Preliminary Requirements

Procedure

1. SUBTASK 72-45-24-350-056-001 (V2500-A1) Disassemble the Stage 2 HPT Ring Segment and Vane Cluster

   1. If necessary, mark the detail parts to make sure the same parts are assembled as a set.

      1. Refer to Figure and Figure.

         1. Make a mark by the procedures given in the SPM TASK 70-09-00-400-501.

         2. Use a CoMat 06-110 PENCIL or CoMat 06-111 PENCIL.

   2. 
      CAUTION
      DO NOT USE MASKING TAPE TO COVER THE CANNON HOLES. TAPE RESIDUE CAN CAUSE DAMAGE TO THE PART.

      Install a locally fabricated plug in the vane inner diameter cannon holes.

      1. Refer to Figure or Figure.

   3. Install the vane cluster in IAE 3P16216 Drill fixture 1 off.

      1. Refer to Figure.

   4. Drill out the two rivets.

      1. Refer to Figure or Figure.

         1. Be careful not to damage the material on the adjacent parts when you drill.

   5. Remove the ring segment and vane cluster from the drill fixture.

   6. Remove the rivets and disassemble the vane cluster.

      1. Refer to Figure.

2. SUBTASK 72-45-24-350-056-002 (V2500-A5) Disassemble the Stage 2 HPT Ring Segment and Vane Cluster

   1. If necessary, mark the detail parts to make sure the same parts are assembled as a set.

      1. Refer to Figure and Figure. Make a mark by the procedures given in the SPM TASK 70-09-01-400-501.

         1. Use a CoMat 06-110 PENCIL or CoMat 06-111 PENCIL.

   2. 
      CAUTION
      DO NOT USE MASKING TAPE TO COVER THE CANNON HOLES. TAPE RESIDUE CAN CAUSE DAMAGE TO THE PART.

      Install a locally fabricated plug in the vane inner diameter cannon holes.

      1. Refer to Figure.

   3. Install the vane cluster in IAE 3P16396 Drill fixture 1 off.

      1. Refer to Figure.

   4. Drill out the two rivets.

      1. Refer to Figure.

         1. Be careful not to damage the material on the adjacent parts when you drill.

   5. Remove the ring segment and vane cluster from the drill fixture.

   6. Remove the rivets and disassemble the vane cluster.

      1. Refer to Figure.

3. SUBTASK 72-45-24-220-069 Examine the Old Vane Assembly Rivet Hole

   1. Examine the old vane assembly rivet hole.

      1. Refer to TASK 72-45-24-200-000 (INSPECTION-000).

4. SUBTASK 72-45-24-350-057-001 (V2500-A1) Assemble the Vane Cluster Detail Parts for Drilling the Rivet Holes (When You Replace the Ring Segment Assembly)

   NOTE

   When the ring segment assembly is replaced with a new or repaired segment with no rivet holes, the vanes rivet holes must be used as a guide for this procedure.

   1. Install the ring segment assembly and two vane assemblies in the IAE 3P16216 Drill fixture 1 off.

      1. Refer to Figure and Figure.

         1. If the vane details are not marked, you can use detail parts from other vane clusters if they have the same requirements given in the figures and the vane class difference is not more than four.

   2. Install shims in Gaps N and P. Use the correct shimstock thickness.

      1. Refer to Figure.

   3. Tighten the vane cluster in the drill fixture.

      1. Refer to Figure.

   4. Transfer drill the ring segment rivet holes.

      1. Refer to Figure and Figure.

         1. Turn the detail drill fixture quarter-turn screw 90 degrees, position the detail leaf and drill guide bushings up.

         2. Do not use the drill guide bushings to drill the rivet holes.

         3. Use the vane assembly rivet holes as a transfer guide.

         4. The rivet holes diameter is between 0.159 in. and 0.163 in. (4.039 mm and 4.140 mm).

   5. Remove the vane assemblies and ring segment assembly from the drill fixture.

5. SUBTASK 72-45-24-350-057-002 (V2500-A5) Assemble the Vane Cluster Detail Parts for Drilling the Rivet Holes (When You Replace the Ring Segment Assembly)

   NOTE

   When the ring segment assembly is replaced with a new or repaired segment with not rivet holes, the vane rivet holes must be used as a guide for this procedure.

   1. Install the ring segment assembly and two vane assemblies in the IAE 3P16396 Drill fixture 1 off.

      1. Refer to Figure and Figure.

         1. If the vane details are not marked, you can use detail parts from other vane clusters if they have the same requirements given in the figures and the vane class difference is not more than four.

   2. Install shims in Gaps N and P. Use the correct shimstock thickness.

      1. Refer to Figure.

   3. Tighten the vane cluster in the drill fixture.

      1. Refer to Figure.

   4. Transfer drill the ring segment rivet holes.

      1. Refer to Figure and Figure.

         1. Turn the detail drill fixture quarter-turn screw 90 degrees, position the detail leaf and drill guide bushings up.

         2. Do not use the drill guide bushing to drill the rivet holes.

         3. Use the vane assembly rivet holes as a transfer guide. The rivet holes diameter is between 0.159 in. and 0.163 in. (4.039 mm and 4.140 mm).

   5. Remove the vane assemblies and ring segment assembly from the drill fixture.

6. SUBTASK 72-45-24-350-057-003 (V2500-A1) Assemble the Vane Cluster Detail Parts for Drilling the Rivet Holes (When You Replace the Ring Segment Assembly and One Detail Vane)

   NOTE

   When the ring segment assembly and one detail vane assembly are replaced with a new or repaired part with no rivet holes, the old vane assembly rivet hole and the IAE 3P16216 Drill fixture fixture drill guide bushing must be used for this procedure.

   1. Install the ring segment assembly and two vane assemblies in the IAE 3P16216 Drill fixture 1 off.

      1. Refer to Figure and Figure.

         1. If the vane detail is not marked you can use a detail part from other vane clusters if they have the same requirements given in the figures and the vane class difference is not more than four.

   2. Install shims in Gaps N and P. Use the correct shimstock thickness.

      1. Refer to Figure.

   3. Tighten the vane cluster in the drill fixture.

      1. Refer to Figure.

   4. Transfer drill the ring segment rivet hole.

      1. Use a vane with an existing hole.

         1. Turn the detail drill fixture quarter-turn screw 90 degrees, position the detail leaf and drill guide bushings up.

         2. Do not use the drill guide bushing to drill this rivet hole.

         3. Use the old vane assembly rivet hole as a transfer guide.

         4. The rivet hole diameter is between 0.159 in. and 0.163 in. (4.039 mm and 4.140 mm).

   5. Put a rivet in the drilled hole. Do not set the rivet.

      1. Refer to Figure or Figure.

   6. Drill the other ring segment and vane assembly rivet hole.

      1. Refer to Figure and Figure.

         1. Position the IAE 3P16216 Drill fixture detail leaf and drill guide bushings down.

         2. Turn the quarter-turn screw 90 degrees to lock the detail leaf in position.

         3. Use the drill guide bushing to drill this rivet hole.

         4. The rivet hole diameter is between 0.159 in. and 0.163 in. (4.039 mm and 4.140 mm).

   7. Remove the vane assemblies and ring segment assembly from the drill fixture.

7. SUBTASK 72-45-24-350-057-004 (V2500-A5) Assemble the Vane Cluster Detail Parts for Drilling the Rivet Holes (When You Replace the Ring Segment Assembly and One Detail Vane)

   NOTE

   When the ring segment assembly and one detail vane assembly are replaced with a new or repaired part with no rivet holes, the old vane assembly rivet hole and the IAE 3P16396 Drill fixture guide bushing must be used for this procedure.

   1. Install the ring segment assembly and two vane assemblies in the IAE 3P16396 Drill fixture 1 off.

      1. Refer to Figure and Figure.

         1. If the vane detail is not marked, you can use detail parts from other vane clusters if they have the same requirements given in the figures and the vane class difference is not more than four.

   2. Install shims in Gaps N and P. Use the correct shimstock thickness.

      1. Refer to Figure.

   3. Tighten the vane cluster in the drill fixture.

      1. Refer to Figure.

   4. Transfer drill the ring segment rivet holes.

      1. Use a vane with an existing hole.

         1. Refer to Figure and Figure.

         2. Turn the detail drill fixture quarter-turn screw 90 degrees, position the detail leaf and drill guide bushings up.

         3. Do not use the drill guide bushing to drill this rivet hole.

         4. Use the old vane assembly rivet hole as a transfer guide.

         5. The rivet holes diameter is between 0.159 in. and 0.163 in. (4.039 mm and 4.140 mm).

   5. Put the rivet in the drilled hole. Do not set the rivet.

      1. Refer to Figure or Figure.

   6. Drill the other ring segment and vane assembly rivet hole.

      1. Refer to Figure and Figure.

         1. Position the IAE 3P16396 Drill fixture detail leaf and drill guide bushings down.

         2. Turn the quarter-turn screw 90 degrees to lock the detail leaf in position.

         3. Use the drill guide bushing to drill this rivet hole.

         4. The rivet hole diameter is between 0.159 in. and 0.163 in. (4.039 mm and 4.140 mm).

   7. Remove the vane assemblies and ring segment assembly from the drill fixture.

8. SUBTASK 72-45-24-350-058 Deburr the Rivet Holes

   1. Deburr the vane assemblies rivet holes.

      1. Remove the burrs and chips.

         1. Refer to SPM TASK 70-39-03-390-501.

9. SUBTASK 72-45-24-350-059-001 (V2500-A1) Assemble and Rivet the Vane Cluster

   1. Install the seal assembly and seals in the seal grooves between the two vane assemblies.

      1. Refer to Figure and Figure.

         1. Use CoMat 02-009 BEESWAX SUBSTITUTE to hold the seals in the vane seal grooves.

         2. Use the old seals if they are not bent, burned, cracked or worn.

   2. 
      CAUTION
      DO NOT USE MASKING TAPE OR WIRE TO HOLD VANE CLUSTER ASSEMBLY TOGETHER FOR ASSEMBLY. WIRE OR TAPE RESIDUE CAN CAUSE DAMAGE TO THE AIRFOIL.

      Install the ring segment assembly to the vane assemblies inner diameter. Hold the vane cluster together with a nylon strap or equivalent.

      1. Refer to Figure.

   3. Install the two rivets.

      1. Refer to Figure or Figure.

   4. Examine Gaps N, P and Surface H.

      1. Refer to Figure.

   5. Rivet the ring segment assembly to the vane assemblies.

      1. Refer to Figure or Figure.

         1. Use the cold set rivet method.

         2. Refer to SPM TASK 70-39-03-390-501.

   6. Remove the nylon strap.

10. SUBTASK 72-45-24-350-059-002 (V2500-A5) Assemble and Rivet the Vane Cluster

    NOTE

    It is not easy to get access to the rivets because of the ID forward flange of the vane. Thus, rivet the right vane first, then assembly and rivet the left vane. Refer to Figure.

    1. Assemble the ring segment assembly to the right vane assembly inner diameter.

       1. Refer to Figure.

    2. Install the rivet.

       1. Refer to Figure.

    3. Rivet the ring segment assembly to the right vane.

       1. Refer to Figure.

          1. Use the cold set rivet method.

          2. Refer to SPM TASK 70-39-03-390-501.

    4. Assemble the left vane to the right vane and seal assembly.

       1. Refer to Figure.

    5. Install the seals in the seal grooves between the two vane assemblies.

       1. Refer to Figure and Figure.

          1. Use CoMat 02-009 BEESWAX SUBSTITUTE to hold the seals in the vane seal grooves.

          2. Use the old seals if they are not bent, burned, cracked or worn.

    6. 
       CAUTION
       DO NOT USE MASKING TAPE OR WIRE TO HOLD VANE CLUSTER ASSEMBLY TOGETHER FOR ASSEMBLY. WIRE OR TAPE RESIDUE CAN CAUSE DAMAGE TO THE AIRFOIL.

       Hold the vane cluster together with a nylon strap or equivalent.

       1. Refer to Figure.

    7. Install the second rivet.

       1. Refer to Figure.

    8. Examine Gaps N and P and Surface H.

       1. Refer to Figure.

    9. Rivet the ring assembly to the left vane assembly.

       1. Refer to Figure.

          1. Use the cold set rivet method.

          2. Refer to SPM TASK 70-39-03-390-501.

    10. Remove the nylon strap.

11. SUBTASK 72-45-24-220-070-001 (V2500-A1) Inspect the Rivets

    1. Inspect the installed rivets.

       1. Refer to Figure or Figure.

          1. Use the procedure given in the SPM TASK 70-39-03-390-501.

12. SUBTASK 72-45-24-220-070-002 (V2500-A5) Inspect the Rivets

    1. Inspect the installed rivets.

       1. Refer to Figure.

          1. Use the procedure given in the SPM TASK 70-39-03-390-501.

13. SUBTASK 72-45-24-350-060-001 (V2500-A1) Remove the Plugs

    1. Remove the two plugs from the vane cannon holes.

       1. Refer to Figure or Figure.

14. SUBTASK 72-45-24-350-060-002 (V2500-A5) Remove the Plugs

    1. Remove the two plugs from the vane cannon holes.

       1. Refer to Figure.

Figure: Repair Details and Dimensions

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Figure: Repair Details and Dimensions

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Figure: Repair Details and Dimensions (PN2A0172 and 2A1072)

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Figure: Repair Details and Dimensions (PN2A2072, 2A2172, 2A2772, 2A2172, 2A2072 and 2A2872)

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Repair Details and Dimensions (PN2A2072, 2A2172, 2A2772, 2A2172, 2A2072 and 2A2872)

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Figure: Repair Details and Dimensions

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Figure: Repair Details and Dimensions

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Figure: Repair Details and Dimensions

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Figure: Repair Details and Dimensions

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Figure: Repair Details and Dimensions

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Figure: Repair Details and Dimensions

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Figure: Repair Details and Dimensions IAE 3P16216

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Figure: Repair Details and Dimensions IAE 3P16396

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Repair Details and Dimensions IAE 3P16396 Drill fixture

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