DOC AIRBUS | AMM A320FInstallation of the LP Compressor (Fan) Module [IAE]
TASK 72-31-00-400-010-B
Installation of the LP Compressor (Fan) Module
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 72-31-00-860-051-A ** ON A/C NOT FOR ALL
Subtask 72-31-00-480-053-A ** ON A/C NOT FOR ALL
Subtask 72-31-00-410-063-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 13:00:54 UTC
Installation of the LP Compressor (Fan) Module
WARNING:
BE CAREFUL DURING THE REMOVAL/INSTALLATION OF THE LP COMPRESSOR (FAN) MODULE. IT WEIGHS APPROXIMATELY 395lb (179kg).
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 1M(3 FT) |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 567 and 443 lbf.in (6.41 and 5.01 m.daN )  | |
| No specific | Torque wrench: range to between 1133 and 885 lbf.in (12.80 and 10.00 m.daN ) | |
| IAE1J12016 | 1 | WRENCH-SPECIAL |
| IAE1J12017 | 1 | WRENCH-SPECIAL |
| IAE1J12019 | 1 | STAND - TRANSPORT |
| IAE1J12026 | 1 | HANDLE - TURNING |
| IAE1J12100 | 1 | SLING-CANTILEVER |
| IAE1J12104 | 1 | ADAPTER-SLING |
| IAE1J12106 | 1 | PIN-ALIGNING |
| IAE1J12110 | 1 | STAND-STORAGE |
| IAE1J12180 | 1 | PROTECTOR-HUB |
| IAE1J12181 | 1 | COVER-PROTECTION |
| IAE1J12182 | 1 | PROTECTOR-RETAINING |
| IAE1J12183 | 1 | COVER-PROTECTION |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V01-124) | Isopropyl Alcohol, Technical grade |
| (Material No.V06-069) | marker |
| (Material No.V10-077) | lubricant (engine oil) |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 70-23-11-911-013-A | General Torque Tightening Techniques |
| TASK 71-00-00-700-022-B | Test No.8 : Vibration Survey |
| TASK 71-11-11-400-010-B | Installation of the Air Intake Cowl |
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 71-13-00-410-010-A | Closing of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 72-38-11-400-010-A | Installation of the Inlet Cone |
Storage StandSubtask 72-31-00-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position to give access to the engine for the removal and installation of the fan module.
4. Procedure(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position to give access to the engine for the removal and installation of the fan module.
Subtask 72-31-00-480-053-A ** ON A/C NOT FOR ALL
A. Prepare the storage stand
(1) Put the IAE1J12110 STAND-STORAGE or IAE1J12019 STAND - TRANSPORT, which contains the fan module that is to be installed, adjacent to the work area.
(2) If the storage stand, IAE1J12110, is to be used
(a) Remove the wing nut that safeties the clamp of the storage stand.
(b) Remove the clamp.
Subtask 72-31-00-480-054-A ** ON A/C NOT FOR ALL (1) Put the IAE1J12110 STAND-STORAGE or IAE1J12019 STAND - TRANSPORT, which contains the fan module that is to be installed, adjacent to the work area.
(2) If the storage stand, IAE1J12110, is to be used
(a) Remove the wing nut that safeties the clamp of the storage stand.
(b) Remove the clamp.
B. Install the slinging tools to the fan module, if it is on IAE1J12110 STAND-STORAGE.
(2) Move the sling adapter, IAE1J12104, above the fan module.
(3) Lower the sling adapter, IAE1J12104, on to the forward flange of the fan module.
(4) Install the twelve bolts of the sling adapter.
(5) Tighten the bolts.
(6) Remove the first hoist from the link of the sling adapter, IAE1J12104.
(7) Attach a second hoist to the shackle of the IAE1J12100 SLING-CANTILEVER.
(8) Move the cantilever sling, IAE1J12100, adjacent to the sling adapter, IAE1J12104.
(9) Install the cantilever sling, IAE1J12100, to the sling adapter, IAE1J12104.
(10) Safety the cantilever sling to the sling adapter with the quick release pin.
(11) Turn the adjustment handle of the cantilever sling to align the witness hole in the side plate with the S2-mark on the beam.
(12) Lock the adjustment handle in position.
(13) Attach the first hoist to the lifting ring of the cantilever sling, IAE1J12100,
(14) Install and hold the hoist rope of the first hoist in the brackets of the cantilever sling, IAE1J12100.
(15) Install the quick release pin in the outer holes of the brackets.
(16) Remove the second hoist from the shackle of the IAE1J12100 SLING-CANTILEVER.
(17) Attach the second hoist to the link of the sling adapter, IAE1J12104.
Subtask 72-31-00-480-055-A ** ON A/C NOT FOR ALL WARNING:
BE CAREFUL DURING THE INSTALLATION OF THE CANTILEVER SLING, IAE1J12100, AND THE SLING ADAPTER, IAE1J12104. THE SLING WEIGHS 165 LB (75 KG) AND THE ADAPTER WEIGHS 74 LB (34 KG). IF THEY FALL, THEY CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
(1) Attach the first IAE1J12104 ADAPTER-SLING to the link of the hoist. (2) Move the sling adapter, IAE1J12104, above the fan module.
(3) Lower the sling adapter, IAE1J12104, on to the forward flange of the fan module.
(4) Install the twelve bolts of the sling adapter.
(5) Tighten the bolts.
(6) Remove the first hoist from the link of the sling adapter, IAE1J12104.
(7) Attach a second hoist to the shackle of the IAE1J12100 SLING-CANTILEVER.
(8) Move the cantilever sling, IAE1J12100, adjacent to the sling adapter, IAE1J12104.
(9) Install the cantilever sling, IAE1J12100, to the sling adapter, IAE1J12104.
(10) Safety the cantilever sling to the sling adapter with the quick release pin.
(11) Turn the adjustment handle of the cantilever sling to align the witness hole in the side plate with the S2-mark on the beam.
(12) Lock the adjustment handle in position.
(13) Attach the first hoist to the lifting ring of the cantilever sling, IAE1J12100,
(14) Install and hold the hoist rope of the first hoist in the brackets of the cantilever sling, IAE1J12100.
(15) Install the quick release pin in the outer holes of the brackets.
(16) Remove the second hoist from the shackle of the IAE1J12100 SLING-CANTILEVER.
(17) Attach the second hoist to the link of the sling adapter, IAE1J12104.
C. Install the slinging tools to the fan module, if it is on the IAE1J12019 STAND - TRANSPORT.
(2) Move the sling adapter, IAE 1J12104, on to the work bench and remove the first hoist from the link.
(3) Attach the second hoist to the shackle of the cantilever sling, IAE 1J12100.
(4) Lift and attach the cantilever sling, IAE 1J12100, to the sling adapter, IAE 1J12104, and safety them with the quick release pin.
(5) Attach the first hoist to the lifting ring of the cantilever sling, IAE 1J12100.
(6) Adjust the two hoists to turn the assembled slinging tools to the horizontal position.
(7) Install the IAE1J12180 PROTECTOR-HUB, in to the fan disk.
(8) Remove the screws:
(9) Remove the hub protector, IAE 1J12180, from the fan disk.
(10) Turn the adjustment handle to align the witness hole in the side plate with the S1-mark on the cantilever sling, IAE 1J12100, beam.
(11) Lock the adjustment handle in position.
(12) Install the assembled slinging tools to the fan module.
(13) Turn the adjustment handle to align the witness hole in the side plate with the S2-mark on the cantilever sling, IAE 1J12100, beam.
(14) Lock the adjustment handle in position.
Subtask 72-31-00-550-056-A ** ON A/C NOT FOR ALL WARNING:
BE CAREFUL DURING THE INSTALLATION OF THE CANTILEVER SLING, IAE1J12100, AND THE SLING ADAPTER, IAE1J12104. THE SLING WEIGHS 165 LB (75 KG) AND THE ADAPTER WEIGHS 74 LB (34 KG). IF THEY FALL, THEY CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
(1) Attach the first hoist to the link of the sling adapter, IAE 1J12104, and lift it. (2) Move the sling adapter, IAE 1J12104, on to the work bench and remove the first hoist from the link.
(3) Attach the second hoist to the shackle of the cantilever sling, IAE 1J12100.
(4) Lift and attach the cantilever sling, IAE 1J12100, to the sling adapter, IAE 1J12104, and safety them with the quick release pin.
(5) Attach the first hoist to the lifting ring of the cantilever sling, IAE 1J12100.
(6) Adjust the two hoists to turn the assembled slinging tools to the horizontal position.
(7) Install the IAE1J12180 PROTECTOR-HUB, in to the fan disk.
(8) Remove the screws:
CAUTION:
CAREFULLY USE THE SPECIAL WRENCH TO PREVENT DAMAGE TO THE STAGE 1 FAN DISK WHEN YOU INSTALL/REMOVE AND TIGHTEN/LOOSEN THE SCREWS.
(a) Remove the 24 screws which attach the LP compressor (FAN) module to the support of the storage stand, IAE 1J12019. Use the special wrench, IAE 1J12016. (9) Remove the hub protector, IAE 1J12180, from the fan disk.
(10) Turn the adjustment handle to align the witness hole in the side plate with the S1-mark on the cantilever sling, IAE 1J12100, beam.
(11) Lock the adjustment handle in position.
(12) Install the assembled slinging tools to the fan module.
(13) Turn the adjustment handle to align the witness hole in the side plate with the S2-mark on the cantilever sling, IAE 1J12100, beam.
(14) Lock the adjustment handle in position.
D. If the fan module is on the storage stand, IAE1J12110 do the following:
(a) Adjust the two hoists slowly and equally until the fan module gets clear of the storage stand, IAE 1J12110,
(b) Remove the quick release pin from the outer holes in the brackets of the cantilever sling, IAE 1J12100, and install the pin in the inner holes of the brackets.
(c) Adjust the two hoists to turn the fan module to the horizontal position.
(d) Remove the second hoist from the link of the sling adapter, IAE1J12104.
Subtask 72-31-00-550-057-A ** ON A/C NOT FOR ALL WARNING:
USE APPLICABLE GLOVES WHEN YOU TOUCH THE FAN BLADES.
THE LEADING EDGES OF THE FAN BLADES ARE SHARP AND CAN CAUSE INJURY.
CAUTION:
DO THIS OPERATION WITH TWO HOIST OPERATORS AND TWO PERSONS TO HELP.
CAUTION:
MAKE SURE THAT THE QUICK RELEASE PIN IS INSTALLED IN THE INNER HOLES IN THE BRACKET OF THE CANTILEVER SLING BEFORE YOU MOVE THE FAN MODULE/SLINGING TOOL ASSEMBLY.
(1) Remove the fan module from the storage stand (a) Adjust the two hoists slowly and equally until the fan module gets clear of the storage stand, IAE 1J12110,
(b) Remove the quick release pin from the outer holes in the brackets of the cantilever sling, IAE 1J12100, and install the pin in the inner holes of the brackets.
(c) Adjust the two hoists to turn the fan module to the horizontal position.
(d) Remove the second hoist from the link of the sling adapter, IAE1J12104.
E. If the fan module is on the storage stand, IAE1J12019 do the following:
(a) Adjust the two hoists slowly and equally until the fan module gets clear of the IAE1J12019 STAND - TRANSPORT.
Subtask 72-31-00-630-051-A ** ON A/C NOT FOR ALL WARNING:
USE APPLICABLE GLOVES WHEN YOU TOUCH THE FAN BLADES.
THE LEADING EDGES OF THE FAN BLADES ARE SHARP AND CAN CAUSE INJURY.
CAUTION:
DO THIS OPERATION WITH TWO HOIST OPERATORS AND TWO PERSONS TO HELP.
(1) Remove the fan module from the storage stand (a) Adjust the two hoists slowly and equally until the fan module gets clear of the IAE1J12019 STAND - TRANSPORT.
F. Remove the protection covers
(1) If the storage stand, IAE1J12110, was used, remove the protection cover, IAE1J12181 COVER-PROTECTION, from the rear flange of the stage 1 fan disk.
(2) Remove the protection cover, IAE1J12183 COVER-PROTECTION, from the fan case of the LP compressor/intermediate case module.
(3) Remove the three bolts which attach the retaining protector, IAE1J12182 PROTECTOR-RETAINING, to the stub shaft one at a time.
(4) Replace each bolt with an IAE1J12106 PIN-ALIGNING.
(5) Remove the retaining protector, IAE 1J12182, from the stub shaft.
(6) Install each IAE1J12106 PIN-ALIGNING to the correct depth mark.
Subtask 72-31-00-110-051-A ** ON A/C NOT FOR ALL (1) If the storage stand, IAE1J12110, was used, remove the protection cover, IAE1J12181 COVER-PROTECTION, from the rear flange of the stage 1 fan disk.
(2) Remove the protection cover, IAE1J12183 COVER-PROTECTION, from the fan case of the LP compressor/intermediate case module.
(3) Remove the three bolts which attach the retaining protector, IAE1J12182 PROTECTOR-RETAINING, to the stub shaft one at a time.
(4) Replace each bolt with an IAE1J12106 PIN-ALIGNING.
(5) Remove the retaining protector, IAE 1J12182, from the stub shaft.
(6) Install each IAE1J12106 PIN-ALIGNING to the correct depth mark.
G. Clean the two halves of the curvic coupling
(1) Make a clean Textile-Lint free Cotton - (Material No.14SBA1) moist withV01-124 Isopropyl Alcohol, Technical grade
(2) Use the cloth to clean the two halves of the stage 1 fan disk to stub shaft curvic coupling.
Subtask 72-31-00-210-052-A ** ON A/C NOT FOR ALL (1) Make a clean Textile-Lint free Cotton - (Material No.14SBA1) moist with
(2) Use the cloth to clean the two halves of the stage 1 fan disk to stub shaft curvic coupling.
H. Examine the curvic coupling and other parts for damage
(1) Make sure that the teeth on the two halves of the curvic coupling have no damage.
(2) Make sure that the surfaces of the other parts between the rear face of the fan module and the LP compressor/intermediate case module have no damage.
Subtask 72-31-00-420-058-A ** ON A/C NOT FOR ALL (1) Make sure that the teeth on the two halves of the curvic coupling have no damage.
(2) Make sure that the surfaces of the other parts between the rear face of the fan module and the LP compressor/intermediate case module have no damage.
I. Put the fan module on the stub shaft
(1) Make a line mark on the stage 1 fan disk.
(a) Find the correlation mark (*) on the disk outer diameter face.
(b) Make a line on the disk inner diameter face with a marker (Material No.V06-069) . The line must be at the same angular position as the correlation mark (*).
(2) Install IAE1J12026 HANDLE - TURNING to the stub shaft with the two washers and wing bolts. Tighten the wing bolts.
(3) Adjust the angular position of the stub shaft.
(a) Find the correlation mark in the stub shaft.
(b) Turn the stub shaft with the IAE1J12026 HANDLE - TURNING so that the correlation mark (*) comes to the same angular position as the line mark on the disk made in step (1).
(4) Remove IAE1J12026 HANDLE - TURNING from the stub shaft.
(5) Lift the fan module and move it in to the fan case of the LP compressor/intermediate case module.
(6) Make sure that the correlation mark (*) on the stub shaft and the line mark on the disk are aligned.
(7) Move the fan module rearwards until the two halves of the curvic coupling are engaged.
(8) Make sure that the three IAE1J12106 PIN-ALIGNING, and the guide pins (10) are engaged with the holes in the stage 1 fan disk flange.
Subtask 72-31-00-420-059-A ** ON A/C NOT FOR ALL (1) Make a line mark on the stage 1 fan disk.
(a) Find the correlation mark (*) on the disk outer diameter face.
(b) Make a line on the disk inner diameter face with a marker (Material No.V06-069) . The line must be at the same angular position as the correlation mark (*).
(2) Install IAE1J12026 HANDLE - TURNING to the stub shaft with the two washers and wing bolts. Tighten the wing bolts.
(3) Adjust the angular position of the stub shaft.
(a) Find the correlation mark in the stub shaft.
(b) Turn the stub shaft with the IAE1J12026 HANDLE - TURNING so that the correlation mark (*) comes to the same angular position as the line mark on the disk made in step (1).
(4) Remove IAE1J12026 HANDLE - TURNING from the stub shaft.
(5) Lift the fan module and move it in to the fan case of the LP compressor/intermediate case module.
(6) Make sure that the correlation mark (*) on the stub shaft and the line mark on the disk are aligned.
(7) Move the fan module rearwards until the two halves of the curvic coupling are engaged.
(8) Make sure that the three IAE1J12106 PIN-ALIGNING, and the guide pins (10) are engaged with the holes in the stage 1 fan disk flange.
J. Attach the stage 1 fan disk to the stub shaft with the four curvic coupling bolts (1) at the N°5, 6, 7 and 8 positions.
(1) Apply cleanV10-077 lubricant (engine oil)
(2) Find the three pins, IAE1J12106. The positions are the N°1, 18 and 23.
Subtask 72-31-00-420-060-A ** ON A/C NOT FOR ALL (1) Apply clean
(2) Find the three pins, IAE1J12106. The positions are the N°1, 18 and 23.
CAUTION:
DO NOT HIT THE STAGE 1 FAN DISK WITH THE SPECIAL WRENCH WHEN YOU INSTALL AND TIGHTEN THE CURVIC COUPLING BOLTS. THE TOOL CAN CAUSE DAMAGE TO THE DISK.
(3) Find the N°5 thru 8 positions. K. Tighten the curvic coupling bolts.
(1) Tighten the curvic coupling bolts (1) lightly in sequence, use the IAE1J12016 WRENCH-SPECIAL.
Subtask 72-31-00-080-052-A ** ON A/C NOT FOR ALL (1) Tighten the curvic coupling bolts (1) lightly in sequence, use the IAE1J12016 WRENCH-SPECIAL.
L. Remove the support and slinging tools from the fan module
(1) Turn the adjustment handle of the cantilever sling, IAE 1J12100, to align the witness hole in the side plate with the S1-mark on the cantilever sling beam.
(2) Lock the adjustment handle in position.
(3) Remove the twelve bolts which attach the sling adapter, IAE1J12104, to the forward flange of the fan module.
(4) Slowly move the assembled slinging tools forward until they are clear of the fan cowls.
(5) Attach the second hoist to the link of the sling adapter, IAE1J12104, and turn the assembled slinging tools to the vertical position.
(6) Lower the assembled slinging tools on to a work bench.
(7) Disengage the quick release pin which attaches the cantilever sling, IAE 1J12100, to the sling adapter, IAE 1J12104.
(8) Remove the second hoist from the link of the sling adapter, IAE1J12104, and attach it to the shackle of the cantilever sling, IAE1J12100.
(9) Remove the first hoist from the lifting ring of the cantilever sling, IAE1J12100.
(10) Lift the cantilever sling, IAE1J12100, with the second hoist and remove it from the sling adapter, IAE1J12104.
Subtask 72-31-00-420-061-A ** ON A/C NOT FOR ALL (1) Turn the adjustment handle of the cantilever sling, IAE 1J12100, to align the witness hole in the side plate with the S1-mark on the cantilever sling beam.
(2) Lock the adjustment handle in position.
(3) Remove the twelve bolts which attach the sling adapter, IAE1J12104, to the forward flange of the fan module.
(4) Slowly move the assembled slinging tools forward until they are clear of the fan cowls.
(5) Attach the second hoist to the link of the sling adapter, IAE1J12104, and turn the assembled slinging tools to the vertical position.
(6) Lower the assembled slinging tools on to a work bench.
(7) Disengage the quick release pin which attaches the cantilever sling, IAE 1J12100, to the sling adapter, IAE 1J12104.
(8) Remove the second hoist from the link of the sling adapter, IAE1J12104, and attach it to the shackle of the cantilever sling, IAE1J12100.
(9) Remove the first hoist from the lifting ring of the cantilever sling, IAE1J12100.
(10) Lift the cantilever sling, IAE1J12100, with the second hoist and remove it from the sling adapter, IAE1J12104.
M. Install the curvic coupling bolts
(1) Install the IAE1J12180 PROTECTOR-HUB, in the stage 1 fan disk.
(2) Remove the three aligning pins from the stub shaft.
(3) Apply cleanV10-077 lubricant (engine oil)
(5) Tighten the bolts lightly in sequence, use the IAE1J12016 WRENCH-SPECIAL.
Subtask 72-31-00-420-057-A ** ON A/C NOT FOR ALL (1) Install the IAE1J12180 PROTECTOR-HUB, in the stage 1 fan disk.
(2) Remove the three aligning pins from the stub shaft.
(3) Apply clean
CAUTION:
DO NOT HIT THE STAGE 1 FAN DISK WITH THE SPECIAL WRENCH WHEN YOU INSTALL AND TIGHTEN THE CURVIC COUPLING BOLTS. THE TOOL CAN CAUSE DAMAGE TO THE DISK.
(4) Install the 20 curvic coupling bolts (1) at the N°1 thru N°4 and N°9 thru N°24 positions. (5) Tighten the bolts lightly in sequence, use the IAE1J12016 WRENCH-SPECIAL.
N. TORQUE the curvic coupling bolts.
(1) Install the locating ring and the adapter ring on to the front blade retaining ring.
(a) Install the locating ring (part of IAE1J12017 WRENCH-SPECIAL) on to the front blade retaining ring with the four screws.
(b) Tighten the screws.
(c) Install the adapter ring (part of the special wrench, IAE 1J12017) on to the locating ring with the four nuts. The N°1 position in the adapter ring must be at the top position.
(d) Tighten the nuts lightly.
(e) Adjust the position of the adapter ring so that the 24 holes in the ring are aligned with the curvic coupling bolts.
(f) Tighten the nuts.
(2) Make sure that the spigot (part of the special wrench, IAE 1J12017) is attached to the arm with the four bolts (part of the special wrench, IAE 1J12017).
(Ref. AMM TASK 70-23-11-911-013).
(a) Make sure that the socket (part of the special wrench, IAE 1J12017) is attached to the arm.
(b) Put the arm in position so that:
(d) Hold the fan blades and apply the specified torque value to the curvic coupling bolt.
(e) Do steps (a) thru (d) again to tighten each curvic coupling bolt.
(4) TORQUE all the 24 curvic coupling bolts to between 1133 and 885 lbf.in (12.80 and 10.00 m.daN ) (Ref. AMM TASK 70-23-11-911-013) in the same tightening sequence as in step (3).
(5) Make sure that the 24 bolts are at the required torque of 885 lbf.in (10.00 m.daN) and 1133 lbf.in (12.80 m.daN) (Ref. AMM TASK 70-23-11-911-013).
(a) TORQUE the bolt at the N°1 position.
(b) TORQUE the bolt adjacent to the first bolt when you move in a clockwise direction.
(c) Do step (b) again until all of the bolts are torqued.
(6) Remove the IAE1J12180 PROTECTOR-HUB, from the stage 1 disk hub (6).
(7) Remove all the parts of the special wrench, IAE 1J12017, from the engine.
(8) Remove the correlation mark:
(a) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist withV01-124 Isopropyl Alcohol, Technical grade
Subtask 72-31-00-420-062-A ** ON A/C NOT FOR ALL 5. Close-up(1) Install the locating ring and the adapter ring on to the front blade retaining ring.
(a) Install the locating ring (part of IAE1J12017 WRENCH-SPECIAL) on to the front blade retaining ring with the four screws.
(b) Tighten the screws.
(c) Install the adapter ring (part of the special wrench, IAE 1J12017) on to the locating ring with the four nuts. The N°1 position in the adapter ring must be at the top position.
(d) Tighten the nuts lightly.
(e) Adjust the position of the adapter ring so that the 24 holes in the ring are aligned with the curvic coupling bolts.
(f) Tighten the nuts.
(2) Make sure that the spigot (part of the special wrench, IAE 1J12017) is attached to the arm with the four bolts (part of the special wrench, IAE 1J12017).
CAUTION:
1. WHEN YOU TORQUE, IT IS IMPORTANT THAT THE TORQUE VALUE IS ON THE INCREASE. A NEW BOLT MUST BE INSTALLED IF THE TORQUE VALUE IS CONSTANT OR DECREASES.
2. THE BOLTS MUST NOT BE POWER WRENCHED.
(3) TORQUE the 24 curvic coupling bolts to between 567 and 443 lbf.in (6.41 and 5.01 m.daN ) (Ref. AMM TASK 70-23-11-911-013). (a) Make sure that the socket (part of the special wrench, IAE 1J12017) is attached to the arm.
(b) Put the arm in position so that:
- the spigot is engaged with the hole in the adapter ring
- the socket is installed on the curvic coupling bolt.
(d) Hold the fan blades and apply the specified torque value to the curvic coupling bolt.
(e) Do steps (a) thru (d) again to tighten each curvic coupling bolt.
(4) TORQUE all the 24 curvic coupling bolts to between 1133 and 885 lbf.in (12.80 and 10.00 m.daN )
(Ref. AMM TASK 70-23-11-911-013) in the same tightening sequence as in step (3). (5) Make sure that the 24 bolts are at the required torque of 885 lbf.in (10.00 m.daN) and 1133 lbf.in (12.80 m.daN) (Ref. AMM TASK 70-23-11-911-013).
(a) TORQUE the bolt at the N°1 position.
(b) TORQUE the bolt adjacent to the first bolt when you move in a clockwise direction.
(c) Do step (b) again until all of the bolts are torqued.
(6) Remove the IAE1J12180 PROTECTOR-HUB, from the stage 1 disk hub (6).
(7) Remove all the parts of the special wrench, IAE 1J12017, from the engine.
(8) Remove the correlation mark:
(a) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with
Subtask 72-31-00-410-063-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010)
(3) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(4) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(5) Install the air intake cowl (Ref. AMM TASK 71-11-11-400-010).
(6) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010)
(7) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(8) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(9) Remove the access platform(s).
(10) Remove the WARNING NOTICE(S).
Subtask 72-31-00-720-051-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010)
(3) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(4) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(5) Install the air intake cowl (Ref. AMM TASK 71-11-11-400-010).
(6) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010)
(7) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(8) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(9) Remove the access platform(s).
(10) Remove the WARNING NOTICE(S).