Preliminary Requirements

Procedure

1. SUBTASK 72-50-00-540-051 Examine the Shipping Equipment

   1. Examine the IAE 5F10125 Shipping equipment 1 off externally. Refer to Figure.

2. SUBTASK 72-50-00-540-052 Open the Shipping Equipment

   1. Refer to: Figure

   2. Loosen and remove the attaching parts of the shipping equipment.

   3. Install hoist equipment to the upper half of the shipping equipment.

   4. Remove the upper half of the shipping equipment.

3. SUBTASK 72-50-00-540-053 Check the Desiccant and Humidity Indicator

   1. 

      CAUTION

      MAKE SURE THAT THE DESICCANT BAGS WILL NOT BE DAMAGED OR RUPTURED. IF PARTICLES OF DESICCANT ENTER THE LP TURBINE MODULE, REMOVE THE LP TURBINE MODULE FROM THE SHIPPING FRAME. DISASSEMBLE THE LP TURBINE MODULE AS FAR AS NECESSARY TO REMOVE ALL DESICCANT PARTICLES COMPLETELY (REFER TO TASK 72-50-00-030-001-A00 AND TASK 72-50-10-030-007-A00)

      Do a check for CoMat 12-022 DESICCANT SELF INDICATING.

4. SUBTASK 72-50-00-540-054 Remove the Desiccant

   1. Remove the CoMat 12-022 DESICCANT SELF INDICATING from the IAE 5F10125 Shipping equipment 1 off.

5. SUBTASK 72-50-00-540-055 Check the Engine Documentation

   1. Remove CoMat 12-004 P.V.C. SHEET with the engine documentation from the shipping equipment.

   2. Do a check for the numbers of items with the items listed on the records.

6. SUBTASK 72-50-00-540-056 Remove the Transportation Blanks

   1. Refer to: Figure

   2. Remove the transportation blanks from the LP turbine module.

   3. Install the IAE 1M14127 Support plate 2 off on the LP turbine case front flange and the LP turbine shaft. Attach each segment of the support plate with the seven bolts and nuts to the LP turbine case. Tighten the bolts. Refer to Figure.

   4. Remove the IAE 1F10107 Protective cover (tail cone flange) 1 off from the rear flange of the LP turbine module.

7. SUBTASK 72-50-00-540-057 Attach the Handling Fixture to the LP Turbine Module

   1. Refer to: Figure

   2. Install the IAE 1F10052 Two cables sling 1 off to the front spool of the IAE 1F10058 Handling fixture 1 off.

   3. Install the IAE 1F10084 Support fixture 1 off to the IAE 1F10063 Expanding retainer 1 off.

   4. Install the expanding retainer to the inner diameter of the LP turbine shaft. Attach the support fixture to the rear inner flange of the turbine exhaust case.

   5. Turn the handwheel of the support fixture counterclockwise until the support is installed safely in the rear end of the LP turbine shaft.

   6. Turn the knob of the expanding retainer counterclockwise to push the clamps against the inner diameter of the LP turbine shaft.

   7. Lift the handling fixture and install it to the expanding retainer. Align the handling fixture with the rear flange of the turbine exhaust case.

   8. Attach the handling fixture to the rear flange of the turbine exhaust case with the 13 screws. Tighten the screws.

   9. 

      CAUTION

      MAKE SURE THAT THE NUTS ARE TIGHTENED. IF THE FIXTURES ARE NOT CORRECTLY SECURED THE LP TURBINE CASE AND ROTOR PARTS CAN BE DAMAGED DURING HANDLING OF THE LP TURBINE MODULE.

      Safety the expanding retainer to the handling fixture with the two nuts. Tighten the nuts.

8. SUBTASK 72-50-00-540-058 Remove the LP Turbine Module from the Shipping Equipment

   1. Refer to: Figure

   2. Loosen the nut of the eye bolt (part of IAE 5F10149 Shipping frame 1 off).

   3. Loosen the ringnut A. Turn the ringnut A to the end position.

   4. Loosen the ringnut B from the rear end of the support.

   5. Disengage the eye bolt. Turn the block in the open position.

   6. Loosen and remove the 28 head cap screws which attach the LP turbine module to the rear support of the shipping frame.

   7. Move the LP turbine module carefully rearwards, to get it free from the shipping frame. Lift the LP turbine module from the shipping equipment.

   8. Loosen the ringnut C and remove the shaft (part of the shipping equipment) from the LP turbine shaft.

   9. Install the shaft to the front support of the shipping equipment. Close the block and safety with the eye bolt and the nut.

9. SUBTASK 72-50-00-540-059 Install the LP Turbine Module to the Horizontal Stand

   NOTE

   Safety the IAE 1F10080 Horizontal stand 1 off with the three arms.

   1. Refer to: Figure

   2. Install the shaft, part of the horizontal stand, into the front end of the LP turbine shaft. Safety the shaft to the LP turbine shaft with the ringnut C.

   3. Lower the LP turbine module carefully to the front support of the horizontal stand.

   4. Move the LP turbine module slowly down and align the shaft in the front support of the horizontal stand.

   5. Make sure that the shaft is correctly aligned to the front support. Align the bolt holes of the LP turbine case front flange with the bolt holes of the horizontal stand.

   6. Attach the LP turbine module with the 12 head cap screws to the horizontal stand. Tighten the screws.

   7. Turn the ringnuts A and B to the support to safety the LP turbine module axially to the front support of the horizontal stand. Tighten the ringnuts A and B.

   8. Turn the opened block down and safety the support. Engage the eye bolt. Tighten the nut of the eye bolt.

10. SUBTASK 72-50-00-540-060 Remove the Handling Fixture from the LP Turbine Module

    1. Refer to: Figure

    2. Turn the knob, part of the IAE 1F10063 Expanding retainer clockwise until it is blocked.

    3. Loosen the nut and turn it rearwards to the end position.

    4. Loosen and remove the 13 bolts, washers and nuts.

    5. Move the handling fixture carefully 4in. (101 mm) rearwards until it is free from the turbine exhaust case flange.

    6. Move the handling fixture carefully downwards to disengage it from the sliding hammer.

    7. Lift the handling fixture carefully away from the LP turbine module and store it.

    8. Remove the two cables sling from the handling fixture.

    9. Remove hoist equipment from the two cables sling.

    10. Turn the handwheels, part of the IAE 1F10084 Support fixture clockwise to disengage the support from the rear end of the LP turbine shaft.

    11. Disconnect the support fixture from the turbine exhaust case rear inner flange. Remove the support fixture and the retainer.

11. SUBTASK 72-50-00-540-061-B00 Install the Blind Cap to the LP Turbine Shaft (SBE 72-0037 and Pre SBE 72-0227)

    1. SBE 72-0037: Replacement of the LP turbine shaft rear end sealing ring (with tools) Method 1

    2. Refer to Figure, Figure, Figure, Figure and Figure.

       NOTE

       Use of IAE 1J12259 Seal slider without IAE 1J12243 Sizing sleeve is not permitted.

    3. Extend the sealing ring and install it to the blind cap as follows. Refer to Figure.

       1. Put the blind cap ENGINE-LP TURBINE SHAFT (72-50-41,01-150) onto a work bench with the rear end down.

       2. Install the IAE 1J12259 Seal slider 1 off onto the blind cap.

       3. Lubricate the new ENGINE-LP TURBINE SHAFT (72-50-41,01-160) sealing ring with CoMat 10-077 APPROVED ENGINE OILS.

       4. Lubricate the outer diameter faces of the seal slider and the blind cap with CoMat 10-077 APPROVED ENGINE OILS.

       5. Put the sealing ring onto the seal slider. The open side of the sealing ring must be in down direction.

       6. 

          CAUTION

          MOVE THE SEALING RING SMOOTHLY AND EQUALLY OVER THE CIRCUMFERENCE. IF NOT SO, THE SEALING RING IS EXTENDED LOCALLY. LOCAL EXTENSION CAN CAUSE DAMAGE TO THE SEALING RING.

          Push the sealing ring down with four or more fingers until it is installed into the groove of the blind cap.

       7. Remove the seal slider from the blind cap.

    4. 
       CAUTION
       DO NOT INSTALL THE BLIND CAP AND THE SEALING RING IN TO THE LP TURBINE SHAFT BEFORE B.(6). THE SEALING RING DIAMETER IS EXTENDED. THE LP TURBINE SHAFT BORE CAN CAUSE DAMAGE TO THE EXTENDED SEALING RING.

       Make the sealing ring diameter smaller as follows. Refer to Figure.

       1. Put the IAE 1J12243 Sizing sleeve 1 off onto the work bench with the front end down.

       2. Lubricate the inner diameter face of the sizing sleeve and the outer diameter of the sealing ring with CoMat 10-077 APPROVED ENGINE OILS.

       3. Put the blind cap into the sizing sleeve. Diaphragm of the blind cap must be in down direction. Refer to Figure position A.

       4. Slowly push down the blind cap until it touches the work bench. Refer to Figure position B.

       5. Keep the blind cap in the sizing sleeve for ten or more minutes.

       6. Remove the sizing sleeve from from the blind cap.

    5. Examine the sealing ring.

       1. Make sure that there is no damage on the surface.

       2. 

          CAUTION

          DO NOT CORRECT TWISTED CONDITION OF THE SEALING RING. DISCARD THE TWISTED SEALING RING.

          Make sure that the sealing ring is not twisted. Refer to Figure.

    6. Install the blind cap to the LP turbine shaft. Use the IAE 1J12221 Impact hammer 1 off.

    7. Install the internal retaining ring ENGINE-LP TURBINE SHAFT (72-50-41,01-100). Refer to Figure.

12. SUBTASK 72-50-00-540-061-D00 Install the Blind Cap to the LP Turbine Shaft (SBE 72-0227)

    1. SBE 72-0227: Provide a new blind cap with decreased seal land height.

    2. Refer to Figure, Figure, Figure and Figure.

    3. Install the new ENGINE-LP TURBINE SHAFT (72-50-41,01-160) sealing ring to the blind cap ENGINE-LP TURBINE SHAFT (72-50-41,01-150) as follows. Refer to Figure:

       1. Put the blind cap onto a work bench with the front end down.

       2. Install the IAE 1J12522 Seal slider 1 off on to the blind cap.

       3. Lubricate the sealing ring with CoMat 10-077 APPROVED ENGINE OILS.

       4. Lubricate the outer diameter face of the blind cap with CoMat 10-077 APPROVED ENGINE OILS.

       5. Put the sealing ring on the outer diameter of the blind cap. The open side of the sealing ring must be in the up direction.

       6. 

          CAUTION

          MOVE THE SEALING RING SMOOTHLY AND EQUALLY OVER ALL THE CIRCUMFERENCE. IF NOT SO, THE SEALING RING IS EXTENDED LOCALLY, LOCAL EXTENSION CAN CAUSE DAMAGE TO THE SEALING RING.

          Put the sealing ring down with four or more fingers until it is installed in to the groove of the blind cap.

       7. Remove the seal slider from the blind cap.

    4. Examine the sealing ring.

       1. 

          CAUTION

          DO NOT CORRECT TWISTED CONDITION OF THE SEALING RING. DISCARD THE TWISTED SEALING RING.

          Make sure that the sealing ring is not twisted. Refer to Figure.

    5. Install the blind cap on to the LP turbine shaft. Use the IAE 1J12221 Impact hammer.

    6. 

       CAUTION

       DO NOT USE THE INTERNAL RETAINING RING P/N RR295 WITH THE BLIND CAP P/N 5A1703.

       Install the internal retaining ring ENGINE-LP TURBINE SHAFT (72-50-41,01-100). Refer to Figure.

13. SUBTASK 72-50-00-540-062 Install the Compartment Cover

    1. Refer to: Figure

    2. Install the compartment cover to the turbine exhaust case.

    3. Install the rear thermal blanket on to the compartment cover. Align the bolt holes.

    4. Attach the 12 bolts. Torque the bolts to 101.708 lbfin (11.5 Nm).

Figure: Open the Shipping Equipment

Open the Shipping Equipment



Figure: Attachment of the Handling Fixture and the Expanding Retainer

Attachment of the Handling Fixture and the Expanding Retainer



Figure: Installation of the LP Turbine Module to the Horizontal Stand

Sheet 1



Legend

Installation of the LP Turbine Module to the Horizontal Stand

Sheet 1

Close

Figure: Installation of the LP Turbine Module to the Horizontal Stand

Sheet 2



Legend

Installation of the LP Turbine Module to the Horizontal Stand

Sheet 2

Close

Figure: Install the No. 5 Bearing Compartment Cover

Install the No. 5 Bearing Compartment Cover



Figure: Install the Blind Cap of the LP Turbine Shaft

Install the Blind Cap of the LP Turbine Shaft



Figure: SBE 72-0037: Installation of the Sealing Ring onto the Blind Cap

SBE 72-0037: Installation of the Sealing Ring onto the Blind Cap



Figure: SBE 72-0037: Installation of the Sealing Ring into the Sizing Sleeve

SBE 72-0037: Installation of the Sealing Ring into the Sizing Sleeve



Figure: SBE 72-0037: Installed Condition of the Sealing Ring

SBE 72-0037: Installed Condition of the Sealing Ring



Figure: Installation of the Sealing Ring onto the Blind Cap Method 2

Installation of the Sealing Ring onto the Blind Cap Method 2



Figure: Example of Incorrect Installation of the Sealing Ring onto the Blind Cap

Example of Incorrect Installation of the Sealing Ring onto the Blind Cap



Figure: SBE 72-0037: Installation of the Blind Cap and Retaining Ring

SBE 72-0037: Installation of the Blind Cap and Retaining Ring



Figure: SBE 72-0227: Installation of the Sealing Ring on to the Blind Cap

SBE 72-0227: Installation of the Sealing Ring on to the Blind Cap