DMC:V2500-A0-72-32-7200-01A-920A-C|Issue No:004|Issue Date:2020-11-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 72-32-72-300-005 LPC Bleed Valve Ring - Replace The Bush, Repair-005 (VRS1752)

Effectivity

FIG/ITEM	PART NO.
02-100	5A1450	Assembly A
02-100	5A1686	Assembly A
02-100	5A1872	Assembly A
02-100	5A2225	Assembly B

Material of component

PART IDENT	SYMBOL	MATERIAL
Valve ring assembly		Aluminum alloy

General

Price and availability - none

The practices and processes referred to in the procedure by the TASK number are in the SPM.

NOTE

To identify the consumable materials, refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

Name	Manufacturer	Part Number / Identification	Quantity
Drilling machine	LOCAL	Drilling machine
Standard Workshop Equipment	LOCAL	Standard Workshop Equipment
Vibrating Marking Pencil	LOCAL	Vibrating Marking Pencil
Horizontal Boring Mill	LOCAL	Horizontal Boring Mill
IAE 3J12822 Staking punch	0AM53	IAE 3J12822	1
IAE 3J12823 Staking fixture	0AM53	IAE 3J12823	1

Consumables, Materials and Expendables

Name	Manufacturer	Part Number / Identification
CoMat 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUM	00BB6	CoMat 01-275
CoMat 02-099 LINT-FREE CLOTH	X222X	CoMat 02-099
CoMat 03-026 LIQUID NITROGEN	LOCAL	CoMat 03-026
CoMat 05-019 WATERPROOF SILICON CARBIDE	1E1X8	CoMat 05-019
CoMat 05-020 WATERPROOF SILICON CARBIDE	1E1X8	CoMat 05-020
CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)	X222X	CoMat 06-063
CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)	X222X	CoMat 06-064

Spares

Name	Manufacturer	Part Number / Identification	Quantity	Remark
BUSHING	0AM53	5A0469	A/R	Assembly A
BUSHING	0AM53	5A0470	A/R	Assembly A
BUSHING	0AM53	5A1843	A/R	Assembly A (oversized for 02-125)
BUSHING	0AM53	5A1844	A/R	Assembly A (oversized for 02-125)
BUSHING	0AM53	5A1952	A/R	Assembly A (oversized for 02-123)
BUSHING	0AM53	5A1953	A/R	Assembly A (oversized for 02-123)
BUSHING	0AM53	5A2227	A/R	Assembly B
BUSH	0AM53	5A2228	A/R	Assembly B
BUSH	0AM53	5A2231	A/R	Assembly B (oversized for 02-123)
BUSH	0AM53	5A2232	A/R	Assembly B (oversized for 02-123)
BUSH	0AM53	5A2233	A/R	Assembly B (oversized for 02-125)
BUSH	0AM53	5A2234	A/R	Assembly B (oversized for 02-125)

Safety Requirements

NONE

Procedure

1. Refer to Figure, Figure, Figure, Figure, Figure, Figure and Figure.
2. Examine and identify the damaged bush.
3. Measure the bush hole(s) and select drill size.
4. 1. Use Drilling machine and Horizontal Boring Mill.
    Drill through the bush.
    Use drill 0.354 in. (9.0 mm) for bush (02-123).
    Use drill 0.433 in. (11.0 mm) for bush (02-125).
    Use drill 0.452 in. (11.5 mm) for bush (02-127).
    Use drill 0.472 in. (12.0 mm) for bush (02-129).
    Use drill 0.393 in. (10.0 mm) for bush (02-118).
    Use drill 0.452 in. (11.5 mm) for bush (02-120).
    Drive out the bush with a small hammer and punch.
    Care must be taken to make sure that the flange bore or face do not become damaged.
5. 1. Use CoMat 05-019 WATERPROOF SILICON CARBIDE or CoMat 05-020 WATERPROOF SILICON CARBIDE.
6. Clean the bush hole with a soft clean cloth and blast with air.
1. Refer to Figure, Figure, Figure, Figure, Figure, Figure and Figure.
2. 1. Make sure the diameter is in limit given in the figure.
1. NOTE
  If damaged bush holes cannot be cleaned up to give the necessary finish on the diameter, it must be machined to the next oversize in accordance with table 1 and/or table 2 for Assembly A or table 3 and/or table 4 for Assembly B.
  Refer to Figure, Figure, Figure, Figure, Figure, Figure and Figure.
2. 1. Use Horizontal Boring Mill.
  2. Use Standard Workshop Equipment.
3. Make chamfer on the machined hole(s).
4. Remove the sharp edges around bush hole(s).
1. Refer to Figure, Figure, Figure, Figure, Figure, Figure and Figure.
2. 1. Make sure that the diameter is in limits given in the figure.
1. 1. No cracks are permitted.
    Use CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY) or CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY).
    Refer to the SPM TASK 70-23-05-230-501.
1. Refer to Figure, Figure, Figure, Figure, Figure, Figure and Figure.
2. 1. Use CoMat 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUM.
    Refer to the SPM TASK 70-38-02-300-503.
1. Refer to Figure, Figure, Figure and Figure.
2. Install new bush to the valve ring assembly.
3. 1. Use IAE 3J12822 Staking punch 1 off and IAE 3J12823 Staking fixture 1 off.
    Care must be taken to make sure that flange bore or face do not become damaged.
    The bush must not move axially after staking.
4. 1. Use CoMat 05-019 WATERPROOF SILICON CARBIDE or CoMat 05-020 WATERPROOF SILICON CARBIDE.
1. Refer to Figure, Figure and Figure.
2. 1. Use clean dry air blast or CoMat 02-099 LINT-FREE CLOTH.
3. 1. Use CoMat 03-026 LIQUID NITROGEN.
4. 1. Use hand tools.
1. Refer to Figure, Figure, Figure, Figure, Figure, Figure and Figure.
2. Visually and dimensionally examine the bush.
1. 1. Refer to the SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.
    Use Vibrating Marking Pencil.
2. 1. Refer to Step.

Replace The Bush Of The Valve Ring Assembly (For Repair Part 5A0470, Assembly A)

Replace The Bush Of The Valve Ring Assembly (For Repair Part 5A0469, Assembly A)

Replace The Bush Of The Valve Ring Assembly (For Oversize Bush, Repair Part 5A1843 And 5A1844, Assembly A)

Replace The Bush Of The Valve Ring Assembly (For Oversize Bush, Repair Part 5A1952 and 5A1953, Assembly A)

Replace The Bush Of The Valve Ring Assembly (For Repair Part 5A2227 And 5A2228, Assembly B)

Replace The Bush Of The Valve Ring Assembly (For Oversized Bush, Repair Part 5A2233 And 5A2234, Assembly B)

Replace The Bush Of The Valve Ring Assembly (For Oversized Bush, Repair Part 5A2231 And 5A2232, Assembly B)

Requirements After Job Completion

Follow-On Conditions

NONE

Manufacturer Code:	00BB6
Enterprise Name:	INDESTRUCTIBLE PAINT INC
BU Name:	INDESTRUCTIBLE PAINT INC
Street:	1 INDEPENDENCE DRIVE
City:	MONROE
State:	CT
Zip Code:	06468
Country:	USA
Phone Number:	1-203-880-9130
Fax Number:	1-203-880-9133
Email:	dave@indestructiblepaint.com
Internet:	www.indestructiblepaint.com

Manufacturer Code:	0AM53
Enterprise Name:	IAE INTERNATIONAL AERO ENGINES AG
BU Name:	NULL
Building:	SUITE 400
Street:	628 HEBRON AVENUE
City:	GLASTONBURY
State:	CT
Zip Code:	06033
Country:	USA

Manufacturer Code:	1E1X8
Enterprise Name:	SAINT-GOBAIN CERAMICS AND PLASTICS, INC
BU Name:	SAINT-GOBAIN CERAMICS AND PLASTICS, INC
Street:	1 NEW BOND ST
City:	WORCESTER
State:	MA
Zip Code:	01606
Country:	UNITED STATES OF AMERICA
Phone Number:	1-508-795-5000, 1-800-243-0028
Fax Number:	1-508-795-2380
Internet:	www.saint-gobain-northamerica.com

Manufacturer Code:	LOCAL
Enterprise Name:	LOCALLY SUPPLIED

Manufacturer Code:	X222X
Enterprise Name:	N/A – REFER TO APPLICABLE COMAT SUFFIX

Manufacturer Code:	LOCAL
Tool Number:	Drilling machine
Tool Name:	Drilling machine

TASK 72-32-72-300-005 LPC Bleed Valve Ring - Replace The Bush, Repair-005 (VRS1752)

Export Control

Copyright

Applicability

Common Information

TASK 72-32-72-300-005 LPC Bleed Valve Ring - Replace The Bush, Repair-005 (VRS1752)

Effectivity

Material of component

General

NOTE

NOTE

Preliminary Requirements

Pre-Conditions

Support Equipment

Consumables, Materials and Expendables

Spares

Safety Requirements

Procedure

SUBTASK 72-32-72-350-055 Remove the Damaged Bush of the Valve Ring Assembly

SUBTASK 72-32-72-220-068 Examine the Bush Hole of the Valve Ring Assembly

SUBTASK 72-32-72-350-061 Machine the Worn Bush Hole(s)

NOTE

SUBTASK 72-32-72-220-092 Examine the Machined Bush Hole(s) of the Valve Ring Assembly

SUBTASK 72-32-72-230-056 Examine the Bush Hole of the Valve Ring Assembly

SUBTASK 72-32-72-380-054 Apply the Surface Protection to the Valve Ring Assembly

SUBTASK 72-32-72-350-056-001 Install New Bush to the Valve Ring Assembly for Assembly A

SUBTASK 72-32-72-350-056-002 Install New Bush to the Valve Ring Assembly for Assembly B

SUBTASK 72-32-72-220-069 Examine the Bush of the Valve Ring Assembly

SUBTASK 72-32-72-350-062 Mark Repair Number on the Valve Ring Assembly

Figure: Replace The Bush Of The Valve Ring Assembly (For Repair Part 5A0470, Assembly A)

Replace The Bush Of The Valve Ring Assembly (For Repair Part 5A0470, Assembly A)

Figure: Replace The Bush Of The Valve Ring Assembly (For Repair Part 5A0469, Assembly A)

Replace The Bush Of The Valve Ring Assembly (For Repair Part 5A0469, Assembly A)

Figure: Replace The Bush Of The Valve Ring Assembly (For Oversize Bush, Repair Part 5A1843 And 5A1844, Assembly A)

Replace The Bush Of The Valve Ring Assembly (For Oversize Bush, Repair Part 5A1843 And 5A1844, Assembly A)

Figure: Replace The Bush Of The Valve Ring Assembly (For Oversize Bush, Repair Part 5A1952 and 5A1953, Assembly A)

Replace The Bush Of The Valve Ring Assembly (For Oversize Bush, Repair Part 5A1952 and 5A1953, Assembly A)

Figure: Replace The Bush Of The Valve Ring Assembly (For Repair Part 5A2227 And 5A2228, Assembly B)

Replace The Bush Of The Valve Ring Assembly (For Repair Part 5A2227 And 5A2228, Assembly B)

Figure: Replace The Bush Of The Valve Ring Assembly (For Oversized Bush, Repair Part 5A2233 And 5A2234, Assembly B)

Replace The Bush Of The Valve Ring Assembly (For Oversized Bush, Repair Part 5A2233 And 5A2234, Assembly B)

Figure: Replace The Bush Of The Valve Ring Assembly (For Oversized Bush, Repair Part 5A2231 And 5A2232, Assembly B)

Replace The Bush Of The Valve Ring Assembly (For Oversized Bush, Repair Part 5A2231 And 5A2232, Assembly B)

Requirements After Job Completion

Follow-On Conditions