TASK 72-41-34-300-015 HPC Vane Actuating Crankshaft Bearing Housings - Replace The Bearing In The Front Housing, Repair-015 (VRS6239)

DMC:V2500-A0-72-41-3412-00A-920A-C|Issue No:002.00|Issue Date:2018-02-01

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 72-41-34-300-015 HPC Vane Actuating Crankshaft Bearing Housings - Replace The Bearing In The Front Housing, Repair-015 (VRS6239)

Effectivity

FIG/ITEM

PART NO.

ASSEMBLY

01-730

6A3517

A

01-631

6A7370

B

Material of component

The front bearing housing is made of jethete.

General

This Repair must only be done when the instruction to do so is given in TASK 72-41-34, Inspection.

This Repair can only be done five times. If the part is identified as VRS6239/4, it can not be repaired.

The practices and processes referred to in the procedure by the TASK/SUBTASK numbers are in the SPM.

Price and availability

Refer to International Aero Engines.

Related repairs

HP Compressor Front and Rear Housing Assembly - Replacement of Surface Protection. Refer to TASK 72-41-34-300-033 (VRS6356).

NOTE

More equipment and materials necessary to do this Repair are in the SPM TASKs given below:
SPM TASK 70-09-00-400-501
SPM TASK 70-11-26-300-503
SPM TASK 70-23-01-230-501

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Standard workshop equipmentLOCALStandard workshop equipment
Milling machineLOCALMilling machine
Workshop inspection equipmentLOCALWorkshop inspection equipment
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment
Chemical cleaning equipmentLOCALChemical cleaning equipment
Paint brushLOCALPaint brush
Drilling machineLOCALDrilling machine
DrillLOCALDrill

0.114 in. (2.9 mm) Dia.

ReamerLOCALReamer

0.118 in. (3.0 mm) Dia.

End millLOCALEnd mill

0.472 in. (12.0 mm) Dia.

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-124 ISOPROPYL ALCOHOLLOCALCoMat 01-124
CoMat 01-131 INDICATORLOCALCoMat 01-131
CoMat 02-099 LINT-FREE CLOTHLOCALCoMat 02-099
CoMat 03-031 STOPPING-OFF CRAYONLOCALCoMat 03-031
CoMat 03-124 FLAME SPRAY NICKEL-ALUMINUM(78 Ni-22 Al)39918CoMat 03-124
CoMat 06-073 INK, METAL MARKING88303CoMat 06-073
CoMat 07-024 AEROLAC METAL PROTECTIVE VARNISH, CLEARLOCALCoMat 07-024
CoMat 10-110 HIGH TEMPERATURE ANTI-SEIZE COMPOUNDK6835CoMat 10-110

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Retaining RingRRN3621
PinAS206431
Bearing03-413-40E0011
Bearing03-413-45E0011

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-34-350-104 Remove the Bearing

    1. Refer to Figure and Figure.

      2. Remove the safety ring.

      1. Use standard workshop equipment.

      3. Dress away the peening around the pin hole.

      1. Use standard workshop equipment.

      4. Push the bearing out of the housing.

      1. Use standard workshop equipment.

    2. SUBTASK 72-41-34-220-238 Visually Examine the Front Housing Assembly

    1. Refer to Figure and Figure.

      2. Visually examine and measure the dimensions of the bearing location bore and safety ring recess.

      1. Reject if oversize.

      3. Visually examine and measure the dimensions of the safety ring and pin.

      1. Keep for re-use if not worn.

    3. SUBTASK 72-41-34-322-051 Machine the Scallop

    1. Refer to Figure and Figure.

      2. Clamp the front housing assembly to the milling machine and machine the scallop.

      1. Machine at a position AE where VRS6239 has not been done before.

        Use a 0.472 in. (12.00 mm) diameter end mill, with a milling machine.

    3. Remove the front housing assembly from the milling machine.

    4. SUBTASK 72-41-34-350-105 Remove the Burrs

      1. Remove the burrs and sharp edges from the bearing housing.

      1. Use standard workshop equipment.

      2. Clean the bearing location and the safety ring recess to remove all unwanted material.

      1. Use a soft clean cloth and blast with air.

    5. SUBTASK 72-41-34-220-239 Examine the Repair Area

    1. Refer To Figure and Figure.

      2. Measure the dimensions of the repair area.

      1. Use workshop inspection equipment.

    6. SUBTASK 72-41-34-230-097 Do a Crack Test

      1. Do a penetrant crack test.

      1. Refer to the SPM TASK 70-23-01-230-501.

        Use penetrant crack test equipment.

        Cracks are not permitted.

    7. SUBTASK 72-41-34-110-070 Clean the Bearing and Front Housing Assembly

    1. Refer to Figure.

      2. Chemically clean the mating surfaces of the bearing and front housing assembly.

      1. Refer to the SPM TASK 70-11-26-300-503.

        Use a CoMat 02-099 LINT-FREE CLOTH, made moist with CoMat 01-131 INDICATOR, or CoMat 01-124 ISOPROPYL ALCOHOL to make the mating surfaces clean.

    8. SUBTASK 72-41-34-350-106 Install the Bearing to the Front Housing Assembly

    1. Refer to Figure.

      2. Apply dry film lubricant to the mating faces of the bearing and front housing assembly bore.

      1. Stir fully and apply a single coat with a clean paint brush.

        Allow to air dry for 10 minutes.

      3. Push the bearing fully into the front housing assembly.

      1. Use standard workshop equipment.

    9. SUBTASK 72-41-34-323-051 Drill and Ream the Pin Hole

    1. Refer to Figure and Figure.

      2. Clamp the front housing assembly to the drilling machine.

      1. Use a drilling machine.

      3. Drill and ream the hole for the pin.

      1. Drill at the position AE, as milled in Step.

        Use a 0.114 in. (2.9 mm) diameter drill and a 0.118 in. (3.0 mm) diameter reamer.

      4. Remove the burrs from the hole.

      1. Use standard workshop equipment.

      5. Clean the hole.

      1. Use a soft cloth and blast with air.

    10. SUBTASK 72-41-34-350-107 Fit the Pin and Safety Ring

    1. Refer to Figure and Figure.

      2. Fit the pin into the new drilled hole.

      1. Use standard workshop equipment.

      3. Peen the edge of the hole at two positions.

      1. Use standard workshop equipment.

      4. Fit the safety ring.

      1. Use standard workshop equipment.

    11. SUBTASK 72-41-34-380-061 Replace any Damaged Enamel

      1. Replace any damaged enamel.

      1. Refer to VRS6356, TASK 72-41-34-300-033.

    12. SUBTASK 72-41-34-350-108 Identify the Repair

    1. Refer to Figure.

      2. Make a mark VRS6239 adjacent to existing markings which are under the surface protection.

      1. Refer to the SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-002.

        For second applications of this Repair, mark /1 after VRS6239.

        For third applications of this Repair, mark /2 after VRS6239.

        For fourth application of this Repair, mark /3 after VRS6239.

        For the fifth application of this Repair, mark /4 after VRS6239.

        Use CoMat 06-073 INK, METAL MARKING and CoMat 07-024 AEROLAC METAL PROTECTIVE VARNISH, CLEAR aerolac metal protective varnish applied with a paint brush.

    13. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised figure 1. (17VG139)

Link not Found
Manufacturer Code:39918
Enterprise Name:SULZER METCO (US) INC, SEE SUPPLIER CODE 01FK3
Manufacturer Code:88303
Enterprise Name:PHILLIPS PROCESS CO., INC
BU Name:PHILLIPS PROCESS CO., INC
Street:20 MAGNOLIA STREET
City:ROCHESTER
State:NY
Zip Code:14608-2931
Country:USA
Phone Number:1-585-436-2310
Fax Number:1-585-436-2310
Manufacturer Code:K6835
Enterprise Name:MED-LAB LTD
BU Name:MED-LAB LTD
Street:COPELAND ST
City:DERBY
Zip Code:DE1 2PU
Country:GREAT BRITAIN
Phone Number:44-1332-349094
Fax Number:44-1332-371237
Email:sales@med-lab.co.uk
Internet:www.med-lab.co.uk
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Link not Found
Link not Found
Link not Found
Manufacturer Code:LOCAL
Supply Number:CoMat 01-124
Type:sp01
Supply Short Name:CoMat 01-124 ISOPROPYL ALCOHOL
Supply Name:CoMat 01-124 ISOPROPYL ALCOHOL
Specification Groups:
Doc NumberType
OMAT:1/40GPR TECHNICAL GRADE
PMC 9094GPR TECHNICAL GRADE
JCR-011GPR TECHNICAL GRADE
Suppliers:
ManufacturerRemarks
LOCAL
U1185
24853
K6835
Manufacturer Code:LOCAL
Supply Number:CoMat 01-131
Type:sp01
Supply Short Name:CoMat 01-131 INDICATOR
Supply Name:CoMat 01-131 INDICATOR
Specification Groups:
Doc NumberType
OMAT:1/204ALKALI BLUE
Suppliers:
ManufacturerRemarks
LOCAL
24853
K6835
U1185
IAE85
Manufacturer Code:X222X
Supply Number:CoMat 02-099
Type:sp01
Supply Short Name:CoMat 02-099 LINT-FREE CLOTH
Supply Name:CoMat 02-099 LINT-FREE CLOTH
Specification Groups:
Doc NumberType
WHERE COMAT 02-099 IS SPECIFIED WITH NO SUFFIX, USE COMAT 02-099A OR COMAT 02-099B.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Supply Number:CoMat 03-031
Type:sp01
Supply Short Name:CoMat 03-031 STOPPING-OFF CRAYON
Supply Name:CoMat 03-031 STOPPING-OFF CRAYON
Specification Groups:
Doc NumberType
OMAT:3/123NICROBRAZ GREEN STOP OFF PEN
JCR-242NICROBRAZ GREEN STOP OFF PEN
Suppliers:
ManufacturerRemarks
LOCAL
U0163
K6835
63585
IE306
Manufacturer Code:39918
Supply Number:CoMat 03-124
Type:sp01
Supply Short Name:CoMat 03-124 FLAME SPRAY NICKEL-ALUMINUM(78 Ni-22 Al)
Supply Name:CoMat 03-124 FLAME SPRAY NICKEL-ALUMINUM(78 Ni-22 Al)
Specification Groups:
Doc NumberType
PWA 1334METCO 405-NS
Suppliers:
ManufacturerRemarks
39918
Manufacturer Code:LOCAL
Supply Number:CoMat 06-073
Type:sp01
Supply Short Name:CoMat 06-073 INK, METAL MARKING
Supply Name:CoMat 06-073 INK, METAL MARKING
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:X222X
Supply Number:CoMat 07-024
Type:sp01
Supply Short Name:CoMat 07-024 AEROLAC METAL PROTECTIVE VARNISH, CLEAR
Supply Name:CoMat 07-024 AEROLAC METAL PROTECTIVE VARNISH, CLEAR
Specification Groups:
Doc NumberType
DELETED. USE COMAT 07-024A
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:00W7K
Supply Number:CoMat 10-110
Type:sp01
Supply Short Name:CoMat 10-110 HIGH TEMPERATURE ANTI-SEIZE COMPOUND
Supply Name:CoMat 10-110 HIGH TEMPERATURE ANTI-SEIZE COMPOUND
Specification Groups:
Doc NumberType
ROCOL ANTI-SEIZE STAINLESS
Suppliers:
ManufacturerRemarks
00W7K
K0567
K6835
Z0238
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Drill
Tool Name:Drill
Manufacturer Code:LOCAL
Tool Number:Drilling machine
Tool Name:Drilling machine
Manufacturer Code:LOCAL
Tool Number:End mill
Tool Name:End mill
Manufacturer Code:LOCAL
Tool Number:Milling machine
Tool Name:Milling machine
Manufacturer Code:LOCAL
Tool Number:Paint brush
Tool Name:Paint brush
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
Manufacturer Code:LOCAL
Tool Number:Reamer
Tool Name:Reamer
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment