TASK 72-32-10-040-001 No. 3 Bearing, Internal Gearbox, And Support Assembly - Disassemble, Disassembly-001

DMC:V2500-A0-72-32-1000-00A-530A-B|Issue No:002.00|Issue Date:2020-08-01

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 72-32-10-040-001 No. 3 Bearing, Internal Gearbox, And Support Assembly - Disassemble, 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 penetrating oil before the removal of threaded parts and parts with an interference fit. Let the parts soak before removal. For the approved penetrating oils and procedures, refer to the SPM TASK 70-64-00-640-501

Discard all rubber seal rings and cupwashers removed in this procedure.

Refer to TASK 72-32-10-440-001 (ASSEMBLY) for a sectional view of the No. 3 bearing, internal gearbox and support assembly.

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

NameManufacturerPart Number / IdentificationQuantityRemark
IAE 1J12342 Impact hammer0AM53IAE 1J123421
IAE 1J12344 Hooking puller0AM53IAE 1J123441
IAE 1J12345 Base plate0AM53IAE 1J123451
IAE 1J12346 Spanner wrench0AM53IAE 1J123461
IAE 1J12348 Hooking puller0AM53IAE 1J123481
IAE 1J12349 Hooking puller0AM53IAE 1J123491
IAE 1J12352 Hooking puller0AM53IAE 1J123521
IAE 1J12362 Work stand0AM53IAE 1J123621
IAE 1J12366 Spanner wrench0AM53IAE 1J123661
IAE 1J12350 Removal pusher0AM53IAE 1J123501
IAE 1J12422 Gearshaft holder0AM53IAE 1J124221
IAE 1J12463 Hooking puller0AM53IAE 1J124631
IAE 1J12188 Puller bolt0AM53IAE 1J121881
IAE 1J12447 PTO housing holder0AM53IAE 1J124471
IAE 1J12448 Restraint holder0AM53IAE 1J124481
IAE 1J12367 Tab bender0AM53IAE 1J123671
IAE 1J12381 Tab bender0AM53IAE 1J123811
IAE 1J12353 TBD0AM53IAE 1J123531
IAE 1J12355 Spanner wrench0AM53IAE 1J123551
IAE 1J12339 Spanner wrench0AM53IAE 1J123391

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 10-077 APPROVED ENGINE OILSX333XCoMat 10-077

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-10-040-051 Disassemble the No. 3 Bearing, Internal Gearbox and Support Assembly in to the Three Subassemblies

    1. Refer to Figure.

      2. Install the No. 3 bearing, internal gearbox and support assembly to IAE 1J12362 Work stand 1 off.

        NOTE

        Align the TOP mark of the No. 3 bearing seal support of the assembly with the TOP mark of the work stand.

      1. Turn the assembly with the rear end down and put in the hole in the work stand.

      2. Safety the assembly to the work stand with the 20 bolts of the work stand. Tighten the bolts.

    3. Turn the work stand horizontal with the TOP mark at the bottom.

      4. Remove the internal gearbox driven gear assembly from the No. 2 bearing support.

      1. Remove the eight bolts which safety the internal gearbox driven gear assembly to the No. 2 bearing support.

      2. Lubricate the threads of the three puller bolts (part of IAE 1J12188 Puller bolt 1 off) with CoMat 10-077 APPROVED ENGINE OILS.

      3. Remove the internal gearbox driven gear assembly from the No. 2 bearing support with the puller bolts.

      5. Remove the No. 2 bearing support assembly from the No. 3 bearing rotor center and support assembly.

      1. Turn the work stand with the No. 3 bearing, rotor center and support assembly rear end down.

      2. Remove the 20 bolts which attach the assembly to the work stand.

      3. Lubricate the threads of the four puller bolts with CoMat 10-077 APPROVED ENGINE OILS.

      4. Remove the No. 2 bearing support assembly from the No. 3 bearing, rotor center and support assembly with the puller bolts.

    2. SUBTASK 72-32-10-040-052-A00 Remove the Hydraulic Seal Assembly from the No. 3 Bearing and Support Assembly (Pre SBE 72-0462)

      1. Release the lock plate from the slots of the HPC front shaft. Refer to Figure.

      1. Install the holder (part of IAE 1J12367 Tab bender 1 off) to IAE 1J12345 Base plate 1 off with the four bolts.

      2. Put the No. 3 bearing and support assembly and the hydraulic seal with the front end down on the holder of the tab bender.

      3. Put the cover (part of the tab bender) on the HPC front shaft.

      4. Release the lock plate with the long tab bender (part of the tab bender).

      5. Remove the cover.

      6. Remove the No. 3 bearing and support assembly and the hydraulic seal assembly from the holder.

      2. Turn the No. 3 bearing and support assembly and the hydraulic seal assembly with the rear end down and put on the IAE 1J12345 Base plate. Refer to Figure.

      1. Remove the holder from the base plate.

      2. Install the base (part of IAE 1J12339 Spanner wrench 1 off) to the base plate with six bolts.

      3. Install the adapter (part of the spanner wrench) to the base with the eight bolts.

      4. Turn the No. 3 bearing and support assembly and the hydraulic seal assembly with the rear end down.

      5. Install the No. 3 bearing and support assembly and the hydraulic seal assembly to the adapter with the rear end down with the 20 dummy bolts and the two plate nuts.

      3. Release the lock plate from the slots of the hydraulic seal assembly. Refer to Figure.

      1. Attach the spacer (part of the IAE 1J12367 Tab bender) to the hydraulic seal assembly.

      2. Release the lock plate with the short tab bender (part of the tab bender).

      3. Remove the spacer.

      4. Remove the hydraulic seal assembly and the lock plate from the No. 3 bearing and support assembly. Refer to Figure.

        1. Attach IAE 1J12353 TBD 1 off to the hydraulic seal assembly.

        1. Put the wrench (part of the spanner wrench) in to the hydraulic seal assembly.

        2. Engage the eight jaws (part of the spanner wrench) with the eight slots of the hydraulic seal assembly.

        3. Safety the jaws to the wrench with the eight bolts (part of the spanner wrench).

        2. Remove the hydraulic seal assembly from the HPC front shaft.

        1. Attach the holder (part of the spanner wrench) to the hydraulic seal.

        2. Turn the wrench counter-clockwise to remove the hydraulic seal assembly from the HPC front shaft.

        3. Remove the wrench and the holder from the hydraulic seal assembly.

      3. Remove the lock plate from the HPC front shaft. Discard the lock plate.

    3. SUBTASK 72-32-10-040-052-B00 Remove the Hydraulic Seal Assembly from the No. 3 Bearing and Support Assembly (SBE 72-0462)

    1. SBE 72-0462: Introduction of a revised hydraulic seal and a revised No. 2 bearing oil jet

      2. Release the lock plate from the slots of the HPC front shaft. Refer to Figure.

      1. Install the holder (part of IAE 1J12381 Tab bender 1 off) to IAE 1J12345 Base plate 1 off with the four bolts.

      2. Put the No. 3 bearing and support assembly and the hydraulic seal with the front end down on the holder of the tab bender.

      3. Tighten the four screws to push the clamps to the hydraulic seal assembly and hold the hydraulic seal assembly.

      4. Put the cover (part of the tab bender) on the HPC front shaft.

      5. Release the lock plate with the long tab bender (part of the tab bender).

      6. Remove the cover.

      7. Remove the No. 3 bearing and support assembly and the hydraulic seal assembly from the holder.

      3. Turn the No. 3 bearing and support assembly and the hydraulic seal assembly with the rear end down and put on the IAE 1J12345 Base plate. Refer to Figure.

      1. Remove the holder from the base plate.

      2. Install the base (part of IAE 1J12339 Spanner wrench 1 off) to the base plate with six bolts.

      3. Install the adapter (part of the spanner wrench) to the base with the eight bolts.

      4. Turn the No. 3 bearing and support assembly and the hydraulic seal assembly with the rear end down.

      5. Install the No. 3 bearing and support assembly and the hydraulic seal assembly to the adapter with the rear end down with the 20 dummy bolts and the two plate nuts.

      4. Release the lock plate from the slots of the hydraulic seal assembly. Refer to Figure.

      1. Attach the spacer (part of the IAE 1J12381 Tab bender) to the hydraulic seal assembly.

      2. Release the lock plate with the short tab bender (part of the tab bender).

      3. Remove the spacer.

      5. Remove the hydraulic seal assembly and the lock plate from the No. 3 bearing and support assembly. Refer to Figure.

        1. Attach IAE 1J12355 Spanner wrench 1 off to the hydraulic seal assembly.

        1. Put the wrench (part of the spanner wrench) in to the hydraulic seal assembly.

        2. Engage the eight jaws (part of the spanner wrench) with the eight slots of the hydraulic seal assembly.

        3. Safety the jaws to the wrench with the eight bolts (part of the spanner wrench).

        2. Remove the hydraulic seal assembly from the HPC front shaft.

        1. Attach the holder (part of the spanner wrench) to the hydraulic seal.

        2. Turn the wrench counter-clockwise to remove the hydraulic seal assembly from the HPC front shaft.

        3. Remove the wrench and the holder from the hydraulic seal assembly.

      3. Remove the lock plate from the HPC front shaft. Discard the lock plate.

    4. SUBTASK 72-32-10-040-053 Disassemble the Hydraulic Seal Assembly

    1. Refer to Figure.

    2. Put the hydraulic seal on the holder part of IAE 1J12463 Hooking puller 1 off with the front end down.

    3. Safety the differential seal with the two retainers (part of the hooking puller) and the six bolts and washers.

    4. Put the three keys (part of the hooking puller) between the hydraulic ring and the differential seal.

    5. Safety the keys to the guide (part of the hooking puller) with the three bolts and washers.

    6. Turn the jacking bolts of the hooking puller clockwise and disengage the hydraulic ring from the differential seal of the hydraulic seal assembly.

    7. Remove the seal ring from the groove in the hydraulic seal assembly.

    8. Remove the hydraulic seal assembly from the hooking puller.

    5. SUBTASK 72-32-10-040-054 Disassemble the No. 3 Bearing, Rotor Center and Support Assembly

    1. Disassemble the No. 3 bearing, rotor center and support assembly. Refer to TASK 72-32-20-040-001 (DISASSEMBLY).

    6. SUBTASK 72-32-10-040-055 Disassemble the No. 2 Bearing Support Assembly

    1. Refer to Figure, Figure, Figure and Figure.

      2. Remove the four oil jets from the No. 2 bearing support.

      1. Remove the five bolts which attach the oil jets to the No. 2 bearing support.

      2. Remove the oil jets from the mounting holes in the No. 2 bearing support with IAE 1J12342 Impact hammer 1 off.

      3. Remove the seal rings and the oil jet strainers from the oil jets.

      1. Remove the seal ring adjacent to the oil jet end from each oil jet.

      2. Remove the oil jet strainer from each oil jet.

      3. Remove the remaining seal ring from each oil jet.

      4. Discard all the seal rings removed from the oil jets.

      4. Remove the fan speed probes and the trim balance probe from the mounting brackets A and B.

      1. Remove the eight nuts which safety the probes to the mounting brackets.

      2. Remove the probes from the pins of the mounting brackets.

      3. Remove the shims from the pins.

      4. Attach the tags identified with the locations to the adjusting shims.

      5. Remove the mounting brackets A and B from the No. 2 bearing support.

      1. Remove the 11 bolts and the nine nuts which safety the mounting brackets and the No. 2 bearing retainer to the No. 2 bearing support.

      2. Remove the mounting brackets.

    6. Remove the No. 2 bearing retainer and the No. 2 roller bearing outer from the No. 2 bearing support.

      7. Remove the outer roller bearing of the gearshaft from the No. 2 bearing support.

      1. Remove the retaining ring from the No. 2 bearing support.

      2. Attach the holder (part of IAE 1J12344 Hooking puller 1 off) to the No. 2 bearing support with the four screws.

      3. Turn the nut (part of the hooking puller) counter-clockwise to lower the three lugs (part of the hooking puller) until the lugs can catch the outer roller bearing.

      4. Push down and turn the guide pin clockwise into the hand screw until the hooks of the lugs catch the outer roller bearing.

      5. Turn the nut clockwise to pull out the roller bearing.

      6. Remove the hooking puller from the No. 2 bearing support.

    7. SUBTASK 72-32-10-040-056 Disassemble the Internal Gearbox Driven Gear Assembly

    1. Refer to Figure and Figure.

      2. Attach the internal gearbox assembly to IAE 1J12448 Restraint holder 1 off.

      1. Attach the restraint holder to IAE 1J12345 Base plate 1 off with the two short bolts.

      2. Put the internal gearbox driven gear assembly on the restraint holder.

      3. Safety the assembly to the restraint holder with the four clamps, bolts and spherical washers of the holder.

      3. Remove the retaining plate from the gearshaft bearing housing.

      1. Remove the four bolts which safety the retaining plate to the housing.

      2. Remove the retaining plate from the housing.

    4. Remove the gearshaft bearing housing from the rotor assembly of the internal gearbox driven gear assembly.

    8. SUBTASK 72-32-10-040-057 Disassemble the Rotor Assembly of the Internal Gearbox Driven Gear Assembly

    1. Refer to Figure.

      2. Remove the plain round nut and the cupwasher from the bevel gearshaft.

      1. Release the cupwasher with the tab bender.

      2. Attach the IAE 1J12346 Spanner wrench 1 off on the gear shaft.

      3. Install the adapter (part of the restraint holder) on to the holder with the two long bolts.

      4. turn the spanner wrench counter-clockwise to loosen the plain round nut.

      5. Remove the adapter and the spanner wrench.

      6. Remove the plain round nut and the cupwasher from the bevel gearshaft. Discard the cupwasher.

      3. Remove the inner roller bearing, the ball bearing and the flat adjusting washer from the bevel gearshaft with IAE 1J12349 Hooking puller 1 off.

      1. Remove the ring (part of the hooking puller) and open the lugs (part of the hooking puller).

      2. Put the pad (part of the hooking puller) on the end of the bevel gearshaft.

      3. Turn the hand screw (part of the hooking puller) counter-clockwise so that the hooks of the lugs can engage the flat adjucting washer.

      4. Attach the ring on to the lugs. Make sure the hooks of the lugs engage the flat adjusting washer.

      5. Turn the hand screw clockwise to pull out the inner roller bearing, the ball bearing and the flat adjusting washer from the bevel gearshaft.

      6. Remove the hooking puller from the bevel gear shaft.

    4. Remove the retaining plate from the bevel gearshaft.

    5. Remove the seal ring from the groove in the bevel gearshaft. Discard the seal ring.

      6. Remove the distributor from the bevel gearshaft with IAE 1J12350 Removal pusher 1 off.

      1. Attach the nut (part of the removal pusher) to the thread of the bevel gearshaft.

      2. Turn the hand screw (part of the removal pusher) clockwise until the pad (part of the removal pusher) touches the distributor.

      3. Turn the hand screw clockwise and push the distributor out of the bevel gearshaft.

      4. Remove the removal pusher from the bevel gearshaft.

      7. Attach the bevel gearshaft to IAE 1J12422 Gearshaft holder 1 off.

      1. Remove the bevel gearshaft from the restraint holder.

      2. Remove the restraint holder from the base plate.

      3. Attach the holder (part of the gearshaft holder) to the base plate.

      4. Install the bevel gearshaft onto the holder and attach with the short bolts.

      8. Remove the plain round nut and the cupwasher from the bevel gearshaft.

      1. Release the cupwasher with the tab bender.

      2. Install IAE 1J12366 Spanner wrench 1 off on to the gearshaft.

      3. Install the block and the adapter of the gearshaft holder with the two long bolts.

      4. Turn the spanner wrench counter-clockwise to loosen the plain round nut.

      5. Remove the block and the adapter.

      6. Remove the plain round nut and the cupwasher from the bevel gearshaft. Discard the cupwasher.

      9. Remove the inner roller bearing from the bevel gearshaft with IAE 1J12352 Hooking puller 1 off.

      1. Remove the ring (part of the hooking puller) which holds the lugs (part of the hooking puller). Loosen the three bolts (part of the hooking puller) and open the lugs fully.

      2. Put the pad (part of the hooking puller) on the end of the bevel gearshaft.

      3. Close the lugs. Attach the ring on to the lugs. Safety the lugs with three bolts.

      4. Turn the screw (part of the hooking puller) clockwise by hand until the hooks of the lugs can engage the lower surface of the inner roller bearing.

      5. Turn the screw clockwise by hand to pull out the inner roller bearing.

      6. Remove the hooking puller from the bevel gearshaft.

    10. Remove the bevel gearshaft from the base holder.

    11. Remove the base holder from the base plate.

    9. SUBTASK 72-32-10-010-051 Remove the Outer Roller Bearing from the Gearshaft Bearing Housing

    1. Refer to Figure.

    2. Install the holder (part of IAE 1J12447 PTO housing holder 1 off) on to the base plate and safety with the four bolts of the PTO housing holder. Tighten the bolts.

    3. Install the gearshaft bearing housing in to the hole in the holder.

      4. Remove the outer roller bearing from the gearshaft bearing housing with IAE 1J12348 Hooking puller 1 off.

      1. Pull up the guide pin and close the three lugs manually. Install the lugs in to the outer roller bearing, careful not to touch the raceway surface of the outer roller bearing.

      2. Engage the three hooks of the lugs in the slots of the gearshaft bearing housing. They must catch the lower side of the outer roller bearing.

      3. Put the guide pin down and turn it in the hand screw to hold the lugs.

      4. Put the holder on the gearshaft bearing housing and tighten with the nut.

      5. Turn the nut clockwise with a wrench. Then pull the outer roller bearing from the gearshaft bearing housing.

    5. Remove the gearshaft bearing housing from the holder.

    6. Remove the holder from the base plate.

    10. Figure: Disassemble the No. 3 bearing, internal garbox and support assembly in to the three subassemblies

    Disassemble the No. 3 bearing, internal garbox and support assembly in to the three subassemblies

    Figure: Pre SBE 72-0462: Release the lock plate from the slots of the HPC front shaft

    Pre SBE 72-0462: Release the lock plate from the slots of the HPC front shaft

    Figure: SBE 72-0462: Release the lock plate from the slots of the HPC front shaft

    SBE 72-0462: Release the lock plate from the slots of the HPC front shaft

    Figure: Release the lock plate from the slots of the hydraulic seal assembly

    Release the lock plate from the slots of the hydraulic seal assembly

    Figure: Remove the hydraulic seal assembly from the No. 3 bearing and support assembly

    Remove the hydraulic seal assembly from the No. 3 bearing and support assembly

    Figure: Disassembly the hydraulic seal assembly

    Disassembly the hydraulic seal assembly

    Figure: Remove the four oils jets, seal rings and strainers from the No. 2 bearing support

    Remove the four oils jets, seal rings and strainers from the No. 2 bearing support

    Figure: Remove the fan speed probes, the trim balance probe and the mounting brackets A and B

    Remove the fan speed probes, the trim balance probe and the mounting brackets A and B

    Figure: Remove the outer roller bearing from the No. 2 bearing support

    Remove the outer roller bearing from the No. 2 bearing support

    Figure: Remove the bearings and the distributor from the bevel gearshaft

    Sheet 1

    Legend
    Remove the bearings and the distributor from the bevel gearshaft

    Sheet 1

    Close

    Figure: Remove the bearings and the distributor from the bevel gearshaft

    Sheet 2

    Legend
    Remove the bearings and the distributor from the bevel gearshaft

    Sheet 2

    Close

    Figure: Remove the inner bearings and the distributor from the bevel gearshaft

    Sheet 3

    Legend
    Remove the inner bearings and the distributor from the bevel gearshaft

    Sheet 3

    Close

    Figure: Remove the bearings and the distributor from the bevel gearshaft

    Sheet 4

    Legend
    Remove the bearings and the distributor from the bevel gearshaft

    Sheet 4

    Close

    Figure: Remove the outer roller bearing from the gearshaft bearing housing

    Remove the outer roller bearing from the gearshaft bearing housing

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Remove tool IAE1J12342 from SUBTASK 72-32-10-040-055. Tool not necessary (CAS-70524-S6Q0W6)

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:X333X
Enterprise Name:REFER TO V2500 SB ENG-79-0108
Manufacturer Code:X333X
Supply Number:CoMat 10-077
Type:sp01
Supply Short Name:CoMat 10-077 APPROVED ENGINE OILS
Supply Name:CoMat 10-077 APPROVED ENGINE OILS
Specification Groups:
Doc NumberType
For V2500-A1/A5/D5 models - Refer to V2500 Service Bulletin ENG-79-0108
For V2500-E5 model - Refer to Service Bulletin E5-79-0001
Suppliers:
ManufacturerRemarks
X333X
Manufacturer Code:0AM53
Tool Number:IAE 1J12188
Tool Name:IAE 1J12188 Puller bolt
Manufacturer Code:0AM53
Tool Number:IAE 1J12339
Tool Name:IAE 1J12339 Spanner wrench
Manufacturer Code:0AM53
Tool Number:IAE 1J12342
Tool Name:IAE 1J12342 Impact hammer
Manufacturer Code:0AM53
Tool Number:IAE 1J12344
Tool Name:IAE 1J12344 Hooking puller
Manufacturer Code:0AM53
Tool Number:IAE 1J12345
Tool Name:IAE 1J12345 Base plate
Manufacturer Code:0AM53
Tool Number:IAE 1J12346
Tool Name:IAE 1J12346 Spanner wrench
Manufacturer Code:0AM53
Tool Number:IAE 1J12348
Tool Name:IAE 1J12348 Hooking puller
Manufacturer Code:0AM53
Tool Number:IAE 1J12349
Tool Name:IAE 1J12349 Hooking puller
Manufacturer Code:0AM53
Tool Number:IAE 1J12350
Tool Name:IAE 1J12350 Removal pusher
Manufacturer Code:0AM53
Tool Number:IAE 1J12352
Tool Name:IAE 1J12352 Hooking puller
Manufacturer Code:0AM53
Tool Number:IAE 1J12353
Tool Name:IAE 1J12353 TBD
Manufacturer Code:0AM53
Tool Number:IAE 1J12355
Tool Name:IAE 1J12355 Spanner wrench
Manufacturer Code:0AM53
Tool Number:IAE 1J12362
Tool Name:IAE 1J12362 Work stand
Manufacturer Code:0AM53
Tool Number:IAE 1J12366
Tool Name:IAE 1J12366 Spanner wrench
Manufacturer Code:0AM53
Tool Number:IAE 1J12367
Tool Name:IAE 1J12367 Tab bender
Manufacturer Code:0AM53
Tool Number:IAE 1J12381
Tool Name:IAE 1J12381 Tab bender
Manufacturer Code:0AM53
Tool Number:IAE 1J12422
Tool Name:IAE 1J12422 Gearshaft holder
Manufacturer Code:0AM53
Tool Number:IAE 1J12447
Tool Name:IAE 1J12447 PTO housing holder
Manufacturer Code:0AM53
Tool Number:IAE 1J12448
Tool Name:IAE 1J12448 Restraint holder
Manufacturer Code:0AM53
Tool Number:IAE 1J12463
Tool Name:IAE 1J12463 Hooking puller