropeller Inc.

(4) Theamount,degree,andextentofmajordamagedeterminewhetherornotacomponentcanbereworkedwithoutoverhaul.

C. Repair

(1) Repairiscorrectionofminordamagecausedduringnormaloperation.Itisdone on an irregular basis, as required.

(2) Theamount,degree,andextentofdamagedeterminewhetherornotacomponentcanberepairedwithoutoverhaul.

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INTRODUCTION


D. ComponentLife

(1) ComponentLifeisexpressedintermsoftotalhoursofservice(TimeSinceNew,TSN)andintermsofhoursofservicesinceoverhaul(TimeSinceOverhaul,TSO).

(2) Bothreferencesarenecessaryindefiningthelifeofthecomponent.Occasionallyapartmaybelifelimited,whichmeansthatitmustbereplacedafteraspecifiedperiodofuse.

(3) OverhaulreturnsthecomponentorassemblytozerohoursTSO(TimeSinceOverhaul),butnottozerohoursTT(TotalTime).

(4) ReworkorrepairwithoutoverhauldoesnotaffectTSOorTT.

E. Propeller Critical Parts

(1) ProceduresinthismanualmayinvolvePropellerCriticalParts.TheseprocedureshavebeensubstantiatedbasedonEngineeringanalysisthatexpectsthisproductwillbeoperatedandmaintainedusingtheproceduresandinspections provided in the ICA for this product. Refer to the Illustrated Parts ListchapterfortheapplicablepropellermodelfortheidentificationofPropellerCritical Parts.

(2) NumerouspropellersystempartscanproduceanaircraftMajororHazardouseffect,eventhoughthosepartsmaynotbeconsideredasPropellerCriticalParts. The operating and maintenance procedures and inspections provided in the ICA for this product are, therefore, expected to be accomplished for all propellersystemparts.

9 Rev. 1 Sep/13

INTRODUCTION


5. Definitions

AbasicunderstandingofthefollowingtermswillassistinmaintainingandoperatingHartzell Propeller Inc. propellersystems.

Term Definition

Annealed ..............................Softening of material due to overexposure to heat

Blade Angle ..........................Measurement of blade airfoil location described as the anglebetweenthebladeairfoilandthesurfacedescribedbypropellerrotation

Brinelling ..............................Adepressioncausedbyfailureofthematerialincompression

Chord ...................................Astraightlinedistancebetweentheleadingandtrailingedges of an airfoil

Constant Force.....................Aforcethatisalwayspresentinsomedegreewhenthepropeller is operating

Constant Speed ....................Apropellersystemthatemploysagoverningdevicetomaintain a selected engine RPM

Corrosion ..............................Gradual material removal or deterioration due to chemical action

Crack .....................................Irregularlyshapedseparationwithinamaterial,sometimesvisibleasanarrowopeningatthesurface

Depression ............................Surfaceareawherethematerialhasbeencompressedbutnot removed

Distortion ...............................Alteration of the original shape or size of a component

Erosion ..................................Gradualwearingawayordeteriorationduetoactionoftheelements

Exposure ...............................Leaving material open to action of the elements

Gouge ...................................Surfaceareawherematerialhasbeenremoved

Horizontal Balance ................Balancebetweenthebladetipandthecenterofthehub

ImpactDamage ....................Damagethatoccurswhenthepropellerbladeorhubassemblystrikes,orisstruckby,anobject

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INTRODUCTION


Nick ......................................Removalofpaintandpossiblyasmallamountofmaterial

Non-AviationCertified ...........Intended for non-aircraft application, such as Hovercraft or Wing-In-Groundeffect(WIG)applications.TheseproductsarecertificatedbyanauthorityotherthanFAA.Thehubandbladeswillbestampedwithanidentificationdifferentfrom, but comparable to TC and PC.

Non-Aviation Experimental ...Intended for non-aircraft application, such as Hovercraft orWing-In-Ground-effect(WIG)applications.Theseproductsarenotcertificatedbyanyauthority.ThereisnoidentificationstampcomparabletoTCandPConthehubsandblades.ExperimentalpartsarenormallystampedwithanXatorneartheendofthepartnumber.

Onspeed ...............................ConditioninwhichtheRPMselectedbythepilotthroughthepropellercontrolleverandtheactualengine(propeller)RPM are equal

Overhaul ...............................Theperiodicdisassembly,inspection,repair,refinish,andreassemblyofapropellerassemblytomaintainairworthiness

Overspeed ............................ConditioninwhichtheRPMofthepropellerorengineexceeds predetermined maximum limits; the condition in whichtheengine(propeller)RPMishigherthantheRPMselectedbythepilotthroughthepropellercontrollever

OverspeedDamage ..............Damagethatoccurswhenthepropellerhubassemblyrotates at a speed greater than the maximum limit for whichitisdesigned

Pitch ......................................SameasBladeAngle

Pitting ....................................Formationofanumberofsmall,irregularlyshapedcavitiesinsurfacematerialcausedbycorrosionorwear

Reversing ..............................ThecapabilityofrotatingbladestoapositiontogeneratereversethrusttoslowtheHovercraftorbackup

Scratch ..................................SameasNick

Superseded ...........................Partsthatareconsideredairworthyforcontinuedoperationbutmaynolongerbeavailable

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INTRODUCTION


Track .....................................In an assembled propeller, a measurement of the location ofthebladetipwithrespecttotheplaneofrotation,usedtoverifyfacealignmentandtocomparebladetiplocationwithrespecttothelocationsoftheotherbladesintheassembly

Underspeed ..........................Theconditioninwhichtheactualengine(propeller)RPMislowerthantheRPMselectedbythepilotthroughthepropeller control lever

Variable Force .......................Aforcethatmaybeappliedorremovedduringpropelleroperation

Vertical Balance ....................Balancebetweentheleadingandtrailingedgesofatwo-bladepropellerwiththebladespositionedvertically

Windmilling ............................TherotationofaHovercraftpropellercausedbyairflowingthroughitwhiletheengineisnotproducingpower

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INTRODUCTION


6. Abbreviations Abbreviation Term

CMM .....................................Craft Maintenance Manual

AN .........................................AirForce-Navy(orArmy-Navy)

COG ......................................Craft on Ground

MCA ......................................MaritimeandCoastguardAgency

ft-lb ........................................Foot-Pound

ICS ........................................InstructionsforContinuedSeaworthiness

ID ..........................................InsideDiameter

in-lb .......................................Inch-Pound

IPS ........................................Inches Per Second

Lbs ........................................Pounds

MIL-X-XXX ............................MilitarySpecification

MPI ........................................MajorPeriodicInspection(Overhaul)

MS .........................................MilitaryStandard

MSDS ....................................MaterialSafetyDataSheet

OD .........................................OutsideDiameter

Nm .......................................Newton-Meters

POH ......................................PilotsOperatingHandbook

PSI ........................................Pounds per Square Inch

RPM ......................................Revolutions per Minute

TBO .......................................TimeBetweenOverhaul

TC .........................................TypeCertificate

TSN .......................................TimeSinceNew

TSO .......................................Time Since Overhaul

13 Rev. 1 Sep/13

INTRODUCTION


7. WarrantyService

A. Ifyoubelieveyouhaveawarrantyclaim,itisnecessarytocontacttheHartzellPropellerInc.sWarrantyAdministrator.TheHartzellPropellerInc.sWarrantyAdministratorwillprovideyouwithaWarranty Applicationform.ItisnecessarytocompletethisformandreturnittotheWarrantyAdministratorforevaluationbefore proceeding with repair or inspection work. Upon receipt of this form, the WarrantyAdministratorwillprovideinstructionsonhowtoproceed.HartzellPropeller Inc. Warrantymaybereachedduringbusinesshours(8:00a.m.through5:00p.m.,UnitedStatesEasternTime)at937-778-4380,ortollfreeat(800)942-7767.HartzellPropeller Inc. WarrantyAdministrationcanalsobereachedbyfaxat (937)[email protected].

NOTE: WhencallingfromoutsidetheUnitedStates,dial(001)beforedialingtheabove telephone numbers.

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INTRODUCTION



1 Rev. 1 Sep/13

DESCRIPTION AND OPERATION


DESCRIPTION AND OPERATION - CONTENTS

1. Functional Description and Operation of Propeller System ................................2-3

2. Description of Composite Blade ........................................................................2-5

Propeller System Components .................................................. Figure 2-1 ..................2-2

Section of Typical Composite Blade .......................................... Figure 2-2 ..................2-4

Basic Components of the Composite Blade .............................. Figure 2-3 ..................2-4

LIST OF FIGURES

Propeller Model Designations..................................................... Table 2-1 ...................2-6

Blade Model Designations .......................................................... Table 2-2 ...................2-7

LIST OF TABLES

2 Rev. 1 Sep/13



Propeller System ComponentsFigure 2-1

Blade

Hub

Blade Retention Bearing

Preload Plate

Lubrication Fitting -

5BladeOnly

Fork

Stub Shaft Flange - 5 Blade Installation

Beta Tube Assembly

Pitch Change Rod

Mounting Bolt

Engine Flange

Mounting Stud

Pitch Change

Rod Spring

Balance Ring

Cylinder

PitchLockBracket

TI-300-001

Anti-rotation Rod

5BladePropellershownforreference

3 Rev. 1 Sep/13



1. FunctionalDescriptionandOperationofPropellerSystem

A. The Hartzell Propeller Inc. Hovercraft propellers consists of the a variable pitch propellerassembly,abetatubeassembly,andabetamanifold.Thepropellerassemblyisadualactingsystem.Thepropellerassemblymaybeasingleactingoradualactingsystem.RefertoTable2-1andTable2-2forpropellermodeldefinitions.

B. Thebetatubeassemblyisconnectedtoahighpressureoilsourceandfittedtothepropellerthroughthebetamanifoldassembly.Whencommandedtochangebladepitch,thebetatubeassemblyismovedtothecorrespondingpositionanddirectshighpressureoiltothepropellerassembly.

C. Thebetamanifoldassemblyisconnectedtothehydraulicoildrainportanddrainstheoilfromthepropellerwhenthepropellerischangingbladepitch.

D. Thepropellerassemblyisconstructedofatwopiecealuminumhubandcompositeblades.

E. Acoverplateandcylindercreateacylindercavitytohousethepiston.

F. Thepistonisconnectedtotheforkthroughapitchchangerod.

G. The direction of oil pressure to one side of the piston corresponds to a movement in thefork,whichinturn,changesthebladeangleofthecompositepropellerblades.

H. Thepropellerassemblyincorporatesapintopermitthebladestobemanuallysetata pre-determined angle. This permits the propeller to provide thrust in the event of a propelleroilsystemfailure.

4 Rev. 1 Sep/13



Section of Typical Composite BladeFigure 2-2

Solid Unidirectional Composite Material

Solid Unidirectional Composite Material

Low-DensityFoam Core

LaminatedLayersof Composite

Material

Basic Components of the Composite BladeFigure 2-3



Composite Material

Retention Laminates

ShankofMetal Blade

Plug

Blade Retention Windings

Metal Blade Plug

Paint

Erosion Shield

NickelLeadingEdge

TI-300-020

TI-300-007TI-300-008

5 Rev. 1 Sep/13



2. DescriptionofCompositeBlade

A. The Hartzell Propeller Inc.compositebladeiscomposedofametalbladeshankretentionsection.Alow-densityfoamcoreismoldedintothemetalbladeshankandsupportsbuilt-uplayersofcompositelaminate(Figure2-2).

B. Anerosionshieldofelectroformednickelisbondedtothebladetoprotectthebladeleading edge from erosion and impact damage.

C. Filamentwindingsofcompositematerialprovidebladeretentionofthebladematerialtotheinternalmetalbladeplug(Figure2-3). The composite laminates that are a structural component of the blade, alsoprovidearetentionloadpathdirectlyunder the bearing for blade retention.

D. Somedesignsuseafilamentwindingontheinboardendoftheerosionshieldtoaidtheretentionoftheerosionshield.Thiswindingissometimesreferredtoasanerosionshieldwindingandshouldnotbeconfusedwiththebladeretentionwindingused to secure the blade material to the internal metal plug.

E. Thecompositebladeisbalancedinthehorizontalplaneduringproductionbyaddingleadwooltoacentrallylocatedbalancetubeinthemetalbladeshankthatmayprotrudeintothebladesfoamcore.

F. Thebladesarepaintedwithafinishcoveringofpainttoprotecttheentirebladefromerosion and damage.

6 Rev. 1 Sep/13



Propeller Model Designations Table 2-1

H M - 6 V 1 - A 1000 A X()

X-Experimental X()-Xwithnumericcharacterindicatesminorchangenotaffectingeligibility

L - Left hand rotation Anyalphacharacternotlistedheredenotesaminorchangenotaffectingeligibility

4Digitnumberdefinesuniqueconfigurationforinstallation

A - Mounting flangetype B-Mountingflangetype

Operating Mode -

Numericcharacterusedinthispositiononlyifprecededby"V" 1-Dualactinghydraulicpitchcontrolusesoiltodecreasepitchand/orincreasepitch 2-Singleactinghydraulicpitchcontrolusesoiltodecreasepitch 3-Singleactinghydraulicpitchcontrolusesoiltodecreasepitch 4-Singleactinghydraulicpitchcontrolusesoiltoincreasepitch

Pitch Type -

F - Fixed Pitch G-GroundAdjustable V-VariablePitch(manuallycontrollableorconstantspeed)

Number of blades

M-Maritime(non-aviation)propellerseries

Hartzell Propeller Inc.

7 Rev. 1 Sep/13



Blade Model Designations Table 2-2

138 M H 91 B - 2 X()

X-Experimental X()-Xwithnumericcharacterindicatesminorchangenotaffectingeligibility

Blank-Originaldesign,nochanges Numberwhenusedindicatesdiameterreductionininches(oraddedtoifpreceededby"+")frombasicdiameter

B - Blade ice protection

Anyothercharacterindicatesadimensionalvariationofthebasicblademodel

Designnumber

Blank-Righthandrotationtractor H - Right hand rotation pusher J-Lefthandtractor L - Left hand rotation pusher C-Counterweightedblades

M-Maritime(non-aviation)bladeseries

Diameterininchesforthebasicblademodel

8 Rev. 1 Sep/13




1 Rev. 1 Sep/13

INSTALLATION AND REMOVAL

OPERATION, MAINTENANCE MANUAL AND LOGBOOK 300

INSTALLATIONANDREMOVAL-CONTENTS

LIST OF FIGURES

LIST OF TABLES

PropellerSystemComponents ...........................................................Figure 3-1 ..........3-6

Alignment of Blade Bearing Split ........................................................Figure 3-2 ........3-11

Position of Preload Plate Cutout.........................................................Figure 3-3 ........3-11

5BladeHubAssembly .......................................................................Figure 3-4A ......3-14

6BladeHubAssembly .......................................................................Figure 3-4B ......3-15

ApplyingSealantBetweentheHubHalves ........................................Figure 3-5 ........3-16

TighteningPreloadPlateSetScrewandJamNut ............................Figure 3-6 ........3-17

Installation of the Blade Seal ..............................................................Figure 3-7 ........3-19

InstallationofHubClampingBoltsandPitchLockBracket ................Figure 3-8 ........3-19

PressureCheckHub ..........................................................................Figure 3-9 ........3-21

Oil-filling6BladePropeller .................................................................Figure 3-10 ......3-24

DeterminingTorqueValueWhenUsingTorquingAdapter .................Figure 3-11 ......3-26

DiagramofTorquingSequenceforPropellerMountingBolts 5Blade-CylinderandEngineFlanges 6Blade-CylinderFlangeOnly .....................................................Figure 3-12 ......3-27

DiagramofTorquingSequenceforPropellerMountingBolts 6 Blade - Engine Flange................................................................Figure 3-12 ......3-28

Special Tools and Equipment .............................................................Table 3-1 ............3-4

Consumable Materials List .................................................................Table 3-2 ............3-5

Torque Values .....................................................................................Table 3-3 ............3-8

O-ringandPropellerMountingHardwareIdentification......................Table 3-4 ............3-9

1. Tools, Consumables, and Expendables..............................................................3-3

2. PropellerAssemblyPre-Installation ....................................................................3-7

3. PropellerAssemblyInstallation .........................................................................3-29

4. PropellerAssemblyRemoval ............................................................................3-32

5. DisassemblyofaPropellerforShipment..........................................................3-33

2 Rev. 1 Sep/13



(Thispageintentionallyleftblank.)

3 Rev. 1 Sep/13



1. Tools, Consumables, and Expendables

A. Thefollowingtools,consumables,andexpendableswillberequiredforpropellerremoval and installation:

(1) Tools

(a) Certaininstructionsthroughoutthismanualrefertotoolsthatwillberequiredforpropellerremovalandinstallation.SpecifictoolsarelistedinTable 3-1, Special Tools and Equipment.

(b) ToolingreferencesappearwiththeprefixTEdirectlyfollowingthetoolnametowhichtheyapply.Forexample,"BladeStandsTE126".

(2) ConsumableMaterials

(a) Certaininstructionsthroughoutthismanualrefertoconsumablematerials.SpecificapprovedmaterialsarelistedTable3-2,ConsumableMaterials.

(b) ThereferencenumbersforconsumablematerialsappearwiththeprefixCMdirectlyfollowingthematerialtowhichtheyapply.Forexample,"SolventCM23".

(3) Expendables

(a) 0.025in(0.64mm)or0.032inch(0.82mm)diameterstainlesssteelsafetywire

(b) O-ring-propellertoengineseal-RefertoTable3-4,O-ringandPropellerMountingHardwareIdentification.

4 Rev. 1 Sep/13



Special Tools and EquipmentTable 3-1

Reference No.

Hartzell Propeller Inc.Part Number

Description

TE97 BST-2960-1 DigitalProtractorTE126 BST-3024 Blade StandsTE155 AST-2877-1 TorqueWrenchAdapterTE159 BST-10007 Threadless Headless PinTE262 EN1901 Propeller SlingTE495 104287 TorqueWrenchTE506 104507 LeakCheckManifold-6BladeTE507 104504 AdapterTE509 105167 CheckCylinder-6BladeTE519 BST-2912-20 Flange Adapter - 6 BladeTE520 BST-2912-21 Flange Adapter - 5 Blade

5 Rev. 1 Sep/13



Consumable Materials ListTable 3-2

Reference No. Hartzell Propeller Inc.Part Number

Description

CM8 A-6741-8 Sealant 3M Scoth Seal, EC800

CM9 A-6741-9 Sealant 3M Scoth Seal, EC801

CM12 A-6741-12-() Lubricant - Aeroshell 5, 6, 7, 22; Royco22CF

CM21 A-6741-21 Loctite 222 CM23 N/A KwikDryStoddardSolventCM46 A-6741-46 Henkel/Loctite,#1,P/N30512CM108 A-6741-108 Lubricant, Starrett, M1CM109 N/A SprayCleanCM118 A-3338-7 MIL-PRF-83483 Anti-Sieze

CompoundCM161 A-6741-161 Sealant,

PRC-DesotaInternational PR1422A-1/1 or PR1440A-1/2

CM210 A-6741-210 Innospec,OilDyeRedB4Liquid

CM257 A-6741-257 Sealant, Silicone, 430 gm, ThreeBond, 1216E430G

CM302 A-6741-302(-1) ShellRotellaT65W-40

6 Rev. 1 Sep/13



Propeller System ComponentsFigure 3-1

Blade

Hub

Blade Retention Bearing

Preload Plate

Lubrication Fitting -

5BladeOnly

Fork

Stub Shaft Flange

Beta Tube Assembly

Pitch Change Rod

Mounting Bolt

Engine Flange

Mounting Stud

Pitch Change

Rod Spring

Balance Ring

Cylinder

PitchLockBracket

Anti-rotation Rod

TI-300-001

5BladePropellershownforreference

PitchLockRing

Blade Seal

7 Rev. 1 Sep/13



2. PropellerAssemblyPre-Installation

A. InspectionofShippingPackage

(1) Examinetheexterioroftheshippingcontainerforsignsofshippingdamage,especiallyattheboxendsaroundeachblade.

(2) Ahole,tear,orcrushedappearanceattheendofthebox(atthepropellertips)mayindicatethepropellerwasdroppedduringshipment,possiblydamagingthe blades.

B. Uncrating

(1) Placethepropellercontaineronafirmsupport.

(2) Removethebandingandanyexternalwoodbracingfromtheshippingcontainer.

(3) Removethebladesfromthecardboardbox.

(4) Removethehubfromthewoodencontainer.

CAUTION: DONOTSTANDTHEPROPELLERONABLADETIP.

(5) Putthepropelleronapaddedsurfacethatsupportstheentirelengthofthepropeller.

(6) Removetheplasticdustcovercupfromthepropellermountingflange,ifinstalled.

C. Inspection after Shipment

(1) Afterremovingthepropellerfromtheshippingcontainer,examinethepropellercomponents for shipping damage.

8 Rev. 1 Sep/13



Torque ValuesTable 3-3

Part Number DescriptionTorque

5 Blade 6 Blade ft-lb in-lb Nm

103093 103093 Preloadsetscrew 13-15 19

103192 1031921/2-20 Thin hex nut,Preloadjamnut 10 14

103137 103137Bolt, 1/4-28, hex head Cylindermountingtohub 12-14 11

103133 103133Cylindermountingringtohub Snug

A-2043-1 A-2043-1 Nut, hub parting line 30 Initial torque 41A-2043-1 A-2043-1 Nut, hub parting line 38-42finaltorque 51-57

A-279 Lubricationfitting Snug

102683 Plug,lubricationfitting Snug

B-3808-3 B-3808-3 Bolt, balance ring 30-36 3.3-4.6A-3527 Nut, propeller mounting

drive shaft to propeller 120-130,Wet 163-176,Wet

104993Bolt, drive shaft to propeller 175-180,Wet 237-244,Wet

B-3347 Bolt, propeller mountingstub to propeller 120-130,Wet 163-176,Wet

C-6474 Bolt, propeller mountingstub to propeller 34-38,Wet 46-51,Wet

103004 103004Pitchchangerodtofork,L.H. Thread 76-84,Wet 103-114,Wet

103067 103067Piston to pitch change rod, L.H. Thread 40-42,Wet 54-57,Wet

B-3384-() B-3384-() Screw,balanceweight 10-12 14-16

B-3384-1H B-3384-1HBolt,1/4-28,(BetaManifoldAss'yHousing) 20 2.3

CAUTION 1: TORQUEVALUESAREBASEDONNON-LUBRICATEDTHREADS,UNLESSSPECIFIEDIN TABLE 3-3, TORQUE VALUES.

CAUTION 2: FORTORQUEREADINGWHENUSINGATORQUEWRENCHADAPTER,REFERTOFIGURE3-9,DETERMININGTORQUEVALUEWHENUSINGATORQUINGADAPTER.

NOTE: Torquetoleranceis10percentunlessotherwisenoted.

9 Rev. 1 Sep/13



PART NUMBER PART DESCRIPTION WHERE USED5 Blade 6 Blade

C-3317-255 C-3317-255 O-ring Hub/cover plateC-3317-239-2 C-3317-378 O-ring MountingflangetodriveshaftC-3317-168 C-3317-170 O-ring Cover plate - outerC-3317-160 C-3317-160 O-ring Cover plate - innerC-3317-425-2 C-3317-425-2 O-ring Piston

C-3317-223-2 C-3317-223-2 O-ring Pitch change rod to cover plateC-3317-341-8 C-3317-341-8 O-ring BladeshankC-3317-322 C-3317-322 O-ring Cylindermtg.flangeC-3317-239-2 O-ring Mountingflangetodriveshaft

andStubshafttocylinder

C-3317-134-2 C-3317-134-2 O-ring Stub shaft/beta manifoldA-1037-4 A-1037-4 3/8-24 Hex Head Bolt Hub clamping boltA-2043-1 A-2043-1 3/8-24Self-lockingHexNut Hub clamping nutB-3834-0632 B-3834-0632 Washer Hubclampingwasher103093 103093 1/2-20OvalPointSetScrew Preload plate103192 103192 1/2-20 Thin Hex Nut Preload plate103137 103137 1/4-28 Hex Head Bolt CylindertoHub103136 103136 1/4WasherSeal Cylindertohub

andCylindertobetamanifold

B-3347 9/16-18 12 pt. Mounting Bolt Stub shaft to propellerA-3257 9/16-18Self-lockingHexNut Driveshafttopropellerflange

104993 Bolt, 5/8-18, 12 point DriveshafttopropellerflangeC-6474 Bolt, 3/8-24, 12 point Stubshafttocylinder

A-2048-2 9/16CountersunkMountingWasher Stubshafttocylinder104994 CountersunkMountingWasher Driveshafttopropeller

103096 Spiral Retainer Ring To secure the seal housingB-3384-1H Bolt, 1/4-28 Betamanifoldass'yhousing

O-ring and Propeller Mounting Hardware Identification Table 3-4

10 Rev. 1 Sep/13



D. ReassemblyProcedureswhenBladesHaveBeenRemovedforShipment

(1) Allbladesareremovedfromthepropellerafterassemblyatthefactorytofacilitate shipment.

(2) Insuchcasesthepropellerhasbeenfullyassembled,tested,inspected,andstaticallybalancedatthefactorybeforebladeremovalandshipment.

(3) Beforestartingreassembly,reviewanyofthefollowinginformationandinstructions that are applicable:

(a) Table3-3,TorqueValues

(b) Table3-4,O-ringandPropellerMountingHardwareIdentification

(c) ApprovedconsumablesinTable3-2,ConsumablesMaterials

(d) CleaningproceduresintheMaintenancePracticeschapterofthismanual

(e) InspectionandcheckproceduresintheInspectionandCheckchapterofthis manual

(f) CheckingbladetrackintheInspectionandCheckchapterofthismanual

(4) Thepropellerhubhasbeenshippedassembled.Disassemblethehubinaccordancewiththefollowingprocedure:

(a) Putthehubontherotatablefixtureoftheassemblytable.

(b) Removecylindermountingboltsandsealwashersthatattachthecylindermountingflange.

(c) Installthreethreadedheadlessalignmentpins,TE159,inthreecylinderattachingholesequallyspaced.

(d) Removethecylinder.

(e) Unscrewandremovethepiston.

(f) Unscrewthepitchchangerod.

(g) Removethecoverplate.

CAUTION: THECAPHEADSCREWSAREINTENTIONALLYLEFTLOOSEINTHECYLINDERMOUNTINGRINGTOFACILITATEALIGNMENTDURINGASSEMBLY.DONOTTIGHTENORREMOVE THEM AT THIS TIME.

(h) Do not removethesmallercapheadscrewsthatsecurethecylindermounting ring to the hub.

(i) Removetheanti-rotationrods.

(j) Removethehubbolts,selflockingnuts,andwashersfromthehub.

(k) Separatethehubhalves.

(l) Removethefork.

11 Rev. 1 Sep/13



Alignment of Blade Bearing SplitFigure 3-2

Position of Preload Plate CutoutFigure 3-3

APS0820

APS832D

Blade bearing split line

90 degrees

Hub parting line

90 degrees

Hub parting line

12 Rev. 1 Sep/13



CAUTION: DONOTREMOVEGREASEFROMTHEBLADESOCKETS.

(5) UsingsolventCM23orequivalent,removealltracesofgreasefromthepartinglineface.Donotremovegreasefromthebladesockets.

(6) UsinggreaseCM12,applyalightlayertothehubbladearmO-ringgroovesbefore installation of the blades.

(7) Locatebladenumberone.

NOTE: Bladeandcorrespondingbladesocketarepre-markedatthefactoryforidentificationduringreassembly.

(8) Carefullyremovethepackagingoverthebladebearing.Anyexcessgreaseremainingonthepackagingshouldbewipedonthebladebearing.

(9) Makesurethatthepreloadsetscrewsandjamnutsareinstalledinthepreloadplatesbeforepropellerassembly.

CAUTION: DONOTREMOVETHEPRELOADSETSCREWS.

(10) UsinggreaseCM12,applyalightlayertoeachbladeO-ring.

CAUTION: MAKESURETHEBLADESEALISINSTALLEDONTHEBLADEANDISNOTTWISTEDWHENINSTALLINGIT.

(11) UsinggreaseCM12,applyalightlayertoeachbladeseal.

(12) Installthebladesealonthebladeoutboardofthepitchlockringwiththenarrowsideofthebladesealtothehub.Donotpermitthebladesealtotwist.

(13) PositionthetwobladeO-ringsonthebladeshank.RefertoTable3-4,O-ringandPropellerMountingHardwareIdentification.

(14) SetupthebladesupportstandTE126,orequivalent,tosupporttheblade.

(a) Placethesupportstandapproximatelyteninches(25.4cm)inboardofwherethebladetipwillbe.

(15) Carefullypositionthebladeintothecorrespondingnumberedsocketofthehub.

(a) MakesurethebladeO-ringsareproperlypositionedinthehubO-ringgrooves.

(16) Rotatethehubsidebearingraceuntiltheracesplitlineislocatedtowardtheblade trailing edge, 90 degrees from the hub parting line. Refer to Figure 3-2.

(17) Asneeded,rotatethepreloadplatesothatthecutoutiscenteredonthehubparting line. Refer to Figure 3-3.

(a) Rotatethebladetothemidpointofitstraveluntilthebladeislyingflatonthe stand.

13 Rev. 1 Sep/13



CAUTION: MAKESURETHATTHECHAMFERSONTHEPRELOADPLATESAREALIGNED.

(18) Repeatsteps2.D.(11)through2.D.(17)forbladenumbertwoifassemblinga5bladepropellerandforbladetwoandthreeifassemblinga6bladepropeller.

(19) Installtheforkontothecamfollowersoftheblades.

(20) Applyanti-seizeCM118tothepitchchangerodandtemporarilythreaditbyhandintotheforkinacounterclockwisedirection(left-handthreads)untilitbottomsoutintothefork.

(21) Makesurethealignmentmarkontheforkisinlinewiththealignmentmarkonthe hub.

(22) Movethebladestoreversepitchbladeangletoraisethefork,sothatthecamfollowerslotsandtheforkareabovethepartinglineofthehub.

(23) Repeatsteps2.D.(11)through2.D.(17)forremainingblades.

CAUTION: MAKESURETHATTHECHAMFERSONTHEPRELOADPLATESAREALIGNED.

(a) Carefullypositiontheremainingbladesintotheenginesidehubhalf.

(b) Inserteachbladecamfollowerintoitsappropriatepositionintheforkandrotate the blade into place.

(24)Afterallbladesareinstalled,rotateeachbladetothemidpointofitstraveluntilthebladeislyingflatonthestand,cambersideup.

(25) MakesurethatthebladeO-rings,refertoTable3-4,O-ringandPropellerMountingHardwareIdentification,areseatedproperlyinthehubgroovesandthateachbladebearingsplitlineislocatedtowardthebladetrailingedge, 90 degrees from the hub parting surface. Refer to Figure 3-2.

NOTE: Ifneeded,useasmoothedgedwoodentoungedepressortocarefullyhelp position and seat the blade O-rings.

14 Rev. 1 Sep/13



5 Blade Hub AssemblyFigure 3-4A

Cover Plate

Cylinder

Pitch Change Rod O-ring


CylinderO-ring

Cover Plate O-ring (Inside)

Cover Plate O-ring

(Outside)

Balance Ring

Bolt

Washer

TI-300-0130

Hub Half

Anti-Rotation Rod

Pitch Change

Rod

Hub Clamping

Bolt

Piston

Washer

PitchLockBracket

Hub Half

Lubrication Plug

Fork

O-ring, Cover Plate to Hub

15 Rev. 1 Sep/13



Cover Plate

Cylinder



CylinderO-ring

Cover Plate O-ring (Inside)

Cover Plate O-ring

(Outside)

Balance Ring

Bolt

Washer

TI-300-0131

Hub Half

Anti-Rotation Rod

Pitch Change

Rod

Hub Clamping

Bolt

Piston

Washer

PitchLockBracket

Hub Half

Lubrication Plug

Fork

O-ring, Cover Plate to Hub

6 Blade Hub AssemblyFigure 3-4B

16 Rev. 1 Sep/13



TI-301-0141

E. HubAssembly

CAUTION: WHENAPPLYINGSILICONESEALANTCM257TOTHEHUBPARTINGLINES,MAKESURETHATEXCESSSILICONESEALANTCM257DOESNOTSEEPINTOTHEHUB/BLADEO-RINGGROOVEWHENTHEHUBCLAMPINGBOLTSARETORQUED.

(1) PutabeadofsiliconesealantCM257onthehubmatingsurfaces.Referto Figure 3-5.

(a) SmooththebeadofsiliconesealantCM257tocoattheentirehubpartinglinesurfaceofthecylindersidehubhalfwithathincoatofsiliconesealantCM257.

(b) Useonlyenoughsiliconesealantonthematingsurfacessothatasmallamountwillbesqueezedoutalongtheentirepartingsurfacewhenthehubnutsareproperlytorqued.

(c) RemoveanyexcesssiliconesealantCM257fromthehub/bladeO-ringgrooves.

(d) Installthecylindersidehubhalfwithin6minutesoftheapplicationofsilicone sealant CM257.

Applying Sealant Between the Hub Halves Figure 3-5

17 Rev. 1 Sep/13



(2) Usingthehubguidebushings,lineupthehubhalvesandseatthecylinderhalfof the hub in place.

(a) MakesurethatthebladeO-ringsareinthehubbladeO-ringgroovesbeforetryingtoseatthehubinplace.

(3) Installtheinnerhubclampingbolts,washers,andselflockingnuts.RefertoTable3-4,O-ringandPropellerMountingHardwareIdentificationforhubclampingbolts,washers,andselflockingnutspartnumbers.

CAUTION: DONOTTORQUETHEHUBCLAMPINGBOLTSATTHISTIME.

(4) Usingastaggeredsequence,tightenthehubclampingnutsuntilsnug.

(5) Movethepropellerbladestothefeatherpositionsothattheforkisonthebottomofthehub.Thiswillprovideroomtopermitthetorquingofthepreloadsetscrews.

(6) Removethepitchchangerod.

(7) RemovethebladestandsTE126,orequivalent.

Tightening Preload Plate Set Screw and Jam Nut Figure 3-6

PitchChangeKnobBracket(720)

PreloadPlate(500)

Nut(510)

TorqueWrenchTE495

TI-301-0139

18 Rev. 1 Sep/13



(8) Setthebladepreload.

WARNING: DONOTATTEMPTTOREUSEAPREVIOUSLYUSEDSETSCREW.

CAUTION: MAKESURETHATTHEPRELOADPLATESAREFULLYSEATED.USINGYOURHAND,MOVETHEBLADESUPANDDOWNINTHEHUBSOCKET.

(a) UsingatorquewrenchTE495,removetheinstalledpreloadsetscrewsandjamnuts.

(b) Thoroughlycoatthethreadsofthepreloadsetscrewswiththreadlockingcompound CM21.

(c) Installthepreloadsetscrewsintothepreloadplatethreads.

(d) UsingatorquewrenchTE495,torqueeachpreloadsetscrewinaccordancewithTable3-3,TorqueValues.RefertoFigure3-6.

(e) Installthepreloadjamnutsontothesetscrews.

(f) UsingtorquewrenchTE495,torquethepreloadjamnutsinaccordancewithTable3-3,TorqueValues.RefertoFigure3-6.

(g) Thebladesmustturnfreelyinthehubaftersettingpreloadwithnoevidence of in-and-out movement.

(9) Usingastaggeredsequence,tightentheinnerhubclampingnutstotheinitialtorque indicated in Table 3-3, Torque Values.

(10) VisuallychecktomakesuresomeofthesiliconesealantCM257hassqueezedoutfrombetweenthehubhalvesatthematingsurfacesbetweeneachblade.

CAUTION: MAKESURETHEHEADEDVALVEPINSARESECURELYINPLACEINTHEPITCHCHANGERODBEFOREINSTALLINGTHEPITCHCHANGEROD.

(11) Carefullythreadthepitchchangerodbyhandintotheforkbyspinningthepitchchangerodunitcounterclockwise(left-handthreads)asfaraspossible.

(a) Ifnecessary,usingthepropellerblades,adjustthepositionoftheforktoseatthepitchchangerodproperly.

NOTE: Thepitchchangerodandforkhaveleft-handthreads.

19 Rev. 1 Sep/13



Installation of the Blade SealFigure 3-7

Installation of Hub Clamping Bolts and Pitch Lock BracketFigure 3-8

Blade

BladeSeal(240)PitchLockRing

TI-300-004

Propeller Hub

PitchLockBracket(230)

Washer(220)

Bolt(220)

NarrowEdgeoftheBladeSeal(240)

PitchLockRing

20 Rev. 1 Sep/13



(12) Rotatethebladesfromreversetofullforwardtomakesurefulltravelcanbeachieved.

(a) UsingadigitalprotractorTE97,zeroitoutonthecylindermountingflange.

(b) Lineuptheprotractorwiththereferencetapeontheblade.

(c) Checkthetotalbladetravelfromfullforwardtofullreverse.

1 Acceptablebladetoleranceatfullforwardpitchis35degrees +/-5degrees.

2 Acceptable blade tolerance at full reverse pitch is -35 degrees +/-5degrees.

(d) Iffulltravelisnotachieved,removethecylindersidehubhalfandfindthesource of the problem.

(13) TightenthehubclampingnutstothefinaltorqueindicatedinTable3-3,TorqueValues.

(14) Usingsolvent,removeexcesssiliconesealantfromtheseallinebetweenthehub mating surfaces.

(15) Installapitchlockbracketoneachhubsocket.RefertoFigure3-7and Figure 3-8.

(16) Installawasherundereachendofthepitchlockbracket.RefertoFigure3-7.

(17) Inserttheremaininghubclampinghubboltsandwashers.

(18) Installthehubclampingself-lockingnutsandwashersonthehubbolts.

(19) Tightenthehubclampingself-lockingnutstotheinitialtorqueindicatedin Table3-3,TorqueValues,usingastaggeredsequencetomakesurethatauniformpull-downonthehubhalves.

(20) Usingastaggeredsequence,torquethehubclampingselflockingnutstothefinaltorqueindicatedinTable3-3,TorqueValues.

(21) Movethebladesealbetweenthepitchlockringandthehub.Makesurethatthewidesideofthebladesealisnexttothepitchlockring.RefertoFigure3-8.

NOTE: Donotpermitthebladesealtotwist.

(22) Rotatethebladestofullforward,sothattheforkrestsonthehub.

(23) Makesurethatthebladesturnfreelyinthehubaftersettingpreloadandafterfinaltorqueofthehubclampingnutswithnoevidenceofin-and-outmovement.

(24) Rotatethebladestothereverseposition,towardthetopofthehub.

21 Rev. 1 Sep/13



LeakCheckManifold TE506

Adapter TE507

Pitch Change Rod

CheckCylinderTE509

Cover Plate

Pressure Check HubFigure 3-9

22 Rev. 1 Sep/13



(25) Putthesmallendoftheanti-rotationrodinplaceonthefork.

(a) Makesurethattherodsengageintheenginesidehubhalf.

(b) ApplyasmallamountoflubricantCM12onthetopofeachanti-rotationrod.

(c) Installaspaceroneachanti-rotationrod.

(26) Installthreaded,headlessalignmentpinsTE159throughthehubunitandintothecylindermountingring.

(27) Tightenthethreaded,headlessalignmentpinsTE159untilsnug.

(28) UsinggreaseCM12,applyalightlayertotheO-ringonthesideofthecoverplatethatwillseatbetweenthehubandthecoverplate.

(29) UsinggreaseCM12,applyalightlayertotheO-ringinthehubthatisbetweenthe hub and the cover plate.

(30) Rotatethebladepitchtoapproximately3/4reversepitch.Makesurethattheanti-rotation rods do not move.

(31) Alignthecoverplatemarkingtothemarkingonthehub.(Themarkswillbemadebythemanufacturer.)

CAUTION: IFTHEGAPBETWEENTHECOVERPLATEANDTHEHUBISGREATERTHAN0.100INCH,(2.54MM)DONOTATTEMPTTOTORQUETHEASSEMBLYSCREWS.DAMAGETOTHECOMPONENTSMAYRESULT.

(32) Installthecoverplateoverthethreaded,headlessalignmentpinsTE159untilitiswithin0.100inch(2.54mm)ofthehubsurface.

(33) InstalltheO-ringonthefacesideofthecoverplate.

(34) InstallthecheckcylindertoolTE509onthecoverplate.RefertoFigure3-9.

(35) Usingtwo(2)boltsandtwo(2)sealwashers,attachthecheckcylindertoolTE509 to the cover plate.

(36) Removethethreaded,headlessalignmentpinsTE159.

(37) Usingtheremainingboltsandsealwashers,attachthecheckcylindertoolTE509 to the cover plate.

(38) Tightenthebolts,usingastaggeredpattern,untilthecoverplateisflushwiththe hub. Refer to Figure 3-9

23 Rev. 1 Sep/13



(39) Performapressurecheck-6BladeOnly

(a) InstalltheleakcheckmanifoldTE506withadapterTE507tothecheckcylindertoolTE509.

(b) Apply50PSI(3.44Bar)airpressurethroughtheleakcheck manifold TE506.

(c) Permitthepressuretostabilizefor5minutes.

(d) Aminimumof45PSI(3.10Bar)mustbemaintained.

NOTE: Pressurewilldrop,butmustmaintainaminimumof45psi.

(e) Ifaminimumof45PSI(3.10Bar)isnotmaintained,reapply50PSI (3.44Bar)andusingleakdetectorCM122troubleshoottheleak.

(f) Ifaminimumof45PSI(3.10Bar)ismaintained,removetheleakcheckmanifold TE506 and adapter TE507.

(g) RemovethecheckcylindertoolTE509,thetwo(2)bolts,andtwo(2)washers.

(h) Installthetwo(2)threaded,headlessalignmentpinsTE159.

(i) Removetheremainingboltsandwashers.

(40) TorquethepitchchangerodinaccordancewithTable3-3,TorqueValues.

(41) StretchtheO-ringandinstalltheO-ringintheIDofthecoverplatebetweenthecylinderandthecoverplate.

NOTE: To prevent the O-ring from getting cut during installation of the cylinder,stretchtheO-ringbeforeinstallinginthegroove.

(42) MakesurethattheO-ringiscompletelyseatedintheO-ringgroove.

(a) IftheO-ringisnot100%seatedinthegroove,removetheO-ringandrepeat the stretch.

(b) IftheO-ringcannotbe100%seatedinthegroove,replacetheO-ring.

(43) Applyanti-seizeCM118totheexternalthreadsofthepitchchangerod.

CAUTION: MAKESURETHEWRENCHINGFLATSONTHEPISTONARETOWARDSTHETOPWHENINSTALLINGITOVERTHEPITCHCHANGEROD.

(44) Installthepistonoverthepitchchangerod,wrenching-flatstowardsthetop.

NOTE: The piston has left-handed threads.

(45) TorquethepistoninaccordancewithTable3-3,TorqueValues.

24 Rev. 1 Sep/13



Red-DyedOil

Cylinder

Pitch Change Rod

MaskingMaterialSealant, CM8 or CM9

Oil-filling 6 Blade PropellerFigure 3-10

25 Rev. 1 Sep/13



CAUTION: MAKESURETHEO-RINGIS100%SEATEDINTHEO-RINGGROOVEBEFOREINSTALLATIONOFTHECYINDER.

(46) Carefullyaligntheboltholesinthecylinderoverthealignmentpins.

(47) Attachthecylindertothehubwithwashersandbolts,evenlyspaced.RefertoTable3-4,O-ringandPropellerMountingHardwareIdentification.

(48) Tightentheboltsuntilsnug.

(49) Removethethreaded,headlessalignmentpinsTE159.

(50) Installtheremainingwashersandbolts,excepttwo.

(51) TorquethecylindermountingboltsinaccordancewithTable3-3,TorqueValues.

(52) Checkthebladetravel

(a) UsingadigitalprotractorTE97,zeroitoutonthecylindermountingflange.

(b) Lineuptheprotractorwiththereferencetapeontheblade.

(c) Checkthetotalbladetravelfromfullforwardtofullreverse.

1 Acceptablebladetoleranceatfullforwardpitchis35degrees +/-5degrees.

2 Acceptable blade tolerance at full reverse pitch is -35 degrees +/-5degrees.

(53) Sealingthepartinglinesbetweenthehub,coverplate,andcylinder-6BladeOnly

(a) Usingmaskingmaterial,masktheareaoutsideoftheseamsbetweenthecoverplate,thecylindermountingflange,andthehub.

(b) ApplysealantCM8orCM9,totheedgesofthecoverplateandthecylindermountingflange.

(c) Removethemaskingmaterial.

(54) Oilfillthehub-6BladeOnly

(a) Usingmaskingmaterial,masktheedgesofthecylindermountingflangetopreventred-dyedoilfromleakingontothehubsurfaces.

(b) Mix3.75quartsofoilCM302andreddyeCM210toaratioof256to1.

(c) Usingoneofthecylinderattachingboltholeswithoutaboltandwasherinstalled,insertthered-dyedoilintothehubcavity.

(d) Removethemaskingmaterial.

(e) Usingsolvent,removeanyexcessred-dyedoilfromthethreadsofthebolthole.

26 Rev. 1 Sep/13



(actualtorquerequired)X(torquewrenchlength) Torquewrenchreading(torquewrenchlength)+(lengthofadapter) = toachieverequiredactual torque

Determining Torque Value When Using Torquing Adapter Figure 3-11

APS0212A

0.50 foot(152.0mm)

1.00 Ft.(305.0mm)

Standard Torque Wrench

Torquing Adapter

100ft-lb(136Nm)x1ft.(305mm)1.00ft.(305.0mm)+0.50ft.(152.0mm)

readingontorquewrenchwith6-inch(152.0mm)

adapter for actual torque of100ft-lb(136Nm)

EXAMPLE:

= < 66.7 ft-lb(90Nm)

Thecorrectionshownisforanadapterthatisalignedwiththecenterlineofthetorquewrench.Iftheadapterisangled90degreesrelativetothetorquewrenchcenterline,thetorquewrenchreadingandactualtorqueappliedwillbeequal.

27 Rev. 1 Sep/13



Diagram of Torquing Sequence for Propeller Mounting Bolts5 Blade - Cylinder and Engine Flanges

6 Blade - Cylinder Flange OnlyFigure 3-12 (1 of 2)

SEQUENCE A SEQUENCE B UseSequenceAforstepsoneandtwo. UseSequenceBforstepthree.Step 1-Torqueallboltsto40ft-lbs(54Nm). Step 3-TorqueallboltsinaccordancewithStep 2-Torqueallboltsto80ft-lbs(108Nm). Table3-1.

SEQUENCE A

TI-300-016

SEQUENCE B

TI-300-016

1

6

7

8

5 4

3

2

8 4

2

6

73

1

5

28 Rev. 1 Sep/13



Diagram of Torquing Sequence for Propeller Mounting Bolts 6 Blade - Engine FlangeFigure 3-12 (Page 2 of 2)

SEQUENCE A SEQUENCE B UseSequenceAforstepsoneandtwo. UseSequenceBforstepthree.Step 1-Torqueallboltsto40ft-lbs(54Nm). Step 3-TorqueallboltsinaccordancewithStep 2-Torqueallboltsto80ft-lbs(108Nm). Table3-1.

SEQUENCE B

SEQUENCE A

5

6

24

8

12

15

13

916

11

73

1

10

14

2

10

98

7

6

5

4

313

14

1516

1

11

12

TI-300-104972

TI-300-104972

29 Rev. 1 Sep/13



(f) Installthetwoboltsandwashersintheremainingcylinderattachingholes.

(g) TorquetheboltsinaccordancewithTable3-3,TorqueValues.

(h) Safetythecylinder/coverplateboltswith0.025inch(0.64mm)or 0.032inch(0.82mm)stainlesssteelsafetywire.

3. PropellerAssemblyInstallation

A. Propeller Installation

CAUTION 1: DONOTUSEMETHYL-ETHYL-KETONE(MEK)TOCLEANPROPELLERSURFACESORBLADEPARTS.MEKCANWEAKENPAINTANDSEALANTSUSEDONTHEPROPELLER.

CAUTION 2: SURFACESMUSTBECOMPLETELYCLEANEDTOAVOIDFOREIGNOBJECTDAMAGETOTHEHUBANDFLANGEMATINGSURFACES.

(1) UsingsolventCM23,cleanthepropellerflanges,stubshaftflange,anddriveshaftflangeofoilanddirt.

(2) PermitsolventCM23todry.

(3) Lubricateandinstalloneeachofthemanufacturer'ssuppliedO-ringsonthedriveshaftflangeandonthestubshaftflange.

(4) InstallthepreviouslyremovedHovercraftstubshaftontothecylindermountingflangeinaccordancewithHovercraftmanufacturer'sinstructions.

(5) Installthewashersandtheboltsonthestubshaftflangeandtightenina cross-wisepattern.RefertoTable3-4,O-ringandPropellerMountingHardwareIdentificationformountinghardware.

(6) UseatorquewrenchandatorquewrenchadaptorTE155orequivalenttotorqueallboltsinsequencesandstepsshowninFigure3-12.Referto Table 3-3, Torque Values and Figure 3-11 to determine the proper torque value.

(7) Safetywiretheboltswith0.025in(0.64mm)or0.032inch(0.82mm)stainlesssteelsafetywire.

(8) InstallthedriveshaftontothepropellerassemblyinaccordancewithHovercraftmanufacturer's instructions.

(9) Installthewashersandthelocknutsonthedriveshaftandtightenina cross-wisepattern.RefertoTable3-4,O-ringandPropellerMountingHardwareIdentificationformountinghardware.

(10) TorquethelocknutsinsequencesandstepsshowninFigure3-12, in accordancewithTable3-3,TorqueValues.

30 Rev. 1 Sep/13



WARNING: MAKESURETHATANYSLINGUSEDRATEDUPTO800LBS (363KG)TOSUPPORTTHEWEIGHTOFTHEPROPELLERASSEMBLYDURINGINSTALLATION.

CAUTION: EXTREMECAREMUSTBETAKENWHENINSTALLINGTHEPROPELLERONTHEHOVERCRAFTTOPREVENTDAMAGETOTHESHAFTAND/ORMOUNTINGSTUDSANDBLADES.

(11) Installthedriveshaft,propeller,andstubshaftassemblyontotheHovercraftinaccordancewiththeHovercraftmanufacturer'sinstructions.

B.BetaManifoldAssemblyInstallation

(1) Ifnotalreadyinstalled,applyathincoatingofoiltothebetamanifoldassembly O-rings,refertoTable3-4,O-ringandPropellerMountingHardwareIdentification,andinstalltheminthegroovesofthebetamanifoldsupportassembly.

(2) Carefullycleantheinnersideofthestubshaftwithsolvent.

(3) Permitthesolventtodry.

(4) Applyathincoatofaviationgradeengineoiltothebetamanifoldassembly.

(5) Withthehousingsealandspiralringremoved,slidethebetamanifoldassemblyontothepropellerstubshaft.

(6) Aligntheattachmentholesinthestubshaftwiththeholesinthebetamanifoldassembly.

(7) ApplysealantCM46tothewasherandscrewandattachthebetamanifoldassembly.RefertoTable3-4,O-ringandPropellerMountingHardwareIdentification.

(8) TorquetheboltsinaccordancewithTable3-3,TorqueValues.

(9) Safetytheboltswith0.025inch(0.64mm)safetywire.

CAUTION: MAKESURETHESEALHOUSINGISINSTALLEDCHAMFERSIDEUP.

(10) Applyathincoatofaviationgradeengineoiltothesealhousing(notaHartzellPropellerInc.part)andcarefullyslideitintoposition,chamfersideup.

(11) Securethesleevewiththespiralretainerring,refertoTable3-4,O-ringandPropellerMountingHardwareIdentification.

(12) AttachthedrainhosetothemanifoldinaccordancewiththeHovercraftmanufacturer's instructions.

31 Rev. 1 Sep/13



C. Beta Tube Installation

(1) Preparethebetatubeforinstallation.

CAUTION: USECARETOAVOIDSCRATCHINGORDAMAGINGTHEBETATUBEWHILEINSTALLINGIT.

(a) Removethecoverfromthebetatube.

(b) UsingsolventCM23,cleanthebetatube.

(c) PermitthesolventCM23todry.

(d) Applyathincoatingofaviationgradeengineoilovertheentirelengthofthe beta tube.

CAUTION: THEPROPELLERMUSTNOTREACHTHEINTERNALHARDSTOPSDURINGNORMALOPERATIONOFTHEPROPELLER.THEMAXIMUMPITCHMUSTBELIMITEDBYTHETRAVELOFTHE BETA TUBE.

(2) Beforeoperatingthepropeller,turnthebladesseveraltimesbyhandfromreversepitchtoforwardpitchpositiontomakesurethebladeswillturnfreely.

(3) Movethebladestoflatpitch.

(4) Installthebetatubeintothebetamanifoldassemblyandmoveitinandout,rotateittomakesureitmoveswithnobinding.

(5) ConnectthebetatubetothelinkageinaccordancewiththeHovercraftmanufacturer's instructions.

CAUTION: USECARENOTTOBENDORDAMAGETHEBETATUBEWHILEPERFORMINGHYDRAULICCONNECTIONS.

(6) CompleteallnecessaryhydraulicconnectionsinaccordancewiththeHovercraft manufacturer's instructions.

D. PropellerOperation

WARNING1: BEFOREOPERATINGTHEPROPELLER,CHECKALLBOLTS,SCREWS,ANDNUTSFORPROPERTORQUEANDSECURETHEHOVERCRAFTINACCORDANCEWITHTHEHOVERCRAFTMANUFACTURER'S INSTRUCTIONS.

WARNING2: MAKESUREOFTHESAFETYOFPERSONNELANDCLEARTHEDECKINFRONTOFTHEPROPELLERBEFOREOPERATINGTHEHOVERCRAFT.

CAUTION: MAKESURETHEPRESETHYDRAULICPRESSUREISATTHECORRECT LEVEL BEFORE OPERATING THE HOVERCRAFT ENGINE.

32 Rev. 1 Sep/13



4. PropellerAssemblyRemoval

A. Beta Tube Removal

CAUTION: USECARENOTTOBENDORDAMAGETHEBETATUBEWHILEDISCONNECTINGHYDRAULICCONNECTIONS.

(1) DisconnectallnecessaryhydraulicconnectionsinaccordancewiththeHovercraft manufacturer's instructions.

(2) DisconnectthebetatubefromthelinkageinaccordancewiththeHovercraftmanufacturer's instructions.

(3) Removethebetatube.

B. Beta Manifold Removal

(1) Removeanddiscardthespiralretainerringthatsecuresthesealhousing.

(2) Removethesealhousing.

(3) Removeanddiscardthescrewsandwashersattachingthebetamanifoldassembly.

(4) Removethebetamanifoldassembly.

C. Propeller Removal

WARNING: MAKESURETHESLINGISRATEDUPTO800LBS(363KG)TOSUPPORTTHEWEIGHTOFTHEPROPELLERASSEMBLYDURINGREMOVAL.

CAUTION: EXTREMECAREMUSTBETAKENWHENREMOVINGTHEPROPELLERONTHEHOVERCRAFTTOPREVENTDAMAGETOTHESHAFTAND/ORMOUNTINGSTUDSANDBLADES.

(1) Withthedriveshaftandstubshaftattached,removethepropellerassemblyfrom the Hovercraft.

(2) Removethesafetywirefromtheboltsonthestubshaft.

(3) Removeanddiscardtheboltsandwashersfromthestubshaft.

(4) Removeanddiscardthelocknutsandwashersfromthedriveshaft.

(5) RemovethedriveshaftinaccordancewiththeHovercraftmanufacturer'sinstructions.

(6) Withapropellerslingandmobilehoist,carefullyremovethepropellerassemblyfrom the stub shaft.

(7) Placethepropelleronasuitablecartfortransportation.

33 Rev. 1 Sep/13



5. DisassemblyofaPropeller for Shipment

A. Place the propeller on the build bench or stand.

B. Removeanddiscardthesafetywirefromthecylindermountingbolts.

C. Removethecylindermountingboltsfromthehub.

CAUTION: USECAUTIONWHENREMOVINGTHECYLINDERFROMTHECOVERPLATE.EXCESSOILMAYSPILLOUT.

D. Removethecylinderfromthecoverplate.

E. Installfour(4)headlesspinsinthecoverplate,evenlyspaced.

F. Rotate the blades to reverse pitch to expose the piston.

G. Breakthetorqueonthepiston.

H. Remove the piston.

I. Removethepropellerfromthebuildstandandplacethepropellerassemblyoveralargebucketorcontainer.

J. Breakthetorqueonthepitchchangerod.

K. Removethepitchchangerodandpermittheoiltodrainintothelargebucketorcontainer.

L. Place the propeller on the build bench stand.

M. Remove the headless pins.

N. Usingarubberhammer,putadelrinwedgebetweenthecoverplateandhubandgentlytapthewedgetoremovethecoverplate.

O. Remove the anti-rotation rods.

P. Movethebladestothefullforwardposition.

Q. Loosenthejamjutsandsetscrewsonthepreloadplate.

R. Movethebladestoflatpitch.

S. Put the blade stands TE126, or equivalent, in place to support the blades.

T. Remove the inner hub clamping bolts.

U. Removethehubclampingboltsandpitchlockbrackets.

V. Removethecylindersidehubhalf.

W. Removetwoblades.

(1) Carefullywraportapethebladeshankofeachbladetokeepthebearingsandraces together.

X. Removethefork.

34 Rev. 1 Sep/13



Y. Removetheremainingblades.

(1) Carefullywraportapethebladeshankofeachbladetokeepthebearingsandraces together.

Z. Putaroundcardboardtemplatepieceineachbladesocketofthehub.

AA.Installtheforkinsidethehub.

AB.Puttheanti-rotationrodsintheforktoholditinplace.

AC.Attachthecylindersidehubhalf.

AD.Installtheinnerhubboltsinthehubandtightenuntiljustsnug.

AE.Installthecoverplateonthehub,flushwiththehub.

AF. Install the pitch change rod.

AG.Installthepiston(left-handthreads).

AH.Turnthepitchchangerod(left-handthreads)untiltherodbottomsoutonthefork.

AI. Installthecylinder.

AJ. Installthecylindermountingboltsandtightenuntilsnug.

AK.Installallremaininghubboltsandtightenuntilsnug.

AL.Puttheremainingcomponentsinabagandtagaccordingly.

AM.Carefullypackageallcomponentsforshipment.

1 Rev. 1 Sep/13

TESTING AND TROUBLESHOOTING


TESTINGANDTROUBLESHOOTING-CONTENTS

1. Operational Tests ................................................................................................4-3

A. Initial Run-Up.................................................................................................4-3

B. Post-RunCheck ............................................................................................4-3

2. Troubleshooting ..................................................................................................4-4

A. Surging ..........................................................................................................4-4

B. Pitch Change Sluggish ..................................................................................4-5

C. Loss of Thrust ................................................................................................4-5

D. Vibration ........................................................................................................4-6

E. OilorGreaseLeakage ..................................................................................4-7

LIST OF FIGURES

PitchLockKit ............................................................................. Figure 4-1 ..................4-4

2 Rev. 1 Sep/13




3 Rev. 1 Sep/13



1. Operational Tests

WARNING: REFER TO THE HOVERCRAFT MAINTENANCE MANUAL FOR ADDITIONALPROCEDURESTHATMAYBEREQUIREDAFTERPROPELLER INSTALLATION.

A. Initial Run-Up

(1) Followingpropellerinstallation,andbeforeuse,thepropellerhydraulicsystemmustbepurgedofairandproperoperationverified.

(2) Performenginestartandwarm-upinaccordancewiththeHovercraftmanufacturer's operating instructions.

NOTE: Airtrappedinthepropellerhydrauliccylinderwillcausepitchcontroltobeimpreciseandmayresultinpropellersurging.

(3) Cyclethepropellercontrolthroughoutitsoperatingbladeanglerangefromreverseorlow,tohigh(Hovercraftmanufacturer'soperatinginstructions).

(4) Repeatthisprocedureatleastthreetimestopurgeairfromthepropellerhydraulicsystemandtointroducewarmedoiltothecylinder.

(5) Verifyproperoperationfromreversepitchtoforwardpitchandthroughouttheoperating range.

(6) ShutdowntheengineinaccordancewiththeHovercraftmanufacturer'soperating instructions.

B. Post-RunCheck

(1) Afterengineshutdown,checkthepropellerforsignsofengineoilleakage.

4 Rev. 1 Sep/13



2. Troubleshooting

A. Surging

(1) Surgingischaracterizedbyalargeincrease/decreaseinenginespeed,followedbyareturntosetspeedafteroneortwooccurrences.

(a) Checkfortrappedairinthepropeller

1 Performsteps1.A.(1)through1.A.(6)undertheOperationalTestssection in this chapter to release trapped air from the propeller.

(b) Checkforexcessivefriction.Ifpresent:

1 Inspectthebladeretentionsystem.

(c) Checktachometerforoscillation.Ifpresent:

1 Inspect the tachometer and drive.

(d) Checkforsludgeanddirtdeposits.

1 Inspectandcleanthepropeller,betavalve,cylinder,andoiltubes.

(e) Checktheconnectionfromthebetavalvetotheactuator.

Pitch Lock KitFigure 4-1

PitchLockBracket PitchLock

Hole

LockingBalls

PitchLockPin

WitnessHoleTI-300-002

5 Rev. 1 Sep/13



B. Pitch Change Sluggish

(1) Inspectthebladeretentionsystemforexcessivefriction.

(2) Checktheoilpressureandflow(forlowpressure).

(a) Inspecttheoilsupplyandoiltransferopenings.

(3) Inspectthebetatubepassagesfordirtdeposits.

C. Loss of Thrust

(1) Inspectthehydraulicsystemforproperfunction.

WARNING: HOVERCRAFTOPERATIONWITHTHEPITCHLOCKKITINSTALLEDWILLNOTPERMITTHRUSTREVERSINGFUNCTIONTOSLOWTHEVEHICLE.

(a) Ifthehydraulicpropellerpitchcontrolsystemhasfailed,installthepitchlockkitstolockthepropellerintoasinglepitch,allowingarestrictedmodeof operation. Refer to Figure 4-1.

(1) Shutdownpropellerthrustengines.

(2) Removeanyice(ordebris)in/overpitchlockholes.

(3) Manuallyforcethepitchofthepropellerbladestoapositionwherethepitchlockbracketholelinesupwiththeholeinthebladering.Thismayrequiretwocrewmentoeachsimultaneouslyapplyforcetoablade.[Takecarenottodamageleadingortrailingedgesoftheblade].

(4) Installonepitchlockpinintoeachbladebydepressingandholdingthebuttononthepitchlockpinwhileinsertingintothepitchlockhole.Themountingdepthofthepiniswherethelockingballsarelinedupinthewitnessholeinthebracket.

(5) Pulleachpitchlockpintocheckthatthelockingballsareengagedintothewitnesshole.

(6) Re-startpropellerthrustengines.

(7) OperateHovercraftpropellerthrustengineswithintheirlimitsofRPMrange.AllowsufficientdistancetoslowandmaneuvertheHovercraft.

6 Rev. 1 Sep/13



D. Vibration

WARNING: ABNORMALVIBRATIONCANBEANINDICATIONOFAFAILINGPROPELLERBLADEORBLADERETENTIONCOMPONENT.BLADESEPARATIONCANRESULTINACATASTROPHICACCIDENT.

CAUTION: ANYVIBRATIONTHATCANBEDESCRIBEDASAPPEARINGSUDDENLY,ORISACCOMPANIEDBYUNEXPLAINEDGREASELEAKAGE,SHOULDBEINVESTIGATEDIMMEDIATELYBEFOREFURTHER HOVERCRAFT OPERATION.

(1) VibrationproblemsduetopropellersystemimbalancearenormallyfeltthroughouttheRPMrange,withtheintensityofvibrationincreasingwithRPM.

(2) Check:

(a) Controlsurfacesandexhaustsystem,etc.forexcessiveplay,whichmaybe causing vibration unrelated to the propeller

(b) Unevenlubricationofthepropeller

(c) Properengine/propellerflangemating

(d) Bladetrack(RefertotheInspectionandCheckchapterofthismanualforprocedure.)

(e) Staticbalance

(f) Airfoilprofileidenticalbetweenblades

1 Contact the Hartzell Propeller Inc. Product Support department for additional inspection criteria.

(g) Hubandbladesfordamageorcracking

(h) Greaseoroilleakagefromaseeminglysolidsurfaceofthehuborblade

(i) Bladedelamination

NOTE: Dynamicbalancingisrecommendedafterinstallingorperformingmaintenanceonapropeller.Whilethisisnormallyanoptionaltask,itmayrequiretheengineorHovercraftmanufacturertomakecertainthepropeller/enginecombinationisbalancedproperlybeforeoperation.RefertotheengineorHovercraft manuals, and the Maintenance Practices chapter of this manual.

7 Rev. 1 Sep/13



E. OilorGreaseLeakage

(1) Anewpropellermayleakslightlyduringthefirstseveralhoursofoperation.ThisleakagemaybecausedbytheseatingofsealsandO-rings,andtheslingingoflubricantsusedduringassembly.Suchleakageshouldceasewithinthefirsttenhoursofoperation.

CAUTION: GREASELEAKAGETHATCANBEDESCRIBEDASEXCESSIVEANDAPPEARINGSUDDENLY,ESPECIALLYWHENACCOMPANIEDBYVIBRATION,SHOULDBEINVESTIGATEDIMMEDIATELYBEFOREFURTHEROPERATIONOFTHEHOVERCRAFT.

(2) GreaseLeakage-5BladeOnly-ProbableCause:

(a) Improperlytorquedorlooselubricationfitting

(b) Defectivelubricationfitting

(c) Faultysealatthebladesocketbetweenthebladeandhub-ContacttheHartzell Propeller Inc. Product Support department for replacement of the seal.

(d) Crackedhub-Acrackedhubisoftenindicatedbygreaseemergingfromaseeminglysolidsurface,especiallyinthebladearm.ContacttheHartzellPropeller Inc. Product Support department.

(3) OilLeakage-ProbableCause

(a) Leaksbetweenthehubhalves-Faultyseal(s)-ContacttheHartzellPropeller Inc. Product Support department for replacement of the seal.

(b) Leaksbetweenthehubandengine-Faultyormissingsealbetweenthepropellerhubandtheengineflange.

8 Rev. 1 Sep/13




1 Rev. 1 Sep/13

INSPECTION AND CHECK


INSPECTIONANDCHECK-CONTENTS

LIST OF FIGURES

1. Pre-Operation Inspection ....................................................................................5-3

2. Required Periodic Inspections and Maintenance ...............................................5-4

A. Periodic Inspections .....................................................................................5-4

B. Overhaul Periods...........................................................................................5-4

3. Inspection Procedures ........................................................................................5-5

4. Special Inspections ...........................................................................................5-11

A. ForeignObjectStrike...................................................................................5-11

B. Overspeed ...................................................................................................5-12

C. FireDamageorHeatDamage ....................................................................5-13

5. PackagingandStorage ....................................................................................5-13

A. Overview .....................................................................................................5-13

B. Guidelines ...................................................................................................5-14

6. ActivatingaPropellerAssemblyAfterLongTermStorage ...............................5-16

A. General........................................................................................................5-16

B. Ifstorageperiodislessthantwo(2)years:.................................................5-16

C. Ifstorageexceedstwo(2)years: ..................................................................5-17

CheckingBladeTrack................................................................ Figure 5-1 ..................5-8

BladePlay ................................................................................. Figure 5-2 ..................5-8

Engine Overspeed Limits .............................

hovercraft owner's manual 300 - hartzell...

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