Preliminary Requirements

Procedure

1. SUBTASK 72-45-00-220-117 Reference Fits and Clearances of the Stage 1 Turbine Hub and the Stage 2 HPT Heatshield at Location 1500

   1. Refer to Figure.

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

      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, 01-011), Location Diameter
      Stage 2 HPT Heatshield ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-020), Bore
      Stage 2 Turbine Hub Location Diameter	5.520	Clear		Clear
      	5.524	0.002		0.002
      Stage 2 HPT Heatshield Bore	5.526	0.012		0.012
      	5.532	Clear		Clear

      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, 01-011), Location Diameter
      Stage 2 HPT Heatshield ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-020), Bore
      Stage 2 Turbine Hub Location Diameter	140.208	Clear		Clear
      	140.310	0.050		0.050
      Stage 2 HPT Heatshield Bore	140.360	0.300		0.300
      	140.513	Clear		Clear

2. SUBTASK 72-45-00-220-103-A00 Reference Fits and Clearances of the Stage 1 Turbine Hub and Stage 2 HP Turbine Air Seal at Location 1503 (Pre SBE 72-0207)

   1. Refer to Figure.

   2. Reference 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 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 1503
      Stage 1 Turbine Hub HPT Stage 1 Hub (72-45-11, 01-011), Location Diameter
      Stage 2 HPT Air Seal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080), Location Diameter
      Stage 1 Turbine Hub Location Diameter	18.122	Intf		Intf
      	18.118	0.008		0.008
      Stage 2 HPT Air Seal Location Diameter	18.126	0.000		0.000
      	18.122	Clear		Clear

      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 1503
      Stage 1 Turbine Hub HPT Stage 1 Hub (72-45-11, 01-011), Location Diameter
      Stage 2 HPT Air Seal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080), Location Diameter
      Stage 1 Turbine Hub Location Diameter	460.298	Intf		Intf
      	460.198	0.203		0.203
      Stage 2 HPT Air Seal Location Diameter	460.400	0.000		0.000
      	460.298	Clear		Clear

3. SUBTASK 72-45-00-220-103-B00 Reference Fits and Clearances of the Stage 1 Turbine Hub and Stage 2 HP Turbine Air Seal at Location 1503 (SBE 72-0207)

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

   2. Refer to Figure.

   3. Reference 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, 01-011), Location Diameter
      Stage 2 HPT Air Seal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080), Location Diameter
      Stage 1 Turbine Hub Location Diameter	18.122	Intf		Intf
      	18.118	0.008		0.0085
      Stage 2 HPT Air Seal Location Diameter	18.126	0.000		0.0005
      	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, 01-011), Location Diameter
      Stage 2 HPT Air Seal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080), Location Diameter
      Stage 1 Turbine Hub Location Diameter	460.298	Intf		Intf
      	460.198	0.203		0.216
      Stage 2 HPT Air Seal Location Diameter	460.400	0.000		0.0127
      	460.298	Clear		Clear

4. SUBTASK 72-45-00-220-104-A00 Reference Fits and Clearances of the Stage 2 HP Turbine Air Seal and Stage 2 Turbine Hub at Location 1505 (Pre SBE 72-0145 and Pre SBE 72-0207)

   1. Refer to Figure.

   2. Reference 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 (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 1505
      Stage 2 HPT Air Seal 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, 01-011), Location Diameter
      Stage 2 HPT Air Seal Location Diameter	17.131	Intf		Intf
      	17.135	0.001		0.001
      Stage 2 Turbine Hub Location Diameter	17.134	0.010		0.010
      	17.138	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 1505
      Stage 2 HPT Air Seal 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, 01-011), Location Diameter
      Stage 2 HPT Air Seal Location Diameter	435.127	Intf		Intf
      	435.229	0.025		0.025
      Stage 2 Turbine Hub Location Diameter	435.204	0.254		0.254
      	435.305	Clear		Clear

5. SUBTASK 72-45-00-220-104-B00 Reference Fits and Clearances of the Stage 2 HP Turbine Air Seal and Stage 2 Turbine Hub at Location 1505 (SBE 72-0145 and Pre SBE 72-0207)

   1. Refer to Figure.

   2. SBE 72-0145: Provide New Stage 2 Turbine Rotor Hub with Increased Front Mating Diameter.

   3. Reference clearance 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 (INSPECTION-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 Air Seal 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, 01-011), Location Diameter
      Stage 2 HPT Air Seal Location Diameter	17.131	Clear		Clear
      	17.135	0.011		0.011
      Stage 2 Turbine Hub Location Diameter	17.146	0.019		0.020
      	17.150	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 Air Seal 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, 01-011), Location Diameter
      Stage 2 HPT Air Seal Location Diameter	435.127	Clear		Clear
      	435.229	0.279		0.279
      Stage 2 Turbine Hub Location Diameter	435.509	0.483		0.508
      	435.610	Clear		Clear

6. SUBTASK 72-45-00-220-104-C00 Reference Fits and Clearances of the Stage 2 HP Turbine Air Seal and Stage 2 Turbine Hub at Location 1505 (Pre SBE 72-0145 and SBE 72-0207)

   1. Refer to Figure.

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

   3. Reference 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 (INSPECTION-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 Air Seal 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, 01-011), Location Diameter
      Stage 2 HPT Air Seal Location Diameter	17.131	Intf		Intf
      	17.135	0.001		0.0015
      Stage 2 Turbine Hub Location Diameter	17.134	0.010		0.010
      	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 Air Seal 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, 01-011), Location Diameter
      Stage 2 HPT Air Seal Location Diameter	435.127	Intf		Intf
      	435.229	0.025		0.038
      Stage 2 Turbine Hub Location Diameter	435.204	0.254		0.254
      	435.305	Clear		Clear

7. SUBTASK 72-45-00-220-104-D00 Reference Fits and Clearances of the Stage 2 HP Turbine Air Seal and Stage 2 Turbine Hub at Location 1505 (SBE 72-0145 and SBE 72-0207)

   1. SBE 72-0145: Provide New Stage 2 Turbine Rotor Hub with Increased Front Mating Diameter.

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

   2. Refer to Figure.

   3. Reference clearance 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 (INSPECTION-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 1505
      Stage 2 HPT Air Seal 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, 01-011), Location Diameter
      Stage 2 HPT Air Seal Location Diameter	17.131	Clear		Clear
      	17.135	0.011		0.0105
      Stage 2 Turbine Hub Location Diameter	17.146	0.019		0.020
      	17.150	Clear		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 1505
      STAGE 2 HPT Air Seal 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, 01-011), Location Diameter
      Stage 2 HPT Air Seal Location Diameter	435.127	Clear		Clear
      	435.229	0.279		0.267
      Stage 2 Turbine Hub Location Diameter	435.509	0.483		0.508
      	435.610	Clear		Clear

8. SUBTASK 72-45-00-220-105 Reference Fits and Clearances of the Stage 2 HPT Heat Shield and Stage 1 HPT Hub at Location 1515.

   1. Refer to Figure.

   2. Reference clearance at location 1515. If required, use the data written as a note in TASK 72-45-11-200-001-C00 (INSPECTION-001) and TASK 72-45-31-200-001-C00 (INSPECTION-001).

      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 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 Heat Shield Location Diameter	5.735	Clear		Clear
      	5.745	0.008		0.008
      Stage 1 HPT Hub Location Diameter	5.753	0.028		0.028
      	5.763	Clear		Clear

      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
      Stage 2 HPT Heatshield ENGINE-STAGE 2 TURBINE HUB (72-45-31, 01-020), Location Diameter
      Stage 1 Hub HPT Stage 1 Hub (72-45-11, 01-011), Location Diameter
      Stage 2 HPT Heat Shield Location Diameter	145.669	Clear		Clear
      	145.923	0.203		0.203
      Stage 1 Hub Location Diameter	146.126	0.711		0.711
      	146.380	Clear		Clear

9. SUBTASK 72-45-00-220-106 Reference Fits and Clearances of the Stage 1 HP Turbine Air Seal (Rear) Stage 1 HP Turbine Blade and Stage 1 Turbine Hub at Location 1552

   1. Refer to Figure.

      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-C00 (ASSEMBLY, CONFIG-003).

10. SUBTASK 72-45-00-220-107 Reference Fits and Clearances of the Stage 2 Turbine Rotor Assembly Blade Tip at Location 1575

    1. Refer to Figure.

    2. Measure the clearance at location 1575 after assembly.

       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 1575
       Stage 2 Turbine Rotor Assembly Blade Tip
       Clearance	0.050 To 0.059 Average Clearance
       NOTE Axis of 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 1575
       Stage 2 Turbine Rotor Assembly Blade Tip
       Clearance	1.270 To 1.499 Average Clearance
       NOTE Axis of Turbine Case and Vane Assembly is 0.254 below the engine centerline.

11. SUBTASK 72-45-00-220-108 Reference Fits and Clearances of the Stage 1 Turbine Rotor Assembly Blade Tip at Location 1576

    1. Refer to Figure.

    2. Measure the clearance at location 1576 after assembly.

       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 1576
       Stage 1 Turbine Rotor Assembly Blade Tip
       Clearance	0.030 to 0.061 average clearance
       NOTE Axis Of 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 1576
       Stage 1 Turbine Rotor Assembly Blade Tip
       Clearance	0.760 to 1.550 average clearance
       NOTE Axis Of Turbine Case And Vane Assembly Is 0.254 Below The Engine Centerline.

12. SUBTASK 72-45-00-220-109 Reference Fits and Clearances of the Stage 2 Turbine Rotor Assembly Seal Tip at Location 1577

    1. Refer to Figure.

    2. Reference 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-000).

       Table 21. 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	Clear
       	0.010
       	0.064
       	Clear
       NOTE Axis Of Turbine Case And Vane Assembly Is 0.010 Below The Engine Centerline.

       Table 22. 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	Clear
       	0.254
       	1.626
       	Clear
       NOTE Axis Of Turbine Case And Vane Assembly Is 0.254 Below The Engine Centerline.

13. SUBTASK 72-45-00-220-110 Reference Fits and Clearances of the Stage 1 Turbine Rotor Assembly Seal Tip at Location 1578

    1. Refer to Figure.

    2. Reference 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-000).

       Table 23. 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	Clear
       	0.026
       	0.076
       	Clear
       NOTE Axis Of Turbine Case And Vane Assembly Is 0.010 Below The Engine Centerline.

       Table 24. 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	Clear
       	0.66
       	1.93
       	Clear
       NOTE Axis Of Turbine Case And Vane Assembly Is 0.254 Below The Engine Centerline.

14. SUBTASK 72-45-00-220-111 Reference Fits and Clearances of the Stage 2 HP Turbine Air Seal Tip at Location 1579

    1. Refer to Figure.

    2. Reference 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 25. 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 Air Seal Tip Radial
       Clearance	Clear		Clear
       	0.026		0.026
       	0.063		0.069
       	Clear		Clear
       NOTE Axis Of Turbine Case And Vane Assembly Is 0.010 Below The Engine Centerline.

       Table 26. 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 Air Seal Tip Radial
       Clearance	Clear		Clear
       	0.66		0.66
       	1.60		1.753
       	Clear		Clear
       NOTE Axis Of Turbine Case And Vane Assembly Is 0.254 Below The Engine Centerline.

15. SUBTASK 72-45-00-430-087 Remove the Blade Retainer from the Stage 1 Turbine Rotor Assembly

    1. Refer to Figure.

    2. Remove the IAE 1P17030 Blade retainer 1 off from the rear side of the turbine rotor assembly.

       1. Loosen the clamp nuts and turn the four clamps to the center of the retainer.

       2. Lift the retainer up and remove from the rotor assembly. Put the retainer in storage.

16. SUBTASK 72-45-00-430-088 Find the Thickness of the Spacer (Dimension AD)

    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.

          NOTE

          You must inspect the Stage 2 HP Turbine airseal for bore axial position before you install it again. Refer to TASK 72-45-00-200-000 (INSPECTION/CHECK-000).

       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.

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

    3. Find the dimension AE.

       NOTE

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

       1. 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.

    4. 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.

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

       NOTE

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

    6. Mark V and the five numbers (V-XXXXX) 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.

17. SUBTASK 72-45-00-430-089 Find the Locations for the Stack of the Stage 1 Turbine Rotor Assembly, the Stage 2 HP Air Seal 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.

       NOTE

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

    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.

    3. Make a temporary mark with CoMat 06-073 INK, METAL MARKING on the Stage 2 HPT air seal and on the Stage 1 Turbine Rotor Assembly. Refer to SPM TASK 70-09-00-400-501.

18. SUBTASK 72-45-00-430-090 Install the Stage 2 HPT Air Seal

    NOTE

    If ten or more of the HPT Stage 2 vane ring inner segments HPT Stage 2 Ring Segment And Vane Cluster (72-45-24, 02-120 and/or HPT Stage 2 Ring Segment And Vane Cluster72-45-24, 02-320) have new honeycomb, the stage 2 air seal must be new or have the knife edge coating reapplied (per VRS3209) to prevent knife edge cracking.

    1. Refer to Figure, Figure and Figure.

    2. Put the stage 2 HPT air seal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-080) on a work bench with the larger outer diameter flange up.

    3. Install the stage 1 and 2 seal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-100).

       1. Install the seal in the smaller groove of the air seal.

       2. Hold the seal in position with CoMat 01-573 WAX BLEND, PARAFFIN. Remove the wax that is not necessary.

       3. Do a clearance check between the two ends of the seal.

          1. This dimension must be between 0.030 in. - 0.225 in. (0.8 mm - 5.7 mm).

          2. If necessary cut one end of the seal to get this dimension.

    4. Install the IAE 1P16220 Heater 1 off on the rear side of the stage 1 turbine rotor assembly, Figure.

    5. Connect the IAE 6F10027 Heater control unit 1 off to the heater.

    6. Heat the Stage 1 Turbine Rotor Assembly to a temperature of 300 deg F (149 deg C ) maximum.

    7. Disconnect the heater control and remove the heater.

    8. Install the Stage 2 HPT air seal, Figureand Figure.

       1. Install the larger outer diameter of the air seal on the rear of the stage 1 turbine rotor assembly. Use protective equipment.

          1. Align the ink mark on the air seal with the mark on the rotor assembly.

          2. Make sure the mating lugs on the air seal are aligned in the slots on the rotor assembly.

          3. Lightly hit the air seal with a mallet until the air seal is installed.

19. SUBTASK 72-45-00-430-091 Do a Check to Make Sure the Stage 2 HPT Air Seal is Installed Correctly

    1. Refer to Figure.

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

       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 air seal.

20. SUBTASK 72-45-00-430-092 Install the No. 4 Bearing Spacer

    1. Refer to Figure.

    2. Install the applicable class of No. 4 bearing spacer to the inner diameter of the Stage 1 HP Turbine Rotor Assembly.

21. SUBTASK 72-45-00-430-093 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.

       NOTE

       Measure the thickness in three locations and average.

       1. Measure the thickness of the plug flange at dimension J on the IAE 1P16052 Spline aligner 1 off.

       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.

22. SUBTASK 72-45-00-430-094 Install the Stage 1 Turbine Rotor Assembly with the Airseal to the Build Stand

    1. Refer to Figure and Figure.

    2. Install the plug of the IAE 1P16052 Spline aligner 1 off to the inner diameter of the Stage 1 Turbine Rotor Assembly at the small end. Thread the lift assembly 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. Make a mark on the front surface of the spline plug to show the centerline location of one of the 14 internal slots. Use CoMat 06-073 INK, METAL MARKING. Refer to SPM TASK 70-09-00-400-501, Figure.

23. SUBTASK 72-45-00-430-095 Install the HP Turbine Case and Vane Assembly

    1. Refer to Figure.

    2. Remove the IAE 1P17758 Protective cover 1 off from the rear flange of the case and Vane Assembly.

    3. 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.

    4. 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.

    5. 

       CAUTION

       BE CAREFUL WHEN YOU INSTALL THE CASE AND VANE ASSEMBLY OVER THE STAGE 1 TURBINE ROTOR ASSEMBLY. DAMAGE TO THE KNIFE-EDGE SEALS ON THE STAGE 2 HPT AIR SEAL AND STAGE 1 HPT BLADE TIPS COULD OCCUR.

       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.

24. SUBTASK 72-45-00-430-096 Install the Stage 1 and 2 Seal on the Stage 2 HPT Air Seal

    1. Refer to Figure and Figure.

    2. Install the stage 1 and 2 seal HP Turbine (HPT) Rotor And Stator Assembly (72-45-00, 01-040).

       1. Install the seal in the groove of the air seal.

       2. Hold the seal in position with CoMat 01-573 WAX BLEND, PARAFFIN. Remove the wax that is not necessary.

       3. Do a clearance check between the two ends of the seal.

          1. This dimension must be between 0.030 in. - 0.225 in. (0.8 mm to 5.7 mm).

          2. If necessary cut one end of the seal to get this dimension.

25. SUBTASK 72-45-00-430-097 Install the Retaining Fixture to the Stage 2 Turbine Rotor Assembly

    1. Refer to Figure.

    2. Prepare the IAE 1P16063 Fixture 1 off.

       1. Put the retaining fixture on a work bench with the larger outer diameter up.

       2. Remove all the hook assemblies from the fixture.

       3. Loosen the wing nut on the six clamp assemblies.

       4. Turn the clamp lugs to a horizontal position and tighten the wing nuts.

       5. Position the ring assembly on the inner side of the air seal on the Stage 2 HPT retaining plate.

       6. Install one hook assembly through the ring assembly and push the pin in and turn and position the hook on the leading edge of the blade.

          1. Install and position three hook assemblies 90 degrees apart by the procedure given above.

       7. Loosen the wing nut on the six clamp assemblies.

       8. Turn and position the clamp lugs to below the air seal on the retaining plate and tighten the wing nuts.

       9. Install the hook assemblies that remain by the procedure given in Step.

26. SUBTASK 72-45-00-430-098 Install the Lift Fixture to the Rear of the Stage 2 HP Turbine Rotor

    1. Refer to Figure and Figure.

    2. Turn the three jaws on the IAE 1P17026 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.

27. SUBTASK 72-45-00-430-099 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.

28. SUBTASK 72-45-00-430-100 Remove the Lift Fixture

    1. Refer to Figure.

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

    3. Remove the lift fixture.

29. SUBTASK 72-45-00-430-101 Remove the Retaining Fixture

    1. Refer to Figure.

    2. Push the hook assembly pins in and turn all the hooks 90 degrees from the leading-edge of the blades.

    3. Loosen the wing nut on the six clamp assemblies.

    4. Turn and position the clamp lugs to disengage from the air seals and tighten the wing nuts.

    5. Remove the retaining fixture from the Stage 2 Rotor Assembly and put in storage.

30. SUBTASK 72-45-00-430-102 Install the Tooling to Position the HP Turbine Rotor and Stator Assembly

    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. Loosen the eight 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.

       3. Tighten two of the hand knobs (one in each row) to hold the center ring in this position.

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

       5. Attach the fixture with the two piece ring on the HPT rear flange front surface and the large offset hole over the flare of the dowel pin.

       6. Hold in position with the 25 bolts and nuts.

       7. Hold the center ring of the fixture and loosen the hand knobs.

       8. Move the center ring of the fixture down until it touches the rear surface of the second stage turbine hub.

       9. Remove the sling and the hoist.

    3. Install the IAE IAE 1P17022 Removal/installation jaws assembly 1 off.

       1. Install the four jaws (bolt flange up) in the inner diameter of the Stage 2 Hub.

       2. Move the jaws radially out so the lip on the jaws engage the groove inner diameter of 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. Attach the jaws to the sleeve with the eight capscrews. Tighten the capscrews.

       5. Tighten the large socket head capscrews.

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

          NOTE

          Make sure when you take the measurements that the vernier does not go into the slots that are located on the hub flange.

          1. Measure the distance at from the two machined areas of the fixture to the rear flange of the Stage 2 Hub. Use a depth vernier.

          2. To get dimension D, add the two measurements together and do an average of the total measurement.

          3. Subtract dimension D from the dimension marked on the machined surface of the fixture.

          4. This dimension must be 1.194 in. - 1.214 in. (30.33 mm - 30.84 mm). This is the HP Turbine Assembly running distance.

          5. If necessary, adjust the center pedestal of the build stand to get this running distance dimension.

          6. Tighten the hand knobs on the hub of the fixture to hold the pedestal of the build stand in position.

31. SUBTASK 72-45-00-430-103 Turn the HP Turbine Rotor and Stator Assembly to the Front End Up Position

    1. Refer to Figure and Figure.

    2. Install the shaft of the IAE 1P16047 Hydraulic adapter 1 off into the plug of the spline aligner in the center locator of the build stand, Figure.

    3. Install the scalloped plate of the adapter with the smaller outer diameter down over the threaded shaft.

    4. Attach the plate with the 12 tool bolts and tighten.

    5. Install the small plate of the adapter to the center of the scalloped plate and tighten.

    6. Install the washer and nut of the spline aligner on the threaded rod.

    7. Tighten the nut to hold the rotor assemblies together.

    8. Attach the IAE 1F10052 Two cables sling 1 off to a hoist and to the lifting spools on the fixture, Figure.

    9. Lift and turn the Turbine Rotor And Stator Assembly 180 degrees.

    10. Remove the center adapter from the build stand.

    11. Lower the assembly into the build fixture.

    12. Remove the nut and washer that attaches the spline aligner. Remove the spline aligner.

32. SUBTASK 72-45-00-430-104 Install the Ladder Lock

    1. Refer to Figure.

    2. Install the ladder lock in to the inner diameter 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 end down into the inner diameter of the stage 1 turbine hub.

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

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

       4. Apply a hydraulic load to the adapter to move the two hubs together. Do not release the hydraulic load.

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

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

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

       8. Remove the clamp with the shaft from the end of the Stage 1 HP Turbine Hub.

33. SUBTASK 72-45-00-430-105 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 0.001 in. (0.025 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-B00 (DISASSEMBLY-0001).

    4. Do the assembly procedure again.

Figure: HP Turbine Rotor and Stator Assembly - Fits and Clearances

HP Turbine Rotor and Stator Assembly - Fits and Clearances



Figure: Remove the IAE 1P17030 Blade Retainer

Remove the IAE 1P17030 Blade Retainer



Figure: Dimensions Necessary to Find the Thickness of the Spacer

Dimensions Necessary to Find the Thickness of the Spacer



Figure: Thickness of No. 4 Bearing Spacer

Thickness of No. 4 Bearing Spacer



Figure: Installation of the Stage 2 HPT Air Seal

Installation of the Stage 2 HPT Air Seal



Figure: Stage 1 HP Turbine Rotor Heater Installation

Stage 1 HP Turbine Rotor Heater Installation



Figure: Install the Stage 2 HPT Air Seal

Install the Stage 2 HPT Air Seal



Figure: Stage 1 Turbine Rotor Assembly and Stage 2 HPT Air Seal

Stage 1 Turbine Rotor Assembly and Stage 2 HPT Air Seal



Figure: Install the Stage 1 Turbine Rotor Assembly and the Stage 2 HPT Air Seal in to the Build Stand

Install the Stage 1 Turbine Rotor Assembly and the Stage 2 HPT Air Seal 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 1P17026 Lift Fixture Installation

IAE 1P17026 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