DMC:V2500-A0-72-41-0000-01C-530A-B|Issue No:008|Issue Date:2021-08-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 72-41-00-040-001-B00 HPC Assembly - Disassemble The HPC Cases And Vanes From The Rotor Assembly, Disassembly-001

General

Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.

Apply the approved CoMat 10-058 PENETRATING OIL before the removal of threaded parts and parts with an interference fit. Let the parts soak before removal.

Discard all rubber seal rings, cotter pins and keywashers removed in this procedure.

Remove and discard the CoMat 02-126 LOCKWIRE before any part is disconnected or removed.

Refer to Figure for a sectional view of the HP compressor assembly.

As each item is removed it must be identified with its position on the mini-module.

As each rotor path ring and case is removed it must be put in to IAE 1R18281 Storage rack 1 off.

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

Name	Manufacturer	Part Number / Identification	Quantity
IAE 1R18031 Checking fixture	0AM53	IAE 1R18031	1
IAE 1R18032 Transducer carrier	0AM53	IAE 1R18032	1
IAE 1R18033 Gage mounting plate	0AM53	IAE 1R18033	1
IAE 1R18040 Setting button	0AM53	IAE 1R18040	1
IAE 1R18042 Transducer carrier	0AM53	IAE 1R18042	1
IAE 1R18090 Safety support stand	0AM53	IAE 1R18090	1
IAE 1R18214 Build stand	0AM53	IAE 1R18214	1
IAE 1R18217 Lift fixture	0AM53	IAE 1R18217	1
IAE 1R18220 Holding fixture	0AM53	IAE 1R18220	1
IAE 1R18221 Puller extractor	0AM53	IAE 1R18221	1
IAE 1R18242 Extractor	0AM53	IAE 1R18242	3
IAE 1R18243 Extractor	0AM53	IAE 1R18243	3
IAE 1R18250 Split ring assembly	0AM53	IAE 1R18250	1
IAE 1R18281 Storage rack	0AM53	IAE 1R18281	1
IAE 1R18401 Support stand	0AM53	IAE 1R18401	1
IAE 1R18434 Case extractor	0AM53	IAE 1R18434	3
IAE 1R18441 Lifting adapter	0AM53	IAE 1R18441	1
IAE 1R18514 Measuring sleeve	0AM53	IAE 1R18514	1
IAE 1R18515 Measuring sleeve	0AM53	IAE 1R18515	1
IAE 1R18516 Measuring sleeve	0AM53	IAE 1R18516	1
IAE 1R18517 Measuring sleeve	0AM53	IAE 1R18517	1
IAE 1R18531 Measuring sleeve	0AM53	IAE 1R18531	1
IAE 1R18533 Setting base	0AM53	IAE 1R18533	1
IAE 1R18534 Location ring	0AM53	IAE 1R18534	1
IAE 1R18538 Transducer carrier	0AM53	IAE 1R18538	1
IAE 1R18539 Transducer carrier	0AM53	IAE 1R18539	1
IAE 1R18635 Spanner wrench	0AM53	IAE 1R18635	1
IAE 1R18684 Case extractor	0AM53	IAE 1R18684	1
IAE 1R18693 Support ring	0AM53	IAE 1R18693	1
IAE 1R18701 Indexing plate	0AM53	IAE 1R18701	1
IAE 1R18722 Setting button	0AM53	IAE 1R18722	1
IAE 1R18777 Distance sleeve	0AM53	IAE 1R18777	1
IAE 1R18778 Distance sleeve	0AM53	IAE 1R18778	1
IAE 1R18779 Distance sleeve	0AM53	IAE 1R18779	1
IAE 1R18780 Distance sleeve	0AM53	IAE 1R18780	1
IAE 1R18781 Distance sleeve	0AM53	IAE 1R18781	1
IAE 1R18782 Measuring sleeve	0AM53	IAE 1R18782	1
IAE 1R18783 Measuring sleeve	0AM53	IAE 1R18783	1
IAE 1R18784 Measuring sleeve	0AM53	IAE 1R18784	1
IAE 1R18785 Measuring sleeve	0AM53	IAE 1R18785	1
IAE 1R18786 Distance sleeve	0AM53	IAE 1R18786	1
IAE 1R18787 Measuring sleeve	0AM53	IAE 1R18787	1
IAE 1R18788 Measuring sleeve	0AM53	IAE 1R18788	1
IAE 1R18789 Measuring sleeve	0AM53	IAE 1R18789	1
IAE 1R18790 Measuring sleeve	0AM53	IAE 1R18790	1
IAE 1R18791 Measuring sleeve	0AM53	IAE 1R18791	1
IAE 1R18792 Measuring sleeve	0AM53	IAE 1R18792	1
IAE 1R18827 Extractor	0AM53	IAE 1R18827	3
IAE 1R18831 Support ring	0AM53	IAE 1R18831	1
IAE 1R19406 Extractor	0AM53	IAE 1R19406	6
IAE 1R19407 Extractor	0AM53	IAE 1R19407	3
IAE 1R19633 Split ring assembly	0AM53	IAE 1R19633	1
IAE 1R19633 Split ring assembly	0AM53	IAE 1R19633
Three legged sling	LOCAL	Three legged sling

Consumables, Materials and Expendables

Name	Manufacturer	Part Number / Identification	Quantity	Remark
CoMat 02-126 LOCKWIRE	K6835	CoMat 02-126
CoMat 10-058 PENETRATING OIL	X222X	CoMat 10-058

Spares

NONE

Safety Requirements

NONE

Procedure

1. Refer to Figure, Figure and Figure.
2. 1. Remove the cotter pin and the nut that attach the control rod to the VIGV lower actuating ring.
  2. Remove the control rod and the spacer from the VIGV lower actuating ring.
  3. Remove the cotter pin, nut and bolt which attach the control rod to the crankshaft.
  4. Remove the control rod.
3. 1. Remove the nut and bolt which attach the control rod to the connector on the lower stage 3 actuating ring.
  2. Remove the cotter pin, nut, bolt, washer and the two spacers which attach the control rod to the crankshaft.
  3. Remove the control rod.
4. 1. Remove the nut and bolt which attach the control rod to the connector on the lower stage 4 actuating ring.
  2. Remove the cotter pin, nut, bolt, washer and two spacers which attach the control rod to the crankshaft.
  3. Remove the control rod.
5. 1. Remove the nut and bolt which attach the control rod to the connector on the lower stage 5 actuating ring.
  2. Remove the cotter pin, nut, bolt, washer and two spacers which attach the control rod to the crankshaft.
  3. Remove the control rod.
6. 1. Remove nut, washer, and bolt which attach the control rod to the crankshaft.
  2. Remove nut, washer, and bolt which attach the control rod to the actuator arm.
  3. Remove the control rod.
7. 1. Remove the two bolts and nuts which attach the bearing housing support to the front bearing housing.
  2. Remove the two bolts and washers which attach the bearing housing support to the rear bearing housing.
  3. Remove the bearing housing support.
8. 1. Remove the four bolts and nuts which attach the stage 5 crank lever to the crankshaft.
  2. Remove the stage 5 crank lever.
9. 1. Remove the two nuts and bolts which attach the stage 4 crank lever to the crankshaft.
  2. Remove the stage 4 crank lever.
10. 1. Remove the four bolts and two nuts which attach the stage 3 and VIGV crank levers to the crankshaft.
  2. Remove the stage 3 and VIGV crank levers.
11. 1. Remove the two bolts which attach the front bearing housing and the bracket to the HP compressor front case.
  2. Remove the two bolts which attach the rear bearing housing to the HP compressor front case.
  3. Remove the crankshaft from the HP compressor front case.
  4. Remove the rear bearing housing from the crankshaft.
12. 1. Release the two locknuts which secure the control rod bearings on the VIGV control rod.
    NOTE
    One of the control rod bearings and locknuts has a left hand thread.
  2. Remove the two control rod bearings, two washers and the two locknuts from the VIGV control rod.
  3. Disassemble the stage 3 to 5 control rods as given in steps Step and Step.
1. SBE 72-0366: Actuating mechanism HPC variable vanes - introduction of a revised crankshaft assembly
2. Refer to Figure, Figure and Figure.
3. 1. Remove the cotter pin and the nut that attach the control rod to the VIGV lower actuating ring.
  2. Remove the control rod and the spacer from the VIGV lower actuating ring.
  3. Remove the cotter pin, nut, washer, two spacers and the bolt which attach the control rod to the crankshaft.
  4. Remove the control rod.
4. 1. Remove the nut and bolt which attach the control rod to the connector on the lower stage 3 actuating ring.
  2. Remove the cotter pin, nut, bolt, washer and the two spacers which attach the control rod to the crankshaft.
  3. Remove the control rod.
5. 1. Remove the nut and bolt which attach the control rod to the connector on the lower stage 4 actuating ring.
  2. Remove the cotter pin, nut, bolt, washer and two spacers which attach the control rod to the crankshaft.
  3. Remove the control rod.
6. 1. Remove the nut and bolt which attach the control rod to the connector on the lower stage 5 actuating ring.
  2. Remove the bolt and washer which attach the retaining pin to the crankshaft and remove the retaining pin which attaches the control rod to the stage 5 crank lever.
  3. Remove the control rod.
7. 1. Remove nut, washer, and bolt which attach the control rod to the crankshaft.
  2. Remove nut, washer, and bolt which attach the control rod to the actuator arm.
  3. Remove the control rod.
8. 1. Remove the two bolts and nuts which attach the bearing housing support to the front bearing housing.
  2. Remove the two bolts and washers which attach the bearing housing support to the rear bearing housing.
  3. Remove the bearing housing support.
9. 1. Remove the two nuts and bolts which attach the stage 4 crank lever to the crankshaft.
  2. Remove the stage 4 crank lever.
10. 1. Remove the two bolts which attach the front bearing housing and the bracket to the HP compressor front case.
  2. Remove the two bolts which attach the rear bearing housing to the HP compressor front case.
  3. Remove the crankshaft from the HP compressor front case.
  4. Remove the rear bearing housing from the crankshaft.
11. 1. Release the two locknuts which secure the control rod bearings on the VIGV control rod.
    NOTE
    One of the control rod bearings and locknuts has a left hand thread.
  2. Remove the two control rod bearings, two washers and the two locknuts from the VIGV control rod.
  3. Disassemble the stage 3 to 5 control rods as given in Step and Step.
1. Refer to Figure, Figure and Figure.
2. 1. Remove the cotter pin and the nut that attach the control rod to the VIGV lower actuating ring.
  2. Remove the control rod and the spacer from the VIGV lower actuating ring.
  3. Remove the cotter pin, nut and bolt which attach the control rod to the crankshaft.
  4. Remove the control rod.
3. 1. Remove the nut and bolt which attach the control rod to the connector on the lower stage 3 actuating ring.
  2. Remove the cotter pin, nut, bolt, washer and the two spacers which attach the control rod to the crankshaft.
  3. Remove the control rod.
4. 1. Remove the nut and bolt which attach the control rod to the connector on the lower stage 4 actuating ring.
  2. Remove the cotter pin, nut, bolt, washer and two spacers which attach the control rod to the crankshaft.
  3. Remove the control rod.
5. 1. Remove the nut and bolt which attach the control rod to the connector on the lower stage 5 actuating ring.
  2. Remove the bolt, washer and retaining pin which attach the control rod to the crankshaft.
  3. Remove the control rod.
6. 1. Remove nut, washer, and bolt which attach the control rod to the crankshaft.
  2. Remove nut, washer, and bolt which attach the control rod to the actuator arm.
  3. Remove the control rod.
7. 1. Remove the two bolts and nuts which attach the bearing housing support to the front bearing housing.
  2. Remove the two bolts and washers which attach the bearing housing support to the rear bearing housing.
  3. Remove the bearing housing support.
8. 1. Remove the two nuts and bolts which attach the stage 4 crank lever to the crankshaft.
  2. Remove the stage 4 crank lever.
9. 1. Remove the four bolts and two nuts which attach the stage 3 and VIGV crank levers to the crankshaft.
  2. Remove the stage 3 and VIGV crank levers.
10. 1. Remove the two bolts which attach the front bearing housing and the bracket to the HP compressor front case.
  2. Remove the two bolts which attach the rear bearing housing to the HP compressor front case.
  3. Remove the crankshaft from the HP compressor front case.
  4. Remove the rear bearing housing from the crankshaft.
11. 1. Release the two locknuts which secure the control rod bearings on the VIGV control rod.
    NOTE
    One of the control rod bearings and locknuts has a left hand thread.
  2. Remove the two control rod bearings, two washers and the two locknuts from the VIGV control rod.
  3. Disassemble the stage 3 to 5 control rods as given in Step and Step.
1. Refer to Figure, Figure, Figure and Figure.
2. 1. Remove the nut, spacer and bolt which attach the control rod to the VIGV lower actuating ring.
  2. Remove the cotter pin, nut, three spacers and bolt which attach the control rod to the crankshaft.
  3. Remove the control rod.
3. 1. Remove the nut, two spacers and bolt which attach the control rod to the drive brackets on the lower stage 3 actuating ring.
  2. Remove the cotter pin, nut, bolt and three spacers which attach the control rod to the crankshaft.
  3. Remove the control rod.
4. 1. Remove the nut, two spacers and bolt which attach the control rod to the drive brackets on the lower stage 4 actuating ring.
  2. Remove the cotter pin, nut, bolt, washer and two spacers which attach the control rod to the crankshaft.
  3. Remove the control rod.
5. 1. Remove the nut, two spacers and bolt which attach the control rod to the drive brackets on the lower stage 5 actuating ring.
  2. Remove the bolt, washer, two spacers and retaining pin which attach the control rod to the crankshaft.
  3. Remove the control rod.
6. 1. Remove nut, washer and bolt which attach the control rod to the crankshaft.
  2. Remove nut, washer and bolt which attach the control rod to the actuator arm.
  3. Remove the control rod.
7. 1. Remove the two bolts and two nuts which attach the bearing housing support to the front bearing housing.
  2. Remove the two bolts, two washers and two nuts which attach the bearing housing support to the rear bearing housing.
  3. Remove the bearing housing support.
8. 1. Remove the two bolts and bracket which attach to the front bearing housing and HP compressor front case.
  2. Remove the two bolts which attach the rear bearing housing and HP compressor front case.
  3. Remove the crankshaft from HP compressor front.
  4. Remove the rear bearing housing from the crankshaft.
9. 1. Release the two locknuts which secure the control rod bearings on the VIGV control rod.
    NOTE
    One of the control rod bearings and locknuts has a left hand thread.
  2. Remove the two control rod bearings, two washers and the two locknuts from the VIGV control rod.
  3. Disassemble the stage 3 to 5 and actuating control rods as given in Step and Step.
1. 1. SBE 72-0385 or SBE 72-0416: Introduction of revised actuation ring connectors and unison ring assemblies.
2. 1. Remove the four nuts which attach the actuating levers to the inlet guide vanes at the positions 1, 2, 39 and 40.
  2. Remove the four actuating levers from the four inlet guide vanes.
    Pre SBE 72-0385 or SBE 72-0416: Remove the four bolts and the four hollow dowels which attach the right hand connector to the upper and lower actuating rings.
    SBE 72-0385 or SBE 72-0416: Remove the four bolts and washers which attach the right hand connector to the upper and lower actuating rings.
  3. Remove the right hand connector.
  4. Temporarily install the four nuts and the four actuating levers, removed in Step and Step on the inlet guide vanes at the positions 1, 2, 39 and 40.
  5. Remove the left hand connector as given in steps A.(1) to (6). The left hand connector is adjacent to inlet guide vanes at the positions 19 to 22.
3. 1. Remove the four bolts which attach the two connector housings to the right hand connector.
  2. Remove the two connector housings and the adjusting washers from the right hand connector.
  3. Remove the two connector housings from the left hand connector as given in Step and Step.
1. Refer to Figure and Figure.
2. Remove the protective cover, if installed, from the rear of the HP compressor assembly.
3. 1. Use a suitable hoist and three legged sling and lift the lift fixture on to the rear of the HP compressor assembly. Carefully lower the lift fixture to the HP compressor shaft and the compressor rear outer case.
  2. Remove the hoist and three legged sling.
  3. Adjust the position of the thumbscrews so that the frame touches the compressor rear outer case rear flange.
  4. Install the six bolts, the 12 washers and the six nuts to attach the lift fixture to the compressor rear outer case.
  5. Tighten the six nuts.
4. 1. Put the lifting adapter on the end of the compressor shaft.
  2. Turn the lifting adapter clockwise to install it on the compressor shaft.
  3. Continue to turn the lifting adapter until:
    The location pin is clear of the sleeve and.
    The lifting adapter is tight on the compressor shaft.
  4. Tighten the lockscrew in the lifting adapter. Make sure the lockscrew goes in a slot on the end of the compressor shaft. If the lockscrew does not go in a slot, turn the lifting adapter counter-clockwise until the lockscrew goes in the first available slot.
  5. Turn the sleeve until a hoist can be attached to the lift eye.
1. Refer to Figure.
2. Attach a suitable hoist to the lifting adapter on the HP compressor assembly.
3. Adjust the hoist until it almost holds the weight of the HP compressor assembly.
4. Remove the six bolts which attach the HP compressor assembly to the support ring on the IAE IAE 1R18214 Build stand 1 off.
5. Use the hoist installed in step A and vertically lift the HP compressor assembly from the build stand.
  NOTE
  Do not remove the hoist.
6. Install the HP compressor assembly on IAE 1R18090 Safety support stand 1 off. Only lower the HP compressor assembly sufficiently until it is on the safety support stand.
1. 1. SBE 72-0410: HP compressor variable inner shrouds - Introduction of revised one piece bushes.
2. Remove the 20 nuts, the 40 dee-headed washers and the 20 bolts that attach the VIGV front shroud to the VIGV.
  NOTE
  Keep the VIGV front shroud with the HP compressor front cases.
3. 1. Pre SBE 72-0410: Install IAE 1R18250 Split ring assembly 1 off.
  2. SBE 72-0410: Install IAE 1R19633 Split ring assembly 1 off.
  3. Install one half of the split ring assembly on the front of the VIGV's. Make sure that the split line is aligned with the split line in the VIGV rear shroud.
  4. Install the three tool bolts and the three tool nuts.
  5. Tighten the nuts to safety the split ring assembly.
  6. Do Step thru Step again for the other half of the split ring assembly.
1. Refer to Figure and Figure.
2. Use the hoist installed in Step and lift the HP compressor assembly from the safety support stand.
3. 1. Align the location pins in the support ring with the two holes in the HP compressor front case front flange.
  2. Align the six bolt holes in the support ring with six bolt holes in the HP compressor front case front flange.
  3. Install the six bolts through the aligned holes.
  4. Tighten the six bolts.
1. Refer to Figure and Figure.
2. 1. Turn the sleeve until the lockscrew can be released.
  2. Release the lockscrew from the slot in the compressor shaft.
  3. Turn the lifting adapter counter-clockwise until it can be lifted from the compressor shaft.
  4. Remove the lifting adapter from the compressor shaft.
3. 1. Install a suitable hoist and three legged sling on the lift fixture.
  2. Remove the six nuts, the 12 washers and the six bolts which attach the lift fixture to the compressor rear outer case.
  3. Use a hoist and three legged sling and carefully remove the lift fixture from the HP compressor assembly.
1. 1. SBE 72-0385 or SBE 72-0416: Introduction of revised actuation ring connectors and unison ring assemblies.
2. 1. Pre SBE 72-0385 or SBE 72-0416: Remove the five bolts and the five hollow dowels which attach the right hand connector to the upper and lower actuating rings.
  2. SBE 72-0385 or SBE 72-0416: Remove the five bolts and washers which attach the right hand connector to the upper and lower actuating rings.
  3. Remove the right hand connector.
    Pre SBE 72-0385 or SBE 72-0416: Remove the four bolts and the four hollow dowels which attach the left hand connector to the upper and lower actuating rings.
    SBE 72-0385 or SBE 72-0416: Remove the four bolts and washers which attach the left hand connector to the upper and lower actuating rings.
  4. Remove the left hand connector.
3. 1. Remove the four bolts which attach the two connector housings to the right hand connector.
  2. Remove the two connector housings and the adjusting washers from the right hand connector.
  3. Remove the two connector housings from the left hand connector as given in Step and Step.
1. 1. SBE 72-0348: Introduction of revised actuation ring connectors.
  2. SBE 72-0385or SBE 72-0416: Introduction of revised actuation ring connectors and unison ring assemblies.
2. 1. Pre SBE 72-0348: Remove the four bolts and the four hollow dowels which attach the right hand connector to the upper and lower actuating rings.
  2. Pre SBE 72-0385 or SBE 72-0416: Remove the four bolts and the four washers which attach the right hand connector to the upper and lower actuating rings.
  3. SBE 72-0348: Remove the four bolts and four washers which attach the right hand connector to the upper and lower actuating rings.
  4. SBE 72-0385 or SBE 72-0416: Remove the four bolts and two washers which attach the right hand connector to the upper and lower actuating rings.
  5. Remove the right hand connector.
  6. Remove the left hand connector as given in steps A.(1) and (5).
3. 1. Remove the four bolts and four washers which attach the two connector housings to the right hand connector.
  2. Remove the two connector housings and the adjusting washers from the right hand connector.
  3. Remove the two connector housings from the left hand connector as given in Step and Step.
1. 1. SBE 72-0348: Introduction of revised actuation ring connectors.
  2. SBE 72-0385or SBE 72-0416: Introduction of revised actuation ring connectors and unison ring assemblies.
2. 1. Pre SBE 72-0348: Remove the four bolts and the four hollow dowels which attach the right hand connector to the upper and lower actuating rings.
  2. Pre SBE 72-0385 or SBE 72-0416: Remove the four bolts and the four washers which attach the right hand connector to the upper and lower actuating rings.
  3. SBE 72-0348: Remove the four bolts and four washers which attach the right hand connector to the upper and lower actuating rings.
  4. SBE 72-0385 or SBE 72-0416: Remove the four bolts and two washers which attach the right hand connector to the upper and lower actuating rings.
  5. Remove the right hand connector.
  6. Remove the left hand connector as given in steps A.(1) and (4).
3. 1. Remove the four bolts and four washers which attach the two connector housings to the right hand connector.
  2. Remove the two connector housings and the adjusting washers from the right hand connector.
  3. Remove the two connector housings from the left hand connector as given in Step and Step.
1. Refer to Figure.
2. Put IAE 1R18220 Holding fixture 1 off on the compressor rear outer case and the HP compressor shaft.
3. Adjust the positions of the three pushers until the holding fixture touches the compressor rear outer case.
4. Align the four holes in the flange of the holding fixture with four bolt holes in the outer flange of the compressor rear outer case.
5. Install the four screws, the four washers and the four nuts, part of the holding fixture. These attach the holding fixture to the compressor rear outer case.
6. Tighten the four nuts.
1. Refer to Figure, Figure, Figure, Figure, Figure and Figure.
2. Remove the 54 nuts and bolts and the brackets from the HP compressor front case to compressor rear outer case flange.
3. CAUTION
  THE SPLIT LINE BOLTS ARE A CLOSE TOLERANCE FIT AND MUST NOT BE TURNED DURING THEIR REMOVAL.
  Remove the two nuts and the two bolts which attach the upper and lower support brackets at the HP compressor front case right hand split line.
4. Remove the remaining 30 nuts, bolts and spacers from the HP compressor front case split line flanges.
1. SBE 74-0001: Ignition - Introduce new ignition exciter mounting brackets.
2. Refer to Figure, Figure, Figure, Figure, Figure and Figure.
3. Remove the 54 nuts and bolts and the brackets from the HP compressor front case to compressor rear outer case flange.
4. CAUTION
  THE SPLIT LINE BOLTS ARE A CLOSE TOLERANCE FIT AND MUST NOT BE TURNED DURING THEIR REMOVAL.
  Remove the four nuts and the four bolts which attach the upper and lower support brackets at the HP compressor front case right hand split line. Remove the upper and lower support brackets.
5. Remove the remaining 28 nuts, bolts and spacers from the HP compressor front case split line flanges.
1. Refer to Figure and Figure.
2. 1. Adjust the three pushers, part of the holding fixture, to lift the HP compressor rear cases and vanes. Lift the HP compressor rear cases and vanes sufficiently high to permit the removal of the HP compressor front case.
    NOTE
    The split ring assembly is installed on the build stand.
3. 1. Remove the six bolts, part of the build stand, which attach the split ring assembly to the build stand.
  2. Remove the two halves of the HP compressor front case.
  3. Remove the sealing strips.
  4. Remove the six bolts, part of the split ring assembly, which attach the HP compressor front case to the split ring assembly. Remove the split ring assembly.
4. 1. Put the two halves of the support stand on the build stand.
  2. Align the split lines of the support stand with the two dowels in the build stand.
  3. Install the six captive bolts, part of the support stand, to attach the support stand to the build stand.
  4. Tighten the six bolts.
  5. Install the support ring on the support stand.
  6. Align the eight bolt holes in the support ring with the eight bolt holes in the support stand.
  7. Install the eight bolts, part of the support stand, to attach the support ring to the support stand.
  8. Tighten the eight bolts.
5. 1. Adjust the position of the three pushers to lower the HP compressor rear case and vanes.
  2. Make sure the front support cone stiffening ring is correctly installed in the support ring.
  3. Remove the four nuts, the four screws and the four washers which attach the holding fixture to the HP compressor rear outer case.
  4. Remove the holding fixture from the HP compressor assembly.
1. Refer to Figure.
2. 1. Remove the five bolts and the five washers which attach one of the cross key location segments to the rear seal housing.
  2. Remove the cross key location segment.
  3. Remove the remaining 11 cross key location segments as given in steps A.(1) and (2).
3. 1. Remove the 12 bolts which attach the rear seal housing to the compressor rear outer case.
  2. Remove the rear seal housing.
1. 1. SBE 72-0263: Engine - HP Compressor rear outer case - Introduction of revised case with integral rear seal land.
2. 1. Remove the five bolts and the five washers which attach one of the cross key location segments to the compressor rear outer case.
  2. Remove the cross key location segment.
  3. Remove the remaining 5 cross key location segments as given in steps A.(1) and (2).
1. Refer to Figure.
2. 1. Remove the three bolts which attach the stage 7 borescope access cover to the rear outer case.
  2. Remove the cover and discard the gasket.
3. 1. Remove the three bolts which attach the stage 8 borescope access blanking plug to the rear outer case.
  2. Install two of the bolts removed in step B.(1) into the threaded bolt holes in the blanking plug. Tighten the bolts slowly by equal amounts to push the plug from the compressor case.
  3. Remove the blanking plug and discard the gasket.
  4. Do steps B.(1) to (3) again to remove the stages 9 and 11 blanking plugs.
1. Refer to Figure.
2. 1. Use a suitable hoist and three legged sling and lift the lift fixture on to the compressor rear outer case and the compressor rear shaft.
  2. Adjust the positions of the six thumbscrews until the lift fixture touches the compressor rear outer case.
  3. Install the six bolts, the 12 washers and the six nuts, part of the lift fixture. These attach the lift fixture to the compressor rear outer case.
  4. Tighten the six nuts.
3. 1. Remove the 60 bolts which attach the compressor rear outer case to the compressor front support cone.
  2. Use the hoist and the three legged sling installed in step A.(1). Lift the compressor rear outer case vertically from the HP compressor assembly.
  3. Lower the compressor rear outer case on to a suitable work surface.
  4. Remove the hoist, the three legged sling and the lift fixture, from the compressor rear outer case.
1. 1. Pre SBE 72-0343: Remove the 47 bolts which attach the stage 12 left hand and right hand rotor path heatshields to the cross key location ring.
  2. SBE 72-0343: Remove the 47 bolts and washers which attach the stage 12 left hand and right hand rotor path heatshields to the cross key location ring.
2. Remove the stage 12 left hand and right hand rotor path heatshields.
3. Remove the cross key location ring.
4. Remove the inner to outer sealing ring.
1. Refer to Figure, Figure and Figure.
2. Remove the 10 bolts which attach the stage 10 rear heatshield to the stage 10 case. Remove the two halves of the stage 10 rear heatshield.
3. Remove the 10 nuts, bolts and washers which attach the stage 10 front heatshield to the stage 10 case. Remove the two halves of the stage 10 front heatshield. Use IAE 1R18635 Spanner wrench 1 off to hold the bolts.
4. Push the stage 11 heatshield forward until it touches the stage 10 case.
5. 1. Use IAE 1R18827 Extractor 3 off or IAE 1R19407 Extractor 3 off. Install the three extractors at equal distances around the stage 11 case.
  2. Locate the pins of the three extractors in the extraction holes in the rear flange of the stage 11 case.
  3. Adjust the bolts until the plates touch the rear face of the stage 11 case front flange.
  4. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity until the stage 12 rotor path ring is removed.
  5. Remove the three extractors from the stage 11 case.
6. Remove the stage 11 heatshield.
7. Remove the 37 nuts and bolts which attach stage 11 case to the stage 10 case.
8. 1. Use IAE 1R18827 Extractor 3 off or IAE 1R19407 Extractor 3 off. Install the three extractors at equal distances around the stage 11 case.
  2. Locate the pins of the three extractors in the extraction holes in the front flange of the stage 11 case.
  3. Adjust the bolts until the plates touch the front of the stage 11 case rear flange.
  4. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  5. Do step H.(4) again until the stage 11 case is removed.
  6. Remove the three extractors from the stage 11 case.
9. Remove the stage 11 insulation strips from the stage 11 stator vane platforms.
10. Remove the stage 11 stator vanes from the stage 11 rotor path ring.
11. Remove the stage 11 rotor path ring. If the stage 11 rotor path ring is a tight fit use the extractors used in step H. to remove it.
1. SBE 72-0343: Engine - HP compressor ring cases - Introduction of integral HP compressor cases and rotor paths.
2. Refer to Figure and Figure.
3. Remove the 10 bolts which attach the stage 10 rear heatshield to the stage 11 rotor path case assembly case. Remove the two halves of the stage 11 rear heatshield.
4. Remove the 10 nuts, bolts and washers which attach the stage 10 front heatshield to the stage 11 rotor path case assembly. Remove the two halves of the stage 10 front heatshield. Use IAE 1R18635 Spanner wrench 1 off to hold the bolts.
5. Push the stage 11 heatshield forward until it touches the stage 11 rotor path case assembly.
6. Remove the stage 11 heatshield.
7. Remove the 37 nuts and bolts which attach stage 12 rotor path case assembly to the stage 11 rotor path case assembly.
8. 1. Use IAE 1R18827 Extractor 3 off. Install the three extractors at equal distances around the stage 11 case.
  2. Locate the pins of three extractors in the extraction holes in the front flange of the stage 12 rotor path case assembly.
  3. Adjust the bolts until the plates touch the front of the stage 12 rotor path case assembly rear flange.
  4. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  5. Do the step G.(4) again until the stage 12 rotor path case assembly is removed.
  6. Remove the three extractors from the stage 12 rotor path case assembly.
9. Remove the stage 11 insulation strips from the stage 11 stator vane platforms.
10. Remove stage 11 stator vanes from the stage 11 rotor path case assembly.
1. SBE 72-0477: Engine - HP compressor ring cases - Deletion of stage 8 to 11 heatshields.
2. Refer to Figure, Figure and Figure.
3. 1. Use IAE 1R18827 Extractor 3 off. Install the three extractors at equal distances around the stage 11 case.
  2. Locate the pins of the three extractors in the extraction holes in the rear flange of the stage 11 case.
  3. Adjust the bolts until the plates touch the rear face of the stage 11 case front flange.
  4. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity until the stage 12 rotor path ring is removed.
  5. Remove the three extractors from the stage 11 case.
4. Remove the 37 nuts and bolts which attach stage 11 case to the stage 10 case.
5. 1. Use IAE 1R18827 Extractor 3 off or IAE 1R19407 Extractor 3 off. Install the three extractors at equal distances around the stage 11 case.
  2. Locate the pins of the three extractors in the extraction holes in the front flange of the stage 11 case.
  3. Adjust the bolts until the plates touch the front of the stage 11 case rear flange.
  4. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  5. Do step D.(4) again until the stage 11 case is removed.
  6. Remove the three extractors from the stage 11 case.
6. Remove the stage 11 insulation strips from the stage 11 stator vane platforms.
7. Remove the stage 11 stator vanes from the stage 11 rotor path ring.
8. Remove the stage 11 rotor path ring. If the stage 11 rotor path ring is a tight fit use the extractors used in step D. to the rotor path ring.
1. SBE 72-0343: Engine - HP compressor ring cases - Introduction of integral HP compressor cases and rotor paths.
2. SBE 72-0477: Engine - HP compressor ring cases - Deletion of stage 8 to 11 heatshields.
3. Refer to Figure and Figure.
4. Remove the 37 nuts and bolts which attach stage 12 rotor path case assembly to the stage 11 rotor path case assembly.
5. 1. Use IAE 1R18827 Extractor 3 off. Install the three extractors at equal distances around the stage 11 case.
  2. Locate the pins of the three extractors in the extraction holes in the front flange of the stage 12 rotor path case assembly.
  3. Adjust the bolts until the plates touch the front of the stage 12 rotor path case assembly rear flange.
  4. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  5. Do step C.(4) again until the stage 12 rotor path case assembly is removed.
  6. Remove the three extractors from the stage 12 rotor path case assembly.
6. Remove the stage 11 insulation strips from the stage 11 stator vane platforms.
7. Remove the stage 11 stator vanes from the stage 11 rotor path case assembly.
1. Refer to Figure, Figure, Figure and Figure.
2. 1. Remove the 37 nuts and bolts which attach the stage 10 case and rotor path ring to the stage 9 case. Use IAE 1R18635 Spanner wrench 1 off to remove the nuts.
  2. Use IAE 1R18827 Extractor 3 off or IAE 1R19407 Extractor 3 off to remove the stage 10 case.
  3. Install the three extractors at equal distances around the stage 10 case.
  4. Install the pins of the three extractors in the extraction holes in the front flange of the stage 10 case.
  5. Adjust the bolts until the plates touch the front of the stage 10 case rear flange.
  6. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  7. Do step B.(6) again until the stage 10 case is removed.
  8. Remove the three extractors from the stage 10 case.
3. Remove the stage 10 insulation strips from the stator vane platforms.
4. Remove the stage 10 stator vanes from the stage 10 rotor path ring.
5. Remove the stage 10 rotor path ring. If the stage 10 rotor path ring is a tight fit use the extractors used in step B to remove it.
1. SBE 72-0343: Engine - HP Compressor ring cases - Introduction of integral HP Compressor cases and rotor paths.
2. Refer to Figure, Figure, Figure and Figure.
3. 1. Remove the 37 nuts and bolts which attach the stage 11 rotor path case assembly to the stage 10 rotor path case assembly. Use IAE 1R18635 Spanner wrench 1 off to remove the nuts.
  2. Use IAE 1R18827 Extractor 3 off or IAE 1R19407 Extractor 3 off to remove the stage 11 rotor path case assembly.
  3. Install the three extractors at equal distances around the stage 11 rotor path case assembly.
  4. Install the pins of the three extractors in the extraction holes in the front flange of the stage 11 rotor path case assembly.
  5. Adjust the bolts until the plates touch the front of the stage 11 rotor path case assembly rear flange.
  6. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  7. Do step B.(6) again until the stage 11 rotor path case assembly is removed.
  8. Remove the three extractors from the stage 11 rotor path case assembly.
4. Remove the stage 10 insulation strips from the stator vane platforms.
5. Remove the stage 10 stator vanes from the stage 10 rotor path case assembly.
1. Refer to Figure and Figure.
2. Remove the 10 bolts which attach the stage 9 front heatshield to the stage 9 case. Remove the two halves of the stage 9 heatshield.
3. Remove the stage 8 heatshield.
4. 1. Remove the 37 nuts and bolts which attach the stage 9 case and rotor path ring to the stage 8 case.
  2. Use IAE 1R19407 Extractor 3 off to remove the stage 9 case.
  3. Install the three extractors at equal distances around the stage 9 case.
  4. Install the pins of the three extractors in the extraction holes in the front flange of the stage 9 case.
  5. Adjust the bolts until the plates touch the front of the stage 9 case rear flange.
  6. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  7. Do step D.(6) again until the stage 9 case is removed.
  8. Remove the three extractors from the stage 9 case.
5. Remove the stage 9 insulation strips from the stator vane platform.
6. Remove the stage 9 stator vanes from the stage 9 rotor path ring rear liner.
7. 1. Use the three extractors used in step B. Install the three extractors at equal distances around the stage 8 case.
  2. Locate the pins of the three extractors in the extraction holes in the rear flange of the stage 8 case.
  3. Adjust the bolts until the plates touch the rear of the front flange of the stage 8 case.
  4. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  5. Do step H.(4) again until the stage 9 rotor path ring is removed.
  6. Remove the three extractors from the stage 8 case.
1. SBE 72-0343: Engine - HP Compressor ring cases - Introduction of integral HP Compressor cases and rotor paths.
2. Refer to Figure, Figure and Figure.
3. Remove the 10 bolts which attach the stage 9 front heatshield to the stage 10 rotor path case assembly. Remove the two halves of the stage 9 heatshield.
4. Remove the stage 8 heatshield.
5. 1. Remove the 37 nuts and bolts which attach the stage 10 rotor path case assembly to the stage 9 rotor path case assembly.
  2. Use IAE 1R18827 Extractor 3 off or IAE 1R19407 Extractor 3 off to remove the stage 10 rotor path case assembly.
  3. Install the three extractors at equal distances around the stage 10 rotor path case assembly.
  4. Install the pins of the three extractors in the extraction holes in the front flange of the stage 10 rotor path case assembly.
  5. Adjust the bolts until the plates touch the front flange of the stage 10 rotor path case assembly rear flange.
  6. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  7. Do step D.(6) again until the stage 10 rotor path case assembly is removed.
  8. Remove the three extractors from the stage 10 rotor path case assembly.
6. Remove the stage 9 insulation strips from the stator vane platform.
7. Remove the stage 9 stator vanes from the stage 9 rotor path case assembly rear liner.
1. SBE 72-0477: Engine - HP compressor ring cases - Deletion of stage 8 to 11 heatshield.
2. Refer to Figure and Figure.
3. 1. Remove the 37 nuts and bolts which attach the stage 9 case and rotor path ring to the stage 8 case.
  2. Use IAE 1R19407 Extractor 3 off to remove the stage 9 case.
  3. Install the three extractors at equal distances around the stage 9 case.
  4. Install the pins of the three extractors in the extraction holes in the front flange of the stage 9 case.
  5. Adjust the bolts until the plates touch the front of the stage 9 case rear flange.
  6. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  7. Do step B.(6) again until the stage 9 case is removed.
  8. Remove the three extractors from the stage 9 case.
4. Remove the stage 9 insulation strips from the stator vane platform.
5. Remove the stage 9 stator vanes from the stage 9 rotor path ring rear liner.
6. 1. Use the three extractors used in step B. Install the three extractors at equal distances around the stage 8 case.
  2. Locate the pins of the three extractors in the extraction holes in the rear flange of the stage 8 case.
  3. Adjust the bolts until the plates touch the rear of the front flane of the stage 8 case.
  4. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  5. Do step F.(4) again until the stage 9 rotor path ring is removed.
  6. Remove the three extractors from the stage 8 case.
1. SBE 72-0343: Engine - HP compressor ring cases - Introduction of integral HP compressor cases and rotor paths.
2. SBE 72-0477: Engine - HP compressor ring cases - Deletion of stage 8 to 11 heatsheilds.
3. Refer to Figure and Figure.
4. 1. Remove the 37 nuts and bolts which attach the stage 10 rotor path case assembly to the stage 9 rotor path case assembly.
  2. Use IAE 1R19407 Extractor 3 off to remove the stage 10 rotor path case assembly.
  3. Install the three extractors at equal distances around the stage 10 rotor path case assembly.
  4. Install the pins of the three extractors in the extraction holes in the front flange of the stage 10 rotor path case assembly.
  5. Adjust the bolts until the plates touch the front of the stage 10 rotor path case assembly rear flange.
  6. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  7. Do Step again until the stage 10 rotor path case assembly is removed.
  8. Remove the three extractors from the stage 10 rotor path case assembly.
5. Remove the stage 9 insulation strips from the stator vane platform.
6. Remove the stage 9 stator vanes from the stage 9 rotor path case assembly rear liner.
1. Refer to Figure, Figure, Figure, Figure, Figure, Figure and Figure.
2. Remove the 10 bolts which attach the stage 7 rear heatshield to the stage 7 case. Remove the two halves of stage 7 rear heatshield.
3. Remove the 10 nuts and bolts which attach the stage 7 front heatshield to the stage 7 case. Remove the two halves of the stage 7 front heatshield.
4. 1. Remove the 28 nuts and bolts which attach the stage 8 case and rotor path ring to the stage 7 case.
  2. Use IAE 1R19407 Extractor 3 off to remove the stage 8 case.
  3. Install the three extractors at equal distances around the stage 8 case.
  4. Install the pins of the three extractors in the extraction holes in the front flange of the stage 8 case.
  5. Adjust the bolts until the plates touch the front of the stage 8 case rear flange.
  6. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  7. Do Step again until the stage 8 case is removed.
  8. Remove the three extractors from the stage 8 case.
5. Remove the stage 8 insulation strips from the stator vane platforms.
6. Remove the stage 8 stator vanes from the stage 8 rotor path ring rear liner.
7. 1. Use the IAE 1R18684 Case extractor 1 off to remove the stage 8 rotor path ring.
  2. Put the ring assembly on the front support cone. The nylon part of the assembly touches the support cone.
  3. Install one half of the split ring on the stage 7 case.
  4. Install the pins of the split ring in the extraction holes in the rear flange of the stage 7 case.
  5. Install the keeper ring on the split ring with the three bolts. Refer to detail A on Figure.
  6. Do Step to Step again to install the other half of the split ring.
  7. Install the remaining three bolts in the keeper ring.
  8. Install the six extractor bolts through the keeper ring and split ring. Make sure the bolts go into the holes in the ring assembly. Refer to detail B on Figure.
  9. Tighten the six extractor bolts by a small equal quantity until the stage 8 rotor path ring is removed. Do not remove the extractor.
8. 1. Remove the 37 nuts and the 37 bolts which attach the stage 7 case to the stage 7 rotor path ring and the front support cone.
  2. Use the extractor IAE 1R18684 Case extractor or IAE 1R18434 Case extractor, 3 off or IAE 1R19406 Extractor, 6 off.
  3. Turn the bolts of the extractor. Turn each bolt by a small equal quantity.
  4. Do Step again until the stage 7 case is removed.
  5. Remove the extractor from the stage 7 case and the front support cone.
9. Remove the stage 7 insulation strips from the stator vane platforms.
1. Refer to Figure, Figure, Figure, Figure, Figure, Figure and Figure.
2. Remove the 10 bolts which attach the stage 7 rear heatshield to the stage 8 rotor path case assembly. Remove the two halves of stage 7 rear heatshield.
3. 1. Remove the 28 nuts and bolts which attach the stage 9 rotor path case assembly to the stage 8 rotor path case assembly.
  2. Use IAE 1R19407 Extractor 3 off to remove the stage 9 rotor path case assembly.
  3. Install the three extractors at equal distances around the stage 9 rotor path case assembly.
  4. Install the pins of the three extractors in the extraction holes in the front flange of the stage 9 rotor path case assembly.
  5. Adjust the bolts until the plates touch the front of the stage 9 rotor path case assembly rear flange.
  6. Continue to turn the bolts of the three extractors. Turn each bolt by a small equal quantity.
  7. Do Step again until the stage 9 rotor path case assembly is removed.
  8. Remove the three extractors from the stage 9 rotor path case assembly.
4. Remove the stage 8 insulation strips from the stator vane platforms.
5. Remove the stage 8 stator vanes from the stage 8 rotor path case assembly rear liner.
6. 1. Remove the 47 nuts and the 47 bolts which attach the stage 8 rotor path case assembly to the stage 7 cone and rotor path assembly.
  2. Use the extractor IAE 1R18684 Case extractor or IAE 1R18434 Case extractor, 3 off or IAE 1R19406 Extractor, 6 off.
  3. Turn the bolts of the extractor. Turn each bolt by a small equal quantity.
  4. Do Step again until the stage 8 rotor path case assembly is removed.
  5. Remove the extractor from the stage 7 cone and rotor path assembly.
7. Remove the stage 7 insulation strips from the stator vane platforms.
1. Refer to Figure, Figure, Figure, Figure and Figure.
2. Remove the stage 7 stator vanes from the stage 7 rotor path ring rear liner.
3. 1. Use IAE 1R18242 Extractor 3 off to remove the stage 7 rotor path ring.
  2. Install the three extractors at equal distances around the stage 7 rotor path ring.
  3. Install the brackets of the three extractors on the front support cone outer flange.
  4. Adjust the positions of the tommy bars until the pins touch the front flange of the stage 7 rotor path ring.
  5. Continue to turn the tommy bars of the three extractors. Turn each tommy bar by a small equal quantity.
  6. Do Step until the stage 7 rotor path ring is removed.
  7. Remove the three extractors from the front support cone.
1. Refer to Figure, Figure, Figure and Figure.
2. 1. Use IAE 1R18243 Extractor 3 off to remove the front support cone.
  2. Install the three extractors at equal distances around the front support cone.
  3. Install the brackets of the three extractors on the front support cone outer flange. Make sure the brackets are installed opposite to three of the extraction holes in the front support cone.
  4. Adjust the positions of the tommy bars until the pins touch the front support cone stiffening ring.
  5. Continue to turn the tommy bars of the three extractors. Turn each tommy bar by a small quantity.
  6. Do Step until the front support cone is removed.
  7. Remove the three extractors from the front support cone.
    Pre SBE 72-0296: Remove the front support cone stiffening ring from the support ring.
1. Refer to Figure.
2. Remove the eight bolts which attach the support ring to the support stand.
3. Remove the two halves of the support ring.
4. Release the six captive bolts which attach the support stand to the build stand.
5. Remove the two halves of the support stand.
1. Assemble the HP compressor rear cases and vanes as given in TASK 72-41-20-440-001-B00, TASK 72-41-20-440-002-B00, TASK 72-41-20-440-003-B00, TASK 72-41-20-440-004-B00, TASK 72-41-20-440-005-B00 (ASSEMBLY-001 thru -005, CONFIG-002). Assemble the assembly with the support cone stiffening ring front flange down on a clean work surface.
1. Install the compressor rear outer case as given in TASK 72-41-00-440-001-B00 (ASSEMBLY-001, CONFIG-002).
2. Install the seal housing and cross key location ring as given in TASK 72-41-00-440-001-B00 (ASSEMBLY-001, CONFIG-002).
1. Refer to Figure.
2. Use a suitable hoist and lift the IAE 1R18217 Lift fixture 1 off to the HP compressor rear outer case.
3. Align the six bolt holes in the lift fixture with six bolt holes in the HP compressor rear outer case rear flange.
4. Install the six bolts, 12 washers and 6 nuts, part of the lift fixture. These attach the lift fixture to the HP compressor rear outer case.
5. Tighten the six nuts.
1. Refer to Figure.
  NOTE
  Optional procedure to measure the HP compressor rear case rotor path linings is to use a 3 axis measurement machine.
2. 1. Locate the location ring in the checking fixture.
  2. Align the slots in the base of the location ring with the studs in the top surface of the checking fixture.
  3. Install the four capscrews to attach the location ring to the checking fixture. Tighten the four capscrews.
3. Use a suitable hoist and three legged sling and lift the HP compressor rear cases and vanes above the checking fixture.
4. Carefully lower the HP compressor rear cases and vanes to the checking fixture.
5. Align six bolt holes in the HP compressor rear outer case front flange with the six studs on the location ring.
6. Install the six nuts and washers on the six studs. Tighten the six nuts.
7. Remove the lift fixture, the hoist and the three legged sling from the HP compressor rear cases and vanes.
1. Refer to Figure.
2. Install IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18722 Setting button 1 off in the setting plate and setting base. Locate the setting button in the stage 12 rotor path ring location in the setting plate. Align the setting button and setting plate with the slot in the setting base. The tools are correctly set when the setting button goes through the setting plate in to the slot in the setting base.
4. Install the IAE 1R18033 Gage mounting plate 1 off on the pillar of the setting base.
5. 1. Remove the two lower handknobs and plates from the transducer carrier.
  2. Locate the transducer carrier on the gage mounting plate.
  3. Install the two handknobs and plates removed in step D.(1).
  4. Adjust the position of the transducer carrier until the roller anvil on the transducer touches the setting button.
  5. Tighten the two handknobs.
6. Connect the transducer electrical connection to the measuring instrument.
7. Set the measuring instrument to zero and make sure that a positive (+) reading is given when the plunger moves in to the transducer.
8. 1. Pull the puller radially in. Turn the puller through 90 degrees.
  2. Pull the handknob on the top of the transducer carrier vertically up.
  3. Turn the transducer carrier through 90 degrees.
  4. Turn the transducer carrier to its initial position.
  5. Lock the transducer carrier in its initial position with the handknob released in step G.(2).
  6. Move the puller to its initial position.
  7. Make sure the measuring instrument shows a value of zero.
  8. Do steps G.(1) to (7) three times to make sure the tools operate correctly. The tools are now set correctly to measure the stage 12 rotor path ring radius.
1. Refer to Figure.
2. 1. Install the IAE 1R18787 Measuring sleeve 1 off on the pillar of IAE 1R18031 Checking fixture 1 off.
  2. Remove IAE 1R18033 Gage mounting plate 1 off and the IAE 1R18032 Transducer carrier 1 off from the setting base.
  3. Pull the puller on the transducer carrier radially in and turn the puller through 90 degrees.
  4. Pull the hand knob on top of the transducer carrier radially up.
  5. Turn the transducer carrier through 90 degrees.
  6. Install the gage mounting plate and carrier on the checking fixture pillar.
  7. Carefully lower the gage mounting plate to the measuring sleeve on the checking fixture pillar.
  8. Tighten the thumbscrew, part of the gage mounting plate, to secure the gage mounting plate on the measuring sleeve.
  9. Turn the transducer carrier to its initial position.
  10. Lock the transducer carrier in its initial position with the handknob released in step A. (4).
  11. Move the puller, moved in step A. (3) to its initial position.
3. 1. Turn the HP compressor rear cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-21-200-014-B00 (INSPECTION/CHECK-014, CONFIG-002).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 12 rotor path ring radius.
    Radius = A - B
    where A = Tool setting radius = 10.302 in. (261.66 mm)
    B = Measuring instrument value
    Radius = 10.350
4. Remove the transducer carrier, gage mounting plate and measuring sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18722 Setting button 1 off through the correct location in IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18032 Transducer carrier 1 off and IAE 1R18033 Gage mounting plate 1 off on the setting base.
4. Use the procedure in Step to set the tools to the correct value.
5. Install the IAE 1R18786 Distance sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier and gage mounting plate on the distance sleeve on the checking fixture. Refer to the procedure given in Step.
7. 1. Turn the HP compressor rear cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-21-200-012-B00, SUBTASK 72-41-21-220-200 (INSPECTION/CHECK-012, CONFIG-002).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 11 rotor path ring radius.
    Radius = A - B
    where A = tool setting radius = 10.302 in. (261.66 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
8. Remove the transducer carrier, gage mounting plate and distance sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18722 Setting button 1 off through the correct location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18032 Transducer carrier 1 off and IAE 1R18033 Gage mounting plate 1 off on the setting base.
4. Use the procedure given in Step to set the tools to the correct value.
5. Install the IAE 1R18785 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier and gage mounting plate on the measuring sleeve on the checking fixture. Refer to Step for the procedure.
7. 1. Turn the HP compressor rear cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-21-200-009-B00, SUBTASK 72-41-21-220-318 SUBTASK 72-41-21-220-318 (INSPECTION/CHECK-009, CONFIG-002).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 10 rotor path ring radius.
    Radius = A - B
    where A = tool setting radius = 10.325 in. (262.25 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
8. Remove the transducer carrier, gage mounting plate and measuring sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18722 Setting button 1 off through the correct location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18032 Transducer carrier 1 off and IAE 1R18033 Gage mounting plate 1 off on the setting base.
4. Use the procedure given in Step to set the tools to the correct value.
5. Install the IAE 1R18784 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier and gage mounting plate on the measuring sleeve on the checking fixture. Refer to Step for the procedure.
7. 1. Turn the HP compressor rear cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-21-200-008-B00, SUBTASK 72-41-21-220-312 (INSPECTION/CHECK-008, CONFIG-002).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 9 rotor path ring radius.
    Radius = A - B
    Where A = Tool setting ring radius = 10.329 in. (262.35 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
8. Remove the transducer carrier, gage mounting plate and measuring sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18722 Setting button 1 off through the correct location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18032 Transducer carrier 1 off and IAE 1R18033 Gage mounting plate 1 off on the setting base.
4. Use the procedure given in Step to set the tools to the correct values.
5. Install the IAE 1R18783 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier and gage mounting plate on the measuring sleeve on the checking fixture. Refer to Step for the procedure.
7. 1. Turn the HP compressor rear cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-21-200-002-B00, SUBTASK 72-41-21-220-341 (INSPECTION/CHECK-002, CONFIG-002).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 8 rotor path ring radius.
    Radius = A - B
    where A = Tool setting radius = 10.329 in. (262.35 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
8. Remove the transducer carrier, gage mounting plate and measuring sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18722 Setting button 1 off through the correct location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18032 Transducer carrier 1 off and IAE 1R18033 Gage mounting plate 1 off on the setting base.
4. Use the procedure given in Step to set the tools to the correct values.
5. Install the IAE 1R18782 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier and gage mounting plate on the measuring sleeve on the checking fixture. Refer to Step for the procedure.
7. 1. Turn the HP compressor rear cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-21-200-001-B00, SUBTASK 72-41-21-220-294 (INSPECTION/CHECK-001, CONFIG-002).
  2. Write down the values given on the measuring instrument at eight equal locations.
  3. Calculate and write down the eight values of the stage 7 rotor path ring radius.
    Radius = A - B
    where A = Tool setting radius = 10.327 in. (262.30 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
8. Remove the transducer carrier, gage mounting plate and measuring sleeve from the checking fixture.
1. Refer to Figure.
2. Use the IAE 1R18533 Setting base 1 off, IAE 1R18701 Indexing plate 1 off and IAE 1R18040 Setting button 1 off assembled in Step.
3. Install the IAE 1R18538 Transducer carrier 1 off on the setting base.
4. Set the tools to measure the stage 11 stator vane radius. Refer to the procedure in Step for the procedure to set the tools.
1. Refer to Figure.
2. Install IAE 1R18792 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
3. Remove the IAE 1R18538 Transducer carrier 1 off from the setting base.
4. Install the transducer carrier on the measuring sleeve on the checking fixture.
5. Align the transducer on the stage 11 stator vane tip at the No. 1 position.
6. Write down the value given on the measuring instrument.
7. Calculate and write down the stage 11 stator vane tip radius.
  Radius = A - B
  where A = Tool setting radius = 9.356 in. (237.64 mm)
  B = Measuring instrument values
  Refer to Step for examples to calculate the radius
8. Do steps E. to G. at the remaining stage 11 stator vanes. Start at the No. 2 position.
9. Remove the transducer carrier and measuring sleeve from the checking fixture.
10. All stage 11 stator vanes with a radius of more than 9.360 in. (237.74 mm) must be placed in a separate container. Identify each of the vanes with its radius. Refer to the SPM TASK 70-09-01-400-501.
1. Refer to Figure.
2. Locate the IAE 1R18040 Setting button 1 off through the correct location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18538 Transducer carrier 1 off on the setting base.
4. Set the tools to measure the stage 10 stator vane tip radius. Use the procedure given in Step.
5. Install the IAE 1R18791 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier on the measuring sleeve on the checking fixture.
7. Align the transducer on the stage 10 stator vane tip at the No. 1 position.
8. Write down the values shown on the measuring instrument.
9. Calculate and write down the stage 10 stator vane tip radius.
  Radius = A - B
  where A = Tool setting radius = 9.353 in. (237.55 mm)
  B = Measuring instrument values
  Refer to Step for examples to calculate the radius
10. Do steps G. to I. at the remaining stage 10 stator vanes. Start at the No. 2 position.
11. Remove the transducer carrier and measuring sleeve from the checking fixture.
12. All the stage 10 stator vanes with a radius of more than 9.358 in. (237.70 mm) must be placed in a separate container. Identify each of the vanes with its radius. Refer to the SPM TASK 70-09-01-400-501.
1. Refer to Figure.
2. Locate the IAE 1R18040 Setting button 1 off through the correct location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18538 Transducer carrier 1 off on the setting base.
4. Set the tools to measure the stage 9 stator vane tip radius. Use the procedure given in Step.
5. Install the IAE 1R18790 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier on the measuring sleeve on the checking fixture.
7. Align the transducer on the stage 9 stator vane tip at the No. 1 position.
8. Write down the value shown on the measuring instrument.
9. Calculate and write down the stage 9 stator vane tip radius.
  Radius = A - B
  where A = Tool setting radius = 9.334 in. (237.08 mm)
  B = Measuring instrument values
  Refer to Step for examples to calculate the radius
10. Do steps G. to I. at the remaining stage 9 stator vanes. Start at the No. 2 position.
11. Remove the transducer carrier and measuring sleeve from the checking fixture.
12. All the stage 9 stator vanes with a radius of more than 9.337 in. (237.16 mm) must be placed in a separate container. Identify each of the vanes with its radius. Refer to the SPM TASK 70-09-01-400-501.
1. Refer to Figure.
2. Locate the IAE 1R18040 Setting button 1 off through the correct location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18538 Transducer carrier 1 off on the setting base.
4. Set the tools to measure the stage 8 stator vane tip radius. Use the procedure given in Step.
5. Install the IAE 1R18789 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier on the measuring sleeve on the checking fixture.
7. Align the transducer on the stage 8 stator vane tip at the No. 1 position.
8. Write down the value shown on the measuring instrument.
9. Calculate and write down the stage 8 stator vane tip radius.
  Radius = A - B
  where A = Tool setting radius = 9.200 in. (233.68 mm)
  B = Measuring instrument values
  Refer to Step for examples to calculate the radius
10. Do steps G. to I. at the remaining stage 8 stator vanes. Start at the No. 2 position.
11. Remove the transducer carrier and measuring sleeve from the checking fixture.
12. All the stage 8 stator vanes with a radius of more than 9.203 in. (233.76 mm) must be placed in a separate container. Identify each of the vanes with its radius. Refer to SPM TASK 70-09-01-400-501.
1. Refer to Figure.
2. Locate the IAE 1R18040 Setting button 1 off through the correct location in the IAE 1R18701 Indexing plate 1 off in the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18538 Transducer carrier 1 off on the setting base.
4. Set the tools to measure the stage 7 stator vane tip radius. Use the procedure given in Step.
5. Install the IAE 1R18788 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier on the measuring sleeve on the checking fixture.
7. Align the transducer on the stage 7 stator vane tip at the No. 1 position.
8. Write down the value shown on the measuring instrument.
9. Calculate and write down the stage 7 stator vane tip radius.
  Radius = A - B
  where A = Tool setting radius = 8.968 in. (227.78 mm)
  B = Measuring instrument values
  Refer to Step for examples to calculate the radius
10. Do steps G. to I. at the remaining stage 7 stator vanes. Start at the No. 2 position.
11. Remove the transducer carrier and measuring sleeve from the checking fixture.
12. All the stage 7 stator vanes with a radius of more than 8.971 in. (227.88 mm) must be placed in a separate container. Identify each of the vanes with its radius. Refer to SPM TASK 70-09-01-400-501.
1. Refer to Figure and Figure.
2. Install the IAE 1R18217 Lift fixture 1 off on the HP compressor rear cases and vanes as given in Step.
3. Remove the six nuts and washers which attach the HP compressor rear cases and vanes to the location ring on the checking fixture.
4. Use a suitable hoist attached to the lift fixture and remove the HP compressor rear cases and vanes from the checking fixture.
5. Remove the four capscrews which attach the location ring to the checking fixture. Remove the location ring from the checking fixture.
1. Disassemble the HP compressor rear cases and vanes as given in TASK 72-41-00-040-001-B00 (DISASSEMBLY, CONFIG-002) and TASK 72-41-20-040-001 (DISASSEMBLY).
1. Assemble the HP compressor front cases as given in TASK 72-41-30-440-001-C00 (ASSEMBLY-001, CONFIG-003) and TASK 72-41-30-440-002 to TASK 72-41-30-440-009 (ASSEMBLY-001 to -008, CONFIG-002).
1. Install the HP compressor front cases in the IAE 1R18031 Checking fixture 1 off as given in TASK 72-41-30-440-009-B00 (ASSEMBLY-009, CONFIG-002).
  NOTE
  Optional procedure to measure the HP compressor forward case rotor path linings, stage 3, 4 and 5 inner stator rings, and stage 6 stator vane tip radius, is to use a 3 axis measurement machine.
1. Refer to Figure.
2. Install IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18722 Setting button 1 off through the stage 6 location in the setting plate. Make sure the setting button goes in the correct location in the setting base.
4. Install the IAE 1R18033 Gage mounting plate 1 off with the IAE 1R18032 Transducer carrier 1 off on the setting base.
5. Set the tools to measure the stage 6 rotor path ring radius. Use the procedure given in Step.
1. Refer to Figure.
2. Install IAE 1R18780 Distance sleeve 1 off on the pillar of the checking fixture.
3. Remove the gage mounting plate and transducer carrier from the setting base.
4. Install the IAE 1R18033 Gage mounting plate 1 off and IAE 1R18032 Transducer carrier 1 off on the measuring sleeve installed in step A.
5. Tighten the turn screw to locate the assembly on the checking fixture.
6. Align the roller anvil part of the transducer with the stage 6 rotor path ring.
7. 1. Turn the HP compressor front cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-31-200-005-C00, SUBTASK 72-41-31-220-172 (INSPECTION/CHECK-005, CONFIG-003).
  2. Write down the values given on the measuring instrument at eight equal angular positions.
  3. Calculate and write down the eight values of the stage 6 rotor path ring radius.
    Radius = A - B
    where A = Tool setting radius = 10.344 in. (262.74 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
  4. Remove the transducer carrier, gage mounting plate and measuring sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18722 Setting button 1 off through the stage 5 location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18033 Gage mounting plate 1 off with the IAE 1R18032 Transducer carrier 1 off on the setting base.
4. Set the tools to measure the stage 5 rotor path ring radius. Use the procedure given in Step.
5. Install the IAE 1R18779 Distance sleeve 1 off on the pillar of the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier and gage mounting plate on the distance sleeve on the checking fixture. Refer to Step for the procedure.
7. 1. Turn the HP compressor front cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-31-200-004-B00, SUBTASK 72-41-31-220-167 (INSPECTION/CHECK-004, CONFIG-002).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 5 rotor path ring radius.
    Radius = A - B
    where A = Tool setting radius = 10.385 in. (263.77 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
  4. Remove the transducer carrier, gage mounting plate and distance sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18722 Setting button 1 off through the stage 4 location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18033 Gage mounting plate 1 off with the IAE 1R18032 Transducer carrier 1 off on the setting base.
4. Set the tools to measure the stage 4 rotor path ring radius. Use the procedure given in Step.
5. Install the IAE 1R18778 Distance sleeve 1 off on the pillar of the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier and gage mounting plate on the measuring sleeve on the checking fixture. Refer to Step for the procedure.
7. 1. Turn the HP compressor front cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-31-200-003-B00, SUBTASK 72-41-31-220-163 (INSPECTION/CHECK-003, CONFIG-002).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 4 rotor path ring radius.
    Radius = A - B
    where A = Tool setting radius = 10.553 in. (268.03 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
  4. Remove the transducer carrier, gage mounting plate and measuring sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18722 Setting button 1 off through the stage 3 location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18033 Gage mounting plate 1 off with the IAE 1R18032 Transducer carrier 1 off on the setting base.
4. Set the tools to measure the stage 3 rotor path radius. Use the procedure given in Step.
5. Install the IAE 1R18777 Distance sleeve 1 off on the pillar of the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier and gage mounting plate on the distance sleeve on the checking fixture. Refer to Step for the procedure.
7. 1. Turn the HP compressor front cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-31-200-002-B00, SUBTASK 72-41-31-220-193 (INSPECTION/CHECK-002, CONFIG-002).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 3 rotor path radius.
    Radius = A - B
    where A = Tool setting radius = 11.148 in. (283.16 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
8. Remove the transducer carrier, gage mounting plate and distance sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18040 Setting button 1 off through the correct location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18539 Transducer carrier 1 off on the setting base.
4. Set the tools to measure the stage 3 half ring seal radius. Use the procedure in Step.
5. Install the IAE 1R18514 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier on the measuring sleeve on the checking fixture.
7. Align the transducer on the stage 3 half ring seal. Refer to Step for the procedure.
8. 1. Turn the HP compressor front cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-33-200-002, SUBTASK 72-41-33-220-061 (INSPECTION/CHECK-002, CONFIG-001).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 3 half ring seal radius.
    Radius = A - B
    where A = Tool setting radius = 5.178 in. (131.52 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
9. Remove the transducer carrier and measuring sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18040 Setting button 1 off through the stage 4 lower location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18539 Transducer carrier 1 off on the setting base.
4. Set the tools to measure the stage 4 lower (small diameter) half ring seal radius. Use the procedure given in Step.
5. Install IAE 1R18515 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier on the measuring sleeve on the checking fixture.
7. Align the transducer on the stage 4 lower (small diameter) half ring seal. Refer to Step for the procedure.
8. 1. Turn the HP compressor front cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-33-200-004, SUBTASK 72-41-33-220-074 (INSPECTION/CHECK-004, CONFIG-001).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 4 lower half ring seal radius.
    Radius = A - B
    where A = Tool setting radius = 5.952 in. (151.18 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
9. Remove the transducer carrier and measuring sleeve from the checking fixture.
10. Measure the stage 4 upper (large diameter) half seal ring radius. Use the procedure given in steps A. thru F. Use IAE 1R18516 Measuring sleeve 1 off on the checking fixture.
11. 1. Turn the HP compressor front cases smoothly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-33-200-004, SUBTASK 72-41-33-220-074 (INSPECTION/CHECK-004, CONFIG-001).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 4 upper half ring seal radius.
    Radius = A - B
    where A = Tool setting radius = 6.141 in. (155.98 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
12. Remove the transducer carrier and measuring sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18040 Setting button 1 off through the stage 5 seal ring location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18539 Transducer carrier 1 off on the setting base.
4. Set the tools to measure the stage 5 half ring seal radius. Refer to the procedure given in Step.
5. Install IAE 1R18517 Measuring sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier on the measuring sleeve on the checking fixture.
7. Align the transducer on the stage 5 half ring seal radius. Refer to Step for the procedure.
8. 1. Turn the HP compressor front cases assembly in a clockwise direction.
    NOTE
    Refer to TASK 72-41-33-200-006, SUBTASK 72-41-33-220-094 (INSPECTION/CHECK-006, CONFIG-001).
  2. Write down the values given on the measuring instrument at eight equal angular locations.
  3. Calculate and write down the eight values of the stage 5 half ring seal radius.
    Radius = A - B
    where A = Tool setting radius = 6.964 in. (176.89 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
9. Remove the transducer carrier and measuring sleeve from the checking fixture.
1. Refer to Figure.
2. Locate the IAE 1R18040 Setting button 1 off through the stage 6 stator vane location in the IAE 1R18701 Indexing plate 1 off on the IAE 1R18533 Setting base 1 off.
3. Install the IAE 1R18042 Transducer carrier 1 off and IAE 1R18531 Measuring sleeve 1 off on the setting base.
4. Set the tools to measure the stage 6 stator vane tip radius. Refer to the procedure given in Step.
5. Install the IAE 1R18781 Distance sleeve 1 off on the IAE 1R18031 Checking fixture 1 off.
6. Install the transducer carrier on the measuring sleeve on the checking fixture.
7. Align the transducer carrier on the stage 6 stator vane tip at the No. 1 position.
8. 1. Write down the value given on the measuring instrument.
  2. Calculate and write down the stage 6 stator vane tip radius.
    Radius = A - B
    where A = Tool setting radius = 8.640 in. (219.45 mm)
    B = Measuring instrument values
    Refer to Step for examples to calculate the radius
9. Do steps G. and H. at the remaining 83 stage 6 stator vanes.
10. Remove the transducer carrier and measuring sleeve from the checking fixture.
11. All the stage 6 stator vanes with a radius of more than 8.645 in. (219.60 mm) must be placed in a separate container. Identify each of the vanes with its radius. Refer to SPM TASK 70-09-01-400-501.
1. Remove the HP compressor front cases from the checking fixture as given in TASK 72-41-30-440-010-B00 (ASSEMBLY-010, CONFIG-002).
1. Disassemble the HP compressor front cases as given in TASK 72-41-00-040-001-B00 (DISASSEMBLY, CONFIG-002) and TASK 72-41-30-440-010-B00 (ASSEMBLY-010, CONFIG-002).

View through the HP System Module on the Build Stand

Pre SBE 72-0366, Pre SBE 72-0406, And Pre SBE 72-0538: Remove The VSV Crankshaft Remove The Control Rods

Pre SBE 72-0366, Pre SBE 72-0406, And SBE 72-0538: Remove The VSV Crankshaft Remove The Control Rods

Pre SBE 72-0366 and Pre SBE 72-0406: Remove the VSV Crankshaft

SBE 72-0366: Remove the VSV crankshaft

SBE 72-0366 And Pre SBE 72-0538: Remove The VSV Crankshaft Remove The Control Rods

SBE 72-0366 And SBE 72-0538: Remove The VSV Crankshaft Remove The Control Rods

SBE 72-0406: Remove the VSV crankshaft

SBE 72-0406 And Pre SBE 72-0538: Remove The VSV Crankshaft Remove The Control Rods

SBE 72-0406 And SBE 72-0538: Remove The VSV Crankshaft Remove The Control Rods

Repair Details and Dimensions

Remove the VIGV actuating ring connectors

Install the lifter on the HP compressor assembly

Install the HP compressor assembly on the safety support stand

Remove the variable inlet guide vane front shroud

Install the HP compressor assembly in the build stand

Remove the stage 3 actuating ring connectors

Remove the stage 4 actuating ring connectors

Remove the stage 5 actuating ring connectors

Install the Holding Fixture

Remove the HP compressor front case split line and rear flange nuts, bolts and brackets

Remove the HP Compressor Front Case Split Line and Rear Flange Nuts, Bolts and Brackets

Pre SBE 72-0189 and SBE 79-0088: Remove the HP Compressor Front Case Split Line and Rear Flange Nuts, Bolts and Brackets

Remove the HP Compressor Front Case

Remove the cross key location segments and the rear seal housing

Remove the borescope access blank plugs and the cover

Remove the compressor rear outer case

SBE 72-0280, Pre SBE 72-0343 and SBE 72-0343 : Remove the Stage 12 Rotor Path Heatshields and the Cross Key Location Seal Carrier and the Stage 11 Stator Vanes

SBE 72-0280, Pre SBE 72-0343, SBE 72-0343 and SBE 72-0477: Remove the Stage 12 Rotor Path Heatshields and the Cross Key Location Seal Carrier and the Stage 11 Stator Vanes

Tools to Remove the Rotor Path Rings and Cases

Pre SBE 72-0343, SBE 72-0343 and Pre SBE 72-0477: Remove the Stage 10 Case, Stator Vanes and Rotor Path Ring

Pre SBE 72-0343, SBE 72-0343 and SBE 72-0477: Remove the Stage 10 Case, Stator Vanes and Rotor Path Ring

Pre SBE 72-0343, SBE 72-0343 and Pre SBE 72-0477: Remove the Stage 9 Case, Rotor Path Ring and Stator Vanes

Pre SBE 72-0343, SBE 72-0343 and SBE 72-0477: Remove the Stage 9 Case, Rotor Path Ring and Stator Vanes

Pre SBE 72-0343, SBE 72-0343 and Pre SBE 72-0477: Remove the Stage 8 Case, Rotor Path Ring, Stator Vanes and the Stage 7 Case

Pre SBE 72-0343, SBE 72-0343 and SBE 72-0477: Remove the Stage 8 Case, Rotor Path Ring, Stator Vanes and the Stage 7 Case

SBE 72-0280, Pre SBE 72-0296, SBE 72-0296, Pre SBE 72-0343 and SBE 72-0343: Remove the Stage 8 Case, Rotor Path Ring, Stator Vanes and the Stage 7 Case

Pre SBE 72-0296: Tools to Remove the Rotor Path Rings and Cases

Pre SBE 72-0296, SBE 72-0296, Pre SBE 72-0343 and SBE 72-0343: Tools to Remove the Rotor Path Rings and Cases

Pre SBE 72-0296, SBE 72-0296, Pre SBE 72-0343, SBE 72-0343 and SBE 72-0358: Tools to Remove the Rotor Path Rings and Cases

Tools to Remove the Rotor Path Rings and Cases

Pre SBE 72-0296 and SBE 72-0296: Remove the Stage 7 Stator Vanes, Rotor Path Ring and the Front Support Cone

Install the lift fixture

Measure the stage 7 to 11 rotor path ring radius

Set the tools to measure the cases

Measure the stage 7 to 11 stator vane tip radius

Measure the stage 3 to 6 rotor path radius

Measure the stator vane tip radius

Requirements After Job Completion

Follow-On Conditions

NONE

Manufacturer Code:	0AM53
Enterprise Name:	IAE INTERNATIONAL AERO ENGINES AG
BU Name:	NULL
Building:	SUITE 400
Street:	628 HEBRON AVENUE
City:	GLASTONBURY
State:	CT
Zip Code:	06033
Country:	USA

Manufacturer Code:	K6835
Enterprise Name:	MED-LAB LTD
BU Name:	MED-LAB LTD
Street:	COPELAND ST
City:	DERBY
Zip Code:	DE1 2PU
Country:	GREAT BRITAIN
Phone Number:	44-1332-349094
Fax Number:	44-1332-371237
Email:	sales@med-lab.co.uk
Internet:	www.med-lab.co.uk

Manufacturer Code:	LOCAL
Enterprise Name:	LOCALLY SUPPLIED

Manufacturer Code:	X222X
Enterprise Name:	N/A – REFER TO APPLICABLE COMAT SUFFIX

Manufacturer Code:	0AM53
Tool Number:	IAE 1R18031
Tool Name:	IAE 1R18031 Checking fixture

TASK 72-41-00-040-001-B00 HPC Assembly - Disassemble The HPC Cases And Vanes From The Rotor Assembly, Disassembly-001

Export Control

Copyright

Applicability

Common Information

TASK 72-41-00-040-001-B00 HPC Assembly - Disassemble The HPC Cases And Vanes From The Rotor Assembly, Disassembly-001

General

NOTE

NOTE

Preliminary Requirements

Pre-Conditions

Support Equipment

Consumables, Materials and Expendables

Spares

Safety Requirements

Procedure

SUBTASK 72-41-00-040-107-A00 Remove the Crankshaft Assembly from the HP Compressor Front Case (Pre SBE 72-0366)

NOTE

NOTE

SUBTASK 72-41-00-040-107-B00 Remove the Crankshaft Assembly from the HP Compressor Front Case (SBE 72-0366)

NOTE

NOTE

SUBTASK 72-41-00-040-107-C00 Remove the Crankshaft Assembly from the HP Compressor Front Case (SBE 72-0406 and SBE 72-0426)

NOTE

NOTE

SUBTASK 72-41-00-040-107-D00 Remove the Crankshaft Assembly from the HP Compressor Front Case (SBE 72-0564)

NOTE

NOTE

SUBTASK 72-41-00-040-108 Remove the VIGV Actuation Ring Connectors (Pre SBE 72-0385 or SBE 72-0416 and SBE 72-0385 or SBE 72-0416)

SUBTASK 72-41-00-040-109 Install the Lift Fixture and the Lifting Adaptor on to the HP Compressor Assembly

SUBTASK 72-41-00-040-110 Install the HP Compressor Assembly on the Safety Support Stand

NOTE

SUBTASK 72-41-00-040-111 Remove the VIGV Front Shroud (Pre SBE 72-0410 and SBE 72-0410)

NOTE

SUBTASK 72-41-00-040-112 Install the HP Compressor Assembly in the Build Stand

SUBTASK 72-41-00-040-113 Remove the Lifting adapter and the Lift Fixture from the HP Compressor Assembly

SUBTASK 72-41-00-040-114 Remove the Stage 3 Actuating Ring Connectors (Pre SBE 72-0385 or SBE 72-0416: and SBE 72-0385 or SBE 72-0416:)

SUBTASK 72-41-00-040-115 Remove the Stage 4 Actuating Ring Connector (Pre SBE 72-0348, Pre SBE 72-0385 or SBE 72-0416:, SBE 72-0348 and SBE 72-0385 or SBE 72-0416:)

SUBTASK 72-41-00-040-116 Remove the Stage 5 Actuating Ring Connectors (Pre SBE 72-0348, Pre SBE 72-0385or SBE 72-0416:, SBE 72-0348 and SBE 72-0385or SBE 72-0416:)

SUBTASK 72-41-00-040-117 Install the Holding Fixture on the Compressor Rear Outer Case

SUBTASK 72-41-00-040-118-A00 Remove the HP Compressor Front Case Split Line and Rear Flange Nuts, Bolts and Brackets (Pre SBE 74-0001)

CAUTION

SUBTASK 72-41-00-040-118-B00 Remove the HP Compressor Front Case Split Line and Rear Flange Nuts, Bolts and Brackets (SBE 74-0001)

CAUTION

SUBTASK 72-41-00-040-119 Remove the HP Compressor Front Case

NOTE

SUBTASK 72-41-00-040-120-A00 Remove the Cross Key Location Segments and the Rear Seal Housing (Pre SBE 72-0263)

SUBTASK 72-41-00-040-120-B00 Remove the Cross Key Location Segments (SBE 72-0263)

SUBTASK 72-41-00-040-121 Remove the Stages 7, 8, 9 and 11 Borescope Access Blanking Plugs and Cover

SUBTASK 72-41-00-040-122 Remove the Compressor Rear Outer Case

SUBTASK 72-41-00-040-123 Remove the Stage 12 Rotor Path Heatshields and the Cross Key Location (Pre SBE 72-0343 and SBE 72-0343)

SUBTASK 72-41-00-040-124-A00 Remove the Stage 12 Rotor Path Ring, the Stage 11 Case, Stator Vanes and Rotor Path Ring (Pre SBE 72-0343 and Pre SBE 72-0477)

SUBTASK 72-41-00-040-124-B00 Remove the Stage 12 Rotor Path Case Assembly, the Stage 11 Stator Vanes (SBE 72-0343 and Pre SBE 72-0477)

SUBTASK 72-41-00-040-124-C00 Remove the Stage 12 Rotor Path Ring, the Stage 11 Case, Stator Vanes and Rotor Path Ring (Pre SBE 72-0343 and SBE 72-0477)

SUBTASK 72-41-00-040-124-D00 Remove the Stage 12 Rotor Path Case Assembly, the Stage 11 Stator Vanes (SBE 72-0343 and SBE 72-0477)

SUBTASK 72-41-00-040-125-A00 Remove the Stage 10 Case, Stator Vanes and Rotor Path Ring (Pre SBE 72-0343)

SUBTASK 72-41-00-040-125-B00 Remove the Stage 11 Rotor Path Case Assembly and the Stage 10 Stator Vanes (SBE 72-0343)

SUBTASK 72-41-00-040-126-A00 Remove the Stage 9 Case, Rotor Path Ring and Stator Vanes (Pre SBE 72-0343 and Pre SBE 72-0477)

SUBTASK 72-41-00-040-126-B00 Remove the Stage 10 Rotor Path Case Assembly and Stage 9 Stator Vanes (SBE 72-0343 and Pre SBE 72-0477)

SUBTASK 72-41-00-040-126-C00 Remove the Stage 9 Case, Rotor Path Ring and Stator Vanes (Pre SBE 72-0343 and SBE 72-0477)

SUBTASK 72-41-00-040-126-D00 Remove the Stage 10 Rotor Path Case Assembly and Stage 9 Stator Vanes (SBE 72-0343 and SBE 72-0477)

SUBTASK 72-41-00-040-127-A00 Remove the Stage 8 Case, Rotor Path Ring, Stator Vanes and the Stage 7 Case (Pre SBE 72-0296 and Pre SBE 72-0343)

SUBTASK 72-41-00-040-127-B00 Remove the Stage 9 Rotor Path Case Assembly and the Stage 8 Stator Vanes (SBE 72-0296 and SBE 72-0343)

SUBTASK 72-41-00-040-128 Remove the Stage 7 Stator Vanes and Rotor Path Ring (Pre SBE 72-0296 and SBE 72-0296)

SUBTASK 72-41-00-040-129 Remove the Front Support Cone and the Front Support Cone Stiffening Ring (Pre SBE 72-0296 and SBE 72-0296)

SUBTASK 72-41-00-040-130 Remove the Support Ring and the Support Stand from the Build Stand

SUBTASK 72-41-00-040-131 Assemble the HP Compressor Rear Cases and Vanes

SUBTASK 72-41-00-040-132 Install the Compressor Rear Outer Case on the HP Compressor Rear Cases and Vanes

SUBTASK 72-41-00-040-133 Install the Lift Fixture on the HP Compressor Rear Outer Case

SUBTASK 72-41-00-040-134 Install the HP Compressor Rear Cases and Vanes in the Checking Fixture

NOTE

SUBTASK 72-41-00-040-135 Assemble and set the Tools to Measure the Rotor Path Ring Radius

SUBTASK 72-41-00-040-136 Measure the Stage 12 Rotor Path Ring Radius

NOTE

SUBTASK 72-41-00-040-137 Measure the Stage 11 Rotor Path Ring Radius

NOTE

SUBTASK 72-41-00-040-138 Measure the Stage 10 Rotor Path Ring Radius

NOTE

SUBTASK 72-41-00-040-139 Measure the Stage 9 Rotor Path Ring Radius

NOTE