TASK 72-41-34-300-007 HPC Variable Stator Vane Levers - Replace The Lever Pins, Repair-007 (VRS6196)

DMC:V2500-A0-72-41-3421-03A-920A-C|Issue No:001.00|Issue Date:2013-11-01

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 72-41-34-300-007 HPC Variable Stator Vane Levers - Replace The Lever Pins, Repair-007 (VRS6196)

Effectivity

FIG/ITEM PART NO.

04-120

6A3331

05-120

6A3325

05-140

6A3326

06-120

6A3328

06-140

6A3329

Material of component

RR

DESCRIPTION SYMBOL MATERIAL

Lever assy

TAW and TCA

Titanium alloy

Shoulder pin

TAB

Titanium alloy

General

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

This repair has been raised for the replacement of the shoulder pins on the actuating mechanism levers by hot squeeze riveting.

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

Price and availability

Refer to International Aero Engines

NOTE

Equivalent materials or equipment can be used.
More equipment and materials necessary to do this repair are given in SPM TASK 70-11-01-300-503, SPM TASK 70-23-01-230-501, SPM TASK 70-23-03-230-501 and SPM TASK 70-39-02-390-501.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Drilling machineLOCALDrilling machine
Standard workshop toolsLOCALStandard workshop tools
Hand grinderLOCALHand grinder
Resistance welding machineLOCALResistance welding machine
DriftLOCALDrift
DrillLOCALDrill

4.5 mm

Crack test equipmentLOCALCrack test equipment
IAE 3R18654 Top electrode0AM53IAE 3R18654
IAE 3R18655 Bottom electrode0AM53IAE 3R18655

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Shoulder pin6A24441
Shoulder pin6A24441
Shoulder pin6A24441
Shoulder pin6A24441
Shoulder pin6A24441

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-34-350-068 Remove the Damaged Pin

      CAUTION

      DO NOT DAMAGE THE HOLE IN THE LEVER.

      1. Remove the damaged pin.

      1. Use the hand grinder or a drilling machine and a 4.5 mm (0.177 in.) diameter drill to remove the head pin.

        Remove the pin by use of a drift.

      2. Clean the pin location hole in the lever.

      1. Remove the burrs but keep sharp edge to the hole, use hand tools.

    3. Visually inspect the pin location in the lever.

    2. SUBTASK 72-41-34-230-087-001 Crack Test

      1. Do a penetrant crack test to the lever.

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

        No cracks are permitted.

    3. SUBTASK 72-41-34-230-087-002 Crack Test

      1. Do a penetrant crack test to the lever.

      1. Refer to the SPM TASK 70-23-03-230-501.

        No cracks are permitted.

    4. SUBTASK 72-41-34-110-055 Chemically Clean

      1. Remove grease from the lever and the new shoulder pin.

      1. Refer to the SPM TASK 70-11-01-300-503, SUBTASK 70-11-01-300-002.

    5. SUBTASK 72-41-34-390-051 Hot Squeeze Rivet

      CAUTION

      DO NOT OVERHEAT THE MATERIAL.

      NOTE

      Weld test pieces must be used to set machine positions. Use a low voltage position and the minimum quantity of heat necessary to make the rivet forge over. If too much heat is used the material will crack and oxidise.

    1. Refer to Figure, Figure, Figure, Figure and Figure

      2. Assemble the parts.

      1. Make sure the location pin is on the correct side of the lever and the location pin is at 90 degrees to the lever.

        Refer to the illustrations.

      3. Hot squeeze rivet.

      1. Fit IAE 3R18654 Top electrode 1 off and IAE 3R18655 Bottom electrode 1 off to the resistant welding machine.

        Hot squeeze rivet.

        Refer to the SPM TASK 70-39-02-390-501.

    6. SUBTASK 72-41-34-230-088-001 Crack Test

      1. Do a penetrant crack test.

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

        No cracks are permitted.

    7. SUBTASK 72-41-34-230-088-002 Crack Test

      1. Do a penetrant crack test.

      1. Refer to the SPM TASK 70-23-03-230-501.

        No cracks are permitted.

    8. SUBTASK 72-41-34-220-191 Examine the Part

    1. Refer to: Figure, Figure, Figure, Figure and Figure

      2. Visually/dimensionally inspect.

      1. Refer to illustrations.

    9. Figure: HP compressor stage 4 variable vane lever assembly

    HP compressor stage 4 variable vane lever assembly

    Figure: HP compressor stage 5 variable vane lever assembly

    HP compressor stage 5 variable vane lever assembly

    Figure: HP compressor stage 5 variable vane lever assembly

    HP compressor stage 5 variable vane lever assembly

    Figure: HP compressor stage 6 variable vane lever assembly

    HP compressor stage 6 variable vane lever assembly

    Figure: HP compressor stage 6 variable vane lever assembly

    HP compressor stage 6 variable vane lever assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Link not Found
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:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Tool Number:Crack test equipment
Tool Name:Crack test equipment
Manufacturer Code:LOCAL
Tool Number:Drift
Tool Name:Drift
Manufacturer Code:LOCAL
Tool Number:Drill
Tool Name:Drill
Manufacturer Code:LOCAL
Tool Number:Drilling machine
Tool Name:Drilling machine
Link not Found
Manufacturer Code:0AM53
Tool Number:IAE 3R18654
Tool Name:IAE 3R18654 Top electrode
Manufacturer Code:0AM53
Tool Number:IAE 3R18655
Tool Name:IAE 3R18655 Bottom electrode
Manufacturer Code:LOCAL
Tool Number:Resistance welding machine
Tool Name:Resistance welding machine
Manufacturer Code:LOCAL
Tool Number:Standard workshop tools
Tool Name:Standard workshop tools