Preliminary Requirements

Procedure

1. SUBTASK 72-45-00-220-053-001 Reference the Fits and Clearances of the HP Turbine Rotor and Stator Assembly at Location 1500 (Pre SBE 72-0075)

   1. Refer to Figure.

   2. Reference the clearance at location 1500. If required use the data written as a note in TASK 72-45-11-200-000 (INSPECTION-000) and TASK 72-45-31-200-000 (REPAIR-000).

      Table 1. Fits and Clearances (all dimensions are in inches)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1500
      Stage 2 Turbine Hub ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-010), Location Diameter
      Stage 1 Turbine Hub HPT Stage 1 Hub (72-45-11, 01-010), Bore
      Stage 2 Turbine Hub Location Diameter	5.633
      	5.637	0.001
      Stage 1 Turbine Hub Bore	5.638	0.009
      	5.642

      Table 2. Fits and Clearances (all dimensions are in millimeters)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1500
      Stage 2 Turbine Hub ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-010), Location Diameter
      Stage 1 Turbine Hub HPT Stage 1 Hub (72-45-11, 01-010), Bore
      Stage 2 Turbine Hub Location Diameter	143.079
      	143.179	0.025
      Stage 1 Turbine Hub Bore	143.206	0.229
      	143.306

2. SUBTASK 72-45-00-220-053-002 Reference the Fits and Clearances of the HP Turbine Rotor and Stator Assembly at Location 1500 (SBE 72-0075)

   1. Refer to Figure.

   2. SBE 72-0075: Recontoured stage 1 and stage 2 hubs.

   3. Reference the clearance at location 1500. If required use the data written as a note in TASK 72-45-31-200-000 (REPAIR-000).

      Table 3. Fits and Clearances (all dimensions are in inches)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1500
      Stage 2 Turbine Hub ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-010), Location Diameter
      Stage 2 HPT Heatshield ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-020), Bore
      Stage 2 Turbine Hub Location Diameter	5.529
      	5.533	0.002
      Stage 2 HPT Heatshield	5.535	0.012
      	5.541

      Table 4. Fits and Clearances (all dimensions are in millimeters)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1500
      Stage 2 Turbine Hub ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-010), Location Diameter
      Stage 2 HPT Heatshield ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-020), Bore
      Stage 2 Turbine Hub Location Diameter	140.437
      	140.538	0.05
      Stage 2 HPT Heatshield	140.589	0.30
      	140.741

3. SUBTASK 72-45-00-220-054-A00 Reference the Fits and Clearances of the HP Turbine Rotor and Stator Assembly at Location 1503 (Pre SBE 72-0207)

   1. Refer to Figure.

   2. Reference the clearance/interference at location 1503. If required use the data written as a note in TASK 72-45-11-200-000 (INSPECTION-000) and TASK 72-45-00-200-000 (INSPECTION-000).

      Table 5. Fits and Clearances (all dimensions are in inches)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1503
      Stage 1 Turbine Hub HPT Stage 1 Hub (72-45-11, 01-010), Location Diameter
      Stage 2 HPT Airseal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080), Location Diameter
      Stage 1 Turbine Hub Location Diameter	18.122	Intf		Intf
      	18.119	0.007		0.007
      Stage 2 HPT Airseal Location Diameter	18.126	0.000		0.002
      	18.122	Clear		Clear

      Table 6. Fits and Clearances (all dimensions are in millimeters)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1503
      Stage 1 Turbine Hub HPT Stage 1 Hub (72-45-11, 01-010), Location Diameter
      Stage 2 HPT Airseal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080), Location Diameter
      Stage 1 Turbine Hub Location Diameter	460.298	Intf		Intf
      	460.223	0.177		0.177
      Stage 2 HPT Airseal Location Diameter	460.400	0.000		0.051
      	460.298	Clear		Clear

4. SUBTASK 72-45-00-220-054-B00 Reference the Fits and Clearances of the HP Turbine Rotor and Stator Assembly at Location 1503 (SBE 72-0207)

   1. Refer to Figure.

   2. SBE 72-0207: New Stage 2 HPT Airseal.

   3. Reference the clearance/interference at location 1503. If required use the data written as a note in TASK 72-45-11-200-000 (INSPECTION-000) and TASK 72-45-00-200-000 (INSPECTION-000).

      Table 7. Fits and Clearances (all dimensions are in inches)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1503
      Stage 1 Turbine Hub HPT Stage 1 Hub (72-45-11, 01-010), Location Diameter
      Stage 2 HPT Airseal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080), Location Diameter
      Stage 1 Turbine Hub Location Diameter	18.122	Intf		Intf
      	18.119	0.007		0.0075
      Stage 2 HPT Airseal Location Diameter	18.126	0.000		0.0005
      	18.122	Clear		Clear

      Table 8. Fits and Clearances (all dimensions are in millimeters)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1503
      Stage 1 Turbine Hub HPT Stage 1 Hub (72-45-11, 01-010), Location Diameter
      Stage 2 HPT Airseal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080), Location Diameter
      Stage 1 Turbine Hub Location Diameter	460.298	Intf		Intf
      	460.223	0.177		0.190
      Stage 2 HPT Airseal Location Diameter	460.400	0.000		0.013
      	460.298	Clear		Clear

5. SUBTASK 72-45-00-220-055-A00 Reference the Fits and Clearances of the HP Turbine Rotor and Stator Assembly at Location 1505 (Pre SBE 72-0207)

   1. Refer to Figure.

   2. Reference the clearance/interference at location 1505. If required use the data written as a note in TASK 72-45-00-200-000 (INSPECTION-000) and TASK 72-45-31-200-000 (REPAIR-000).

      Table 9. Fits and Clearances (all dimensions are in inches)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1505
      Stage 2 HPT Airseal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080), Location Diameter
      Stage 2 Turbine Hub ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-010), Location Diameter
      Stage 2 HPT Airseal Location Diameter	17.131	Intf		Intf
      	17.135	0.001		0.001
      Stage 2 Turbine Hub Location Diameter	17.134	0.007		0.008
      	17.138	Clear		Clear

      Table 10. Fits and Clearances (all dimensions are in millimeters)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1505
      Stage 2 HPT Airseal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080), Location Diameter
      Stage 2 Turbine Hub ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-010), Location Diameter
      Stage 2 HPT Airseal Location Diameter	435.127	Intf		Intf
      	435.229	0.025		0.025
      Stage 2 Turbine Hub Location Diameter	435.204	0.178		0.203
      	435.305	Clear		Clear

6. SUBTASK 72-45-00-220-055-B00 Reference the Fits and Clearances of the HP Turbine Rotor and Stator Assembly at Location 1505 (SBE 72-0207)

   1. Refer to Figure.

   2. SBE 72-0207: New Stage 2 AirSeal.

   3. Reference the clearance/interference at location 1505. If required use the data written as a note in TASK 72-45-00-200-000 (INSPECTION-000) and TASK 72-45-31-200-000 (REPAIR-000).

      Table 11. Fits and Clearances (all dimensions are in inches)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1505
      Stage 2 HPT Airseal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-180), Location Diameter
      Stage 2 Turbine Hub ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-010), Location Diameter
      Stage 2 HPT Airseal Location Diameter	17.131	Intf		Intf
      	17.135	0.001		0.0015
      Stage 2 Turbine Hub Location Diameter	17.134	0.007		0.0075
      	17.138	Clear		Clear

      Table 12. Fits and Clearances (all dimensions are in millimeters)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1505
      Stage 2 HPT Airseal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080), Location Diameter
      Stage 2 Turbine Hub ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-010), Location Diameter
      Stage 2 HPT Airseal Location Diameter	435.127	Intf		Intf
      	435.229	0.025		0.039
      Stage 2 Turbine Hub Location Diameter	435.204	0.178		0.190
      	435.305	Clear		Clear

7. SUBTASK 72-45-00-220-116-001 Reference the Fits and Clearances of the Stage 2 HPT Heatshield and Stage 1 HPT Hub at Location 1515 (Pre SBE 72-0075)

   NOTE

   This inspection reference does not apply to engines before SBE 72-0075.

   1. Refer to Figure.

8. SUBTASK 72-45-00-220-116-002 Reference the Fits and Clearances of the Stage 2 HPT Heatshield and Stage 1 HPT Hub at Location 1515 (SBE 72-0075)

   1. Refer to Figure.

   2. SBE 72-0015: Recontoured stage 1 and stage 2 hubs.

   3. Reference the clearance at location 1515. If required, use the data written as a note in TASK 72-45-11-200-000 (INSPECTION-000) and TASK 72-45-31-200-000 (REPAIR-000).

      Table 13. Fits and Clearances (all dimensions are in inches)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1515
      Stage 2 HPT Heatshield ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-020), Location Diameter
      Stage 1 HPT Hub HPT Stage 1 Hub(72-45-11, 01-011), Location Diameter
      Stage 2 HPT Heatshield Location Diameter	5.735	Clear
      	5.745	0.008
      Stage 1 HPT Hub Location Diameter	5.753	0.028
      	5.763	Clear

      Table 14. Fits and Clearances (all dimensions are in millimeters)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1515
      Stage 2 HPT Heatshield ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-020), Location Diameter
      Stage 1 HPT Hub HPT Stage 1 Hub (72-45-11, 01-011), Location Diameter
      Stage 2 HPT Heatshield Location Diameter	145.669	Clear
      	145.923	0.203
      Stage 1 HPT Hub Location Diameter	146.126	0.711
      	146.380	Clear

9. SUBTASK 72-45-00-220-056 Reference the Fits and Clearances of the HP Turbine Rotor and Stator Assembly at Location 1552

   NOTE

   The fit at this location has been calculated. Parts were measured before they were assembled to get this fit. Refer to TASK 72-45-10-440-001-A00 (ASSEMBLY, CONFIG-001).

   1. Refer to Figure.

10. SUBTASK 72-45-00-220-059 Reference the Fits and Clearances of the HP Turbine Rotor and Stator Assembly at Location 1577

    1. Refer to Figure.

    2. Reference the clearance at location 1577. If required use the data written as a note in TASK 72-45-32-200-000 (INSPECTION-000) and TASK 72-45-20-200-000 (INSPECTION/CHECK-000).

       Table 15. Fits and Clearances (all dimensions are in inches)

       	NEW PART		WORN PART
       	DIMENSIONS		DIMENSIONS
       PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
       LOCATION 1577
       Stage 2 Turbine Rotor Assembly
       Seal Tip Radial Clearance	0.022
       	0.068
       NOTE Axis of turbine case and vane assembly is 0.010 below the engine centerline.

       Table 16. Fits and Clearances (all dimensions are in millimeters)

       	NEW PART		WORN PART
       	DIMENSIONS		DIMENSIONS
       PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
       LOCATION 1577
       Stage 2 Turbine Rotor Assembly
       Seal Tip Radial Clearance	0.56
       	1.73
       NOTE Axis of the turbine case and vane assembly is 0.254 below the engine centerline.

11. SUBTASK 72-45-00-220-060 Reference the Fits and Clearances of the HP Turbine Rotor and Stator Assembly at Location 1578

    1. Refer to Figure.

    2. Reference the clearance at location 1578. If required use the data written as a note in TASK 72-45-14-200-000 (INSPECTION-000) and TASK 72-45-20-200-000 (INSPECTION/CHECK-000).

       Table 17. Fits and Clearances (all dimensions are in inches)

       	NEW PART		WORN PART
       	DIMENSIONS		DIMENSIONS
       PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
       LOCATION 1578
       Stage 1 Turbine Rotor Assembly
       Seal Tip Radial Clearance	0.032
       	0.072
       NOTE Axis of the turbine case and vane assembly is 0.010 below the engine centerline.

       Table 18. Fits and Clearances (all dimensions are in millimeters)

       	NEW PART		WORN PART
       	DIMENSIONS		DIMENSIONS
       PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
       LOCATION 1578
       Stage 1 Turbine Rotor Assembly
       Seal Tip Radial Clearance	0.81
       	1.83
       NOTE Axis of the turbine case and vane assembly is 0.254 below the engine centerline.

12. SUBTASK 72-45-00-220-061 Reference the Fits and Clearances of the HP Turbine Rotor and Stator Assembly at Location 1579

    1. Refer to Figure.

    2. Reference the clearance at location 1579. If required use the data written as a note in TASK 72-45-00-200-000 (INSPECTION-000) and Measure the stage 2 vane inner honeycomb seal diameter. To find the clearance subtract the stage 2 knife-edge seal diameter from the stage 2 vane inner honeycomb seal diameter.

       Table 19. Fits and Clearances (all dimensions are in inches)

       	NEW PART		WORN PART
       	DIMENSIONS		DIMENSIONS
       PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
       LOCATION 1579
       Stage 2 HPT Airseal Tip Radial Clearance
       	Clear		Clear
       	0.026		0.024
       	0.063		0.073
       	Clear		Clear
       NOTE Axis of the turbine case and vane assembly is 0.010 below the engine centerline.

       Table 20. Fits and Clearances (all dimensions are in millimeters)

       	NEW PART		WORN PART
       	DIMENSIONS		DIMENSIONS
       PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
       LOCATION 1579
       Stage 2 HPT Airseal Tip Radial Clearance
       	Clear		Clear
       	0.66		0.61
       	1.60		1.854
       	Clear		Clear
       NOTE Axis of the turbine case and vane assembly is 0.254 below the engine centerline.

13. SUBTASK 72-45-00-430-051-001 Find the Thickness of the Spacer (Dimension AD) (Pre SBE 72-0075)

    1. Refer to Figure and Figure.

    2. Find dimension AC by these steps:

       1. Get dimension AA from the stage 1 turbine rotor assembly paperwork.

       2. Get dimension AB from the face of the rear flange (smaller OD) of the stage 2 HP turbine airseal. Write dimension AB on the assembly paperwork.

          NOTE

          You must inspect the stage 2 HP turbine airseal for bore axial position before you install it again. Refer to .

       3. Add dimension AA to dimension AB to get dimension AC. Write dimension AC on the HP Turbine Rotor And Stator Assembly paperwork.

    3. Get dimension AE from the Stage 2 Turbine Rotor Assembly paperwork.

    4. Subtract dimension AE from dimension AC to get dimension AF. Dimension AF minus 0.004 in. (0.102 mm) is the spacer thickness, dimension AD, plus or minus 0.001 in. (0.025 mm). Write this dimension on the HP Turbine Rotor And Stator Assembly paperwork.

    5. Use the table to find the correct class of the spacer HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-061 thru 01-070), Figure.

14. SUBTASK 72-45-00-430-051-002 Find the Thickness of the Spacer (Dimension AD) (SBE 72-0075)

    1. Refer to Figure and Figure.

    2. SBE 72-0075: Recontoured stage 1 and stage 2 hubs.

    3. Find dimension AC by these steps:

       1. Get dimension AA from the Stage 1 Turbine Rotor Assembly paperwork.

       2. NOTE

          You must inspect the Stage 2 HP Turbine airseal for bore axial position before you install it again. Refer to (INSPECTION/CHECK-000).

          Get dimension AB from the face of the rear flange (smaller OD) of the Stage 2 HP Turbine airseal. Write dimension AB on the assembly paperwork.

       3. Add dimension AA to dimension AB to get dimension AC. Write dimension AC on the HP Turbine Rotor And Stator Assembly paperwork.

    4. Find the dimension AE.

       1. NOTE

          When you measure this dimension, no space is permitted between the Stage 2 HPT Heatshield and the outer diameter of the hub.

          Measure dimension AE. This dimension is from the front of the Stage 2 HPT Heatshield to the front outer face of the stage 2 hub.

       2. Write dimension AE on the HP Turbine Rotor And Stator Assembly paperwork.

    5. Find the No. 4 bearing spacer HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-061 thru HP Turbine (HPT) Rotor And Stator Assembly 01-070) thickness and get the correct class.

       1. Subtract dimension AE from dimension AC to get dimension AF.

       2. Subtract 0.005 in. (0.127 mm) from dimension AF to get dimension AD.

       3. Dimension AD plus or minus 0.001 in. (0.025 mm) is the spacer thickness.

       4. Write dimension AD on the HP turbine rotor and stator assembly paper work.

    6. Use dimension AD and make a selection from the table given in Figure for the No. 4 bearing spacer class.

    7. NOTE

       This procedure is not necessary if the engine number is marked on the spacer.

       Mark V and the four numbers (V-XXXX) of the engine number on the spacer adjacent to the part number. Use the vibration peen method. Refer to SPM TASK 70-09-00-400-501.

15. SUBTASK 72-45-00-430-067 Find the locations for the stack of the stage 1 turbine rotor assembly, the stage 2 HP turbine airseal and the stage 2 turbine rotor assembly.

    1. Calculate the location and quantity of the unbalance result when the stage 1 turbine rotor assembly unbalance mark is 180 degrees from the unbalance mark on the stage 2 turbine rotor assembly.

    2. Find the index location for a vector stack of the stage 2 HP turbine airseal in relation to the stage 1 turbine rotor assembly. Adjust the index location on the stage 2 HP turbine airseal to get the nearest anti-rotation tab to engage with the stage 1 turbine rotor assembly.

       NOTE

       This is done to hold the calculated unbalance at a minimum.

    3. Make a temporary mark on the stage 2 HP Turbine Airseal and on the Stage 1 Turbine Rotor Assembly. Refer to SPM TASK 70-09-00-400-501.

16. SUBTASK 72-45-00-430-052-A01 Install the Stage 2 HP Turbine Airseal

    1. Refer to Figure, Figure and Figure.

    2. NOTE

       If 10 or more of the Stage 2 HPT vane ring inner segments (72-45-24, 02-120) or (72-45-24, 02-320) have new honeycomb, the stage 2 air seal must be new or have the knife-edge coating applied again by VRS3209 (REPAIR-003) to prevent cracks in the knife-edges.

       Put the stage 2 HP turbine airseal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080) on a workbench with the larger OD flange up.

    3. Install the seal in to the smaller groove on the airseal. Hold the seal in grooves with CoMat 01-573 WAX BLEND, PARAFFIN. Do a check of the end gap. Refer to Figure.

    4. With the Stage 1 HP Turbine Rotor Assembly installed on to the IAE 1P16140 Support base, lift the IAE 1P16038 Heater 1 off and install on to the rear of the rotor assembly.

    5. Connect the heater to the IAE 6F10027 Heater control unit 1 off. Heat the rotor assembly to a temperature of 300 deg F (149 deg C) maximum.

    6. Remove the heater and the control and install the airseal (large OD down) to the rear of the stage 1 rotor assembly with the mark on the airseal aligned with the mark on the rotor. The slots on the rotor assembly must be aligned with the mating lugs on the airseal. Tap the airseal with a mallet until fully installed. Use protective equipment.

17. SUBTASK 72-45-00-430-053 Dimension Check to Make Sure the Airseal is Installed Correctly (SBE 72-0022)

    1. Refer to Figure and Figure.

    2. Measure the distance for dimension AC at four locations of equal distance for the correct installation of the airseal.

       1. These dimensions must be plus or minus 0.001 in. (0.03 mm) of each other.

       2. Dimension must be minus 0.000 in. (0.000 mm) to plus 0.006 in. (0.152 mm) of the recorded dimension AC.

       3. If the dimension is more than 0.006 in. (0.153 mm) of the recorded dimension AC, remove and install the airseal.

18. SUBTASK 72-45-00-430-054 Install the No. 4 Bearing Spacer

    1. Install the applicable class of No. 4 bearing spacer to the ID of the stage 1 HP Turbine Rotor Assembly.

19. SUBTASK 72-45-00-430-055 Set the Stage 1 Turbine Rotor Assembly Build Stand

    1. Refer to Figure and Figure.

    2. Adjust the center adapter on the IAE 1P16028 Build stand 1 off.

       1. NOTE

          Measure the thickness in three locations and average.

          Measure the thickness of the flange of the IAE 1P16052 Spline aligner detail plug, dimension J, Figure.

       2. Add dimension J to 2.293 in. (58.242 mm) to get dimension H.

       3. Adjust the center adapter on the build stand to set dimension H plus or minus 0.005 in. (0.127 mm), Figure.

20. SUBTASK 72-45-00-430-056 Install the Stage 1 Turbine Rotor Assembly with the Airseal to the Build Stand

    1. Refer to Figure and Figure.

    2. Install the detail plug of the IAE 1P16052 Spline aligner 1 off to the ID of the stage 1 turbine rotor assembly at the small end. Thread the lift assembly detail in to the opposite end until the bar is tight against the rear face of the rotor hub.

    3. Attach a hoist to the lift assembly. Lift the stage 1 rotor assembly from the support and install the stage 1 rotor assembly into the IAE 1P16028 Build stand 1 off with the plug detail positioned in to the center adapter on the stand.

    4. Remove the hoist and the lift assembly detail from the rotor assembly.

    5. On the spline plug end face make a mark to show the centerplane location of one of the 14 hub internal slots, Figure.

21. SUBTASK 72-45-00-430-057 Install the HP Turbine Case and Vane Assembly

    1. Refer to Figure.

    2. Attach the IAE 1P16173 Lift sling 1 off to the rear flange of the HP Turbine Case And Vane Assembly. Secure with the spacers and the nuts.

    3. Attach a hoist to the sling and lift the case and vane assembly. Position the assembly over the build stand and the stage 1 HP Turbine Rotor.

    4. 

       CAUTION

       INSTALL THE CASE AND VANE ASSEMBLY CAREFULLY TO PREVENT DAMAGE TO THE KNIFE-EDGE SEALS.

       Lower the case and vane assembly in to position over the Stage 1 Rotor Assembly. Remove the sling and the hoist from the case and vane assembly.

22. SUBTASK 72-45-00-430-058 Install the Wire Seal to the Airseal

    1. Refer to Figure.

    2. Install the wire seal (01-040) to the groove on the rear of the Stage 2 HP Turbine airseal. Do a check of the end gap. Refer to Figure. Apply CoMat 01-573 WAX BLEND, PARAFFIN to secure in place.

23. SUBTASK 72-45-00-430-059 Install the Retaining Fixture to the Stage 2 Turbine Rotor Assembly

    1. Refer to Figure.

    2. Preparation of the IAE 1P16063 Fixture 1 off before installation.

       1. Remove all of the hook assemblies from the fixture.

       2. All the clamp assemblies must be turned 90 degrees and secured in this position.

       3. Position the ring assembly on to the rotor retaining plate inboard of the airseal.

       4. Install one hook assembly and depress to install between the blades, then turn to secure the hook on the blade leading edge. Do the same for three more hook assemblies at 90 degrees distance.

       5. Loosen the wingnuts on the six clamp assemblies and turn the clamps to engage the airseal on the retaining plate. Tighten the six wingnuts on the clamp assemblies.

       6. Install the other hook assemblies to secure the blades.

24. SUBTASK 72-45-00-430-060 Install the Lift Fixture to the Rear of the Stage 2 HP Turbine Rotor

    1. Refer to Figure.

    2. Turn the three jaws on the IAE 1P16017 Lift fixture 1 off inward.

    3. Install the lift fixture to the ID of the Stage 2 Rotor Assembly.

    4. Turn the jaws out to engage the jaws with the groove in the Stage 2 Rotor Assembly. Tighten the hand knobs to hold the jaws in place.

25. SUBTASK 72-45-00-430-061 Install the Stage 2 Turbine Rotor Assembly

    1. Refer to Figure.

    2. Attach a hoist to the lift fixture in the center of the rotor assembly.

    3. Position the rotor assembly over the airseal on the rear of the stage 1 rotor with the unbalance mark on the stage 1 rotor 180 degrees from the unbalance mark on the Stage 2 Rotor.

    4. Align a center line of one of the slots on the Stage 2 Hub with the mark on the plug in the center of the stage 1 rotor and lower the Stage 2 Rotor in to position. Remove the hoist.

26. SUBTASK 72-45-00-430-062 Remove the Lift Fixture

    1. Refer to Figure.

    2. Release the hand knobs and turn jaws in on the lift fixture.

    3. Remove the lift fixture.

27. SUBTASK 72-45-00-430-063 Remove the Retaining Fixture

    1. Refer to Figure.

    2. Loosen the wingnuts on the six clamp assemblies. Turn the clamp assembly feet to disengage the clamps from the retaining plate seal and tighten the wingnuts to hold the clamps in this position.

    3. Loosen the hook assemblies which secure the blades. Turn each hook assembly so the hook will not touch the blades and remove the hook assemblies from the fixture.

    4. Remove the retaining fixture from the Stage 2 Rotor Assembly. Keep the hook assemblies with the fixture.

28. SUBTASK 72-45-00-430-064-A00 Install the Tooling to Position the HP Turbine Rotor and Stator Assembly (Pre SBE 72-0075)

    1. Refer to Figure.

    2. Install the IAE 1P16046 Removal/Installation fixture or IAE 1P16543 Removal/Installation fixture 1 off.

       1. Attach a standard two cable sling to the two hoist rings on the fixture and attach the sling to a hoist.

       2. Release the hand knobs and move the center ring of the fixture to the rear until the flanged end is in line with the front surface of the hub of the fixture. Tighten two of the hand knobs (one in each row) to hold the center ring in this position.

       3. Lift the fixture and install on to the HPT assembly with the offset hole in fixture over the dowel pin in the HPT case flange. Remove the sling and hoist.

       4. Secure the fixture with the two piece ring against the HPT rear flange front face and the large offset hole over the flare of the dowel pin. Hold in position with the 25 bolts and nuts.

       5. Hold the center ring of the fixture and release the hand knobs. Move the center ring of the fixture down until it touches the rear face of the second stage turbine hub.

       6. Remove the sling and the hoist.

    3. Install the IAE 1P16058 Removal/installation jaws assembly 1 off.

       1. Install the four jaws in to the second stage turbine bore.

       2. Move the jaws radially out so the lip on the jaws engage the groove on the hub and the socket head capscrews engage the flange of the fixture center ring.

       3. Install the jaw assembly sleeve in to the jaws to move the jaws out. Align the slots in the sleeve with the large socket head capscrews. Install the sleeve until the flange contacts the jaws.

       4. Secure the jaws to the sleeve with the eight capscrews. Tighten the capscrews.

       5. Measure to see if HPT is in the proper running position.

          1. NOTE

             Dimension must be taken on unbroken part of surface on the hub flange.

             Use a depth vernier to measure the distance from the two machined areas on the fixture to the flange on the HPT rear hub (dimension D), Figure. Turn the rotor, as required, to obtain the correct dimension.

          2. Subtract this dimension D from the dimension marked on the machined surface of the fixture. The result will be the HP turbine assembly running distance. This dimension must be 1.251 in. to 1.271 in. (31.78 mm to 32.28 mm).

          3. You can get this dimension by right or left turns on the center pedestal of the build stand.

          4. With the HP turbine assembly in the correct running position, tighten all the hand knobs on the hub of the fixture to hold this position.

29. SUBTASK 72-45-00-430-064-B00 Install the Tooling to Position the HP Turbine Rotor and Stator Assembly (SBE 72-0075)

    1. Refer to Figure.

    2. SBE 72-0075: Recontoured stage 1 and stage 2 hubs.

    3. Install the IAE 1P16046 Removal/Installation fixture or IAE 1P16543 Removal/Installation fixture 1 off.

       1. Attach a standard two cable sling to the two hoist rings on the fixture and attach the sling to a hoist.

       2. Release the hand knobs and move the center ring of the fixture to the rear until the flanged end is in line with the front surface of the hub of the fixture. Tighten two of the hand knobs (one in each row) to hold the center ring in this position.

       3. Lift the fixture and install on to the HPT assembly with the offset hole in fixture over the dowel pin in the HPT case flange. Remove the sling and hoist.

       4. Secure the fixture with the two piece ring against the HPT rear flange front face and the large offset hole over the flare of the dowel pin. Hold in position with the 25 bolts and nuts.

       5. Hold the center ring of the fixture and release the hand knobs. Move the center ring of the fixture down until it touches the rear face of the second stage turbine hub.

       6. Remove the sling and the hoist.

    4. Install the IAE 1P16058 Removal/installation jaws assembly 1 off.

       1. Install the four jaws in to the second stage turbine bore.

       2. Move the jaws radially out so the lip on the jaws engage the groove on the hub and the socket head capscrews engage the flange of the fixture center ring.

       3. Install the jaw assembly sleeve in to the jaws to move the jaws out. Align the slots in the sleeve with the large socket head capscrews. Install the sleeve until the flange contacts the jaws.

       4. Secure the jaws to the sleeve with the eight capscrews. Tighten the capscrews.

       5. Measure to see if HPT is in the proper running position.

          1. Use a depth vernier to measure the distance from the two machined areas on the fixture to the flange on the HPT rear hub (dimension D), Figure. Turn the rotor, as required, to obtain the correct dimension.

             NOTE

             Dimension must be taken on unbroken part of surface on the hub flange.

          2. Subtract this dimension D from the dimension marked on the machined surface of the fixture. The result will be the HP turbine assembly running distance. This dimension must be 1.194 in. to 1.214 in. (30.33 mm to 30.84 mm).

          3. You can get this dimension by right or left turns on the center pedestal of the build stand.

          4. With the HP Turbine Assembly in the correct running position, tighten all the hand knobs on the hub of the fixture to hold this position.

30. SUBTASK 72-45-00-430-065 Turn the HP Turbine Rotor and Stator Assembly to the Front End Up Position

    1. Refer to Figure and Figure.

    2. Install the shaft detail of the spline aligner to the plug in the center locator of the build stand, Figure.

    3. Attach the scalloped plate detail of the adapter to the center hub of the fixture with the 12 tool bolts. Tighten the bolts. Install the small plate to the center of the scalloped plate, Figure.

    4. Install the washer and the nut details of the spline aligner to the shaft detail. Tighten the nut to hold the rotors together, Figure.

    5. Attach the IAE 1F10052 Two cables sling 1 off with a hoist to the circular spools on the fixture and lift the assembly from the build stand. Turn the HP turbine rotor and stator assembly to the front end up position.

    6. Remove the locator from the center adapter on the build stand. Lower the assembly in to the build stand and remove the sling and the hoist, Figure.

    7. Remove the nut and the washer which secure the spline aligner and remove the spline aligner from the assembly.

31. SUBTASK 72-45-00-430-066 Install the Ladder Lock

    1. Refer to Figure

    2. Install the ladder lock in to the ID of the Stage 1 Turbine Hub and position the lock near its installed position.

    3. Install the IAE 1P16051 Clamp 1 off and the hydraulic cylinder.

       1. Install the clamp with the shaft to the stage 1 turbine hub, Figure.

       2. Install the IAE 1P16047 Hydraulic adapter 1 off over the clamp shaft with the threaded end down and secure with a washer and a nut, Figure.

       3. Attach the IAE 1F10026 Hydraulic hand pump 1 off to the hydraulic cylinder and operate to move the hubs together.

       4. Move the ladder lock down in to the locked position. Make sure the ladder lock slots are aligned on the two huds.

       5. Release the hydraulic pressure and remove the hand pump from the hydraulic cylinder.

       6. Remove the nut and the washer from the bottom of the shaft and remove the hydraulic cylinder.

       7. Remove the clamp with the shaft from the end of the stage 1 HP turbine hub.

32. SUBTASK 72-45-00-430-068 Dimension Check to Make Sure the Spacer is the Correct Thickness

    1. Refer to Figure

    2. Measure the clearance (dimension AG). This dimension must be 0.005 in. (0.127 mm) plus or minus 0.002 in. (0.051 mm). If dimension AG is in limits the turbine is acceptable.

    3. If the dimension AG is not in limits the turbine must be disassembled. Refer to TASK 72-45-00-030-001-A00 (DISASSEMBLY-001).

    4. Do the assembly procedure again.

33. SUBTASK 72-45-00-430-106 Inspect the Blade Tip for Clearances that are too Tight

    NOTE

    A check of the blade tip clearance on the HPT stage 1 and 2 is necessary to inspect for clearances that are too tight.

    1. Refer to Figure

    2. Check the blade tip clearance as follows:

       1. Use a piece of shim stock to measure the clearance under the blade tip to the outer airseal (at the mid-chord location on the blade).

       2. Make this measurement at eight equally-spaced locations.

       3. NOTE

          The rotor is located in the case assembly by the fixture. This gives differences in radial clearance with respect to the final assembly in the engine. Therefore, you should use the average blade tip clearance.

          Find the average of the eight measurements to get the blade tip clearance.

       4. The average clearances must be as follows:

          1. Stage 1 HPT average clearance must not be less than 0.044 in. (1.118 mm) radially.

          2. Stage 2 HPT average clearance must not be less than 0.051 in. (1.295 mm).

       5. Make a record of these clearance measurements in the build records.

       6. If blade tip clearances are less than the requirements, reject the module and check to see if the outer air seal diameter is below minimum or the blade tip is over maximum.

       7. Use the dimensions that follow if the module is rejected for a clearance check:

          1. Stage 1 HPT:

             OAS minimum is 25.370 in. (644.398 mm).

             Blade tip diameter maximum is 25.282 in. (642.163 mm).

          2. Stage 2 HPT:

             OAS minimum is 26.178 in. (664.921 mm).

             Blade tip diameter maximum is 26.076 in. (662.330 mm).

Figure: Pre SBE 72-0075: Dimensions necessary to find the thickness of the spacer

Sheet 1



Legend

Pre SBE 72-0075: Dimensions necessary to find the thickness of the spacer

Sheet 1

Close

Figure: SBE 72-0075: Dimensions necessary to find the thickness of the spacer

Sheet 2



Legend

SBE 72-0075: Dimensions necessary to find the thickness of the spacer

Sheet 2

Close

Figure: Stage 1 HP turbine rotor heater installation

Stage 1 HP turbine rotor heater installation



Figure: Install the stage 2 HP turbine airseal

Install the stage 2 HP turbine airseal



Figure: Stage 1 turbine rotor assembly and airseal

Stage 1 turbine rotor assembly and airseal



Figure: Install the stage 1 turbine rotor assembly and the airseal in to the build stand

Install the stage 1 turbine rotor assembly and the airseal in to the build stand



Figure: Install the HP turbine case and vane assembly

Install the HP turbine case and vane assembly



Figure: IAE 1P16063 retaining fixture installation

IAE 1P16063 retaining fixture installation



Figure: IAE 1P16017 lift fixture installation

IAE 1P16017 lift fixture installation



Figure: Install the stage 2 turbine rotor assembly

Install the stage 2 turbine rotor assembly



Figure: Installation tooling for the HP turbine rotor and stator assembly

Installation tooling for the HP turbine rotor and stator assembly



Figure: Prepare to turn the HP turbine rotor and stator assembly

Prepare to turn the HP turbine rotor and stator assembly



Figure: Turn the HP turbine rotor and stator assembly

Turn the HP turbine rotor and stator assembly



Figure: HP turbine rotor and stator assembly clamp installation

HP turbine rotor and stator assembly clamp installation



Figure: Pre SBE 72-0075: HP turbine rotor and stator assembly - Fits and Clearances

Sheet 1



Legend

Pre SBE 72-0075: HP turbine rotor and stator assembly - Fits and Clearances

Sheet 1

Close

Figure: SBE 72-0075: HP turbine rotor and stator assembly - Fits and Clearances

Sheet 2



Legend

SBE 72-0075: HP turbine rotor and stator assembly - Fits and Clearances

Sheet 2

Close

Figure: Thickness of spacer

Thickness of spacer



Figure: Stage 1 turbine rotor assembly and stage 2 airseal, seal installation

Stage 1 turbine rotor assembly and stage 2 airseal, seal installation



Figure: HP turbine rotor and stator assembly blade tip clearance check

HP turbine rotor and stator assembly blade tip clearance check