HARTZELL PROPELLER INC. One Propeller Place Piqua, Ohio...

MANUAL REVISION TRANSMITTALMANUAL 173 (61-10-73)

Composite Spinner Field Maintenance and Minor Repair ManualREVISION 2 dated October 2015

Attached is a copy of Revision 2 to Hartzell Propeller Inc. Manual 173 Page Control Chart for Revision 2:Remove Insert Chapter/Page No. Chapter/Page No.COVER COVER Cover and Inside Cover Cover and Inside Cover

REVISION HIGHLIGHTS REVISION HIGHLIGHTS pages 1 and 2 pages 1 and 2

LIST OF EFFECTIVE PAGES LIST OF EFFECTIVE PAGES pages 1 and 2 pages 1 and 2

INTRODUCTION INTRODUCTION pages 3 thru 6 pages 3 thru 6

MINOR REPAIR MINOR REPAIR pages 2-4.1 and 2-4.2 pages 2-4.1 and 2-4.2 pages 2-7 and 2-8 pages 2-7 and 2-8 pages 2-25 and 2-26 pages 2-25 and 2-26

FINISH PROCEDURES FINISH PROCEDURES pages 3-1 and 3-2 pages 3-1 and 3-2 pages 3-5 thru 3-10 pages 3-5 thru 3-10 pages 3-10.1 and 3-10.2 (insert after page 3-10) pages 3-11 thru 3-14 pages 3-11 thru 3-14 pages 3-23 thru 3-36 pages 3-23 thru 3-38

NOTE 1: When the manual revision has been inserted in the manual, record the information required on the Record of Revisions pages in this manual.

NOTE 2: Pages distributed in this revision may include pages from previous revisions if they are on the opposite side of revised pages. This is done as a convenience to those users who wish to print a two-sided copy of the new revision.

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 the revision has been inserted in the manual.

(This page is intentionally blank.)

Hartzell Propeller Inc.One Propeller PlacePiqua, Ohio 45356-2634 U.S.A.Phone: 937.778.4200Fax: 937.778.4391

Manual No. 17361-10-73Revision 2October 2015

Composite Spinner Field Maintenance and Minor Repair Manual

Composite Spinner Assemblies

D-5253 103629 (hybrid)D-5311-( ) 104529D-5362 104888 (hybrid)E-5579-6 105085D-7409-( ) 105127E-7480 105656 (hybrid)101298 (hybrid) 105675 (hybrid)102870 105945 (hybrid)103409 (hybrid) 106040 (hybrid)103585 (hybrid) 106215 (hybrid)

Inside Cover Rev. 2 Oct/1561-10-73COVER

COMPOSITE SPINNER FIELD MAINTENANCE AND MINOR REPAIR MANUAL

173

© 1997, 2004, 2007, 2008, 2010, 2013, 2014, 2015 - Hartzell Propeller Inc. - All rights reserved


173

Page 1 Rev. 2 Oct/15

61-10-73REVISION HIGHLIGHTS

REVISION HIGHLIGHTS

Revision 2, dated October 2015, incorporates the following:

• COVER

• Revised to match the manual revision

• REVISION HIGHLIGHTS


• LIST OF EFFECTIVE PAGES


• INTRODUCTION

• Revised the section, "Required Publications" • Made other language/format changes

• MINOR REPAIR

• Added spinner assemblies 106040 and 106215 to Table 2-1, "Spinner Repair Materials" • Added spinner assemblies 105945, 106040 and 106215 to Figure 2-2, "UHMW Tape CM137" • Added spinner assemblies 106040 and 106215 to Table 2-2, "Nutplates and Rivets That Can Be Replaced" • Made other language/format changes

• FINISH PROCEDURES

• Added spinner assemblies 106040 and 106215 to Table 3-1, "Finish Procedures" • Revised Table 3-2, "Consumables and Applicability" • Revised the section, "Finish Paint" • Added spinner assemblies 106040 and 106215 to Figure 3-1, "Resistance Check of the Dome" • Revised Figure 3-2, "Resistance Check of the Bulkhead" • Added Figure 3-2.1, "Resistance Check of the Bulkhead" • Revised the section, "Resistance Check of the Bulkhead" • Added Table 3-4, "Resistance Check of the Bulkhead" • Made other language/format changes


173

Page 2 Rev. 2 Oct/15

61-10-73REVISION HIGHLIGHTS

REVISION HIGHLIGHTS

1. Introduction

A. General

(1) This is a list of current revisions that have been issued against this manual. Please compare to RECORD OF REVISIONS page to ensure that all revisions have been added to the manual.

B. Components

(1) Revision No. indicates the revisions incorporated in this manual.

(2) Issue Date is the date of revision.

(3) Comments indicates the level of the revision.

(a) New Issue is a new manual distribution. The manual is distributed in its entirety. All the revision dates are the same and no change bars are used.

(b) Reissue is a revision to an existing manual that includes major content and/or major format changes. The manual is distributed in its entirety. All the revision dates are the same and no change bars are used.

(c) Major Revision is a revision to an existing manual that includes major content or minor format changes over a large portion of the manual. The manual is distributed in its entirety. All the revision dates are the same, but change bars are used to indicate the changes incorporated in the latest revision of the manual.

(d) Minor Revision is a revision to an existing manual that includes minor content changes to the manual. Only the revised pages of the manual are distributed. Each page retains the date and the change bars associated with the last revision to that page.

Revision No. Issue Date Comments

Original Sep/14 New Issue Rev. 1 Dec/14 Minor Revision Rev. 2 Oct/15 Minor Revision

Rev. 2 Oct/15

LIST OF EFFECTIVE PAGES 61-10-73

LIST OF EFFECTIVE PAGES

Chapter Page Rev. Level Date


173

Cover/Cover Back Cover/Cover Back Rev. 2 Oct/15Revision Highlights 1 and 2 Rev. 2 Oct/15Record of Revisions 1 and 2 Original Sep/14Record of Temporary Revisions 1 and 2 Original Sep/14Service Document List 1 and 2 Original Sep/14Airworthiness Limitations 1 and 2 Original Sep/14List of Effective Pages 1 and 2 Rev. 2 Oct/15Table of Contents 1 and 2 Original Sep/14Introduction 1 and 2 Original Sep/14Introduction 3 Rev. 2 Oct/15Introduction 4 Original Sep/14Introduction 5 and 6 Rev. 2 Oct/15Introduction 7 thru 14 Original Sep/14Repair Limits 1-1 thru 1-18 Original Sep/14Minor Repair 2-1 thru 2-3 Original Sep/14Minor Repair 2-4 Rev. 1 Dec/14Minor Repair 2-4.1 Rev. 1 Dec/14Minor Repair 2-4.2 Rev. 2 Oct/15Minor Repair 2-5 Rev. 1 Dec/14Minor Repair 2-6 and 2-7 Original Sep/14Minor Repair 2-8 Rev. 2 Oct/15Minor Repair 2-9 thru 2-24 Original Sep/14Minor Repair 2-25 Rev. 2 Oct/15Minor Repair 2-26 thru 2-32 Original Sep/14Finish Procedures 3-1 and 3-2 Rev. 2 Oct/15Finish Procedures 3-3 thru 3-5 Original Sep/14Finish Procedures 3-6 thru 3-10 Rev. 2 Oct/15Finish Procedures 3-10.1 and 3-10.2 Rev. 2 Oct/15Finish Procedures 3-11 thru 3-13 Rev. 2 Oct/15Finish Procedures 3-14 thru 3-23 Original Sep/14Finish Procedures 3-24 thru 3-27 Rev. 2 Oct/15Finish Procedures 3-28 and 3-29 Original Sep/14Finish Procedures 3-30 thru 3-38 Rev. 2 Oct/15Tooling 4-1 thru 4-4 Original Sep/14

Rev. 2 Oct/15

LIST OF EFFECTIVE PAGES 61-10-73


173

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173

Page 3Rev. 2 Oct/1561-10-73INTRODUCTION

1. Statement of PurposeA. General

(1) This manual has been reviewed and accepted by the FAA. Additionally, this manual contains data that has been approved in a manner acceptable to the FAA Administrator.

(2) Thismanualprovidesfieldmaintenanceandminorrepairproceduresforcomposite spinner assemblies manufactured by Hartzell Propeller Inc. The text throughout this manual assumes that the spinner has been removed from the propeller assembly, except for certain minor repairs that often can be performed on the aircraft.

(3) Contact the Product Support Department of Hartzell Propeller Inc. about any maintenance problems or to request information not included in this publication.NOTE: When calling from outside the United States, dial (001) before dialing

the telephone numbers listed below.

(a) Hartzell Propeller Inc. Product Support may be reached during business hours (8:00 a.m. through 5:00 p.m., United States Eastern Time) at (937) 778-4379 or at (800) 942-7767, toll free from the United States and Canada.

(b) Hartzell Propeller Inc. Product Support can also be reached by fax at (937) 778-4391, and by e-mail at [email protected].

(c) After business hours, you may leave a message on our 24 hour product support line at (937) 778-4376 or at (800) 942-7767, toll free from the United States and Canada. A technical representative will contact you during normal business hours. Urgent AOG support is also available 24 hours per day, seven days per week via this message service.

(d) Additional information is available on the Hartzell Propeller Inc. website at www.hartzellprop.com.

(4) Thismanualistobeusedbycertifiedairframemechanicswhoarefamiliarwithcomposite products. (a) This manual does not provide complete information for composite spinner

Major Repairs. For personnel authorized to perform Major Repairs refer to the Personnel Requirements section of this chapter.

(5) Thismanualisintendedtobeasourceoffieldinspectionandminorrepairfor composite spinner assemblies. Information published in Service Bulletins, Service Letters, Service Advisories, and Service Instructions may supersede information published in this manual. The reader must consult active Service Bulletins, Service Letters, Service Advisories, and Service Instructions for information that may not yet have been incorporated into the latest revision of this manual.

(6) Some components of a composite spinner may be metal. This manual only gives instructions for the overhaul of the composite components. For overhaul of the metal components, refer to Hartzell Propeller Inc. Metal Spinner Manual 127 (61-16-27).


173

Page 4Sep/1461-10-73INTRODUCTION

(7) Wherepossible,thismanualiswrittenintheformatspecifiedbyATAiSpec 2200.

(8) This manual is not arranged sequentially in steps of the inspection and repair process.

NOTE: Unlessotherwisespecified,thetextofthismanualaddressesallcomposite spinner models.


173


2. Required Publications

A. Hartzell Propeller Inc. Publications(1) In addition to this manual, one or more of the following publications are

requiredforinformationregardingspecificrecommendationsandprocedurestomaintain spinner assemblies.

(2) Information published in Service Bulletins, Service Letters, Service Advisories, and Service Instructions may supersede information published in this manual. The reader must consult active Service Bulletins, Service Letters, Service Advisories, and Service Instructions for information that may have not yet been incorporated into the latest revision of this manual.

Manual No. ATA No. Title

n/a n/a Active Hartzell Propeller Inc. Service Bulletins, Service Letters, Service Instructions, and Service Advisories

127 61-16-27 Hartzell Propeller Inc. Metal Spinner Maintenance Manual (Available on the Hartzell Propeller Inc. website at www.hartzellprop.com.)148 61-16-48 Hartzell Propeller Inc. Composite Spinner Maintenance Manual 159 61-02-59 Hartzell Propeller Inc. Application Guide (Available on the Hartzell Propeller Inc. website at www.hartzellprop.com.)165A 61-00-65 Hartzell Propeller Inc. Illustrated Tool and Equipment Manual (Available on the Hartzell Propeller Inc. website at www.hartzellprop.com.)180 30-61-80 Hartzell Propeller Inc. Propeller Ice Protection System Manual (Available on the Hartzell Propeller Inc. website at www.hartzellprop.com.)181 30-60-81 Hartzell Propeller Inc. Propeller Ice Protection System Component Maintenance Manual (Available on the Hartzell Propeller Inc. website at www.hartzellprop.com.)182 61-12-82 Hartzell Propeller Inc. Propeller Electrical De-ice Boot Removal and Installation Manual (Available on the Hartzell Propeller Inc. website at www.hartzellprop.com.)


173


183 61-12-83 Hartzell Propeller Inc. Propeller Anti-icing Boot Removal and Installation Manual (Available on the Hartzell Propeller Inc. website at www.hartzellprop.com.)202A 61-01-02 Hartzell Propeller Inc. Standard Practices Manual (Volume 7 - Consumable Materials and Packaging and Storage is available on the Hartzell Propeller Inc. website at www.hartzellprop.com.

(3) Refer to the applicable propeller owner's manual for Airworthiness Limitations.

(4) Refer to the applicable propeller owner's manual for on-line maintenance procedures, i.e., maintenance inspection.

(5) For Hartzell Propeller Inc. service literature and revisions, contact:

Hartzell Propeller Inc. Telephone: 937.778.4200 Attn: Technical Publications Department Fax: 937.778.4391 One Propeller Place E-mail: [email protected] Piqua, Ohio 45356-2634 U.S.A.

B. References to Hartzell Propeller Inc. Publications

(1) Special tooling may be required for procedures in this manual. For further tooling information, refer to Hartzell Propeller Inc. Illustrated Tool and Equipment Manual 165A (61-00-65).

(a) Thereferencenumbersfortoolingappearwiththeprefix"TE"directlyfollowing the tool name to which they apply. For example, a template that is reference number 133 will appear as: template TE133.

(2) Consumable materials are referenced in certain sections throughout this manual.SpecificapprovedmaterialsarelistedintheConsumableMaterialschapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02).

(a) Thereferencenumbersforconsumablematerialsappearwiththeprefix"CM"directlyfollowingthematerialtowhichtheyapply.Forexample,an adhesive that is reference number 16 will appear as: adhesive CM16. Onlythoseitemsspecifiedmaybeused.

C. Vendor Publications

(1) None.

4.1 MINOR REPAIR 61-10-73 Rev. 1 Dec/14


173

Spinner Repair Materials Table 2-1, continued

103409

103410 Fiberglass CM55 0.085 inch 0.215 mm)

C-2472-6P Metal --- ---103585


103584 Adapter Ring Unit Metal --- ---

103629


103628( ) Adapter Ring Unit Metal --- ---

104529

104573 Carbon/ Fiberglass CM55 0.085 inch

0.215 mm)104572

Main BulkheadCarbon/

Fiberglass CM55 0.085 inch 0.215 mm)

104571 Fairing Unit

(Does Not Include the Tab)

Carbon/ Fiberglass CM55 0.085 inch

0.215 mm)

104888


104887 Metal --- ---105085


0.215 mm)

105123 Carbon/ Fiberglass --- ---

105127


0.215 mm)


0.215 mm)105656


0.215 mm)105652 Metal --- ---

Spinner Assembly

Part Number

Dome Unit

Part Number

Main Bulkhead/Adapter Ring/ Fairing Unit

Part Number

Construction Repair Material

Cured Ply

Thickness

4.2 MINOR REPAIR 61-10-73 Rev. 2 Oct/15


173

Spinner Assembly

Part Number

Dome Unit

Part Number

Main Bulkhead/Adapter Ring/ Fairing UnitPart Number

Construction Repair Material

Cured Ply

Thickness

105675

105674 Fiberglass CM55 0.085 inch (0.215 mm)

105672 Metal --- ---105945


105944 Metal --- ---106040


(0.215 mm)106348 Metal --- ---

106215


C-2472-6P Metal --- ---

Spinner Repair Materials Table 2-1, continued

7 MINOR REPAIR 61-10-73 Sep/14


173

(8) Make an inspection of the repaired area in accordance with the section "Coin-Tap Inspection Procedure" in the Repair Limits chapter of this manual.

(a) Repair any debonds or voids.

(9) RefinishinaccordancewiththeFinishProcedureschapterofthismanual.

B. Dome Erosion Shield Repair

(1) Thisrepairmaybeperformedforpinholes,pitting,andporosityforwardofthedome/dome erosion shield parting line.

(2) Repair any defect or damage that is through the dome erosion shield into the graphitefiberandKevlar® material in accordance with the steps in the Nose Erosionsectionofthischapter,beforeperformingtherepairofthedomeerosion shield.

WARNING 1: ADHESIVES AND SOLVENTS ARE FLAMMABLE AND TOXIC TO THESKIN,EYES,ANDRESPIRATORYTRACT.SKINANDEYEPROTECTIONAREREQUIRED.AVOIDPROLONGEDCONTACTAND BREATHING OF VAPORS. USE SOLVENT RESISTANT GLOVESTOMINIMIZESKINCONTACTANDWEARSAFETYGLASSESFOREYEPROTECTION.USEINAWELLVENTILATEDAREAAWAYFROMSPARKSANDFLAME.READ AND OBSERVE ALL WARNING LABELS.

WARNING 2: WEARVINYLORLATEXGLOVESWHENREPAIRINGSPINNERDOME EROSION TO PREVENT TOXIC MATERIAL FROM CONTAMINATING SKIN.

(3) Repair Procedure

(a) Apply adhesive CM71 to the area to be repaired.

(b) QuicklyremoveexcessadhesiveandimmediatelyapplytalcpowderCM72 on the adhesive.

(c) Usingaswirlingmotion,pushthetalcpowderCM72intothedamagedarea.

(d) Permittheareatodryforapproximately5minutes.

(e) Using180gritorfinersandpaper,carefullyhandsandtheareauntilsmooth.

(f) Repeatsteps2.B.(3)(a)through3.B.(3)(e),asnecessary,tomakesureofa smooth surface.

(g) RefinishinaccordancewiththeFinishProcedureschapterofthismanual.

8 MINOR REPAIR 61-10-73 Rev. 2 Oct/15


173

UHMW Tape CM137 Installation Location

Spinner Part Number

Dome Part Number

Configuration

E-7409 D-7408 AE-7409-2 D-7408-3 AE-7409-3 D-7408-3 AE-7480 E-7481 B101298 101299 A102870 102885 A103409 103410 A103585 103582 A103629 103627 A

104529( ) 104573( ) A105127( ) 105129( ) A

ConfigurationA ConfigurationB

Spinner Part Number

Dome Part Number

Configuration

105656( ) 105651( ) A105945( ) 105943( ) A106040( ) 106039( ) A106215( ) 106214( ) A

UHMW Tape CM137 Figure 2-2

TPI-1

73-B

ULK

HE

AD

(-2)

25 MINOR REPAIR 61-10-73 Rev. 2 Oct/15


173

Spinner Assembly

Bulkhead/Adapter

Ring

Filler Plate

Hoop Unit

Nutplate Type Rivet

103629 103628( ) B-3846-3 B-3849-3

Fixed Floating B-3847-4

104529( ) 104572 B-3849-3 Floating B-3878-3-4

104888( ) 104887 B-3846-3 B-3849-3


105085( ) 105123( ) B-3849-3 Floating B-3878-3-4

105127( ) 105307 B-3846-3 B-3849-3


105656( ) 105652( ) B-3846-3 B-3849-3


105945( ) 105944 B-3846-3 B-3849-3


106040( ) 106348( ) B-3846-3 B-3849-3


106215( ) C-2472-6( ) B-3849-3 Floating B-3847-4

Nutplates and Rivets That Can Be ReplacedTable 2-2, page 2 of 2

26 MINOR REPAIR 61-10-73 Sep/14


173

G. Replacing a Nutplate on a Composite Bulkhead

(1) NutplateRemoval,Method1

WARNING: SOLVENTSAREFLAMMABLEANDTOXICTOTHESKIN,EYES,ANDRESPIRATORYTRACT.SKINANDEYEPROTECTIONAREREQUIRED.AVOIDPROLONGEDCONTACTANDBREATHING OF VAPORS. USE SOLVENT RESISTANT GLOVES TOMINIMIZESKINCONTACTANDWEARSAFETYGLASSESFOREYEPROTECTION.USEINAWELLVENTILATEDAREAAWAYFROMSPARKSANDFLAME.READ AND OBSERVE ALL WARNING LABELS.

(a) UsingsolventacetoneCM173,MEKCM106,orMPKCM219,thoroughlycleanalloilandgreasefrombothsidesofthebulkhead,aroundthenutplate to be removed.

(b) Apply masking material (aluminum foil tape) to the area around the nutplate to avoid damaging the composite material during grinding.

CAUTION 1: USE EXTREME CAUTION WHEN GRINDING THE RIVET SHANKS TO AVOID DAMAGE TO THE COMPOSITE BULKHEAD. A DAMAGED BULKHEAD MUST BE RETURNED TO HARTZELL PROPELLER INC.

CAUTION 2: DO NOT OVERHEAT THE COMPOSITE MATERIAL DURING GRINDINGOFTHERIVETHEADS.IFNECESSARY,USEWATER TO COOL THE NUTPLATE DURING GRINDING.

(c) Usingasmallhand-grinder,removetheheadoftherivetsthatholdthenutplate in place on the bulkhead.

CAUTION: USE EXTREME CAUTION WHEN REMOVING THE NUTPLATES TO AVOID PULLING THE RIVET HEADS THROUGH THE BULKHEAD. A DAMAGED BULKHEAD MUST BE RETURNED TO HARTZELL PROPELLER INC.

(d) Remove the nutplate from the bulkhead by lightly pulling with pliers.

1 Ifthenutplatecannotberemoved,usethegrindertoremovemore material from the nutplate and rivets until the nutplate can be removed.

(e) Remove the rivets from the bulkhead.

1 Ifnecessary,removetherivetheadsfromthebacksideofthebulkhead by using a small pin punch.

(f) Remove the masking material (aluminum foil tape).

(g) UsingacetoneCM173,MEKCM106,orMPKCM219,cleantheholeandthe area around the hole.

FINISH PROCEDURES - CONTENTS

LIST OF FIGURES

LIST OF TABLES

Resistance Check of the Dome ...............................................Figure 3-1 ..................... 3-30

Resistance Check of the Bulkhead..........................................Figure 3-2 ..................... 3-32

Resistance Check of the Bulkhead..........................................Figure 3-2.1 .................. 3-33

Resistance Check of the Fairing Unit ......................................Figure 3-3 ..................... 3-36

1. RefinishingAfterRepair ............................................................................................. 3-3A. For Areas of Paint Damage 5 Square Inches or Less .......................................... 3-3

2. For Areas of Paint Damage Greater than 5 Square Inches ..................................... 3-16A. Masking .............................................................................................................. 3-17B. Wash Primer (Mixture Number 3) ...................................................................... 3-18C. Primer Filler (Mixture Number 1) ........................................................................ 3-19D. Minor Blemish Correction ................................................................................... 3-20E. Primer Sealer (Mixture Number 2) ..................................................................... 3-21F. Conductive Coating (Mixture Number 13) .......................................................... 3-23G. Finish Paint ........................................................................................................ 3-24H. PaintInspection ................................................................................................. 3-28I. Erosion Mask Installation ................................................................................... 3-29J. Resistance Check of the Dome ......................................................................... 3-31K. Resistance Check of the Bulkhead .................................................................... 3-34L. Resistance Check of the Fairing Unit ................................................................. 3-37

Finish Procedures....................................................................Table 3-1 ......................... 3-6

ConsumablesandApplicability ................................................Table 3-2 ....................... 3-13

AcryGlo®Series571ReducerComponentsand Blend Requirements...........................................................Table 3-3 ....................... 3-15

Resistance Check of the Bulkhead..........................................Table 3-4 ....................... 3-34


173

Page 3-1Rev. 2 Oct/1561-10-73FINISH PROCEDURES

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173


(4) ForAcryGlo® Series 571 Paint Finish

NOTE: LocalrefinishingwithAcryGlo®Series571paintisnotrecommended.

(a) SandtheAcryGlo®Series571paintlayersfromtheentirepart.

(b) Sandtheconductivecoatinglayerifapplicablefromtheentirepart.

CAUTION: APPLY ACRY GLO® SERIES 571 PAINT ONLY TO THE DEGREE REQUIRED TO UNIFORMLY COVER THE PART. AVOID EXCESSIVE PAINT BUILDUP TO AVOID CHANGING THE PROFILE OF THE PART AND/OR THE CONDUCTIVE COATING CHARACTERISTICS.

(c) Repaintthepartinaccordancewiththefinishprocedures,asindicatedinTable3-1inthischapter.

a Optionally,theprimerfillerandtheprimersealermaybeappliedonlytotheareasnecessarytoblendtotheexistingprimerfillerandprimersealerlayers.

(5) ForAcryGlo®Series571PaintFinishformetallicHcodecolorsonly

(a) SandtheAcryGlo®Series571paintlayersfromtheentirepart.

(b) Sandtheconductivecoatinglayerifapplicablefromtheentirepart.

CAUTION: APPLY ACRY GLO® SERIES 571 PAINT FOR METALLIC H CODE COLORS ONLY TO THE DEGREE REQUIRED TO UNIFORMLY COVER THE PART. AVOID EXCESSIVE PAINT BUILDUP TO AVOID CHANGING THE PROFILE OF THE PART AND/OR THE CONDUCTIVE COATING CHARACTERISTICS.

(c) Repaintthepartinaccordancewiththefinishprocedures,asindicatedinTable3-1inthischapter.


173

Page 3-5Sep/1461-10-73FINISH PROCEDURES

Finish Sequence

Finish Procedure

SpinnerAssembly D-5253-( )



Dome D-5263

Bulkhead D-5264

Dome D-5312-( )

Bulkhead D-5313-( )

Dome D-5363

Bulkhead D-5364

1 Masking --- --- --- --- --- ---

2 Primer Filler X X X X X X

3

Minor Blemish

Correction See NOTE 1

X X X X X X

4 Primer Sealer X X X X X X

5 Conductive Coating --- --- --- --- --- ---

6 Masking Instruction 2 --- --- --- --- --- ---

7 Wash Primer --- --- --- --- --- ---

8 Primer Sealer --- --- --- --- --- ---

9 Finish Paint See NOTE 2 X X X X X X

10 Paint Inspection X X X X X X

11Dome

Resistance Check

--- --- --- --- --- ---

12Bulkhead

Resistance Check

--- --- --- --- --- ---

13Erosion Mask Removal and

Installation--- --- --- --- --- ---

14 Identification X X X X X X

NOTE 1: Thestepsinthesection, "MinorBlemishCorrection"inthischaptermaybeperformedatanytimeduringthePrimerFillerorPrimerSealerprocedures.

NOTE 2: AnyHartzellPropellerInc.approvedPolane®TorAcryGlo® Series 571 (includingmetallic,Hcode)paintcolorsmaybeusedasfinishpaintforthesecomponents.

Finish Procedures Table 3-1


173


Finish Sequence

Finish Procedure

SpinnerAssembly E-5579-( )


SpinnerAssembly E-7480-( )

Dome E-5580-( )

Bulkhead E-5581

Dome D-7408

Bulkhead D-7404

Dome E-7481

Bulkhead E-6666

1 Masking Instruction 1

Instruction 2

Instruction 2

Instruction 2

Instruction 2

Instruction 2

2 Primer Filler X X X X X X

3

Minor Blemish


X X X X X X

4 Primer Sealer X X X X X X


6 Masking Instruction 2 --- --- --- --- --- ---

7 Wash Primer --- --- --- --- --- ---

8 Primer Sealer --- --- --- --- --- ---



11Dome

Resistance Check

X --- X --- X ---

12Bulkhead

Resistance Check

--- X --- X --- X

13Erosion Mask Removal and Installation

X --- --- --- X ---




Finish Procedures Table 3-1, Continued


173



Finish Sequence

Finish Procedure

SpinnerAssembly 101298



Dome 101299

Bulkhead D-7083-1G

Dome 102885

Bulkhead 102892

Dome 103410

Bulkhead C-2472-6( )

1 Masking --- --- --- --- --- ---

2 Primer Filler X --- X X X ---

3

Minor Blemish


X --- X X X ---

4 Primer Sealer X --- X X X ---

5 Conductive Coating --- --- --- --- X ---

6 Masking Instruction 2 --- X --- --- X X

7 Wash Primer --- X --- --- --- X

8 Primer Sealer --- --- --- --- X ---



11Dome

Resistance Check

X --- X --- X ---

12Bulkhead

Resistance Check

--- --- --- X --- ---


--- --- --- --- --- ---





173



Finish Sequence

Finish Procedure



Dome 103582

AdapterRing

103584

Filler Plate 103583 or

104001

Dome 103627

AdapterRing

103628( )

1 Masking --- --- --- --- ---

2 Primer Filler X --- X X ---

3

Minor Blemish


X --- X X ---

4 Primer Sealer X --- X X ---

5 Conductive Coating X --- X X ---

6 Masking Instruction 2 X X X X X

7 Wash Primer --- X --- --- X

8 Primer Sealer X --- X X ---

9 Finish Paint See NOTE 2 X X X X X

10 Paint Inspection X X X X X

11Dome

Resistance Check

X --- X X ---

12Bulkhead

Resistance Check

--- --- --- --- ---


--- --- --- --- ---

14 Identification X X X X X




173



Finish Sequence

Finish Procedure



Dome 104573

Bulkhead 104572

Fairing Unit 104571

(Does Not Include the

Tab)

Fairing Unit 104571(For the TabOnly)

Dome 104886

Bulkhead 104887

1 Masking --- --- --- --- --- ---

2 Primer Filler X X X --- X ---

3

Minor Blemish


X X X --- X ---

4 Primer Sealer X X X --- X ---

5 Conductive Coating --- --- --- --- X ---

6 Masking Instruction 2 --- --- --- X X X

7 Wash Primer --- --- --- X --- X

8 Primer Sealer --- --- --- --- X ---



11Dome

Resistance Check

--- --- --- --- X ---

12Bulkhead

Resistance Check

X XFaring Unit Resistance

Check--- --- ---


--- --- --- --- --- ---





173



Finish Sequence

Finish Procedure




Dome 105122

Bulkhead 105123

Dome 105129

Bulkhead 105307

Dome 105651

Bulkhead 105652

1 Masking --- --- --- --- --- ---

2 Primer Filler X X X X X ---

3

Minor Blemish


X X X X X ---

4 Primer Sealer X X X X X ---


6 Masking Instruction 2 --- --- --- --- --- X

7 Wash Primer --- --- --- --- --- X

8 Primer Sealer --- --- --- --- --- ---



11Dome

Resistance Check

X --- X --- X ---

12Bulkhead

Resistance Check

--- X --- X --- ---


--- --- --- --- --- ---





173

Page 3-10.1Rev. 2 Oct/1561-10-73FINISH PROCEDURES


Finish Sequence

Finish Procedure



Dome 105674

Bulkhead 105672

Dome 105943

AdapterRing

105944

Filler Plate 104001

1 Masking --- --- --- --- ---

2 Primer Filler X --- X --- X

3

Minor Blemish


X --- X --- X

4 Primer Sealer X --- X --- X

5 Conductive Coating --- --- X --- X

6 Masking Instruction 2 --- X X X X

7 Wash Primer --- X --- X ---

8 Primer Sealer --- --- X --- X

9 Finish Paint See NOTE 2 X X X X X

10 Paint Inspection X X X X X

11Dome

Resistance Check

--- --- X --- X

12Bulkhead

Resistance Check

--- --- --- --- ---


--- --- --- --- ---

14 Identification X X X X X

NOTE 1: Thestepsinthesection"MinorBlemishCorrection"inthischaptermaybeperformedatanytimeduringthePrimerFillerorPrimerSealerprocedures.



173

Page 3-10.2Rev. 2 Oct/1561-10-73FINISH PROCEDURES


Finish Sequence

Finish Procedure



Dome 106039

Bulkhead 106348

Dome 106214

Bulkhead C-2472-6( )

1 Masking --- --- --- ---

2 Primer Filler X --- X ---

3

Minor Blemish


X --- X ---

4 Primer Sealer X --- X ---

5 Conductive Coating --- --- X ---

6 Masking Instruction 2 --- X X X

7 Wash Primer --- X --- X

8 Primer Sealer --- --- X ---

9 Finish Paint See NOTE 2 X X X X

10 Paint Inspection X X X X

11Dome

Resistance Check

X --- X ---

12Bulkhead

Resistance Check

--- --- --- ---


--- --- --- ---

14 Identification X X X X

NOTE 1: Thestepsinthesection,"MinorBlemishCorrection"inthischaptermaybeperformedatanytimeduringthePrimerFillerorPrimerSealerprocedures.



173




173


Part Number CM Number

Description Quantity Applicability

Paint Primed

Components

RefinishPainted

ComponentsN/A N/A Sandpaper,60gritorfiner(removal) A/R xN/A N/A Sandpaper,400grit(betweenlayers) A/R x xN/A CM159 Cheesecloth, or equivalent A/R x xAlternates Listed Solvent - use one of these alternates A/R x x

N/A CM173 Solvent - Acetone A/RN/A CM106 Solvent-MethylEthylKetone(MEK) A/RN/A CM219 Solvent-MethylPropylKetone(MPK) A/R

Mix#1 Primer Filler, Polane 2.8 Plus A/R xA-6741-84(-1) CM84 SprayFill 6partsA-6741-85(-1) CM85 Catalyst 1partA-6741-32(-1) CM32 Polane Reducer (25% maximum) A/R

Mix#2 PrimerSealer,Grey A/R xA-6741-29(-1) CM29 Primer Sealer 13partsA-6741-30(-1) CM30 Catalyst 1partA-6741-32(-1) CM32 Polane Reducer (3.25partsmaximum) A/RA-6741-31(-1) CM31 Accelerator A/R

Mix#3 Wash Primer A/RNOTE:TheHartzellPropellerInc.requiredmixratioisasshownhere.Themixratiodiffersfromthemanufacturer'slabel.MakesuretousethemixratiothatisspecifedbyHartzellPropellerInc.

A-6741-24 CM24 Wash Primer 4partsA-6741-25 CM25 Reducer, Wash Primer 4partsA-6741-26 CM26 Acid Diluent 1part

Mix#13 P-Static, Conductive Coating A/R xA-2328-13 CM164 Kit, quart (contains base & activator) -A-6741-164-5 CM164 Conductive Coating Base, Black 1partA-6741-164-6 CM164 Conductive Coating Activator 1part

Finish Paint Polane T®Paint-seebelow x xA-6741-( ) CM( ) Polane T® Paint 6partsA-6741-30 CM30 Catalyst 1partA-6741-32 CM32 Polane Reducer, as required to achive

desireddrythickness1 - 3 parts

A-6741-31 CM31 Accelerator A/R

Consumables and Applicability Table 3-2


173


Consumables and Applicability Table 3-2, Continued

Part Number CM Number

Description Quantity Applicability

Paint Primed

Components

RefinishPainted

ComponentsFinish Paint AcryGlo®Series571Paint-seebelow x x

A-6741-282 OR A-6741-291 OR ------------------

CM282 CM291 ---------

AcryGlo® Series 571 Matterhorn White (Mix 15) AcryGlo® Series 571 Sterling Silver Metallic (H code) (Mix 25) -oruseanyAcryGlo® Series 571 color

3parts

A-6741-283 CM283 Catalyst-withNON-metallicpaint 1partA-6741-283 CM283 Catalyst-withmetallicpaint 1/2partA-6741-292 CM292 AcryGlo® Stabilizer-withmetallic

(Hcode)paintsonly1/2part

A-6741-( ) Table 7-3

Reducer (Blended, refer to Table 7-3) A/R

A-6741-288 Table 7-3

Reducer (Urethane Grade MEK) A/R

A-6741-287 CM287 Accelerator A/RA-6741-290 CM290 AcryGlo® ConventionalClear-with

metallic(Hcode)paintsonly(Mix26)A/R


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F. Conductive Coating (Mixture Number 13)

NOTE: Forthefinishproceduresapplicabletoeachspinnerassembly,refertoTable3-1FinishProceduresinthischapter.

CAUTION 1: DO NOT APPLY CONDUCTIVE COATING (MIXTURE NUMBER 13) UNLESS IT WILL BE COVERED BY AN ADDITIONAL COATING WITHIN 4 HOURS.

CAUTION 2: DO NOT SAND CONDUCTIVE COATING (MIXTURE NUMBER 13) BECAUSE SANDING MAY DAMAGE THE STATIC PATH.

(1) General

NOTE: Conductive Coating (Mixture Number 13) is not used for the metal bulkheadortheadapterringunitofahybridspinnerassembly.

(a) Recommended Film Thickness

1 Twolayersmeasuringatotalofapproximately0.6to1.0mil whendry.

(2) Application

WARNING: ADHESIVES AND SOLVENTS ARE FLAMMABLE AND TOXIC TO THE SKIN, EYES, AND RESPIRATORY TRACT. SKIN AND EYE PROTECTION ARE REQUIRED. AVOID PROLONGED CONTACT AND BREATHING OF VAPORS. USE SOLVENT RESISTANT GLOVES TO MINIMIZE SKIN CONTACT AND WEAR SAFETY GLASSES FOR EYE PROTECTION. USE IN A WELL VENTILATED AREA AWAY FROM SPARKS AND FLAME. READ AND OBSERVE ALL WARNING LABELS.

(a) Preparetheconductivecoating(MixtureNumber13)inaccordancewiththemixtureproportionsspecifiedinTable3-2ConsumablesandApplicability.

(b) UsingcheeseclothCM159orequivalentdampenedwithsolvent acetoneCM173,MEKCM106,orMPKCM219,wipeallsurfacesof theparttobepainted.

(c) PermitthesolventacetoneCM173,MEKCM106,orMPKCM219todry.

(d) Sprayonelayerofconductivecoating(MixtureNumber13)overthe entire surface.

CAUTION: CONDUCTIVE COATING (MIXTURE NUMBER 13) MUST BE COVERED BY AN ADDITIONAL COATING WITHIN FOUR (4) HOURS.

(e) Permit the conductive coating (Mixture Number 13) to cure a maximum offour(4)hoursbeforeapplyinganyadditionalcoating.


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G. Finish Paint

NOTE 1: Forthefinishproceduresapplicabletoeachspinnerassembly,refertoTable3-1FinishProceduresinthischapter.

NOTE 2: IfAcryGlo®Series571paintisdesired,referto"AcryGlo® Series 571 Paint" in this section.

(1) Polane® T Paint

(a) General

1 Recommended Film Thickness

a Two(2)layersofPolane®Tpaintmeasuring a total of 2 to 4 mils whendry.

(1) Themaximumaccumulatedthicknessofprimersealer,paint,andclearcoat(ifapplicable)is7milswhendry.

2 Thecuringtimeofpaintformaximumabrasionresistanceandimpactstrengthisseven(7)days.

3 AspinnerpartmaybepaintedwithanyapprovedPolane®Tpaintmixture.ForapprovedPolane®Tpaintmixtures,refertoTable3-2ConsumablesandApplicability.

4 BeforeapplyingPolane® Tpaint,removeanymaskingmaterial,ifused, from the erosion shield of the E-5580-( ) dome.

(b) Application

1 PreparethedesiredpaintmixtureinaccordancewiththemixtureproportionsspecifiedinTable3-2ConsumablesandApplicability.

2 UsingcheeseclothCM159orequivalentdampenedwithsolvent acetoneCM173,MEKCM106,orMPKCM219,wipeallsurfacesof theparttobepainted.

3 Permit the solvent acetone CM173, MEK CM106, or MPK CM219 to dry.

4 Painttheentiresurfacewiththespecifiedpaintmixusingasmooth,evensprayingmotioninthreepassesuntiltheentiresurfacetobepaintediscovered.

NOTE: Three(3)passesofpaintoverthesurfaceisconsideredtobeonelayerofpaint.


173


5 Permitthepaintedsurfacetodryinaccordancewiththepaintmanufacturer'sinstructionsuntilitisdryto the touch.

a Foradequatelayer-to-layerpaintadhesion,themaximumtimebetweencoatsofpaintisfour(4)hours.

b Ifithasbeenlongerthanfour(4)hourssincethepreviouslayerofpaintwasapplied:

(1) Using400gritsandpaper,lightlysandthecuredsurface.

(2) Usingclean,drycheeseclothCM159orequivalent,wipethesandedcuredsurfacebeforeapplyingasubsequentlayerofpaint.

6 Repeatthepaintapplicationusingthree(3)passestoapplyasecondlayerofpaint,makingsurethatthesurfaceofthepartisfullycovered.

7 Ifthepartwillbestoredinanairtightplasticbag,curethepartforaminimum of 24 hours.

(2) AcryGlo® Series 571 Paint

(a) General1 Recommended Film Thickness

a ThemaximumpermittedfilmthicknessoftheAcryGlo® Series571paintis2milswhendry.

(1) Themaximumaccumulatedthicknessofprimersealer,paint,andclearcoat(ifapplicable)is7milswhendry.

2 Thecuringtimeofpaintformaximumabrasionresistanceandimpactstrengthisseven(7)days.

3 AspinnermaybepaintedwithanyapprovedAcryGlo® Series 571 paintmixture.ForapprovedAcryGlo®Series571paintmixtures, refer to Table 3-2. a Themixofpaint,catalyst,reducer,accelerator,andstabilizer

(formetallicHcodecolorsonly)appliestoallcolors ofAcryGlo® Series571paint(includingmetallic,Hcodecolors).Referto Table 3-2forthelistofapplicableconsumables.

b ContactanySherwinWilliams®locationtoidentifyalocaldistributorforaircraftpaint(fromtheSherwinWilliams®website,selectAerospaceFinishes)forassistanceprocuringthecorrectpaint.


173


CAUTION: REFINISHING OF THE COMPOSITE SPINNER DOME AND FILLER PLATES CAN ALTER THE P-STATIC DISSIPATION CAPABILITIES OF THESE COMPONENTS. IMPROPER P-STATIC DISSIPATION COULD LEAD TO DISTORTION OR DAMAGE OF THE ELECTRONIC COMPONENTS IN THE AIRCRAFT, INCLUDING NAVIGATIONAL EQUIPMENT.

4 Additional paint must not be applied over the existing manufacturer's finish. Additional layers of paint will inhibit the function of the P-Static coating to dissipate static electricity.

(b) Application


1 Prepare the desired paint mixture in accordance with the mixture proportions specified in Table 3-2 Consumables and Applicability.

2 Using cheesecloth CM159 or equivalent dampened with solvent acetone CM173, MEK CM106, or MPK CM219, wipe all surfaces of the part to be painted.

3 Permit the solvent acetone CM173, MEK CM106, or MPK CM219 to dry.

4 Paint the entire surface with the specified paint mix using a smooth, even spraying motion in three passes until the entire surface to be painted is covered.

NOTE: Three (3) passes of paint over the surface is considered to be one layer of paint.

a The maximum permitted film thickness of the paint (color) is 2 mils when dry.

(1) The equivalent of 5 mils wet coat = 2 mils dry coat.

(2) Wet coat thickness can be measured using a Sherwin Williams® wet film/mil gauge standard.


173


CAUTION: DO NOT EXCEED FOUR (4) HOURS BETWEEN LAYERS WHEN USING ACRY GLO® SERIES 571 METALLIC (H CODE) PAINT. THE METALLIC PAINT CANNOT BE SANDED.

5 Permitthepaintedsurfacetodryinaccordancewiththepaintmanufacturer'sinstructionsuntilitisdryto the touch.

a Foradequatelayer-to-layerpaintadhesion,themaximumtimepermittedbetweenlayersofpaintisfour(4)hours.

b If it has been longer than fourhourssincethepreviouslayerofpaintwasapplied:

CAUTION: DO NOT SAND THE FINAL LAYER OF PAINT BEFORE APPLYING THE CLEAR COAT. IF IT HAS BEEN LONGER THAN FOUR HOURS SINCE THE FINAL LAYER WAS APPLIED, REMOVE THE PAINT IN ACCORDANCE WITH THE SECTION, "PAINT REMOVAL" IN THE OVERHAUL CHAPTER OF THIS MANUAL.

(1) Using400gritsandpaper,lightlysandthecuredsurface.

(2) Usingclean,drycheeseclothCM159orequivalent,wipethesandedcuredsurfacebeforeapplyingasubsequentlayerofpaint.

(3) Re-paintinaccordancewiththesection,"AcryGlo® Series 571Paint"inthischapter.

CAUTION: ACRY GLO® SERIES 571 METALLIC (H CODE) PAINTS REQUIRE THE USE OF A CLEAR COAT.

6 ForAcryGlo®Series571metallic(Hcode)paint,aclearcoatmustbeapplied.

CAUTION: DO NOT EXCEED 24 HOURS BETWEEN THE LAST LAYER OF PAINT AND THE LAYER OF CM292 CONVENTIONAL CLEAR.

a Usingthesameapplicationprocedureasusedforthecolor,applyCM292ConventionalClearoverthemetallicpaint.

b Themaximumallowablefilmthicknessoftheclearcoatis2milswhendry.

(1) Theequivalentof5milswetcoat=2milsdrycoat.

(2) WetcoatthicknesscanbemeasuredusingaSherwinWilliams®wetfilm/milgaugestandard.


173


H. PaintInspection


(1) InspectionofPolane® T Paint

(a) Examinethesurfaceforsatisfactorypaintcoverage.

1 Ifthepaintcoverageisnotsatisfactory:

a Sand the Polane®Tpaintlayerfromtheentirepart.

CAUTION: APPLY POLANE® T PAINT ONLY TO THE DEGREE REQUIRED TO UNIFORMLY COVER THE PART. AVOID EXCESSIVE PAINT BUILDUP TO AVOID CHANGING THE PROFILE OF THE PART AND/OR THE CONDUCTIVE COATING CHARACTERISTICS.

b Repaintthepartinaccordancewiththesection2.H.(1)Polane® TPaintinthischapter.

c Optionally,followtheinstuctionsinthesection"RefinishingafterRepair"inthischapter.

(2) InspectionofAcryGlo® Series 571 Paint

(a) Examinethesurfaceforsatisfactorypaintcoverage.

1 Ifthepaintcoverageisnotsatisfactory:

a SandtheAcryGlo®Series571paintlayerfromtheentirepart.

CAUTION: APPLY ACRY GLO® SERIES 571 PAINT ONLY TO THE DEGREE REQUIRED TO UNIFORMLY COVER THE PART. AVOID EXCESSIVE PAINT BUILDUP TO AVOID CHANGING THE PROFILE OF THE PART AND/OR THE CONDUCTIVE COATING CHARACTERISTICS.

b Repaintthepartinaccordancewiththesection"AcryGlo® Series571Paint"inthischapter.

c Optionally,followtheinstructionsinthesection"RefinishingafterRepair"inthischapter.

(3) Removeanymaskingmaterial,ifused.


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I. Erosion Mask Installation


(1) Inspectformissingpaint,pinholes,pitting,andporosityasfollows:

(a) Visuallyexaminethedomeerosionshieldforwardofthedomeerosionshieldpartingline.

(b) Visuallyexaminethespinnerdomeaftofthedomeerosionshieldpartingline.

(c) Repairanydefectinaccordancewiththesection"DomeErosionShieldRepair"intheMinorRepairchapterofthismanual.

(2) Inspectthespinnerdomeaftofthedomeerosionshieldpartingline.

(3) Inspectthespinnerdomeaftofthedomeerosionshieldpartingline.

(4) Ifthedomeerosionshieldandspinnerdomedonotrequirerepairs,continuewiththestepsinthefollowingInstallationProcedure.

(5) Cleaning


(a) UsingcheeseclothCM159orequivalentdampenedwithsolvent acetoneCM173,MEKCM106,orMPKCM219,wipethesurfacecleanwheretheUHMWtapeCM137willbeinstalledontheforwardbulkheadofthe dome.

(6) Installation Procedure

CAUTION 1: DO NOT TRIM THE EROSION MASK ON THE SPINNER DOME BECAUSE DAMAGE TO THE SPINNER DOME WILL OCCUR.

CAUTION 2: DO NOT INSTALL THE EROSION MASK ON THE DOME EROSION SHIELD UNTIL THE PAINT HAS CURED FOR A MINIMUM OF EIGHT (8) HOURS OR THE EROSION MASK WILL NOT ADHERE PROPERLY.

(a) RefertoTable3-1FinishProceduresinthischapter,forapprovalforinstallation of the erosion mask.


173


Resistance Check of the Dome Figure 3-1

Dome Unit

Screw (spinnerdomemounting)

Washer (spinnerdomemounting)

B-3839-3 Nut (oranynutofanappropriatesize)

A-1040 Washer (oranynon-conductivewasherofanappropriatesize,thatpreventscontactbetweenthenutandthe

inside surface of the dome)

For the Permitted

Resistance, Refer to the Table

in this Figure

Dome Unit

SpinnerAssemblyPart Number

Dome Part Number

Maximum Permitted Resistance

E-5579-( ) E-5580-( ) 2 ohmsD-7409-( ) D-7408-( ) 2 ohmsE-7480 E-7481-( ) 2 ohms101298 101299 2 ohms102870 102885 0.1 Megohm103409 103410 0.1 Megohm103585 103582 0.1 Megohm103629 103627 0.1 Megohm104592 104573 0.1 Megohm104888 104886 0.1 Megohm105085 105122 0.1 Megohm105127 105129 0.1 Megohm105656 105651 0.1 Megohm105945 105943 0.1 Megohm106040 106039 0.1 Megohm106215 106214 0.1 Megohm

TI-0

0114


173


(b) Part Numbers

1 792200091suppliedbyHartzellPropellerInc.

2 SJ8665FP202suppliedby3MCompany,3MBldg.220-8E, St. Paul, MN 55144, Tele: 1.800.362.3550, Fax: 612.733.9175

3 PM-91suppliedbyPMResearch,4110NilesHillRd., Wellsville, NY 14895, Tele: 716.593.3169, Fax: 716.593.5637

(c) Exceptfortrimmingtheerosionmaskwheninstalledonthespinner, followthemanufacturer'sinstructionsformakingatemplateandtrimmingthecustomerprocurederosionmask.

1 Using a measurement of 5.0 inches (127.0 mm) along the surface oftheerosionmask,fromthetopcenterlinedownthesideoftheerosionmaskproducesamaskofsatisfactorysize.

(d) Installtheerosionmasktothedomeerosionshieldinaccordancewithmanufacturer's installation instructions.

1 The erosion mask must be smooth over the dome erosion shield and thespinnerdomewithnoairpockets.

J. Resistance Check of the Dome


NOTE 2: Thedomeisnotinstalledonthebulkheadortheadapterringunit.

(1) Installascrewwithwashersandanutineachoftwodomemountingholeswiththemaximumdistancepossiblebetweenthem,inaccordancewiththeinformation in Figure 3-1.

(2) Usinganohmmetercapableof20Megohms,performthefollowingresistancechecks:

(a) Measuretheresistancefromthescrewinonedomemountingholetothescrewintheotherdomemountinghole.RefertoFigure3-1.

1 Iftheresistancemeasurementisnotsatisfactory,cleanthecontactpointsusingasolventsuchasCM23orequivalentandrepeattheresistance measurement.

2 Iftheresistancemeasurementisnotsatisfactoryaftercleaningforthetwoholes,usetwodifferentholeswiththemaximumdistancepossiblebetweenthemandrepeatthemeasurement.

a Repeatthemeasurementusingdifferentholeswiththemaximumdistancepossiblebetweenthemuntiltheresistancemeasurementissatisfactory.

(3) Removethehardwarethatwasusedfortheresistancecheckofthedomefromthe dome mounting holes.


173


Resistance Check of the Bulkhead Figure 3-2

A A

Section A-A

Bolt/Screw(steel) ofappropriatesize

Flat Washer (steel) ofappropriatesize Nut (steel)

ofappropriatesize

Bulkhead Mounting Hole

Nutplate

Flat Washer (steel) ofappropriatesizeBulkhead

TPI-M

B-0

100


173


Resistance Check of the Bulkhead Figure 3-2.1

A A

Bulkhead Mounting Hole

Nutplate

DimpledWasherNAS1169-() ofappropriatesize

Section A-A

Bolt/Screw(steel) ofappropriatesize

Nut (steel) ofappropriatesize Flat Washer (steel)

ofappropriatesize

TPI-M

B-0

100a


173



Bulkhead/AdapterRing Part Number

Maximum Permitted Resistance Refer to:

E-5579-( ) E-5581 2 ohms Figure 3-2D-7409-( ) D-7404 2 ohms Figure 3-2E-7480 D-6666 2 ohms Figure 3-2.1102870 102892 2 ohms Figure 3-2104529 104572 2 ohms Figure 3-2.1105085 105123 2 ohms Figure 3-2.1105127 105307 2 ohms Figure 3-2

*RefertoTable7-5forthehardwarekitcomponentpartnumbers

Resistance Check of the Bulkhead Table 3-4

K. Resistance Check of the Bulkhead


NOTE 2: The dome is not installed on the bulkhead.

(1) In one bulkhead mounting hole, install thehardware for the resistance check in accordancewith theapplicableFigurereferencedinTable3-4.

(2) Installonespinnerdomemountingscrewinthenutplatethatisthemaximumpossibledistancefromthehardwareinstalledinthebulkheadmountinghole. RefertotheapplicableFigurereferencedinTable3-4.


173


(3) Usinganohmmetercapableof20Megohms,performthefollowingresistancechecks.

(a) Measure the resistance from the hardware installed in the bulkhead mountingholetothespinnerdomemountingscrewinstalledinthenutplate.Refer to Table3-4forthemaximumpermittedresistance.



2 Iftheresistancemeasurementisnotsatisfactoryaftercleaningforthetwo holes,usetwo differentlocationswiththemaximumdistancepossiblebetweenthemandrepeatthemeasurement.

a Repeatthemeasurementusingdifferentlocationswiththemaximumdistancepossiblebetweenthemuntiltheresistancemeasurementissatisfactory.

(4) Remove the resistance check hardwarefromthebulkhead.


173


Resistance Check of the Fairing Unit Figure 3-3

B-3837-0363 Washer (oranywasherofanappropriatesize)

B-3839-3 Nut(oranynutofanappropriatesize)

Washer (fairing mounting)

Screw (fairing unit mounting)

Forillustrationpurposes, thescrewisshownengaged,

but not tightened


Fairing Unit Part Number

Maximum Permitted Resistance

104529 104571 0.1 megohm

TI-4

11-0

1 TI

-001

15B

TI

-001

15C

For the Permitted

Resistance, Refer to the Table

in this Figure


173


L. Resistance Check of the Fairing Unit

NOTE 1: Forthefinishproceduresapplicabletoeachfairingunit,refertoTable3-1FinishProceduresinthischapter.

NOTE 2: The fairing unit is not installed on the bulkhead.

(1) Inonefairingunitmountinghole,installascrewwithwashersandanutinaccordancewiththeinformationinFigure3-3.

(2) Usinganohmmetercapableof20Megohms,performthefollowingresistancechecks.

(a) Measuretheresistancefromthescrewinstalledtoafairingunitscrewthatisthemaximumdistancepossibleawayfromtheinstalledscrew.RefertoFigure 3-3.


2 Iftheresistancemeasurementisnotsatisfactoryaftercleaningforthetwo holes,usetwo differentlocationswiththemaximumdistancepossiblebetweenthemandrepeatthemeasurement.

a Repeatthemeasurementusingdifferentlocationswiththemaximumdistancepossiblebetweenthemuntiltheresistancemeasurementissatisfactory.

(3) Removethehardwarethatwasusedfortheresistancecheckofthefairingunitfrom the fairing unit mounting holes.


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