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
Common Information
TASK 72-32-00-430-010-B00 LPC/Intermediate Case Module - Install The LPC Booster Stage Assembly, Assembly-010
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 the SPM TASK 70-41-00-400-501 and SPM TASK 70-41-02-410-501 .
To identify, lubricate and install seal rings, refer to the SPM TASK 70-64-02-640-501.
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.
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.
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 stated differently in the procedure.
The No. 1 Strut, which is the top position strut of the Fan Frame, is identified by the five pressure tubes on the No. 1 Strut leading edge.
This TASK gives the procedure to install the LP Compressor Stage 1.5, 2 and 2.5 Assembly. For the installation of other parts of the LP Compressor/Intermediate Case Module, refer to TASK 72-32-00-430-000 (ASSEMBLY-000).
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| IAE 1J12530 Measuring stretch | 0AM53 | IAE 1J12530 | 1 | |
| IAE 1J12507 Guide pin | 0AM53 | IAE 1J12507 | 1 | |
| IAE 1J12505 0AM53 heater | 0AM53 | IAE 1J12505 | 1 | |
| IAE 1J12213 LPC Vertical sling | 0AM53 | IAE 1J12213 | 1 | |
| IAE 6F10027 Heater control unit | 0AM53 | IAE 6F10027 | 1 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 01-124 ISOPROPYL ALCOHOL | LOCAL | CoMat 01-124 | ||
| CoMat 04-004 JOINTING COMPOUND, LIGHT GRADE | LOCAL | CoMat 04-004 | ||
| CoMat 10-077 APPROVED ENGINE OILS | LOCAL | CoMat 10-077 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
Reference dimensions at location 0108. If required, use the data written as a note in TASK 72-32-81-200-000 (INSPECTION-000) and TASK 72-32-51-200-000 (INSPECTION-000).
Table 1. Fits and Clearances (all dimensions are in inches) NEW PART
WORN PART
DIMENSIONS
DIMENSIONS
PART IDENT
Size
Clearance
(Non-select)
REJECT IF
MORE THAN
LOCATION 0108
LP Compressor Booster Stage Disk Assembly V2500-A5-72-32-81-02A-941A-D (72-32-81, 02-200), Front Location Bore
Rotor Center Shaft ENGINE-LP STUB SHAFT AND ROTOR CENTRE (72-32-51, 01-100), Front Location Diameter
Disk Bore
11.8051
Inft
11.8032
0.0012
Shaft Diameter
11.8074
0.0042
11.8063
Intf
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 0108
LP Compressor Booster Stage Disk Assembly V2500-A5-72-32-05-02A-941A-D (72-32-81, 02-200), Front Location Bore
Rotor Center Shaft ENGINE-LP STUB SHAFT AND ROTOR CENTRE (72-32-51, 01-100), Front Location Diameter
Disk Bore
299.852
Inft
299.800
0.026
Shaft Diameter
299.910
0.110
299.878
Inft
SUBTASK 72-32-00-220-133 Reference Fits and Clearances of the LP Compressor Booster Stage Disk and the Rotor Center Shaft at Location 0108
Refer to Figure.
Make sure that the Fan Frame is installed horizontally on the turnover stand. Refer to TASK 72-32-00-430-006 (ASSEMBLY-006).
SUBTASK 72-32-00-430-200 Turn the Fan Frame to the Vertical with the Front End Up
Refer to Figure.
Clean the mating faces of the Stub Shaft and the measuring stretch with a clean lint free cloth made moist with CoMat 01-124 ISOPROPYL ALCOHOL.
Install the IAE 1J12530 Measuring stretch 1 off on to the Stub Shaft.
SUBTASK 72-32-00-430-201-A00 Measure the Interface Dimensions for the Installation of the LP Compressor Booster Stage Assembly (Pre SBE 72-0391)
Refer to Figure.
Clean the mating faces of the Stub Shaft and the measuring stretch with a clean lint free cloth made moist with CoMat 01-124 ISOPROPYL ALCOHOL.
Install the IAE 1J12530 Measuring stretch 1 off on to the Stub Shaft.
SUBTASK 72-32-00-430-201-B00 Measure the Interface Dimensions for the Installation of the LP Compressor Booster Stage Assembly (SBE 72-0391)
Refer to Figure.
Use a clean cloth made moist with CoMat 01-124 ISOPROPYL ALCOHOL to clean the mating faces.
Apply CoMat 04-004 JOINTING COMPOUND, LIGHT GRADE to the mating faces with a soft brush.
NOTE
Do not get the jointing compound into the threaded holes of the clinch nuts on the Stage 2.5 Vanes.Install the LP Compressor Stage 1.5, 2 and 2.5 Assembly to the Stage 2.5 Vanes before the jointing compound becomes dry.
SUBTASK 72-32-00-430-202 Apply Jointing Compound to the Mating Faces on the LP Compressor Stage 2.5 Vanes (Stage 2.5 Vanes)
Install the IAE 1J12213 LPC Vertical sling 1 off on to the disk front flange of the LPC Assembly, Figure.
NOTE
The LPC Assembly is installed on the storage stand in TASK 72-32-80-440-001-B00 (ASSEMBLY-001).Install the IAE 1J12505 0AM53 heater 1 off, Figure.
Connect the cables of the local heater to the IAE 6F10027 Heater control unit 1 off.
SUBTASK 72-32-00-430-203 Prepare the LP Compressor Booster Stage Assembly (LPC Assembly) for Installation of it to the Rotor Center Shaft and the Stage 2.5 Vanes
Increase the temperature of the disk front flange of the LPC Assembly to 248 deg F (120 deg C) with the local heater, Figure.
Install the three aligning pins (part of the IAE 1J12507 Guide pin 1 off) into three of the 24 nuts of the rotor center shaft. The three aligning pins must be installed at 120 degrees apart from each other, Figure.
Install the LPC Assembly on to the rotor center shaft before the LPC Assembly becomes cold Figure.
Remove the vertical sling, Figure.
Remove the four supports from the LPC Assembly, Figure.
NOTE
The holding support is installed to the LPC Assembly in TASK 72-32-80-440-001-A00 (ASSEMBLY-001) and TASK 72-32-80-440-001-B00 (ASSEMBLY-001).
SUBTASK 72-32-00-430-204 Install the LP Compressor Booster Stage Assembly (LPC Assembly) to the Rotor Center Shaft and the LP Compressor Stage 2.5 Vanes (Stage 2.5 Vane)
Figure: Install the Lock Pin into Position to Lock the Handle of the Turnover Stand
Install the Lock Pin into Position to Lock the Handle of the Turnover Stand

Figure: Measure the Interface Dimensions for the Installation of the LP Compressor Booster Stage Assembly
Measure the Interface Dimensions for the Installation of the LP Compressor Booster Stage Assembly

Figure: Apply Jointing Compound to the Mating Faces on the LP Compressor Stage 2.5 Vanes
Apply Jointing Compound to the Mating Faces on the LP Compressor Stage 2.5 Vanes

Figure: Install the Local heater on the LP Compressor Booster Stage Assembly
Install the Local heater on the LP Compressor Booster Stage Assembly

Figure: Install the LP Compressor Booster Stage Assembly on to the Rotor Center Shaft and the LP Compressor Stage 2.5 Vanes
Sheet 1

Figure: Install the LP Compressor Booster Stage Assembly on to the Rotor Center Shaft and the LP Compressor Stage 2.5 Vanes
Sheet 2

Figure: Remove the Holding Supports from the LP Compressor Booster Stage Assembly
Remove the Holding Supports from the LP Compressor Booster Stage Assembly

Figure: LP Compressor Booster Stage Disk and Rotor Centre Shaft Fits and Clearances
LP Compressor Booster Stage Disk and Rotor Centre Shaft Fits and Clearances

