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 72-00-40-020-005-B00 HP System Module - Remove The Partial HP System Module (Vertical), Removal-006
General
This TASK gives the procedure to remove the partial HP system module in the vertical position. Other related TASKS are:
TASK 72-00-40-560-001 (REMOVAL-005) Turn the LP compressor/intermediate case module and the partial HP system module from the horizontal to the vertical.
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 or parts with an interference fit. Let the parts soak before removal.
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| IAE 1F10052 Two cables sling | 0AM53 | IAE 1F10052 | 1 | |
| IAE 1P16043 Lift and turn fixture | 0AM53 | IAE 1P16043 | 1 | |
| IAE 1P16284 Hand wrench | 0AM53 | IAE 1P16284 | 1 | |
| IAE 1R18673 Dummy stub shaft | 0AM53 | IAE 1R18673 | 1 | |
| IAE 1R18075 Support pedestal | 0AM53 | IAE 1R18075 | 1 | |
| IAE 1R18090 Safety support stand | 0AM53 | IAE 1R18090 | 1 | |
| IAE 1R18214 Build stand | 0AM53 | IAE 1R18214 | 1 | |
| IAE 1R18222 Support rod | 0AM53 | IAE 1R18222 | 2 | |
| IAE 1R18230 Wrench | 0AM53 | IAE 1R18230 | 1 | |
| IAE 1R18234 Support rod | 0AM53 | IAE 1R18234 | 3 | |
| IAE 1R18247 Rigging pin | 0AM53 | IAE 1R18247 | 1 | |
| IAE 1R18423 Rigging pin | 0AM53 | IAE 1R18423 | 1 | |
| IAE 1R18893 Riggingpin | 0AM53 | IAE 1R18893 | 1 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 01-002 SOLVENT, DELETED. | 0AM53 | CoMat 01-002 | ||
| CoMat 04-005 JOINTING COMPOUND, MEDIUM GRADE | LOCAL | CoMat 04-005 | ||
| CoMat 10-058 PENETRATING OIL | 0AM53 | CoMat 10-058 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
Engage the fixture nut on to the thread on the end of the HP compressor shaft and tighten the nut. Use IAE 1P16284 Hand wrench 1 off.
Put the sleeve (part of IAE 1P16043 Lift and turn fixture 1 off) on to the HP compressor shaft.
Attach the hoist to the lift eye on IAE 1F10052 Two cables sling 1 off.
Install the Fixture assembly on to the Diffuser case rear flange.
SUBTASK 72-00-40-020-146 Install the Lift and Turn Fixture on to the Rear of the Diffuser Case Assembly
Refer to Figure.
Install IAE 1R18247 Rigging pin 1 off or IAE 1R18423 Rigging pin 1 off or IAE 1R18893 Riggingpin 1 off through the bracket and in to the HP compressor cases to lock the variable stator vanes.
Install IAE 1R18234 Support rod 3 off.
SUBTASK 72-00-40-020-147 Install the HP Compressor Support Rods
Refer to Figure.
Use IAE 1R18230 Wrench 1 off to release and remove the curvic bolts from the No. 3 bearing rotor center.
SUBTASK 72-00-40-020-148 Remove the Bolts from the HP Compressor Stage 3 Disk Curvic Coupling
Refer to Figure.
SUBTASK 72-00-40-020-215 Remove the Parts that Attach the LP Compressor/Intermediate Case Module and the HP System Module Joint Flanges (SBE 72-0290)
Refer to Figure.
SUBTASK 72-00-40-020-149 Remove the Parts that Attach the LP Compressor/Intermediate Case Module and the HP System Module Joint Flanges (Pre SBE 72-0290)
Refer to Figure.
SUBTASK 72-00-40-020-150 Remove the Partial HP System Module from the LP Compressor/Intermediate Case Module
Refer to Figure.
Lower the partial HP system module on to IAE 1R18090 Safety support stand 1 off. The HP compressor front flange must touch the safety support stand pads. Do not release the lift sling hold.
SUBTASK 72-00-40-020-151 Prepare the Partial HP System Module for Interface Inspection
Visually examine the partial HP system module and the LP compressor/intermediate case module at interfaces C-32 and C-41. Refer to TASK 72-00-00-200-002.
SUBTASK 72-00-40-220-105 Visually Examine the Interfaces
Refer to Figure.
Install the IAE 1R18673 Dummy stub shaft 1 off in to the IAE 1R18075 Support pedestal 1 off. Make sure the curvic protector is at the rear.

WARNING
WHEN YOU USE COMAT 01-002 INHIBITED AND STABLIZED TRICHLOROETHANE YOU MUST USE THE NECESSARY PROTECTIVE CLOTHING. DO NOT GET THE SOLVENT ON YOUR SKIN OR IN YOUR EYES. YOU MUST NOT SMOKE WHEN YOU USE THE SOLVENT AS THE VAPOR CHANGES AND BECOMES TOXIC.Use a soft brush and apply CoMat 01-002 SOLVENT, DELETED. to the curvic teeth.
Clean the curvic teeth on the dummy stub shaft and the HP compressor stage 3 disk.
SUBTASK 72-00-40-020-152 Install the Dummy Stub Shaft on to the Partial HP System Module
Refer to Figure.
Install IAE 1R18222 Support rod 2 off on to the IAE 1R18214 Build stand 1 off.
Lift the partial HP system module off the pedestal build stand and carefully lower on to the build stand. Make sure the support ring splitline is aligned with the HP compressor front cases splitline. Also align the support ring location pins with the applicable hole in the HP compressor front flange.
SUBTASK 72-00-40-020-153 Install the Partial HP System Module on to the Build Stand
Put a thin layer of CoMat 04-005 JOINTING COMPOUND, MEDIUM GRADE on to the bracket where it touches the blank.
Install one of the blanks HP COMPRESSOR SPLIT CASE (72-41-31, 01-120), the bracket HP COMPRESSOR SPLIT CASE (72-41-31, 01-118) and two of the bolts HP COMPRESSOR SPLIT CASE (72-41-31, 01-122) in to the HP compressor at location C.
Put a thin layer of CoMat 04-005 JOINTING COMPOUND, MEDIUM GRADE on the bracket where it touches the blank.
Install one of the blanks HP COMPRESSOR SPLIT CASE (72-41-31, 01-120), the bracket HP COMPRESSOR SPLIT CASE (72-41-31, 01-115) and two of the bolts HP COMPRESSOR SPLIT CASE (72-41-31, 01-122) in the HP compressor at location A.
Install the other blank HP COMPRESSOR SPLIT CASE (72-41-31, 01-120) and the other bolts HP COMPRESSOR SPLIT CASE (72-41-31, 01-122) in to the HP compressor at location B. Torque the bolts to 85 to 105 lbf.in (10 to 12 Nm).
Remove the support rods.
Remove the fixture nut. Use IAE 1P16284 Hand wrench 1 off.
Remove the lift and turn fixture from the rear of the diffuser case assembly.
SUBTASK 72-00-40-020-154 Remove the Hoist, the Lift and Turn Fixture and the HP Compressor Support Rods
Figure: Install the lift and turn fixture on to the partial HP system module
Sheet 1

Figure: Install the lift and turn fixture on to the partial HP system module
Sheet 2

Figure: Install the support rods in to the HP compressor
Install the support rods in to the HP compressor

Figure: Install the support rods in to the HP compressor
Sheet 2

Figure: Remove the stage 3 HP compressor curvic bolts
Remove the stage 3 HP compressor curvic bolts

Figure: LP compressor/intermediate case module to HP system module joint flange hole positions
LP compressor/intermediate case module to HP system module joint flange hole positions

Figure: Install the partial HP system module on to the safety support stand
Install the partial HP system module on to the safety support stand

Figure: Install the dummy stub shaft on to the stage 3 disk curvic coupling
Install the dummy stub shaft on to the stage 3 disk curvic coupling

Figure: Install the partial HP system module on to the build stand
Install the partial HP system module on to the build stand

