Main Wheel CMM 32-47-46 Rev 9 - 18July2013

F6137 Inovel Parc Sud BP 40 78140 VELIZY - VILLACOUBLA VILLACOUBLAY Y FRANCE FAX: 33 (0)1 46 83 02 00 – TEL: 33 (0)1 46 29 81 00 INTERNET: www.safranmbd.com

COMPONENT MAINTENANCE MANUAL WITH ILLUSTRATED PARTS LIST Main Landing Gear Wheel Assembly PN: C20195 01951 162

The technical data in this document (or fi le) may contain US data and be controlled for export under the Export Administration Regulations (EAR), 15 CFR Parts 730-774, ECCN: 9E991. Violations of these laws may be subject to fi nes and penalties under the Export Administration Act.

The content of this document is the property of and contains information proprietary to MESSIER-BUGA MESSIER-BUGATTI-DOWTY TTI-DOWTY and recipient by accepting this docume document nt agrees to this. It must not be used for any purpose other than that for which it is supplied nor may information contained in it be divulged or reproduced in whole or in part without MESSIER-BUGATTI-DOWTY prior written consent, except for internal use and, in this case, all information reproduced must be protected by the MESSIER-BUGATTI-DOWTY proprietary legend.

Co p y r i g h t ©

1996

COMPONENT MAINTENANCE MANUAL C20195162

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TRANSMITTAL SHEET

TO: HOLDERS OF COMPONENT MAINTENANCE MANUAL FOR MAIN LANDING GEAR WHEEL ASSEMBLY ATA 32-47-46 32-47- 46 Revision No. 9, dated Jul 18/13 is attached and covers all components held by every operator.

REASON FOR REVISION: CAUTION:

THIS MANUAL MANUAL SUPERSEDES SUPERSEDES THE THE PREVIOUS PREVIOUS ISSUE. ISSUE. ALL THE PAGES OF THE PREVIOUS ISSUE MUST BE REMOVED, DESTROYED AND REPLACED BY ALL THE PAGES OF THE NEW REVISION. THIS IS NECESSARY TO TAKE IN ACCOUNT THE TRANSFERRED PAGES WHICH ARE NOT COVERED BY A TECHNICAL MODIFICATION.

This CMM has been completely reissued reissued to take into account the last applicable applicable writing rules requested by ATA 2200 with new layout and to incorporate the SL F6137-32-873.

FILING INSTRUCTIONS: INSTRUCTIONS: Remove and destroy all the pages of the previous issue. Replace them by all the pages of the Revision No. 9, dated dated Jul 18/13. 18/13.

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HIGHLIGHTS Revision No.9 - Jul 18/13 Pages which have been added, revised or deleted are outlined below together with the Highlights of the Revision. LOCATIONS

DESIGNATION

DESCRIPTION OF CHANGE

TITLE PAGE

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Revised to reflect this revision

RECORD OF REVISIONS

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RECORD OF TEMPORARY REVISIONS

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SERVICE BULLETIN LIST

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LIST OF EFFECTIVE PAGES

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TABLE OF CONTENTS

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LIST OF ILLUSTRATIONS

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INTRODUCTION

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TASK 32-47-46-871-801-A01 DESCRIPTION AND OPERATION TASK 32-47-46-870-801-A01 TESTING AND FAULT ISOLATION

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TASK 32-47-46-700-801-A01

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SUBTASK 32-47-46-790-003-A01

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TASK 32-47-46-810-801-A01

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DISASSEMBLY

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LOCATIONS

DESIGNATION

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CLEANING

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TASK 32-47-46-100-801-A01

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SUBTASK 32-47-46-110-001-A01

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INSPECTION/CHECK


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LOCATIONS

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LOCATIONS

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LOCATIONS

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ASSEMBLY

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FITS AND CLEARANCES


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SPECIAL TOOLS, FIXTURES, EQUIPMENT AND CONSUMABLES

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LOCATIONS

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STORAGE AND TRANSPORTATION

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ILLUSTRATED PARTS LIST

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DETAILED PARTS LIST

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RECORD OF REVISIONS

INSERTED REV. No. 1 2 3 4 5 6 7 8 9

ISSUE DATE

DATE

BY

INSERTED REV. No.

ISSUE DATE

DATE

BY

Jun 30/97 Dec 15/98 May 17/99 May 12/00 Apr 30/01 Jul 31/01 Jul 31/03 Sep 04/06 Jul 18/13

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RECORD OF TEMPORARY REVISIONS Keep this record in the first pages of the manual. When you get a temporary revision, put the yellow revision pages into the manual opposite the pages changed by this revision. Write the revision number, the date at which you put the revision into the manual and your initials. Do not remove the yellow pages until you get a permanent revision which contains these data. INSERTED TEMP REV. No.

ISSUE DATE

32-2

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REMOVED PAGE No.

DATE

BY

DATE

BY 1/4 2/4 3/4 4/4

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SERVICE BULLETIN LIST The Service Letters (SL) are usually released to give general data. But some Service Letters can contain more data on procedures or modi fications given to the component operator.

SB No.

REV No.

C20195-32-3134

1

SL C20211-32-790

2

SL C20195-32-3192

0

C20195-32-3185

0

SL F6137-32-813

0

C20195-32-3204

0

SL F6137-32-823

MOD No.

8592

INCORP. DATE

TITLE

Apr 30/96

NEW CMM New wheels: - Increase in the diameter of the spotfacings on the half −wheels. - Replacement of the assembly bolt washers by washers with a larger diameter. - Replacement of the heat shields by heat shields which have silicone studs to avoid any contact with the wheel. Replacement of glass bead peening and chromic acid anodizing by ceramic shot peening and sulphuric acid anodizing).

Dec 15/98

Replacement of MASTINOX D40 by MOLYKOTE G-RAPID PLUS.

8620

Dec 15/98

Material of the drive blocks changed. P/N C20195162 is changed to P/N C20195162 Amdt A.

8611

May 12/00

Improvement in the protection of the half-wheels. Part number unchanged.

Apr 30/01

Introduction of Mobil Aviation Grease SHC100 as an alternate bearing grease.

Apr 30/01

New optional dust guard. Part Numbers unchanged.

0

Jul 31/01

Application of disinfectants to aircraft to help to prevent the spread of foot-and mouth disease. Informations about effects of chemicals on wheels and brake assemblies. Application and Removal Procedures.

SL F6137-32-835

0

Jul 31/03

Inspection of half-wheel attachment bolts P/N A32266.

C20563-32-3233

0

Sep 04/06

Introduction of a low fl ow valve as optional.

8625

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SB No.

REV No.

MOD No.

INCORP. DATE

TITLE

C20575-32-3232

0

Sep 04/06

Introduction of a low fl ow fill gauge valve as optional.

SL C20195-32-3242

0

Sep 04/06

Application of thread locking on in flation valve thread.

C20195-32-819

0

Sep 04/06

Information on possible half-wheel intermixing and determination of wheel assembly P/N from half-wheel P/Ns. Identification plate added on the outer half-wheel.

SL F6137-32-873

0

Jul 18/13

Introduction of new part number writing for the aircraft landing wheel bearings by the manufacturer Timken.

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TABLE OF CONTENTS PAGE INTRODUCTION .................................................................................................................. 1. Introduction ................................................................................................................... A. Layout ................................................................................................................... B. General - Change in instructions ........................................................................... C. Index of publications ............................................................................................. D. Explanation of CAUTION and WARNING statements ..........................................

INTRO 1 INTRO 1 INTRO 1 INTRO 2 INTRO 2 INTRO 3

DESCRIPTION AND OPERATION ...................................................................................... 1. Description and Operation ............................................................................................ A. General ................................................................................................................. B. Data ....................................................................................................................... C. Description ............................................................................................................

1 1 1 1 1

TESTING AND FAULT ISOLATION ..................................................................................... 1. Testing .......................................................................................................................... A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. (1) Test conditions ............................................................................................... D. Procedure .............................................................................................................. (1) Leakage test of the pressure indicator valve assembly (3-120C) .................. (2) Operation test of the pressure indicator valve assembly (3-120C) ................ (3) Leakage test of the fuse plugs (2-260) and (2-280) ...................................... (4) Inflation test ................................................................................................... 2. Fault Isolation ............................................................................................................... A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) Fault isolation of the main landing gear wheel assembly ..............................

1001 1001 1001 1001 1002 1002 1002 1002 1003 1004 1005 1006 1006 1006 1007 1007 1007

SCHEMATICS AND WIRING DIAGRAMS ........................................................................... NOT APPLICABLE DISASSEMBLY .................................................................................................................... 1. Disassembly ................................................................................................................. A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) Initial steps .................................................................................................... (2) Removal of the tire (for information only) ...................................................... (3) Removal of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) ........................................................................................ (4) Removal of the fuse plugs (2-260) and (2-280) ............................................. (5) Removal of the plugs (3-180) ........................................................................ (6) Removal of the bearing cones (2-180) and (3-080) ...................................... (7) Disassembly of the inner half-wheel assembly (2-010) ................................. (8) Disassembly of the outer half-wheel assembly (3-010) .................................

3001 3001 3001 3001 3002 3002 3002 3003

3004 3004 3004 3004 3005 3005

CLEANING ...........................................................................................................................

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TABLE OF CONTENTS (Continued) PAGE 1.

Cleaning ........................................................................................................................ A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) Cleaning of the metal parts ........................................................................... (2) Cleaning of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) and the fuse plugs (2-260) and (2-280) .......................... (3) Cleaning of the non-metal parts .................................................................... (4) Cleaning of the bearing cones (2-180) and (3-080) ...................................... Paint removal ................................................................................................................ A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) First steps ...................................................................................................... (2) Chemical procedure ...................................................................................... (3) Abrasive procedure .......................................................................................

4001 4001 4001 4002 4002 4003

4003 4004 4004 4005 4005 4005 4006 4006 4006 4006 4007

INSPECTION/CHECK .......................................................................................................... 1. Inspection/Check .......................................................................................................... A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) General .......................................................................................................... (2) Inner half-wheel sub-assembly (2-020) and the outer half-wheel assembly (3-010) ........................................................................................................... (3) Inner and outer half-wheels (2-030) and (3-020) ........................................... (4) Bearing cups (2-080) and (3-030) ................................................................. (5) Bearing cones (2-180) and (3-080) ............................................................... (6) Drive blocks (2-060) ...................................................................................... (7) Valve (3-120A) or (3-120B) or pressure indicator valve assembly (3-120C) .. (8) Fuse plugs (2-260) and (2-280) ..................................................................... (9) Bolts (1-070) .................................................................................................. (10) Nuts (1-090) .................................................................................................. (11) Dust guard (1-050) ........................................................................................ (12) Preformed packing (1-030) ............................................................................ (13) Heat shield assembly (2-130) ........................................................................ (14) Nuts (2-170) .................................................................................................. (15) Stop and bearing seal assembly (2-190) .......................................................

5001 5001 5001 5001 5002 5002 5002

5005 5006 5008 5008 5011 5011 5011 5012 5012 5013 5013 5013 5014 5014

REPAIR - GENERAL ............................................................................................................ 1. Repair - General ........................................................................................................... A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure ..............................................................................................................

6001 6001 6001 6001 6002 6002

2.

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TABLE OF CONTENTS (Continued) PAGE (1) (2) (3) (4) (5) (6) (7)

“Blend repair” procedure ............................................................................... “50 to 1” blend repair procedure .................................................................... Corrosion removal from the aluminium alloy parts ........................................ Corrosion removal from the steel parts ......................................................... Repair of cadmium plating ............................................................................. Temporary protection ..................................................................................... Symbols on fi gures ........................................................................................

6002 6002 6004 6004 6005 6005 6005

REPAIR 1 ............................................................................................................................. 1. Repair 1 - Repair of the Inner and Outer Half-wheels (2-030) and (3-020) .................. A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) General repair of light signs of corrosion or impact damage ......................... (2) Local repair of the grooves of the retaining rings of the half-wheel assemblies (2-010) and (3-010) .................................................................... (3) Local repair of the C fl ange of the inner and outer half-wheels (2-030) and (3-020) ........................................................................................................... (4) Repair of the inner and outer half-wheels (2-030) and (3-020) by chemical procedure ...................................................................................................... (5) Local repair of the hub areas on the outer diameter of the outer half-wheel (3-020) ...........................................................................................................

6009 6009 6009 6009 6009 6010 6010

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REPAIR 2 ............................................................................................................................. 1. Repair 2 - Replacement of the Bearing Cups (2-080) and (3-030) ............................... A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) Removal of the bearing cups (2-080) and (3-030) ........................................ (2) Repair of the bore of the inner and outer half-wheels (2-030) and (3-020) for the bearing cups (2-080) and (3-030) ............................................................ (3) Installation of the bearing cups (2-080) and (3-030) .....................................

6027 6027 6027 6027 6028 6028 6028

6029 6030

REPAIR 3 ............................................................................................................................. 1. Repair 3 - Repair of the Drive Block (2-060) and the Drive Block areas of the Inner Half-wheel (2-030) ........................................................................................................ A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) Removal of a drive block (2-060) .................................................................. (2) Repair of the housing of the thread insert (2-040) ......................................... (3) Repair of the housing of the locating pin (2-050) .......................................... (4) Repair of the drive block areas of the inner half-wheel (2-030) ..................... (5) Installation of a drive block ............................................................................

6037 6037

6037 6037 6038 6038 6038 6038 6039 6042 6047

REPAIR 4

6049

.............................................................................................................................

32-47-46

TOC Page 3


TABLE OF CONTENTS (Continued) PAGE 1.

Repair 4 - Repair of the housings of the Fuse plugs (2-260) in the Inner Half-wheel (2-030) .......................................................................................................................... A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) Repair of the housings of the fuse plugs (2-260) in the inner half-wheel (2-030) ...........................................................................................................

6049

6049 6049 6049 6050

6050

REPAIR 5 ............................................................................................................................. 1. Repair 5 - Repair of the housing of the Valve (3-120A) or (3-120B) or the Pressure Indicator Valve Assembly (3-120C) and the Plug (3-180) in the Outer Half-wheel (3-020) .......................................................................................................................... A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) Repair of the housing of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) and the plug (3-180) ...............................

6053 6053

6053 6053 6054 6054

6054

REPAIR 6 ............................................................................................................................. 1. Repair 6 - Repair of the Stop and Bearing Seal Assembly (2-190) .............................. A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) Repair of the stop and bearing seal assembly (2-190) ..................................

6057 6057 6057 6057 6057 6057 6057

REPAIR 7 ............................................................................................................................. 1. Repair 7 - Repair of the Dust Guard (1-050) ................................................................ A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) Repair of the dust guard (1-050) ...................................................................

6059 6059 6059 6059 6059 6060 6060

REPAIR 8 ............................................................................................................................. 1. Repair 8 - Protection ..................................................................................................... A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) Protection of the inner and outer half-wheels (2-030) and (3-020) ................

6063 6063 6063 6063 6063 6064 6064

ASSEMBLY .......................................................................................................................... 1. Assembly ...................................................................................................................... A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure ..............................................................................................................

7001 7001 7001 7001 7003 7003 TOC Page 4

32-47-46


TABLE OF CONTENTS (Continued) PAGE (1) First steps ...................................................................................................... (2) Installation of the fuse plugs (2-260) and (2-280) .......................................... (3) Installation of the bearing cone (2-180) and of the stop and bearing seal assembly (2-190) ........................................................................................... (4) Installation of the plugs (3-180) ..................................................................... (5) Installation of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) ........................................................................................ (6) Installation of the bearing cone (3-080) and the bearing seal (3-090) ........... (7) Balancing of the inner and outer half-wheels (2-030) and (3-020) ................ (8) Installation of the balance weights (2-090) and (3-040) ................................ (9) Installation of the heat shield assemblies (2-130) ......................................... (10) Check of imbalance ....................................................................................... (11) Assembly of the main landing gear wheel assembly with a tire ....................

7003 7006

7006 7006

7007 7007 7009 7009 7010 7013 7013

FITS AND CLEARANCES .................................................................................................... 1. Fits and clearances ....................................................................................................... A. General ................................................................................................................. B. Layout ................................................................................................................... C. Fits and clearances table ...................................................................................... 2. Torque values ............................................................................................................... A. General ................................................................................................................. B. Torque values table ...............................................................................................

8001 8001 8001 8001 8001 8004 8004 8004

SPECIAL TOOLS, FIXTURES, EQUIPMENT AND CONSUMABLES ................................. 1. Special tools, fi xtures and equipment ........................................................................... A. General ................................................................................................................. B. Special tools and equipment table ........................................................................ 2. Consumables ................................................................................................................

9001 9001 9001 9001 9003

SPECIAL PROCEDURES .................................................................................................... NOT APPLICABLE REMOVAL

............................................................................................................................ NOT APPLICABLE

INSTALLATION .................................................................................................................... NOT APPLICABLE SERVICING .......................................................................................................................... NOT APPLICABLE STORAGE AND TRANSPORTATION .................................................................................. 1. Storage Instructions ...................................................................................................... A. Reason for the job ................................................................................................. B. Job set-up information ........................................................................................... C. Job set-up ............................................................................................................. D. Procedure .............................................................................................................. (1) Storage ..........................................................................................................

15001 15001 15001 15001 15001 15001 15001

REWORK (SERVICE BULLETIN ACCOMPLISHMENT PROCEDURES) ........................... NOT APPLICABLE ILLUSTRATED PARTS LIST ................................................................................................ 1. Introduction to the Illustrated Parts List ........................................................................

32-47-46

10001 10001 TOC Page 5


TABLE OF CONTENTS (Continued) PAGE A. B. C. D. E.

Policy ..................................................................................................................... How to use the Illustrated Parts List ...................................................................... Revision ................................................................................................................ General ................................................................................................................. Words and Abbreviations used .............................................................................

10001 10001 10002 10003 10004

VENDOR’S CODE LIST ...............................................................................................

10005

REFERENCE ALPHANUMERICAL INDEX ..................................................................

10007

DETAILED PARTS LIST ...............................................................................................

10013

32-47-46

TOC Page 6


LIST OF ILLUSTRATIONS FIGURE

TITLE

1 2

General View .............................................................................................................. Dimensions ................................................................................................................. Description (Sheet 1 of 2) ....................................................................................... Description (Sheet 2 of 2) ....................................................................................... T.P.I.S. and Valve location ........................................................................................... Inspection areas ......................................................................................................... Dimensional check of the Inner and Outer Half-wheels (2-030) and (3-020) ............. “50 to 1” Blend repair .................................................................................................. Symbol legend ............................................................................................................ Repair areas ............................................................................................................... Repair of the Inner Half-wheel (2-030) (Sheet 1 of 3) ............................................ Repair of the Inner Half-wheel (2-030) (Sheet 2 of 3) ............................................ Repair of the Inner Half-wheel (2-030) (Sheet 3 of 3) ............................................ Repair of the Outer Half-wheel (3-020) (Sheet 1 of 3) ............................................ Repair of the Outer Half-wheel (3-020) (Sheet 2 of 3) ............................................ Repair of the Outer Half-wheel (3-020) (Sheet 3 of 3) ............................................ Local repair of the groove of the Retaining Ring (2-240) in the Inner Half-wheel Assembly (2-010) (Sheet 1 of 2) ............................................................................. Local repair of the groove of the Retaining Ring (3-110) in the OuterHalf-wheel Assembly (3-010) (Sheet 2 of 2) ............................................................................. Repair of the C fl ange of the Inner Half-wheel (2-030) ............................................... Repair of the C fl ange of the Outer Half-wheel (3-020) (Sheet 1 of 2) ................... Repair of the C fl ange of the Outer Half-wheel (3-020) (Sheet 2 of 2) ................... Local repair of the hub cap installation areas on the Outer Half-wheel (3-020) (Sheet 1 of 2) .......................................................................................................... Local repair of the hub areas on the outer diameter of the Outer Half-wheel (3-020) (Sheet 2 of 2) ............................................................................................. Repair of the Bearing Cup housing of the Inner Half-wheel (2-030) (Sheet 1 of 2) ............................................................................................................................ Repair of the Bearing Cup housing of the Inner Half-wheel (2-030) (Sheet 2 of 2) ............................................................................................................................ Repair of the Bearing Cup housing on the Outer Half-wheel (3-020) (Sheet 1 of 2) ............................................................................................................................ Repair of the Bearing Cup housing on the Outer Half-wheel (3-020) (Sheet 2 of 2) ............................................................................................................................ Repair of the housing of the Thread Insert (2-040) and of the Locating Pin (2-050) (Sheet 1 of 2) .......................................................................................................... Repair of the housing of the Thread Insert (2-040) and of the Locating Pin (2-050) (Sheet 2 of 2) .......................................................................................................... Repair of the drive key areas on the Inner Half-wheel (2-030) (Sheet 1 of 2) ........ Repair of the drive key areas on the Inner Half-wheel (2-030) (Sheet 2 of 2) ........ Corrosion removal from the drive key areas on the Inner Half-wheel (2-030) ............ Repair of the drive key boss area on the Inner Half-wheel (2-030) ............................ Installation of a Drive Block (2-060) or (2-061) or (2-062) or (2-063) ......................... Repair of the housing of the Fuse Plugs (2-260) in the Inner Half-wheel (2-030) (Sheet 1 of 2) ..........................................................................................................

4 5001 5002 6001 6002 6003

6007

6014 6015 6016

PAGE

32-47-46

3 4 5 6 7 5009 5010 6006 6007 6008 6011 6012 6013 6014 6015 6016

6018

6019 6021 6022 6023

6025

6026

6032

6033

6034

6035

6040

6041 6043 6044 6045 6046 6048

6051 LOI Page 1


LIST OF ILLUSTRATIONS (Continued) FIGURE

6019

6021 7001 7002 7003 7004 7005 7006 8001

TITLE

PAGE

Repair of the housing of the Fuse Plugs (2-260) in the Inner Half-wheel (2-030) (Sheet 2 of 2) .......................................................................................................... Repair of the housing of the Valve (3-120A) or (3-120B) or the Pressure Indicator Valve Assembly (3-120C) and the Plug (3-180) in the Outer Half-wheel (3-020) (Sheet 1 of 2) .......................................................................................................... Repair of the housing of the Valve (3-120A) or (3-120B) or the Pressure Indicator Valve Assembly (3-120C) and the Plug (3-180) in the Outer Half-wheel (3-020) (Sheet 2 of 2) .......................................................................................................... Repair of the Dust Guard (1-050) ............................................................................... Protection of the Inner Half-wheel (2-030) (Sheet 1 of 3) ....................................... Protection of the Inner Half-wheel (2-030) (Sheet 2 of 3) ....................................... Protection of the Inner Half-wheel (2-030) (Sheet 3 of 3) ....................................... Protection of the Outer Half-wheel (3-020) ................................................................. Protective treatment and lubrication ........................................................................... Balancing of the Inner and Outer Half-wheels (2-030) and (3-020) ............................ Application of sealing compound to the Heat Shield Assemblies (2-130) .................. Position of the Washers (1-080) ................................................................................. Tightening of the Bolts (1-070) in criss-cross sequence ............................................. Angle tightening method ............................................................................................. Location of fi ts .............................................................................................................

6052

6055

6056 6061 6065 6066 6067 6068 7008 7011 7012 7017 7018 7019 8003

DETAILED PARTS LIST 01 02 03

Main Landing Gear Wheel Assembly ......................................................................... Complete Inner Half-wheel ......................................................................................... Complete Outer Half-wheel ........................................................................................

32-47-46

10014 10016 10020

LOI Page 2


INTRODUCTION

TASK 32-47-46-871-801-A01 1. Introduction A. Layout (1) This manual, which includes the ILLUSTRATED PARTS LIST (IPL), is written to ATA Specification No. 2200 and in AECMA Simpli fied English (refer to the last issue of the AECMA document PSC-85-16598). (2) This manual gives the function of the component and all the instructions for its repair in a specialized workshop to put it back to the serviceable condition. (3) The procedures included in this manual are given as a guide but you can use equivalents (or better procedures) if the facilities of the repair shop make it possible. (4) This manual does not include instructions on the standard procedures, the known suppliers’ materials and calendar limits of all types (frequencies, life, storage, etc.) applicable to the component. (5) The procedures for surface treatments, protections, inspections, etc. are given in the Standard Practices Manual (SPM) 32-09-01. (6) The manual cannot include all the instructions because they were written for the usual performance of the component and its parts to which time can cause damage. (7) Use at all times, in the repair shop, safety precautions to prevent injury to personnel and damage to the component. (8) The Maintenance Task Oriented Support System (MTOSS) is used in this manual for task and subtask identi fication. The maintenance tasks and other data have special MTOSS numbers for the use of Electronic Data Processing (EDP). The user of the manual can ignore the MTOSS numbers. (9) The manual procedures were veri fied by actual performance. MESSIER-BUGATTI-DOWTY will revise them as necessary to give current data. Procedures veri fied on desk: –

TESTING AND FAULT ISOLATION: July 2013.

–

DISASSEMBLY: July 2013.

–

ASSEMBLY: July 2013.

32-47-46

INTRO Page 1

COMPONENT MAINTENANCE MANUAL C20195162 (10) The values are given in units of the International System (S.I. units) with the U.S. standard units in parentheses after the S.I. units. The conversions and abbreviations used are given, for reference, in the table that follows: S.I. UNITS

ABBREVIATIONS

U.S. STANDARD UNITS

ABBREVIATIONS

Degrees Celsius (or centigrade)

°C

Degrees Fahrenheit

°F

Millimeter

mm

Inch

in

Newton-meter

N.m

Pound force per foot or Pound force per inch

lbf.ft or lbf.in

Newton

N

Pound force

lbf

Kilogram

kg

Pound (mass)

lb

Gram

g

Ounce

oz

Mega Pascal

MPa

Kilopound per square inch

ksi

Bar

bar

Pound per square inch

psi

Square centimeter

cm²

Square inch

in²

Cubic centimeter

cm³

Cubic inch

in³

Liter

l

Gallon

US Gal

B. General - Change in instructions (1) You must tell MESSIER-BUGATTI-DOWTY of all the problems not shown in this manual to find a solution that you will use in the shortest possible time. (2) If the solution found is general and used again and again, MESSIER-BUGATTI-DOWTY will subsequently revise the manual to include it. C. Index of publications (1) This manual and its subsequent issues are shown in the INDEX OF MESSIER-BUGATTIDOWTY COMPONENT MAINTENANCE MANUAL CR46897. You can refer to this index on MESSIER-BUGATTI-DOWTY web site at www.safranmbd.com .

32-47-46

INTRO Page 2


D. Explanation of CAUTION and WARNING statements (1) Carefully read and obey all CAUTION and WARNING statements in this manual. Refer to the descriptions of these statements that follow: –

A “CAUTION” statement is given to prevent damage to the component.

–

A “WARNING” statement is given to prevent personal injury.

WARNING : THE USE OF REPLACEMENT PARTS THAT ARE NOT SPECIALLY APPROVED BY MESSIER-B UGATTI-DOWTY, OR IGNORING OF TORQUE LIMITS AND OTHER SPECIFIC VALUES GIVEN BY THIS MANUAL, CAN CAUSE PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH. USE ONLY MESSIER-BUGATTI-DOWTY APPROVED REPLACEMENT PARTS GIVEN IN THE ILLUSTRATED PARTS LIST OF THIS MANUAL.

W ARNING : THE CHEMICA LS REFERRED TO IN THIS MANUAL ARE D ANGEROUS TO THE SKIN, EYES AND RESPIRATORY TRACT. BEFORE USE OF THESE CHEMICALS, CAREFULLY READ AND OBEY INSTRUCTIONS ON EACH CHEMICAL CONTAINER AND ON THE “ MATERIAL S AFETY DATA SHEET” (USUALLY SUPPLIED WITH EACH CHEMICAL).

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INTRO Page 3



32-47-46

INTRO Page 4 Jul 18/13


DESCRIPTION AND OPERATION

TASK 32-47-46-870-801-A01 1. Description and Operation A. General (Ref. Fig. 1) (1) The main landing gear wheel assembly is a split-type assembly which is made of forged aluminium. (2) This main landing gear wheel assembly is used only with the tubeless tires. B. Data (1) Characteristics of the main landing gear wheel assembly: –

Weight: 62,9 kg (138.7 lb).

–

Dimensions: (Ref. Fig. 2).

–

Melting point of the fuse plugs installed to the web: 183 °C (361.4 °F).

–

Melting point of the fuse plugs installed to the bead seat: 300 °C (572 °F).

C. Description (Ref. Fig. 3) (Ref. Fig. 4) (1) General (a) The main landing gear wheel assembly has an outer half-wheel assembly and an inner half-wheel assembly. (b) The bolts, the washers and the nuts hold these half-wheel assemblies together. (c) A preformed packing at the half-wheel mating surfaces seals the tubewell joint. (d) A dust guard and two preformed packings prevent the entry of dirt and moisture. (e) Each half-wheel assembly has the balance weights to get correct balancing. (2) Inner half-wheel assembly (a) The inner half-wheel assembly has a bearing cone with a stop and bearing seal assembly. (b) Nine drive blocks in the inner half-wheel assembly engage the rotor assemblies of the carbon brake to turn them with the main landing gear wheel assembly. (c) Nine heat shield assemblies give protection to the inner half-wheel from the heat released by the carbon brake. (d) The web of the half-wheel has three fuse plugs. (e) The outer bead seat at the end of the drive blocks has three fuse plugs. (f) The fuse plugs in the inner half-wheel assembly have a body and eutectic material. (g) If the temperature of the main landing gear wheel assembly increases to a speci fied value, the eutectic material melts and releases the tire pressure to prevent tire to burst. (h) A preformed packing seals each fuse plug in the inner half-wheel assembly.

32-47-46

Page 1 Jul 18/13


(3) Outer half-wheel assembly (a) Outer half-wheel assembly has a bearing cone with a bearing seal (detail A). (b) A valve or the pressure indicator valve assembly installed with a preformed packing (detail B) lets to inflate the tire. (c) Two plugs installed with the preformed packings (detail C) seal the tapped connections that are 120° apart on each side of the valve or the pressure indicator valve assembly. The MESSIER-BUGATTI-DOWTY pressure transducer (T.P.I.S.) is installed in one of these tapped connections.

32-47-46

Page 2 Jul 18/13


General View FIGURE 1/GRAPHIC32-47-46-991-001-A01

32-47-46

Page 3 Jul 18/13


Dimensions FIGURE 2/GRAPHIC32-47-46-991-002-A01

32-47-46

Page 4 Jul 18/13


Description (Sheet 1 of 2) FIGURE 3/GRAPHIC32-47-46-991-003-A01

32-47-46

Page 5 Jul 18/13


Description (Sheet 2 of 2) FIGURE 3/GRAPHIC32-47-46-991-003-A01

32-47-46

Page 6 Jul 18/13


T.P.I.S. and Valve location FIGURE 4/GRAPHIC32-47-46-991-004-A01

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32-47-46

Page 8 Jul 18/13


TESTING AND FAULT ISOLATION

TASK 32-47-46-700-801-A01 1. Testing A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment (a) The table below gives the tools, fixtures and equipment necessary to do the test of the component. NOTE:

You can use alternatives for the listed items.

NOTE:

Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND CONSUMABLES section for full details.

REFERENCE

QTY

NAME

F26616000

1

Test tool for the fuse plugs (2-260) and (2-280)

H47015

1

Test plug for the pressure indicator valve assembly (3-120C)

Commercially available

1

Pressure gauge (0 to 21 bar (0 to 305 psi))


1

Inflation cage


1

Source of dry nitrogen

89901

1

Spatula

(2) Consumables (a) The table below gives the consumables necessary to do the test of the component. NOTE:


NOTE:


REFERENCE

NAME

Grease as per SAE-AMS-G-4343 or SAE-AS8660

Silicone grease

V-VP-236 (AIR 3565)

Vaseline


Dry nitrogen (99.5 % pure as per MIL-P-27401 Type 1 Grade A)

32-47-46

Page 1001 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 (3) Referenced information REFERENCE

DESIGNATION

ILLUSTRATED PARTS LIST, Fig. IPL 02

Complete Inner Half-wheel


Complete Outer Half-wheel

AIRCRAFT MAINTENANCE MANUAL (AMM)

Applicable tire inflation procedure for the aircraft

C. Job set-up SUBTASK 32-47-46-800-001-A01 (1) Test conditions (a) Do all the tests in standard test conditions: –

Ambient temperature: between 10 and 40 °C (50 and 104 °F).

–

Ambient barometric pressure: between 840 and 1070 mbar (12.18 and 15.51 psi).

–

Relative humidity: less than 85 percent.

D. Procedure (Ref. Fig. IPL 02) (Ref. Fig. IPL 03) WARNING : DO NOT GET CADMIUM IN YOUR MOUTH. CADMIUM THAT IS SWALL OWED CAN CAUSE KIDNEY DISEASE OR DISEASES OF THE REPRODUCTIVE SYSTEM.

WARNING : DO NOT BREATHE CADMIUM PARTICLES, FUMES OR DUST. THESE PARTICLES, FUMES OR DUST CAN CAUSE LUNG OR KIDNEY DISEASE.

CAUTION:

DO A CALIBRATION CHECK OF THE INSTRUMENTS BEFORE YOU USE THEM.

SUBTASK 32-47-46-790-001-A01 (1) Leakage test of the pressure indicator valve assembly (3-120C) (a) Connect the pressure indicator valve assembly (3-120C) to the tool H47015. (b) Torque the pressure indicator valve assembly (3-120C) to a load of between 20 and 23 N.m (14.8 and 17.0 lbf.ft). (c) Install a pressure gauge to the pressure indicator valve assembly (3-120C). (d) Loosen and remove the cap (3-160B) or (3-160D) from the pressure indicator valve assembly (3-120C). (e) Supply dry air or nitrogen with a pressure of between 0,35 and 0,49 bar (5 and 7 psi) (pressure read on the pressure gauge) to the pressure indicator valve assembly (3-120C). (f) Disconnect the air or nitrogen supply.

32-47-46

Page 1002 Jul 18/13


(g) Put the pressure indicator valve assembly (3-120C) assembled with the tool H47015 (without the pressure gauge) in water. (h) Make sure that there is no external leakage (no bubbles). NOTE:

A small leakage at the valve core is permitted. It must be less than three bubbles per minute, after the fi rst minute fully put in to water.

(i) Do again the steps (e) to (g) with a pressure of 14 bar (205 psi).

SUBTASK 32-47-46-700-001-A01 (2) Operation test of the pressure indicator valve assembly (3-120C) (a) Connect the pressure indicator valve assembly (3-120C) with the tool H47015 and the pressure gauge in the horizontal position. NOTE:

The horizontal position of the tool H47015 must be the same as on the aircraft and does not change the indication on the dial of the pressure indicator valve assembly (3-120C).

(b) Supply dry air or nitrogen with a pressure of between 7,0 and 7,6 bar (100 and 110 psi) to the pressure indicator valve assembly (3-120C). (c) Tap the pressure indicator valve assembly (3-120C) lightly with your fi nger. (d) Make sure that the pressure difference value as read on the dial of the pressure indicator valve assembly (3-120C) is less than 0,21 bar (3 psi). (e) Make sure that the difference between the pressure indication on the pressure gauge and the pressure indicator valve assembly (3-120C) is not more than 0,48 bar (7 psi). (f) Slowly increase the test pressure to between 13,2 and 13,8 bar (190 and 200 psi). (g) Make sure that the difference between the pressure indication on the pressure gauge and the pressure indicator valve assembly (3-120C) is not more than 0,35 bar (5 psi). (h) Increase the test pressure by 1,73 bar (25 psi) then slowly decrease this pressure to between 13,2 and 13,8 bar (190 and 200 psi). (i) Make sure that the difference between the pressure indication on the pressure gauge and the pressure indicator valve assembly (3-120C) is not more than 0,35 bar (5 psi). (j) Decrease the pressure to zero. (k) Remove the pressure indicator valve assembly (3-120C) from the tool H47015. (l) Install the cap (3-160B) or (3-160D). (m) Torque the cap (3-160B) or (3-160D) to a load of between 0,3 and 0,5 N.m (2.7 and 4.4 lbf.in).

32-47-46

Page 1003 Jul 18/13


SUBTASK 32-47-46-790-002-A01 (3) Leakage test of the fuse plugs (2-260) and (2-280) NOTE:

Do this leakage test at overhaul or replacement of the fuse plugs (2-260) and (2-280).

NOTE:

If necessary, do this test, when you do the inflation test (Ref. SUBTASK 32-47-46-790-003-A01) on the main landing gear wheel assembly.

NOTE:

Some fuse plugs (2-260) and (2-280) can have small cracks or super ficial holes or core extrusions of fuse material because of the manufacturing process.

(a) Leakage test of the fuse plugs (2-260) and (2-280) with the tool F26616000 1

Initial steps a

Apply vaseline to the preformed packings (2-250).

b

Apply silicone grease to the preformed packings (2-270).

c

Install the preformed packings (2-250) on the fuse plugs (2-260) and the preformed packings (2-270) on the fuse plugs (2-280) with the tool 89901.

d

Install the fuse plugs (2-260) and (2-280) on the tool F26616000.

e

Torque the fuse plugs (2-260) to a load of between 9 and 10 N.m (80 and 89 lbf.in).

f

Torque the fuse plugs (2-280) to a load of between 13 and 15 N.m (9.6 and 11.1 lbf.ft).

2

Supply dry air or nitrogen with a pressure of 17 bar (245 psi) to the tool F26616000.

3

Adjust the pressure to the initial value, when it becomes stable.

4

Hold the pressure for 3 minutes.

5

Make sure that the pressure does not decrease.

6

Apply a soap and water solution to the fuse plugs (2-260) and (2-280).

7

Make sure that there are no air bubbles or leakage.

8

Decrease the pressure to zero.

9

Flush the tool F26616000 with the fuse plugs (2-260) and (2-280) with cold water to remove the soap and water solution.

10 Loosen and remove the fuse plugs (2-260) and (2-280) from the tool F26616000. (b) Leakage test of the fuse plugs (2-260) and (2-280) installed on the main landing gear wheel assembly 1

Do this test with the fuse plugs (2-260) and (2-280) directly installed on the main landing gear wheel assembly and during the in flation test at maximum nominal pressure of 15,1 bar (220 psi).

2

If you can do the test of the fuse plugs (2-260) and (2-280) at 16,1 bar (235 psi), the tire pressure after stabilization is 15,1 bar (220 psi) and both test can be done at the same time.

32-47-46

Page 1004 Jul 18/13


SUBTASK 32-47-46-790-003-A01 (4) Inflation test WARNING : INFLATE THE TIRES IN A METAL CAGE.

WARNING : DO NOT INFLATE THE TIRE MORE THAN THE SPECIFIED PRESSURE. IT CAN CAUSE THE TIRE TO BURST.

CAUTION:

USE DRY NITROGEN ONLY TO INFLATE THE TIRES.

(a) Loosen and remove the cap (3-160A) or (3-160C) from the valve (3-120A) or the cap (3-160B) or (3-160D) from the valve (3-120B) or the pres sure indicator valve assembly (3-120C). (b) Inflate the tire to the speci fied pressure (refer to the instructions given in the Aircraft Maintenance Manual (AMM)). (c) Apply a solution of soap and water around the tire beads, the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C), the fuse plugs (2-260) and (2-280) and the plugs (3-180). (d) Make sure that there are no air bubbles or leakage. (e) Flush the solution of soap and water with water. (f) Keep the inflated tire and the main landing gear wheel assembly assembled together for 12 or 24 hours to get a correctly installed t ire. (g) Make sure that the pressure decreases by less than 2.5 percent after 12 hours, or 5 percent after 24 hours.

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Page 1005 Jul 18/13


TASK 32-47-46-810-801-A01 2. Fault Isolation A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment Not applicable. (2) Consumables Not applicable. (3) Referenced information REFERENCE

DESIGNATION


Main Landing Gear Wheel Assembly





SUBTASK 32-47-46-010-002-A01

Removal of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C)

SUBTASK 32-47-46-010-003-A01

Removal of the fuse plugs (2-260) and (2-280)

SUBTASK 32-47-46-010-004-A01

Removal of the plugs (3-180)

SUBTASK 32-47-46-010-001-A01

Removal of the tire (for information only)

SUBTASK 32-47-46-200-003-A01

Inner and outer half-wheels (2-030) and (3-020)

SUBTASK 32-47-46-410-003-A01

Installation of the fuse plugs (2-260) and (2-280)

SUBTASK 32-47-46-410-005-A01

Installation of the plugs (3-180)

SUBTASK 32-47-46-410-006-A01

Installation of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C)

SUBTASK 32-47-46-440-001-A01

Assembly of the main landing gear wheel assembly with a tire

SUBTASK 32-47-46-700-001-A01

Operation test of the pressure indicator valve assembly (3-120C)

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Page 1006 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 C. Job set-up Not applicable. D. Procedure (Ref. Fig. IPL 01) (Ref. Fig. IPL 02) (Ref. Fig. IPL 03) SUBTASK 32-47-46-810-001-A01 (1) Fault isolation of the main landing gear wheel assembly FAULT

Loss of pressure

POSSIBLE CAUSES

CORRECTION

The valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) is loose.

Tighten the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) (Ref. SUBTASK 32-47-46-410-006-A01).

The valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) is defective.

Replace the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) (Ref. SUBTASK 32-47-46-010-002-A01) and (Ref. SUBTASK 32-47-46-410-006-A01).

The preformed packing (3-130) is defective.

Replace the preformed packing (3-130) (Ref. SUBTASK 32-47-46-010-002-A01) and (Ref. SUBTASK 32-47-46-410-006-A01).

The fuse plugs (2-260) and (2-280) are not correctly installed.

Install the fuse plugs (2-260) and (2-280) again (Ref. SUBTASK 32-47-46-010-003-A01) and (Ref. SUBTASK 32-47-46-410-003-A01).

The preformed packings (2-250) and (2-270) are defective.

Replace the preformed packings (2-250) and (2-270) (Ref. SUBTASK 32-47-46-010-003-A01) and (Ref. SUBTASK 32-47-46-410-003-A01).

The fuse plug (2-260) and (2-280) are porous.

Replace the fuse plug (2-260) and (2-280) and the preformed packing (2-250) and (2-270) (Ref. SUBTASK 32-47-46-010-003-A01) and (Ref. SUBTASK 32-47-46-410-003-A01).



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Page 1007 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 FAULT

Incorrect indication on the pressure indicator valve assembly (3-120C)

POSSIBLE CAUSES

CORRECTION



The tubewell of the half-wheels (2-030) or (3-020) has a fatigue crack.

Examine the tubewell of the half-wheels (2-030) or (3-020) (Ref. SUBTASK 32-47-46-200-003-A01).

The pressure indicator valve assembly (3-120C) is defective.

Replace the pressure indicator valve assembly (3-120C), if the pressure value is out of tolerance (Ref. SUBTASK 32-47-46-700-001-A01), (Ref. SUBTASK 32-47-46-010002-A01) and (Ref. SUBTASK 32-47-46-410-006-A01).

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Page 1008 Jul 18/13


DISASSEMBLY

TASK 32-47-46-000-801-A01 1. Disassembly A. Reason for the job (1) Possible causes for the disassembly of the main landing gear wheel assembly –

The tire is fully worn or damaged.

–

The main landing gear wheel assembly has a damaged part or a missing part.

–

The main landing gear wheel assembly is overloaded (the main landing gear wheel assembly had a fl at tire or the other main landing gear wheel assembly on the same axle had a fl at tire).

–

The main landing gear wheel assembly is overheated (a fuse plug released the tire pressure).

NOTE:

If the main landing gear wheel assembly is overloaded, fully disassemble it. Do the inspections as written in the CHECK section. Fully disassemble the other main landing gear wheel assembly on the same axle for the same inspections.

NOTE:

If the main landing gear wheel assembly is overheated, fully disassemble it. Do the inspections on the wheel and the bolts as written in the CHECK section.

B. Job set-up information (1) Tools, fixtures and equipment (a) The table below gives the tools, fi xtures and equipment necessary to disassemble the component. NOTE:


NOTE:


REFERENCE

QTY

NAME


1

12-point socket 10/16”


1


89901

1


1

Bead breaker machine


1

Retaining ring pliers


1

Deflation tool

Spatula

(2) Consumables Not applicable.

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Page 3001 Jul 18/13


DESIGNATION







SUBTASK 32-47-46-410-009-A01

Installation of the heat shield assemblies (2-130)

C. Job set-up Not applicable. D. Procedure (Ref. Fig. IPL 01) (Ref. Fig. IPL 02) (Ref. Fig. IPL 03) WARNING : DO NOT GET CADMIUM IN YOUR MOUTH. CADMIUM THAT IS SWALL OWED CAN CAUSE KIDNEY DISEASE OR DISEASES OF THE REPRODUCTIVE SYSTEM.


CAUTION:

DISASSEMBLE THE MAIN LANDING GEAR WHEEL ASSEMBLY IN A ROOM WITHOUT DUST AND MOISTURE AND ON A CLEAN, FLAT AND SOFT SURFACE. WE RECOMMEND YOU TO USE A SMOOTH RUBBER SURFACE.

SUBTASK 32-47-46-000-001-A01 (1) Initial steps WARNING : BEFORE YOU DISASSEMBLE THE MAIN L ANDING GEAR WHEEL ASSEMBLY, DEFLATE THE TIRE.

(a) If necessary, record the information shown on the identification and amendment plate (1-100). (b) If necessary, remove the identification and amendment plate (1-100). (c) Loosen and remove the cap (3-160A) or (3-160C) from the valve (3-120A) or the cap (3-160B) or (3-160D) from the valve (3-120B) or the pressure indicator valve assembly (3-120C). (d) Gradually loosen the large valve core (3-150A) or the large valve core (3-150C) of the valve (3-120A) or the standard valve core (3-150B) or (3-150D) of the valve (3-120B) or the pressure indicator valve assembly (3-120C) to de flate the tire.

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Page 3002 Jul 18/13


(e) After you deflate the tire, remove the large valve core (3-150A) or the large valve core (3-150C) from the body of the valve (3-120A) or the standard valve core (3-150B) or (3-150D) from the body of the valve (3-120B) or the pressure indicator valve assembly (3-120C).

SUBTASK 32-47-46-010-001-A01 (2) Removal of the tire (for information only) CAUTION:

DO NOT LOOSEN THE NUTS (1-090) BEFORE YOU LOOSEN THE TIRE BEADS FROM THE FLANGES OF THE MAIN LANDING GEAR WHEEL ASSEMBLY. THE NUTS (1-090) CAN CAUSE DAMAGE TO THE MATING SURFACES OF THE COMPLETE INNER HALF-WHEEL (2-001) AND THE COMPLETE OUTER HALF-WHEEL (3-001), IF YOU LOOSEN THEM BEFORE YOU LOOSEN THE TIRE BEADS FROM THE FLANGES OF THE MAIN LANDING GEAR WHEEL ASSEMBLY.

CAUTION:

DO NOT LOOSEN THE TIRE BEADS WITH A SHARP TOOL. A SHARP TOOL CAN CAUSE DAMAGE TO THE FLANGES OF THE MAIN LANDING GEAR WHEEL ASSEMBLY.

(a) Loosen the tire beads from the fl anges of the main landing gear wheel assembly with a bead breaker machine. (b) Loosen two turns the nuts (1-090) symmetrically and make sure that the half-wheels stay parallel. CAUTION:

MAKE SURE THAT THE TWO HALF-WHEELS ARE SUFFICIENTLY DISCONNECTED TO RELEASE THE REMAINING PRESSURE.

CAUTION:

BEFORE YOU REMOVE THE BOLTS (1-070), IDENTIFY THEM. THIS IDENTIFICATION IS NECESSARY FOR THE NON-DESTRUCTIVE TEST (REFER TO THE CHECK SECTION).

CAUTION:

IF A BOLT (1-070) IS BROKEN OR MISSING, DISCARD THE BROKEN BOLT (1-070) AND TWO BOLTS (1-070) ON EACH SIDE OF THAT BOLT (1-070). DO THE NON-DESTRUCTIVE TEST OF THE REMAINING BOLTS (1-070) (REFER TO THE CHECK SECTION).

CAUTION:

IF THE BROKEN BOLT (1-070) IS MORE THAN ONE, DISCARD ALL THE BROKEN BOLTS (1-070).

(c) Loosen and remove the nuts (1-090), the washers (1-080) and the bolts (1-070). (d) Remove one half-wheel assembly. (e) Remove the dust guard (1-050) with its preformed packings (1-040). (f) Remove the preformed packings (1-030) with the tool 89901. (g) Remove the tire.

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Page 3003 Jul 18/13


SUBTASK 32-47-46-010-002-A01 (3) Removal of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) (a) Loosen and remove the body of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C). (b) Remove the preformed packing (3-130) with the tool 89901. Discard it.

SUBTASK 32-47-46-010-003-A01 (4) Removal of the fuse plugs (2-260) and (2-280) W ARNING : DISCARD AL L THE FUSE PLUGS (2-260) A ND (2-280) FROM A MAIN LANDING GEAR WHEEL ASSEMBLY WHICH WAS OVERHEATED (A FUSE PLUG (2-260) OR (2-280) RELEASED THE TIRE PRESSURE).

(a) Loosen and remove the fuse plugs (2-260) and (2-280). (b) Remove the preformed packings (2-250) from the fuse plugs (2-260) with the tool 89901. Discard them. (c) Remove the preformed packings (2-270) from the fuse plugs (2-280) with the tool 89901. Discard them.

SUBTASK 32-47-46-010-004-A01 (5) Removal of the plugs (3-180) (a) Loosen and remove the plugs (3-180). (b) Remove the preformed packings (3-170) with the tool 89901. Discard them.

SUBTASK 32-47-46-010-005-A01 (6) Removal of the bearing cones (2-180) and (3-080) (a) From the inner half-wheel assembly (2-010) 1

Remove the retaining ring (2-240).

2

Remove the retaining bush (2-230).

3

Remove the stop and bearing seal assembly (2-190).

4

Remove the bearing cone (2-180).

(b) From the outer half-wheel assembly (3-010) 1

Remove the retaining ring (3-110).

2

Remove the retaining bush (3-100).

3

Remove the bearing seal (3-090).

4

Remove the bearing cone (3-080).

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Page 3004 Jul 18/13


SUBTASK 32-47-46-040-001-A01 (7) Disassembly of the inner half-wheel assembly (2-010) (a) Loosen and remove the nuts (2-170), the washers (2-150) and the screws (2-160). (b) Remove the heat shield assemblies (2-130). (c) If necessary, remove the aluminium adhesive tape or the sealing compound with the tool 89901. Discard it. NOTE:

The aluminium adhesive tape is replaced by the sealing compound during installation of the heat shield assemblies (2-130) (Ref. SUBTASK 32-47-46-410-009-A01).

(d) Record the location and weight of the balance weights (2-090) before you remove them. (e) Loosen and remove the nuts (2-120), the washers (2-110) and the screws (2-100). (f) Remove the balance weights (2-090). (g) If you must remove the drive blocks (2-060), refer to the CHECK and the REPAIR 3 sections. (h) No more disassembly of the inner half-wheel assembly (2-010) is usually necessary. If you must remove the bearing cup (2-080) for its replacement or to repair its housing, refer to the REPAIR 2 section.

SUBTASK 32-47-46-040-002-A01 (8) Disassembly of the outer half-wheel assembly (3-010) (a) Record the location and weight of the balance weights (3-040) before you remove them. (b) Loosen and remove the nuts (3-070), the washers (3-060) and the screws (3-050). (c) Remove the balance weights (3-040). (d) No more disassembly of the outer half-wheel assembly (3-010) is usually necessary. If you must remove the bearing cup (3-030) for its replacement or to repair its housing, refer to the REPAIR 2 section.

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Page 3005 Jul 18/13



32-47-46

Page 3006 Jul 18/13


CLEANING

TASK 32-47-46-100-801-A01 1. Cleaning A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment (a) The table below gives the tools, fixtures and equipment necessary to clean the component. NOTE:


NOTE:

Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND CONSUMABLES for full details.

REFERENCE


QTY

1

NAME

Source of dry compressed air with a pressure reducing valve

(2) Consumables (a) The table below gives the consumables necessary to clean the component. NOTE:


NOTE:


REFERENCE

NAME


Clean and soft lint-free cloth

ISOPROPYL ALCOHOL

Degreasing solvent

LOCTITE CHISEL 790

Cleaning product

WD-40 or Corrosion preventive compound as per MIL-PRF-81309

Corrosion preventive oil

Grease as per MIL-PRF-81322 (AIR 4222) or MIL-G-3545 (AIR 4205) or MOBIL AVIATION Grease SHC100

Bearing grease

32-47-46

Page 4001 Jul 18/13


DESIGNATION







Standard Practices Manual (SPM) 32-09-01, section 75

Wheels and brakes cleaning/degreasing


Wheel bearing

C. Job set-up Not applicable. D. Procedure (Ref. Fig. IPL 01) (Ref. Fig. IPL 02) (Ref. Fig. IPL 03) WARNING : USE SOLVENTS/CLEANING PRODUCTS ONLY ON THE A REAS WITH A GOOD SUPPLY OF AIR.

WARNING : OBEY LOCAL SAFETY AND HEALTH INSTRUCTIONS. OBEY THE MANUFACTURER’S INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING.

WARNING : DO NOT DRINK SOLVENTS/CLEANING PRODUCTS. DO NOT SMOKE. DO NOT BREATHE THE FUMES. SOLVENTS/CLEANING PRODUCTS ARE POISONOUS AND FLAMMABLE.

WARNING : USE THE APPROVED PROTECTION FOR HANDS AND EYES WHEN YOU APPLY SOLVENTS/CL EANING PRODUCTS. IT CAN CAUSE DAMA GE TO SKIN.

WARNING : IF YOU GET SOLVENTS/CLEANING PRODUCTS ON YOUR SKIN OR IN YOUR EYES: –

FLUSH IT AWAY WITH CLEA N WATER.

–

GET MEDICAL AID.

WARNING : DO NOT GET CADMIUM IN YOUR MOUTH, CADMIUM THAT IS SWALL OWED CAN CAUSE KIDNEY DISEASE OR DISEASES OF THE REPRODUCTIVE SYSTEM.

32-47-46

Page 4002 Jul 18/13



SUBTASK 32-47-46-110-001-A01 (1) Cleaning of the metal parts CAUTION:

REMOVE THE CONTAMINATION FULLY FROM THE BOLTS (1-070) AND THE NUTS (1-090) THAT HOLD THE OUTER AND INNER HALF-WHEEL ASSEMBLIES TOGETHER. MAKE SURE THAT YOU REMOVE ALL THE PREFORMED PACKINGS. THE CONTAMINATION CAN PREVENT THE CORRECT INSPECTION OF THE BOLTS (1-070) AND THE NUTS (1-090). THE CONTAMINATION CAN CAUSE INCORRECT TORQUE GIVEN TO THE NUTS (1-090) DURING THEIR INSTALLATION ON THE BOLTS (1-070).

CAUTION:

DO NOT USE A WIRE BRUSH TO CLEAN ALUMINIUM PARTS. A WIRE BRUSH CAUSES DAMAGE TO THE ANODIZED LAYER ON THESE PARTS.

CAUTION:

USE ONLY SPECIFIED SOLVENT/CLEANING PRODUCTS, OR THEIR EQUIVALENTS. SOLVENTS/CLEANING PRODUCTS THAT ARE NOT APPROVED CAN CAUSE DAMAGE TO THE SURFACE PROTECTION.

(a) Clean the metal parts. Refer to section 75 of the SPM 32-09-01.

SUBTASK 32-47-46-110-002-A01 (2) Cleaning of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) and the fuse plugs (2-260) and (2-280) C AUTION:

USE ONLY THE APPROVED SOLVENTS/CLEANING PRODUCTS OR THEIR EQUIVALENTS. SOLVENTS/CLEANING PRODUCTS THAT ARE NOT APPROVED CAN CAUSE DAMAGE TO THE SURFACE PROTECTION.

CAUTION:

DO NOT SOAK THE VALVE (3-120A) OR (3-120B) OR THE PRESSURE INDICATOR VALVE ASSEMBLY (3-120C) AND THE FUSE PLUGS (2-260) AND (2-280) IN THE SOLVENTS/CLEANING PRODUCTS.

(a) Clean the threads of the main landing gear wheel assembly and the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) to remove contamination. (b) Use cleaning product (or equivalent) to remove the remaining signs of LOCTITE. Flush with cold, clean water and let to dry. (c) Clean the external surfaces of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) and the fuse plugs (2-260) and (2-280) with a clean and soft lint-free cloth made moist with the degreasing solvent or a soap and water solution. (d) Dry all the parts with compressed air or with a clean and soft lint-free cloth.

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SUBTASK 32-47-46-110-003-A01 (3) Cleaning of the non-metal parts CAUTION:

USE ONLY THE APPROVED SOLVENTS/CLEANING PRODUCTS OR THEIR EQUIVALENTS GIVEN IN THIS PROCEDURE TO CLEAN THE PREFORMED PACKINGS. SOLVENTS/CLEANING PRODUCTS THAT ARE NOT APPROVED CAN CAUSE DAMAGE TO THESE PARTS.

(a) Clean the non-metal parts with a clean and soft lint-free cloth made moist with the degreasing solvent or a soap and water solution. (b) Dry all the parts with compressed air or with a clean and soft lint-free cloth.

SUBTASK 32-47-46-110-004-A01 (4) Cleaning of the bearing cones (2-180) and (3-080) (a) Clean the bearing cones (2-180) and (3-080). Refer to section 77 of the SPM 32-09-01. (b) Apply corrosion preventive oil to the bearing cones (2-180) and (3-080), if you do not inspect them or fi ll them with bearing grease, in less than 2 hours after cleaning.

32-47-46

Page 4004 Jul 18/13


TASK 32-47-46-100-802-A01 2. Paint removal A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment (a) The table below gives the tools, fi xtures and equipment necessary to remove the paint from the component. NOTE:


NOTE:


REFERENCE


QTY

1

NAME


(2) Consumables (a) The table below gives the consumables necessary to remove the paint from the component. NOTE:


NOTE:


REFERENCE

NAME




Mask material

(3) Referenced information REFERENCE

DESIGNATION






Paint stripping by local application of paintex scalpex - ardrox 2526


Paint stripping by the bath method

32-47-46

Page 4005 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 REFERENCE

DESIGNATION


Paint stripping by the “seed” blasting method (Apricot stone blasting)


Paint removal by plastic media blasting

SUBTASK 32-47-46-110-006-A01

Chemical procedure

SUBTASK 32-47-46-120-001-A01

Abrasive procedure

C. Job set-up Not applicable. D. Procedure (Ref. Fig. IPL 02) (Ref. Fig. IPL 03) SUBTASK 32-47-46-110-005-A01 (1) First steps (a) If you do not remove the bearing cups (2-080) and (3-030), the bushes (2-021) and (3-021) and the drive blocks (2-060), apply mask material to the joint lines between them and the half-wheels. (b) Use the chemical procedure (Ref. SUBTASK 32-47-46-110-006-A01) or the abrasive procedure (Ref. SUBTASK 32-47-46-120-001-A01).

SUBTASK 32-47-46-110-006-A01 (2) Chemical procedure WARNING : USE THE PROTECTION EQUIPMENT FOR THE SKIN AND THE EYES BECAUSE THE PAINT REMOVER IS FLA MMABLE AND DANGEROUS TO THE EYES, THE SKIN AND THE RESPIRATORY TRACT. DO NOT LET THE PAINT REMOVER TOUCH THE SKIN FOR A LONG TIME OR A GAIN A ND AGA IN. GOOD GENERAL AIR FLOW IS USUAL LY SUFFICIENT.

CAUTION:

DO NOT USE A WIRE BRUSH TO REMOVE PAINT ON THE ALUMINIUM PARTS TO PREVENT THE ANODIZED LAYER FROM DAMAGE.

(a) Remove paint from the inner and outer half-wheels (2-030) and (3-020) with one of the following products: 1

Use paint remover. Refer to section 28 of the SPM 32-09-01.

2

Use a bath of paint remover. Refer to section 29 of the SPM 32-09-01.

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Page 4006 Jul 18/13


SUBTASK 32-47-46-120-001-A01 (3) Abrasive procedure CAUTION:

DO NOT USE AN INCORRECT MEDIA OR PROCESS TO REMOVE PAINT FROM ALUMINIUM PARTS. AN INCORRECT MEDIA OR PROCESS TO REMOVE PAINT CAN CAUSE DAMAGE TO THE ANODIZED LAYER OF THESE PARTS.

(a) Blast the inner and outer half-wheels (2-030) and (3-020). Refer to section 30 or 70 of the SPM 32-09-01. (b) After paint removal, clean the inner and outer half-wheels (2-030) and (3-020) with cold water. (c) Dry the inner and outer half-wheels (2-030) and (3-020) with compressed air or with a clean and soft lint-free cloth.

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32-47-46

Page 4008 Jul 18/13


INSPECTION/CHECK

TASK 32-47-46-200-801-A01 1. Inspection/Check A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment (a) The table below gives the tools, fixtures and equipment necessary to do a check the component. NOTE:


NOTE:


REFERENCE

QTY

NAME

J47200

1

Holding block to check the radial distortion of half-wheels


1

Conductivity test equipment


1

Eddy current inspection equipment


1

Hardness test equipment


1

Feeler gauge (0,10 mm (0.0039 in))

Commercially available Commercially available

As Required Magnifiers (for visual inspections) 1

Out-of-roundness inspection equipment

(2) Consumables (a) The table below gives the consumables necessary to do a check of the component. NOTE:


NOTE:

Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND CONSUMABLES for full details. REFERENCE

Grease as per SAE-AMS 2518

NAME

Anti-seize compound

32-47-46

Page 5001 Jul 18/13


DESIGNATION








Detection of defects by Fluorescent Penetrant Inspection (FPI)


Detection of defects by Eddy Current inspection (ET)


Detection of defects by Magnetic Particle Inspection (MPI)


Measures of hardness by penetration


Wheel bearing

SUBTASK 32-47-46-320-001-A01

“Blend repair” procedure

C. Job set-up Not applicable. D. Procedure (Ref. Fig. IPL 01) (Ref. Fig. IPL 02) (Ref. Fig. IPL 03) C AUTION:

MAKE SURE THAT ALL THE PARTS ARE CLEAN BEFORE THE CHECK. REFER TO THE CLEANING SECTION.

CAUTION:

DO THE VISUAL INSPECTION OF THE PARTS BEFORE YOU ASSEMBLE THE COMPONENT.

SUBTASK 32-47-46-200-001-A01 (1) General (a) Do an inspection for the causes that follow: 1

At each tire replacement, refer to the table below.

2

Every three tire replacements a

Do the local paint re-saturation if there is a damage in paint.

b

Replacement in case of loose or damaged stud (2-140).

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Page 5002 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 3

4

Every 5 to 7 tire replacements, refer to the table below. NOTE:

The general inspection of the main landing gear wheel assembly is let to the operator’s decision which must agree with his experience. But MESSIER-BUGATTI-DOWTY recommends to do this inspection every 5 to 7 tire replacements.

NOTE:

Intervals are based on 400 cycles between tire changes.

Signs of overloading a

The main landing gear wheel assembly was overloaded (the main landing gear wheel assembly rolled with a flat tire or the other main landing gear wheel assembly on the same axle had a flat tire), refer to the table below. NOTE:

5

If the main landing gear wheel assembly was overloaded, do the same inspections on the other main landing gear wheel assembly on the same axle.

Signs of overheating CAUTION:

a

DISCARD THE BOLTS (1-070), THE WASHERS (1-080) AND THE NUTS (1-090) FROM A MAIN LANDING GEAR WHEEL ASSEMBLY WHICH WAS OVERHEATED SUFFICIENTLY TO MAKE THE FUSE PLUGS RELEASE TIRE PRESSURE.

If there are signs of overheating (fuse melted, discoloration of the main landing gear wheel assembly surface) or if you are not sure that there was overheating, refer to the table of the recommended inspection procedures.

TIRE REPLACEMENTS PART

INSPECTION PROCEDURE

1

2

3

4

5 to 7

*

**

Inner half-wheel sub-assembly (2-020) and outer half-wheel assembly (3-010)

Visual inspection

X

X

X

X

X

X

X

Eddy current inspection

X

X

X

X

X

X

X

Inner and outer half-wheels (2-030) and (3-020)

Visual inspection

X

X

X

Penetrant inspection

X

X

X

Conductivity (IACS) test

X

X

Hardness test

X

X

Bearing cups (2-080) and (3-030)

Out-of-roundness inspection

X

Buckling

X

Visual inspection

X

X

X

X

X

X

X

Dimensional check

X

X

X

X

X

X

X

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Page 5003 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 TIRE REPLACEMENTS PART

INSPECTION PROCEDURE

1

2

3

4

5 to 7

*

**

Bearing cones (2-180) and (3-080)

Visual inspection

X

X

X

X

X

X

X

Bolt (1-070)

Visual inspection

X

X

X

X

X

X

X

X

X

X

Non-destructive test Nut (1-090)

Drive block (2-060)

Visual inspection

X

X

X

X

X

X

X

Breakaway torque check

X

X

X

X

X

X

X

Visual inspection

X

X

X

X

X

X

X

X

X

X

Magnetic Particle Inspection (MPI) Dust guard (1-050)

Visual inspection

X

X

X

X

X

X

X

Preformed packing (1-030)

Visual inspection

X

X

X

X

X

X

X

Heat shield assembly (2-130)

Visual inspection

X

X

X

X

X

X

X

Nut (2-170)

Visual inspection

X

X

X

X

X

X

X

Breakaway torque check

X

X

X

X

X

X

X

Fuse plugs (2-260) and (2-280)

Visual inspection

X

X

X

X

X

X

X

Leakage test

X

X

X

X

X

X

X

Valve (3-120A) or (3-120B) or pressure indicator valve assembly (3-120C)

Visual inspection

X

X

X

X

X

X

X

Leakage test

X

X

X

X

X

X

X

Stop and bearing seal assembly (2-190)

Visual inspection

X

X

X

X

X

X

X

* = Signs of overheating (fuse plugs melted, discoloration of main landing gear wheel assembly surface). ** = The main landing gear wheel assembly was overloaded (the main landing gear wheel assembly rolled with a fl at tire or the other main landing gear wheel assembly on the same axle had a flat tire). NOTE:

If the main landing gear wheel assembly was overloaded, do the same inspections on the other main landing gear wheel assembly on the same axle.

32-47-46

Page 5004 Jul 18/13


SUBTASK 32-47-46-200-002-A01 (2) Inner half-wheel sub-assembly (2-020) and the outer half-wheel assembly (3-010) (Ref. Fig. 5001) (a) Visual inspection 1

Make sure that there is no corrosion or damage (signs of impact, scores, scratches or notches). If there is a defect, refer to the REPAIR 1 section. NOTE:

Discard a half-wheel assembly which shows signs of rolling contact with the runway.

NOTE:

If necessary, use of a binocular (10 X magnification) or a high power magnifying glass, with the part illuminated, that there are no cracks or signs of cracks. If there is a doubt, do an eddy current inspection.

a

Areas where you find most corrosion or damage include: –

Bead seat areas that touch the tire.

–

Tubewell areas that you can see.

–

The rim of the half wheel.

–

The ventilation holes.

–

Holes for the bolts (1-070) and spotfaced areas.

–

Seal surfaces for the preformed packing (1-030).

–

Mating surfaces of the both half-wheel assemblies.

–

Seal surfaces of the ports of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) and the fuse plugs (2-260) and (2-280).

2

Make sure that the bearing cups (2-080) and (3-030) are in good condition. Refer to section 77 of the SPM 32-09-01. If there is a defect, refer to the REPAIR 2 section.

3

Make sure that a 0,10 mm (0.0039 in) feeler gauge cannot be put into a clearance between each bearing cups (2-080) and (3-030) and the bottom of its housing. If there is a defect, refer to the REPAIR 2 section.

4

Make sure that the drive blocks (2-060) are in good condition (no corrosion, signs of peening and scratches. If there is a defect, refer to the REPAIR 3 section. NOTE:

5

An indentation with a depth of 0,30 mm (0.0118 in) is permitted.

Make sure that all the drive blocks (2-060) are correctly installed. If there is a defect, refer to the REPAIR 3 section.

(b) Eddy current inspection 1

Do an eddy current inspection of each bead seat. Refer to section 41 of the SPM 32-09-01. NOTE:

2

If you use a contoured, differential-coil, bead seat probe, use the same probe to inspect the inner half-wheel sub-assembly (2-020) and the outer half-wheel assembly (3-010).

If there is a defect, discard the defective half-wheel assembly.

32-47-46

Page 5005 Jul 18/13


SUBTASK 32-47-46-200-003-A01 (3) Inner and outer half-wheels (2-030) and (3-020) (Ref. Fig. 5001) (Ref. Fig. 5002) (a) Visual inspection 1

Make sure that there is no corrosion or damage (signs of impact, scores, scratches or notches). If there is a defect, refer to the REPAIR 1 section. NOTE: a

Discard a half-wheel assembly which shows signs of rolling contact with the runway.

Areas where you fi nd most corrosion or damage include: –

Bead seat areas that touch the tire.

–

Tubewell areas.

–

The rim of the half wheel.

–

The ventilation holes.

–

Holes for the bolts (1-070) and spotfaced areas.

–

Attachment holes for the drive blocks (2-060).

–

Housing of the drive blocks (2-060).

–

Seal surfaces for the preformed packing (1-030).

–

Mating surfaces of the both half-wheels.

–

Seal surfaces of the ports of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) and the fuse plugs (2-260) and (2-280).

2

Make sure that there is no worn/damaged paint. If there is a defect, refer to the REPAIR 8 section.

3

Make sure the housing of the bushes (2-031) and (3-021) in the half-wheels are in good condition. If there is a defect, refer to the REPAIR 2 section.

4

Make sure that the drive block (2-060) areas are in good condition (no dents, peening marks, damage, scores, scratches and corrosion). If there is a defect, refer to the REPAIR 3 section.

5

Make sure that the thread inserts (2-040) are not damaged. If there is a defect, refer to the REPAIR 3 section.

6

Make sure that there is no corrosion on the surfaces of the holes for the locating pins (2-050). If there is a defect, refer to the REPAIR 3 section.

7

Make sure that there are no stripped or crushed threads on the housings for the fuse plugs (2-260) and (2-280), for the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) and for the plugs (3-180). If there is a defect, refer to the REPAIR 4 and REPAIR 5 sections.

32-47-46

Page 5006 Jul 18/13


(b) Penetrant inspection WARNING : USE THE PROTECTION EQUIPMENT FOR THE SKIN AND THE EYES BECAUSE THE PENETRANT MATERIAL IS FLAMMABLE AND DANGEROUS TO THE EYES, THE SKIN AND THE RESPIRATORY TRACT. DO NOT LET THE PENETRANT MATERIAL TOUCH THE SKIN FOR A LONG TIME OR AGAIN AND AGAIN. GOOD GENERAL AIR FLOW IS USUALLY SUFFICIENT.

1

Do the fluorescent penetrant inspection on the inner and outer half-wheels (2-030) and (3-020). Refer to section 38 of the SPM 32-09-01.

2

If there is a defect, discard the defective half-wheel.

(c) Conductivity (IACS) test 1

If there was an overheat, do a conductivity test at three locations, 120º apart, on the inner and outer half-wheels (2-030) and (3-020). Refer to section 41 of the SPM 32-09-01.

2

If the value of the conductivity test is more than 40 percent IACS or 23,2 MS/m, continue with the hardness test.

(d) Hardness test 1

If there was an overheat and that the value of the conductivity test is not in the limit range, do a hardness test at three different locations, 120° apart, on the inner half-wheel (2-030). Refer to section 76 of the SPM 32-09-01.

2

Discard the defective half-wheel if the hardness is less than 130 HB.

3

After the hardness test, remove marks in the locations where you did the test (Ref. SUBTASK 32-47-46-320-001-A01).

4

If the inner half-wheel (on the brake side) was rejected, do the hardness and conductivity tests for the outer half-wheel (installed on the valve side).

5

Discard the defective half-wheel if the hardness is less than 130 HB.

(e) Dimensional check 1

Out-of-roundness inspection a

Do an out-of-roundness inspection at the bead seat area ((Ref. Fig. 5002), detail B). If the out-of-roundness is more than 0,50 mm (0.0197 in), discard the defective half-wheel. NOTE:

2

Discard a half-wheel which shows signs of rolling contact with the runway.

Buckling a

Install the half-wheel on the tool J47200 with the mating face down.

b

Put the dial indicator feeler on a fl at area of the inner face of the bead seat.

32-47-46

Page 5007 Jul 18/13


c

Measure the distance as shown in the fi gure at some points on the inner face of the bead seat ((Ref. Fig. 5002), detail A).

d

Discard the half-wheel if the buckling is less than 0,25 mm (0.0098 in).

SUBTASK 32-47-46-200-004-A01 (4) Bearing cups (2-080) and (3-030) (a) Visual inspection 1

Do a visual inspection of the bearing cups (2-080) and (3-030). Refer to section 77 of the SPM 32-09-01. If there is a defect, discard the defective b earing cup.

2

Make sure that there is no corrosion or damage (signs of impact, signs of overheat, scores, scratches or notches) in the housing of the bear ing cups (2-080) and (3-030). If there is a defect, refer to the REPAIR 2 section.

(b) Dimensional check 1

Measure the clearance between the bottom of the bearing cup housing and the bearing cups (2-080) and (3-030).

2

Make sure that the clearance is constant and not more than 0,1 mm (0.0039 in). If not, refer to the REPAIR 2 section.

SUBTASK 32-47-46-200-005-A01 (5) Bearing cones (2-180) and (3-080) (a) Visual inspection 1

Do a visual inspection of the bearing cones (2-180) and (3-080). Refer to section 77 of the SPM 32-09-01. If there is a defect, discard the defective bearing cone.

32-47-46

Page 5008 Jul 18/13


Inspection areas FIGURE 5001/GRAPHIC32-47-46-991-005-A01

32-47-46

Page 5009 Jul 18/13


Dimensional check of the Inner and Outer Half-wheels (2-030) and (3-020) FIGURE 5002/GRAPHIC32-47-46-991-006-A01

32-47-46

Page 5010 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 SUBTASK 32-47-46-200-006-A01 (6) Drive blocks (2-060) (a) Visual inspection 1

Make sure that the drive blocks (2-060) are in a satisfactory condition and are without distortion, signs of peening, scratches and corrosion. If there is a defect, discard the defective drive block. NOTE:

An indentation with a maximum depth of 0,300 mm (0.0118 in) is acceptable.

(b) Magnetic particle inspection 1

Do a magnetic particle inspection. Refer to section 42 of the SPM 32-09-01 to fi nd possible cracks.

2

If there is a defect, discard the defective drive block.

SUBTASK 32-47-46-200-007-A01 (7) Valve (3-120A) or (3-120B) or pressure indicator valve assembly (3-120C) (a) Visual inspection 1

Make sure that the valve (3-120) is in good condition. If there is a defect, discard the defective valve (3-120).

2

Make sure that there are no crushed and stripped threads. If there is a defect, discard the defective valve (3-120).

(b) Leakage test 1

Do a leakage test of the pressure indicator valve assembly (3-120C). Refer to the TESTING AND FAULT ISOLATION section.

SUBTASK 32-47-46-200-008-A01 (8) Fuse plugs (2-260) and (2-280) (a) Visual inspection 1

Make sure that the fuse plugs (2-260) and (2-280) are in good condition. If there is a defect, discard the defective fuse plug. NOTE:

Some fuse plugs (2-260) and (2-280) can have the small cracks or super ficial holes or core extrusions of fuse material because of the manufacturing process. Do not discard such fuse plugs (2-260) and (2-280).

(b) Leakage test 1

Do a leakage test of the fuse plugs (2-260) and (2-280). Refer to the TESTING AND FAULT ISOLATION section.

32-47-46

Page 5011 Jul 18/13


SUBTASK 32-47-46-200-009-A01 (9) Bolts (1-070) WARNING : DO NOT GET CADMIUM IN YOUR MOUTH, CADMIUM THAT IS SWALLOWED CAN CAUSE KIDNEY DISEASE OR DISEASES OF THE REPRODUCTIVE SYSTEM.


(a) Visual inspection 1

Make sure that there are no stripped or crushed threads. If there is a defect, discard the bolt (1-070).

2

Make sure that there is no corrosion. If there is a defect, refer to the REPAIR GENERAL section.

(b) Non-destructive test 1

2

If you find a broken bolt (1-070) during disassembly: a

Discard the broken bolt (1-070) and two bolts (1-070) on each side of the broken bolt (1-070) (five bolts discarded).

b

Do a fluorescent penetrant inspection or eddy current inspection of all 13 remaining bolts (1-070). Refer to section 38 or 41 of the SPM 32-09-01.

c

Make sure that there are no cracks in the bolts (1-070).

d

If there is a crack in a bolt (1-070), discard all the bolts (1-070).

If you do not find a broken bolt (1-070) during disassembly: a

Do a fluorescent penetrant inspection or eddy current inspection of the bolts (1-070). Refer to section 38 or 41 of the SPM 32-09-01.

b

Make sure that there are no cracks in the bolts (1-070).

c

If there is a crack in a bolt (1-070), discard the bolt (1-070).

d

If there is a crack in more than one bolt (1-070), discard all the bolts (1-070).

SUBTASK 32-47-46-200-010-A01 (10) Nuts (1-090) (a) Visual inspection 1

Make sure that there is no stripped or crushed thread. If there is a defect, discard the nut (1-090).

2

Make sure that there is no corrosion. If there is a defect, discard the nut (1-090).

(b) Breakaway torque check NOTE:

Do the breakaway torque check of each nut (1-090) with the same bolt (1-070).

32-47-46

Page 5012 Jul 18/13


1

Lubricate Lubrica te the threads threads of the nuts nuts (1-090) (1-090) and of the bolt bolt (1-070) (1-070) with anti-sei anti-seize ze compound.

2

Tighten Tighten each nut on the bolt (1-070) (1-070) to get a minimum of two threads threads above the top of the nut (1-090).

3

Measure the minimum minimum breakaway breakaway torque torque to slowly remove the the nut (1-090). (1-090).

4

Make sure sure that the breakaway breakaway torque torque measured measured is between between 3,6 and 34, 34,0 0 N.m (2.66 (2.66 and 25.08 lbf.ft). If not, discard the nut (1-090).

SUBTASK 32-47-46-200-011-A01 (11) (11) Dust guard (1-050) (a) Visual Visual inspection 1

Out-of-roundness Out-of-roundness is permitted permitted if this this defect defect doe does s not decrease decrease the sealing sealing ef ficiency of the dust guard (1-050) in the half-wheel housing.

2

Crack Crack is permitt permitted. ed. Discard Discard the the dust guard guard (1-050 (1-050)) when it has has more than than three three cracks or when it is broken in two parts. For the repair information of the dust guard (1-050), refer to the REPAIR 7 section.

SUBTASK 32-47-46-200-012-A01 (12) Preformed packing packing (1-030) (a) Visual Visual inspection 1

Examine Examine the the preformed preformed packi packing ng (1-030) (1-030) with with a binocular binocular (10 (10 X magnification) or a high power magnification glass.

2

Make sure sure that there there is no no dent, notch or distortion distortion of the contour. contour. If there is a defect, defect, discard the preformed packing (1-030). NOTE: NOTE:

Lightly twist Lightly twist the preform preformed ed packing packing (1-030 (1-030)) locally locally every every 20 to 40 mm (0.80 to 1.57 in) to make sure that there is no damage on the preformed packing (1-030).

SUBTASK 32-47-46-200-013-A01 (13) Heat shield assembly assembly (2-130) (a) Visual Visual inspection 1

Make sure that there there are no cracks cracks and deep damages damages on the heat s shield hield assembly assembly (2-130). If there is a defect, discard the defective heat shield assembly (2-130).

2

Make sure that no studs studs (2-1 (2-140) 40) are are missin missing. g.

3

Make sure sure that that the studs studs (2-140 (2-140)) are in a good good conditio condition. n. If not, repla replace ce them. them.

32-47-46

Page 5013 Jul 18/13


SUBTASK 32-47-46-200-014-A01 (14) Nuts (2-170) (2-170) (a) Visual inspection inspection 1

Make sure that Make that there there is no strippe stripped d or crushed crushed thread thread.. If there there is a defect, defect, discard discard the nut (2-170).

2

Make sure sure that that there is no corrosion. corrosion. If there is a defect, discard the nut nut (2-170). (2-170).

(b) Breakaway Breakaway torque check NOTE: NOTE:

Do the the breaka breakaway way torqu torque e check check of each each nut nut (2-170) (2-170)..

1

Remove Remove the the greas grease e from from the nut nuts s (2-170) (2-170)..

2

Tight Tighten en each nut nut (2-170) (2-170) on the screw screw (2-160) (2-160) (that (that is not lubrica lubricated) ted) to get get a minimum of two threads above the top of the nut (2-170).

3

Measure the torque torque nec necessary essary to slowly slowly remove remove the nut (2-170). (2-170).

4

Make sure sure that the the breakaway breakaway torque torque measured measured is between between 0,22 0,22 and 2 2,00 ,00 N.m (1.95 (1.95 and 17.70 lbf.in). If not, discard the nut (2-170).

SUBTASK 32-47-46-200-015-A01 (15) Stop and bearing seal seal assembly (2-190) (a) Visual inspection inspection 1

Make sure that Make that the bearin bearing g seal (2-200 (2-200)) is not defecti defective ve or worn. worn. If there there is a defect, defect, refer to the REPAIR 6 section.

32-47-46

Page 5014 Jul 18/13


REPAIR - GENERAL

TASK 32-47-46-300-801-A01 1. Repai Repairr - Gene General ral A. Reason for the job Self-explanatory. B. Job set-u set-up p informat information ion (1) Tools, fixtures and equipment (a) The table gives gives the tools, fixtures and equipment necessary to do the maintenance of the component. NOTE: NOTE:

You can can use alter alternat natives ives for the the listed listed items items..

NOTE: NOTE:

Refer Refer to the SPECIA SPECIAL L TOOLS, TOOLS, FIXTUR FIXTURES, ES, EQUIPM EQUIPMENT ENT AND AND CONSUMABLES for full details.

REFERENCE


QTY

NAME

As Required Magnifiers (for visual inspection)

(2) Consumables Consumables (a) The table below gives the consumables necessary necessary to do the maintenance maintenance of the component. NOTE: NOTE:

You can can use alter alternat natives ives for the the listed listed items items..

NOTE: NOTE:

Refer Refer to the SPECIA SPECIAL L TOOLS, TOOLS, FIXTUR FIXTURES, ES, EQUIPM EQUIPMENT ENT AND AND CONSUMABLES section for full details.

REFERENCE

NA ME


Abrasive paper (#400 and #600 grit)

Commercially Commercially available available

Mask material

WD-40 or Corrosion preventive compound as per MIL-PRF-81309 MIL-PRF-81309

Corrosion Corrosion preventive preventive oil

(3) Referenced Referenced information information REFERENCE

DESIGNATION

ILLUST ILL USTRA RATED TED PARTS ARTS LIS LIST T, Fig. Fig. IPL IPL 01

Main Mai n Land Landin ing g Gea Gearr Whe Wheel el Assemb Assembly ly

Standard Practices Manual (SPM) 32-09-01, 32-09-01, section 21A

Corrosion removal from steel parts

32-47-46

Page 6001 Jul 18/13


DESIGNATION

Standard Standard Practices Practices Manual (SPM) 32-09-01, 32-09-01, section 22

Corrosion removal from aluminium and its alloys (passivating method)

Standard Standard Practices Practices Manual (SPM) 32-09-01, 32-09-01, section 15

Stylus cadmium plating process (Dalic Galvanoplasty or Sifco LHE process)

SUBT SUBTAS ASK K 32 32-4 -477-46 46-3 -320 20-0 -001 01-A -A01 01

“Ble “Blend nd repa repair ir”” proce rocedu dure re

SUBTASK 32-47-46-350-001-A01

Temporary protection

C. Job Job set-u set-up p Not applicable. applicable. D. Procedu Procedure re (Ref. (Ref. Fig. Fig. IPL 01) 01) WARNING WARNING : MAKE SURE THAT THAT YOU OBEY THE HEALTH HEALTH A ND SAFETY PRECAUTION PRECAUTIONS S OF THE MANUFACTURERS OF THE MATERIALS.

CAUTION: CAUTION:

MAKE SURE SURE THAT THAT ALL THE PART PARTS S ARE CLEAN BEFORE BEFORE THE REPAIR. REPAIR. REFER TO THE CLEANING SECTION.

SUBTASK 32-47-46-320-001-A01 (1) “Blend repair” repair” procedure procedure CAUTION: CAUTION:

DO NOT MAKE MAKE A SUDDEN CHANGE CHANGE IN THE THE CONTOUR CONTOUR IN REPAIRE REPAIRED D SURFACES. DO NOT MAKE A ROUGH SURFACE IN REPAIRED SURFACES. A CRACK CAN START AT A DAMAGED SURFACE THAT YOU DO NOT REPAIR OR THAT YOU DO NOT REPAIR CORRECTLY.

(a) A “blend repair” procedure gradually gradually changes the contour from the repaired surface to the adjacent initial surfaces. (b) A “blend repair” procedure removes removes a minimum quantity of metal and makes a smooth surface (without tool marks or scratches). (c) (c) Use Use fi ne-grit abrasive paper (#600) to remove the scratches made by initial blend tools or large-grit abrasive paper. paper.

SUBTASK 32-47-46-320-002-A01 (2) “50 to 1” blend repair repair procedure procedure (Ref. (Ref. Fig. Fig. 6001) 6001)

32-47-46

Page 6002 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 CAUTION: CAUTION:

DO NOT MAKE MAKE A SUDDEN CHANGE CHANGE IN THE THE CONTOUR CONTOUR IN REPAIRE REPAIRED D SURFACES. DO NOT MAKE A ROUGH SURFACE IN REPAIRED SURFACES. A CRACK CAN START AT A DAMAGED SURFACE THAT YOU DO NOT REPAIR OR THAT YOU DO NOT REPAIR CORRECTLY.

NOTE: NOTE:

A “50 to to 1” diamete diameterr for each each blend blend repair repair is is recommen recommended ded for for the fl at areas where a circular repair pattern is possible.

NOTE: NOTE:

A “50 to 1” blend blend repair repair is is not poss possible ible for areas areas that that are are not flat.

32-47-46

Page 6003 Jul 18/13


(a) Calculate Calculate a “50 to 1” diameter as follows: 1

Measure the Measure the depth depth “d” of the damage damaged d surface surface.. If the depth depth is more more than than the permitted limit, discard the part.

2

Multipl Mult iply y “d” by 50 to get the recomme recommende nded d diameter diameter “D” of the repaire repaired d surface. surface.

SUBTASK 32-47-46-320-003-A01 (3) Corrosion Corrosion removal from the aluminium alloy alloy parts CAUTION: CAUTION:

NOTE: NOTE:

DO NOT MAKE MAKE A SUDDEN SUDDEN CHANGE CHANGE IN IN THE CONTO CONTOUR UR IN REPAIRE REPAIRED D SURFACES. DO NOT MAKE A ROUGH SURFACE IN REPAIRED SURFACES. A CRACK CAN START AT A DAMAGED SURFACE OR THAT YOU DO NOT REPAIR CORRECTLY.

This proce procedur dure e is applicab applicable le to all the the levels levels of corros corrosion ion you you find on aluminium alloy parts.

(a) To remove signs of corrosion, brush or rub the part with large-grit abrasive paper (#400). (#400). (b) Obey the MINIMUM or MAXIMUM dimensions BEFORE PROTECTION (outer (outer diameter, diameter, inner diameter or thickness). (c) Obey the MINIMUM web thickness thickness limits when you locally brush or rub the contour of the part. (d) Remove the scratches scratches that are made by large-grit abrasive abrasive paper (#400) with a “blend repair” procedure. procedure. Refer to the procedure that follows: follows: (Ref. SUBTASK SUBTASK 32-47-46-320-001-A01). 32-47-46-320-001-A01 ). (e) Remove the corrosion which which stays after the operation (step (a) to (d)), by a chemical chemical procedure, with a corrosion remover. Refer to section 22 of the SPM 32-09-01 or as per SAE-AMS1640. SAE-AMS1640. (f) Make sure that the corrosion corrosion is not very large large to decrease the strength strength of the part. (g) Repair the protection protection of the part. Refer to the REPAIR REPAIR 8 section. NOTE: NOTE:

If you repai repairr the protect protection ion of the the part in more more than than 2 hours, hours, apply apply a temporary temporary protection protection to it. Refer to the procedure that that follows: (Ref. SUBT SUBTASK ASK 32-47-46-350-001-A01). 32-47-46-350-001-A01 ).

SUBTASK 32-47-46-320-004-A01 (4) Corrosion Corrosion removal from the steel parts NOTE: NOTE:

This This procedu procedure re is applica applicable ble to all all the levels levels of of corrosio corrosion n you fi nd on steel parts.

(a) Brush the part to remove the signs of corrosion. corrosion. (b) If the signs of corrosion stay, stay, rub the part with large-grit large-grit abrasive paper (#400). (#400). (c) Obey the MINIMUM or MAXIMUM dimensions dimensions BEFORE PROTECTION (outer (outer diameter, diameter, inner diameter or thickness).

32-47-46

Page 6004 Jul 18/13


(d) Obey the MINIMUM web thickness limits when you brush the contour of the part. (e) Apply a cold-phosphate treatment to the areas after you remove the corrosion from them. Refer to section 21A of the SPM 32-09-01. (f) Repair the protection of the part. Refer to the REPAIR 8 section. NOTE:

If you repair the protection of the part in more than 2 hours, apply a temporary protection to it. Refer to the procedure that follows: (Ref. SUBTASK 32-47-46-350-001-A01).

SUBTASK 32-47-46-330-001-A01 (5) Repair of cadmium plating WARNING : DO NOT GET CADMIUM IN YOUR MOUTH, CADMIUM THAT IS SWALLOWED CAN CAUSE KIDNEY DISEASE OR DISEASES OF THE REPRODUCTIVE SYSTEM.


(a) If necessary, locally repair the cadmium plating on the bolts (1-070). Refer to section 15 of the SPM 32-09-01.

SUBTASK 32-47-46-350-001-A01 (6) Temporary protection (a) Apply a corrosion preventive oil as a temporary protection to the parts which get permanent protection subsequently. NOTE:

You can easily remove the corrosion preventive oil with a cleaning product. Refer to the CLEANING section.

SUBTASK 32-47-46-300-001-A01 (7) Symbols on figures (Ref. Fig. 6002) (a) Symbols are shown on some figures to show surface finishes, position tolerances, position, etc.

32-47-46

Page 6005 Jul 18/13


“50 to 1” Blend repair FIGURE 6001/GRAPHIC32-47-46-991-007-A01

32-47-46

Page 6006 Jul 18/13


Symbol legend FIGURE 6002/GRAPHIC32-47-46-991-008-A01

32-47-46

Page 6007 Jul 18/13


Repair areas FIGURE 6003/GRAPHIC32-47-46-991-009-A01

32-47-46

Page 6008 Jul 18/13


REPAIR 1

TASK 32-47-46-300-802-A01 1. Repair 1 - Repair of the Inner and Outer Half-wheels (2-030) and (3-020) A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment Not applicable. (2) Consumables (a) The table below gives the consumables necessary to do the maintenance of the component. NOTE:


NOTE:


REFERENCE

NAME

Pumice powder

Abrasive material


Mask material


DESIGNATION








Local repair of the surface finish on aluminum alloys by chemical oxidizing with ALODINE 1200


Corrosion removal from aluminium and its alloys (passivating method)



C. Job set-up Not applicable.

32-47-46

REPAIR No. 1 Page 6009

COMPONENT MAINTENANCE MANUAL C20195162 D. Procedure (Ref. Fig. IPL 01) (Ref. Fig. IPL 02) (Ref. Fig. IPL 03) CAUTION:

MAKE SURE THAT ALL THE PARTS ARE CLEAN BEFORE REPAIR. REFER TO THE CLEANING SECTION.

SUBTASK 32-47-46-320-005-A01 (1) General repair of light signs of corrosion or impact damage (Ref. Fig. 6004) (Ref. Fig. 6005) (a) If the bearing cups (2-080) and (3-030) are not removed, apply mask material on the bearing cups (2-080) and (3-030) and to the joint lines between the bearing cups (2-080) and (3-030) and the inner and outer half-wheels (2-030) and (3-020). (b) To remove light signs of corrosion or of impact damage, repair the surfaces where necessary. Be careful to keep the dimensions in the maximum and minimum limits as in the figures. (c) If you do a repair in an area of identification of the half-wheel, record all the data shown and its position. (d) After the repair and before the protection, make the new identification mark in the same area as it was before. Stamp the identi fication data with a 3 mm (0.1181 in) type ”MINISTRESS” stamp. (e) The maximum depth of the repair on all the surface of the main landing gear wheel assembly is 0,5 mm (0.0197 in), but you must keep the dimensions in the limits given in the figures. (f) A local repair of a 25 x 25 mm (0.9842 x 0.9842 in) area is permitted if the depth of the repair is in the limits as given in the figures. (g) More than one repair is permitted in a sector of 30°, but the distance between two repaired areas must be more than 25 mm (0.9842 in). Above each sector of 30°, 70 percent of the surface of the sector must be in the limits as shown in the fi gures. NOTE:

Only two repairs are permitted on all the surface of the half-wheels.

NOTE:

This is applicable to the other 11 sectors of 30° of the main landing gear wheel assembly.

(h) Shot peen the repaired areas. Refer to the REPAIR 8 section. (i) Apply chemical oxidizer to locally repair the protection. Refer to section 14 of the SPM 32-09-01.

32-47-46



Repair of the Inner Half-wheel (2-030) (Sheet 1 of 3) FIGURE 6004/GRAPHIC32-47-46-991-010-A01

32-47-46




32-47-46




32-47-46



Repair of the Outer Half-wheel (3-020) (Sheet 1 of 3) FIGURE 6005/GRAPHIC32-47-46-991-011-A01

32-47-46




32-47-46




32-47-46


COMPONENT MAINTENANCE MANUAL C20195162 SUBTASK 32-47-46-320-006-A01 (2) Local repair of the grooves of the retaining rings of the half-wheel assemblies assemblies (2-010) and (3-010) (Ref. (Ref. Fig. Fig. 6006) 6006) CAUTION: CAUTION:

–

FOR THE INNER INNER HALF-WHEE HALF-WHEEL L ASSEMBL ASSEMBLY Y (2-010) (2-010) ONLY ONLY TWO REPAIRS REPAIRS OF MAXIMUM LENGTH 60 MM (2.36 IN) ARE PERMITTED. THE MINIMUM DISTANCE BETWEEN TWO REPAIRS MUST BE 100 MM (3.94 IN).

–

FOR THE OUTER HALF-WHEEL ASSEMBLY (3-010) (3 -010) ONLY TWO REPAIRS OF MAXIMUM LENGTH 55 MM (2.17 IN) ARE PERMITTED. THE MINIMUM DISTANCE BETWEEN TWO REPAIRS MUST BE 95 MM (3.74 IN).

(a) Do the smooth blending blending to remove the damages. Obey the maximum and minimum minimum limits given in the related fi gures. If the signs of the damage stay after blending, discard the related half-wheel. (b) Do the the fl uorescent penetrant inspection on the repaired areas. Refer to section 38 of the SPM 32-09-01. (c) Apply chemical chemical oxidizer oxidizer to locally repair the protection. protection. Refer to section 14 of the SPM 32-09-01. (d) Repair the protection. protection. Refer to the REPAIR REPAIR 8 section.

32-47-46

REPAIR REPAIR No. No. 1 Page 6017


Local repair of the groove of the Retaining Ring (2-240) in the Inner Halfwheel Assembly (2-010) (Sheet 1 of 2) FIGURE 6006/GRAPHIC32-47 6006/GRAPHIC32-47-46-991 -46-991-012-A01 -012-A01

32-47-46



Local repair of the groove of the Retaining Ring (3-110) in the OuterHalfwheel Assembly (3-010) (Sheet 2 of 2) FIGURE 6006/GRAPHIC32-47-46-991-012-A01

32-47-46

REPAIR REPAIR No. 1 Page 6019

COMPONENT MAINTENANCE MANUAL C20195162 SUBTASK 32-47-46-320-007-A01 (3) Local repair of the C fl ange of the inner and outer half-wheels (2-030) and (3-020) (Ref. Fig. 6007) (Ref. Fig. 6008) CAUTION:

THE REPAIRS MUST BE AT A MINIMUM DISTANCE OF 25,4 MM (1 IN) FROM THE HOLE TO ATTACH THE BALANCE WEIGHTS.

(a) If it is necessary to do the repair in the area of identification of the half-wheel, record the identification data marked on the half-wheel. CAUTION:

THE MAXIMUM DEPTH OF THE LOCAL REPAIRS ON THE C FLANGE AREAS OF THE INNER HALF WHEEL IS 1 MM (0.039 IN), IF NOT SPECIFIED IN THE RELATED FIGURES.

(b) Do the smooth blending to remove the damages. Obey the speci fied limits given in the related fi gure. If the signs of damage stay after the blending, discard the related half-wheel. (c) Shot peen the repaired areas. Refer to the REPAIR 8 section. (d) Do the fl uorescent penetrant inspection on the repaired areas. Refer to section 38 of the SPM 32-09-01. (e) Make the new identification mark in the same area as before. Stamp the identi fication data with a 3 mm (0.1181 in) type ”MINISTRESS” stamp. (f) Apply chemical oxidizer to locally repair the protection. Refer to section 14 of the SPM 32-09-01. (g) Repair the protection. Refer to the REPAIR 8 section.

SUBTASK 32-47-46-320-008-A01 (4) Repair of the inner and outer half-wheels (2-030) and (3-020) by chemical procedure (a) Rub with a swab soaked in a mixture made of the corrosion remover and abrasive material, diluted to 50 percent in water. Refer to section 22 of the SPM 32-09-01. (b) Flush with water. (c) Do the repair with a smooth file or a machine tool. CAUTION:

MAKE SHARP EDGES OF THE REPAIRED AREAS WITH LARGE RADII SMOOTH, TO KEEP THE INITIAL CONTOUR AS FAR AS POSSIBLE.

(d) Finish off with 400-grit aluminium oxide Al2O3 or silicon oxide SiO 2 abrasive cloth or paper.

32-47-46



Repair of the C flange of the Inner Half-wheel (2-030) FIGURE 6007/GRAPHIC32-47-46-991-013-A01

32-47-46



Repair of the C flange of the Outer Half-wheel (3-020) (Sheet 1 of 2) FIGURE 6008/GRAPHIC32-47-46-991-014-A01

32-47-46



Repair of the C flange of the Outer Half-wheel (3-020) (Sheet 2 of 2) FIGURE 6008/GRAPHIC32-47-46-991-014-A01

32-47-46


COMPONENT MAINTENANCE MANUAL C20195162 SUBTASK 32-47-46-320-009-A01 (5) Local repair of the hub areas on the outer diameter of the outer half-wheel (3-020) (Ref. Fig. 6009) CAUTION:

ONLY TWO REPAIRS ARE PERMITTED IN THE HUB CAP INSTALLATION AREA WITH A MINIMUM DISTANCE OF 100 MM (3.94 IN) BETWEEN THEM (REF. FIG. 6009).

(a) Do the smooth blending to remove the damages. Obey the specified limits given in the related fi gure. If the damages stay after the repair, discard the outer half-wheel (3-020). (b) Apply the chemical oxidizer to locally repair the protection. Refer to section 14 of the SPM 32-09-01. (c) Repair the protection. Refer to the REPAIR 8 section.

32-47-46



Local repair of the hub cap installation areas on the Outer Half-wheel (3-020) (Sheet 1 of 2) FIGURE 6009/GRAPHIC32-47-46-991-015-A01 REPAIR No. 1 Page 6025

32-47-46


Local repair of the hub areas on the outer diameter of the Outer Half-wheel (3-020) (Sheet 2 of 2) FIGURE 6009/GRAPHIC32-47-46-991-015-A01

32-47-46



REPAIR 2

TASK 32-47-46-300-803-A01 1. Repair 2 - Replacement of the Bearing Cups (2-080) and (3-030) A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment (a) The table gives the tools, fixtures and equipment necessary to do the maintenance of the component. NOTE:


NOTE:


REFERENCE

QTY

NAME

D21852-1000

1

Extractor for the bearing cup (2-080)

M21862

1



1

Oven

(2) Consumables (a) The table below gives the consumables necessary to do the maintenance of the component. NOTE:


NOTE:


REFERENCE

NAME

MOLYKOTE G-RAPID PLUS

Anti-galvanic corrosion compound

LOCTITE 242 or LOCTITE 243

Adhesive compound


Carbon dioxide ice


DESIGNATION





32-47-46



DESIGNATION


Local repair of the surface fi nish on aluminum alloys by chemical oxidizing with ALODINE 1200


Locking and bonding of mating parts with LOCTITE


Wheel bearing

SUBTASK 32-47-46-350-001-A01

Temporary protection

SUBTASK 32-47-46-320-005-A01

General repair of light signs of corrosion or impact damage

SUBTASK 32-47-46-200-004-A01

Bearing cups (2-080) and (3-030)

C. Job set-up Not applicable. D. Procedure (Ref. Fig. IPL 02) (Ref. Fig. IPL 03) CAUTION:

THE REPLACEMENT OF THE BEARING CUP (3-030) IS NOT PERMITTED, IF YOU DO A REPAIR IN AREAS ON THE OUTER DIAMETER OF THE HUB OF THE OUTER HALF-WHEEL (3-020) (REF. FIG. 6009).

CAUTION:

MAKE SURE THAT ALL THE PARTS ARE CLEAN BEFORE THE REPAIR. REFER TO THE CLEANING SECTION.

NOTE:

Repair the bearing cup housings fully or partially, remove the defects. Do the repair in the given limits (removal of corrosion, remachining of the half-wheel bores or decreasing the clearance of the bearing cups with the dimension of more than 0,1 mm (0.0039 in)).

SUBTASK 32-47-46-010-006-A01 (1) Removal of the bearing cups (2-080) and (3-030) WARNING : BEFORE YOU CONTINUE WITH THE PROCEDURE, WEAR THERMAL PROTECTIVE GLOVES AND EYE PROTECTION.

CAUTION:

DO NOT INCREASE THE TEMPERATURE OF THE INNER AND OUTER HALF-WHEELS (2-030) AND (3-020) TO MORE THAN 100 °C (212 °F). DO NOT KEEP THE INNER AND OUTER HALF-WHEELS (2-030) AND (3-020) AT THIS TEMPERATURE FOR MORE THAN 30 MINUTES. A HIGHER TEMPERATURE OR A LONGER TIME CAN CAUSE DAMAGE TO THE INNER AND OUTER HALF-WHEELS (2-030) AND (3-020).

(a) Increase the temperature of the inner half-wheel (2-030) and the outer half-wheel (3-020) in an oven to a maximum temperature of 100 °C (212 °F). REPAIR No. 2 Page 6028

32-47-46


(b) Remove the bearing cup (2-080) with the tool D21852-1000. (c) Remove the bearing cup (3-030) with the tool M21862. (d) Let the inner half-wheel (2-030) and the outer half-wheel and (3-020) in air to decrease their temperature to the ambient temperature. (e) Clean the bearing cup bores of the inner and outer half-wheels (2-030) and (3-020). Refer to the CLEANING section. (f) Clean the bearing cups (2-080) and (3-030). Refer to the CLEANING section. (g) Examine the bearing cups (2-080) and (3-030) (Ref. SUBTASK 32-47-46-200-004-A01).

SUBTASK 32-47-46-320-010-A01 (2) Repair of the bore of the inner and outer half-wheels (2-030) and (3-020) for the bearing cups (2-080) and (3-030) (Ref. Fig. 6010) (Ref. Fig. 6011) (a) Remove the deep signs of corrosion from the bore of the inner and outer half-wheels (2-030) and (3-020) (Ref. SUBTASK 32-47-46-320-005-A01). (b) Machine and remove the deep scores that have a metal pick-up. Grind off the extended metal and make sure that the depth of the scores are less than 0,3 mm (0.0118 in). NOTE:

The total area of such scores must not contain more than 30 percent of the width of the bore on the full circumference.

(c) Shot peen the repaired areas. Refer to the REPAIR 8 section. (d) Apply the chemical oxidizer to locally repair the protection. Refer to section 14 of the SPM 32-09-01. NOTE:

If you repair the protection of the part in more than 2 hours, apply a temporary protection to it. Refer to the procedure that follows: (Ref. SUBTASK 32-47-46-350-001-A01)

32-47-46



SUBTASK 32-47-46-410-001-A01 (3) Installation of the bearing cups (2-080) and (3-030) (Ref. Fig. 6010) (Ref. Fig. 6011) WARNING : BEFORE YOU CONTINUE WITH THE PROCEDURE, PUT ON THERMAL PROTECTIVE GLOVES AND EYE PROTECTION.

CAUTION:

DO NOT INCREASE THE TEMPERATURE OF THE INNER AND OUTER HALF-WHEELS (2-030) AND (3-020) TO MORE THAN 100 °C (212 °F). DO NOT KEEP THE INNER AND OUTER HALF-WHEELS (2-030) AND (3-020) AT THIS TEMPERATURE FOR LONGER THAN 30 MINUTES. A HIGHER TEMPERATURE OR A LONGER TIME CAN CAUSE DAMAGE TO THE INNER AND OUTER HALF-WHEELS (2-030) AND (3-020).

(a) First stage repair NOTE:

The first-stage repair is applicable to the inner half-wheel (2-030) whose bore diameter is less than 182,195 mm (7.1730 in).

NOTE:

The first-stage repair is applicable to the outer half-wheel (3-020) whose bore diameter is less than 169,523 mm (6.6741 in).

1

Increase the temperature of the inner and outer half-wheels (2-030) and (3-020) in an oven to a maximum temperature of 100 °C (212 °F).

2

Decrease the temperature of the bearing cups (2-080) and (3-030) in carbon dioxide ice to a temperature of – 70 °C (– 94 °F).

3

Apply a layer of anti-galvanic corrosion compound in the bearing cup bore of the inner and outer half-wheels (2-030) and (3-020).

4

Install the bearing cups (2-080) and (3-030) in their bores in the inner and outer half-wheels (2-030) and (3-020) and push them fully for 1 hour.

5

Decrease the temperature of the inner and outer half-wheels (2-030) and (3-020) in air to the ambient temperature.

6

Repair the protection. Refer to the REPAIR 8 section.

(b) Second stage repair NOTE:

The second-stage repair is applicable to the inner half-wheel (2-030) whose bore diameter is more than 182,195 mm (7.1730 in).

NOTE:

The second-stage repair is applicable to the outer half-wheel (3-020) whose bore diameter is more than 169,523 mm (6.6741 in).

NOTE:

The bushes (2-031) and (3-021) are used for the second stage repair.

1

Ream the housings of the bearing cups (2-080) and (3-030) in the inner and outer half-wheels (2-030) and (3-020) as shown in the figure.

2

Apply the protective treatment to the inner and outer half-wheels (2-030) and (3-020). Refer to the REPAIR 8 section. REPAIR No. 2 Page 6030

32-47-46


3

Machine the bushes (2-031) and (3-021) to the dimensions shown in the fi gures.

4

Increase the temperature of the inner and outer half-wheels (2-030) and (3-020) in an oven to a maximum temperature of 100 °C (212 °F).

5

Decrease the temperature of the bushes (2-031) and (3-021) in carbon dioxide ice to a temperature of – 70 °C (– 94 °F).

6

Apply a layer of adhesive compound without the activator to the outer diameter of the bushes (2-031) and (3-021). Refer to section 26 of the SPM 32-09- 01.

7

Quickly install the bushes (2-031) and (3-021) in their positions in the inner and outer half-wheels (2-030) and (3-020).

8

Push the bushes (2-031) and (3-021) and hold them in their housings for 1 hour. At standard ambient temperature (20 °C (68 °F)), the curing times are:

9

–

3 hours before you can touch or move the inner and outer half-wheels (2-030) and (3-020).

–

24 hours (full curing) before you machine the bushes (2-031) and (3-021).

Machine the bushes (2-031) and (3-021) to the dimensions shown in the fi gures.

10 Apply chemical oxidizer to locally repair the protection. Refer to section 14 of the SPM 32-09-01. 11 Increase the temperature of the inner and outer half-wheels (2-030) and (3-020) in an oven to a maximum temperature of 100 °C (212 °F). 12 Put the bearing cups (2-080) and (3-030) in carbon dioxide ice to decrease their temperature to – 70 °C (– 94 °F). 13 Apply a layer of anti-galvanic corrosion compound in the bearing cup bore of the inner and outer half-wheels (2-030) and (3-020). 14 Install the bearing cups (2-080) and (3-030) in their housings in the inner and outer half-wheels (2-030) and (3-020) and push it fully for 1 hour. 15 Let the inner and outer half-wheels (2-030) and (3-020) in air to decrease their temperature to ambient temperature. 16 Make sure that the interference fi t between the bearing cup (2-080) and the bore is between 0,367 and 0,447 mm (0.0144 and 0.0176 in) for the inner half-wheel (2-030). 17 Make sure that the interference fi t between the bearing cup (3-030) and the bore is between 0,339 and 0,425 mm (0.0133 and 0.0167 in) for the outer half-wheel (3-020).

32-47-46



Repair of the Bearing Cup housing of the Inner Half-wheel (2-030) (Sheet 1 of 2) FIGURE 6010/GRAPHIC32-47-46-991-016-A01

32-47-46



Repair of the Bearing Cup housing of the Inner Half-wheel (2-030) (Sheet 2 of 2) FIGURE 6010/GRAPHIC32-47-46-991-016-A01

32-47-46

REPAIR REPAIR No. 2 Page 6033


Repair of the Bearing Cup housing on the Outer Half-wheel (3-020) (Sheet 1 of 2) FIGURE 6011/GRAPHIC32-47-46-991-017-A01

32-47-46



Repair of the Bearing Cup housing on the Outer Half-wheel (3-020) (Sheet 2 of 2) FIGURE 6011/GRAPHIC32-47-46-991-017-A01

32-47-46




32-47-46

REPAIR No. 2 Page 6036 Jul 18/13


REPAIR 3

TASK 32-47-46-300-804-A01 1. Repair 3 - Repair of the Drive Block (2-060) and the Drive Block areas of the Inner Half-wheel (2-030) A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment (a) The table gives the tools, fixtures and equipment necessary to do the maintenance of the component. NOTE:


NOTE:


REFERENCE

QTY

Q47749

1


1

NAME

Guide for the installation of the drive blocks (2-060)

Oven



NOTE:


REFERENCE

NAME




Adhesive compound


DESIGNATION





32-47-46



DESIGNATION





C. Job set-up Not applicable. D. Procedure (Ref. Fig. IPL 02) CAUTION:


SUBTASK 32-47-46-010-007-A01 (1) Removal of a drive block (2-060) (a) Remove the metal peened in the recess in the drive block (2-060). (b) Loosen and remove the screw (2-070). (c) Remove the drive block (2-060). (d) Remove the locating pin (2-050).

SUBTASK 32-47-46-320-011-A01 (2) Repair of the housing of the thread insert (2-040) (Ref. Fig. 6012) (a) Remove the thread insert (2-040). (b) Machine the housing for the threaded bushing (2-034) to the dimensions shown in the figure. (c) Apply chemical oxidizer to locally repair the protection. Refer to section 14 of the SPM 32-09-01. (d) Apply a layer of adhesive compound to the threaded bushing (2-034). Refer to section 26 of the SPM 32-09-01. (e) Install the threaded bushing (2-034). (f) Repair the protection. Refer to the REPAIR 8 section.

32-47-46



SUBTASK 32-47-46-320-012-A01 (3) Repair of the housing of the locating pin (2-050) (Ref. Fig. 6012) (a) Machine the area to remove the corrosion to the dimensions as shown in the fi gure. (b) Shot peen the repaired areas. Refer to the REPAIR 8 section. (c) Apply chemical oxidizer to locally repair the protection. Refer to section 14 of the SPM 32-09-01. (d) Repair the protection. Refer to the REPAIR 8 section.

32-47-46



Repair of the housing of the Thread Insert (2-040) and of the Locating Pin (2-050) (Sheet 1 of 2) FIGURE 6012/GRAPHIC32-47-46-991-018-A01 REPAIR No. 3 Page 6040

32-47-46


Repair of the housing of the Thread Insert (2-040) and of the Locating Pin (2-050) (Sheet 2 of 2) FIGURE 6012/GRAPHIC32-47-46-991-018-A01

32-47-46


COMPONENT MAINTENANCE MANUAL C20195162 SUBTASK 32-47-46-320-013-A01 (4) Repair of the drive block areas of the inner half-wheel (2-030) (a) Repair of the drive key areas (Ref. Fig. 6013) 1

If the drive keys of the inner half-wheel (2-030) show signs of corrosion or distortion, you can do a repair to install the drive blocks at repair size (three available stages).

2

Machine the lateral surfaces of the drive keys to the dimension H, related to the repair stage.

3

Shot peen the repaired areas. Refer to the REPAIR 8 section.

4

Apply chemical oxidizer to locally repair the protection. Refer to section 14 of the SPM 32-09-01.

5


(b) Repair of the areas around the drive keys (Ref. Fig. 6014) 1

Do the local blending in the areas shown in the figure to a depth not more than 0,5 mm (0.02 in) to remove the corrosion.

2


3

Do the fluorescent penetrant inspection on the repaired areas. Refer to section 38 of the SPM 32-09-01.

4


5


(c) Repair of the drive key boss area (Ref. Fig. 6015) CAUTION:

DO NOT REPAIR THE DRIVE KEY BOSS AREAS INSTALLED WITH THE FUSE PLUGS (2-280).

1

Do the smooth blending to remove the damages. Obey the speci fied limits given in the related figure.

2


3

Do the fluorescent penetrant inspection on the repaired areas. Refer to section 38 of the SPM 32-09-01.

4


5


32-47-46



Repair of the drive key areas on the Inner Half-wheel (2-030) (Sheet 1 of 2) FIGURE 6013/GRAPHIC32-47-46-991-019-A01

32-47-46



Repair of the drive key areas on the Inner Half-wheel (2-030) (Sheet 2 of 2) FIGURE 6013/GRAPHIC32-47-46-991-019-A01

32-47-46



Corrosion removal from the drive key areas on the Inner Half-wheel (2-030) FIGURE 6014/GRAPHIC32-47-46-991-020-A01

32-47-46



Repair of the drive key boss area on the Inner Half-wheel (2-030) FIGURE 6015/GRAPHIC32-47-46-991-021-A01

32-47-46


COMPONENT MAINTENANCE MANUAL C20195162 SUBTASK 32-47-46-410-002-A01 (5) Installation of a drive block (Ref. Fig. 6016) (a) Measure the dimension H (stage of repair) and select the required drive block. –

Stage 1: Drive block (2-061).

–


–


(b) Install the tool Q47749 into the housing of the screw (2-070) but do not tighten. NOTE:

This is to set the drive block in position.

(c) Apply a layer of anti-galvanic corrosion compound to the locating pin (2-050). (d) Install the locating pin (2-050) in its housing in the inner half-wheel (2-030). (e) Apply a layer of anti-galvanic corrosion compound to the drive block of the half-wheel. CAUTION:

DO NOT INCREASE THE TEMPERATURE OF THE DRIVE BLOCKS TO MORE THAN 160 °C (320 °F).

(f) Increase the temperature of the drive block (2-061) or (2-062) or (2-063) in an oven. (g) Quickly install the drive block (2-060) or (2-061) or (2-062) in its position on the inner half-wheel (2-030). (h) Remove the tool Q47749. (i) Apply a layer of anti-galvanic corrosion compound to the internal threads and to the bottom of the hole for the screw (2-070). (j) Apply a layer of anti-galvanic corrosion compound to the screw (2-070). (k) Install the screw (2-070). (l) Torque the screw (2-070) to a load of between 6,5 and 8,0 N.m (57.5 and 70.8 lbf.in). (m) Peen a small amount of metal from the screw head into the recess in the drive block to lock the screw (2-070).

32-47-46



Installation of a Drive Block (2-060) or (2-061) or (2-062) or (2-063) FIGURE 6016/GRAPHIC32-47-46-991-022-A01

32-47-46



REPAIR 4

TASK 32-47-46-300-805-A01 1. Repair 4 - Repair of the housings of the Fuse plugs (2-260) in the Inner Half-wheel (2-030) A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment (a) The table gives the tools, fixtures and equipment necessary to do the maintenance of the component. NOTE:


NOTE:


REFERENCE

QTY

89901

1

NAME

Spatula



NOTE:


REFERENCE


NAME

Silicone grease


DESIGNATION






32-47-46


COMPONENT MAINTENANCE MANUAL C20195162 D. Procedure (Ref. Fig. IPL 02) CAUTION:


SUBTASK 32-47-46-320-014-A01 (1) Repair of the housings of the fuse plugs (2-260) in the inner half-wheel (2-030) (Ref. Fig. 6017) (a) Machine the hole to the dimensions shown in the figure. (b) Shot peen the repaired areas. Refer to the REPAIR 8 section. (c) Apply chemical oxidizer to locally repair the protection. Refer to section 14 of the SPM 32-09-01. (d) Install the preformed packing (2-033) on the seat (2-032) with the tool 89901. (e) Apply a layer of silicone grease to the seat (2-032). (f) Install the seat (2-032) in the inner half-wheel (2-030). (g) Torque the seat (2-032) to a load of between 10 and 15 N.m (7.4 and 11.1 lbf.ft). (h) Repair the protection. Refer to the REPAIR 8 section.

32-47-46



Repair of the housing of the Fuse Plugs (2-260) in the Inner Half-wheel (2-030) (Sheet 1 of 2) FIGURE 6017/GRAPHIC32-47-46-991-023-A01 REPAIR No. 4 Page 6051

32-47-46


Repair of the housing of the Fuse Plugs (2-260) in the Inner Half-wheel (2-030) (Sheet 2 of 2) FIGURE 6017/GRAPHIC32-47-46-991-023-A01

32-47-46



REPAIR 5

TASK 32-47-46-300-806-A01 1. Repair 5 - Repair of the housing of the Valve (3-120A) or (3-120B) or the Pressure Indicator Valve Assembly (3-120C) and the Plug (3-180) in the Outer Half-wheel (3-020) A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment (a) The table gives the tools, fixtures and equipment necessary to do the maintenance of the component. NOTE:


NOTE:


REFERENCE

QTY

89901

1

NAME

Spatula



NOTE:


REFERENCE


NAME

Silicone grease


DESIGNATION


Complete Outer Half -wheel



32-47-46


COMPONENT MAINTENANCE MANUAL C20195162 C. Job set-up Not applicable. D. Procedure (Ref. Fig. IPL 03) CAUTION:


SUBTASK 32-47-46-320-015-A01 (1) Repair of the housing of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) and the plug (3-180) (Ref. Fig. 6018) (a) Machine the hole to the dimensions shown in the figure. (b) Shot peen the repaired areas. Refer to the REPAIR 8 section. (c) Apply chemical oxidizer locally to repair the protection. Refer to section 14 of the SPM 32-09-01. (d) Repair the protection. Refer to the REPAIR 8 section. (e) Install the preformed packing (3-023) on the union (3-022) with the tool 89901. (f) Apply a layer of silicone grease to the union (3-022). (g) Install the union (3-022) in the outer half-wheel (3-020). (h) Torque the union (3-022) to a load of between 25 and 30 N.m (18.4 and 22.1 lbf.ft).

32-47-46



Repair of the housing of the Valve (3-120A) or (3-120B) or the Pressure Indicator Valve Assembly (3-120C) and the Plug (3-180) in the Outer Half-wheel (3-020) (Sheet 1 of 2) FIGURE 6018/GRAPHIC32-47-46-991-024-A01 REPAIR No. 5 Page 6055

32-47-46


Repair of the housing of the Valve (3-120A) or (3-120B) or the Pressure Indicator Valve Assembly (3-120C) and the Plug (3-180) in the Outer Half-wheel (3-020) (Sheet 2 of 2) FIGURE 6018/GRAPHIC32-47-46-991-024-A01 REPAIR No. 5 Page 6056

32-47-46


REPAIR 6

TASK 32-47-46-300-807-A01 1. Repair 6 - Repair of the Stop and Bearing Seal Assembly (2-190) A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment Not applicable. (2) Consumables Not applicable. (3) Referenced information REFERENCE


DESIGNATION


C. Job set-up Not applicable. D. Procedure (Ref. Fig. IPL 02) CAUTION:


SUBTASK 32-47-46-320-016-A01 (1) Repair of the stop and bearing seal assembly (2-190) (a) Drill and remove the rivets (2-220) to disassemble the stop and bearing seal assembly (2-190). (b) Install a new bearing seal (2-200) on the stop (2-210). CAUTION:

THE RIVETS (2-220) MUST BE FLUSH WITH THE FACES OF THE BEARING SEAL (2-200) AND OF THE STOP (2-210).

(c) Install the rivets (2-220) to assemble the bearing seal (2-200) and the stop (2-210).

32-47-46




32-47-46



REPAIR 7

TASK 32-47-46-300-808-A01 1. Repair 7 - Repair of the Dust Guard (1-050) A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment Not applicable. (2) Consumables (a) The table below gives the consumables necessary to do the maintenance of the component. NOTE:


NOTE:


REFERENCE

NAME


Aluminium adhesive tape

ISOPROPYL ALCOHOL

Degreasing solvent



DESIGNATION



32-47-46


COMPONENT MAINTENANCE MANUAL C20195162 D. Procedure (Ref. Fig. IPL 01) CAUTION:


SUBTASK 32-47-46-320-017-A01 (1) Repair of the dust guard (1-050) (Ref. Fig. 6019) CAUTION:

ONLY THREE CRACKS ARE PERMITTED ON THE DUST GUARD (1-050). IF THERE ARE MORE THAN THREE CRACKS, DISCARD THE DUST GUARD (1-050).

CAUTION:

IF THE OUT-OF-ROUNDNESS IS NOT IN THE LIMITS, DISCARD THE DUST GUARD (1-050).

CAUTION:

MAKE SURE THAT THE MINIMUM DISTANCE BETWEEN TWO REPAIRS IS MORE THAN OR EQUAL TO 50 MM (2 IN).

CAUTION:

MAKE SURE THAT THE DISTANCE BETWEEN THE STOP HOLE AND THE INTERNAL EDGE OF THE PREFORMED PACKING GROOVES ON THE DUST GUARD (1-050) IS MORE THAN OR EQUAL TO 15 MM (0.6 IN) MINIMUM.

(a) Drill a stop hole of diameter 5 mm (0.2 in) at the end of the crack. (b) Clean the dust guard (1-050) with the degreasing solvent. CAUTION:

MAKE SURE THAT YOU INSTALL THE ALUMINIUM ADHESIVE TAPE AS SHOWN IN THE FIGURE.

CAUTION:

DO NOT CUT THE ALUMINIUM ADHESIVE TAPE DIRECTLY ON THE DUST GUARD (1-050).

(c) Install the aluminium adhesive tape on the internal diameter of the area of the dust guard (1-050) to prevent the entry of the dust.

32-47-46



Repair of the Dust Guard (1-050) FIGURE 6019/GRAPHIC32-47-46-991-025-A01

32-47-46




32-47-46



REPAIR 8

TASK 32-47-46-300-809-A01 1. Repair 8 - Protection A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment Not applicable. (2) Consumables Not applicable. (3) Referenced information REFERENCE

DESIGNATION










Glass bead peening of light alloy parts

Standard Practices Manual (SPM) 32-09-01, section 36C

Two-coat water reducible/low VOC flexible epoxy/polyurethane paint scheme

Standard Practices Manual (SPM) 32-09-01, section 61A

High temperature-resistant water reducible paint


Ceramic shot peening of light alloy parts


32-47-46


COMPONENT MAINTENANCE MANUAL C20195162 D. Procedure (Ref. Fig. IPL 01) (Ref. Fig. IPL 02) (Ref. Fig. IPL 03) WARNING : MAKE SURE THAT YOU OBEY AL L THE HEALTH AND SAFETY PRECAUTIONS OF THE MANUFACTURERS OF MATERIALS.

WARNING : MAKE SURE THAT ALL THE PARTS ARE CLEA N BEFORE THE REPAIR. REFER TO THE CLEANING SECTION.

SUBTASK 32-47-46-380-001-A01 (1) Protection of the inner and outer half-wheels (2-030) and (3-020) (Ref. Fig. 6020) (Ref. Fig. 6021) (a) Apply chemical oxidizer to locally repair the protection. Refer to section 14 of the SPM 32-09-01. (b) Shot peen the repaired areas. Refer to section 17 or 69 of the SPM 32-09-01. (c) Do the grit blasting on the drive blocks if there is a damage to the nickel plating. (d) If necessary, apply heat resistant paint on the nickel plated areas on the drive blocks. Refer to section 61A of the SPM 32-09-01. NOTE:

Make sure that the heat resistant paint overlaps the nickel plating in good condition by a minimum distance of 1 mm (0.0039 in).

(e) Apply the full paint scheme as shown in the figure. Refer to section 36C of the SPM 32-09-01.

32-47-46



Protection of the Inner Half-wheel (2-030) (Sheet 1 of 3) FIGURE 6020/GRAPHIC32-47-46-991-026-A01

32-47-46




32-47-46




32-47-46



Protection of the Outer Half-wheel (3-020) FIGURE 6021/GRAPHIC32-47-46-991-027-A01

32-47-46



ASSEMBLY

TASK 32-47-46-400-801-A01 1. Assembly A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment (a) The table below gives the tools, fixtures and equipment necessary to assemble the component. NOTE:


NOTE:


REFERENCE

QTY

NAME


1



1



1

Automatic wrench machine (optional)


1

Angle measuring tool

F26618000

1

Half-wheel balancing shaft


1



1

Inflation cage


1

Retaining ring pliers


1

Source of dry nitrogen


1

Torque wrench

89901

1

Spatula

32-47-46

Page 7001 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 (2) Consumables (a) The table below gives the consumables necessary to assemble the component. NOTE:


NOTE:


REFERENCE

NAME




Dry nitrogen (99.5 % pure as per MIL-P-27401 Type 1 Grade A)

Grease as per MIL-PRF-81322 (AIR 4222) or MIL-G-3545 (AIR 4205) or MOBIL AVIATION Grease SHC100

Bearing grease

V-VP-236 (AIR 3565)

Vaseline

Grease as per SAE-AMS 2518

Anti-seize compound

Grease as per MIL-PRF-83483

Anti-seize compound


Silicone grease



RTV 106

Sealing compound


Adhesive compound


DESIGNATION








Local repair of the surface fi nish on aluminum alloys by chemical oxidizing with ALODINE 1200




Bonding of mating parts with araldite

Standard Practices Manual (SPM) 32-09-01, section 36C

Two-coat water reducible/low VOC flexible epoxy/polyurethane paint scheme


Marking of parts and assemblies

32-47-46

Page 7002 Jul 18/13


DESIGNATION

SUBTASK 32-47-46-790-002-A01

Leakage test of the fuse plugs (2-260) and (2-280)

SUBTASK 32-47-46-790-003-A01

Inflation test

AIRCRAFT MAINTENANCE MANUAL (AMM)

Applicable tire inflation procedure for the aircraft

C. Job set-up Not applicable. D. Procedure (Ref. Fig. IPL 01) (Ref. Fig. IPL 02) (Ref. Fig. IPL 03) WARNING : DO NOT GET CADMIUM IN YOUR MOUTH, CADMIUM THAT IS SWALL OWED CAN CAUSE KIDNEY DISEASE OR DISEASES OF THE REPRODUCTIVE SYSTEM.


CAUTION:

MAKE SURE THAT ALL THE PARTS ARE CLEAN BEFORE THE ASSEMBLY. REFER TO THE CLEANING SECTION.

CAUTION:

ASSEMBLE THE MAIN LANDING GEAR WHEEL ASSEMBLY IN A ROOM WITHOUT DUST AND MOISTURE AND ON A CLEAN, FLAT, SOFT SURFACE. WE RECOMMEND YOU TO USE A SMOOTH RUBBER SURFACE.

SUBTASK 32-47-46-400-001-A01 (1) First steps (Ref. Fig. 7001) (a) General instructions: 1

Before you assemble the component, make sure that the parts are clean. If necessary, remove the temporary protection. Refer to the CLEANING section.

32-47-46

Page 7003 Jul 18/13


(b) Special instructions for the installation of the preformed packings: CAUTION:

DISCARD A PREFORMED PACKING WHICH SHOWS CONTAMINATION WITH GREASE OR OIL, OR DISTORTION OF THE CONTOUR.

CAUTION:

EXAMINE THE SELF-LOCKING FUNCTION OF ALL THE SELF-LOCKING NUTS. FOR THE NUTS (2-170), REFER TO THE CHECK SECTION. FOR THE OTHER SELF-LOCKING NUTS AND ALSO THE NUTS (2-170), USE THE PROCEDURE THAT FOLLOWS:

1

2

3

–

MANUALLY TIGHTEN THE SELF-LOCKING NUTS ON THEIR RELATED SCREWS WITHOUT GREASE.

–

EXAMINE THE POSITION OF THE SELF LOCKING NUTS ON THEIR RELATED SCREWS.

–

DISCARD THE NUTS WHEN TWO OR MORE THREADS OF THE SCREWS ARE ABOVE THE TOP OF THE NUTS.

Before the installation of a preformed packing –

Carefully clean the threads, tools, and all surfaces that can touch the preformed packing during the assembly (refer to the CLEANING section).

–

Carefully examine the surfaces on which you install it. Replace the parts that show non-repaired damage.

Installation of a preformed packing –

Apply a layer of vaseline or silicone grease to the preformed packing.

–

Use the tool 89901 to install the preformed packing.

After the installation of a preformed packing: –

Rub the preformed packing with the hand to make the stress equal around the full preformed packing.

(c) Special instructions for the installation of the identification and amendment plates: 1

Write on the new identification and amendment plates all the data shown on the old plates. If necessary, add the new identi fication and amendment data to agree with the overhaul of the component.

32-47-46

Page 7004 Jul 18/13


WARNING : USE SOLVENTS/CLEANING PRODUCTS ONLY ON THE AREAS WITH A GOOD SUPPLY OF AIR.

WARNING : OBEY LOCAL SAFETY AND HEALTH INSTRUCTIONS. OBEY THE MANUFACTURER’S INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING.

WARNING : DO NOT DRINK SOLVENTS/CLEANING PRODUCTS. DO NOT SMOKE. DO NOT BREATHE THE FUMES. SOLVENTS/CLEANING PRODUCTS ARE POISONOUS AND FLA MMABL E.

WARNING : USE THE APPROVED PROTECTION FOR HANDS A ND EYES WHEN YOU APPLY SOLVENTS/CLEANING PRODUCTS. IT CAN CAUSE DAMAGE TO SKIN.

WARNING : IF YOU GET SOLVENTS/CLEANING PRODUCTS ON YOUR SKIN OR IN YOUR EYES:

2

–

GET MEDICA L AID.

The locations of the identification and amendment plates are recorded in the DISASSEMBLY section.

Dry the surfaces with compressed air or with a clean and soft lint-free cloth.

CAUTION:

4

FLUSH IT AWAY WITH CLEA N WATER.

Clean the surfaces where you install the identification and amendment plates (1-100). Refer to section 59 of the SPM 32-09-01. NOTE:

3

–

CONTAMINATION OF THE ADHESIVE ON THE REAR FACE OF THE IDENTIFICATION AND AMENDMENT PLATES (1-100) CAN CAUSE THEM TO COME OFF. DO NOT TOUCH THE ADHESIVE WITH YOUR FINGERS.

Install the identification and amendment plate (1-100) at their recorded positions. Refer to section 27 of the SPM 32-09-01.

32-47-46

Page 7005 Jul 18/13


SUBTASK 32-47-46-410-003-A01 (2) Installation of the fuse plugs (2-260) and (2-280) (Ref. Fig. 7001) NOTE:

You must do a leakage test of the fuse plugs (2-260) and (2-280) (Ref. SUBTASK 32-47-46-790-002-A01).

(a) Lubricate the parts as shown in the figure (Ref. Fig. 7001). NOTE:

The lubricant compound depends on the color of the preformed packings: –

Use vaseline as per V-VP-236 (AIR 3565) with the red preformed packings.

–

Use silicone grease as per SAE-AMS-G-4343 or SAE-AS8660 with the black preformed packings.

(b) Install the preformed packings (2-250) on the fuse plugs (2-260) with the tool 89901. (c) Install the fuse plugs (2-260). (d) Torque the fuse plugs (2-260) to a load of between 9 and 10 N.m (80 and 89 lbf.in). (e) Install the preformed packings (2-270) on the fuse plugs (2-280) with the tool 89901. (f) Install the fuse plugs (2-280). (g) Torque the fuse plugs (2-280) to a load of between 13 and 15 N.m (9.6 and 11.1 lbf.ft).

SUBTASK 32-47-46-410-004-A01 (3) Installation of the bearing cone (2-180) and of the stop and bearing seal assembly (2-190) (Ref. Fig. 7001) (a) Lubricate the parts as shown in the figure (Ref. Fig. 7001). (b) Install the bearing cone (2-180) in the inner half-wheel assembly (2-010). (c) Install the stop and bearing seal assembly (2-190) in the inner half-wheel assembly (2-010). (d) Install the retaining bush (2-230). (e) Install the retaining ring (2-240) to keep the retaining bush (2-230) in its position.

SUBTASK 32-47-46-410-005-A01 (4) Installation of the plugs (3-180) (Ref. Fig. 7001) (a) Lubricate the parts as shown in the figure (Ref. Fig. 7001). (b) Install the preformed packings (3-170) on the plugs (3-180) with the tool 89901. (c) Install the plugs (3-180). (d) Torque the plugs (3-180) to a load of between 20 and 23 N.m (14.8 and 17.0 lbf.ft).

32-47-46

Page 7006 Jul 18/13


SUBTASK 32-47-46-410-006-A01 (5) Installation of the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) (Ref. Fig. 7001) (a) Lubricate the parts as shown in the figure (Ref. Fig. 7001). (b) Install the large valve core (3-150A) or the large valve core (3-150C) on the valve (3-120A) or the standard valve core (3-150B) or (3-150D) on the valve (3-120B) or the pressure indicator valve assembly (3-120C) and turn it. –

Torque the large valve core (3-150A) or the large valve core (3-150C) to a load of between 0,4 and 0,7 N.m (3.5 and 6.2 lbf.in).

–

Torque the standard valve core (3-150B) or (3-150D) to a load of between 0,25 and 0,50 N.m (2.21 and 4.43 lbf.in).

(c) Install the cap (3-160A) or (3-160C) on the valve (3-120A) or the cap (3-160B) or (3-160D) on the valve (3-120B) or the pressure indicator valve assembly (3-120C) and turn it. –

Torque the cap (3-160A) or (3-160C) to a load of between 0,3 and 0,5 N.m (2.7 and 4.4 lbf.in) or finger tighten it.

–

Torque the cap (3-160B) or (3-160D) to a load of between 0,5 and 1,0 N.m (4.4 and 8.9 lbf.in).

(d) Install the preformed packing (3-130) on the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) with the tool 89901. (e) Install the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) in the hole near the indication “DEFLATE BEFORE DISMANTLING MAIN LANDING GEAR WHEEL ASSEMBLY”. (f) Torque the valve (3-120A) or (3-120B) or the pressure indicator valve assembly (3-120C) to a load of between 20 and 23 N.m (14.8 and 17.0 lbf.ft).

SUBTASK 32-47-46-410-007-A01 (6) Installation of the bearing cone (3-080) and the bearing seal (3-090) (Ref. Fig. 7001) (a) Lubricate the parts as shown in the figure (Ref. Fig. 7001). (b) Install the bearing cone (3-080) in the outer half-wheel assembly (3-010). (c) Install the bearing seal (3-090) in the outer half-wheel assembly (3-010). (d) Install the retaining bush (3-100) in its position. (e) Install the retaining ring (3-110) to keep the retaining bush (3-100) in its position.

32-47-46

Page 7007 Jul 18/13


Protective treatment and lubrication FIGURE 7001/GRAPHIC32-47-46-991-028-A01

32-47-46

Page 7008 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 SUBTASK 32-47-46-800-002-A01 (7) Balancing of the inner and outer half-wheels (2-030) and (3-020) (Ref. Fig. 7002) NOTE:

Balance only overhauled or repaired half-wheels.

(a) Install the tool F26618000 into the inner and outer half-wheels (2-030) and (3-020). (b) Install the washer of the tool F26618000 in position. (c) Install the nut of the tool F26618000 in position and tighten it. (d) Hold the half-wheel on knife-edges through the ends of the tool F26618000 until the half-wheel can turn with the effect of the static imbalance. (e) When the half-wheel stops to move, add a mark at the bottom dead centre. (f) Put one or more lumps of the modeling clay in the balance weight recess opposite to the heaviest point, until the imbalance is removed. NOTE:

The mass of the lump(s) of modeling clay gives an indication of the mass of the balance weights to be installed (Ref. SUBTASK 32-47-46-410-008-A01).

SUBTASK 32-47-46-410-008-A01 (8) Installation of the balance weights (2-090) and (3-040) (Ref. Fig. 7002) CAUTION:

NOTE:

FOR THE INNER HALF-WHEEL (2-030), MAKE SURE THAT THE AXIS OF THE BALANCE WEIGHTS (2-090) IS LOCATED IN THE AREAS SHOWN IN THE FIGURE.

Use the balance weights (2-090) or (3-040) with the mass almost equal to the mass of the lumps of modeling clay.

(a) Drill the attachment hole for the balance weights (2-090) or (3-040). Refer to the instructions given in the figure. (b) Apply a layer of chemical oxidizer in the hole. Refer to section 14 of the SPM 32-09-01. (c) Install the balance weights in their position. (d) Install the screw (2-100) or (3-050) assembled with the washers (2-110) or (3-060). (e) Install the nuts (2-120) or (3-070). (f) Torque the nuts (2-120) or (3-070) to a load of between 4,5 and 6,0 N.m (39.8 and 53.1 lbf.in). (g) Stamp the mass (in grams) of the balance weights (2-090) or (3-040) in the area shown in detail A with a 1,5 mm (0.0590 in) type “MINISTRESS” stamp. (h) Apply chemical oxidizer to locally repair the protection. Refer to section 14 of the SPM 32-09-01. (i) Apply the full paint scheme. Refer to section 36C of the SPM 32-09-01.

32-47-46

Page 7009 Jul 18/13


SUBTASK 32-47-46-410-009-A01 (9) Installation of the heat shield assemblies (2-130) (Ref. Fig. 7003) NOTE:

The aluminium adhesive tape must be replaced by the sealing compound (Ref. Fig. 7003).

(a) Apply the sealing compound on the heat shield assemblies (2-130) as shown in the fi gure. (b) Make sure that sealing compound is dry before you install the heat shield assemblies (2-130) in their positions on the inner half-wheel (2-030). (c) Apply the layer of anti-galvanic corrosion compound at the location of the attachment hole of the wheel with the heat shield assemblies (2-130) as shown in the fi gure. (d) Install the heat shield assemblies (2-130) between the drive blocks (2-060). (e) Safety the heat shield assemblies (2-130) with the screws (2-160), the washers (2-150) and the nuts (2-170). (f) Torque the nuts (2-170) to a load of between 4,5 and 6,0 N.m (39.8 and 53.1 lbf.in).

32-47-46

Page 7010 Jul 18/13


Balancing of the Inner and Outer Half-wheels (2-030) and (3-020) FIGURE 7002/GRAPHIC32-47-46-991-029-A01

32-47-46

Page 7011 Jul 18/13


Application of sealing compound to the Heat Shield Assemblies (2-130) FIGURE 7003/GRAPHIC32-47-46-991-030-A01

32-47-46

Page 7012 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 SUBTASK 32-47-46-200-016-A01 (10) Check of imbalance (a) The half-wheel is balanced if the imbalance is less than 0,035 N.m (0.310 lbf.in). You can ignore the imbalance for the assembly of the main landing gear wheel assembly. NOTE:

During the assembly of the half-wheels, do not read the remaining imbalance of each half-wheel.

SUBTASK 32-47-46-440-001-A01 (11) Assembly of the main landing gear wheel assembly with a tire (Ref. (Ref. (Ref. (Ref.

Fig. 7001) Fig. 7004) Fig. 7005) Fig. 7006)

CAUTION:

NOTE:

CLEAN THE TIRE BEADS AREA AND DRY THEM. MAKE SURE THAT THERE ARE NO SIGNS OF GREASE OR WATER ON THE BEAD SEAT AREA DURING THE INSTALLATION OF THE TIRE.

The assembly procedure of the main landing gear wheel assembly with its tire is given for information only.

CAUTION:

MAKE SURE THAT THERE IS ENOUGH LUBRICANT COMPOUND ON THE THREADED PARTS.

(a) Lubricate the parts as shown in the figure (Ref. Fig. 7001). (b) Install the preformed packing (1-030) on the inner half-wheel assembly (2-010) with the tool 89901. (c) Align the vent holes of two half-wheels. C AUTION:

WHEN YOU INSTALL THE WASHERS (1-080), MAKE SURE THAT YOU INSTALL THE INTERNAL CHAMFER ON THE BOLT HEAD SIDE (REF. FIG. 7004).

(d) Install the bolts (1-070) assembled with the washers (1-080) into the inner half-wheel assembly (2-010). CAUTION:

DO NOT APPLY GREASE TO THE TIRE BEAD.

(e) Install the tire to the outer half-wheel assembly (3-010). Make sure that the tire bead area is clean and ther e is no grease. NOTE:

Ignore the imbalance when you install the tire.

(f) Install the dust guard (1-050) with the preformed packings (1-040) to the outer half-wheel assembly (3-010). NOTE:

The 159 mm (6.26 in) diameter of the dust guard (1-050) must be on the side of the outer half-wheel assembly (3-010).

32-47-46

Page 7013 Jul 18/13


(g) Install the inner half-wheel assembly (2-010) in position on the assembly of the outer half-wheel assembly (3-010) and the tire. (h) Make sure that the preformed packing (1-030) and the half-wheels are correctly aligned. NOTE:

Since the remaining imbalance is ignored, the relative positions of the two half-wheels are not important.

(i) Compress the tire until one half-wheel touches the other half-wheel. CAUTION:

WHEN YOU INSTALL THE WASHERS (1-080), MAKE SURE THAT YOU INSTALL THE INTERNAL CHAMFER IN THE BOLT HEAD SIDE (REF. FIG. 7004).

(j) Install a washer (1-080) on each bolt (1-070). (k) Tighten the nuts (1-090) until one half-wheel touches the other half-wheel. CAUTION:

DO NOT TORQUE THE NUTS (1-090) TO THE LOAD MORE THAN THE SPECIFIED VALUE. IT CAN CAUSE THE FRACTURE OF THE HALF-WHEEL ATTACHMENT BOLTS (1-070).

CAUTION:

THE AVERAGE LUBRICATING VALUE OF THE ANTI-SEIZE COMPOUND MIL-PRF-83483 IS MORE THAN THAT OF THE ANTI-SEIZE COMPOUND SAE-AMS2518. THEREFORE, TIGHTEN THE NUTS WITH A TORQUE SPECIFIC TO EACH TYPE OF ANTI-SEIZE COMPOUND.

(l) Tightening of the bolts (1-070) NOTE:

Make sure that the torque wrench used has an accuracy of + 4 percent (Standard EN 26789 (ISO 6789)).

NOTE:

Two methods of tightening the nuts (1-090) can be used: –

Torque tightening method: The torque is applied to each nut (1-090). The preload of the bolts (1-070) changes with the coef ficients of friction of the mating parts (because of used anti-seize compounds and surface fi nishes) although a different torque value is speci fied for each type of anti-seize compound used.

–

Angle tightening method: The torque value applied is more than the self-locking torque of the nuts (1-090) to set the bolts (1-070) in their position. Each nut (1-090) is tightened to the given angle. The preload of the bolts (1-070) does not change with the type of anti-seize compound used.

The effect of coef ficients of friction of the mating parts is less on the angle tightening method than on the torque tightening method. NOTE:

1

Those tightening methods can cause the torque value engraved on the outer half-wheel (3-020) to become obsolete. Therefore, it is recommended to erase the torque value recorded on that half-wheel and to repair the protection. Refer to the REPAIR 8 section.

Torque tightening method (Ref. Fig. 7005) a

Torque the nuts (1-090) in a criss-cross sequence (1, 2, 3, etc.) to an initial load of:

32-47-46

Page 7014 Jul 18/13


b

c

2

–

110 N.m (81.1 lbf.ft) with anti-seize compound SAE-AMS2518 as shown in the figure.

–

90 N.m (66.4 lbf.ft) with anti-seize compound MIL-PRF-83483 as shown in the figure.

Torque the nuts (1-090) in a criss-cross sequence (1, 2, 3, etc.) to a fi nal load of: –

220 N.m (162.3 lbf.ft) with anti-seize compound SAE-AMS2518 as shown in the figure.

–

180 N.m (132.8 lbf.ft) with anti-seize compound MIL-PRF-83483 as shown in the figure.

To correct the possible replacement of one or more bolts (1-070) in the torque procedure or on not suf ficient torque, make sure that the fi nal torque is applied to each nut (1-090) in the clockwise direction (1, 15, 5, 3, etc.).

Angle tightening method (Ref. Fig. 7006) a

b

Torque the bolts (1-070) and the nuts (1-090) in a criss-cross sequence (1, 2, 3, etc.) as shown in the fi gure with a load of 40 N.m (29.5 lbf.ft) to the nuts (1-090). NOTE:

This torque is more than the self-locking torque of the nuts (1-090).

NOTE:

Make sure that the nut (1-090) touches the wheel, when you apply a torque of 40 N.m (29.5 lbf.ft). If not, remove the bolt (1-070) and the nut (1-090) and do the inspection (refer to the CHECK section).

Set the torque wrench to the maximum torque of 286 N.m (210.9 lbf.ft) with the anti-seize compound SAE-AMS2518 or 234 N.m (172.6 lbf.ft) with the anti-seize compound MIL-PRF-83483.

CAUTION:

READ ALL THE CLEARANCES OF THE TOOL TO GET CORRECT MEASURE OF ANGLE.

c

Set the angle measuring tool to tighten the nut (1-090).

d

Align the static index of the angle measuring tool with the zero on the torque angle gauge.

e

Hold each bolt (1-070) in a static position and tighten the nuts (1-090) in a criss-cross sequence (1, 2, 3, etc.) to an angle of between 120° and 124° as shown in the figure (Ref. Fig. 7005 and , Ref. Fig. 7006). NOTE:

f

Make sure that you do not get the maximum load of 286 N.m (210.9 lbf.ft) with anti-seize compound SAE-AMS2518 or 234 N.m (172.6 lbf.ft) with the anti-seize compound MIL-PRF-83483 before the nut is turned to correct angle. If otherwise, remove the nut (1-090) and the bolt (1-070) and examine them to determine the cause of the damage on the bolt (1-070) or the torque of the nut (1-090) out of tolerance (refer to the CHECK section).

Set the torque wrench to the minimum torque of 154 N.m (113.6 lbf.ft) with the anti-seize compound SAE-AMS2518 or 126 N.m (92.9 lbf.ft) with the anti-seize compound MIL-PRF-83483.

32-47-46

Page 7015 Jul 18/13


g

Do a check of the final load of each bolt (1-070) in a clockwise direction (1, 15, 5, 3, etc.) (Ref. Fig. 7005). NOTE:

Make sure that the nut (1-090) does not turn when you apply the minimum torque. If not, remove the nut (1-090) and the bolt (1-070) and do the inspection (refer to the CHECK section).

(m) Installation of the tire on the bead seats: WARNING : INFLATE THE TIRE IN A N INFLATION CAGE. OVERINFLATION CAN CAUSE A N EXPLOSION.

WARNING : USE A REGULATED PRESSURE SOURCE TO INFLATES THE TIRE. AN UNREGULATED PRESSURE SOURCE CAN CAUSE INJURIES TO THE PERSONNEL AND DAMAGE TO THE MAIN LANDING GEAR WHEEL ASSEMBLY AND THE TIRE. W ARNING : INFLATE THE TIRE WITH DRY NITROGEN FOR STORAGE AND ON-AIRCRAFT USE. IF YOU INFLATE A TIRE WITH A IR, A CHEMICAL REACTION BETWEEN OXYGEN AND VOLATILE GASES FROM THE TIRE IS POSSIBLE. THIS REACTION CAN CAUSE A TIRE EXPLOSION IF THE TEMPERATURE OF THE MAIN LANDING GEAR WHEEL ASSEMBLY INCREASES TO MORE THAN THE LIMIT.

CAUTION:

REFER ONLY TO THE AMM FOR THE OPERATION PRESSURE. DIFFERENT OPERATION PRESSURES ARE NECESSARY FOR DIFFERENT TIRES, AIRCRAFT LOADS AND OPERATION CONDITIONS. AN INCORRECT OPERATION PRESSURE CAN CAUSE DAMAGE TO THE MAIN LANDING GEAR WHEEL ASSEMBLY AND THE TIRE.

1

Put the main landing gear wheel assembly with its tire in the inflation cage.

2

Rapidly inflate the tire with dry nitrogen to the speci fied operational pressure as written in the the AMM.

3

Make sure that you install the tire beads correctly against the flanges of the main landing gear wheel assembly.

4

Fully deflate the tire.

5

Remove the main landing gear wheel assembly with its tire from the inflation cage.

(n) Do an inflation test (Ref. SUBTASK 32-47-46-790-003-A01).

32-47-46

Page 7016 Jul 18/13


Position of the Washers (1-080) FIGURE 7004/GRAPHIC32-47-46-991-031-A01

32-47-46

Page 7017 Jul 18/13


Tightening of the Bolts (1-070) in criss-cross sequence FIGURE 7005/GRAPHIC32-47-46-991-032-A01

32-47-46

Page 7018 Jul 18/13


Angle tightening method FIGURE 7006/GRAPHIC32-47-46-991-033-A01

32-47-46

Page 7019 Jul 18/13



32-47-46

Page 7020 Jul 18/13


FITS AND CLEARANCES

TASK 32-47-46-820-801-A01 1. Fits and clearances A. General (1) For all the parts of a selective assembly or parts to which time can cause damage, the table below gives: (a) The manufacturing tolerances for the parts which are new. (b) The maximum wear and the limits to send the component back to service, for the parts which are not new. (2) It is highly recommended to give the parts their initial condition (as new) during the major overhaul. To do this, repair the parts as written in the REPAIR section or replace them as necessary. (3) Worn dimensions and fi ts may be changed if fi eld experience agrees with it. B. Layout (1) First column: Gives the location in the fi gure(s) of the clearance, fi t, or dimension that you must measure. (2) Second column: Gives the fi gure and item numbers shown in the Illustrated Parts List (IPL). ID: Inside Diameter. OD: Outside Diameter. (3) Third and fourth columns: Give the manufacturing dimensions with tolerances. (4) Fifth and sixth columns: Give the clearance (letter J) or interference fi t (letter S), which is the result of the manufacturing tolerances. (5) Seventh and eighth columns: Give the permitted dimension limits to send the component back to service as it is. (6) Ninth column: Gives the permitted wear limit to send the component back to service as it is. C. Fits and clearances table (Ref. Fig. 8001)

32-47-46

Page 8001 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 MFR LIMITS FIG REF

1

2

3

4

5

6

7

IPL FIG AND ITEM NO

ID

DIMENSIONS millimeters (inches)

MIN

MAX

127,000 (5.0000)

127,025 (5.0010)

ID (2-060) OD (2-020) ID (3-020)

Ø 474,000 (18.6614)

Ø 474,155 (18.6675)

OD (2-020)

Ø 473,869 (18.6562)

Ø 473,932 (18.6587)

ID (2-020)

Ø 16,300 (0.6417)

Ø 16,410 (0.6461)

OD (1-070)

Ø 15,824 (0.6230)

Ø 15,849 (0.6240)

ID (2-030) or (2-031) OD (2-080) or (2-031) ID (3-020) or (3-021) OD (3-030) or (3-021) ID (3-020)

Ø 16,000 (0.6299)

Ø 16,110 (0.6343)

OD (1-070)

Ø 15,824 (0.6230)

Ø 15,849 (0.6240)

IN-SERVICE WEAR LIMITS

ASSEMB LY CLEARANCE millimeters (inches) MIN

MAX

DIMENSIONS LIMITS millimeters (inches) MIN

MAX

PERMITTED CLEARANCE millimeters (inches) MAX

127,025 (5.0010) S 0,048 (0.0019)

J 0,006 (0.0002)

J 0,068 (0.0027)

J 0,286 (0.0113)

J 0,451 (0.0178)

J 0,586 (0.0231)

S 0,367 (0.0144)

S 0,447 (0.0176)

Refer to the REPAIR 2 section

S 0,339 (0.0133)

S 0,425 (0.0167)


J 0,151 (0.0059)

J 0,286 (0.0113)


J 0,006 (0.0002)

J 0,286 (0.0113) 16,410 (0.6461)

16,110 (0.6343)

32-47-46

J 0,586 (0.0231)

J 0,286 (0.0113)

Page 8002 Jul 18/13


Location of fits FIGURE 8001/GRAPHIC32-47-46-991-034-A01

32-47-46

Page 8003 Jul 18/13


TASK 32-47-46-820-802-A01 2. Torque values A. General (1) This section gives the values for the torque values as applicable. B. Torque values table CAUTION:

APPLY THE PRODUCT REQUIRED AND THE TORQUE VALUE AS WRITTEN IN THE ASSEMBLY SECTION. IF NOT, THIS CAN CAUSE DAMAGE TO THE PARTS.

IPL FIG-ITEM NO.

NAME

TORQUE VAL UE

PRODUCT REQUIRED

(1-090)

Nut (Torque tightened)

Initial torque: 90 N.m (66.4 lbf.ft) Final torque: 180 N.m (132.8 lbf.ft)

Anti-seize compound as per MIL-PRF83483

(1-090)

Nut (Torque tightened)

Initial torque: 110 N.m (81.1 lbf.ft) Final torque: 220 N.m (162.3 lbf.ft)

Anti-seize compound as per SAE-AMS2518

(1-090)

Nut (Angle tightened)

Refer to the ASSEMBLY section

Refer to the ASSEMBLY section

(2-032)

Seat

Between 10 and 15 N.m (7.4 and 11.1 lbf.ft)

Silicone grease as per SAE-AMS-G-4343 or SAE-AS8660

(2-070)

Screw

Between 6,5 and 8,0 N.m (57.5 and 70.8 lbf.in)


(2-120)

Nut


Not applicable

(2-170)

Nut


Not applicable

(2-260)

Fuse plug

Between 9 and 10 N.m (80 and 89 lbf.in)

Not applicable

(2-280)

Fuse plug


Not applicable

(3-070)

Nut


Not applicable

(3-022)

Union


Silicone grease as per SAE-AMS-G-4343 or SAE-AS8660

32-47-46

Page 8004 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 IPL FIG-ITEM NO.

NAME

(3-120A) or (3-120B) or (3-120C)

Valve or pressure indicator valve assembly



(3-150A) or (3-150C)

Standard valve core or large valve core


Not applicable

(3-150B) or (3-150D)

Standard valve core


Not applicable

(3-160A) or (3-160C)

Cap

Between 0,3 and 0,5 N.m (2.7 and 4.4 lbf.in) or Finger tighten

Not applicable

(3-160B) or (3-160D)

Cap


Not applicable

(3-180)

Plug


Not applicable

NOTE:

TORQUE VALUE

PRODUCT REQUIRED

If the torque value is: –

More than or equal to 10 N.m (7.4 lbf.ft), the tolerance is 5 percent.

–

Less than 10 N.m (7.4 lbf.ft), the tolerance is 10 percent.

32-47-46

Page 8005 Jul 18/13



32-47-46

Page 8006 Jul 18/13


SPECIAL TOOLS, FIXTURES, EQUIPMENT AND CONSUMABLES

TASK 32-47-46-940-801-A01 1. Special tools, fixtures and equipment A. General NOTE:

Standard tools and equipment, usually available at overhaul, can be used to service the main landing gear wheel assembly, but not for the special tools and fi xtures listed below. You can use alternatives for the listed items.

(1) Special tools and fixtures are available from MESSIER-BUGATTI-DOWTY (CAGE FAJX6). Inquire at the following address for the price and delivery time: MESSIER-BUGATTI-DOWTY MRO Unit - Turnkey Services Inovel Parc Nord Immeuble Etendard - Energy III 36 avenue de l’Europe 78140 Velizy-Villacoublay France Telephone: 33 (0) 1 30 67 45 34 Fax: 33 (0) 1 30 67 45 95 B. Special tools and equipment table (1) Use code: (a) Optional (1). (b) Necessary (2). PART NUMBER

DESIGNATION

USE CODE

PAGE BLOCK WHERE USED

F26616000

Test tool for the fuse plugs (2-260) and (2-280)

(2)

1000

H47015

Test plug for the pressure indicator valve assembly (3-120C)

(2)

1000

J47200

Holding block to check the radial distortion of the half-wheels

(1)

5000

D21852-1000


(2)

6000

M21862


(2)

6000

Q47749

Guide for the installation of the drive blocks (2-060)

(1)

6000

F26618000

Half-wheel balancing shaft (supersedes D46242 and J47201)

(1)

7000

32-47-46

Page 9001 Jul 18/13

COMPONENT MAINTENANCE MANUAL C20195162 PART NUMBER

DESIGNATION

USE CODE


D46242

Half-wheel balancing shaft (superseded by F26618000)

(1)

7000

J47201

Adaptor for shaft D46242 for the complete outer half-wheel (3-001) (superseded by F26618000)

(2)

7000

89901

Spatula

(1)

BTA720023MOD1 (replaces U21899)

Protector

(2)

1000, 3000, 6000 and 7000

32-47-46

15000

Page 9002 Jul 18/13


TASK 32-47-46-940-802-A01 2. Consumables

REFERENCE

DESIGNATION A ND SPECIFICATION

SUPPLIERS CODE OR NAME AND ADDRESS



Silicone grease

Approved vendor

LOCTITE CHISEL 790

Cleaning product

HENKEL TECHNOLOGIES France Division Loctite (VF7121) 8, Boulevard Faraday 77700 Serris France

ISOPROPYL ALCOHOL

Degreasing solvent


4000 and 6000

WD-40 or Corrosion preventive compound as per MIL-PRF-81309

Corrosion preventive oil

WD-40 COMPANY 1061 Cudahy Place San Diego CAlifornia 92110-3998 U.S.A.

4000 and 6000

Pumice powder

Abrasive material

ABRASIF MERCIER 40, Rue Jean Jacques Rousseau 94200 Ivry/seine France

6000



DOW CORNING EUROPE Zoning Industriel Zone C 7180 Seneffe Belgium



Approved vendor

Carbon dioxide ice

Carbon dioxide ice



Adhesive compound

HENKEL TECHNOLOGIES FRANCE DIVISION LOCTITE (VF7121) 8, Boulevard Faraday 77700 Serris France

RTV 106

Sealing compound

Approved vendor

Grease as per MIL-PRF-81322 (AIR 4222) or MIL-G-3545 (AIR 4205)

Bearing grease


32-47-46

1000, 6000 and 7000 4000

6000 and 7000

6000

6000 6000 and 7000

7000 4000 and 7000

Page 9003 Jul 18/13


DESIGNATION A ND SPECIFICATION

SUPPLIERS CODE OR NAME AND ADDRESS


MOBIL AVIATION Grease SHC100

Bearing grease

MOBIL PETROLEUM GMBH Kapstadtring 2 22297 Hamburg Deutschland

V-VP-236 (AIR 3565)

Vaseline

Approved vendor

1000 and 7000

Grease as per SAE-AMS2518

Anti-seize compound

Approved vendor

5000 and 7000

Grease as per MIL-PRF-83483

Anti-seize compound

Approved vendor

7000

32-47-46

7000

Page 9004 Jul 18/13


STORAGE AND TRANSPORTATION

TASK 32-47-46-500-801-A01 1. Storage Instructions A. Reason for the job Self-explanatory. B. Job set-up information (1) Tools, fixtures and equipment (a) The table below gives the tools, fixtures and equipment necessary for storage of the component. NOTE:


NOTE:


REFERENCE

BTA720023MOD1

QTY

1

NAME

Protector

(2) Consumables Not applicable. (3) Referenced information REFERENCE


DESIGNATION

Storage

C. Job set-up Not applicable. D. Procedure SUBTASK 32-47-46-550-001-A01 (1) Storage (a) Install the tool BTA720023MOD1 on the main landing gear wheel assembly. (b) Refer to section 72 of the SPM 32-09-01.

32-47-46

Page 15001 Jul 18/13



32-47-46

Page 15002 Jul 18/13


ILLUSTRATED PARTS LIST

TASK 32-47-46-871-802-A01 1. Introduction to the Illustrated Parts List A. Policy (1) This section is the list of all the parts of the component which are given in this manual, and makes it possible to identify these parts. It contains, as indexes, Illustrated Parts List, etc., all the data necessary to get of all the parts. B. How to use the Illustrated Parts List (1) Each part is identified as follows: (a) By the manufacturer’s Part Number. The alphanumerical index of the manufacturer’s Part Numbers gives, for each component, on the same line as the Part Number: 1

The figure on which the component is shown.

2

The item number on this figure.

3

The total quantity necessary for each CSN.

4

The equivalent Part Number, if applicable, given by the airlines.

(b) By the function of the part 1

The Illustrated Parts List makes it possible to fi nd the location of each part in the figures and in the different groups of parts for which there was a breakdown of the component.

(c) By the illustration of the part 1

To identify a part by its illustration, use the figure on which this part is shown. This figure gives the item number which will make it possible to refer to the Parts List and get all the data about this part.

2

The Item Numbers have a numerical base. For each fi gure, the Item Numbers begin at “1” and are given in numerical sequence with regular increments of tens.

3

They do not change during the total life of the item. A variant letter is added to the Item Number as a result of all the modi fications included.

4

Usually, variant letters are not shown in the fi gures. NOTE:

When the Illustrated Parts List includes handed assemblies, the Item Number with numerical base 2 refers to a RH assembly and its variants. The Item Number with numerical base 1 refers to the LH assembly and its variants. The numerical sequence 1, 2, 3, .... 9 is used for the identi fication of some assemblies included in a common Illustrated Parts List. Because there is no direct relation between these assemblies, these are not variants; but they include a high percentage of common parts. For “SELECT FROM” and “OVERSIZE, UNDERSIZE” parts, the “ten” increments are changed to “ five” increments.

32-47-46

Page 10001


5

The EFFECTIVITY CODE column shows the Item Number of the next higher assembly or sub-assembly. For items used in the full range of the primar y component, the EFFECTIVITY CODE column is kept blank. This column is also kept blank for assemblies located on a line which is not indented (line 1).

6

The “UNITS PER ASSY” column shows the quantity per assembly which is necessary for the next higher assembly. In the indexes, the quantity shown ref ers to the quantity broken down for a given CSN.

C. Revision (1) When a line is new, modified or deleted, there is a letter “R” or a vertical black line at the end of the line (the date of issue is changed). (2) After each modification of a given item, the numerical Item Number itself does not change. But the variant letter changes from “A” to “B”, then to “C” thru “Z” (do not use letters “I” and “O”). (3) When it is necessary to add a new part, its name must be on the line which agrees with the correct position of this part in the breakdown of the assembly. Select its Item Number from open sequences. (4) Addition of new figures (figure variants): (a) When the layout of the basic figure does not make it possible to show new parts or the new shape of modi fied parts, a new figure (called “figure variant”) is then added. (b) This fi gure variant will have the same number as that of the basic fi gure, followed by a letter given in alphabetical sequence (do not use “I” and “O”). (5) Deletion of item (a) Before deleting of items from the Illustrated Parts List: 1

Make sure, fi rst, that the modification is applied to all the applicable assemblies.

2

Make sure, for items kept in store, that they are changed or removed from store.

(b) If these two conditions are satisfied, identify the deleted items, in the nomenclature column, by the word: “DELETED”. (c) The Part Number of the deleted part is then kept in the indexes with the word “DELETED”.

32-47-46

Page 10002


D. General (1) There is a breakdown of assemblies and each part is shown in the assembly sequence. (2) The vertical lines of the indention are shown as dotted lines as follows: 1 2 3 4 5 6 7 (Indention number)

Assembly . Part of the assembly . Sub-assembly . . Part of the sub-assembly . . . Detail part (3) This sequence is, in fact, changed by the nomenclature of the attaching parts and storage parts. The attaching parts are shown immediately below the assembly or sub-assembly they attach, and above the detail parts. (4) The storage parts are shown immediately below the parts on which they are installed for protection. (5) The attaching parts and storage parts are: (a) Indented in line with the assembly, sub-assembly or part to which they are related. (b) Identified by the words “ATTACHING PARTS” or “STORAGE PARTS” shown on the line above. (c) Followed by three stars shown on the line below.

32-47-46

Page 10003


E. Words and Abbreviations used (1) The most frequently used words and abbreviations are: Ab br evi ati on

Term

ALT

Alternate

AR

As Required

CONT’D

Continued

DET

Detail

FIO

For information only

LH and RH

Left Hand and Right Hand

NHA

Next Higher Assembly

NP

Non Procurable

OPT

Optional

ORDER OVERLGTH MPN

Full P/N of the manufacturer

OVERSIZE - UNDERSIZE

“Oversize/Undersize” parts

RF

For Reference

RPLD

Replaced by

RPLS

Replaces

SB

Service Bulletin

SEL FROM

“Select from” parts

SL

Service Letter

SUPSD BY

Superseded by

SUPSDS

Supersedes

32-47-46

Page 10004


VENDOR’S CODE LIST VENDOR CODE

NAME AND ADDRESS

V91816

CIRCLE SEAL CONTROLS INC A WATTS INDUSTRIES INC CO 2301 WARDLOW CIR PO BOX 3300 CORONA CA 91718 USA

V92215

FAIRCHILD INDUSTRIES INC FAIRCHILD AEROSPACE FASTENER DIV DESIGN AND ENGINEERING SOUTH BAY OPNS 3000 W LOMITA BLVD TORRANCE CA 90505-5102 USA

VF0188

BLANC AERO INDUSTRIES TOUR GAMMA A 193 RUE DE BERCY 75582 PARIS CEDEX 2 FRANCE

VF0286

TYCO ELECTRONICS FRANCE SAS 29 CHAUSSEE JULES CESAR 95300 CERGY PONTOISE FRANCE

VF0704

TIMKEN-FRANCE SA ZI DE COURTABOEUF 5 AVENUE DE L AMAZONIE ′ 91943 LES ULIS FRANCE

VF0826

SCHRADER SA 48 RUE DE SALINS 25300 PONTARLIER FRANCE

VF1699

BOLLHOFF-OTALU ROUTE D APREMONT ZI DE L ALBANNE ′ ′ 73490 LA RAVOIRE FRANCE

32-47-46

Page 10005 Jul 18/13


VF6137

MESSIER-BUGATTI-DOWTY INOVEL PARC SUD BP 40 78140 VELIZY-VILLACOUBLAY FRANCE

32-47-46

Page 10006 Jul 18/13


REFERENCE ALPHANUMERICAL INDEX

Part Number

Airline Part Number

Figure Number

Item Number

Total Required

A32266

01

070A

18

A32782EB

02

031A

AR

A32889

02

050A

9

A32936EB

03

021A

AR

A32983

02

032A

AR

A33539

03

180A

2

A33697

02

230A

1

A33698

02

240A

1

A33827

02 03

090A 040A

AR AR

A33827-5

03

040B

AR

A33832

03

090A

1

A33833

03

100A

1

A33834

03

110A

1

A33835

02

210A

1

A33839

02

200A

1

A35304

01

080A

36

A35362

02

140B

36

A35395

02

020A

1

A35395-1

02

030A

1

A35396

03

020A

1

A35397

02

060A

9

A35397R1

02

061A

AR

32-47-46

NI/ALPH Page 10007


Part Number

Airline Part Number

Figure Number

Item Number

Total Required

A35397R2

02

062A

AR

A35397R3

02

063A

AR

A35439-001

02

034A

AR

A35994

02

060B

9

A35994R1

02

061B

AR

A35994R2

02

062B

AR

A35994R3

02

063B

AR

A36007

01

050B

1

AS3582-010

02

250B

3

AS3582-254

01

040B

2

BA1172A10

01

090B

18

C20195162

01

001A

RF

C20205160

02

010A

1

C20206160

03

010A

1

D52615-85

03

022A

AR

D92505-3

01

100A

1

GA30366

02

190A

1

GA30367

01

050A

1

GA30378

02

260A

3

GA30448

02

280A

3

GA30630

02

260B

3

GA31223

02

130A

9

GA31249

01 02

010A 001A

1 RF

32-47-46

NI/ALPH Page 10008


Part Number

Airline Part Number

Figure Number

Item Number

Total Required

GA31249-1

01 02

010B 001B

1 RF

GA31251

01 03

060A 001A

1 RF

L225810

03

030A

1

L225810-2-629

03

030C

1

L225810-20629

03

030D

1

L225810-2X629

03

030B

1

L225849

03

080A

1

L225849-2-629

03

080C

1

L225849-20629

03

080D

1

L225849-2X629

03

080B

1

MS28778-5

02

033A

AR

MS9068-010

02

250A

3

MS9068-254

01

040A

2

NAS1102-3-20

02 03

100A 050A

AR AR

NAS1102-3-26

03

050B

AR

NAS1102-4-6

02

070A

9

NAS1102E4-6

02

070B

9

NAS1149F0332P

02

110A 150A 060A

AR 9 AR

03

120A 170A 070A

AR 9 AR

02

160A

9

03 NAS1291C3M

NAS1351C3-14

02

32-47-46

NI/ALPH Page 10009


Part Number

Airline Part Number

Figure Number

Item Number

Total Required

NAS1601-464 *** DELETED

01

030B

-


02

270A

-


03

023A

-

NAS1611-464

01

030A

1

NAS1611-464A

01

030C

1

NAS1612-3

02

270B

3

NAS1612-3A

02

270C

3

NAS1612-5A

03

130B 170B

1 2

NAS1612-8

03

023B

AR

NAS1612-8A

03

023C

AR

TR761-3

03

120B

1

TRC2

03

150A

1

TRC4

03

150B

1

TRJ780-02 *** DELETED

03

140A

-

TRJ780-03

03

120A

1

TRRG6

03

130A 170A

1 2

TRVC5

03

160B

1

TRVC9

03

160A

1

U21899

01

020A

1

VN465A108

01

090A

18

01300747004

02

040A

9

10-44

03

120C

1

21217CA2411

02

220A

3

32-47-46

NI/ALPH Page 10010


Part Number

Airline Part Number

Figure Number

Item Number

Total Required

28718

03

160D

1

29112

03

150D

1

29602

03

160C

1

32283

03

150C

1

41300747004

02

040B

9

48220

02

080A

1

48220-2-629

02

080C

1

48220-20629

02

080D

1

48220-2X629

02

080B

1

48290

02

180A

1

48290-2-629

02

180C

1

48290-20629

02

180D

1

48290-2X629

02

180B

1

32-47-46

NI/ALPH Page 10011



32-47-46

NI/ALPH Page 10012 Jul 18/13


DETAILED PARTS LIST

32-47-46

Page 10013


Main Landing Gear Wheel Assembly FIGURE 01/GRAPHIC32-47-46-950-901-A01

32-47-46

Page 10014 Jul 18/13


FIG. ITEM

PART NUMBER

AIRLINE STOCK NUMBER

NOMENCLATURE

EFFECT UNITS CODE PER ASSY

1234567

01 –001A C20195162

WHEEL ASSEMBLY, MAIN LANDING GEAR P/N AMDT A

–010A GA31249

. HALF-WHEEL, COMPLETE INNER (NP) SEE 324746-02-001A 02 FOR DET

1

. HALF-WHEEL, COMPLETE INNER (NP) SEE 324746-02-001B 02 FOR DET STORAGE PART

1

–020A U21899

. PROTECTOR ***

1

–030A NAS1611-464

. PACKING, PREFORMED

–030B NAS1601-464

. DELETED

010B GA31249-1

030C NAS1611-464A –040A MS9068-254 040B AS3582-254

–050A GA30367

(NP)

RF

1

. PACKING, PREFORMED POST SL F6137-32-865

1

. PACKING, PREFORMED RPLD BY AS3582-254

(NP)

2

. PACKING, PREFORMED POST SL F6137-32-3375 RPLS MS9068-254 RESULT OF NEW IDENTIFICATION

2

. GUARD, DUST

1

(NP)

050B A36007

. GUARD, DUST POST SB C20195-32-3204

1

060A GA31251

. HALF-WHEEL, COMPLETE OUTER (NP) SEE 324746-03-001A 03 FOR DET

1

ATTACHING PARTS 070A A32266

. BOLT

18

080A A35304

. WASHER

36

090A VN465A108

. NUT

(V92215)

18

090B BA1172A10

. NUT

(VF0188)

18

*** –100A D92505-3

. PLATE, INDENTIFICATION AND AMENDMENT POST SB C20195-32-819

1

– ITEM NOT ILLUSTRATED

32-47-46

Page 10015


Complete Inner Half-wheel FIGURE 02/GRAPHIC32-47-46-950-902-A01

32-47-46

Page 10016 Jul 18/13


FIG. ITEM

PART NUMBER


NOMENCLATURE


1234567

02 –001A GA31249

HALF-WHEEL, COMPLETE INNER

RF (NP)

SEE 324746-01-010A 01 FOR NHA –001B GA31249-1

HALF-WHEEL, COMPLETE INNER

RF (NP)

SEE 324746-01-010B 01 FOR NHA –010A C20205160

. HALF-WHEEL ASSEMBLY, INNER P/N AMDT A

1

–020A A35395

. . HALF-WHEEL SUB-ASSEMBLY, INNER

1

030A A35395-1

. . . HALF-WHEEL, INNER

(NP)

1

–031A A32782EB

. . . BUSH REPAIR ONLY

AR

–032A A32983

. . . SEAT REPAIR ONLY

AR

–033A MS28778-5

. . . PACKING, PREFORMED REPAIR ONLY

AR

–034A A35439-001

. . . BUSHING, THREADED REPAIR ONLY

AR

–040A 01300747004

. . . INSERT, THREAD SUPSD BY 41300747004

040B 41300747004

. . . INSERT, THREAD SUPSDS 01300747004

050A A32889

. . PIN, LOCATING

(NP)

9

(VF1699)

9 9

–060A A35397

. . BLOCK, DRIVE

(NP)

9

–060B A35994

. . BLOCK, DRIVE

–061A A35397R1

. . BLOCK, DRIVE WIDTH 18,5 MM (0.7283 IN) UNDERSIZE

AR

–061B A35994R1


AR

–062A A35397R2

. . BLOCK, DRIVE WIDTH 18 MM (0.7086 IN) UNDERSIZE

AR

–062B A35994R2

. . BLOCK, DRIVE WIDTH 18 MM (0.7086 IN) UNDERSIZE

AR

9


32-47-46

Page 10017


FIG. ITEM

PART NUMBER


NOMENCLATURE


1234567

02 –063A A35397R3


AR

–063B A35994R3


AR

–070A NAS1102-4-6

. . SCREW

070B NAS1102E4-6

(NP)

. . SCREW

9 9

–080A 48220

. . CUP, BEARING SUPSD BY 48220-2X629

(NP)

1

–080B 48220-2X629

. . CUP, BEARING SUPSDS 48220 SUPSD BY 48220-2-629

(NP)

1

–080C 48220-2-629

. . CUP, BEARING SUPSDS 48220-2X629

(NP)

1

(VF0704)

1

080D 48220-20629

. . CUP, BEARING POST SL F6137-32-873

090A A33827

. . WEIGHT, BALANCE

AR

ATTACHING PARTS 100A NAS1102-3-20

. . SCREW

AR

110A NAS1149F0332P

. . WASHER

AR

120A NAS1291C3M

. . NUT

AR

*** 130A GA31223

. SHIELD ASSEMBLY, HEAT ALT TO GA31573 MADE BY VF6137

9

. . STUD

4

150A NAS1149F0332P

. WASHER

9

160A NAS1351C3-14

. SCREW

9

170A NAS1291C3M

. NUT

9

–140B A35362

–180A 48290

. CONE, BEARING SUPSD BY 48290-2X629

(NP)

1

–180B 48290-2X629

. CONE, BEARING SUPSDS 48290 SUPSD BY 48290-2-629

(NP)

1

–180C 48290-2-629

. CONE, BEARING SUPSDS 48290-2X629

(NP)

1

(VF0704)

1

180D 48290-20629

. CONE, BEARING POST SL F6137-32-873


32-47-46

Page 10018


FIG. ITEM

PART NUMBER


NOMENCLATURE


1234567

02 –190A GA30366

. STOP AND BEARING SEAL ASSEMBLY

1

200A A33839

. . SEAL, BEARING

1

210A A33835

. . STOP

220A 21217CA2411

. . RIVET

3

230A A33697

. BUSH, RETAINING

1

240A A33698

. RING, RETAINING

1

–250A MS9068-010 250B AS3582-010

(NP)

. PACKING, PREFORMED RPLD BY AS3582-010

(NP)

1

3

. PACKING, PREFORMED POST SL F6137-32-3375 RPLS MS9068-010 RESULT OF NEW IDENTIFICATION

3

–260A GA30378

. PLUG, FUSE

3

260B GA30630

. PLUG, FUSE

3

–270A NAS1602-903

. DELETED

3

–270B NAS1612-3

. PACKING, PREFORMED

3

270C NAS1612-3A

. PACKING, PREFORMED POST SL F6137-32-865

3

280A GA30448

. PLUG, FUSE

3

(NP)


32-47-46

Page 10019


Complete Outer Half-wheel FIGURE 03/GRAPHIC32-47-46-950-903-A01

32-47-46

Page 10020 Jul 18/13


FIG. ITEM

PART NUMBER


NOMENCLATURE


1234567

03 –001A GA31251

HALF-WHEEL, COMPLETE OUTER (NP) SEE 324746-01-060A 01 FOR NHA

–010A C20206160

. HALF-WHEEL ASSEMBLY, OUTER

1

. . HALF-WHEEL, OUTER

1

020A A35396

(NP)

RF

–021A A32936EB

. . BUSH REPAIR ONLY

AR

–022A D52615-85

. . UNION REPAIR ONLY

AR

–023A NAS1602-908

. . DELETED

AR

–023B NAS1612-8

. . PACKING, PREFORMED REPAIR ONLY

AR

–023C NAS1612-8A

. . PACKING, PREFORMED POST SL F6137-32-865 REPAIR ONLY

AR

–030A L225810

. . CUP, BEARING SUPSD BY L225810-2X629

(NP)

1

–030B L225810-2X629

. . CUP, BEARING SUPSDS L225810 SUPSD BY L225810-2-629

(NP)

1

–030C L225810-2-629

. . CUP, BEARING SUPSDS L225810-2X629

(NP)

1

(VF0704)

1

030D L225810-20629

. . CUP, BEARING POST SL F6137-32-873

040A A33827

. . WEIGHT, BALANCE

AR

040B A33827-5

. . WEIGHT, BALANCE POST SB C20575-32-3232

AR

ATTACHING PARTS 050A NAS1102-3-20

. . SCREW

AR

050B NAS1102-3-26

. . SCREW POST SB C20575-32-3232

AR

060A NAS1149F0332P

. . WASHER

AR

070A NAS1291C3M

. . NUT

AR

*** –080A L225849

. CONE, BEARING SUPSD BY L225849-2X629

(NP)

1


32-47-46

Page 10021

Main Wheel CMM 32-47-46 Rev 9 - 18July2013

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