TASK 72-50-10-430-011 LPT Case And Rotor Assembly - Balance The LPT Assembly, Assembly-011

DMC:V2500-A0-72-50-1000-11A-710A-B|Issue No:003.00|Issue Date:2020-02-01

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 72-50-10-430-011 LPT Case And Rotor Assembly - Balance The LPT Assembly, Assembly-011

General

Fig/item numbers 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 70-41-01-400-501 and SPM TASK 70-41-02-400-501.

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.

To identify, lubricate and install seal rings, refer to TASK 70-44-01-400-501.

After assembly apply CoMat 07-038 AIR DRYING ENAMEL to any damaged surface protection, joint flanges and attach parts. Use the correct color of the air drying enamel. Refer to TASK 70-63-02-400-501.

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.

Refer to TASK 72-50-00-990-501 (DESCRIPTION AND OPERATION-001) for a sectional view of the LP turbine module.

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
Horizontal Balancing MachineLOCALSchenck HL5U
Rack palletLOCALRack pallet
IAE 1F10026 Hydraulic hand pump0AM53IAE 1F100261
IAE 1F10052 Two cables sling0AM53IAE 1F100522
IAE 6F10027 Heater control unit0AM53IAE 6F100271
IAE 1J12283 Expanding heater0AM53IAE 1J122831
IAE 1M14000 Lifting fixture0AM53IAE 1M140001
IAE 1M14001 Support fixture0AM53IAE 1M140011
IAE 1M14009 Storage stand0AM53IAE 1M140091
IAE 1M14012 Hydraulic puller- pusher0AM53IAE 1M140121
IAE 1M14045 Installation stand0AM53IAE 1M140451
IAE 1M14047 Rear balancing flange0AM53IAE 1M140471
IAE 1M14048 Torque wrench adapter0AM53IAE 1M140481
IAE 1M14055 Special wrench0AM53IAE 1M140551
IAE 1M14057 Hydraulic basic fixture0AM53IAE 1M140571
IAE 1M14099 Front balancing fixture0AM53IAE 1M140991
IAE 1M14125 Guide pin0AM53IAE 1M141251

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-031 ACETONE (CH3)2COLOCALCoMat 01-031
CoMat 02-069 DISPOSABLE CLEANING TISSUES33591CoMat 02-069
CoMat 02-129 MARKERIAE28CoMat 02-129
CoMat 07-038 AIR DRYING ENAMELK3504CoMat 07-038
CoMat 10-077 APPROVED ENGINE OILSLOCALCoMat 10-077

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-10-430-180 Install the Front Balancing Fixture on to the Installation Stand

      CAUTION

      SAFETY THE IAE 1M14045 Installation stand 1 OFF WITH THE FLOOR LOCK.

    1. Refer to: Figure

    2. Use hoist equipment. Attach the IAE 1F10052 Two cables sling 1 off to the front balancing fixture.

    3. Lift the IAE 1M14099 Front balancing fixture 1 off with the two cables sling from the installation stand.

    4. Turn the front balancing fixture with the arbor shaft up.

    5. Install the front balancing fixture on to the installation stand.

    6. Attach the front balancing fixture with the eight bolts and washers to the installation stand. Tighten the bolts.

    7. Remove the two cables sling.

    8. Place the IAE 1M14009 Storage stand 1 off near to the installation stand.

    9. Lock the arbor shaft with the plastic knob, part of the front balancing fixture.

    2. SUBTASK 72-50-10-430-181 Increase the Temperature of the Arbor Flange with the Expanding Heater

    1. Install the IAE 1J12283 Expanding heater 1 off on to the arbor flange.

    2. Increase the temperature of the arbor flange with the expanding heater to get a maximum temperature of 248.0 deg F (120.0 deg C). Increase the temperature for 15 minutes. Use the IAE 6F10027 Heater control unit 1 off.

    3. SUBTASK 72-50-10-430-297 Install the Support Fixture into the Lifting Fixture

    1. Use hoist equipment.

    2. Engage the IAE 1M14000 Lifting fixture 1 off on to the IAE 1M14001 Support fixture 1 off. Turn back the three guide sleeves, part of the lifting fixture, until the support fixture touches the lifting fixture.

    3. Attach the assembled fixture with the three nuts on the guide sleeves.

    4. Turn the hooks of the six clamps to the inner. The hooks must point in the same direction as the rear dowel pins.

    4. SUBTASK 72-50-10-430-298 Install the Assembled Fixture on to the LP Turbine Case and Rotor

    1. Refer to: Figure

    2. Loosen the three nuts of the support fixture. Turn back the three guide sleeves of the lifting fixture. Safety at the three nuts.

    3. Use a hoist equipment and lift the assembled fixture with the chain shackles. Install the IAE 1M14125 Guide pin 1 off on to the assembled fixture.

    4. Install the assembled fixture to the LP turbine case and rotor. Monitor the TOP mark and the dowel pin on the rear flange of the LP turbine case. During installation, make sure that the end of the guide pin engages through a hole of the inner flange of the stage 6 disk.

    5. Attach the lifting fixture to the rear flange of the LP turbine case. Use the 19 hex head cap screws and plaster washers.

    6. Loosen the three nuts. Turn down the three guide sleeves until the support fixture touches the rear face of the stage 6 disk connecting flange.

    7. Turn the six clamps out and attach them with the knurled nuts. Make sure that all the hooks of the clamps engage the front flange of the stage 6 disk.

    8. CAUTION

      MAKE SURE THE SUPPORT FIXTURE IS CORRECTLY LOCKED ON THE LIFTING FIXTURE. IF THE FIXTURES ARE NOT CORRECTLY LOCKED, THE LP TURBINE CASE AND ROTOR PARTS CAN BE DAMAGED DURING HANDLING OF THE LP TURBINE ASSEMBLY.

      Tighten the three nuts of the support fixture.

    5. SUBTASK 72-50-10-430-182 Remove the LP Turbine Case and Rotor from the Storage Stand

    1. Release the four slotted heel clamp straps which safety the LP turbine case and rotor to the storage stand.

    2. Hoist the LP turbine and rotor from the storage stand with the lifting fixture.

    6. SUBTASK 72-50-10-430-183 Lift the LP Turbine Case and Rotor above the Front Balancing Fixture

    1. Lift the LP turbine case and rotor above the front balancing fixture.

    7. SUBTASK 72-50-10-430-184 Remove the Expanding Heater from the Arbor Flange

    1. Switch off the heater control.

    2. Remove the expanding heater from the arbor flange.

    8. SUBTASK 72-50-10-430-185 Install the LP Turbine Case and Rotor on to the Front Balancing Fixture

      CAUTION

      MAKE SURE THAT THE LP TURBINE INNER DIFFUSER SUPPORT FIXTURE ON THE FRONT BALANCING FIXTURE IS IN THE RETRACTED POSITION. THE KNURLED SCREW MUST BE TIGHTENED AS FAR AS POSSIBLE INTO THE SPECIAL NUT. WITHOUT THIS PROCEDURE, THE LP TURBINE DIFFUSER CAN BE DAMAGED DURING INSTALLATION ON THE FRONT BALANCING FIXTURE.

    1. Refer to: Figure

    2. Lower the LP turbine case and rotor carefully on to the front balancing fixture. Monitor the TOP mark. Make sure that the front end of the guide pin engages through a hole of the arbor flange.

    3. Loosen the six knurled nuts of the support fixture. Turn the six clamps to the inner so that the stage 6 disk is free. Tighten the knurled nuts.

    9. SUBTASK 72-50-10-430-186 Install the Hydraulic Basic Fixture on to the Front Balancing Fixture

    1. Refer to: Figure

    2. Turn the IAE 1M14012 Hydraulic puller- pusher 1 off in to the front balancing fixture.

    3. Install the flange, part of the IAE 1M14057 Hydraulic basic fixture 1 off. The word ASSEMBLY is up.

    4. Attach the flange with the six head cap screws to the support fixture.

    5. Install the hydraulic cylinder, part of the hydraulic basic fixture, on to the flange with the thread up.

    6. Install the knurled nut on to the hydraulic puller-pusher.

    7. Tighten the knurled nut on to the hydraulic puller-pusher.

    10. SUBTASK 72-50-10-430-187 Press the Stage 6 Disk on to the Arbor Flange of the Front Balancing Fixture

    1. Connect the IAE 1F10026 Hydraulic hand pump 1 off to the hydraulic basic fixture.

    2. Operate the hydraulic puller-pusher with the hydraulic pump to press the stage 6 disk on to the arbor flange.

    11. SUBTASK 72-50-10-430-188 Remove the Hydraulic Basic Fixture

    1. Refer to: Figure

    2. Disconnect the hydraulic pump from the hyraulic basic fixture.

    3. Loosen and remove the knurled nut from the hydraulic puller-pusher.

    4. Remove the hydraulic cylinder from the flange.

    5. Loosen and remove the six hex head cap screws which attach the flange to the support fixture. Remove the flange.

    6. Turn the hydraulic puller-pusher out of the front balancing fixture.

    12. SUBTASK 72-50-10-430-189 Remove the Assembled Fixture

    1. Loosen and remove the 19 screws which attach the lifting fixture to the turbine case rear flange.

    2. Remove the lifting fixture and the support fixture. Use hoist equipment.

    3. Remove the guide pin from the support fixture.

    4. Put the assembled fixture on a rack pallet.

    13. SUBTASK 72-50-10-430-190 Attach the LP Turbine Case Front Flange on to the Front Balancing Fixture

    1. Refer to: Figure

    2. Attach the LP turbine case front flange with the 25 hex head screws on to the front balancing fixture. Tighten the screws.

    14. SUBTASK 72-50-10-430-191 Attach the Stage 6 Disk on to the Arbor Flange of the Front Balancing Fixture

    1. Refer to: Figure

    2. Attach the stage 6 disk with the 10 washers and nuts on to the arbor flange of the front balancing fixture.

      NOTE

      The tightening torque value includes the self locking torque value.

    3. Torque the nuts across to between 716.9 to 849.7 lbfin (81.0 to 96.0 Nm).

    4. Use CoMat 02-129 MARKER. Make a mark to the arbor flange, part of the front balancing fixture, and the stage 6 disk flange to identify the assembly position.

    15. SUBTASK 72-50-10-430-192 Install the Rear Balancing Flange on to the LP Turbine Case Rear Flange

    1. Refer to: Figure

    2. Remove the hand knob and the washer which secure the IAE 1M14047 Rear balancing flange 1 off to the installation stand.

    3. Use hoist equipment and the IAE 1F10052 Two cables sling 1 off. Remove the rear balancing flange from the installation stand.

    4. Lift the rear balancing flange above the LP turbine case.

    5. Lower the rear balancing flange carefully on to the front balancing fixture and the LP turbine case rear flange. Monitor the TOP mark.

    6. Attach the rear balancing flange with the 19 hex head screws on to the LP turbine case rear flange. Tighten the screws.

    16. SUBTASK 72-50-10-430-299 Adjust the Dimensions of the LP Turbine Case and Rotor

    1. Refer to: Figure

    2. Adjust the required dimensions on the balancing measuring unit, refer to Figure.

      A = 12.20in. (310.0 mm).

      B = 10.43in. (265.0 mm).

      C = 6.89in. (175.0 mm).

      R1 = 9.53in. (242.0 mm).

      R2 = 9.06in. (230.0 mm).

    17. SUBTASK 72-50-10-430-193 Prepare the Horizontal Balancing Machine for Balancing

    1. Make sure that the required dimensions are on the measuring unit.

    2. Move the bearing pedestals to the required distances.

    3. Make sure that the distances are correct adjusted.

    4. Lock the bearing pedestals with the lever.

    18. SUBTASK 72-50-10-430-194 Install the LP Turbine Case and Rotor into the Bearing Pedestals

    1. Loosen and remove the eight bolts and washers which attach the front balancing fixture to the installation stand.

    2. Lift the LP turbine case and rotor from the installation stand.

    3. Use a second hoist equipment. Attach a second IAE 1F10052 Two cables sling 1 off on the trunnion spools of the front balancing fixture.

    4. Turn the LP turbine case and rotor to the horizontal position.

    5. Lift the LP turbine case and rotor to the bearing pedestals.

    6. Lift the inner diffuser assembly until the clearance between the stator and the rotor is the same at the TOP and at the 6 o'clock position. Use the knurled screw at the lever arm on the front balancing fixture.

    7. Lower the LP turbine case and rotor carefully into the saddle bearing heads, part of the horizontal balancing machine.

    8. Unlock the arbor shaft.

    19. SUBTASK 72-50-10-430-195 Attach the Link Shaft to the Balancing Machine and to the Front Balancing Fixture

    1. Attach the link shaft to the horizontal balancing machine with the six hex head cap screws. Tighten the screws.

    2. Attach the link shaft to the drive flange, part of the front balancing fixture, with the six hex head cap screws. Tighten the screws. Use CoMat 02-129 MARKER. Identify on the link shaft and the arbor shaft the assembly position.

    20. SUBTASK 72-50-10-430-196 Balance the Turbine Rotor Assembly

    1. CAUTION

      MAKE SURE THAT THE ARBOR SHAFT IS UNLOCKED.

      Start the horizontal balancing machine. Balance the LP turbine rotor assembly at 900 rpm minimum at planes E and F. The direction of the revolution is right, seen in the flight direction.

    2. Make balance runs as much as necessary until the unbalance becomes stable.

    3. Record the initial unbalance. This value includes the unbalance of the arbor shaft.

    4. Release the inner diffuser assembly. Tighten the knurled screw at the lever arm as far as possible into the special nut.

    21. SUBTASK 72-50-10-430-197 Remove the Link Shaft from the Balancing Machine and from the Front Balancing Fixture

    1. Loosen and remove the screws from the balancing machine and from the front balancing fixture.

    2. Put the link shaft in a storage box.

    22. SUBTASK 72-50-10-430-198 Remove the LP Turbine Case and Rotor from the Bearing Pedestals

    1. Use two hoist equipments and the IAE 1F10052 Two cables sling 2 off.

    2. Lift the LP turbine case and rotor from the bearing pedestals to the installation stand.

    3. Turn the LP turbine case and rotor to the vertical position, with the front balancing fixture in the down position.

    4. Remove one hoist equipment and one two cables sling from the front balancing fixture.

    23. SUBTASK 72-50-10-430-199 Attach the Front Balancing Fixture in to the Installation Stand

    1. Refer to: Figure

    2. Lower the LP turbine case and rotor with the balancing assembly into the installation stand.

    3. Attach the front balancing fixture with the eight bolts and washers. Tighten the bolts.

    24. SUBTASK 72-50-10-430-200 Remove the Rear Balancing Flange from the LP Turbine Case Rear Flange

    1. Refer to: Figure

    2. Loosen and remove the 19 screws which attach the rear balancing flange to the LP turbine case rear flange.

    3. Lift the rear balancing flange from the LP turbine case and rotor.

    4. Install the rear balancing flange in the installation stand. Attach the rear balancing flange with the hand knob and washer.

    5. Remove the second hoist equipment and the second two cables sling from the rear balancing flange.

    25. SUBTASK 72-50-10-430-201 Remove the Nuts from the Arbor Flange of the Front Balancing Fixture

    1. Refer to: Figure

    2. Lock the arbor shaft with the plastic knob, part of the front balancing fixture.

    3. Loosen and remove the 10 nuts and washers which attach the stage 6 disk to the arbor flange.

    26. SUBTASK 72-50-10-430-202 Remove the Bolts from the LP Turbine Case Front Flange

    1. Refer to: Figure

    2. Loosen and remove the 25 screws which attach the LP turbine case front flange to the front balancing fixture.

    27. SUBTASK 72-50-10-430-203 Install the Assembled Fixture on to the LP Turbine Case and Rotor

      CAUTION

      MAKE SURE THE SUPPORT FIXTURE IS CORRECTLY LOCKED ON THE LIFTING FIXTURE. IF THE FIXTURES ARE NOT CORRECTLY LOCKED, THE LP TURBINE CASE AND ROTOR PARTS CAN BE DAMAGED DURING HANDLING OF THE LP TURBINE ASSEMBLY.

    1. Refer to: Figure

    2. Loosen the three nuts of the support fixture. Turn back the three guide sleeves of the lifting fixture. Safety with the three nuts.

    3. Use hoist equipment and lift the assembled lifting fixture and the support fixture with the chain shackles. Install the guide pin to the support fixture.

    4. Install them to the LP turbine case and rotor. Monitor the TOP mark and the dowel pin on the rear flange of the LP turbine case. During installation, make sure that the end of the guide pin engages through a hole of the inner flange of the stage 6 disk.

    5. Attach the lifting fixture to the rear flange of the LP turbine case. Use the 19 hex head cap screws and plaster washers. Tighten the screws.

    6. Loosen the three nuts. Turn down the three guide sleeves until the support fixture touches the rear face of the stage 6 disk connecting flange.

    7. Turn the six clamps out and attach them with the knurled nuts. Make sure that all the hooks of the clamps engage the front flange of the stage 6 disk.

    8. Tighten the three nuts of the support fixture.

    28. SUBTASK 72-50-10-430-204 Install the Hydraulic Basic Fixture on to the Front Balancing Fixture

    1. Refer to: Figure

    2. Turn the IAE 1M14012 Hydraulic puller- pusher 1 off into the front balancing fixture.

    3. Install the flange, part of the IAE 1M14057 Hydraulic basic fixture 1 off. The word DISASSEMBLY is up.

    4. Attach the flange with the six hex head cap screws to the support fixture.

    5. Install the hydraulic cylinder, part of the hydraulic basic fixture, on to the flange with the thread down.

    29. SUBTASK 72-50-10-430-205 Remove the LP Turbine Case and Rotor from the Front Balancing Fixture

      CAUTION

      MAKE SURE THAT THE LP TURBINE INNER DIFFUSER SUPPORT FIXTURE ON THE FRONT BALANCING FIXTURE IS IN THE RETRACTED POSITION. THE KNURLED SCREW MUST BE TIGHTENED AS FAR AS POSSIBLE INTO THE SPECIAL NUT. WITHOUT THIS PROCEDURE, THE LP TURBINE INNER DIFFUSER CAN BE DAMAGED DURING REMOVAL FROM THE FRONT BALANCING FIXTURE.

    1. Connect the IAE 1F10026 Hydraulic hand pump 1 off to the hydraulic basic fixture.

    2. Operate the hydraulic puller-pusher with the hydraulic pump to pull off the stage 6 disk from the arbor flange.

    30. SUBTASK 72-50-10-430-206 Remove the Hydraulic Basic Fixture

    1. Refer to: Figure

    2. Disconnect the hydraulic pump from the hydraulic basic fixture.

    3. Remove the hydraulic cylinder from the flange.

    4. Loosen and remove the six hex head cap screws which attach the flange to the support fixture. Remove the flange.

    5. Turn the hydraulic puller-pusher out of the front balancing fixture.

    31. SUBTASK 72-50-10-430-207 Remove the LP Turbine Case and Rotor with the Assembled Fixture from the Installation Stand

    1. Refer to: Figure

    2. Lift the LP turbine case and rotor from the installation stand.

    32. SUBTASK 72-50-10-430-208 Turn the Arbor Shaft of the Front Balancing Fixture

    1. Release the arbor shaft with the plastic knob, part of the front balancing fixture.

    2. Turn the arbor shaft by 180 degrees apart.

    3. Lock the arbor shaft with the plastic knob, part of the front balancing fixture.

    33. SUBTASK 72-50-10-430-209 Increase the Temperature of the Arbor Flange with the Expanding Heater

    1. Install the IAE 1J12283 Expanding heater 1 off on to the arbor flange.

    2. Increase the temperature of the arbor flange with the expanding heater to get a maximum temperature of 248.0 deg F (120.0 deg C). Increase the temperature for 15 minutes. Use the IAE 6F10027 Heater control unit 1 off.

    34. SUBTASK 72-50-10-430-210 Lift the LP Turbine Case and Rotor above the Front Balancing Fixture

    1. Lift the LP turbine case and rotor above the front balancing fixture.

    35. SUBTASK 72-50-10-430-211 Remove the Expanding Heater from the Arbor Flange

    1. Switch off the heater control unit.

    2. Remove the expanding heater from the arbor flange.

    36. SUBTASK 72-50-10-430-212 Install the LP Turbine Case and Rotor on to the Front Balancing Fixture

      CAUTION

      MAKE SURE THAT THE LP TURBINE INNER DIFFUSER SUPPORT FIXTURE ON THE FRONT BALANCING FIXTURE IS IN THE RETRACTED POSITION. THE KNURLED SCREW MUST BE TIGHTENED AS FAR AS POSSIBLE INTO THE SPECIAL NUT. WITHOUT THIS PROCEDURE, THE LP TURBINE INNER DIFFUSER CAN BE DAMAGED DURING INSTALLATION ON THE FRONT BALANCING FIXTURE.

    1. Refer to: Figure

    2. Lower the LP turbine case and rotor carefully on to the front balancing fixture. Monitor the TOP mark. Make sure that the front end of the guide pin engages through a hole of the arbor flange.

    3. CAUTION

      MAKE SURE THAT THE PREVIOUSLY IDENTIFIED POSITIONS ON THE DISK AND THE ARBOR SHAFT ARE 180 DEGREES APART.

      Loosen the six knurled nuts of the support fixture. Turn the six clamps to the inner so that the stage 6 disk is free. Tighten the nuts.

    37. SUBTASK 72-50-10-430-213 Install the Hydraulic Basic Fixture on to the Front Balancing Fixture

    1. Refer to: Figure

    2. Turn the IAE 1M14012 Hydraulic puller- pusher 1 off into the front balancing fixture.

    3. Install the flange, part of the IAE 1M14057 Hydraulic basic fixture 1 off. The word ASSEMBLY is up.

    4. Attach the flange with the six hex head cap screws to the support fixture.

    5. Install the hydraulic cylinder, part of the hydraulic basic fixture, on to the flange with the thread up.

    6. Install the knurled nut on the hydraulic puller-pusher.

    7. Tighten the knurled nut on to the hydraulic puller-pusher.

    38. SUBTASK 72-50-10-430-214 Press the Stage 6 Disk on to the Arbor Flange of the Front Balancing Fixture

    1. Connect the IAE 1F10026 Hydraulic hand pump 1 off to the hydraulic basic fixture.

    2. Operate the hydraulic puller-pusher with the hydraulic pump to press the stage 6 disk on to the arbor flange.

    39. SUBTASK 72-50-10-430-215 Remove the Hydraulic Basic Fixture

    1. Refer to: Figure

    2. Disconnect the hydraulic pump from the hydraulic basic fixture.

    3. Loosen and remove the knurled nut from the hydraulic puller-pusher.

    4. Remove the hydraulic cylinder from the flange.

    5. Loosen and remove the six hex head cap screws which attach the flange to the support fixture. Remove the flange.

    6. Turn the hydraulic puller-pusher out of the front balancing fixture.

    40. SUBTASK 72-50-10-430-216 Remove the Lifting Fixture and the Support Fixture

    1. Loosen and remove the 19 screws which attach the lifting fixture to the turbine case rear flange.

    2. Remove the lifting fixture and the support fixture. Use hoist equipment.

    3. Remove the guide pin from the support fixture.

    4. Put the assembled fixture in a rack pallet.

    41. SUBTASK 72-50-10-430-217 Attach the LP Turbine Case Front Flange on to the Front Balancing Fixture

    1. Refer to: Figure

    2. Attach the LP turbine case front flange with the 25 hex head screws on to the front balancing fixture. Tighten the screws.

    42. SUBTASK 72-50-10-430-218 Attach the Stage 6 Disk on to the Arbor Flange of the Front Balancing Fixture

    1. Refer to: Figure

    2. Attach the stage 6 disk with the 10 washers and nuts on to the arbor flange of the front balancing fixture.

      NOTE

      The tightening torque includes the self-locking torque value.

    3. Torque the nuts across to between 716.9 to 849.7 lbfin (81.0 to 96.0 Nm).

    43. SUBTASK 72-50-10-430-219 Install the Rear Balancing Flange on to the LP Turbine Case Rear Flange

    1. Refer to: Figure

    2. Remove the hand knob and the washer which secure the rear balancing flange to the installation stand.

    3. Use the hoist equipment and the IAE 1F10052 Two cables sling 1 off. Remove the rear balancing flange from the installation stand.

    4. Lift the IAE 1M14047 Rear balancing flange with the two cables sling above the LP turbine case.

    5. Lower the rear balancing flange carefully on to the front balancing fixture and the LP turbine case rear flange. Monitor the TOP mark.

    6. Attach the rear balancing flange with the 19 hex head screws on to the LP turbine case rear flange. Tighten the screws.

    44. SUBTASK 72-50-10-430-300 Adjust the Dimensions of the LP Turbine Case and Rotor

    1. Refer to: Figure

    2. Adjust the required dimensions on the balancing measuring unit.

      A = 12.20in. (310.0 mm).

      B = 10.43in. (265.0 mm).

      C = 6.89in. (175.0 mm).

      R1 = 9.53in. (242.0 mm).

      R2 = 9.06in. (230.0 mm).

    45. SUBTASK 72-50-10-430-220 Install the LP Turbine Case and Rotor in to the Bearing Pedestals

    1. Loosen and remove the eight bolts and washers which attach the front balancing fixture to the installation stand.

    2. Lift the LP turbine case and rotor from the installation stand.

    3. Use a second hoist equipment. Attach a second IAE 1F10052 Two cables sling 1 off on the trunnion spools of the front balancing fixture.

    4. Turn the LP turbine case and rotor to the the horizontal position.

    5. Lift the LP turbine case and rotor to the bearing pedestals.

    6. Lower the LP turbine case and rotor carefully into the saddle bearing heads.

    7. Unlock the arbor shaft.

    46. SUBTASK 72-50-10-430-221 Attach the Link Shaft to the Balancing Machine and to the Front Balancing Fixture

    1. Attach the link shaft to the horizontal balancing machine with the six hex head cap screws. Tighten the screws.

    2. Attach the link shaft to the drive flange, part of the front balancing fixture, with the six hex head cap screws. Tighten the screws. Monitor the same position.

    47. SUBTASK 72-50-10-430-222 Balance the Turbine Rotor Assembly

    1. Refer to: Figure

      NOTE

      The initial unbalance must not be more than 12 ozin (8640 gmm) per plane. The initial unbalance must not be more than 6 ozin (4320 gmm) per plane if unbalance vectors are in 30 degrees of each other. The remaining unbalance must not be more than 0.40 ozin (288 gmm) per plane.

    2. Lift the inner diffuser assembly until the clearance between the stator and the rotor is the same at the TOP and at the 6 o'clock position. Use the knurled screw at the lever arm on the front balancing fixture.

    3. CAUTION

      MAKE SURE THAT THE ARBOR SHAFT IS UNLOCKED.

      Start the horizontal balancing machine. Balance the LP turbine rotor assembly at 900 rpm minimum at planes E and F. The direction of the revolution is right, seen in the flight direction.

    4. Make as many balance runs as necessary until the unbalance becomes stable.

    5. Record the initial unbalance. This value includes the unbalance of the arbor shaft.

      NOTE

      If the initial unbalance is more than the permitted limit, disassemble the LP turbine case and rotor. Examine for fits, burrs, runout and unbalance of each components.

    6. Find the unbalance of the rotor assembly.

    48. SUBTASK 72-50-10-430-223 Correct the Unbalance with Counterweights

      CAUTION

      HOLD THE BOLTS IN THEIR POSITION IF YOU LOOSEN AND REMOVE THE NUTS FROM THE BOLTS. DO NOT TURN THE BOLTS OR MAKE TO-AND-FRO MOVEMENTS. THE DISK/INNER AIR SEAL FLANGES AND/OR THE BOLTS CAN BE DAMAGED BY SCORES. DO THE SAME PROCEDURE IF YOU INSTALL THE NUTS ON TO THE BOLTS.

      NOTE

      1. Add counterweights under the nuts at the stage 3 disk location (Plane E) and under the nuts at the stage 7 disk (Plane F) to correct the unbalance.

      2. A maximum of seven washer type counterweights can be used per plane, but a maximum of five counterweights one after the other.

    1. Refer to: Figure

    2. Mark all the nuts to be removed to install the weights.

    3. Loosen the identified nuts. Hold the bolts stationary.

    4. Add the counterweights.

    5. Install the identified nuts at the same position as previously. Tighten the nuts. Use the IAE 1M14055 Special wrench 1 off.

      NOTE

      The tightening torque value includes the self locking torque value.

    6. Torque the nuts with the IAE 1M14048 Torque wrench adapter 1 off in two steps.

    7. Torque the nuts at the first step to between 62.0 to 72.0 lbfin (7.0 to 8.0 Nm).

    8. Torque the nuts at the second step to between 119.0 to 133.0 lbfin. (13.5 to 15.0 Nm).

    49. SUBTASK 72-50-10-430-301 Do the Check for the Remaining Unbalance

      NOTE

      If the remaining unbalance is more than 0.40 ozin (288 gmm) per plane, correct the unbalance as per Step.

    1. Do the check for the remaining unbalance, refer to Step steps B., C., D. and E.

    2. Record the balancing values.

    3. Remove all the identification marks and high point position marks in the rotor drum. Use CoMat 02-069 DISPOSABLE CLEANING TISSUESs or clean cloth and CoMat 01-031 ACETONE (CH3)2CO.

    4. Release the inner diffuser assembly. Tighten the knurled screw at the lever arm as far as possible into the special nut.

    50. SUBTASK 72-50-10-430-224 Remove the Link Shaft from the Balancing Machine and from the Front Balancing Fixture

    1. Loosen and remove the screws from the balancing machine and from the front balancing fixture.

    2. Put the link shaft in a storage box.

    51. SUBTASK 72-50-10-430-225 Remove the LP Turbine Case and Rotor from the Bearing Pedestals

    1. Use two hoist equipments and the IAE 1F10052 Two cables sling 2 off.

    2. Lift the LP turbine case and rotor from the bearing pedestals to the installation stand.

    3. Turn the LP turbine case and rotor to the vertical position, front balancing fixture in the down position.

    4. Remove one hoist equipment and one two cables sling from the front balancing fixture.

    52. SUBTASK 72-50-10-430-226 Attach the Front Balancing Fixture in to the Installation Stand

    1. Refer to: Figure

    2. Lower the LP turbine case and rotor with the balancing assembly into the installation stand.

    3. Attach the front balancing fixture with the eight bolts and washers. Tighten the bolts.

    53. SUBTASK 72-50-10-430-227 Remove the Rear Balancing Flange from the LP Turbine Case Rear Flange

    1. Refer to: Figure

    2. Loosen and remove the 19 screws which attach the rear balancing flange to the LP turbine case rear flange.

    3. Lift the rear balancing flange from the LP turbine case and rotor.

    4. Install the rear balancing flange in the installation stand. Attach the rear balancing flange with the hand knob and washer.

    5. Remove the second hoist equipment and the second two cables sling from the rear balancing flange.

    54. SUBTASK 72-50-10-430-228 Remove the Nuts from the Arbor Flange of the Front Balancing Fixture

    1. Refer to: Figure

    2. Lock the arbor shaft with the plastic knob, part of the front balancing fixture.

    3. Loosen and remove the 10 nuts and washers which attach the stage 6 disk to the arbor flange.

    55. SUBTASK 72-50-10-430-229 Remove the Bolts from the LP Turbine Case Front Flange

    1. Refer to: Figure

    2. Loosen and remove the 25 screws which attach the LP turbine case front flange to the front balancing fixture.

    56. SUBTASK 72-50-10-430-230 Install the Assembled Fixture on to the LP Turbine Case and Rotor

      CAUTION

      MAKE SURE THE SUPPORT FIXTURE IS CORRECTLY LOCKED ON THE LIFTING FIXTURE. IF THE FIXTURES ARE NOT CORRECTLY LOCKED, THE LP TURBINE CASE AND ROTOR PARTS CAN BE DAMAGED DURING HANDLING OF THE LP TURBINE ASSEMBLY.

    1. Refer to: Figure

    2. Loosen the three nuts of the support fixture. Turn back the three guide sleeves of the lifting fixture. Safety the three nuts.

    3. Use hoist equipment to lift the assembled lifting fixture and the support fixture with the chain shackles. Install the guide pin to the support fixture.

    4. Install the assembled fixture to the LP turbine case and rotor. Monitor the TOP mark and the dowel pin on the rear flange of the LP turbine case. During installation, make sure that the end of the guide pin engages through a hole of the inner flange of the stage 6 disk.

    5. Attach the lifting fixture to the rear flange of the LP turbine case. Use the 19 hex head cap screws and plaster washers. Tighten the screws.

    6. Loosen the three nuts. Turn down the three guide sleeves until the support fixture touches the rear face of the stage 6 disk connecting flange.

    7. Turn the six clamps out and attach them with the knurled nuts. Make sure that all the hooks of the clamps engage the front flange of the stage 6 disk.

    8. Tighten the three nuts of the support fixture.

    57. SUBTASK 72-50-10-430-231 Install the Hydraulic Basic Fixture on to the Front Balancing Fixture

    1. Refer to: Figure

    2. Turn the IAE 1M14012 Hydraulic puller- pusher 1 off into the front balancing fixture.

    3. Install the flange, part of the IAE 1M14057 Hydraulic basic fixture 1 off. The word DISASSEMBLY is up.

    4. Attach the flange with the six hex head cap screws to the support fixture.

    5. Install the hydraulic cylinder, part of the hydraulic basic fixture, on to the flange with the thread down.

    58. SUBTASK 72-50-10-430-232 Pull off the Stage 6 Disk from the Arbor Flange

      CAUTION

      MAKE SURE THAT THE LP TURBINE INNER DIFFUSER SUPPORT FIXTURE ON THE FRONT BALANCING FIXTURE IS IN THE RETRACTED POSITION. THE KNURLED SCREW MUST BE TIGHTENED AS FAR AS POSSIBLE INTO THE SPECIAL NUT. WITHOUT THIS PROCEDURE, THE LP TURBINE INNER DIFFUSER CAN BE DAMAGED DURING REMOVAL OF THE FRONT BALANCING FIXTURE.

    1. Connect the IAE 1F10026 Hydraulic hand pump 1 off to the hydraulic basic fixture.

    2. Operate the hydraulic puller-pusher with the hydraulic pump to pull off the stage 6 disk from the arbor flange.

    59. SUBTASK 72-50-10-430-233 Remove the Hydraulic Basic Fixture

    1. Refer to: Figure

    2. Disconnect the hydraulic pump from the hydraulic basic fixture.

    3. Remove the hydraulic cylinder from the flange.

    4. Loosen and remove the six hex head cap screws which attach the flange to the support fixture. Remove the flange.

    5. Turn the hydraulic puller-pusher out of the front balancing fixture.

    60. SUBTASK 72-50-10-430-234 Remove the LP Turbine Case and Rotor with the Assembled Fixture from the Front Balancing Fixture

    1. Refer to: Figure

    2. Lift the LP turbine case and rotor from the front balancing fixture.

    3. Put the LP turbine case and rotor on the IAE 1M14009 Storage stand 1 off.

    4. Safety the LP turbine case and rotor front flange to the storage stand. Use the four slotted heel clamp straps.

    61. SUBTASK 72-50-10-430-235 Remove the Lifting Fixture and the Support Fixture

    1. Loosen and remove the 19 screws which attach the lifting fixture to the turbine case rear flange.

    2. Remove the lifting fixture and the support fixture. Use hoist equipment.

    3. Remove the guide pin from the support fixture.

    62. SUBTASK 72-50-10-430-236 Remove the Front Balancing Fixture from the Installation Stand

    1. Refer to: Figure

    2. Use a hoist and install the IAE 1F10052 Two cables sling 1 off to the trunnion spools of the front balancing fixture.

    3. Loosen and remove the eight bolts and washers which attach the front balancing fixture to the installation stand.

    4. Lift the front balancing fixture from the installation stand.

    5. Turn the front balancing fixture with the arbor shaft down.

    6. Install the front balancing fixture in the installation stand.

    7. Remove the two cables sling.

    63. SUBTASK 72-50-10-430-243 Disassemble the Lifting Fixture and the Support Fixture

    1. Remove the three nuts on the guide sleeves.

    2. Use hoist equipment. Disengage the lifting fixture from the support fixture.

    3. Put the lifting fixture and the support fixture on a rack pallet.

    64. SUBTASK 72-50-10-430-289 Check the Bolt Connections of the LP Turbine Rotor

      CAUTION

      HOLD THE BOLTS IN THEIR POSITION IF YOU CHECK THE NUTS AGAIN. DO NOT TURN THE BOLTS OR MAKE TO-AND-FRO MOVEMENTS. THE DISK/INNER AIR SEAL FLANGES AND/OR THE BOLTS CAN BE DAMAGED BY SCORES.

    1. Check all nuts again in clockwise direction which clamp the rotors together.

    2. Check all nuts again in clockwise direction which clamp the stage 3 airseal to the stage 3 disk.

    3. The range of the torque value must be to between 119.0 to 133.0 lbfin (13.5 to 15.0 Nm).

    65. SUBTASK 72-50-10-430-244 Identify the LP Turbine Case and Rotor

    1. Refer to: Figure

      NOTE

      1. The LP turbine case and rotor assemblies are identified by a serial number, part number and the ATA reference 72-50-10. The identification marks are on the LP turbine case front flange outer diameter in the TOP position. During production assembly, the LP turbine case and rotor assemblies are identified by the same serial number as the LP turbine case serial number. The serial number of the LP turbine case is on the rear end of the LP turbine case in the TOP position.

      2. After overhaul of the LP turbine case and rotor, the new assembly must be identified by the serial number of the original LP turbine case and rotor assembly.

      2. Identify the LP turbine case and rotor assembly as follows:

      1. If the same LP turbine case is used, the serial number is correct.

      2. If a new LP turbine case is used, vibro-peen the serial number, the part number and the ATA reference 72-50-10 from off the old LP turbine case and rotor assembly on to the new LP turbine case front flange outer diameter in the TOP position. Refer to the SPM TASK 70-09-00-400-501 and to Figure.

      3. If a LP turbine case from a different original LP turbine case and rotor assembly is used, cross out the serial number. Vibro-peen the correct serial number adjacent to the old identification mark. Refer to the SPM TASK 70-09-00-400-501 and to Figure.

    3. Record the serial number, part number and the life time of the LP turbine case and rotor assembly.

    66. Figure: Press on and Pull off the LP Turbine Rotor Assembly

    Press on and Pull off the LP Turbine Rotor Assembly

    Figure: Balancing Tools for the LP Turbine Assembly

    Balancing Tools for the LP Turbine Assembly

    Figure: Balancing of the LP Turbine Assembly

    Balancing of the LP Turbine Assembly

    Figure: Counterweights for Balance of the LP Turbine Assembly

    Counterweights for Balance of the LP Turbine Assembly

    Figure: Identify the LP Turbine Case and Rotor

    Identify the LP Turbine Case and Rotor

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Hardware change (Editorial)

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:33591
Enterprise Name:KIMBERLY-CLARK CORP
BU Name:KIMBERLY-CLARK CORP
Street:1400 HOLCOMB BRIDGE ROAD
City:ROSWELL
State:GA
Zip Code:30076-2199
Country:USA
Phone Number:1-215-888-0040
Fax Number:1-920-380-1303
Internet:www.kimberley-clark.com
Manufacturer Code:IAE28
Enterprise Name:DELETED
BU Name:DELETED, SEE CAGE CODE C4690
Manufacturer Code:K3504
Enterprise Name:INDESTRUCTIBLE PAINT CO LTD
BU Name:NULL
Street:25 PENTOS DRIVE
City:SPARKHILL
Province:BIRMINGHAM
Zip Code:B11 3TA
Country:GREAT BRITAIN
Phone Number:44-121-7022485
Fax Number:44-121-7784338
Email:sales@indestructible.co.uk
Internet:www.indestructible.co.uk
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 01-031
Type:sp01
Supply Short Name:CoMat 01-031 ACETONE (CH3)2CO
Supply Name:CoMat 01-031 ACETONE (CH3)2CO
Specification Groups:
Doc NumberType
OMAT: 150 (RR REF)COMMERCIAL GRADE O-A-51
PMC 9008 (PW REF)COMMERCIAL GRADE O-A-51
JCR-041 (JAEC REF)COMMERCIAL GRADE O-A-51
MTH 169 (98%) (MTU REF)COMMERCIAL GRADE O-A-51
Suppliers:
ManufacturerRemarks
LOCAL
K6835
81348
K3504
U1185
24853
70657
Manufacturer Code:33591
Supply Number:CoMat 02-069
Type:sp01
Supply Short Name:CoMat 02-069 DISPOSABLE CLEANING TISSUES
Supply Name:CoMat 02-069 DISPOSABLE CLEANING TISSUES
Specification Groups:
Doc NumberType
OMAT: 2/67WORKHORSE / KIMWIPES NO. 7105
Suppliers:
ManufacturerRemarks
33591
IE319
IE320
IE321
K4182
LOCAL
Manufacturer Code:IAE28
Supply Number:CoMat 02-129
Type:sp01
Supply Short Name:CoMat 02-129 MARKER
Supply Name:CoMat 02-129 MARKER
Specification Groups:
Doc NumberType
MTH 557FELT PEN
MTH 558FELT PEN
Suppliers:
ManufacturerRemarks
IAE28
Manufacturer Code:00BB6
Supply Number:CoMat 07-038
Type:sp01
Supply Short Name:CoMat 07-038 AIR DRYING ENAMEL
Supply Name:CoMat 07-038 AIR DRYING ENAMEL
Specification Groups:
Doc NumberType
OMAT:7/22B (RR REF)IP9138 R1
JCR-029 (JAEC REF)
Suppliers:
ManufacturerRemarks
00BB6
K3504
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 1F10026
Tool Name:IAE 1F10026 Hydraulic hand pump
Manufacturer Code:0AM53
Tool Number:IAE 1F10052
Tool Name:IAE 1F10052 Two cables sling
Manufacturer Code:0AM53
Tool Number:IAE 1J12283
Tool Name:IAE 1J12283 Expanding heater
Manufacturer Code:0AM53
Tool Number:IAE 1M14000
Tool Name:IAE 1M14000 Lifting fixture
Manufacturer Code:0AM53
Tool Number:IAE 1M14001
Tool Name:IAE 1M14001 Support fixture
Manufacturer Code:0AM53
Tool Number:IAE 1M14009
Tool Name:IAE 1M14009 Storage stand
Manufacturer Code:0AM53
Tool Number:IAE 1M14012
Tool Name:IAE 1M14012 Hydraulic puller- pusher
Manufacturer Code:0AM53
Tool Number:IAE 1M14045
Tool Name:IAE 1M14045 Installation stand
Manufacturer Code:0AM53
Tool Number:IAE 1M14047
Tool Name:IAE 1M14047 Rear balancing flange
Manufacturer Code:0AM53
Tool Number:IAE 1M14048
Tool Name:IAE 1M14048 Torque wrench adapter
Manufacturer Code:0AM53
Tool Number:IAE 1M14055
Tool Name:IAE 1M14055 Special wrench
Manufacturer Code:0AM53
Tool Number:IAE 1M14057
Tool Name:IAE 1M14057 Hydraulic basic fixture
Manufacturer Code:0AM53
Tool Number:IAE 1M14099
Tool Name:IAE 1M14099 Front balancing fixture
Manufacturer Code:0AM53
Tool Number:IAE 1M14125
Tool Name:IAE 1M14125 Guide pin
Manufacturer Code:0AM53
Tool Number:IAE 6F10027
Tool Name:IAE 6F10027 Heater control unit
Manufacturer Code:LOCAL
Tool Number:Rack pallet
Tool Name:Rack pallet
Manufacturer Code:LOCAL
Tool Number:Schenck HL5U
Tool Name:Horizontal Balancing Machine