F6137

Inovel Parc Sud

BP 40
78140 VELIZY - VILLACOUBLAY
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: C20545000
C20545100

The technical data in this document (or file) 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 fines and penalties under the Export Administration Act.

The content of this document is the property of and contains information proprietary to
MESSIER-BUGATTI-DOWTY and recipient by accepting this document 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.

Copyright © 2002

Revision No. 5 TP1

Initial Issue: Apr 30/02 32-45-92 Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

TP2
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TRANSMITTAL SHEET

TO: HOLDERS OF COMPONENT MAINTENANCE MANUAL FOR MAIN LANDING GEAR WHEEL
ASSEMBLY ATA 32-45-92
Revision No. 5, dated Nov 08/13 is attached and covers all components held by every operator.
REASON FOR REVISION:

CAUTION: THIS MANUAL SUPERSEDES THE PREVIOUS 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 INTO ACCOUNT
THE TRANSFERRED PAGES WHICH ARE NOT COVERED BY A TECHNICAL
MODIFICATION.

This CMM has been completely reissued to incorporate a new LOGO. Refer to the HIGHLIGHTS
section for the list of the pages which are covered by a technical modification.

FILING INSTRUCTIONS:
Remove and destroy all the pages of the previous issue. Replace them by all the pages of the Revision
No. 5, dated Nov 08/13.

TL
Page 1
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

TL
Page 2
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

HIGHLIGHTS

Revision No.5 - Nov 08/13

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 R Revised to reflect this revision

RECORD OF REVISIONS R Revised to reflect this revision

RECORD OF TEMPORARY R Revised to reflect this revision

REVISIONS

SERVICE BULLETIN LIST R

LIST OF EFFECTIVE PAGES R Revised to reflect this revision

TABLE OF CONTENTS R Revised to reflect this revision

LIST OF ILLUSTRATIONS R Revised to reflect this revision

INTRODUCTION R

TASK 32-45-92-871-801-A01 R Website modified

DESCRIPTION AND OPERATION R

TASK 32-45-92-870-801-A01 R

TESTING AND FAULT ISOLATION R

TASK 32-45-92-700-801-A01 R Consumable reference modified

Consumable deleted
Caution deleted

SUBTASK 32-45-92-800-001-A01 R

SUBTASK 32-45-92-790-001-A01 R

SUBTASK 32-45-92-790-002-A01 R

TASK 32-45-92-810-801-A01 R

SUBTASK 32-45-92-810-001-A01 R

DISASSEMBLY R

TASK 32-45-92-000-801-A01 R

HLTS
Page 1
32-45-92 Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

LOCATIONS DESIGNATION DESCRIPTION OF CHANGE

SUBTASK 32-45-92-000-001-A01 R

SUBTASK 32-45-92-010-001-A01 R

SUBTASK 32-45-92-010-002-A01 R

SUBTASK 32-45-92-010-003-A01 R

SUBTASK 32-45-92-010-004-A01 R

SUBTASK 32-45-92-010-005-A01 R

SUBTASK 32-45-92-010-006-A01 R

SUBTASK 32-45-92-010-007-A01 R

SUBTASK 32-45-92-010-008-A01 R

SUBTASK 32-45-92-010-009-A01 R

CLEANING R

TASK 32-45-92-100-801-A01 R Consumables deleted

Consumable reference modified
Consumable added
Reference table updated

SUBTASK 32-45-92-110-001-A01 R Reference to SPM section added

SUBTASK 32-45-92-110-002-A01 R Text deleted

SUBTASK 32-45-92-110-003-A01 R Reference to SPM section added

SUBTASK 32-45-92-110-004-A01 R Text modified

Consumable deleted

TASK 32-45-92-100-802-A01 R

SUBTASK 32-45-92-110-005-A01 R

SUBTASK 32-45-92-110-006-A01 R Warning deleted

Text deleted

SUBTASK 32-45-92-120-001-A01 R Caution modified

Text deleted

INSPECTION/CHECK R

HLTS
Page 2
32-45-92 Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

LOCATIONS DESIGNATION DESCRIPTION OF CHANGE

TASK 32-45-92-200-801-A01 R Referenced information table updated

SUBTASK 32-45-92-200-001-A01 R Text deleted

SUBTASK 32-45-92-200-002-A01 R Reference to SPM section added

Text deleted

SUBTASK 32-45-92-200-003-A01 R Text modified

GRAPHIC 32-45-92-991-002-A01 R Illustration modified

SUBTASK 32-45-92-200-004-A01 R Text deleted

SUBTASK 32-45-92-200-005-A01 R Reference to SPM section added

Text deleted

SUBTASK 32-45-92-200-006-A01 R

SUBTASK 32-45-92-200-007-A01 R

SUBTASK 32-45-92-200-008-A01 R

SUBTASK 32-45-92-200-009-A01 R

REPAIR R

TASK 32-45-92-300-801-A01 R Consumable reference modified

Referenced information table modified

SUBTASK 32-45-92-320-001-A01 R

SUBTASK 32-45-92-320-002-A01 R

SUBTASK 32-45-92-320-003-A01 R SPM reference modified

Text deleted

SUBTASK 32-45-92-320-004-A01 R

SUBTASK 32-45-92-350-001-A01 R

SUBTASK 32-45-92-300-001-A01 R

REPAIR 1 R

TASK 32-45-92-300-802-A01 R Referenced information table updated

SUBTASK 32-45-92-320-005-A01 R Figure reference added

HLTS
Page 3
32-45-92 Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

LOCATIONS DESIGNATION DESCRIPTION OF CHANGE

SUBTASK 32-45-92-320-006-A01 R Figure reference added

Text deleted
Text added

SUBTASK 32-45-92-320-010-A01 R Subtask added

GRAPHIC 32-45-92-991-006-A01 R Illustration added

GRAPHIC 32-45-92-991-010-A01 R Illustration modified

SUBTASK 32-45-92-320-007-A01 R

REPAIR 2 R

TASK 32-45-92-300-803-A01 R Tools table updated

Referenced information table updated
Figure reference deleted

SUBTASK 32-45-92-010-010-A01 R Caution modified

Text deleted

SUBTASK 32-45-92-320-008-A01 R

SUBTASK 32-45-92-320-009-A01 R Text deleted

Warning added
Caution modified

SUBTASK 32-45-92-410-001-A01 R Text deleted

Caution modified

GRAPHIC 32-45-92-991-008-A01 R Illustration modified

GRAPHIC 32-45-92-991-009-A01 R Illustration modified

REPAIR 3 R

TASK 32-45-92-300-804-A01 R Referenced information table updated

SUBTASK 32-45-92-380-001-A01 R Reference to SPM section 36E added

ASSEMBLY R

TASK 32-45-92-400-801-A01 R Tools table updated

Consumable reference modified
Consumables deleted
Consumable added

HLTS
Page 4
32-45-92 Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

LOCATIONS DESIGNATION DESCRIPTION OF CHANGE

SUBTASK 32-45-92-400-001-A01 R

SUBTASK 32-45-92-640-001-A01 R Reference to SPM section added

SUBTASK 32-45-92-410-002-A01 R

SUBTASK 32-45-92-410-003-A01 R

SUBTASK 32-45-92-410-004-A01 R

SUBTASK 32-45-92-410-005-A01 R

SUBTASK 32-45-92-410-006-A01 R Text modified

SUBTASK 32-45-92-410-007-A01 R Text deleted

SUBTASK 32-45-92-410-008-A01 R Text deleted

SUBTASK 32-45-92-440-001-A01 R Caution deleted

Text added
Text modified

SUBTASK 32-45-92-410-009-A01 R

SUBTASK 32-45-92-400-002-A01 R

GRAPHIC 32-45-92-991-012-A01 R Illustration modified

FITS AND CLEARANCES R

TASK 32-45-92-820-801-A01 R

TASK 32-45-92-820-802-A01 R Text modified

SPECIAL TOOLS, FIXTURES, R

EQUIPMENT AND CONSUMABLES

TASK 32-45-92-940-801-A01 R Address modified

Telephone no. and Fax modified

TASK 32-45-92-940-802-A01 R Consumables deleted

Text modified
Consumable reference modified
Consumable added

STORAGE AND TRANSPORTATION R

HLTS
Page 5
32-45-92 Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

LOCATIONS DESIGNATION DESCRIPTION OF CHANGE

TASK 32-45-92-550-801-A01 R

SUBTASK 32-45-92-550-001-A01 R

ILLUSTRATED PARTS LIST R

TASK 32-45-92-550-801-A01 R

DETAILED PARTS LIST

GRAPHIC 32-45-92-950-901-A01 R Illustration modified

FIGURE 01 R IPL revised to reflect this revision

HLTS
Page 6
32-45-92 Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

RECORD OF REVISIONS

INSERTED INSERTED
REV. ISSUE REV. ISSUE
No. DATE DATE BY No. DATE DATE BY

1 Nov 24/03
2 Jan 19/07
3 Jun 30/08
4 Sep 28/10
5 Nov 08/13

ROR
Page 1
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

ROR
Page 2
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

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 REMOVED
TEMP REV. ISSUE PAGE No.
No. DATE DATE BY DATE BY

32-1 Jun 30/08 1/2

2/2

RTR
Page 1
32-45-92 Nov 08/13
COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

RTR
Page 2
32-45-92 Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

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 modifications given to the component operator.

SB No. REV No. MOD No. INCORP. TITLE

DATE

C20545-32-029 0 8001, Issue 1 Jan 19/07 Replacement of nickel plated keys by the
cobalt chromium tungsten plated keys.

C20545-32-039 0 8003, Issue 1 Jun 30/08 Replacement of the fusible plugs.

SL 1 Sep 28/10 Wheels and Brakes aqueous cleaning

F6137-32-851 products.

SL 0 Sep 28/10 Introduction of new part number writing for

F6137-32-044 the aircraft landing wheel bearings by the
manufacturer Timken.

SBL
Page 1
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

SBL
Page 2
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

LIST OF EFFECTIVE PAGES

SUBJECT PAGE DATE SUBJECT PAGE DATE

TITLE PAGE DESCRIPTION AND OPERATION

1 R Nov 08/13 1 R Nov 08/13

2 Blank 2 R Nov 08/13
3 R Nov 08/13
RECORD OF REVISIONS 4 Blank

1 R Nov 08/13 TESTING AND FAULT ISOLATION

2 Blank
1001 R Nov 08/13
RECORD OF TEMPORARY REVISIONS 1002 R Nov 08/13
1003 R Nov 08/13
1 R Nov 08/13 1004 R Nov 08/13
2 Blank 1005 R Nov 08/13
1006 R Nov 08/13
SERVICE BULLETIN LIST
DISASSEMBLY
1 R Nov 08/13
2 Blank 3001 R Nov 08/13
3002 R Nov 08/13
LIST OF EFFECTIVE PAGES 3003 R Nov 08/13
3004 R Nov 08/13
1 R Nov 08/13
2 R Nov 08/13 CLEANING
3 R Nov 08/13
4 Blank 4001 R Nov 08/13
4002 R Nov 08/13
TABLE OF CONTENTS 4003 R Nov 08/13
4004 R Nov 08/13
1 R Nov 08/13 4005 R Nov 08/13
2 R Nov 08/13 4006 R Nov 08/13
3 R Nov 08/13
4 R Nov 08/13 INSPECTION/CHECK

LIST OF ILLUSTRATIONS 5001 R Nov 08/13

5002 R Nov 08/13
1 R Nov 08/13 5003 R Nov 08/13
2 Blank 5004 R Nov 08/13
5005 R Nov 08/13
INTRODUCTION 5006 R Nov 08/13
5007 R Nov 08/13
1 R Nov 08/13 5008 R Nov 08/13
2 R Nov 08/13 5009 R Nov 08/13
3 R Nov 08/13 5010 R Nov 08/13
4 Blank 5011 R Nov 08/13
5012 Blank
LEP
Page 1
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

LIST OF EFFECTIVE PAGES (Continued)

SUBJECT PAGE DATE SUBJECT PAGE DATE

REPAIR 7001 R Nov 08/13

7002 R Nov 08/13
6001 R Nov 08/13 7003 R Nov 08/13
6002 R Nov 08/13 7004 R Nov 08/13
6003 R Nov 08/13 7005 R Nov 08/13
6004 R Nov 08/13 7006 R Nov 08/13
6005 R Nov 08/13 7007 R Nov 08/13
6006 R Nov 08/13 7008 R Nov 08/13

REPAIR 1 FITS AND CLEARANCES

6007 R Nov 08/13 8001 R Nov 08/13

6008 R Nov 08/13 8002 R Nov 08/13
6009 R Nov 08/13 8003 R Nov 08/13
6010 R Nov 08/13 8004 R Nov 08/13
6011 R Nov 08/13
6012 R Nov 08/13 SPECIAL TOOLS, FIXTURES, EQUIPMENT AND
6013 R Nov 08/13 CONSUMABLES
6014 R Nov 08/13
6015 R Nov 08/13 9001 R Nov 08/13
6016 R Nov 08/13 9002 R Nov 08/13
6017 R Nov 08/13 9003 R Nov 08/13
6018 R Nov 08/13 9004 Blank

REPAIR 2 STORAGE AND TRANSPORTATION

6019 R Nov 08/13 15001 R Nov 08/13

6020 R Nov 08/13 15002 Blank
6021 R Nov 08/13
6022 R Nov 08/13 IPL INTRO
6023 R Nov 08/13
6024 R Nov 08/13 10001 R Nov 08/13
6025 R Nov 08/13 10002 R Nov 08/13
6026 R Nov 08/13 10003 R Nov 08/13
10004 R Nov 08/13
REPAIR 3
VENDOR LIST
6027 R Nov 08/13 10005 R Nov 08/13
6028 R Nov 08/13 10006 Blank
6029 R Nov 08/13
ALPHA/NUMERIC INDEX
6030 R Nov 08/13
6031 R Nov 08/13
6032 Blank 10007 R Nov 08/13
10008 R Nov 08/13
ASSEMBLY 10009 R Nov 08/13
10010 Blank

LEP
Page 2
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

LIST OF EFFECTIVE PAGES (Continued)

SUBJECT PAGE DATE SUBJECT PAGE DATE

DETAILED PARTS LIST

10011 R Nov 08/13

10012 R Nov 08/13
10013 R Nov 08/13
10014 R Nov 08/13
10015 R Nov 08/13
10016 Blank

LEP
Page 3
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

LEP
Page 4
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TABLE OF CONTENTS
PAGE
INTRODUCTION .................................................................................................................. INTRO 1
1. Introduction ................................................................................................................... INTRO 1
A. Layout ................................................................................................................... INTRO 1
B. General - Change in instructions ........................................................................... INTRO 2
C. Index of publications ............................................................................................. INTRO 2
D. Explanation of CAUTION and WARNING statements .......................................... INTRO 3
DESCRIPTION AND OPERATION ...................................................................................... 1
1. Description and Operation ............................................................................................ 1
A. General ................................................................................................................. 1
B. Data ....................................................................................................................... 1
C. Description ............................................................................................................ 1
D. Operation .............................................................................................................. 2
TESTING AND FAULT ISOLATION ..................................................................................... 1001
1. Testing .......................................................................................................................... 1001
A. Reason for the job ................................................................................................. 1001
B. Job set-up information ........................................................................................... 1001
C. Job set-up ............................................................................................................. 1002
(1) Test conditions ............................................................................................... 1002
D. Procedure .............................................................................................................. 1002
(1) Leakage test of the pressure relief valve (1-200) and the fuse plugs
(1-220) ........................................................................................................... 1002
(2) Inflation test ................................................................................................... 1003
2. Fault Isolation ............................................................................................................... 1004
A. Reason for the job ................................................................................................. 1004
B. Job set-up information ........................................................................................... 1004
C. Job set-up ............................................................................................................. 1004
D. Procedure .............................................................................................................. 1005
(1) Fault isolation of the main landing gear wheel assembly .............................. 1005

SCHEMATICS AND WIRING DIAGRAMS ........................................................................... NOT APPLICABLE

DISASSEMBLY .................................................................................................................... 3001
1. Disassembly ................................................................................................................. 3001
A. Reason for the job ................................................................................................. 3001
B. Job set-up information ........................................................................................... 3001
C. Job set-up ............................................................................................................. 3001
D. Procedure .............................................................................................................. 3002
(1) Initial steps .................................................................................................... 3002
(2) Removal of the plates .................................................................................... 3002
(3) Removal of the valve body (1-180) ............................................................... 3002
(4) Removal of the pressure relief valve (1-200) ................................................. 3003
(5) Removal of the fuse plugs (1-220) ................................................................ 3003
(6) Removal of the storage protector .................................................................. 3003
(7) Removal of the flange (1-120) ....................................................................... 3003
(8) Removal of the bearing cones (1-350) and (1-360) ...................................... 3003
(9) Removal of the keys (1-270) ......................................................................... 3004
(10) Removal of the heat shield assembly (1-280) ............................................... 3004
TOC
Page 1
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TABLE OF CONTENTS (Continued)

PAGE

CLEANING ........................................................................................................................... 4001

1. Cleaning ........................................................................................................................ 4001
A. Reason for the job ................................................................................................. 4001
B. Job set-up information ........................................................................................... 4001
C. Job set-up ............................................................................................................. 4002
D. Procedure .............................................................................................................. 4002
(1) Cleaning of the metal parts ........................................................................... 4003
(2) Cleaning of the valve assembly (1-150), the pressure relief valve (1-200)
and the fuse plugs (1-220) ............................................................................ 4003
(3) Cleaning of the bearing cones (1-350) and (1-360) ...................................... 4003
(4) Cleaning of the non-metal parts .................................................................... 4004
2. Paint removal ................................................................................................................ 4005
A. Reason for the job ................................................................................................. 4005
B. Job set-up information ........................................................................................... 4005
C. Job set-up ............................................................................................................. 4006
D. Procedure .............................................................................................................. 4006
(1) Initial steps .................................................................................................... 4006
(2) Chemical procedure ...................................................................................... 4006
(3) Abrasive procedure ....................................................................................... 4006
INSPECTION/CHECK .......................................................................................................... 5001
1. Inspection/Check .......................................................................................................... 5001
A. Reason for the job ................................................................................................. 5001
B. Job set-up information ........................................................................................... 5001
C. Job set-up ............................................................................................................. 5002
D. Procedure .............................................................................................................. 5002
(1) General .......................................................................................................... 5002
(2) Inspection of the main landing gear wheel assembly .................................... 5004
(3) Wheel body (1-420) and the flange (1-120) .................................................. 5006
(4) Bushes (1-380) and (1-400) .......................................................................... 5009
(5) Bearing cups (1-390) and (1-410) and bearing cone (1-350) and (1-360) .... 5009
(6) Keys (1-270) .................................................................................................. 5009
(7) Bearing seals (1-320) and (1-340) ................................................................ 5010
(8) Heat shield assembly (1-280) ........................................................................ 5010
(9) Ring assembly (1-080) .................................................................................. 5010
REPAIR ................................................................................................................................ 6001
1. Repair - General ........................................................................................................... 6001
A. Reason for the job ................................................................................................. 6001
B. Job set-up information ........................................................................................... 6001
C. Job set-up ............................................................................................................. 6002
D. Procedure .............................................................................................................. 6002
(1) “Blend repair” procedure ............................................................................... 6002
(2) “50-to-1” blend repair procedure ................................................................... 6002
(3) Corrosion removal from aluminium alloy parts .............................................. 6003
(4) Corrosion removal from steel parts ............................................................... 6003
(5) Temporary protection ..................................................................................... 6004
(6) Symbols on figures ........................................................................................ 6004
TOC
Page 2
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TABLE OF CONTENTS (Continued)

PAGE

REPAIR 1 ............................................................................................................................. 6007

1. Repair 1 - Repair of the Wheel Body (1-420) and the Flange (1-120) .......................... 6007
A. Reason for the job ................................................................................................. 6007
B. Job set-up information ........................................................................................... 6007
C. Job set-up ............................................................................................................. 6008
D. Procedure .............................................................................................................. 6008
(1) General repair of light signs of corrosion or impact damage ......................... 6008
(2) Removal of pitting from the wheel body (1-420) and the flange (1-120) ....... 6008
(3) Removal of damage from the inner hub of the wheel body (1-420) .............. 6009
(4) Replacement of the thread insert (1-440) ...................................................... 6017
REPAIR 2 ............................................................................................................................. 6019
1. Repair 2 - Replacement of the Bushes (1-380) and (1-400) ......................................... 6019
A. Reason for the job ................................................................................................. 6019
B. Job set-up information ........................................................................................... 6019
C. Job set-up ............................................................................................................. 6020
D. Procedure .............................................................................................................. 6020
(1) Removal of the bushes (1-380) and (1-400) and of the bearing cups (1-390)
and (1-410) .................................................................................................... 6020
(2) Repair of the bores of the wheel body (1-420) .............................................. 6021
(3) Installation of the bearing cups (1-390) and (1-410) ..................................... 6021
(4) Installation of the bushes (1-380) and (1-400) .............................................. 6022
REPAIR 3 ............................................................................................................................. 6027
1. Repair 3 - Protection ..................................................................................................... 6027
A. Reason for the job ................................................................................................. 6027
B. Job set-up information ........................................................................................... 6027
C. Job set-up ............................................................................................................. 6027
D. Procedure .............................................................................................................. 6028
(1) Protection of the bushes (1-380) and (1-400) ............................................... 6028
ASSEMBLY .......................................................................................................................... 7001
1. Assembly ...................................................................................................................... 7001
A. Reason for the job ................................................................................................. 7001
B. Job set-up information ........................................................................................... 7001
C. Job set-up ............................................................................................................. 7002
(1) First steps ...................................................................................................... 7002
(2) Lubrication of the bearing cones (1-350) and (1-360) ................................... 7003
D. Procedure .............................................................................................................. 7003
(1) Installation of the fuse plugs (1-220) ............................................................. 7003
(2) Installation of the heat shield assembly (1-280) ............................................ 7004
(3) Installation of the keys (1-270) ...................................................................... 7004
(4) Installation of the bearing cones (1-360) and (1-350) ................................... 7004
(5) Installation of the storage protector ............................................................... 7005
(6) Installation of the pressure relief valve (1-200) ............................................. 7005
(7) Installation of the valve assembly (1-150) on the wheel body (1-420) .......... 7005
(8) Assembly of the main landing gear wheel assembly ..................................... 7006
(9) Installation of the identification and amendment plate (1-460) ...................... 7007
(10) Last steps ...................................................................................................... 7007
TOC
Page 3
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TABLE OF CONTENTS (Continued)

PAGE

FITS AND CLEARANCES .................................................................................................... 8001

1. Fits and clearances ....................................................................................................... 8001
A. General ................................................................................................................. 8001
B. Layout ................................................................................................................... 8001
C. Fits and clearances table ...................................................................................... 8001
2. Torque values ............................................................................................................... 8004
A. General ................................................................................................................. 8004
B. Torque values table ............................................................................................... 8004
SPECIAL TOOLS, FIXTURES, EQUIPMENT AND CONSUMABLES ................................. 9001
1. Special tools, fixtures and equipment ........................................................................... 9001
A. General ................................................................................................................. 9001
B. Special tools and equipment table ........................................................................ 9001
2. Consumables ................................................................................................................ 9003

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

REMOVAL ............................................................................................................................ NOT APPLICABLE

INSTALLATION .................................................................................................................... NOT APPLICABLE

SERVICING .......................................................................................................................... NOT APPLICABLE

STORAGE AND TRANSPORTATION .................................................................................. 15001
1. Storage Instructions ...................................................................................................... 15001
A. Reason for the job ................................................................................................. 15001
B. Job set-up information ........................................................................................... 15001
C. Job set-up ............................................................................................................. 15001
D. Procedure .............................................................................................................. 15001
(1) Storage .......................................................................................................... 15001

REWORK (SERVICE BULLETIN ACCOMPLISHMENT PROCEDURES) ........................... NOT APPLICABLE

ILLUSTRATED PARTS LIST ................................................................................................ 10001
1. Introduction to the Illustrated Parts List ........................................................................ 10001
A. Policy ..................................................................................................................... 10001
B. How to use the Illustrated Parts List ...................................................................... 10001
C. Revision ................................................................................................................ 10002
D. General ................................................................................................................. 10003
E. Words and Abbreviations used ............................................................................. 10004
VENDOR’S CODE LIST ............................................................................................... 10005
REFERENCE ALPHANUMERICAL INDEX .................................................................. 10007
DETAILED PARTS LIST ............................................................................................... 10011

TOC
Page 4
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

LIST OF ILLUSTRATIONS

FIGURE TITLE PAGE

1 General View .............................................................................................................. 3

5001 Crack Detection and BRINELL Hardness Test Areas ................................................. 5008
6001 “50-to-1” Blend Repair ................................................................................................ 6005
6002 Symbol Legend ........................................................................................................... 6006
6003 Repair of the Wheel Body (1-420) .............................................................................. 6010
Removal of Pitting from the Wheel Body (1-420) and the Flange (1-120) (Sheet 1
of 2) ........................................................................................................................ 6013
Removal of Damage from the Inner Hub of the Wheel Body (1-420) (Sheet 2 of
2) ............................................................................................................................ 6014
6005 Repair of the Flange (1-120) ....................................................................................... 6015
6006 Replacement of the Thread Insert (1-440) .................................................................. 6018
6007 Repair of the Bearing Cups (1-390) and (1-410) and the Bush Housing (brake
side) ............................................................................................................................ 6023
6008 Repair of the Bearing Cups (1-390) and (1-410) and the Bush Housing (valve side) .. 6025
6009 Protective treatment of the Wheel Body (1-420) and the Flange (1-120) ................... 6029
7001 Lubrication of the Main Landing Gear Wheel Assembly ............................................. 7008
8001 Location of Fits ........................................................................................................... 8003

DETAILED PARTS LIST

01 Main Landing Gear Wheel Assembly ......................................................................... 10012

LOI
Page 1
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

LOI
Page 2
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

INTRODUCTION

TASK 32-45-92-871-801-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 Simplified 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 identification. 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 verified by actual performance. MESSIER-BUGATTI-DOWTY

will revise them as necessary to give current data. Procedures verified on desk:

– TESTING AND FAULT ISOLATION: July 2000.

– DISASSEMBLY: July 2000.
– ASSEMBLY: July 2000.

INTRO
Page 1
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

(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 °C Degrees Fahrenheit °F
(or centigrade)
Millimeter mm Inch in
Newton-meter N.m Pound force per foot or lbf.ft or lbf.in
Pound force per inch
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-BUGATTI-
DOWTY COMPONENT MAINTENANCE MANUAL CR47375. You can refer to this index on
MESSIER-BUGATTI-DOWTY secured website at https://landingpad.safranmbd.com.

INTRO
Page 2
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

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-BUGATTI-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.

WARNING : THE CHEMICALS REFERRED TO IN THIS MANUAL ARE DANGEROUS 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 SAFETY DATA SHEET”
(USUALLY SUPPLIED WITH EACH CHEMICAL).

INTRO
Page 3
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

INTRO
Page 4
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

DESCRIPTION AND OPERATION

TASK 32-45-92-870-801-A01
1. Description and Operation

A. General
(1) The main landing gear wheel assembly has a hydraulically operated brake and a tachometer
generator drive cap installed.

(2) Use tubeless tires for this wheel.

B. Data
(1) Characteristics of the main landing gear wheel assembly:

– Weight: 16,811 kg (37.062 lb).

– Overall diameter: 406,4 mm (16.000 in).
– Overall width: 185,6 mm (7.307 in).
– Static balancing: Made originally.
– Burst pressure of the pressure relief valve: between 25,3 and 30,4 bar (365 and 440 psi).
– Melting point of the fuse plugs: 232 °C (449.6 °F).

C. Description
(Ref. Fig. 1)

(1) General

(a) The main landing gear wheel assembly has a complete wheel body and a flange.
(b) A ring assembly holds the wheel body and the flange together.
(c) The lock plate attached by the screws, holds the ring assembly.
(d) A preformed packing seals the assembly.

(2) Complete wheel body

(a) On the brake side:

1 Nine keys in the complete wheel body hold the tenons of the brake disks.
2 A bearing cone and a bearing cup.
3 An inner bush, a bearing seal and a retaining ring to give protection to the bearing
cone.
4 A heat shield assembly between the keys and the body of the wheel gives protection
to the complete wheel body from the heat released by the brake.
5 Three fuse plugs in the complete wheel body have a body and an eutectic material.

Page 1
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

(b) On the valve side:

1 A bearing cone and a bearing cup
2 A valve assembly.
3 A preformed packing seals the valve assembly in the complete wheel body.
4 A pressure relief valve that releases the tire pressure if the pressure becomes too
high.
5 A preformed packing seals the pressure relief valve in the complete wheel body.

D. Operation
(1) The fuse plug ((Ref. Fig. 1), Detail C)

(a) If the temperature of the main landing gear wheel assembly increases to a specified
value 232 °C (449.6 °F), the eutectic material melts and releases the tire pressure. This
prevents the bursting of the tire.

Page 2
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

General View
FIGURE 1/GRAPHIC32-45-92-991-001-A01

Page 3
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

Page 4
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TESTING AND FAULT ISOLATION

TASK 32-45-92-700-801-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

F27190000 1 Tool for the leakage test of the pressure relief
valve (1-200) and the fuse plug (1-220)
89901 1 Spatula

(2) Consumables

(a) The table below gives the consumables 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 NAME
Silicone grease as per SAE-AMS-G-4343 or Silicone grease
SAE-AS8660
Commercially available Dry nitrogen (99.5 % pure as per MIL-P-27401
Type 1 Grade A)

Page 1001
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

(3) Referenced information

REFERENCE DESIGNATION
ILLUSTRATED PARTS LIST, Fig. IPL 01 Main Landing Gear Wheel Assembly
AIRCRAFT MAINTENANCE MANUAL (AMM) Applicable tire inflation procedure for the
aircraft

C. Job set-up
SUBTASK 32-45-92-800-001-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 01)

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: A CHEMICAL REACTION IS POSSIBLE BETWEEN ATMOSPHERIC OXYGEN

AND THE GASES FROM THE INNER PART OF THE TIRE. THIS REACTION
CAN CAUSE A TIRE EXPLOSION DURING SOME OVERHEATED WHEEL
CONDITIONS. TO PREVENT THIS RISK, YOU MUST USE DRY NITROGEN TO
INFLATE THE WHEEL AND TIRE ASSEMBLIES FOR ON-AIRCRAFT USE.

SUBTASK 32-45-92-790-001-A01
(1) Leakage test of the pressure relief valve (1-200) and the fuse plugs (1-220)

(a) Initial steps

1 Apply a layer of silicone grease to the preformed packings (1-210) and (1-250).
2 Install the preformed packings (1-210) on the pressure relief valve (1-200) with the
tool 89901.
3 Install the preformed packings (1-250) on the fuse plugs (1-220) with the tool 89901.

Page 1002
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

4 Install the pressure relief valve (1-200) on the tool F27190000.

5 Torque the pressure relief valve (1-200) to a load of 9,5 N.m (84.1 lbf.in).
6 Torque the fuse plugs (1-220) to a load of 9,5 N.m (84.1 lbf.in).

(b) Supply dry air or nitrogen with a pressure of between 17,2 and 18,5 bar (250 and
270 psi) to the tool F27190000.

(c) If necessary, adjust the pressure to the value between 17,2 and 18,5 bar (250 and
270 psi).

(d) Hold the pressure for 2 minutes and make sure that there is no decrease in pressure.

(e) Apply a solution of soap and water to the pressure relief valve (1-200) and the fuse
plug (1-220).

(f) Make sure that there are no air bubbles or leakage.

(g) Decrease the pressure to zero.

(h) Flush the tool F27190000 with the pressure relief valve (1-200) and the fuse plug (1-220)
with cold water to remove the soap and water solution.

(i) Remove the pressure relief valve (1-200) and the fuse plug (1-220) from the tool
F27190000.

SUBTASK 32-45-92-790-002-A01
(2) Inflation test

(a) During the inflation test, remove the valve cap (1-160).

(b) Inflate the tire to the specified 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 assembly (1-150)
and the pressure relief valve (1-200).

(d) Make sure that there are no air bubbles or leakage.

(e) At the end of this check, flush with water the solution of soap and water.

(f) After this, keep the inflated tire and the wheel assembled together for 12 or 24 hours to
get the tire in the correct position.

(g) If necessary, adjust the inflation pressure to the correct value.

(h) After this, keep the inflated tire and the wheel assembled together for 12 or 24 hours to
get the tire in the correct position.

(i) Make sure that the pressure drop is less than 2.5 percent after 12 hours, or 5 percent
after 24 hours.

Page 1003
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TASK 32-45-92-810-801-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
ILLUSTRATED PARTS LIST, Fig. IPL 01 Main Landing Gear Wheel Assembly
SUBTASK 32-45-92-000-001-A01 Initial steps
SUBTASK 32-45-92-010-002-A01 Removal of the valve body (1-180)
SUBTASK 32-45-92-010-003-A01 Removal of the pressure relief valve (1-200)
SUBTASK 32-45-92-010-004-A01 Removal of the fuse plugs (1-220)
SUBTASK 32-45-92-010-006-A01 Removal of the flange (1-120)
SUBTASK 32-45-92-200-002-A01 Inspection of the main landing gear wheel
assembly
SUBTASK 32-45-92-410-002-A01 Installation of the fuse plugs (1-220)
SUBTASK 32-45-92-410-007-A01 Installation of the pressure relief valve (1-200)
SUBTASK 32-45-92-410-008-A01 Installation of the valve assembly (1-150) on
the wheel body (1-420)
SUBTASK 32-45-92-440-001-A01 Assembly of the main landing gear wheel
assembly

C. Job set-up
Not applicable.

Page 1004
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

D. Procedure
(Ref. Fig. IPL 01)

SUBTASK 32-45-92-810-001-A01
(1) Fault isolation of the main landing gear wheel assembly

FAULT POSSIBLE CAUSES CORRECTION

On a condition or at the Detection of cracks by the
specified inspection intervals eddy current inspection Refer to the CHECK section.
procedure.
Impact damage on the main Refer to the CHECK and the REPAIR
Do a visual inspection.
landing gear wheel assembly sections.
Do a check for buckling. Refer to the CHECK section.
Do a check of unbalance. Refer to the ASSEMBLY section.
Tire bursting Refer to the CHECK and REPAIR
Do a visual inspection.
sections.
If the contour of the main
Discard the main landing gear wheel
landing gear wheel assembly
assembly.
is damaged.
If the contour of the main
landing gear wheel assembly
is not damaged, examine Refer to the CHECK section.
for cracks by eddy current
inspection procedure.
Do a check for buckling. Refer to the CHECK section.
Do a check of unbalance. Refer to the ASSEMBLY section
Main landing gear wheel Examine the fuse plugs
Refer to the CHECK section.
assembly too hot (1-220).
Do a visual inspection (change
Refer to the CHECK section.
in color).
Do a hardness test. Refer to the CHECK section.
Do an eddy current inspection. Refer to the CHECK section.
Loss of inflation pressure The valve core (1-170) is Tighten the valve core (1-170)
loose or defective. or replace the valve core
(1-170) (Ref. SUBTASK
32-45-92-000-001-A01) and (Ref.
SUBTASK 32-45-92-410-008-A01).

Page 1005
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

FAULT POSSIBLE CAUSES CORRECTION

The valve assembly (1-150) is Tighten the valve assembly
loose. (1-150) (Ref. SUBTASK
32-45-92-410-008-A01).
The preformed packing Replace the preformed packing
(1-190) is defective. (1-190) (Ref. SUBTASK
32-45-92-010-002-A01) and (Ref.
SUBTASK 32-45-92-410-008-A01).
The pressure relief valve Tighten the pressure relief
(1-200) is loose. valve (1-200) (Ref. SUBTASK
32-45-92-410-007-A01).
The preformed packing Replace the preformed packing
(1-210) is defective. (1-210) (Ref. SUBTASK
32-45-92-010-003-A01) and (Ref.
SUBTASK 32-45-92-410-007-A01).
The pressure relief valve Replace the pressure relief valve
(1-200) is defective. (1-200) and the preformed
packing (1-210) (Ref. SUBTASK
32-45-92-010-003-A01) and (Ref.
SUBTASK 32-45-92-410-007-A01).
The preformed packing Replace the preformed packing
(1-110) is defective. (1-110) (Ref. SUBTASK
32-45-92-010-006-A01) and (Ref.
SUBTASK 32-45-92-440-001-A01).
The fuse plug (1-220) is not Tighten the fuse plug (1-220) (Ref.
correctly installed. SUBTASK 32-45-92-410-002-A01).
The fuse plug (1-220) is Replace the preformed packing
porous. (1-210) (Ref. SUBTASK
32-45-92-010-003-A01) and (Ref.
SUBTASK 32-45-92-410-007-A01).
The preformed packing Replace the preformed packing
(1-250) is defective. (1-250) (Ref. SUBTASK
32-45-92-010-004-A01) and (Ref.
SUBTASK 32-45-92-410-002-A01).
The tubewell of the complete Inspect the complete wheel body
wheel body (1-130) or the (1-130) or the flange (1-120)
flange (1-120) has a fatigue for cracks (Ref. SUBTASK
crack. 32-45-92-200-002-A01).

Page 1006
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

DISASSEMBLY

TASK 32-45-92-000-801-A01
1. Disassembly

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 disassemble 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

89901 1 Spatula

(2) Consumables

Not applicable.

(3) Referenced information

REFERENCE DESIGNATION
ILLUSTRATED PARTS LIST, Fig. IPL 01 Main Landing Gear Wheel Assembly

C. Job set-up
Not applicable.

Page 3001
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

D. Procedure
(Ref. Fig. IPL 01)

WARNING : DO NOT GET CADMIUM IN YOUR MOUTH. CADMIUM THAT IS SWALLOWED

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: 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 32-45-92-000-001-A01
(1) Initial steps

WARNING : BEFORE YOU DISASSEMBLE THE WHEEL, DEFLATE THE TIRE.

(a) Remove the valve cap (1-160) from the valve assembly (1-150).

(b) Gradually loosen the valve core (1-170) of the valve assembly (1-150) to deflate the tire.

(c) After you deflate the tire, remove the valve core (1-170) from the valve body (1-180).

SUBTASK 32-45-92-010-001-A01
(2) Removal of the plates

(a) Remove the protective rubber sealant applied to the joints with the tool 89901.

(b) If necessary, record the data written on the identification and amendment plate (1-460).

(c) Remove the identification and amendment plate (1-460).

SUBTASK 32-45-92-010-002-A01
(3) Removal of the valve body (1-180)

(a) Remove the protective rubber sealant applied to the joints with the tool 89901.

(b) Loosen and remove the valve body (1-180).

(c) Remove the preformed packing (1-190) with the tool 89901. Discard it.

Page 3002
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-010-003-A01
(4) Removal of the pressure relief valve (1-200)

(a) Remove the protective rubber sealant applied to the joints with the tool 89901.

(b) Loosen and remove the pressure relief valve (1-200).

(c) Remove the preformed packing (1-210) with the tool 89901. Discard it.

SUBTASK 32-45-92-010-004-A01
(5) Removal of the fuse plugs (1-220)

(a) Loosen and remove the fuse plugs (1-220). Discard them.

(b) Remove the preformed packings (1-250) with the tool 89901. Discard them.

SUBTASK 32-45-92-010-005-A01
(6) Removal of the storage protector

(a) Cut and discard the lockwire (1-010).

(b) Remove the screws (1-020) and the washers (1-030).

(c) If necessary, remove the storage protector.

SUBTASK 32-45-92-010-006-A01
(7) Removal of the flange (1-120)

(a) Cut and discard the lockwire (1-035).

(b) Remove the screws (1-060).

(c) Remove the lock plate (1-070).

(d) Remove the ring assembly (1-080) to separate the flange (1-120) from the main landing
gear wheel assembly.

(e) Remove the preformed packing (1-110) from the flange (1-120).

SUBTASK 32-45-92-010-007-A01
(8) Removal of the bearing cones (1-350) and (1-360)

(a) Removal of the bearing cone (1-350)

1 Remove the retaining ring (1-310).

2 Remove the bearing seal (1-320).
3 Remove the bearing cone (1-350).
Page 3003
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

(b) Removal of the bearing cone (1-360)

1 Remove the retaining ring (1-330).

2 Remove the bearing seal (1-340).
3 Remove the bearing cone (1-360).

SUBTASK 32-45-92-010-008-A01
(9) Removal of the keys (1-270)

NOTE: Do not remove the keys (1-270) unless the keys (1-270) or the heat shield
assembly (1-280) are damaged. Refer to the CHECK section.

(a) Unlock the bolts (1-260) by removing the metal from the key slots.

(b) Remove the bolts (1-260). Discard them.

(c) Remove the keys (1-270)

SUBTASK 32-45-92-010-009-A01
(10) Removal of the heat shield assembly (1-280)

(a) Carefully pull out and remove the heat shield assembly (1-280).

(b) Remove the studs (1-300).

Page 3004
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

CLEANING

TASK 32-45-92-100-801-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: You can use alternatives for the listed items.

NOTE: Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND

CONSUMABLES for full details.

REFERENCE QTY NAME

Commercially available 1 Dry compressed air source with a pressure
reducing valve

(2) Consumables

(a) The table below gives the consumables necessary to clean the component.
NOTE: You can use alternatives for the listed items.

NOTE: Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND

CONSUMABLES for full details.

REFERENCE NAME
Commercially available Clean and soft lint-free cloth
Bearing grease as per MIL-PRF-81322 Bearing grease
MOBIL AVIATION GREASE SHC 100 Bearing grease
White spirit or cleaning product as per Degreasing solvent
MIL-PRF-680 Type II or III
WD-40 or corrosion preventive compound as Corrosion preventive oil
per MIL-PRF-81309

Page 4001
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

(3) Referenced information

REFERENCE DESIGNATION
ILLUSTRATED PARTS LIST, Fig. IPL 01 Main Landing Gear Wheel Assembly
Standard Practices Manual (SPM) 32-09-01, Wheels and brakes cleaning/degreasing
section 75
Standard Practices Manual (SPM) 32-09-01, Wheel bearing
section 77

C. Job set-up
Not applicable.

D. Procedure
(Ref. Fig. IPL 01)

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 FLAMMABLE.

WARNING : USE THE APPROVED HAND AND EYE PROTECTION 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:

– FLUSH IT AWAY WITH CLEAN WATER.

– GET MEDICAL AID.

WARNING : DO NOT GET CADMIUM IN YOUR MOUTH, CADMIUM THAT IS SWALLOWED

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.

Page 4002
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-110-001-A01
(1) Cleaning of the metal parts

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 32-45-92-110-002-A01
(2) Cleaning of the valve assembly (1-150), the pressure relief valve (1-200) and the fuse
plugs (1-220)

CAUTION: 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 ASSEMBLY (1-150), THE PRESSURE

RELIEF VALVE (1-200) AND THE FUSE PLUGS (1-220) IN THE
SOLVENTS/CLEANING PRODUCTS.

(a) Clean the threads of the wheel and the valve assembly (1-150) to remove contamination.
(b) Rinse with cold, clean water and let to dry.
(c) Clean the external surfaces of the valve assembly (1-150), the pressure relief valve
(1-200) and the fuse plugs (1-220) with a clean and soft lint-free cloth made moist with
cleaning product or degreasing solvent or a mild soap and water solution.
(d) Dry all the parts with compressed air or with a clean and soft lint-free cloth.

SUBTASK 32-45-92-110-003-A01
(3) Cleaning of the bearing cones (1-350) and (1-360)

CAUTION: IMPACT, DIRT, DUST, MOISTURE OR OTHER CONTAMINATION CAN

DAMAGE THE BEARING CONES (1-350) AND (1-360). USE RUBBER
GLOVES WHEN YOU HANDLE THE BEARING CONES (1-350) AND (1-360).

CAUTION: DO NOT USE COMPRESSED AIR TO TURN THE BEARING CONES (1-350)
AND (1-360). THIS CAN CAUSE DAMAGE TO THEM.

(a) Clean the bearing cones (1-350) and (1-360). Refer to section 77 of the SPM 32-09-01.
(b) Apply the corrosion preventive oil to the bearing cones (1-350) and (1-360) if you do not
examine them and fill them with bearing grease in less than 2 hours.
Page 4003
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-110-004-A01
(4) Cleaning of the non-metal parts

CAUTION: USE ONLY THE APPROVED SOLVENTS/CLEANING PRODUCTS OR THEIR

EQUIVALENTS GIVEN IN THIS PROCEDURE TO CLEAN THE SEALS AND
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 cleaning
product or a mild soap and water solution.

(b) Dry all the parts with compressed air or with a clean and soft lint-free cloth.

Page 4004
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TASK 32-45-92-100-802-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, fixtures and equipment necessary to remove the paint
from the component.
NOTE: You can use alternatives for the listed items.

NOTE: Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND

CONSUMABLES for full details.

REFERENCE QTY NAME

Commercially available 1 Dry compressed air source with a pressure
reducing valve

(2) Consumables
(a) The table below gives the consumables necessary to remove the paint from the
component.
NOTE: You can use alternatives for the listed items.

NOTE: Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND

CONSUMABLES for full details.

REFERENCE NAME
Commercially available Clean and soft lint-free cloth
Commercially available Mask material

(3) Referenced information

REFERENCE DESIGNATION
ILLUSTRATED PARTS LIST, Fig. IPL 01 Main Landing Gear Wheel Assembly
Standard Practices Manual (SPM) 32-09-01, Paint stripping by local application of PAINTEX
section 28 - SCALPEX - ARDROX 2526
Standard Practices Manual (SPM) 32-09-01, Paint stripping by the bath method
section 29
Standard Practices Manual (SPM) 32-09-01, Paint stripping by “seed” blasting method
section 30 (Apricot stone blasting)

Page 4005
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

REFERENCE DESIGNATION
Standard Practices Manual (SPM) 32-09-01, Paint removal by plastic media blasting
section 70
SUBTASK 32-45-92-110-006-A01 Chemical procedure
SUBTASK 32-45-92-120-001-A01 Abrasive procedure

C. Job set-up
Not applicable.

D. Procedure
(Ref. Fig. IPL 01)
SUBTASK 32-45-92-110-005-A01
(1) Initial steps

(a) If the bearing cups (1-390) and (1-410) and the bushes (1-380) and (1-400) are not
removed, apply mask material to the joint lines between them and the wheel body (1-420).
(b) Use one of the two procedures that follow: (Ref. SUBTASK 32-45-92-110-006-A01) or
(Ref. SUBTASK 32-45-92-120-001-A01).

SUBTASK 32-45-92-110-006-A01
(2) Chemical procedure

CAUTION: DO NOT USE A WIRE BRUSH TO REMOVE PAINT FROM ALUMINIUM

PARTS. A WIRE BRUSH CAN CAUSE DAMAGE TO THE ANODIZED LAYER
ON THESE PARTS.

(a) You can remove paint from the wheel body (1-420) with one of the procedures that follow:
1 Refer to section 28 of the SPM 32-09-01.
2 Refer to section 29 of the SPM 32-09-01.

SUBTASK 32-45-92-120-001-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) You can remove paint from the wheel body (1-420) with one of the procedures that follow:
1 Refer to section 30 of the SPM 32-09-01.
2 Refer to section 70 of the SPM 32-09-01.

Page 4006
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

INSPECTION/CHECK

TASK 32-45-92-200-801-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 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

A36733 1 Key width measurement equipment
Commercially available 1 Feeler gauge (0,05 mm (0.002 in))
Commercially available As Required Magnifiers (for visual inspections)
Q47252 1 Key width measurement equipment
Commercially available 1 Binocular microscope

(2) Consumables

Not applicable.

(3) Referenced information

REFERENCE DESIGNATION
ILLUSTRATED PARTS LIST, Fig. IPL 01 Main Landing Gear Wheel Assembly
Standard Practices Manual (SPM) 32-09-01, Local repair of the surface finish on aluminum
section 14 alloys by chemical oxidizing with ALODINE
1200
Standard Practices Manual (SPM) 32-09-01, Detection of defects by Fluorescent Penetrant
section 38 Inspection (FPI)
Standard Practices Manual (SPM) 32-09-01, Detection of defects by eddy current inspection
section 41 (ET)
Standard Practices Manual (SPM) 32-09-01, Detection of defects by Magnetic Particle
section 42 Inspection (MPI)

Page 5001
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

REFERENCE DESIGNATION
Standard Practices Manual (SPM) 32-09-01, Wheel bearing
section 77
SUBTASK 32-45-92-200-002-A01 Inspection of the main landing gear wheel
assembly

C. Job set-up
Not applicable.

D. Procedure
(Ref. Fig. IPL 01)

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

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

SUBTASK 32-45-92-200-001-A01
(1) General

(a) Do an inspection for the causes that follow:

1 At each tire replacement, refer to the table below.

2 Every 5 tire replacements, refer to the table below.
NOTE: The general inspection of the main landing gear wheel is let to
the operator’s decision which must agree with his experience. But
MESSIER-BUGATTI-DOWTY recommends to do this inspection every
5 tire replacements.

3 Do the same inspections at every 5 tire replacements on a main landing gear wheel
assembly which had a tire that burst or deflate during landing and takeoff roll.
4 Discard the wheel body (1-420) that show signs of a rolling touch with the runway.

Page 5002
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TIRE REPLACEMENTS
PART INSPECTION PROCEDURE *
1 2 3 4 5
Complete wheel body Visual inspection
(1-130)
– Worn areas of paint X X X X X
– Tire bead seat areas X X X X X X
– Mating face X X X X X
– Air vent holes X X X X X
– Bushes X X X X X
– Bearing cups X X X X X
– Seals X X X X X X
– Keys X X X X X
– Heat shield assembly X X X X X
Eddy current inspection
– Tire bead seat area X X X X X X
Conductivity (IACS) and hardness test X
Wheel body (1-420) Visual inspection
– Worn areas of paint X
– Tire bead seat areas X X
– Mating face X
– Air vent holes X
– Keys areas X X
– Bush housings X X
– Bearing cup housing X X
– Tapped holes for the fuse plugs X X
(1-220)
Fluorescent Penetrant Inspection X X
Eddy current inspection
– Tire bead seat area X X
– Key areas X X
– Air vent holes X X
Conductivity (IACS) and hardness test X
Bushes (1-380) and Visual inspection X X X X X X
(1-400)
Bearing cones (1-350) Visual inspection X X X X X X
and (1-360)

Page 5003
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TIRE REPLACEMENTS
PART INSPECTION PROCEDURE *
1 2 3 4 5
Bearing seals (1-320) Visual inspection X X X X X X
and (1-340)
Heat shield (1-290) Visual inspection X X X X X X
Keys (1-270) Visual inspection X X X X X X
Eddy current inspection X X
Flange (1-120) Visual inspection
– Worn areas of paint X X X X X
– Tire bead seat area X X X X X X
– Mating face X X X X X
– Tapped holes for the inflation valve X X X X X
and the pressure relief valve (1-200)
Eddy current inspection
– Tire bead seat areas X X
Hardness test X
Ring assembly (1-080) Visual inspection X X X X X X
Fluorescent penetrant inspection X X

* = Signs of overheating or overloading (fuse plugs melted, discoloration of the wheel surface)
or doubt.

SUBTASK 32-45-92-200-002-A01
(2) Inspection of the main landing gear wheel assembly
(Ref. Fig. 5001)

(a) Visual inspection

1 Complete wheel body (1-130) and flange (1-120)

a Make sure that there are no damage, hit marks, corrosion, scores or scratches
and notches, specially on the rim and in the tire bead seat area.
b Make sure, by the 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:
– In air vent holes.
– In the internal and external blending radii of the tire bead seat area.
– On the mating faces of the complete wheel body (1-130) and the flange (1-120).

2 Bushes (1-380) and (1-400)

a Make sure that the bushes (1-380) and (1-400) do not turn in their housing. No
movement is permitted. If there is a defect, refer to the REPAIR 2 section.
Page 5004
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

b Make sure that the clearance between the bottom of the bush housing and the
bushes (1-380) and (1-400) is not less than 0,050 mm (0.0020 in). If not, refer to
the REPAIR 2 section.

3 Bearing cups (1-390) and (1-410)

a Make sure that the bearing cups (1-390) and (1-410) 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.
b Make sure that the bearing cups (1-390) and (1-410) do not turn in their housing.
No movement is permitted. If there is a defect, refer to the REPAIR 2 section.
c Make sure that the clearance between the bottom of the bearing cup housing
and the bearing cups (1-390) and (1-410) is not more than 0,050 mm (0.0020 in).
If not, refer to the REPAIR 2 section.

4 Keys (1-270)
a Make sure that the keys (1-270) are correctly attached and in a satisfactory
condition.
b Make sure that there are no signs of peening, distortion and scratches. Use the
tool Q47252 for the keys (1-270A) and the tool A36733 for the keys (1-270B).
NOTE: For the keys (1-270A), BEFORE SB C20545-32-029, an indentation
surface of 5 x 5 mm (0.20 x 0.20 in) maximum, and an indentation
depth of 0,3 mm (0.012 in) are permitted.
For the keys (1-270B), AFTER SB C20545-32-029, an indentation
surface of 5 x 5 mm (0.20 x 0.20 in) maximum, and an indentation
depth of 0,8 mm (0.031 in) are permitted.

c Make sure that the keys (1-270) are not loose.

d If there is a defect, refer to the DISASSEMBLY section.

5 Heat shield assembly (1-280)

a Make sure that the heat shield assembly (1-280) is correctly attached and in a
satisfactory condition.
b Make sure that there are no cracks and wear. Dents, scratches and discoloration
are permitted.
c If there is a defect, discard the heat shield assembly (1-280).

(b) Eddy current inspection, refer to the inspection table and (Ref. Fig. 5001)
1 Do an eddy current inspection in the specified areas (Ref. Fig. 5001). Refer to
section 41 of the SPM 32-09-01.
2 Defect acceptance standards

CAUTION: NO CRACK OR SIGN OF CRACK IS PERMITTED.

a You can ignore the defects less than 2 mm (0.0787 in) long. This is not applicable
if you find the defects by the use of a binocular or the penetrant procedure.
Page 5005
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-200-003-A01
(3) Wheel body (1-420) and the flange (1-120)
(Ref. Fig. 5001)

(a) Visual inspection

1 Do the same inspection as in (Ref. SUBTASK 32-45-92-200-002-A01).

2 Do the inspection of the housing for the bearing cups (1-390) and (1-410). If there
are corrosion and circumferential grooves, refer to the REPAIR 2 section.
3 Do the inspection of the housing for the bushes (1-380) and (1-400). If there are
corrosion and circumferential grooves, refer to the REPAIR 2 section.
4 Do the inspection of the housing for the valve assembly (3-050), the pressure relief
valve (1-200) and the fuse plugs (1-220).
5 Make sure that there are no crushed and stripped threads.

(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 a fluorescent penetrant inspection. Refer to section 38 of the SPM 32-09-01.

2 If there is a defect, discard the defective part.

(c) Eddy current inspection

1 Do an eddy current test in the areas given below: (Ref. Fig. 5001). Refer to section
41 of the SPM 32-09-01.
– Blending area of the bead seat.
– Blending area of the air vent holes.
– The tenons of the keys (1-270) and the holes for the bolts (1-260) which attach the
keys (1-270).

(d) Conductivity (IACS) and hardness test after overheating or overloading (when the fuse
plug (1-220) is melted or if you are not sure) (Ref. Fig. 5001)

1 Inspection of the wheel body (1-420) (brake side)

a Hardness test (Ref. Fig. 5001)
Do a BRINELL hardness test (three points 120° apart) with the given requirements:
– A 10 mm (0.39 in) dia. ball under a 10000 N (2248 lbf) load.
– A hardness number less than 145 HB and strength below 460 MPa (66.7 ksi).
NOTE: After the test, protect the tested area with the chemical oxidizer. Refer
to section 14 of the SPM 32-09-01.

Page 5006
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

b Detection of changes caused by heat, by the use of the eddy current procedure
(Ref. Fig. 5001)
– Measure the conductivity at three points, 120° apart.
– If the conductivity is more than 40 percent IACS, do a BRINELL hardness test,
specially at the suspect points. Use a 10 mm (0.39 in) dia. ball and a load of
1000 kg (2200 lbf). If the hardness number is less than 140 HB, reject the wheel
body (1-420) then examine the flange (1-120) (valve side) (Ref. SUBTASK
32-45-92-200-002-A01).
– Do subsequent checks, if you find an increase of 1 percent for the conductivity
value (in relation to the first value measured), do a hardness test. If the hardness
number is more than or equal to 140 HB, the main landing gear wheel assembly is
considered to be serviceable.

2 Inspection of the flange (1-120) (valve side)

If you reject the wheel body (1-420) (brake side), do the same tests for the flange (1-120)
(valve side). If the hardness number is less than 140 HB, discard the flange (1-120).

(e) Dimensional check

NOTE: Do the dimensional check only in case of overloaded wheel burst while rolling,
hard landing or tire deflation.

NOTE: Overhaul of both overloaded wheel and mating wheel assembly.

1 Check of buckling
a Put the wheel body (1-420) or the flange (1-120) in the horizontal position on a
surface table.
b Put the dial indicator feeler on a flat surface area of the inner face of the bead
seat.
c Measure the distance shown in detail A of the figure at some points on the inner
face of the bead seat.
d Buckling must not be more than 0,25 mm (0.0098 in).

2 Out-of-roundness inspection
a Measure the dimensions.
b Make sure that the values you have got do not change by more than 0,5 mm
(0.0197 in).

Page 5007
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Crack Detection and BRINELL Hardness Test Areas

FIGURE 5001/GRAPHIC32-45-92-991-002-A01

Page 5008
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-200-004-A01
(4) Bushes (1-380) and (1-400)

(a) Visual inspection

1 Make sure that the condition of the bushes (1-380) and (1-400) are satisfactory.
2 Make sure that there are no signs of distortion, peening, scratches and corrosion.
3 Make sure that the condition of cadmium plating is satisfactory and it does not
contain separation and flakes. If there is a defect, refer to the REPAIR 2 section.

SUBTASK 32-45-92-200-005-A01
(5) Bearing cups (1-390) and (1-410) and bearing cone (1-350) and (1-360)

(a) Visual inspection

1 Do a visual inspection of the bearing cups (1-390) and (1-410) and the bearing cones
(1-350) and (1-360). Refer to section 77 of the SPM 32-09-01. If there is a defect,
discard the defective bearing cup.
2 Make sure that there is no corrosion or damage (signs of impact, scores, scratches
or notches) in the housing of the bearing cups (1-390) and (1-410) and the bearing
cone (1-350) and (1-360). If there is a defect, refer to the REPAIR 2 section.

SUBTASK 32-45-92-200-006-A01
(6) Keys (1-270)

(a) Visual inspection

1 Make sure that the keys (1-270) are correctly attached and in a satisfactory condition.
2 Make sure that there are no signs of peening, distortion and scratches.
NOTE: For the keys (1-270A), an indentation surface of 5 x 5 mm2 (0.008 x
0.008 in2) maximum, and an indentation depth of 0,3 mm (0.012 in) are
permitted.
For the keys (1-270B), an indentation surface of 5 x 5 mm2 (0.008 x
0.008 in2) maximum, and an indentation depth of 0,8 mm (0.031 in) are
permitted.

(b) Magnetic particle inspection

1 Do a magnetic particle inspection to find any possible cracks. Refer to section 42 of

the SPM 32-09-01.
NOTE: You can replace this magnetic particle inspection by a visual inspection.
Use a magnifying glass of 10 X magnification. Keep the part illuminated for
this inspection.

2 If there is a defect, discard the defective key (1-270).

Page 5009
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-200-007-A01
(7) Bearing seals (1-320) and (1-340)

(a) Visual inspection

1 Make sure that there are no signs of nicks and gouges on the rubber lips.
2 If there is defect, discard the defective bearing seals (1-320) and (1-340).

SUBTASK 32-45-92-200-008-A01
(8) Heat shield assembly (1-280)

(a) Visual inspection

1 Make sure that the condition of the heat shield assembly (1-280) is satisfactory
and it does not contain damage, cracks and worn areas. Dents, scratches and
discoloration are permitted.
2 Make sure that there are no signs of cracks or tears. If there is a defect, discard the
heat shield assembly (1-280).
3 The bent heat shield assembly (1-280) can be cold straightened. Make sure that
there are no cracks after straightening.
4 Make sure that no studs (1-300) are missing or damaged. If there is a defect, replace
the studs (1-300).

SUBTASK 32-45-92-200-009-A01
(9) Ring assembly (1-080)

(a) Visual inspection

1 Make sure that the ring assembly (1-080) is in a satisfactory condition.
2 Make sure that it does not contain hit damage, deformation or metal removal.
3 If you find the defects, replace the ring assembly (1-080).

(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.

CAUTION: MAKE SURE THAT THERE ARE NO CRACKS OR INCIPIENT CRACKS

BECAUSE THEY ARE NOT PERMITTED.

1 Do a fluorescent penetrant inspection. Refer to section 38 of the SPM 32-09-01.

Page 5010
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

2 If there is a defect, discard the ring assembly (1-080).

Page 5011
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

Page 5012
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

REPAIR

TASK 32-45-92-300-801-A01
1. Repair - General

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: You can use alternatives for the listed items.

NOTE: Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND

CONSUMABLES for full details.

REFERENCE QTY NAME

Commercially available As required Magnifiers (for visual inspection)

(2) Consumables

(a) The table below gives the consumables necessary to do the maintenance 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 NAME
Commercially available Abrasive paper (#400 and #600 grit)
WD-40 or corrosion preventive compound as Corrosion preventive oil
per MIL-PRF-81309

(3) Referenced information

REFERENCE DESIGNATION
Standard Practices Manual (SPM) 32-09-01, Local repair of the surface finish on aluminum
section 14 alloys by chemical oxidizing with ALODINE
1200
Standard Practices Manual (SPM) 32-09-01, Corrosion removal from steel parts
section 21A

Page 6001
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

C. Job set-up
Not applicable.

D. Procedure

WARNING : MAKE SURE THAT YOU OBEY THE HEALTH AND SAFETY PRECAUTIONS
OF THE MANUFACTURERS OF THE MATERIALS.

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

SUBTASK 32-45-92-320-001-A01
(1) “Blend repair” procedure

CAUTION: DO NOT MAKE A SUDDEN CHANGE IN THE CONTOUR IN REPAIRED

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 changes the contour from the repaired surface
to the adjacent initial surfaces.

(b) A “blend repair” procedure removes a minimum quantity of metal and makes a smooth
surface (without tool marks or scratches).

(c) Use fine-grit abrasive paper (#600) to remove scratches that are made by initial blend
tools or large-grit abrasive paper.

SUBTASK 32-45-92-320-002-A01
(2) “50-to-1” blend repair procedure
(Ref. Fig. 6001)

CAUTION: DO NOT MAKE A SUDDEN CHANGE IN THE CONTOUR IN REPAIRED

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 “50-to-1” diameter for each blend repair is recommended for the flat areas where a
circular repair pattern is possible.

(b) A “50-to-1” blend repair is not possible for areas that are not flat. Calculate a “50-to-1”
diameter as follows:

1 Measure the depth “d” of the damaged surface. If the depth is more than the
permitted limit, discard the part.
2 Multiply “d” by 50 to get the recommended diameter “D” of the repaired surface.

Page 6002
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-320-003-A01
(3) Corrosion removal from aluminium alloy parts

CAUTION: DO NOT MAKE A SUDDEN CHANGE IN THE CONTOUR IN REPAIRED

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.

NOTE: This procedure is applicable whatever the level of corrosion you possibly find on
aluminium alloy parts.

(a) To remove signs of corrosion, brush or rub the part with large-grit abrasive paper (#400).
(b) Obey to the MINIMUM or MAXIMUM dimensions BEFORE PROTECTION (outside
diameter, inside diameter or thickness).
(c) Obey to the MINIMUM web thickness limits when you locally brush or rub the contour of
the part.
(d) Remove scratches that are made by large-grit abrasive paper (#400) with a “blend repair”
procedure. Refer to the procedure that follows: (Ref. SUBTASK 32-45-92-320-001-A01).
(e) Remove corrosion which stays after the above operation, by a chemical procedure, with
a corrosion remover. Refer to section 14 of the SPM 32-09-01.
(f) Make sure that the corrosion is not so large that decreases the strength of the part.
(g) Repair the protection of the part. Refer to the REPAIR 3 section.
NOTE: If you do not repair the protection of the part in less than 2 hours, apply a
temporary protection to it. Refer to the procedure that follows: (Ref. SUBTASK
32-45-92-350-001-A01).

SUBTASK 32-45-92-320-004-A01
(4) Corrosion removal from steel parts

NOTE: This procedure is applicable whatever the level of corrosion you possibly find
on steel parts.

(a) Brush the part to remove signs of corrosion.

(b) If there are still signs of corrosion, rub the part with large-grit abrasive paper (#400).
(c) Obey to the MINIMUM or MAXIMUM dimensions BEFORE PROTECTION (outside
diameter, inside diameter or thickness).
(d) Obey to the MINIMUM web thickness limits when you brush the contour of the part.
(e) Apply a corrosion preventive to the areas where you have removed the corrosion. Refer
to section 21A of the SPM 32-09-01.
(f) Repair the protection of the part. Refer to the REPAIR 3 section.
NOTE: If you do not repair the protection of the part in less than 2 hours, apply a
temporary protection to it. Refer to the procedure that follows: (Ref. SUBTASK
32-45-92-350-001-A01).
Page 6003
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-350-001-A01
(5) 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 cleaning product.
Refer to the CLEANING section.

SUBTASK 32-45-92-300-001-A01
(6) Symbols on figures
(Ref. Fig. 6002)

(a) Symbols are shown on some figures to show surface finishes, position tolerances,
position, etc.

Page 6004
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

“50-to-1” Blend Repair

FIGURE 6001/GRAPHIC32-45-92-991-003-A01
Page 6005
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Symbol Legend
FIGURE 6002/GRAPHIC32-45-92-991-004-A01

Page 6006
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

REPAIR 1

TASK 32-45-92-300-802-A01
1. Repair 1 - Repair of the Wheel Body (1-420) and the Flange (1-120)

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: You can use alternatives for the listed items.

NOTE: Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND

CONSUMABLES section for full details.

REFERENCE NAME
Pumice powder Abrasive material
Molykote G-Rapid Plus Paste Anti-galvanic corrosion product

(3) Referenced information

REFERENCE DESIGNATION
ILLUSTRATED PARTS LIST, Fig. IPL 01 Main Landing Gear Wheel Assembly
Standard Practices Manual (SPM) 32-09-01, Local repair of the surface finish on aluminum
section 14 alloys by chemical oxidizing with ALODINE
1200
Standard Practices Manual (SPM) 32-09-01, Glass bead peening of light alloy parts
section 17
Standard Practices Manual (SPM) 32-09-01, Detection of defects by Fluorescent Penetrant
section 38 Inspection (FPI)
Standard Practices Manual (SPM) 32-09-01, Detection of defects by eddy current inspection
section 41 (ET)
Standard Practices Manual (SPM) 32-09-01, Two-coat water reducible/low voc flexible
section 36C epoxy/polyurethane paint scheme

REPAIR No. 1
Page 6007
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

REFERENCE DESIGNATION
Standard Practices Manual (SPM) 32-09-01, General instructions for paint application
section 36E
Standard Practices Manual (SPM) 32-09-01, Ceramic shot peening of light alloy parts
section 69

C. Job set-up
Not applicable.

D. Procedure
(Ref. Fig. IPL 01)

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

SUBTASK 32-45-92-320-005-A01
(1) General repair of light signs of corrosion or impact damage
(Ref. Fig. 6003)
(Ref. Fig. 6004)
(Ref. Fig. 6005)
(a) To remove the signs of corrosion chemically, rub them with a swab soaked in a fluid paste
of corrosion remover mixed with a 50 percent solution in water of the abrasive material.
(b) Flush the component with water.
(c) Do a repair with a smooth file or by machining. Give a finish with an emery cloth or
aluminium oxide Al203 or abrasive paper (400 grit).
(d) The maximum depth of repair on all the surface of the main landing gear wheel assembly
is 0,3 mm (0.012 in), but you must keep the dimensions in the limits given on the figures.

SUBTASK 32-45-92-320-006-A01
(2) Removal of pitting from the wheel body (1-420) and the flange (1-120)
(Ref. Fig. 6004)
(Ref. Fig. 6009)
(a) If the depth of the pitting is less than 0,5 mm (0.02 in):
1 Polish the surfaces with abrasive paper (240 grit).
2 Repair the protection of the wheel body (1-420) and the flange (1-120). Refer to
section 14 of the SPM 32-09-01.

(b) If the depth of the pitting is between 0,5 and 0,8 mm (0.020 and 0.031 in)
1 You can do a local repair of 12,5 mm2 (0.019 in2) with a distance of 25 mm (0.98 in)
between the two repaired areas.
2 The repaired area must agree with the given scheme.
REPAIR No. 1
Page 6008
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

3 Calculate the diameter “D” of the repaired surface as follows:

a Measure the recommended depth “d” of the damaged surface.
b Multiply "d" by 50 to get the recommended diameter "D" of the repaired surface.

4 Repair the protection of the wheel body (1-420) and the flange (1-120). Refer to
section 14 of the SPM 32-09-01.

(c) If the depth of the pits is more than 0,8 mm (0.031 in), discard the part.

SUBTASK 32-45-92-320-010-A01
(3) Removal of damage from the inner hub of the wheel body (1-420)
(Ref. Fig. 6004)
(Ref. Fig. 6009)

(a) Make sure that the dimensions are as shown in the figure (Ref. Fig. 6004).

(b) Remove the damage from the wheel body (1-420).

(c) Polish the repaired surfaces manually to smooth transition with existing profile (to remove
the sharp edges).

(d) Do a fluorescent penetrant inspection or eddy current inspection on the repaired surfaces
of the wheel body (1-420). Refer to section 38 or 41 of the SPM 32-09-01.

NOTE: If there is a defect, discard the wheel body (1-420).

(e) Repair the protection of the wheel body (1-420). Refer to section 14 of the SPM 32-09-01.

REPAIR No. 1
Page 6009
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Repair of the Wheel Body (1-420) (Sheet 1 of 3)

FIGURE 6003/GRAPHIC32-45-92-991-005-A01
REPAIR No. 1
Page 6010
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Repair of the Wheel Body (1-420) (Sheet 2 of 3)

FIGURE 6003/GRAPHIC32-45-92-991-005-A01

REPAIR No. 1
Page 6011
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Repair of the Wheel Body (1-420) (Sheet 3 of 3)

FIGURE 6003/GRAPHIC32-45-92-991-005-A01

REPAIR No. 1
Page 6012
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Removal of Pitting from the Wheel Body (1-420) and the Flange (1-120) (Sheet 1 of 2)
FIGURE 6004/GRAPHIC32-45-92-991-006-A01

REPAIR No. 1
Page 6013
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Removal of Damage from the Inner Hub of the Wheel Body (1-420) (Sheet 2 of 2)
FIGURE 6004/GRAPHIC32-45-92-991-006-A01

REPAIR No. 1
Page 6014
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Repair of the Flange (1-120) (Sheet 1 of 2)

FIGURE 6005/GRAPHIC32-45-92-991-010-A01

REPAIR No. 1
Page 6015
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Repair of the Flange (1-120) (Sheet 2 of 2)

FIGURE 6005/GRAPHIC32-45-92-991-010-A01

REPAIR No. 1
Page 6016
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-320-007-A01
(4) Replacement of the thread insert (1-440)
(Ref. Fig. 6006)

(a) Remove the thread insert (1-440) and discard it.

(b) Apply a layer of anti-galvanic corrosion product on the wheel thread.

(c) Install the new thread insert (1-440).

REPAIR No. 1
Page 6017
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Replacement of the Thread Insert (1-440)

FIGURE 6006/GRAPHIC32-45-92-991-007-A01
REPAIR No. 1
Page 6018
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

REPAIR 2

TASK 32-45-92-300-803-A01
1. Repair 2 - Replacement of the Bushes (1-380) and (1-400)

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: You can use alternatives for the listed items.

NOTE: Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND

CONSUMABLES for full details.

REFERENCE QTY NAME

F27186000 1 Tool for extraction of the bearing cups (1-390)
and (1-410) and the bushes (1-380) and
(1-400)
F27185000 1 Tool for installation of the bearing cups (1-390)
and (1-410) and the bushes (1-380) and
(1-400)
Commercially available 1 Oven
Commercially available 1 Liquid nitrogen cooling unit

(2) Consumables

(a) The table below gives the consumables necessary to do the maintenance 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 NAME
Molykote G-Rapid Plus Paste Anti-galvanic corrosion product
White spirit or cleaning product as per Degreasing solvent
MIL-PRF-680 Type II or III

REPAIR No. 2
Page 6019
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

(3) Referenced information

REFERENCE DESIGNATION
ILLUSTRATED PARTS LIST, Fig. IPL 01 Main Landing Gear Wheel Assembly
Standard Practices Manual (SPM) 32-09-01, Local repair of the surface finish on aluminum
section 14 alloys by chemical oxidizing with ALODINE
1200
Standard Practices Manual (SPM) 32-09-01, Glass bead peening of light alloy parts
section 17
Standard Practices Manual (SPM) 32-09-01, Ceramic shot peening of light alloy parts
section 69
SUBTASK 32-45-92-350-001-A01 Temporary protection
SUBTASK 32-45-92-320-005-A01 General repair of light signs of corrosion or
impact damage

C. Job set-up
Not applicable.

D. Procedure
(Ref. Fig. IPL 01)
(Ref. Fig. 6007)
(Ref. Fig. 6008)

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

NOTE: Remove the bushes (1-380) and (1-400) or the bearing cups (1-390) and (1-410) only
if there is a defect (refer to the CHECK section).

NOTE: The bush and the bearing cup housing repair decreases the importance of the defects
to the permitted limits or remove them (corrosion removal or reaming of the wheel
body bores).

SUBTASK 32-45-92-010-010-A01
(1) Removal of the bushes (1-380) and (1-400) and of the bearing cups (1-390) and (1-410)

WARNING : BEFORE YOU CONTINUE WITH THE PROCEDURE, WEAR THERMAL

PROTECTIVE GLOVES AND EYE PROTECTION.

CAUTION: DO NOT INCREASE THE TEMPERATURE OF THE BUSHED WHEEL BODY

(1-370) TO MORE THAN 100 °C (212 °F). DO NOT KEEP THE BUSHED
WHEEL BODY (1-370) AT THIS TEMPERATURE FOR MORE THAN 30
MINUTES. A HIGHER TEMPERATURE OR A LONGER TIME CAN CAUSE
DAMAGE TO THE BUSHED WHEEL BODY (1-370).

(a) Increase the temperature of the bushed wheel body (1-370) in an oven to a maximum
temperature of 100 °C (212 °F).
REPAIR No. 2
Page 6020
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

(b) Remove the bushes (1-380) and (1-400) and the bearing cups (1-390) and (1-410)
with the tool F27186000.

(c) Decrease the temperature of the wheel body (1-420) to the ambient temperature.

(d) Clean the surface with degreasing solvent.

(e) If necessary, restore the protective treatment. Refer to the REPAIR 3 section.

SUBTASK 32-45-92-320-008-A01
(2) Repair of the bores of the wheel body (1-420)

(a) Remove the signs of corrosion. Refer to the REPAIR GENERAL section.

(b) Grind the surface to remove the deep scores with metal removal.

NOTE: Make sure that the depth of the corrosion is less than 0,3 mm (0.012 in).

SUBTASK 32-45-92-320-009-A01
(3) Installation of the bearing cups (1-390) and (1-410)

WARNING : BEFORE YOU CONTINUE WITH THE PROCEDURE, WEAR THERMAL

PROTECTIVE GLOVES AND EYE PROTECTION.

CAUTION: DO NOT INCREASE THE TEMPERATURE OF THE WHEEL BODY (1-420)

TO MORE THAN 100 °C (212 °F). DO NOT KEEP THE WHEEL BODY (1-420)
AT THIS TEMPERATURE FOR MORE THAN 30 MINUTES. A HIGHER
TEMPERATURE OR A LONGER TIME CAN CAUSE DAMAGE TO THE
WHEEL BODY (1-420).

(a) Increase the temperature of the wheel body (1-420) in an oven to a maximum
temperature of 100 °C (212 °F).

(b) Apply a layer of anti-galvanic corrosion product to the bores of the wheel body (1-420).

(c) Decrease the temperature of the bearing cups (1-390) and (1-410) in liquid nitrogen.

(d) Install the bearing cup (1-410) quickly into the wheel body (1-420) (brake side) with
the tool F27185000.

(e) Install the bearing cup (1-390) quickly into the wheel body (1-420) (valve side) with
the tool F27185000.

(f) Hold the bearing cups (1-390) and (1-410) for 1 minute in its housing.

(g) Make sure that the interference fit between the wheel body (1-420) and the bearing cup
(1-390) is less than 0,02 mm (0.00078 in).

REPAIR No. 2
Page 6021
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-410-001-A01
(4) Installation of the bushes (1-380) and (1-400)

WARNING : BEFORE YOU CONTINUE WITH THE PROCEDURE, PUT ON THERMAL

PROTECTIVE GLOVES AND EYE PROTECTION.

CAUTION: DO NOT INCREASE THE TEMPERATURE OF THE WHEEL BODY (1-420)

TO MORE THAN 100 °C (212 °F). DO NOT KEEP THE WHEEL BODY (1-420)
AT THIS TEMPERATURE FOR MORE THAN 30 MINUTES. A HIGHER
TEMPERATURE OR A LONGER TIME CAN CAUSE DAMAGE TO THE
WHEEL BODY (1-420).

(a) Increase the temperature of the wheel body (1-420) in an oven to a maximum
temperature of 100 °C (212 °F).

(b) Apply a film of anti-galvanic corrosion product to the bores of the wheel body (1-420)
after you remove it from the oven.

(c) Decrease the temperature of the bushes (1-380) and (1-400) in liquid nitrogen.

(d) Install the outer bush (1-380) rapidly into the wheel body (1-420) (valve side) with the
tool F27185000.

(e) Install the inner bush (1-400) rapidly into the wheel body (1-420) (valve side) with the
tool F27185000.

REPAIR No. 2
Page 6022
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Repair of the Bearing Cups (1-390) and (1-410) and the Bush Housing (brake side) (Sheet 1 of 2)
FIGURE 6007/GRAPHIC32-45-92-991-008-A01
REPAIR No. 2
Page 6023
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Repair of the Bearing Cups (1-390) and (1-410) and the Bush Housing (brake side) (Sheet 2 of 2)
FIGURE 6007/GRAPHIC32-45-92-991-008-A01

REPAIR No. 2
Page 6024
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Repair of the Bearing Cups (1-390) and (1-410) and the Bush Housing (valve side) (Sheet 1 of 2)
FIGURE 6008/GRAPHIC32-45-92-991-009-A01

REPAIR No. 2
Page 6025
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Repair of the Bearing Cups (1-390) and (1-410) and the Bush Housing (valve side) (Sheet 2 of 2)
FIGURE 6008/GRAPHIC32-45-92-991-009-A01

REPAIR No. 2
Page 6026
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

REPAIR 3

TASK 32-45-92-300-804-A01
1. Repair 3 - 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
ILLUSTRATED PARTS LIST, Fig. IPL 01 Main Landing Gear Wheel Assembly
Standard Practices Manual (SPM) 32-09-01, Stylus cadmium plating process (Dalic
section 15 Galvanoplasty or Sifco LHE process)
Standard Practices Manual (SPM) 32-09-01, Two-coat water reducible/low VOC flexible
section 36C epoxy/polyurethane paint scheme
Standard Practices Manual (SPM) 32-09-01, General instructions for paint application
section 36E

C. Job set-up
Not applicable.

REPAIR No. 3
Page 6027
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

D. Procedure
(Ref. Fig. IPL 01)

WARNING : MAKE SURE THAT YOU OBEY ALL THE HEALTH AND SAFETY
PRECAUTIONS OF THE MANUFACTURERS OF MATERIALS.

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

SUBTASK 32-45-92-380-001-A01
(1) Protection of the bushes (1-380) and (1-400)

(a) Apply cadmium plating on the surfaces of the bush (1-380) or (1-400). Refer to section
15 of the SPM 32-09-01.

(b) For the parts refer the instructions.

(c) Apply the full paint scheme as shown in figure. Refer to sections 36C and 36E of the
SPM 32-09-01.

NOTE: It is mandatory to paint all the stripped surfaces of the main landing gear wheel
assembly. The contact of carbon dust with an unprotected area accelerates
corrosion development.

REPAIR No. 3
Page 6028
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Protective treatment of the Wheel Body (1-420) and the Flange (1-120) (Sheet 1 of 3)
FIGURE 6009/GRAPHIC32-45-92-991-011-A01
REPAIR No. 3
Page 6029
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Protective treatment of the Wheel Body (1-420) and the Flange (1-120) (Sheet 2 of 3)
FIGURE 6009/GRAPHIC32-45-92-991-011-A01

REPAIR No. 3
Page 6030
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Protective treatment of the Wheel Body (1-420) and the Flange (1-120) (Sheet 3 of 3)
FIGURE 6009/GRAPHIC32-45-92-991-011-A01

REPAIR No. 3
Page 6031
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

REPAIR No. 3
Page 6032
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

ASSEMBLY

TASK 32-45-92-400-801-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: You can use alternatives for the listed items.

NOTE: Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND

CONSUMABLES for full details.

REFERENCE QTY NAME

J47834 1 Calker
Commercially available 1 Dry compressed air source with a pressure
reducing valve
Commercially available 1 Inflation cage
Commercially available 1 Retaining ring pliers
Commercially available 1 Source of dry nitrogen
89901 1 Spatula
Commercially available 1 Oven

(2) Consumables
(a) The table below gives the consumables necessary to assemble the component.
NOTE: You can use alternatives for the listed items.

NOTE: Refer to the SPECIAL TOOLS, FIXTURES, EQUIPMENT AND

CONSUMABLES for full details.

REFERENCE NAME
Commercially available Clean and soft lint-free cloth
Commercially available Dry nitrogen (99.5 % pure as per MIL-P-27401
Type 1 Grade A)
MOBIL AVIATION GREASE SHC100 Bearing grease
Bearing grease as per MIL-PRF-81322 Bearing grease

Page 7001
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

REFERENCE NAME
Silicone grease as per SAE-AMS-G-4343 or Silicone grease
SAE-AS8660
Molykote G-Rapid Plus Paste Anti-galvanic corrosion product
Anti-seize compound as per SAE-AMS-2518 Anti-seize compound
or MIL-T-5544

(3) Referenced information

REFERENCE DESIGNATION
AIRCRAFT MAINTENANCE MANUAL (AMM) Applicable tire inflation procedure for the
aircraft
ILLUSTRATED PARTS LIST, Fig. IPL 01 Main Landing Gear Wheel Assembly
Standard Practices Manual (SPM) 32-09-01, Application of rubber sealants PR1422NA,
section 24 PR340 and PR1826
Standard Practices Manual (SPM) 32-09-01, Marking of parts and assemblies
section 59
Standard Practices Manual (SPM) 32-09-01, Wheel bearing
section 77
SUBTASK 32-45-92-790-001-A01 Leakage test of the pressure relief valve
(1-200) and the fuse plugs (1-220)
SUBTASK 32-45-92-790-002-A01 Inflation test

C. Job set-up
SUBTASK 32-45-92-400-001-A01
(1) First steps

(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.

(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.

1 Before 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.
2 Installation of a preformed packing:
– Apply lubricant product to the preformed packing.
Page 7002
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

– Use the tool 89901 to install the preformed packing.

3 After the installation of a preformed packing, rub the preformed packing with the hand
to make the stress equal around the full preformed packing.

SUBTASK 32-45-92-640-001-A01
(2) Lubrication of the bearing cones (1-350) and (1-360)

CAUTION: DO THE LUBRICATION OF THE BEARING CONES (1-350) AND (1-360)

IMMEDIATELY AFTER THE CLEANING.

(a) Lubricate the bearing cones (1-350) and (1-360). Refer to section 77 of the SPM
32-09-01.

D. Procedure
(Ref. Fig. IPL 01)

WARNING : DO NOT GET CADMIUM IN YOUR MOUTH, CADMIUM THAT IS SWALLOWED

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: MAKE SURE THAT ALL THE PARTS ARE CLEAN BEFORE 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 32-45-92-410-002-A01
(1) Installation of the fuse plugs (1-220)
(Ref. Fig. 7001)

NOTE: You must do a leakage test of the fuse plugs (1-220) before installation on the
wheel body (1-420) (Ref. SUBTASK 32-45-92-790-001-A01).

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

(b) Install the preformed packings (1-250) on the new fuse plugs (1-220) with the tool 89901.

(c) Install the fuse plugs (1-220) on the wheel body (1-420).

(d) Torque the fuse plugs (1-220) to a load of 9,5 N.m (84.08 lbf.in).

Page 7003
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-410-003-A01
(2) Installation of the heat shield assembly (1-280)

(a) Install the studs (1-300) to the heat shield (1-290).

(b) Install the heat shield assembly (1-280) to the bushed wheel body (1-370).

SUBTASK 32-45-92-410-004-A01
(3) Installation of the keys (1-270)
(Ref. Fig. 7001)

(a) Apply a layer of anti-galvanic corrosion product to the wheel body (1-420) and to the
thread of the bolts (1-260).

(b) Install the key (1-270) by the temperature differential procedure.

(c) Increase the temperature of the key (1-270) in an oven to 150 °C (302 °F).

(d) Install the bolts (1-260) in the key (1-270).

(e) Torque the bolts (1-260) to a load of 4,0 N.m (35.4 lbf.in).

(f) Put the material into the key slot with the tool J47834 to lock the bolts (1-260).

SUBTASK 32-45-92-410-005-A01
(4) Installation of the bearing cones (1-360) and (1-350)
(Ref. Fig. 7001)

(a) Installation of the bearing cones (1-360)

1 Install the bearing cone (1-360) in its position.

2 Install the bearing seal (1-340).
3 Install the retaining ring (1-330).
4 Remove unwanted bearing grease after the installation.

(b) Installation of the bearing cones (1-350)

1 Install the bearing cone (1-350) in its position.

2 Install the bearing seal (1-320).
3 Install the retaining ring (1-310).
4 Remove unwanted bearing grease after the installation.

Page 7004
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-410-006-A01
(5) Installation of the storage protector

(a) Carefully apply a moderate quantity of anti-seize compound to the threads of the screws
(1-020).

(b) Install the storage protector in place and fasten it with the screws (1-020) and the
washers (1-030).

(c) Torque the screws (1-020) to a load of 4,0 N.m (35.4 lbf.in).

(d) Safety the screws (1-020) with the lockwire (1-010).

SUBTASK 32-45-92-410-007-A01
(6) Installation of the pressure relief valve (1-200)
(Ref. Fig. 7001)

(a) Install the preformed packing (1-210) to the pressure relief valve (1-200) with the tool
89901.

(b) Carefully apply a small quantity of silicone grease to the preformed packing (1-210).

(c) Install the pressure relief valve (1-200) on the wheel body (1-420).

(d) Torque the pressure relief valve (1-200) to a load of 9,5 N.m (84.08 lbf.in).

SUBTASK 32-45-92-410-008-A01
(7) Installation of the valve assembly (1-150) on the wheel body (1-420)
(Ref. Fig. 7001)

(a) Install the preformed packing (1-190) to the valve body (1-180) with the tool 89901.

(b) Carefully apply a small quantity of silicone grease to the preformed packing (1-190).

(c) Install the valve body (1-180).

(d) Torque the valve body (1-180) to a load of 9,5 N.m (84.08 lbf.in).

(e) Install the valve core (1-170).

(f) Torque the valve core (1-170) to a load of 0,27 N.m (2.39 lbf.in).

NOTE: Make sure that the clearance between the valve core (1-170) and the valve
body (1-180) is between 0 and 1,5 mm (0 and 0.06 in) after installation.

(g) Install the valve cap (1-160) and tighten it moderately by hand.

Page 7005
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SUBTASK 32-45-92-440-001-A01
(8) Assembly of the main landing gear wheel assembly
(Ref. Fig. 7001)

CAUTION: FULLY CLEAN AND THEN DRY THE TIRE BEADS. YOU MUST NOT USE
GREASE OR WATER TO MAKE THE INSTALLATION EASY.

CAUTION: USE OF OTHER ANTI-SEIZE COMPOUNDS OR A MIXTURE OF ANTI-SEIZE

COMPOUND AND A SOLVENT, LUBRICANT, OR OTHER COMPOUNDS
CAN CAUSE AN INCORRECT PRE-LOAD OF THE BOLTS.

NOTE: The operations about the assembly of the complete wheel with its tire are given for
information only.

(a) Lubricate the parts as shown in the figure (Ref. Fig. 7001).
(b) Carefully apply a small quantity of silicone grease to the preformed packing (1-110).
(c) Install the preformed packing (1-110) in the groove on the complete wheel body (1-130)
with the tool 89901.
NOTE: Make sure that the preformed packing (1-110) is not twisted.

(d) Install the tire on the complete wheel body (1-130).

(e) Apply a layer of anti-galvanic corrosion product to the flange (1-120).
(f) Install the flange (1-120) in its position on the assembly of the complete wheel body
(1-130) and the tire.
NOTE: Make sure that you set the light point (red triangle) of the tire to the residual
unbalance of the main landing gear wheel assembly.

(g) Make sure that the preformed packing (1-110) and the two parts of the main landing
gear wheel assembly are correctly aligned.
NOTE: Since the imbalance is not marked, the relative positions of the two half-wheels
are not important.

(h) Compress the complete wheel body (1-130) and the flange (1-120) one against the other.
(i) Apply a layer of anti-galvanic corrosion product to the ring assembly (1-080).
(j) Install the ring assembly (1-080).
NOTE: Align the slit of the snap ring to opposite of the letter "-B-" mark on the complete
wheel body (1-130).

(k) Install the lock plate (1-070).

(l) Apply a layer of anti-seize compound to the threads of the screws (1-060).
(m) Install the screws (1-060) in the lock plate (1-070).
(n) Torque the screws (1-060) to a load of 1,25 N.m (11.06 lbf.in).
(o) Safety the screws (1-060) with the lockwire (1-035).
(p) Remove the valve cap (1-160).
Page 7006
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

(q) Remove the valve core (1-170) of the valve assembly (1-150).

(r) Install the tire on its wheel bead seats. To do this, quickly inflate the tire to the nominal
pressure (refer to the instructions given in the Aircraft Maintenance Manual (AMM)).

(s) Deflate the tire fully.

(t) Install the valve core (1-170) in the valve assembly (1-150).

(u) Torque the valve core (1-170) to a load of 0,27 N.m (2.39 lbf.in).

(v) Install the valve cap (1-160) on the valve assembly (1-150).

SUBTASK 32-45-92-410-009-A01
(9) Installation of the identification and amendment plate (1-460)

(a) All the existing markings shown on old plates must be transferred to the new identification
and amendment plate (1-460).

NOTE: If necessary, update the identification and amendment plate (1-460) with the
changes you included during the reconditioning of the component.

1 After accomplishment of SB C20545-32-029:

– Replace the main landing gear wheel assembly part number “C20545000” with
“C20545000 AMDT A”. Refer to process No. 1 in section 59 of the SPM 32-09-01.
2 After accomplishment of SB C20545-32-039:
– Replace the main landing gear wheel assembly part number “C20545000” with
“C20545100”. Refer to process No. 1 in section 59 of the SPM 32-09-01.
– Replace the main landing gear wheel assembly part number “C20545000 Amdt A” with
“C20545100 Amdt A”. Refer to process No. 1 in section 59 of the SPM 32-09-01.

(b) Install the identification and amendment plate (1-460) in their positions. Refer to section
59 of the SPM 32-09-01.

SUBTASK 32-45-92-400-002-A01
(10) Last steps

(a) Do an inflation test (Ref. SUBTASK 32-45-92-790-002-A01).

(b) Make sure that the parts are safetied.

(c) Remove grease from the components. Apply thick rubber sealant to the joint between
the wheel body (1-420) and the pressure relief valve (1-200) and the preformed packing
(1-210). Refer to section 24 of the SPM 32-09-01.

Page 7007
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Lubrication of the Main Landing Gear Wheel Assembly

FIGURE 7001/GRAPHIC32-45-92-991-012-A01

Page 7008
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

FITS AND CLEARANCES

TASK 32-45-92-820-801-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 fits may be changed if field experience permits it.

B. Layout
(1) First column:

Gives the location on the figure(s) of the clearance, fit, or dimension that you must measure.

(2) Second column:

Gives the figure 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 fit (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)
Page 8001
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

MFR LIMITS IN-SERVICE WEAR LIMITS

IPL
ALLOWABLE
FIG ASSEMBLY DIMENSIONS
FIG DIMENSIONS CLEARANCE
AND CLEARANCE LIMITS millimeters
REF millimeters (inches) millimeters
ITEM millimeters (inches) (inches)
(inches)
NO
MIN MAX MIN MAX MIN MAX MAX
ID 87,1170 87,1370
(1-420) (3.4298) (3.4306) S S
1 0,1750 0,2200
OD 87,3120 87,3370 (0.0069) (0.0087)
(1-390) (3.4375) (3.4385)
ID 94,2475 94,2675
(1-420) (3.7105) (3.7113) S S
2 0,1905 0,2355
OD 94,4580 94,4830 (0.0075) (0.0093)
(1-410) (3.7188) (3.7198)
ID 337,9110 338,0000
(1-420) (13.3035) (13.3071) J J
3 0,3000 0,4780
OD 338,3000 338,3890 (0.0118) (0.0188)
(1-110) (13.3189) (13.3224)
ID 90,0800 90,1200
(1-420) (3.5464) (3.5480) S S
4 0,0850 0,1550
OD 90,2050 90,2350 (0.0033) (0.0061)
(1-380) (3.5514) (3.5525)
ID 97,0800 97,1200
(1-420) (3.8220) (3.8236) S S
5 0,1900 0,2360
OD 97,3050 97,3350 (0.0075) (0.0093)
(1-400) (3.8309) (3.8321)
ID 15,0900 15,1100
(1-270) (0.5941) (0.5949) J J
6 0,0780 0,1160
OD 14,9940 15,0120 (0.0031) (0.0046)
(1-420) (0.5903) (0.5910)

Page 8002
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Location of Fits
FIGURE 8001/GRAPHIC32-45-92-991-013-A01

Page 8003
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TASK 32-45-92-820-802-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
NAME TORQUE VALUE PRODUCT REQUIRED
NO.
(1-020) Screw 4,0 N.m (35.4 lbf.in) Anti-seize compound
(1-060) Screw 1,25 N.m (11.06 lbf.in) Anti-seize compound
(1-160) Valve cap 3,5 N.m (31.0 lbf.in) Not applicable
(1-170) Valve core 0,27 N.m (2.39 lbf.in) Not applicable
(1-180) Valve body 9,5 N.m (84.08 lbf.in) Not applicable
(1-200) Pressure relief valve 9,5 N.m (84.08 lbf.in) Not applicable
(1-220) Fuse plug 9,5 N.m (84.08 lbf.in) Not applicable
(1-260) Bolt 4,0 N.m (35.4 lbf.in) Not applicable

NOTE: 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.

Page 8004
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

SPECIAL TOOLS, FIXTURES, EQUIPMENT AND CONSUMABLES

TASK 32-45-92-940-801-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 fixtures listed
below. You can use alternatives for the listed items.

(1) Special tools and fixtures are available from Messier-Services (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 Vélizy-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
A36733 Tool for checking the width of the keys (1) 5000
(1-270)
Not applicable Binocular microscope (2) 5000
F27185000 Tool for installation of the bearing cups (1) 6000
(1-390) and (1-410) and the bushes
(1-380) and (1-400)
F27186000 Tool for extraction of the bearing cups (1) 6000
(1-390) and (1-410) and the bushes
(1-380) and (1-400)
F27190000 Tool for the leakage test of the pressure (1) 1000
relief valve (1-200) and the fuse plugs
(1-220)

Page 9001
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

PART NUMBER DESIGNATION USE CODE PAGE BLOCK WHERE

USED
J47834 Calker (1) 7000
89901 Spatula (1) 1000, 3000 and 7000

Page 9002
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

TASK 32-45-92-940-802-A01
2. Consumables

REFERENCE DESIGNATION AND SUPPLIERS CODE OR NAME PAGE BLOCK

SPECIFICATION AND ADDRESS WHERE USED
Silicone grease as per Silicone grease Commercially available 1000 and 7000
SAE-AMS-G-4343 or
SAE-AS8660
White spirit or cleaning Degreasing solvent Commercially available 4000 and 6000
product as per
MIL-PRF-680 Type II
or III
WD-40 or corrosion Corrosion preventive WD-40 Company 4000 and 6000
preventive compound oil 1061 Cudahy Place
as per MIL-PRF-81309 San Diego
California 92110-3998
U.S.A.
Pumice powder Abrasive material Abrasif Mercier 6000
40, Rue Jean Jacques
Rousseau
94200 Ivry/Seine
France
Molykote G-Rapid Plus Anti-galvanic Dow Corning Europe 6000 and 7000
Paste corrosion product Zoning Industriel
Zone C
7180 Seneffe
Belgium
Bearing grease as per Bearing grease Commercially available 4000 and 7000
MIL-PRF-81322
MOBIL AVIATION Bearing grease Mobil Petroleum GMBH 4000 and 7000
GREASE SHC100 Kapstadtring 2
22297 Hamburg
Deutschland
Anti-seize compound as Anti-seize compound Commercially available 7000
per SAE-AMS-2518 or
MIL-T-5544

Page 9003
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

Page 9004
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

STORAGE AND TRANSPORTATION

TASK 32-45-92-550-801-A01
1. Storage Instructions

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
Standard Practices Manual (SPM) 32-09-01, Storage
section 72

C. Job set-up
Not applicable.

D. Procedure
SUBTASK 32-45-92-550-001-A01
(1) Storage

(a) Refer to section 72 of the SPM 32-09-01.

Page 15001
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

Page 15002
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

ILLUSTRATED PARTS LIST

TASK 32-45-92-871-802-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 find the location of each part on 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 figure, 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 modifications included.
4 Usually, variant letters are not shown in the figures.
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 identification 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.

Page 10001
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

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 primary
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 refers 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 modified parts, a new figure (called “figure variant”) is then added.
(b) This figure variant will have the same number as that of the basic figure, 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, first, 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”.

Page 10002
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

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.

Page 10003
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

E. Words and Abbreviations used

(1) The most frequently used words and abbreviations are:

Abbreviation 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

Page 10004
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

VENDOR’S CODE LIST

VENDOR CODE NAME AND ADDRESS

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

VF1958 LIEBHERR AEROSPACE TOULOUSE SAS

408 AVENUE DES ETATS UNIS
31016 TOULOUSE
FRANCE

VF6137 MESSIER-BUGATTI-DOWTY
INOVEL PARC SUD BP 40
78140 VELIZY-VILLACOUBLAY
FRANCE

Page 10005
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

Page 10006
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

REFERENCE ALPHANUMERICAL INDEX

Part Number Airline Figure Item Total

Part Number Number Required
Number

A32090 01 180A 1

A33580 01 240A 3

A34927 01 300A 18

A34976 01 070A 1

A34997 01 260A 9

A36076 01 420A 1

A36076-1 01 450A 1

A36077 01 120A 1

A36085 01 400A 1

A36088 01 270A 9

A36088-1 01 270B 9

A36091 01 340A 1

A36092 01 320A 1

A36093 01 330A 1

A36094 01 310A 1

A36115 01 380A 1

A36126 01 290A 1

A36212 01 080A 1

A36212-1 01 100A 1

A36238 01 230A 1

A37015 01 230B 1

BT337-1 01 110A 1

C20545000 01 001A RF

NI/ALPH
Page 10007
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Part Number Airline Figure Item Total

Part Number Number Required
Number

C20545100 01 001B RF

D92505-3 01 460A 1

D92505-3 *** DELETED 01 140A -

GA31659 01 130A 1

GA31659-1 01 130B 1

GA31659-2 01 130C 1

GA31661 01 370A 1

GA31667 01 200A 1

GA31680 01 280A 1

GA31726 01 040A 1

GA31749 01 220A 3

GA32136 01 220B 3

L507910-2-629 01 390B 1

L507910-20629 01 390C 1

L507910-2X629 01 390A 1

L507949-2-629 01 350B 1

L507949-20629 01 350C 1

L507949-2X629 01 350A 1

L610510-2-629 01 410B 1

L610510-20629 01 410C 1

L610510-2X629 01 410A 1

L610549-2-629 01 360B 1

L610549-20629 01 360C 1

L610549-2X629 01 360A 1

NI/ALPH
Page 10008
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Part Number Airline Figure Item Total

Part Number Number Required
Number

M83461-1-010 01 190A 1
210A 1
250A 3

MS20995C32 01 010B AR
035B AR

NAS1149F0332P 01 030A 3

NAS1352C06H4 01 060A 2

NAS1352C3H6 01 020A 3

NAS1611-012A 01 205A 2

PR28148-9 01 150A 1

01300050005 01 440A 9

01300676008 01 090A 2

01300696008 01 430A 3

23320CA080 01 010A AR
035A AR

23320CA080 *** DELETED 01 050A -

29230-06 01 170A 1

41300050005 01 440B 9

41300676008 01 090B 2

41300696008 01 430B 3

831-63-901A 01 160A 1

NI/ALPH
Page 10009
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

NI/ALPH
Page 10010
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

DETAILED PARTS LIST

Page 10011
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

Main Landing Gear Wheel Assembly

FIGURE 01/GRAPHIC32-45-92-950-901-A01

Page 10012
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE EFFECT UNITS

STOCK 1234567 CODE PER
NUMBER ASSY

01
–001A C20545000 WHEEL ASSEMBLY, MAIN LANDING RF
GEAR
(NP)
P/N AMDT A
POST SB C20545-32-029
–001B C20545100 WHEEL ASSEMBLY, MAIN LANDING RF
GEAR
P/N AMDT A
POST SB C20545-32-039
010A 23320CA080 . LOCKWIRE AR
010B MS20995C32 . LOCKWIRE AR
POST SL F6137-32-3355
020A NAS1352C3H6 . SCREW 3
030A NAS1149F0332P . WASHER 3
035A 23320CA080 . LOCKWIRE AR
035B MS20995C32 . LOCKWIRE AR
POST SL F6137-32-3355
–040A GA31726 . RING ASSEMBLY, SNAP 1
–050A 23320CA080 . . DELETED
060A NAS1352C06H4 . . SCREW 2
070A A34976 . . PLATE, LOCK 1
080A A36212 . . RING ASSEMBLY 1
–090A 01300676008 . . . INSERT, THREAD (VF1699) 2
–090B 41300676008 . . . INSERT, THREAD (VF1699) 2
–100A A36212-1 . . . RING, SNAP (NP) 1
110A BT337-1 . PACKING, PREFORMED 1
120A A36077 . FLANGE 1
–130A GA31659 . BODY, COMPLETE WHEEL (NP) 1A 1
–130B GA31659-1 . BODY, COMPLETE WHEEL (NP) 1A 1
POST SB C20545-32-029
–130C GA31659-2 . BODY, COMPLETE WHEEL (NP) 1B 1
POST SB C20545-32-039
–140A D92505-3 . . DELETED
150A PR28148-9 . . VALVE ASSEMBLY 1
–160A 831-63-901A . . . CAP, VALVE (VF1958) 1
–170A 29230-06 . . . CORE, VALVE (VF0826) 1
–180A A32090 . . . BODY, VALVE (NP) 1

– ITEM NOT ILLUSTRATED

Page 10013
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE EFFECT UNITS

STOCK 1234567 CODE PER
NUMBER ASSY

01
190A M83461-1-010 . . PACKING, PREFORMED 1
200A GA31667 . . VALVE, PRESSURE RELIEF 1
(NP)
205A NAS1611-012A . . . PACKING, PREFORMED 2
210A M83461-1-010 . . PACKING, PREFORMED 1
220A GA31749 . . PLUG, FUSE 130AB 3
220B GA32136 . . PLUG, FUSE 130C 3
POST SB C20545-32-039
–230A A36238 . . . FUSIBLE (NP) 220A 1
–230B A37015 . . . FUSIBLE (NP) 220B 1
POST SB C20545-32-039
–240A A33580 . . . PLUG (NP) 1
250A M83461-1-010 . . PACKING, PREFORMED 3
260A A34997 . . BOLT 9
270A A36088 . . KEY (NP) 130A 9
270B A36088-1 . . KEY 130BC 9
POST SB C20545-32-029
–280A GA31680 . . SHIELD ASSEMBLY, HEAT 1
290A A36126 . . . SHIELD, HEAT (NP) 1
300A A34927 . . . STUD 18
310A A36094 . . RING, RETAINING 1
320A A36092 . . SEAL, BEARING 1
330A A36093 . . RING, RETAINING 1
340A A36091 . . SEAL, BEARING 1
350A L507949-2X629 . . CONE, BEARING (NP) 1
350B L507949-2-629 . . CONE, BEARING (NP) 1
350C L507949-20629 . . CONE, BEARING (VF0704) 1
POST SL F6137-32-044
360A L610549-2X629 . . CONE, BEARING (NP) 1
360B L610549-2-629 . . CONE, BEARING (NP) 1
360C L610549-20629 . . CONE, BEARING (VF0704) 1
POST SL F6137-32-044
–370A GA31661 . . BODY, BUSHED WHEEL 1
380A A36115 . . . BUSH, OUTER 1
390A L507910-2X629 . . . CUP, BEARING (NP) 1
390B L507910-2-629 . . . CUP, BEARING (NP) 1
390C L507910-20629 . . . CUP, BEARING (VF0704) 1
POST SL F6137-32-044
– ITEM NOT ILLUSTRATED
Page 10014
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE EFFECT UNITS

STOCK 1234567 CODE PER
NUMBER ASSY

01
400A A36085 . . . BUSH, INNER 1
410A L610510-2X629 . . . CUP, BEARING (NP) 1
410B L610510-2-629 . . . CUP, BEARING (NP) 1
410C L610510-20629 . . . CUP, BEARING (VF0704) 1
POST SL F6137-32-044
420A A36076 . . . BODY, WHEEL (NP) 1
–430A 01300696008 . . . . INSERT, THREAD (NP) 3
–430B 41300696008 . . . . INSERT, THREAD (VF1699) 3
–440A 01300050005 . . . . INSERT, THREAD (NP) 9
–440B 41300050005 . . . . INSERT, THREAD (VF1699) 9
–450A A36076-1 . . . . BODY, WHEEL (NP) 1
460A D92505-3 . . . PLATE, IDENTIFICATION AND 1
AMENDMENT

– ITEM NOT ILLUSTRATED

Page 10015
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13
 COMPONENT MAINTENANCE MANUAL
C20545 Series

This page intentionally left blank.

Page 10016
32-45-92
The document is subject to the controls and restrictions on the first page.
Nov 08/13