TASK 72-32-20-040-001 No. 3 Bearing, Seal, HPC Shaft, And Gearshaft Assembly - Disassemble, Disassembly-001

DMC:V2500-A0-72-32-2000-00A-530A-B|Issue No:001.00|Issue Date:2013-11-01

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 72-32-20-040-001 No. 3 Bearing, Seal, HPC Shaft, And Gearshaft 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. Let the parts soak before removal. For the approved oils and procedures, refer to the SPM TASK 70-64-00-640-501.

Discard all packing and cupwasher removed in this procedure.

Refer to TASK 72-32-20-440-001 for a sectional view of a No. 3 bearing, rotor center and support assembly.

Do not disassemble the HP compressor front shaft and seal assembly in this TASK. For the procedure to disassemble the HP compressor front shaft and seal assembly, refer to TASK 72-32-23-040-001 (DISASSEMBLY, CONFIG-001, CONFIG-002)

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
Torque multiplierLOCALSWEENEY 8200

or equivalent

IAE 1F10026 Hydraulic hand pump0AM53IAE 1F100261
IAE 1J12188 Puller bolt0AM53IAE 1J121881
IAE 1J12339 Spanner wrench0AM53IAE 1J123391
IAE 1J12367 Tab bender0AM53IAE 1J123671
IAE 1J12374 Oil flow test stand0AM53IAE 1J123741
IAE 1J12375 Oil flow check box0AM53IAE 1J123751
IAE 1J12376 Oil feed adapter0AM53IAE 1J123761
IAE 1J12378 Ratchet wrench0AM53IAE 1J123781
IAE 1J12387 Work stand0AM53IAE 1J123871
IAE 1J12420 Hydraulic puller0AM53IAE 1J124201
IAE 1J12421 Base holder0AM53IAE 1J124211
IAE 1J12478 Hydraulic pusher/puller0AM53IAE 1J124781
IAE 1J12495 Base plate0AM53IAE 1J124951
IAE 1J12503 Hydraulic pusher0AM53IAE 1J125031
IAE 1J12534 Hydraulic pusher0AM53IAE 1J125341
IAE 1P16023 Build fixture0AM53IAE 1P160231
IAE 1P17043 Knocker puller0AM53IAE 1P170431
IAE 1P17006 Removal fixture0AM53IAE 1P170061

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-124 ISOPROPYL ALCOHOLLOCALCoMat 01-124

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-20-040-051 Remove the No. 3 Bearing, Drive Gear and Support Assembly from the No. 3 Bearing Rotor Center

    1. Refer to Figure and Figure.

    2. Move IAE 1J12339 Spanner wrench 1 off and IAE 1J12387 Work stand 1 off to the work area.

    3. Safety the base (part of the spanner wrench) to the work stand and safety the adapter (part of the spanner wrench) to the base.

    4. Clean both sets of curvic teeth on the No. 3 bearing, rotor center and support assembly and the adapter (part of the spanner wrench) with CoMat 01-124 ISOPROPYL ALCOHOL.

    5. Install the No. 3 bearing, rotor center and support assembly to the adapter with the 20 dummy bolts and the plate nuts (part of the spanner wrench). Tighten the 20 bolts.

    6. Unbend the dimples on the cupwasher with the screwdriver.

      7. Loosen the No. 3 bearing nut with the wrench in the subsequent steps.

      1. Install the guide (part of the spanner wrench) into the base.

      2. Align the spanner (part of the wrench) with the slots of the No. 3 bearing nut and install the wrench on the No.3 bearing nut.

      3. Lift and transfer the Torque multiplier with a hoist.

      4. Turn the torque multiplier shaft and align the teeth of the spline on the torque multiplier with the spline on the wrench.

      5. Install the torque multiplier on the wrench and clamp it with the holder, the stopper and the bolt (part of the spanner wrench).

      6. Install a ratchet wrench into the torque multiplier and loosen the No. 3 bearing nut.

      7. Remove the bolt, the stopper and the holder.

      8. Remove the torque multiplier with a hoist.

      9. Remove the spanner wrench and the guide.

    8. Remove the No. 3 bearing nut and the cupwasher. Discard the cupwasher.

      9. Remove the No. 3 bearing, drive gear, support and seal assembly from the HP compressor front shaft and seal assembly.

      1. Move IAE 1J12420 Hydraulic puller 1 off to the work area.

      2. Retract the hydraulic cylinder and decrease the outside diameter of the six lugs (part of the hydraulic puller).

      3. Install the hydraulic puller on to the HP compressor front shaft and seal assembly and then insert the lugs into the groove in the bevel gearshaft wheel.

      4. Install the ring (part of the hydraulic puller) into the grooves of the six lugs.

      5. Tighten the six swing bolt.

      6. Connect the hose (part of IAE 1F10026 Hydraulic hand pump 1 off) to the hydraulic cylinder and pressurize it.

      7. Remove the No. 3 bearing, drive gear, support and seal assembly from the HP compressor front shaft and seal assembly.

      8. Remove the hose and hand pump.

      9. Remove the hydraulic puller from the bevel gearshaft.

    10. Remove the adjusting washer - HPC from the HP compressor front shaft and seal assembly.

    11. Remove the dummy bolts and the plate nuts.

    12. Remove the protection cover from the HP compressor front shaft.

    13. Remove the HP compressor front shaft and seal assembly from the adapter.

    2. SUBTASK 72-32-20-040-052-A00 V2500-A1: Remove the No. 3 Bearing Seal Assembly and the No. 3 Bearing Seal Seat (Pre SBE 72-0132)

    1. Put a clean soft mat on the work bench and put the No. 3 bearing, drive gear, support and seal assembly on it with the rear end up.

      2. Remove the nine bolts and the No. 3 bearing seal assembly from the No. 3 bearing seal support.

      1. Remove the nine bolts which attach the No. 3 bearing seal assembly to the No. 3 bearing seal support.

      2. Remove the No. 3 bearing seal assembly from the No. 3 bearing seal support with the three puller bolts (part of IAE 1J12188 Puller bolt 1 off).

      3. Remove the packing from the No. 3 bearing seal assembly and discard it.

      4. Put the No. 3 bearing seal assembly in to a container.

    3. Remove the No. 3 bearing seal seat from the bevel gearshaft wheel.

    3. SUBTASK 72-32-20-040-052-B00 V2500-A1: Remove the No. 3 Bearing Seal Assembly and the No. 3 Bearing Seal Seat (SBE 72-1032)

      SBE 72-0132: Removal of the stage 6 buffer air system.

    1. Put a clean soft mat on the work bench and put the No. 3 bearing, drive gear, support and seal assembly on it with the rear end up.

    2. Remove the nine bolts which attach the No. 3 bearing seal assembly to the No. 3 bearing seal support.

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

      1. Install IAE 1P17043 Knocker puller 1 off on the No. 3 bearing seal assembly.

      2. Pull out the No. 3 bearing seal assembly.

      3. Remove the knocker puller from the No. 3 bearing seal assembly.

      4. Remove the packing from the No. 3 bearing seal assembly and discard it.

      5. Put the No. 3 bearing seal assembly into a container.

    4. Remove the No. 3 bearing seal seat from the bevel gearshaft wheel.

    4. SUBTASK 72-32-20-040-052-C00 V2500-A5: Remove the No. 3 Bearing Seal Assembly and the No. 3 Bearing Seal Seat

    1. Put a clean soft mat on the work bench and put the No. 3 bearing, drive gear, support and seal assembly on it with the rear end up.

    2. Remove the nine bolts which attach the No. 3 bearing seal assembly to the No. 3 bearing seal support.

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

      1. Install IAE 1P17043 Knocker puller 1 off on the No. 3 bearing seal assembly.

      2. Pull out the No. 3 bearing seal assembly.

      3. Remove the knocker puller from the No. 3 seal assembly.

      4. Remove the packing from the No. 3 bearing seal assembly and discard it.

      5. Put the No. 3 bearing seal assembly into a container.

    4. Remove the No. 3 bearing seal seat from the bevel gearshaft wheel.

    5. SUBTASK 72-32-20-040-053-A00 V2500-A1: Remove the No. 3 Bearing Inner Race and Adjusting Washer - PTO from the Bevel Gearshaft Wheel

    1. Refer to Figure.

    2. Move IAE 1J12503 Hydraulic pusher 1 off to the work area. Install the 18 push pins into the 18 holes in the holder (part of the hydraulic pusher).

    3. Align the 18 holes in the bevel gearshaft wheel with the 18 push pins and then install the bevel gearshaft wheel on the holder.

    4. Attach the pusher (part of the hydraulic pusher) to the holder.

    5. Connect the hose (part of IAE 1F10026 Hydraulic hand pump 1 off) to the cylinder (part of the hydraulic pusher).

    6. Pressurize the cylinder to remove the gearshaft wheel from the No. 3 bearing and the adjusting washer - PTO.

    7. Disconnect the hose.

      NOTE

      Hold the inner race and ball together by hands when you lift the No. 3 bearing and seal support assembly. Because the inner race and ball can release from the outer race.

    8. Remove the No. 3 bearing and support assembly along the pusher and put it on the work bench.

    9. Remove the pusher and the adjusting washer - PTO.

    10. Remove the bevel gearshaft wheel from the holder.

    6. SUBTASK 72-32-20-040-053-B00 V2500-A5: Remove the No. 3 Bearing Inner Race and Adjusting Washer - PTO from the Bevel Gearshaft Wheel

    1. Refer to Figure.

    2. Move IAE 1J12534 Hydraulic pusher 1 off to the work area. Install the 18 push pins (part of the hydraulic pusher) in the 18 holes in the holder (part of the hydraulic pusher).

    3. Align the 18 holes in the bevel gearshaft wheel with the 18 push pins and then install the bevel gearshaft wheel on the holder.

    4. Attach the pusher (part of the hydraulic pusher) to the holder.

    5. Connect the hose (part of IAE 1F10026 Hydraulic hand pump 1 off) to the cylinder (part of the hydraulic pusher).

    6. Pressurize the cylinder to push the bevel gearshaft wheel from the No. 3 bearing and the adjusting washer.

    7. Disconnect the hose.

      NOTE

      Hold the inner race and ball together by hands when you lift the No. 3 bearing and seal support assembly. The inner race and ball can release from the outer race.

    8. Remove the No. 3 bearing and support assembly along the pusher and put it on the work bench.

    9. Remove the pusher and the adjusting washer - PTO.

    10. Remove the bevel gearshaft wheel from the holder.

    7. SUBTASK 72-32-20-710-053 Examine the Oil Flow in the No. 3 Bearing Outer Race and Seal Support Assembly

    1. Refer to Figure.

    3. Install the seal ring to IAE 1J12376 Oil feed adapter 1 off. The seal ring is part of the oil feed adapter (IAE 1J12376 Oil feed adapter).

    4. Attach oil feed adapter to oil feed port in front face of seal support outer flange.

    5. Attach oil feed adapter to seal support assembly with two bolts and nuts of oil feed adapter.

    6. Put No. 3 bearing outer race and seal support assembly into oil flow check box.

    7. Connect oil feed hose (part of oil flow test stand) to oil feed adapter.

      8. Examine oil flow of No. 3 bearing outer race and seal support assembly. Fully close stop valve and fully open the relief valve of the test stand.

        1. Turn on the switch of the oil flow test stand and increase pressure and temperature to the values that follow:

        1. Pressure: between 58.0 and 62.0 psig (400 and 427 kPa).

        2. Temperature: between 150 and 160 deg F (65 and 71 deg C).

      2. Measure oil flow rate. Make sure that it is between 0.100 and 0.486 gal/min. (0.38 and 1.84 l/min). If the oil flow rate is not in this range, reject the assembly and do another inspection to find the cause.

    9. Drain oil and disconnect oil feed hose from the oil feed adapter.

    10. Remove oil feed adapter and bolts from seal support.

    11. Remove No. 3 bearing outer race and seal support from oil flow check box.

    12. Make a record of all findings.

    8. SUBTASK 72-32-20-040-054 Remove the No. 3 Bearing Outer Race from the No. 3 Bearing Housing and Seal Support Assembly

    1. Refer to Figure.

    2. Move the IAE 1J12478 Hydraulic pusher/puller 1 off and IAE 1J12495 Base plate 1 off to the work area.

    3. Remove the 18 nuts which attach the No. 3 bearing outer race to the bearing No. 3 housing with IAE 1J12378 Ratchet wrench 1 off.

    4. Install the No. 3 bearing outer race seal support assembly in to the base plate.

    5. Put the hydraulic pusher/puller on the No. 3 bearing outer race rear face and attach it with the washer and the nut (part of the base plate).

    6. Connect the hose (part of IAE 1F10026 Hydraulic hand pump 1 off) to the hydraulic pusher/puller and pressurize to push the No. 3 bearing outer race from the bearing housing.

    7. Disconnect the hose and remove the nut, washer and the hydraulic pusher/puller.

    8. Remove the No. 3 bearing housing and seal support assembly and the No. 3 bearing outer race from the base plate.

    9. SUBTASK 72-32-20-040-055-A00 V2500-A1: Remove the No. 3 Bearing Housing (72-32-21,01-020) from the No. 3 Bearing Seal Support

    1. Refer to Figure.

    2. Install the No. 3 bearing damper assembly group to the IAE 1P16023 Build fixture 1 off.

    3. Install the tool bolts which attach the assembly group to the build fixture.

    4. Remove the nuts ENGINE-NO.3 BEARING SEAL SUPPORT (72-32-22, 01-100) from the shoulder studs.

    5. Put the build fixture plate assembly on the shoulder studs.

    6. Install the assembly in an arbor press.

    7. Operate the press to remove the shouldered studs and the No. 3 bearing housing from the No. 3 bearing seal support assembly.

    8. Remove the No. 3 bearing seal support assembly from the build fixture.

    10. SUBTASK 72-32-20-040-055-B00 V2500-A5: Remove the No. 3 Bearing Housing (72-32-21,01-020) from the No. 3 Bearing Seal Support

    1. Refer to Figure.

    2. Remove the nuts ENGINE-NO.3 BEARING SEAL SUPPORT (72-32-22, 01-060) from the shoulder studs.

    3. Loosen the bolts that hold the jaws on the fixture.

    4. Retract the jaws on the fixture.

    5. Install the No. 3 bearing damper assembly in the IAE 1P17006 Removal fixture 1 off so that the shoulder studs are between the fixture jaws.

    6. Extend the jaws until they touch the No. 3 bearing seal support assembly.

    7. Tighten the bolts to hold the jaws in position.

    8. Install the plate so that the shoulder studs align with the holes in the plate.

    9. Install the plunger on the removal fixture.

    10. Connect a suitable hydraulic pump to the coupler.

    11. Operate the pump until the No. 3 bearing housing and shoulder studs are disconnected from the No. 3 bearing seal support assembly.

    12. Remove the plunger and the plate from the assembly.

    13. Remove the No. 3 bearing seal support assembly.

    14. Remove the bearing housing and the shoulder studs from the fixture.

    11. SUBTASK 72-32-20-040-056-A00 V2500-A1: Remove the Seal Rings and the Shoulder Studs from the No. 3 Bearing Housing

      CAUTION

      THE STUDS ARE THREADED INTO THE NO. 3 BEARING HOUSING. BE CAREFUL WHEN YOU UNTORQUE THE STUDS BECAUSE YOU CAN BEND OR TWIST THE STUDS IN THE SMALL SHANK AREA.

    1. Remove the two seal rings from the grooves in the OD of the No. 3 bearing housing.

    2. Install the No. 3 bearing housing into the ring assembly of the build fixture.

    3. Release and remove the shoulder studs from the No. 3 bearing housing.

    12. SUBTASK 72-32-20-040-056-B00 V2500-A5: Remove the Seal Rings and the Shoulder Studs from the No. 3 Bearing Housing

      CAUTION

      THE STUDS ARE PRESSED INTO THE NO. 3 BEARING HOUSING. DO NOT TRY TO UNSCREW THE STUDS TO REMOVE THEM.

    1. Refer to Figure.

    2. Remove the two seal rings from the grooves on the OD of the No. 3 bearing housing.

    3. Make sure that the jaws of the removal fixture are extended.

    4. Install the ring detail on the removal fixture.

      5. Install the No. 3 bearing housing and the shoulder studs in the IAE 1P17006 Removal fixture 1 off.

      1. Make sure that the shoulder studs fit between the jaws and the longer parts of the studs are pointing down.

      2. Make sure that the No. 3 bearing housing touches the top surface of the jaws.

      3. The shoulder studs will touch the riser.

    6. Install the plunger to the removal fixture.

    7. Connect a suitable hydraulic pump to the coupler.

    8. Operate the pump until the No. 3 bearing housing shoulder studs are disconnected from the No. 3 bearing housing.

    9. Remove the plate and plunger from the assembly.

    10. Remove the No. 3 bearing housing from the fixture.

    11. Remove the shoulder studs from the fixture.

    13. Figure: Remove the No. 3 bearing nut

    Remove the No. 3 bearing nut

    Figure: Remove the No. 3 bearing, wheel gear and support assembly from the No. 3 bearing rotor center

    Remove the No. 3 bearing, wheel gear and support assembly from the No. 3 bearing rotor center

    Figure: Remove the No. 3 bearing and the PTO adjusting washer from the bevel gearshaft wheel

    Remove the No. 3 bearing and the PTO adjusting washer from the bevel gearshaft wheel

    Figure: Examine the oil flow in the No. 3 bearing outer race and seal support assembly

    Examine the oil flow in the No. 3 bearing outer race and seal support assembly

    Figure: Remove the No. 3 bearing outer race

    Remove the No. 3 bearing outer race

    Figure: Remove the No. 3 bearing seal support from the No. 3 bearing housing

    Remove the No. 3 bearing seal support from the No. 3 bearing housing

    Figure: Remove the bearing housing and shoulder studs from the No. 3 bearing seal support assembly

    Remove the bearing housing and shoulder studs from the No. 3 bearing seal support assembly

    Figure: Remove the shoulder studs from the No. 3 bearing housing

    Remove the shoulder studs from the No. 3 bearing housing

Requirements After Job Completion

Follow-On Conditions

NONE
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:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 01-124
Type:sp01
Supply Short Name:CoMat 01-124 ISOPROPYL ALCOHOL
Supply Name:CoMat 01-124 ISOPROPYL ALCOHOL
Specification Groups:
Doc NumberType
OMAT:1/40GPR TECHNICAL GRADE
PMC 9094GPR TECHNICAL GRADE
JCR-011GPR TECHNICAL GRADE
Suppliers:
ManufacturerRemarks
LOCAL
U1185
24853
K6835
Manufacturer Code:0AM53
Tool Number:IAE 1F10026
Tool Name:IAE 1F10026 Hydraulic hand pump
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 1J12367
Tool Name:IAE 1J12367 Tab bender
Manufacturer Code:0AM53
Tool Number:IAE 1J12374
Tool Name:IAE 1J12374 Oil flow test stand
Manufacturer Code:0AM53
Tool Number:IAE 1J12375
Tool Name:IAE 1J12375 Oil flow check box
Manufacturer Code:0AM53
Tool Number:IAE 1J12376
Tool Name:IAE 1J12376 Oil feed adapter
Manufacturer Code:0AM53
Tool Number:IAE 1J12378
Tool Name:IAE 1J12378 Ratchet wrench
Manufacturer Code:0AM53
Tool Number:IAE 1J12387
Tool Name:IAE 1J12387 Work stand
Manufacturer Code:0AM53
Tool Number:IAE 1J12420
Tool Name:IAE 1J12420 Hydraulic puller
Manufacturer Code:0AM53
Tool Number:IAE 1J12421
Tool Name:IAE 1J12421 Base holder
Manufacturer Code:0AM53
Tool Number:IAE 1J12478
Tool Name:IAE 1J12478 Hydraulic pusher/puller
Manufacturer Code:0AM53
Tool Number:IAE 1J12495
Tool Name:IAE 1J12495 Base plate
Manufacturer Code:0AM53
Tool Number:IAE 1J12503
Tool Name:IAE 1J12503 Hydraulic pusher
Manufacturer Code:0AM53
Tool Number:IAE 1J12534
Tool Name:IAE 1J12534 Hydraulic pusher
Manufacturer Code:0AM53
Tool Number:IAE 1P16023
Tool Name:IAE 1P16023 Build fixture
Manufacturer Code:0AM53
Tool Number:IAE 1P17006
Tool Name:IAE 1P17006 Removal fixture
Manufacturer Code:0AM53
Tool Number:IAE 1P17043
Tool Name:IAE 1P17043 Knocker puller
Manufacturer Code:LOCAL
Tool Number:SWEENEY 8200
Tool Name:Torque multiplier