Preliminary Requirements

Procedure

1. SUBTASK 72-41-30-220-061 Reference Fits and Clearances of the HP Compressor Front Cases and Vanes at Location 1201 (Pre SBE 70-0052 and SBE 70-0052)

   1. Refer to Figure.

   2. SBE 70-0052: Engine - Additional source for variable stator vane spindle bushings.

   3. Reference dimensions at location 1201. If required use the data written as a note in TASK 72-41-32-200-000 and TASK 72-41-31-200-000.

      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 1201
      VIGV ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-500 And 01-600), Spindle Location In The Pre SBE 70-0052: VIGV Bush ENGINE-HP COMPRESSOR SPLIT CASES (72-41-31, 01-241, 01-242 Or 01-243), Or
      SBE 70-0052: VIGV Bush ENGINE-HP COMPRESSOR SPLIT CASES (72-41-31, 01-241, 01-242, 01-243, 01-245, 01-246 Or 01-247)
      VIGV Spindle Diameter	0.5472
      	0.5492	0.0018
      VIGV Bush Bore	0.5511	0.0050
      	0.5522

      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 1201
      VIGV ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-500 And 01-600), Spindle Location In The Pre SBE 70-0052: VIGV Bush ENGINE-HP COMPRESSOR SPLIT CASES (72-41-31, 01-241, 01-242 Or 01-243), Or
      SBE 70-0052: VIGV Bush ENGINE-HP COMPRESSOR SPLIT CASES (72-41-31, 01-241, 01-242, 01-243, 01-245, 01-246 Or 01-247)
      VIGV Spindle Diameter	13.900
      	13.952	0.048
      VIGV Bush Bore	14.000	0.127
      	14.027

2. SUBTASK 72-41-30-220-064 Reference Fits and Clearances of the HP Compressor Front Cases and Vanes at Location 1205

   1. Refer to Figure.

   2. Reference dimensions at location 1205. If required use the data written as a note in TASK 72-41-32-200-000 and TASK 72-41-33-200-000.

      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 1205
      VIGV ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-500 And 01-600), Spindle
      Location In The Half Bush ENGINE-HP COMPRESSOR VARIABLE VANE INNER SHROUDS (72-41-33, 01-190)
      VIGV Spindle Diameter	0.2709
      	0.2730	0.0025
      Half Bush Bore	0.2756	0.0055
      	0.2765

      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 1205
      VIGV ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-500 And 01-600), Spindle
      Location In The Half Bush ENGINE-HP COMPRESSOR VARIABLE VANE INNER SHROUDS (72-41-33, 01-190)
      VIGV Spindle Diameter	6.881
      	6.993	0.067
      Half Bush Bore	7.000	0.141
      	7.022

3. SUBTASK 72-41-30-220-065 Reference Fits and Clearances of the HP Compressor Front Cases and Vanes at Location 1206

   1. Refer to Figure.

   2. Reference dimensions at location 1206. If required use the data written as a note in TASK 72-41-32-200-000 and TASK 72-41-33-200-000.

      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 1206
      VIGV ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-500 And 01-600), Inner Spindle
      Location In The Half Bush ENGINE-HP COMPRESSOR VARIABLE VANE INNER SHROUDS (72-41-33, 01-190)
      VIGV Inner Spindle Length	5.14027	Intf
      	5.15641	0.00037
      Half Bush Outer Length	5.13104	0.02537
      	5.13990

      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 1206
      VIGV ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-500 And 01-600), Inner Spindle
      Location In The Half Bush ENGINE-HP COMPRESSOR VARIABLE VANE INNER SHROUDS (72-41-33, 01-190)
      VIGV Inner Spindle Length	130.5630	Intf
      	130.9730	0.0095
      Half Bush Outer Length	130.3285	0.6445
      	130.5535

4. SUBTASK 72-41-30-220-066 Reference Fits and Clearances of the HP Compressor Front Cases and Vanes at Location 1208

   1. Refer to Figure.

   2. Reference dimensions at location 1208. If required use the data written as a note in TASK 72-41-32-200-000 and TASK 72-41-33-200-000.

      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 1208
      VIGV ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-500 And 01-600), Inner Spindle
      Location In The Half Bush ENGINE-HP COMPRESSOR VARIABLE VANE INNER SHROUDS (72-41-33, 01-190)
      VIGV Inner Spindle Length	6.059
      	6.064	0.0078
      Half Bush Outer Length	6.072	0.0251
      	6.084

      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 1208
      VIGV ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-500 And 01-600), Inner Spindle
      Location In The Half Bush ENGINE-HP COMPRESSOR VARIABLE VANE INNER SHROUDS (72-41-33, 01-190)
      VIGV Inner Spindle Length	153.902
      	154.032	0.200
      Half Bush Outer Length	154.232	0.640
      	154.542

5. SUBTASK 72-41-30-220-067 Reference Fits and Clearances of the HP Compressor Front Cases and Vanes at Location 1301

   1. Refer to Figure.

   2. Reference dimensions at location 1301. If required use the data written as a note in TASK 72-41-34-200-000.

      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 1301
      VIGV Lever ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-100 And 02-140)
      Location In The Bush ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-460 And 02-560)
      VIGV Lever Pin Diameter	0.2353
      	0.2358	0.0004
      Bush Inner Bore	0.2362	0.0016
      	0.2369

      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 1301
      VIGV Lever ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-100 And 02-140)
      Location In The Bush ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-460 And 02-560)
      VIGV Lever Pin Diameter	5.978
      	5.990	0.01
      Bush Inner Bore	6.000	0.04
      	6.018

6. SUBTASK 72-41-30-220-138 Reference Fits and Clearances of the HP Compressor Front Cases and Vanes at Location 1263 (Pre SBE 70-0052 and SBE 70-0052)

   1. Refer to Figure.

   2. SBE 70-0052: Engine - Additional source for variable stator vane spindle bushings.

   3. Reference dimensions at location 1263. If required use the data written as a note in TASK 72-41-30-200-000 and TASK 72-41-31-200-000.

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

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1263
      Pre SBE 70-0052: VIGV Bush ENGINE-HP COMPRESSOR SPLIT CASES (72-41-31, 01-241, 01-242 Or 01-243), Or SBE 70-0052: VIGV Bush ENGINE-HP COMPRESSOR SPLIT CASES (72-41-31, 01-241, 01-242, 01-243 01-245, 01-246 Or 01-247)
      Location With The Sealing Washer ENGINE-HP COMPRESSOR FRONT CASES AND VANES (72-41-30, 01-100)
      VIGV Bush Inner Flange Thickness	0.055
      	0.058	0.003
      Sealing Washer Thickness	0.049	0.009
      	0.052

      Table 12. Fits and Clearances (all dimensions in millimetres)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1263
      Pre SBE 70-0052: VIGV Bush ENGINE-HP COMPRESSOR SPLIT CASES (72-41-31, 01-241, 01-242 Or 01-243), Or SBE 70-0052: VIGV Bush ENGINE-HP COMPRESSOR SPLIT CASES (72-41-31, 01-241, 01-242, 01-243 01-245, 01-246 Or 01-247)
      Location With The Sealing Washer ENGINE-HP COMPRESSOR FRONT CASES AND VANES (72-41-30, 01-100)
      VIGV Bush Inner Flange Thickness	1.387
      	1.463	0.077
      Sealing Washer Thickness	1.250	0.213
      	1.310

7. SUBTASK 72-41-30-220-139 Reference Fits and Clearances of the HP Compressor Front Cases and Vanes at Location 1359

   1. Refer to Figure.

   2. Reference dimensions at location 1359. If required use the data written as a note in TASK 72-41-34-200-000.

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

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1359
      Upper And Lower VIGV Acutating Rings ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-440 And 02-540)
      Location With The Spacer ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-786 And 02-796)
      Upper And Lower VIGV Actuating Ring Spacer Hole Bore	0.5512	Intf
      	0.5522	0.0009
      Spacer Diameter	0.5517	Clear
      	0.5521	0.0005

      Table 14. Fits and Clearances (all dimensions in millimetres)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1359
      Upper And Lower VIGV Actuating Rings ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-440 And 02-540)
      Location With The Spacer ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-786 And 02-796)
      Upper And Lower VIGV Actuating Ring Spacer Hole Bore	14.000	Intf
      	14.027	0.023
      Spacer Diameter	14.012	Clear
      	14.023	0.015

8. SUBTASK 72-41-30-220-140 Reference Fits and Clearances of the HP Compressor Front Cases and Vanes at Location 1360

   1. Refer to Figure.

   2. Reference dimensions at location 1360. If required use the data written as a note in TASK 72-41-34-200-000.

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

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1360
      VIGV Rig Pin Bracket ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-780 And 02-790)
      Location With The Spacer ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-786 And 02-796)
      VIGV Rig Pin Bracket Spacer Hole Bore	0.3150	Intf
      	0.3158	0.0007
      Spacer Diameter	0.3154	Clear
      	0.3157	0.0004

      Table 16. Fits and Clearances (all dimensions in millimetres)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	Non-select	REJECT IF MORE THAN
      LOCATION 1360
      VIGV Rig Pin Bracket ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-780 And 02-790)
      Location With The Spacer ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-786 And 02-796)
      VIGV Rig Pin Bracket Spacer Hole Bore	8.000	Intf
      	8.022	0.019
      Spacer Diameter	8.010	Clear
      	8.019	0.012

9. SUBTASK 72-41-30-440-070 Assemble the VIGV Actuating Ringsand (Pre SBE 72-0385or SBE 72-0416 and SBE 72-0385or SBE 72-0416)

   1. Refer to Figure and Figure.

   2. SBE 72-0385 or SBE 72-0416: Introduction of revised actuating rings with increased dowel locations.

   3. Install the two centralizing actuating housings ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-680) in to the upper VIGV actuating ring ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-440).

      1. Put the two centralizing actuating housings in to position in the upper VIGV actuating ring.

      2. Install the four bolts ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-682) and washers ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-684) to attach the two centralizing actuating housings to the upper VIGV actuating ring.

      3. Tighten the bolts.

   4. Install the two centralizing actuating housings in to the lower VIGV actuating ring ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-540).

      1. Do Stepto Step to install the two centralizing actuating housings in to the lower VIGV actuating ring.

   5. Pre SBE 72-0084: Install the rig pin location brackets ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-780) on to the upper VIGV actuating ring.

      1. Put the two spacers ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-786) through the two boltholes at the two locations identified C.

      2. Locate the two rig pin location brackets on to the spacers.

      3. Install the four bolts ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-784) and nuts ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-782) to attach the brackets to the upper VIGV actuating ring. Make sure the bolt heads are correctly located against the brackets.

      4. Torque the four nuts to 36 lbfin to 45 lbfin (4.00 Nm to 5.00 Nm).

   6. Install the rig pin location bracket ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-790) on to the lower VIGV actuating ring.

      1. Put the two spacers ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-796) through the two boltholes at the location identified E.

      2. Locate the rig pin location bracket on the spacers.

      3. Install the two bolts ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-794) and nuts ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-792) to attach the bracket to the lower VIGV actuating ring. Make sure the bolt heads are correctly located against the bracket.

      4. Torque the two nuts to 36 lbfin to 45 lbfin (4.00 Nm to 5.00 Nm).

10. SUBTASK 72-41-30-220-143 Measure the VIGV Spindle Bushes Location Bores

    1. Refer to Figure, Figure and Figure.

    2. Set the tools to measure the bushes location bores.

       1. Connect the IAE 1R18277 Air plug gage 1 off to the IAE 1R18280 Air gage unit 1 off. Connect an air supply to the air gage unit.

       2. Open the air supply valve, part of the air gage unit. Make sure the needle on the air supply gage reads between the two red lines.

       3. Set the needles A and B to the two 20 positions on the air gage unit main gage. Use the needle adjusters to set the needles to the required value.

       4. Install IAE 1R18278 Setting ring 1 off on to the air plug gage. Refer to Figure. The two air jets, on the air plug gage, must be approximately in the center of the setting ring bore.

       5. Align the needle C, on the air gage unit gage, to the same value as the needles A or B. Use the flow adjuster to align the needle C.

       6. Remove the setting ring from the air plug gage.

       7. Install IAE 1R18279 Setting ring 1 off on to the air plug gage. The two air jets, on the air plug gage, must be approximately in the center of the setting ring bore.

       8. Align the needle C, on the air gage unit gage, to the same value as the needles A or B. Use the flow adjuster to align the needle C.

       9. Remove the setting ring from the air plug gage.

    3. Measure the VIGV bush location bores.

       1. Install the air gage plug in to the VIGV outer bush location bore at the No. 1 position. Set the two air jets at approximately the center of the bush location bore.

       2. Write a record of the value shown on the air gage unit gage.

       3. Push the air plug gage in to the inner bush location bore. Set the two air jets at approximately the center of the inner bush location bore.

       4. Write a record of the value shown on the air gage unit gage.

          NOTE

          Each location bore must be measured at the same angle to the case center line.

       5. Do Step to Step at the remaining VIGV bush location bores.

11. SUBTASK 72-41-30-440-121-001 Install the VIGV Spindle Bushes using IAE 1R18260 and IAE 1R18295 Bush Assembly Tools (Pre SBE 70-0052 and SBE 70-0052)

    1. Refer to Figure.

    2. SBE 70-0052: Engine - Additional source for variable stator vane spindle bushings

    3. Install the VIGV inner bushes.

       1. Pre SBE 70-0052: From the values written down in Step use the correct size bush.

          Red segment - Fig/item 72-41-31, 01-243.

          Yellow segment - Fig/item 72-41-31, 01-241.

          Black segment - Fig/item 72-41-31, 01-242.

       2. SBE 70-0052: From the values written down in Step use the correct size bush.

          Red segment - Fig/item 72-41-31, 01-243 or 72-41-31, 01-245.

          Yellow segment - Fig/item 72-41-31, 01-241 or 72-41-31, 01-246.

          Black segment - Fig/item 72-41-31, 01-242 or 72-41-31, 01-247.

       3. Use IAE 1R18295 Bushing assembly tool 1 off to install the bushes. Refer to detail A on Figure.

       4. Remove the ring, handle, spacer and nylon washer B from the tool pin.

       5. Install the pin with the nylon washer A in to the VIGV bush location at the No. 1 position. Make sure the nylon washer is correctly located on the HP Compressor Front Case outer surface.

       6. Locate the bush that is to be installed on the pin on the inside of the HP Compressor Front Case.

       7. Install the nylon washer B, spacer, ring and handle on to the pin. Turn the handle until the nylon washer B abuts the bush that is to be installed.

       8. Make sure the bush assembly tool is correctly located and is at 90 degrees to the location bore.

       9. Hold the dowel, then continue to turn the handle to install the bush. Do not let the dowel turn.

       10. When the bush is installed remove the bush assembly tool.

       11. Do Step to Step to install the remaining 39 inner bushes.

    4. Install the VIGV outer bushes.

       1. Pre SBE 70-0052: Select the correct size of bush. Refer to Step.

       2. SBE 70-0052: Select the correct size of bush. Refer to Step.

       3. Use IAE 1R18260 Bushing assembly tool 1 off to install the bushes. Refer to detail B on Figure.

       4. Remove the ring, handle, spacer and nylon washer B from the tool pin.

       5. Locate the bush that is to be installed on to the nylon washer A.

       6. Install the pin, nylon washer A and the bush in to the VIGV location at the No. 1 position. Make sure the bush is correctly located.

       7. Install the nylon washer B, spacer, handle and ring removed in Step.

       8. Turn the handle until the nylon washer B touches the inner bush.

       9. Make sure the bush assembly tool is correctly located and is at 90 degrees to the location bore.

       10. Hold the dowel, then continue to turn the handle to install the bush. Do not let the dowel turn.

       11. When the bush is installed remove the bush assembly tool.

       12. Do Step to Step to install the remaining 39 outer bushes.

12. SUBTASK 72-41-30-440-121-002 Install the VIGV Spindle Bushes using IAE 1R18579, IAE 1R18576, IAE 1R18577, IAE 1R18573 and IAE 1R18582 Bush Assembly Tools (Pre SBE 70-0052 and SBE 70-0052)

    1. Refer to Figure.

    2. SBE 70-0052: Engine - Additional source for variable stator vane spindle bushings

    3. Install the VIGV inner bushes.

       1. Pre SBE 70-0052: From the values written down in Step use the correct size of bush.

          Red segment - Fig/item 72-41-31, 01-243.

          Yellow segment - Fig/item 72-41-31, 01-241.

          Black segment - Fig/item 72-41-31, 01-242.

       2. SBE 70-0052: From the values written down in Step use the correct size of bush.

          Red segment - Fig/item 72-41-31, 01-243 or 72-41-31, 01-245.

          Yellow segment - Fig/item 72-41-31, 01-241 or 72-41-31, 01-246.

          Black segment - Fig/item 72-41-31, 01-242 or 72-41-31, 01-247.

       3. Use the correct installation tool.

          1. For the VIGV long vane bushes ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-500) use IAE 1R18579 Pusher installation tool 1 off. Refer to detail A on Figure.

          2. For the VIGV short vane bushes ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-600) use IAE 1R18576 Pusher installation tool 1 off. Refer to detail B on Figure.

       4. Install the pusher in the VIGV bush location at the No. 1 position. Make sure the pusher is correctly located on the HP Compressor Front Case outer surface.

       5. Put the bush on the pusher on the inside of the HP Compressor Front Case.

       6. Install the IAE 1R18577 Bushing installation tool 1 off, on the pusher.

       7. Install the IAE 1R18573 Cylinder, hydraulic 1 off, on the pusher until the cylinder comes against the bush installation.

       8. 

          CAUTION

          YOU MUST MAKE SURE THE ASSEMBLY TOOL IS CORRECTLY LOCATED AT 90 DEGREES TO THE LOCATION BORE TO PREVENT DAMAGE TO THE HP Compressor Front Case.

          Apply hydraulic pressure to the cylinder until the bush is pushed into the compressor case.

       9. Release the hydraulic pressure and remove the assembly tool.

       10. Do Step to Step again to install the remaining 39 inner bushes.

    4. Install the VIGV outer bushes.

       1. Pre SBE 70-0052: Select the correct size of bush. Refer to Step.

       2. SBE 70-0052: Select the correct size of bush. Refer to Step.

       3. Use the IAE 1R18582 Pusher installation tool 1 off to install the bushes for the VIGV long and short vanes. Refer to detail B on Figure.

       4. Put the bush on the pusher and install the pusher in the VIGV bush location at the No. 1 position. Make sure the bush is correctly located.

       5. Install the IAE 1R18577 Bushing installation tool on the pusher.

       6. Install the IAE 1R18573 Cylinder, hydraulic on the pusher until the cylinder comes against the bush installation.

       7. 

          CAUTION

          YOU MUST MAKE SURE THE ASSEMBLY TOOL IS CORRECTLY LOCATED AT 90 DEGREES TO THE LOCATION BORE TO PREVENT DAMAGE TO THE COMPRESSOR CASE.

          Apply hydraulic pressure to the cylinder until the bush is pushed into the HP Compressor Case.

       8. Release the hydraulic pressure and remove the assembly tool.

       9. Do Step to Step again to install the remaining 39 outer bushes.

13. SUBTASK 72-41-30-440-071 Install the VIGV in the HP Compressor Front Case (Pre SBE 72-0402 and SBE 72-0402)

    1. Refer to Figure and Fig. 72-41-90-990-027.

    2. Pre SBE 72-0402: It is not necessary to lubricate the VIGV locations with CoMat 10-108 HIGH PERFORMANCE PENETRATING LUBRICANT WITH TEFLON (R) during this SUBTASK.

    3. SBE 72-0402: Lubricate the VIGV locations during these assembly operations with CoMat 10-108 HIGH PERFORMANCE PENETRATING LUBRICANT WITH TEFLON (R) as specified in TASK 72-41-30-440-011-A00, SUBTASK 72-41-30-440-208.

    4. Install the 40 sealing washers ENGINE-HP COMPRESSOR FRONT CASES AND VANES (72-41-30, 01-100) on the inner bushes. Make sure the sealing washers are correctly located around the inner bush.

    5. Install the guide vanes in the upper half HP Compressor Front Case.

       1. Temporary mark vane sequence number on each vane before it is installed.

          NOTE

          Do not vibropeen.

          1. Use CoMat 02-363 MARKING PEN.

          2. Refer to SPM TASK 70-09-01-400-501.

       2. NOTE

          Install the two guide vanes ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-600) at the positions 10 and 11.

          Install the 18 guide vanes ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-500) and the two guide vanes ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-600) in to the bushes.

    6. Install the guide vanes in the lower half HP Compressor Front Case.

       NOTE

       There are no short spindled guide vanes installed in the lower half HP Compressor Front Case.

       1. Install the 20 guide vanes ENGINE-HP COMPRESSOR VARIABLE VANES (72-41-32, 01-500) as given in Step and Step.

    7. Measure and write down the guide vane end float.

       1. Put two spacers ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-060) on the spindle of each guide vane.

       2. Install the 40 guide vane actuating levers on the spindles of the guide vanes and in to their locations in the actuating ring.

          1. The two actuating levers ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-140) go at the positions 10 and 11.

          2. The eight actuating levers ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-120) go at the positions 1, 2, 19, 20, 21, 22, 39 and 40.

          3. The 30 actuating levers ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-100) go at the positions 3 to 9, 12 to 18 and 23 to 38.

       3. Install the 40 slave nuts to attach the actuating levers to the guide vanes. Torque the nuts to 85 lbfin to 105 lbfin (10.00 Nm to 12.00 Nm). The nuts that are used must have no run down torque.

          NOTE

          The guide vane actuating levers must be parallel with the casing center line when you torque the nuts. This is the null position.

       4. At each guide vane apply a load at the inner pivot point, to push the guide vane radially out.

       5. Measure and write a record of the end float, dimension A Figure. Measure between the actuating lever and the specified spacers.

          NOTE

          Temporarily mark the actuating levers with their position numbers. These must be the same as the numbers on the guide vanes location.

       6. Remove the 40 slave nuts and actuating levers from the guide vanes.

       7. Install the 40 slave nuts on to the guide vane spindles. Tighten the slave nuts sufficiently to keep the spacers on the guide vane spindles.

14. SUBTASK 72-41-30-440-072 Install the VIGV Upper and Lower Actuating Rings (Pre SBE 72-0402, SBE 72-0402, Pre SBE 72-0385 or SBE 72-0416 and SBE 72-0385 or SBE 72-0416)

    1. Refer to Figure and Figure.

    2. Pre SBE 72-0402: It is not necessary to lubricate the VIGV locations with CoMat 10-108 HIGH PERFORMANCE PENETRATING LUBRICANT WITH TEFLON (R) during this SUBTASK.

    3. SBE 72-0402: Lubricate the VIGV locations during these assembly operations with CoMat 10-108 HIGH PERFORMANCE PENETRATING LUBRICANT WITH TEFLON (R) as specified in TASK 72-41-30-440-011-A00, SUBTASK 72-41-30-440-208.

    4. Pre SBE 72-0385 or SBE 72-0416: Install the upper guide vane actuating ring ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-440) on to the upper half HP Compressor Front Case.

       SBE 72-0385 or SBE 72-0416: Install the upper guide vane actuating ring ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-440) on to the upper half HP Compressor Front Case.

       1. Put the upper guide vane actuating ring in to position on the upper half HP Compressor Front Case.

          NOTE

          Set the upper guide vane actuating ring adjacent to the guide vanes at the positions 3 to 18.

       2. Install two of IAE 1R18423 Rigging pin 4 off or IAE 1R18892 Rigging pin 4 off and one of IAE 1R18248 Rigging pin 2 off or IAE 1R18638 Rigging pin 2 off to attach the actuating ring to the HP Compressor Front Case at the positions X.

       3. Remove the 16 slave nuts from the guide vanes at the positions 3 to 18.

       4. Remove the two spacers from the spindle of each guide vane.

       5. Install two spacers ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-060) to ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-078) on to the spindle of each guide vane at the positions 3 to 18. The thickness of the spacers that are installed are equal to:

          the removed spacer thickness + the end float - 0.003 in. to 0.005 in. (0.08 mm to 0.13 mm).

          Write a record of the thickness of the spacers that are installed.

       6. Install the actuating levers ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-100) and ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-140). Make sure the correct actuating lever goes on the correct guide vane at the positions 3 to 18.

       7. Install the 16 nuts ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-103) and ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-143) on to the guide vanes at the positions 3 to 18.

       8. Remove the three rigging pins and set the guide vane levers at the null position.

       9. Torque the nuts to 85 lbfin to 105 lbfin (10.00 Nm to 12.00 Nm) plus the run down torque.

       10. Measure the guide vane end float at the positions 3 to 18. Make sure it is 0.003 in to 0.005 in. (0.08 mm to 0.13 mm).

    5. Install the lower guide vane actuating ring ACTUATING MECHANISM HP COMPRESSOR VARIABLE VANES (72-41-34, 02-540) on to the lower half HP Compressor Front Case.

       NOTE

       There are no short spindled guide vanes in the lower half HP Compressor Front Case.

       1. Install the lower guide vane actuating ring on to the lower half HP Compressor Front Case at the guide vane positions 23 to 38. Use the procedure given in Step to Step.

       2. To attach the actuating ring to the lower half HP Compressor Front Case use the other two IAE 1R18423 Rigging pin 4 off or IAE 1R18892 Rigging pin 4 off and one IAE 1R18248 Rigging pin 2 off or IAE 1R18638 Rigging pin 2 off. Refer to Figure for the positions of the pins.

15. SUBTASK 72-41-30-440-073 Install the VIGV Shroud (Pre SBE 72-0402, SBE 72-0402, Pre SBE 72-0422 and SBE 72-0422)

    1. Refer to Figure.

    2. SBE 72-0402: HP compressor variable vanes - inlet guide vane and stages 3 to 6 with optimised build and setting instructions.

       SBE 72-0422: HP compressor variable inner shrouds - Introduction of revised one piece bushes

    3. Pre SBE 72-0402 : It is not necessary to lubricate the VIGV locations with CoMat 10-108 HIGH PERFORMANCE PENETRATING LUBRICANT WITH TEFLON (R) during this SUBTASK.

    4. SBE 72-0402 : Lubricate the VIGV locations during these assembly operations with CoMat 10-108 HIGH PERFORMANCE PENETRATING LUBRICANT WITH TEFLON (R) as specified in TASK 72-41-30-440-011-A00, SUBTASK 72-41-30-440-208.

    5. Pre SBE 72-0422: Install the guide vane half shroud and the IAE 1R18250 Split ring assembly 1 off in to the upper half HP Compressor Front Case.

       SBE 72-0422: Install the guide vane half shroud and the IAE 1R19633 Split ring assembly 1 off in to the upper half HP Compressor Front Case.

       1. Pre SBE 72-0422: Apply a thin layer of CoMat 04-007 SILICONE GREASE to the 20 half bushes ENGINE-HP COMPRESSOR VARIABLE VANE INNER SHROUDS (72-41-33, 01-190) outer surface.

       2. SBE 72-0422: Apply a thin layer of CoMat 04-007 SILICONE GREASE to the 20 bushes ENGINE-HP COMPRESSOR VARIABLE VANE INNER SHROUDS (72-41-33, 01-190) outer surface.

          NOTE

          The rear upper half of the guide vane half shroud has four location dowels.

       3. Pre SBE 72-0422: Install the 20 half bushes in to the rear upper half of the guide vane half shroud ENGINE-HP COMPRESSOR VARIABLE VANE INNER SHROUDS (72-41-33, 01-200).

          NOTE

          The rear upper half of the guide vane half shroud has four location dowels.

       4. SBE 72-0422: Install the 20 bushes onto the stator vanes.

       5. Pre SBE 72-0422: Install the guide vanes half shroud and half bushes on to the rear of the guide vanes at the inner pivot point.

       6. SBE 72-0422: Install the guide vanes half shroud on to the rear of the guide vanes at the inner pivot point.

       7. Pre SBE 72-0422: Install one half of IAE 1R18250 Split ring assembly on to the front of the guide vanes at the inner pivot point.

       8. SBE 72-0422: Install one half of IAE 1R19633 Split ring assembly on to the front of the guide vanes at the inner pivot point.

       9. Install the three bolts and nuts, part of the Split Ring Assembly, to attach the Split Ring Assembly to the guide vane half shroud.

       10. Tighten the nuts.

    6. Install the guide vane half shroud and the Split Ring Assembly in the lower half HP Compressor Front Case.

       1. Install the rear lower half of the guide vane half shroud and Split Ring Assembly as given in steps Step to Step.

          NOTE

          The rear lower half of the guide vane half shroud has three location dowels.

Figure: Pre SBE 72-0027: View through the HP Compressor Front Cases

Sheet 1



Legend

Pre SBE 72-0027: View through the HP Compressor Front Cases

Sheet 1

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Figure: SBE 72-0027: View through the HP Compressor Front Cases

Sheet 2



Legend

SBE 72-0027: View through the HP Compressor Front Cases

Sheet 2

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Figure: Locations for the fits and clearances

Locations for the fits and clearances



Figure: Pre SBE 72-0084: Install the centralizing actuating housings

Sheet 1



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Pre SBE 72-0084: Install the centralizing actuating housings

Sheet 1

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Figure: SBE 72-0084: Install the centralizing actuating housings

Sheet 2



Legend

SBE 72-0084: Install the centralizing actuating housings

Sheet 2

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Figure: Details of the air gage unit

Sheet 1



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Details of the air gage unit

Sheet 1

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Figure: Details of the air gage unit

Sheet 2



Legend

Details of the air gage unit

Sheet 2

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Figure: Tools to measure the VIGV location bores

Tools to measure the VIGV location bores



Figure: Tools to install the spindle location bushes

Sheet 1



Legend

Tools to install the spindle location bushes

Sheet 1

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Figure: Tools to install the spindle location bushes

Sheet 2



Legend

Tools to install the spindle location bushes

Sheet 2

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Figure: Position for the variable inlet guide vanes

Position for the variable inlet guide vanes



Figure: Pre SBE 70-0052 and SBE 70-0052: Install the variable inlet guide vanes

Pre SBE 70-0052 and SBE 70-0052: Install the variable inlet guide vanes



Figure: Measure the guide vane end float

Measure the guide vane end float



Figure: The positions for the rigging pins

The positions for the rigging pins