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
V2500-A5 and Post SBE 72-0627
Common Information
TASK 72-41-20-440-001-C00 HPC Rear Cases And Vanes Assembly - Assemble The HPC Stage 7 Case And Stator Vanes, Assembly-001 (SBE 72-0627)
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.
For all parts identified in a different Chapter/Section/Subject the applicable Chapter/Section/Subject comes before the Fig/item number.
For standard torque data and procedures refer to SPM TASK 70-41-00-400-501, SPM TASK 70-41-01-400-501 and SPM TASK 70-41-02-410-501.
Special torque data and assembly tolerances are included in the procedure.
Lubricate all threads and abutment faces of nuts and bolts with CoMat 10-077 APPROVED ENGINE OILS unless other lubricants are referred to in the procedure.
After assembly apply CoMat 07-038 AIR DRYING ENAMEL to any damaged surface protection, joint flanges and parts used to attach. Use the correct color of the air drying enamel. Refer to SPM TASK 70-63-02-380-501.
The number for each radial location must be identified in a clockwise direction. These start at the engine top position when you look from the rear of the engine, unless otherwise specified in the procedure.
Refer to Figure for a sectional view of the HP compressor rear cases and vanes.
Make sure all the flange faces and tool faces that touch are very clean.
The Fits and Clearances, NEW PART DIMENSIONS and REJECT IF MORE THAN columns will be used by most operators. This permits the full use of the maximum wear allowance and a reduction in the number of parts which are rejected, is possible.
The column WORN PART DIMENSIONS (Non-select) is included for operators who want to have full interchangeability. If this column is used an increase in the number of parts which are rejected is possible.
After the part has been in service for some time the REJECT IF MORE THAN and WORN PART DIMENSIONS could be changed. The operator must tell IAE and if agreed the manual will be changed.
The abbreviation Intf shows an interference or tight fit. This causes REJECT IF MORE THAN to become REJECT IF LESS THAN.
The abbreviation clear shows a clearance fit.
This TASK gives the procedure to assemble the HP Compressor Stage 7 case, the vanes, the liners and the stator vane stops. The subsequent TASKS give the procedures to assemble the remaining HP Compressor rear cases and stator vanes.
Assemble the HP Compressor Stage 8 Case and Stator Vanes. TASK 72-41-20-440-002-C00 (ASSEMBLY-002).
Assemble the HP Compressor Stage 9 Case and Stator Vanes. TASK 72-41-20-440-003-C00 (ASSEMBLY-003).
Assemble the HP Compressor Stage 10 Case and Stator Vanes. TASK 72-41-20-440-004-C00 (ASSEMBLY-004).
Assemble the HP Compressor Stage 11 Case and Stator Vanes.TASK 72-41-20-440-005-C00 (ASSEMBLY-005).
Machine the Stator Vane Tips and the Rotor Path Ring Liners. TASK 72-41-20-440-006-C01 (ASSEMBLY-006).
Disassemble the HP Compressor Rear Cases and Vanes. TASK 72-41-20-440-007-B01 (ASSEMBLY-007) or TASK 72-41-20-440-007-B02 (ASSEMBLY-007).
NOTE
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Heating blanket | LOCAL | Heating blanket | ||
| Gloves | LOCAL | Gloves | Heat resistant | |
| IAE 1R18501 Stop alignment tool | 0AM53 | IAE 1R18501 | 1 | |
| IAE 1R18434 Case extractor | 0AM53 | IAE 1R18434 | 3 | |
| IAE 1R18636 Spanner Wrench | 0AM53 | IAE 1R18636 | 1 | |
| IAE 1R18637 Spanner Wrench | 0AM53 | IAE 1R18637 | 1 | |
| IAE 1R18684 Case extractor | 0AM53 | IAE 1R18684 | 1 | |
| IAE 1R19685 Assembly tool | 0AM53 | IAE 1R19685 | 1 | |
| IAE 1R19686 Assembly tool | 0AM53 | IAE 1R19686 | 1 | |
| IAE 1R18706 Assembly tool | 0AM53 | IAE 1R18706 | 1 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 07-038 AIR DRYING ENAMEL | k3504 | CoMat 07-038 | ||
| CoMat 10-077 APPROVED ENGINE OILS | X333X | CoMat 10-077 |
Spares
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| PIN - SHOULDER, HEADLESS, .0.1159 X 0.122 X 0.265 | LOCAL | 5306941 | 1 | |
| PIN - SHOULDER, HEADLESS, .0.1159 X 0.122 X 0.265 | LOCAL | 5306941 | 1 |
Safety Requirements
NONEProcedure
Refer to Figure.
Reference dimensions at Location 1147. If necessary, use the data written as a Note in TASK 72-41-21-200-000.
Table 1. 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 1147
Stage 7 Stator Vane Stop HPC Ring Cases And Related Parts (72-41-21, 03-480) Location In The
Stage 7 Stator Vane Stop Shank Diameter
0.2474
Clear
0.2494
0.0010
Stage 7 Case Stop Location Bore
0.2504
0.0061
0.2535
Clear
Table 2. Fits and Clearances (all dimensions are in millimeters) NEW PART
WORN PART
DIMENSIONS
DIMENSIONS
PART IDENT
Size
Clearance
(Non-select)
REJECT IF
MORE THAN
LOCATION 1147
Stage 7 Stator Vane Stop HPC Ring Cases And Related Parts (72-41-21, 03-480) Location In The
Stage 7 Stator Vane Stop Shank Diameter
6.285
Clear
6.335
0.025
Stage 7 Case Stop Location Bore
6.360
0.155
6.440
Clear
SUBTASK 72-41-20-220-219 Reference Fits and Clearances of the HP Compressor Rear Cases and Vanes at Location 1147
Refer to Figure.
Reference dimensions at Location 1187. If necessary, use the data written as a Note in TASK 72-41-21-200-000.
Table 3. Fits and Clearances (all dimensions are in millimeters) REFERENCE
WORN PART
DIMENSIONS
DIMENSIONS
DESCRIPTION
Size
Clearance
(Non-select)
REJECT IF
MORE THAN
LOCATION 1187
Stage 8 Case HPC Ring Cases And Related Parts (72-41-21, 03-500) Location With The
Front Support Cone Shoulder Pin HPC Ring Cases And Related Parts (72-41-21, 03-313)
Stage 8 Rotor Path Case Shoulder Pin Hole Bore
0.1638
Clear
0.1709
0.0054
Shoulder Pin Diameter
0.1580
0.0129
0.1584
Clear
Table 4. Fits and Clearances (all dimensions are in millimeters) REFERENCE
WORN PART
DIMENSIONS
DIMENSIONS
DESCRIPTION
Size
Clearance
(Non-select)
REJECT IF
MORE THAN
LOCATION 1187
Stage 8 Case HPC Ring Cases And Related Parts (72-41-21, 03-500) Location With The
Front Support Cone Shoulder Pin HPC Ring Cases And Related Parts (72-41-21, 03-313)
Stage 8 Rotor Path Case Shoulder Pin Hole Bore
4.16
Clear
4.34
0.136
Shoulder Pin diameter
4.012
0.328
4.024
Clear
SUBTASK 72-41-20-220-220 Reference Fits and Clearances of the HP Compressor Rear Cases and Vanes at Location 1187
Refer to Figure.
Reference dimensions at Location 1180. If necessary, use the data written as a Note in TASK 72-41-21-200-000.
Table 5. Fits and Clearances (all dimensions are in millimeters) REFERENCE
WORN PART
DIMENSIONS
DIMENSIONS
DESCRIPTION
Size
Clearance
(Non-select)
REJECT IF
MORE THAN
LOCATION 1180
Stage 8 Case HPC Ring Cases And Related Parts (72-41-21, 03-500) Location On The
Stage 7 Rotor Path Ring Shoulder Pin HPC Ring Cases And Related Parts (72-41-21, 03-300)
Stage 8 Case Inner Front Bore
21.344
Clear
21.348
0.002
Stage 7 Case Rear Outer Diameter
21.350
0.011
Flange Diameter
21.355
Clear
Table 6. Fits and Clearances (all dimensions are in millimeters) REFERENCE
WORN PART
DIMENSIONS
DIMENSIONS
DESCRIPTION
Size
Clearance
(Non-select)
REJECT IF
MORE THAN
LOCATION 1180
Stage 8 Case HPC Ring Cases And Related Parts (72-41-21, 03-500) Location On The
Stage 7 Rotor Path Ring HPC Ring Cases And Related Parts (72-41-21, 03-300)
Stage 8 Case Inner Front Bore
542.13
Clear
542.25
0.05
Stage 7 Case Rear Outer Diameter
542.30
0.29
Flange Diameter
542.42
Clear
SUBTASK 72-41-20-220-221 Reference Fits and Clearances of the HP Compressor Rear Cases and Vanes at Location 1180
Refer to Figure.
Use IAE 1R19685 Assembly tool to install the stage 7 front liner. Make sure the liner touches the stage 7 rotor path case rear face at location A. Refer to Figure.
Install the new HPC Ring Cases And Related Parts (72-41-21, 03-440) stage 7 front liner in to the slot in the rear of the stage 7 rotor path case HPC Ring Cases And Related Parts (72-41-21, 03-300).
Use IAE 1R19686 Assembly tool to install the Stage 7 rear liner. Make sure the liner touches the Stage 8 case at Location B. Refer to Figure.
Install the new HPC Ring Cases And Related Parts (72-41-21, 03-490) Stage 7 rear liner in to the slot in the Stage 7 and Stage 8 rotor path case HPC Ring Cases And Related Parts (72-41-21, 03-500).
SUBTASK 72-41-20-440-255 Install the Liners in the Stage 7 and Stage 8 Rotor Path Cases
Refer to Figure.
Use the IAE 1R18501 Stop alignment tool and align the stage 7 stator vane stop in the Stage 8 rotor path case.
Install a washer HPC Ring Cases And Related Parts (72-41-21, 03-479) and a nut HPC Ring Cases And Related Parts (72-41-21, 03-478) on to the Stage 7 stator vane stop.
Install the Stage 7 stator vane stops HPC Ring Cases And Related Parts (72-41-21, 03-480) in the Stage 8 rotor path case HPC Ring Cases And Related Parts (72-41-21, 03-500).
SUBTASK 72-41-20-440-256 Install the Stator Vane Stops in the Stage 8 Rotor Path Case
Install the four Stage 7 stop vanes in to the Stage 8 rotor path case HPC Ring Cases And Related Parts (72-41-21, 03-500) at the Stage 7 stator vane stops HPC Ring Cases And Related Parts (72-41-21, 03-480). Engage the vanes in the Stage 7 rear liner HPC Ring Cases And Related Parts (72-41-21, 03-490). Make sure the Stage 7 stator vane stops are engaged in the slots in the Stage 7 stop vane platforms.
Install the Stage 7 stop vanes HPC Stator Vanes (72-41-22, 02-350).
Install the vanes in a counter-clockwise direction. Engage each of the vanes in the Stage 7 rear liner. Make sure the platform of the first vane that is installed touches the platform of the Stage 7 stop vane. Push each subsequent vane counter-clockwise as it is installed, until the vane platforms touch.
Install three Stage 7 stator vanes HPC Stator Vanes (72-41-22, 02-400).
Install one Stage 7 undersize stator vanes HPC Stator Vanes (72-41-22, 02-450).
Install one Stage 7 stator vane HPC Stator Vanes (72-41-22, 02-400).
Install one Sstage 7 stator vane HPC Stator Vanes (72-41-22, 02-448).
Install one Stage 7 stator vane HPC Stator Vanes (72-41-22, 02-400).
Install one Stage 7 stator vane HPC Stator Vanes (72-41-22, 02-448).
Install one Stage 7 stator vane HPC Stator Vanes (72-41-22, 02-400).
Install one Stage 7 stator vane HPC Stator Vanes (72-41-22, 02-448).
Install two Stage 7 stator vanes HPC Stator Vanes (72-41-22, 02-400).
Install one Stage 7 undersize stator vane HPC Stator Vanes (72-41-22, 02-450).
Install three Stage 7 stator vanes HPC Stator Vanes (72-41-22, 02-400).
Install one Stage 7 undersize stator vane HPC Stator Vanes (72-41-22, 02-450).
Install four Stage 7 stator vanes HPC Stator Vanes (72-41-22, 04-400).
Install the Stage 7 stator vanes in the subsequent sequence.
Install the Stage 7 stator vanes (HPC Stator Vanes 72-41-22, 02-150 (Pre SBE 72-0441), HPC Stator Vanes 02-400, HPC Stator Vanes 02-448 and HPC Stator Vanes 02-450) between the stage 7 stop vanes at the 10 o'clock and 1 o'clock positions.
Install the Stage 7 stator vanes (HPC Stator Vanes 72-41-22, 02-150 (Pre SBE 72-0441), HPC Stator Vanes 02-400, HPC Stator Vanes 02-448 and HPC Stator Vanes 02-450) between the Stage 7 stop vanes in the remaining three segments. Use the sequence given in Step.
SUBTASK 72-41-20-440-257 Install the Stage 7 Stator Vanes (Pre SBE 72-0441 and SBE 72-0441)
Put the Stage 8 rotor path case assembly HPC Ring Cases And Related Parts (72-41-21, 03-500) rear flange down on to a clean work surface.
Install the heating blanket on to the Stage 8 rotor path case assembly HPC Ring Cases And Related Parts (72-41-21, 03-500).

WARNING
YOU MUST PUT ON THE CORRECT PROTECTIVE GLOVES BEFORE YOU TOUCH THE STAGE 8 ROTOR PATH CASE ASSEMBLY.Align the shoulder pin in the Stage 7 cone and rotor path assembly HPC Ring Cases And Related Parts (72-41-21, 03-300) with the shoulder pin hole in the Stage 8 rotor path case assembly front flange.
SUBTASK 72-41-20-440-258 Install the Stage 7 Cone and Rotor Path Assembly to the Stage 8 Rotor Path Case Assembly
Refer to Figure.
SUBTASK 72-41-20-220-222 Measure the Interplatform Clearances
NOTE
To get the specified interplatform clearance at the four Stage 7 stop vanes HPC Stator Vanes(72-41-22, 02-350), use the Stage 7 undersize stator vanes HPC Stator Vanes(72-41-22, 02-450) or Stage 7 stator vanes HPC Stator Vanes (72-41-22, 02-448) as necessary.NOTE
A maximum of six undersize vanes can be used between the two adjacent stop vanes. These must be set at equal distances between the stop vanes.Remove the eight slave bolts installed in Step.

WARNING
YOU MUST PUT ON HEAT RESISTANT GLOVES BEFORE YOU TOUCH THE STAGE 7 ROTOR PATH RING.Install IAE 1R18684 Case extractor or IAE 1R18434 Case extractor, equally spaced. Refer to Figure.
Remove the Stage 7 cone and rotor path assembly.

CAUTION
UNDERSIZE VANES MUST NOT BE INSTALLED ADJACENT TO THE STOP VANES, THE BORESCOPE POSITION OR OTHER UNDERSIZE VANES.Remove the Stage 7 stator vanes HPC Stator Vanes (72-41-22, 02-448 or HPC Stator Vanes 02-450) and install the Stage 7 undersize vanes as necessary. One Stage 7 undersize stator vane will give an increase or decrease in the interplatform clearance of 0.016 in. (0.40 mm).
Install the Stage 7 cone and rotor path assembly as given in Step.
Measure and write a record of the interplatform clearances at the Stage 7 stop vanes as given in Step.
SUBTASK 72-41-20-440-259 Install the Stage 7 Undersize Vanes
Install the 47 bolts HPC Assembly (72-41-00, 01-552) from the stage 7 cone and rotor path case assembly HPC Ring Cases And Related Parts (72-41-21,03-300). front flange. Make sure the bolts are correctly installed on the stage 8 rotor path case assembly front flange.
Install the 47 nuts HPC Assembly (72-41-00, 01-550) on bolts.
Use the IAE 1R18636 Spanner Wrench to tighten the nuts.
Use the IAE 1R18637 Spanner Wrench to torque the nuts. Torque the nuts in the correct sequence to 36 lbfin to 45 lbfin. (4.00 Nm to 5.00 Nm).
SUBTASK 72-41-20-440-260 Install the Bolts, and the Nuts in the Stage 8 Rotor Path Case Assembly Front Flange
Figure: View Through The HP Compressor Rear Cases And Vanes
View Through The HP Compressor Rear Cases And Vanes

Figure: The Locations For The Fits And Clearances
The Locations For The Fits And Clearances

Figure: Install The Stage 7 Liners
Install The Stage 7 Liners

Figure: Install The Stage 7 Stator Vane Stops
Install The Stage 7 Stator Vane Stops

Figure: Assemble The Front Support Cone And The Stage 7 Rotor Path Ring And Case
Assemble The Front Support Cone And The Stage 7 Rotor Path Ring And Case

Figure: Assemble The Front Support Cone And The Stage 8 Rotor Path Case
Assemble The Front Support Cone And The Stage 8 Rotor Path Case

Figure: Install The Stage 7 Stator Vanes
Install The Stage 7 Stator Vanes

Figure: Install The Stage 7 Stator Vanes
Install The Stage 7 Stator Vanes

Figure: Measure The Stator Vane Interplatform Clearances
Measure The Stator Vane Interplatform Clearances

Figure: Remove The Stage 7 Rotor Path Ring
Remove The Stage 7 Rotor Path Ring

