Preliminary Requirements

Procedure

1. SUBTASK 72-32-00-220-155 Reference Fits and Clearances of the Center Bearing Housing and the Outer Roller Bearing at Location 0511

   1. Refer to Figure.

   2. Reference dimensions at location 0511. If required, use the data written as a NOTE in TASK 72-32-05-200-000 (INSPECTION-000).

      Table 1. Fits and Clearances (all dimensions are in inches)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
      LOCATION 0511 Center Bearing Housing ENGINE-PTO DRIVE SHAFT BEARING AND SUPPORT (72-32-05, 01-300), Inside Diameter
      Outer Roller Bearing ENGINE-PTO DRIVE SHAFT BEARING AND SUPPORT (72-32-05, 01-250), Outside Diameter
      Center Bearing Housing Inside Diameter	1.9686
      	1.9680	0.0003
      Outer Roller Bearing Outside Diameter	1.9685	0.0005
      	1.9683	Intf

      Table 2. Fits and Clearances (all dimensions are in millimeters)

      	NEW PART		WORN PART
      	DIMENSIONS		DIMENSIONS
      PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
      LOCATION 0511
      Center Bearing Housing ENGINE-PTO DRIVE SHAFT BEARING AND SUPPORT (72-32-05, 01-300), Inside Diameter
      Outer Roller Bearing ENGINE-PTO DRIVE SHAFT BEARING AND SUPPORT (72-32-05, 01-250), Outside Diameter
      Center Bearing Housing Inside Diameter	50.003
      	49.987	0.009
      Outside Roller Bearing Outside Diameter	50.000	0.013
      	49.994	Intf

2. SUBTASK 72-32-00-430-135 Turn the Fan Frame to the Rear End Up Position

   1. Refer to Figure.

   2. Make sure that the Fan Frame is installed, vertically with the front end up, on the turnover stand. Refer to TASK 72-32-00-430-010-A00 (ASSEMBLY-010).

   3. Release the lock pin from the holes in the handle and the support C of the turnover stand.

   4. Turn the handle to set the Fan Frame vertical with the rear end up.

   5. Install the lock pin in to position to lock the handle.

      NOTE

      Make sure that the hole in the support C and one of eight holes in the handle are aligned. If necessary, turn the handle to make the two holes aligned.

3. SUBTASK 72-32-00-430-136 Install the Rear Sling on to the Fan Frame

   1. Refer to Figure.

   2. Attach a hoist to IAE 1J12487 Rear sling 1 off.

   3. Move the rear sling adjacent to the Fan Frame rear flange of the Fan Frame.

   4. Align the 20 holes in the lift sling of the rear sling with the 20 holes in the Fan Frame rear flange.

   5. Attach the lift sling to the Fan Frame rear flange and safety with the 20 bolts and the four ring stoppers (part of the rear sling). Tighten the bolts.

4. SUBTASK 72-32-00-430-137 Remove the Fan Frame from the Turnover Stand

   1. Refer to Figure.

   2. Tighten the hoist rope/chain.

   3. Remove the 10 bolts and washers which attach each bracket to the two struts.

   4. Remove the four socket head cap screws, four nuts and the eight washers which attach each bracket to the two struts.

   5. Slowly lift and remove the Fan Frame from the brackets A and B.

5. SUBTASK 72-32-00-430-139 Install the Fan Frame in to the Fan Case (SBE 72-0435)

   1. Refer to Figure and Figure.

   2. SBE 72-0435: Introduction of Fan Case, panel and bracket scalloped for No. 4 Scavenge Tube reroute.

   3. Put the Fan Case ENGINE-FAN CASE (72-32-85, 01-100) on to IAE 1J12010 Storage stand 1 off with the rear end up.

   4. Attach the Fan Frame to the Fan Case.

      1. Move the Fan Frame above the Fan Case.

      2. Slowly lower the Fan Frame and put it in to position in the Fan Case.

      3. Align the holes in the Fan Frame struts with the holes in the Fan Case.

   5. Install the 20 dee head bolts (01-525) and nuts (01-520) which attach the Fan Frame to the Fan Case. Tighten the nuts lightly.

   6. Loosen the hoist rope/chain.

   7. Install the 68 bolts (01-535) which attach the Fan Frame to the Fan Case.

   8. Attach the bracket (01-543) to the Fan Case at 6 o'clock positions with the two bolts (01-548).

   9. Torque the nuts (01-520) to between 180 lbfin and 220 lbfin (20.00 Nm and 25.00 Nm). Strut sequence to torque the nuts is:

      No. 1 Strut, No. 6 Strut, No. 3 Strut, No. 8 Strut, No. 4 Strut, No. 9 Strut, No. 2 Strut, No. 7 Strut, No. 5 Strut and No. 10 Strut.

   10. Torque the bolts (01-535) and the bolts (01-548) to between 180 lbfin and 220 lbfin (20.00 Nm and 25.00 Nm). Strut sequence to torque the bolts is the same as that of Step.

6. SUBTASK 72-32-00-430-138 Remove the Brackets A and B from the Turnover Stand

   1. Refer to Figure.

   2. Install a second hoist to the shackle of the bracket A.

   3. Tighten the hoist rope/chain.

   4. Remove the four bolts and washers and the plate which attach the bracket A to the support A of the turnover stand.

   5. Move the bracket A with the hoist from the support A to the work bench.

   6. Remove the hoist from the shackle of the bracket A.

   7. Remove the bracket B from the support B of the turnover stand.

      1. Do Step to Step with bracket B to remove the bracket B from the support B.

7. SUBTASK 72-32-00-430-140 Install the Brackets A and B on to the Fan Case

   1. Refer to Figure.

   2. Attach the two adapters (part of IAE 1J12311 Turnover stand 1 off) to the flanges FD and FE on the Fan Case at 3 and 9 o'clock positions. Safety with the four bolts and nuts (part of the turnover stand). Tighten the bolts.

   3. Attach the bracket A (part of the turnover stand) to the adapter at 3 o'clock position. Safety with the four washers and bolts (part of the turnover stand). Tighten with bolts.

   4. Attach the bracket B (part of the turnover stand) to the adapter at 9 o'clock position. Safety with the four washers and bolts (part of the turnover stand). Tighten the bolts.

8. SUBTASK 72-32-00-430-141 Install the Fan Frame and Fan Case Assembly to the Turnover Stand

   1. Refer to Figure and Figure.

   2. Lift and move the Fan Frame and Fan Case Assembly adjacent to the supports A and B of the turnover stand.

   3. Slowly lower the Fan Frame and Fan Case Assembly until each square rod end of the brackets is engaged with each slot in the supports A and B.

   4. Install each of the two plates (part of the turnover stand) on to the supports A and B and safety with the four bolts and washers.

   5. Install the lock pin in to position to lock the handle of the turnover stand.

      NOTE

      Make sure that the hole in the support C and one of the eight holes in the handle are aligned. If necessary, turn the handle to make the two holes aligned.

9. SUBTASK 72-32-00-430-142 Remove the Rear Sling from the Fan Frame and Fan Case Assembly

   1. Refer to Figure.

   2. 

      WARNING

      DO NOT REMOVE THE REAR SLING UNTIL AFTER THE INSTALLATION OF THE LOCK PIN INTO THE HANDLE OF THE TURNOVER STAND. THIS CAN PREVENT THE ROTATION OF THE FAN FRAME AND FAN CASE ASSEMBLY AND INJURY TO PERSONS.

      Remove the 20 bolts and the four ring stoppers which attach the rear sling to the Fan Frame rear flange of the Fan Frame and Fan Case Assembly.

   3. Lift and remove the rear sling from the Fan Frame rear flange.

   4. Remove the hoist from the rear sling.

10. SUBTASK 72-32-00-430-415 Turn the Fan Frame and Fan Case Assembly to the No. 1 Strut Down Position

    1. Refer to Figure.

    2. Release the lock pin from the holes in the handle and the support C of the turnover stand.

    3. Turn the handle to set the Fan Frame and Fan Case Assembly horizontal with the No. 1 Strut down.

    4. Install the lock pin in to position to lock the handle.

       NOTE

       Make sure that the holes in the support C and one of eight holes in the handle are aligned. If necessary, turn the handle to make the two holes aligned.

    5. Install the stopped base and stopper assembly (part of the turnover stand) to hold the Fan Case front flange.

       1. Put the Stopper Base and Stopper Assembly on to the turnover stand.

       2. Turn the adjuster (part of the turnover stand) clockwise to lift the stopper until it fully engages with the Fan Case front flange.

       3. Tighten the set screw (part of the turnover stand) to safety the adjuster in position.

       4. Tighten the two knobs (part of the turnover stand) to safety the Fan Case front flange to the stopper.

11. SUBTASK 72-32-00-430-416 Assemble the Center Bearing Housing Assembly

    1. Refer to Figure and Figure.

    2. Install the center bearing housing ENGINE-PTO DRIVE SHAFT BEARING AND SUPPORT (72-32-05, 01-300) to IAE 1J12432 Base holder base holder 1 off.

       1. Put the center bearing housing on to the base holder.

       2. Safety the center bearing housing with the clamp and the wing nut (part of the base holder). Tighten the wing nut.

    3. Increase the temperature of the center bearing housing.

       1. Put the center bearing housing and Holder Assembly in an oven.

       2. Increase the temperature in the oven to 302 deg F (150 deg C) and keep the temperature for 20 minutes.

    4. 
       WARNING
       DO NOT TOUCH THE CENTER BEARING HOUSING WITHOUT PROTECTIVE GLOVES. THE CENTER BEARING HOUSING IS HOT.

       Install the outer roller bearing ENGINE-PTO DRIVE SHAFT BEARING AND SUPPORT (72-32-05, 01-250) in to the center bearing housing.

       1. Remove the center bearing housing and Holder Assembly from the oven.

       2. Put the outer roller bearing in to the center bearing housing.

       3. Put IAE 1J12328 Installation pusher 1 off on to the outer roller bearing and push down the installation pusher by hand.

    5. When the center bearing housing becomes cool, install the retaining ring ENGINE-PTO DRIVE SHAFT BEARING AND SUPPORT (72-32-05, 01-230) in to the groove in the center bearing housing.

    6. Lubricate the new ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-610) sealing ring 1 off and the new ENGINE-PTO DRIVE SHAFT BEARING AND SUPPORT (72-32-05, 01-180) sealing ring 1 off with CoMat 10-077 APPROVED ENGINE OILS. Install the sealing rings in to the grooves in the seal carrier ENGINE-PTO DRIVE SHAFT BEARING AND SUPPORT (72-32-05, 01-170).

    7. Install the seal carrier in to the center bearing housing.

12. SUBTASK 72-32-00-430-417 Install the Center Bearing Housing Assembly in to the Fan Frame Assembly

    1. Refer to Figure, Figure and Figure.

    2. Lubricate the new ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-600) sealing ring 1 off with CoMat 10-077 APPROVED ENGINE OILS. Install the sealing ring in to the groove in the Center Bearing Housing Assembly.

    3. Attach IAE 1J12327 Handling holder 1 off to the Center Bearing Housing Assembly.

       1. Install three screws (part of the handling holder) in to the handling holder. Put the screws to the fully forward positions so that the threads of screws are released from the threads in the handling holder.

       2. Align the three locating holes in the handling holder with the three locating pins on the Center Bearing Housing Assembly.

       3. Engage the three screws in the handling holder with the threaded holes in the center bearing housing. Tighten the screws.

          NOTE

          When you turn the screws. Keep the threads of screws released from the threads of handling holder. If the threads of screws are engaged with the threads of housing assembly and handling holder, you can not turn the screws.

    4. Remove the Center Bearing Housing Assembly from the base holder.

       1. Remove the wing nut of the base holder and open the clamp of the base holder. Remove the Center Bearing Housing Assembly.

    5. Make sure that the Fan Frame Assembly is installed horizontally with the No. 6 Strut up on the turnover stand.

    6. Install the Center Bearing Housing Assembly in to position in the No. 6 Strut of the Fan Frame Assembly with the handling holder.

    7. Remove the handling holder from the Center Bearing Housing Assembly.

       1. Remove the three screws of the handling holder from the threaded holes in the Center Bearing Housing Assembly.

       2. Remove the handling holder.

    8. Install the PTO sealing plate ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-580) on to the Fan Frame Assembly.

       1. Align the three aligning holes in the PTO sealing plate with the locating pins of the Center Bearing Housing Assembly.

       2. Put the PTO sealing plate on to the Fan Frame Assembly and safety with the eight bolts ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-560). Torque the bolts to 85 lbfin to 105 lbfin (10.0 Nm to 12.0 Nm).

          NOTE

          Do not install the two brackets ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-535) and ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-548) at this step.

13. SUBTASK 72-32-00-430-143-A00 Install the Oil Seal Tube in to the No. 6 Strut of the Fan Frame

    1. Refer to Figure and Figure.

    2. Install the oil seal tube ENGINE-PTO SHAFT SEAL TUBE (72-32-94, 01-100).

       1. Lubricate the new ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 01-154) sealing ring 1 off, the new ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 01-156) sealing ring 1 off and the new ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 01-158) sealing ring 1 off with CoMat 10-077 APPROVED ENGINE OILS.

       2. Install the sealing rings in to the grooves in the oil seal tube.

       3. Install the oil seal tube in to the No. 6 Strut.

    3. Install the four bolts (part of the IAE 1J12470 Leak check fixture 1 off) on to the oil seal tube. Tighten the bolts.

14. SUBTASK 72-32-00-430-418 Find the Center Bearing Adjusting Washer

    1. Refer to Figure and Figure.

    2. Install the setting master shaft (part of IAE 1J12131 Setting master 1 off) and the holder (part of the setting master) in to the oil seal tube, the Center Bearing Housing Assembly and the spline in the shaft bevel pinion gear.

    3. Measure the depth B.

    4. Remove the eight bolts which attach the PTO sealing plate to the Fan Frame Assembly. Remove the PTO sealing plate.

    5. Measure the thickness A of the sealing plate.

    6. Use the following formula to calculate the gap X.

       X = B - A.

    7. Find the Center Bearing Adjusting Washer ENGINE-PTO DRIVE SHAFT BEARING AND SUPPORT (72-32-05, 01-100) to ENGINE-PTO DRIVE SHAFT BEARING AND SUPPORT (72-32-05, 01-120) which thickness is nearest the value of the gap X.

    8. Remove the setting master shaft from the No. 6 Strut.

    9. Remove the holder (part of the setting master).

15. SUBTASK 72-32-00-430-419 Make Sure that the Gap between the PTO Sealing Plate and the Fan Frame Assembly is in the Limit

    1. Refer to Figure and Figure.

    2. Install the adjusting washer on to the Center Bearing Housing Assembly.

       1. Align the aligning holes in the adjusting washer with the locating pins on the Center Bearing Housing Assembly.

       2. Put the adjusting washer on to the Center Bearing Housing Assembly.

    3. Lubricate the new ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-570) sealing ring 1 off with CoMat 10-077 APPROVED ENGINE OILS. Install the ring into the grove in the PTO sealing plate ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-580).

    4. Install the PTO sealing plate ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-580) on to the Fan Frame Assembly.

       1. Align the three aligning holes in the PTO sealing plate with the locating pins on the Center Bearing Housing Assembly.

       2. Put the PTO sealing plate on to the Fan Frame Assembly and attach with the eight bolts ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-560) and ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-590). Torque the bolts to 85 lbfin to 105 lbfin (10.0 Nm to 12.0 Nm).

    5. Measure the gap C between the PTO sealing plate and the Fan Frame Assembly. If the gap C is more than 0.00078 in. (0.0198 mm), go to the Step.

16. SUBTASK 72-32-00-430-420 Install the Brackets on to the PTO Sealing Plate

    1. Refer to Figure.

    2. Install the brackets on to the PTO sealing plate.

       1. Remove the four bolts ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-560) which attach the PTO sealing plate to the Fan Frame Assembly.

       2. Install the brackets ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-535) and ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-548) on to the PTO sealing plate with the four bolts ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-560). Torque the bolts ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-560) to 85 lbfin to 105 lbfin (10.0 Nm to 12.0 Nm).

    3. Install the PTO sealing plate to the Center Bearing Housing Assembly with the three bolts ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-590). Torque the bolts to 85 lbfin to 105 lbfin (10.0 Nm to 12.0 Nm).

17. SUBTASK 72-32-00-430-421 Make sure that the Setting Master Shaft Moves Lightly

    1. Refer to Figure and 72-32-00-990-114-001.

    2. Install the setting master shaft (part of IAE 1J12131 Setting master 1 off) and the holder (part of the setting master) in to the oil seal tube, the Center Bearing Housing Assembly and the spline in the shaft bevel pinion gear.

    3. Make sure that the gap Y and the gap Z are zero.

    4. Slowly pull and push the setting master shaft by hand and make sure that the setting master shaft moves lightly.

       1. Pull the setting master shaft until the gap Z is approximately 0.8 in. (20 mm).

       2. Push the setting master shaft until the gap Z is zero.

       3. Repeat Step and Step several times.

       4. If the setting master shaft does not move lightly, do the following steps.

          1. Remove the setting master shaft from the No. 6 Strut.

          2. Remove the holder (part of the setting master).

          3. Remove the three bolts ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 02-590) that attaches the PTO sealing plate.

          4. Go to Step.

    5. Remove the setting master shaft from the No. 6 Strut.

    6. Remove the holder (part of the setting master).

    7. Install the plug "C" (part of the IAE 1J12470 Leak check fixture 1 off) on to the oil seal tube with the four bolts (part of the leak check fixture). Tighten the bolts.

18. SUBTASK 72-32-00-430-144 Install the No. 1, 2, 3 Bearing Scavenge Tube, the Hot Vent Tube, the Plug D and the Joint to the Fan Frame Struts

    1. Refer to Figure and Figure.

    2. Install the No. 1, 2, 3 Bearing Scavenge Tube INTERMEDIATE STRUCTURE OIL & AIR TRANSFER TUBES (72-32-96, 01-200).

       1. Lubricate the new ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 01-115) sealing ring 1 off with CoMat 10-077 APPROVED ENGINE OILS.

       2. Install the sealing ring in to the groove in the Scavenge Tube.

       3. Install the Scavenge Tube in to the No. 6 Strut.

    3. Install the plug D (part of IAE 1J12470 Leak check fixture 1 off) on to the Scavenge Tube and safety with the three bolts (part of the leak check fixture).

       1. Make sure that the sealing ring (part of the leak check fixture) has no damage.

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

       3. Install the sealing ring in to the groove in the plug D.

       4. Attach the plug D to the No. 1, 2, 3 Bearing Scavenge Tube and safety with the three bolts. Tighten the bolts.

    4. Install the hot vent tube INTERMEDIATE STRUCTURE OIL & AIR TRANSFER TUBES (72-32-96, 01-100).

       1. Lubricate the new ENGINE-LP COMP/INTERMEDIATE CASE MODULE (72-32-00, 01-135) sealing ring 1 off with the approved engine oil.

       2. Install the sealing ring in to the grooves in the hot vent tube.

       3. Install the hot vent tube in to the No. 3 Strut.

    5. Install the joint (part of the leak check fixture) on to the hot vent tube and safety with the three bolts (part of the leak check fixture).

       1. Make sure that the sealing ring (part of the leak check fixture) has no damage.

       2. Lubricate the sealing ring with the approved engine oil.

       3. Install the sealing ring in to the groove in the joint.

       4. Attach the joint to the hot vent tube and safety with the three bolts. Tighten the bolts.

19. SUBTASK 72-32-00-430-145 Turn the Fan Frame and Fan Case Assembly to the No. 1 Strut Up Position

    1. Refer to Figure.

    2. Release the lock pin from the holes in the handle and the support C of the turnover stand.

    3. Turn the handle to set the Fan Frame and Fan Case Assembly horizontal with the No. 1 Strut up.

    4. Install the lock pin in to position to lock the handle.

       NOTE

       Make sure that the holes in the support C and one of eight holes in the handle are aligned. If necessary, turn the handle to make the two holes aligned.

    5. Install the Stopper Base and Stopper Assembly (part of the turnover stand) to hole the Fan Case front flange.

       1. Put the Stopper Base and Stopper Assembly on to the turnover stand.

       2. Turn the adjuster (part of the turnover stand) clockwise to lift the stopper until it fully engages with the Fan Case front flange.

       3. Tighten the set screw (part of the turnover stand) to safety the adjuster in position.

       4. Tighten the two knobs (part of the turnover stand) to safety the Fan Case front flange to the stopper.

20. SUBTASK 72-32-00-430-146 Install the Plug of the Leak Check Fixture to the Oil Feed Adapter

    1. Refer to Figure and Figure.

    2. Remove the three bolts which attach the oil tube cover to the oil feed adapter in the No. 4 Strut. Remove the oil tube cover.

    3. Install the plug A (part of IAE 1J12470 Leak check fixture 1 off) on to the oil feed adapter.

       1. Make sure that the sealing ring (part of the leak check fixture) has no damage.

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

       3. Install the sealing ring in to the groove in the plug A.

       4. Attach the plug A to the oil feed adapter and safety with the three bolts (part of the leak check fixture). Tighten the bolts.

21. SUBTASK 72-32-00-430-324-A00 Install the Plug E of the Leak Check Fixture to the Fan Frame (Pre SBE 72-0132)

    1. Refer to Figure.

    2. Put the plug E (part of IAE 1J12470 Leak check fixture 1 off) into the drain hole in the Fan Frame.

    3. Make sure that there is no clearance between the plug E and the drain hole.

22. SUBTASK 72-32-00-430-324-B00 Install the Packing Seat C of the Leak Check Fixture to the Fan Frame Rear End (SBE 72-0132)

    SBE 72-0132: Removal of the Stage 6 Buffer Air System

    1. Refer to Figure.

    2. Make sure that the sealing ring (part of IAE 1J12470 Leak check fixture 1 off) as no damage.

    3. Lubricate the sealing ring with CoMat 10-077 APPROVED ENGINE OILS. Install the sealing ring into the groove in the packing seat C (part of the leak check fixture).

    4. Attach the packing seat C to the Fan Frame and safety with the eight bolts (part of the leak check fixture). Tighten the bolts.

23. SUBTASK 72-32-00-430-147 Install the Packing Seats A and B of the Leak Check Fixture to the Stub Shaft and the Hydraulic Ring

    1. Refer to Figure.

    2. Install the two sealing rings (part of IAE 1J12470 Leak check fixture 1 off) to the packing seat A and Mandrel Assembly (part of the leak check fixture).

       1. Make sure that the two sealing rings, the packing seat B, the washer and the handles B (part of the leak check fixture) are removed from the packing seat A and Mandrel Assembly. For the removal of them, refer to Step.

       2. Make sure that the two sealing rings (part of the leak check fixture) has no damage.

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

       4. Install the sealing rings in to the grooves in the packing seat A and the mandrel.

    3. Install the packing seat A and Mandrel Assembly in to the stub shaft.

       1. Move the assembly adjacent to splines of the stub shaft.

       2. Move the splines of the packing seat A with the splines of the stub shaft.

       3. Move the assembly forward until the packing seat A touches the stub shaft inner flange.

       4. Turn the assembly a half pitch of the spline to prevent axial movement of the assembly.

    4. Install the sealing ring on to the packing seat B (part of the leak check fixture).

       1. Make sure that the sealing ring, the handles B and the retainer are removed from the packing seat B. For the removal of them refer to Step.

       2. Make sure that the sealing ring has no damage.

       3. Lubricate the sealing ring with the approved engine oil.

       4. Install the sealing ring on the packing seat B.

    5. Install the two handles B (part of the leak check fixture) in to the threaded holes in the packing seat B. Tighten the handles B.

    6. Install the retainer (part of the leak check fixture) on to the packing seat B through the handles B.

    7. Install the packing seat B on to the hydraulic ring through the mandrel.

    8. Safety the retainer with the handle A (part of the leak check fixture).

       1. Put the washer on to the retainer through the mandrel.

       2. Install the handle A on to the threads on the mandrel. Hold the square rod end of the mandrel with a wrench and tighten the handle A with a second wrench.

24. SUBTASK 72-32-00-790-052 Do an Evacuation Check for the Front Bearing Compartment with the Leak Check Fixture in the Stub Shaft and the Hydraulic Ring

    1. Refer to Figure.

    2. Connect adapter (part of IAE 6F10030 Vacuum test cart 1 off) to joint on hot vent tube.

       NOTE

       Refer to manufacturers manual for operation of vacuum test cart.

    3. Operate the vacuum pump of the vacuum test cart.

    4. Set the air pressure at test port to -20 in. Hg gage (-508 mm Hg gage). Based on the ambient pressure, refer to the table below for the vacuum pressure in psia.

       Ambient Pressure of the Day (psia)	Vacuum Pressure (psia)
       14.7	4.9
       14.5	4.7
       14.3	4.5
       14.1	4.3
       13.9	4.1
       13.7	3.9
       13.5	3.7
       13.3	3.5
       13.1	3.3

       Vacuum pressure (psia) = Ambient pressure of the day (psia) - 9.8 psia

    5. Read the value of airflow indicated by flowmeter.

    6. If the indication is more than 13 PPH (5.89 Kg per hour), reject the module.

    7. Stop operation of vacuum pump.

25. SUBTASK 72-32-00-430-148 Remove the Packing Seats A and B and the Plug A of Leak Check Fixture

    1. Refer to Figure, Figure and Figure.

    2. Disconnect the adapter of the cart from the joint on the hot vent tube.

    3. Hold the square rod end of the mandrel with a wrench and turn the handle A to loosen it. Remove the handle A from the mandrel.

    4. Remove the washer from the retainer.

    5. Remove the retainer from the packing seat B.

    6. Remove the packing seat B and Retainer Assembly from the hydraulic ring.

    7. Remove the two handles B from the threaded holes in the packing seat B.

    8. Remove the sealing ring from the packing seat B.

    9. Remove the packing seat A and Mandrel Assembly from the stub shaft.

       1. Align the splines of the packing seat A with the splines of the stub shaft.

       2. Move the assembly rearwards to remove it from the stub shaft.

       3. Remove the two sealing rings from the groove in the packing seat A and the mandrel.

    10. Remove the three bolts and the plug A from the Fan Frame. Remove the sealing ring from the plug A.

    11. Install the IAE 1J12205 Oil tube cover 1 off to the oil feed adapter. Safety with the three bolts (part of the oil tube cover). Tighten the bolts by hand.

26. SUBTASK 72-32-00-430-325-A00 Remove the Plug E of the Leak Check Fixture from the Fan Frame (Pre SBE 72-0132)

    1. Refer to Figure.

    2. Remove the plug E from the drain hole in the Fan Frame.

27. SUBTASK 72-32-00-430-325-B00 Remove Packing Seat C of the Leak Check Fixture from the Fan Frame (SBE 72-0132)

    SBE 72-0132: Removal of Stage 6 Buffer Air System.

    1. Refer to Figure.

    2. Remove the eight bolts and the packing seat C from the Fan Frame.

    3. Remove the sealing ring from the packing seat C.

28. SUBTASK 72-32-00-430-149 Turn the Fan Frame and Fan Case Assembly to the the Rear End Up Position

    1. Refer to Figure.

    2. Release the Fan Case front flange from the Stopper Base and Stopper Assembly (part of the turnover stand).

       1. Loosen the two knobs (part of the turnover stand) to release the Fan Case front flange from the stopper.

       2. Loosen the set screw (part of the turnover stand) so that you can turn the adjuster (part of the turnover stand).

       3. Turn the adjuster counterclockwise to lower the stopper until it is clear of the Fan Case front flange.

       4. Remove the Stopper Base and Stopper Assembly from the turnover stand.

    3. Release the lock pin from the holes in the handle and the support C of the turnover stand.

    4. Turn the handle to set the Fan Frame and Fan Case Assembly vertical with the rear end up.

    5. Install the lock pin in to position to lock the handle.

       NOTE

       Make sure that the hole in the support C and one of eight holes in the handle are aligned. If necessary, turn the handle to make the two holes aligned.

29. SUBTASK 72-32-00-430-150 Install the Covers to the Tubes in the Struts

    1. Refer to Figure, Figure and Figure.

    2. Remove the three bolts and the joint (part of the leak check fixture) from the hot vent tube. Remove the sealing ring (part of the leak check fixture) from the joint.

    3. Remove the three bolts and the plug D (part of the leak check fixture) from the No. 1, 2, 3 Bearing Scavenge Tube. Remove the sealing ring (part of the leak check fixture) from the plug D.

    4. Remove the four bolts and the plug C (part of the leak check fixture) from the oil seal tube.

    5. Install IAE 1J12206 Scavenge tube cover 1 off on to the No. 1, 2, 3 Bearing Scavenge Tube. Safety with the three bolts (01-110). Tighten the bolts by hand.

    6. Install IAE 1J12207 Hot Vent tube cover 1 off on to the hot vent tube. Safety with the three bolts (01-130). Tighten the bolts by hand.

30. SUBTASK 72-32-00-430-151 Turn the Fan Frame and Fan Case Assembly to the No. 1 Strut Down Position

    1. Refer to Figure.

    2. Release the lock pin from the holes in the handle and the support C of the turnover stand.

    3. Turn the handle to set the Fan Frame and Fan Case Assembly horizontal with the No. 1 Strut down.

    4. Install the lock pin in to position to lock the handle.

       NOTE

       Make sure that the holes in the support C and one of eight holes in the handle are aligned. If necessary, turn the handle to make the two holes aligned.

    5. Install the Stopper Base and Stopper Assembly (part of the turnover stand) to hold the Fan Case front flange.

       1. Put the Stopper Base and Stopper Assembly on to the turnover stand.

       2. Turn the adjuster (part of the turnover stand) clockwise to lift the stopper until if fully engages with the Fan Case front flange.

       3. Tighten the set screw (part of the turnover stand) to safety the adjuster in position.

       4. Tighten the two knobs (part of the turnover stand) to safety the Fan Case front flange to the stopper.

31. SUBTASK 72-32-00-990-430-152 Measure the Module Interface Dimension for the Installation of the HP System Module

    1. Refer to Figure.

    2. Install IAE 1J12384 Swash check ring 1 off on the HPC Front Shaft And Seal Assembly.

       1. Make sure that the curvic teeth on the HPC Front Shaft and Seal Assembly and the swash check ring are clean. Clean the curvic teeth with a clean cloth made moist with CoMat 01-124 ISOPROPYL ALCOHOL if the curvic teeth are not clean.

       2. Engage the curvic teeth of the swash check ring with the curvic teeth of the HPC Front Shaft and Seal Assembly.

       3. Safety the swash ring with the 10 dummy bolts and nuts.

    3. Read the tool dimensions K and M identified on the swash check ring and IAE 1J12508 Measuring stretch 1 off.

    4. Install the measuring stretch on to the Fan Frame.

       1. Put the two blocks (part of the measuring stretch) on to the Fan Frame rear flange at 12 and 6 o'clock positions.

       2. Put the measuring stretch on to the blocks.

       3. Safety the measuring stretch with the two wing bolts, nuts and washers. Tighten the wing bolts.

    5. Measure the dimensions K1 at 12 and 6 o'clock positions with the depth micrometer. Push the swash check ring to set the position of the HPC Front Shaft and Seal Assembly fully forward while you measure the dimension K1.

       NOTE

       Axial clearance in the No. 3 Bearing causes axial movement of the HPC Front Shaft and Seal Assembly. The HPC Front Shaft and Seal Assembly must be put fully forward when the dimensions K1 are measured.

    6. Use the following formula to calculate the dimensions at the two positions:

       AC = K - M - K1.

    7. Make sure that the dimensions AC are between 1.1249 in. and 1.1350 in. (28.570 mm and 28.830 mm).

    8. Remove the measuring stretch from the Fan Frame rear flange.

       1. Remove the two nuts, wing bolts and washers.

       2. Remove the measuring stretch and blocks from the Fan Frame rear flange.

    9. Measure the dimensions K1 and make sure of the dimensions AC at 3 and 9 o'clock positions.

       1. Do Step. to install the blocks and the measuring stretch at 3 and 9 o'clock positions.

       2. Do Step to Step to measure the dimensions K1 and make sure of the dimensions AC at 3 and 9 o'clock positions.

    10. Remove the 10 dummy bolts and nuts which attach the swash check ring o the HPC Front Shaft and Seal Assembly. Remove the swash check ring.

32. SUBTASK 72-32-00-430-153 Assemble the Front Bearing Compartment Rear Air Seal Assembly (Seal Assembly) and Install the Retaining Ring in to the Seal Assembly

    1. Refer to Figure.

    2. Put the Rear Brush Seal Holder ENGINE-BEARING COMPARTMENT REAR AIR SEAL (72-32-35, 01-220) of the Seal Assembly on a work bench with the front end up.

    3. Install the brush seal ENGINE-BEARING COMPARTMENT REAR AIR SEAL (72-32-35, 01-160) of the Seal Assembly in to the seal holder.

       1. Align the two locating pins on the brush seal with the two locating holes in the rear flange of the rear seal holder.

       2. Put the brush seal in to position in the rear brush seal holder.

    4. Install the retaining ring ENGINE-BEARING COMPARTMENT REAR AIR SEAL (72-32-35, 01-090) in to the grove in the rear brush seal holder.

33. SUBTASK 72-32-00-430-154 Install the Seal Assembly on to the Fan Frame

    1. Refer to Figure.

    2. Install the Seal Assembly on to the Fan Frame.

       1. Align the 18 holes in the front flange of the rear brush seal holder with the 18 threaded holes in the Fan Frame.

       2. Attach the front flange of the rear brush seal holder to the Fan Frame and safety with the 18 bolts (02-400). Torque the bolts to between 85 lbfin and 105 lbfin (10.00 Nm and 12.00 Nm).

34. SUBTASK 72-32-00-430-155 Install the PTO Shaft in to the Oil Seal Tube

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

    2. Lubricate the outer faces and spline teeth on the PTO Shaft ENGINE-PTO SHAFT (72-32-95, 01-100) with CoMat 10-077 APPROVED ENGINE OILS.

    3. Move the PTO Shaft above the oil seal tube. Align the PTO Shaft with the oil seal tube.

       NOTE

       The PTO shaft has spline teeth at two ends of the shaft. The end, which has 24 spline teeth, must be installed in to the oil seal tube. The end, which has 28 spline teeth, must be out of the oil seal tube.

    4. Slowly lower the PTO Shaft in to the oil seal tube until the PTO Shaft touches the sealing ring in the bevel gear shaft.

       NOTE

       The PTO Shaft moves lightly before it touches the sealing ring. When the PTO Shaft touches the sealing ring, the movement of the PTO Shaft becomes hard.

    5. Install IAE 1J12023 Hooking puller 1 off on to the PTO Shaft and the Oil Seal Tube.

       1. Attach the screw rod (part of the hooking puller) to the PTO Shaft and safety with the two segments of jaw and the sleeve.

       2. Install the guide and adapter assembly (part of the hooking puller) on to the oil seal tube through the screw rod. Safety the guide with the four bolts (part of the hooking puller). Tighten the bolts.

       3. Lubricate the threads on the screw rod with the approved engine oil.

       4. Install the nut (part of the hooking puller) on to the screw and turn the nut clockwise to move it adjacent to the adapter.

       5. Align the two lugs on the nut with the two slots in the adapter.

       6. Turn the screw rod counterclockwise to lower the nut until it touches the adapter.

       7. Turn the nut clockwise to engage the two lugs with the two slots.

    6. Turn the screw rod clockwise with a wrench to lower the PTO Shaft and engage the splines of the PTO Shaft with the splines of the bevel gear shaft.

       NOTE

       Slowly turn the HPC Front Shaft and Seal Assembly clockwise as necessary to align the splines of the bevel gear shaft with the splines of the PTO Shaft.

    7. Turn the screw rod clockwise until the splines of the PTO Shaft fully engages with the splines of the bevel gear shaft.

    8. Remove the hooking puller from the PTO Shaft and the oil seal tube.

       1. Turn the nut counterclockwise to disengage the two lugs from the two slots.

       2. Turn the screw rod clockwise to lift the nut until it is clear of the adapter.

       3. Turn the nut counterclockwise to remove it from the screw rod.

       4. Remove the bolts which attach the guide to the oil seal tube. Remove the guide and the adapter assembly from the oil seal tube.

       5. Remove the sleeve, the segments of the jaw which attach the screw rod to the PTO Shaft. Remove the screw rod.

    9. Make sure that the PTO Shaft is correctly installed.

       1. Make sure that the PTO Shaft outer end is not more than 1.310 in. (33.1 mm) above the oil seal tube flange, Figure. If the PTO Shaft outer end is more than 1.310 in. (33.1 mm) above the oil seal tube flange, install the hooking puller and lower the PTO Shaft.

    10. Install the four bolts (01-160) which attach the oil seal tube to the Fan Case. Torque the bolts to between 85 lbfin and 105 lbfin (10.00 Nm and 12.00 Nm).

35. SUBTASK 72-32-00-430-156 Install Holding Cap on to the Oil Seal Tube to Hold the PTO Shaft

    1. Refer to Figure.

    2. Remove two of the four bolts (01-160) to replace them with the two bolts of the holing cap. Refer to Figure for the positions of the bolts to be replaced.

    3. Turn the cap screw (part of IAE 1J12082 Holding cap 1 off) counterclockwise fully to move it out of the cap.

    4. Align the four boltholes in the cap (part of the holding cap) with the two bolts and the two holes in the oil seal tube.

    5. Attach the cap to the oil seal tube and safety with the two washers, spring washers and bolts (part of the holding cap). Tighten the bolts.

    6. Turn the cap screw clockwise until the sheet touches the PTO Shaft.

    7. Safety the cap screw with CoMat 02-147 LOCKWIRE. Refer to the SPM TASK 70-42-05-400-501.

    8. Install the two nuts (part of the holding cap) on to the two bolts (01-160) which are removed in Step. Install the bolts in to the threaded holes in the cap and tighten the nuts.

       NOTE

       The holding cap is removed from the oil seal. The two bolts (01-160) are moved from the cap to the oil seal tube in TASKS which install the external Gearbox to the Fan Case.

36. SUBTASK 72-32-00-430-326 Install the Name Plate, the Engine Identification Plate and the Module Identification Plate to the Fan Case

    1. Refer to Figure.

    2. Install the engine identification plate ENGINE-FAN CASE (72-32-85, 03-120) to the name plate bracket ENGINE-FAN CASE (72-32-85, 03-150) with the four bolts ENGINE-FAN CASE (72-32-85, 03-130).

    3. Install the module identification plate ENGINE-FAN CASE (72-32-85, 03-100) to the name plate bracket with the two bolts ENGINE-FAN CASE (72-32-85, 03-110).

    4. Torque the bolts to 36 lbfin to 45 lbfin (4.00 Nm to 5.00 Nm).

    5. Install the name plate bracket to the flange FE of the Fan Case with the two bolts ENGINE-FAN CASE (72-32-85, 03-165).

    6. Torque the bolts to 85 lbfin to 105 lbfin (10.00 Nm to 12.00 Nm).

Figure: Release the Lock Pin to Turn the Fan Frame from Horizontal to Vertical

Release the Lock Pin to Turn the Fan Frame from Horizontal to Vertical



Figure: Install the Rear Sling on to the Fan Frame

Install the Rear Sling on to the Fan Frame



Figure: Remove the Fan Frame from the Turnover Stand

Remove the Fan Frame from the Turnover Stand



Figure: Install the Fan Frame in to the Fan Case

Install the Fan Frame in to the Fan Case



Figure: SBE 72-0435: Position of the Bolts to Attach the Fan Frame to the Fan Case

SBE 72-0435: Position of the Bolts to Attach the Fan Frame to the Fan Case



Figure: Install the Fan Frame and Fan Case Assembly to the Turnover Stand

Sheet 1



Legend

Install the Fan Frame and Fan Case Assembly to the Turnover Stand

Sheet 1

Close

Figure: Install the Fan Frame and Fan Case Assembly to the Turnover Stand

Sheet 2



Legend

Install the Fan Frame and Fan Case Assembly to the Turnover Stand

Sheet 2

Close

Figure: Install the Lock Pin in to Position to Lock the Handle of the Turnover Stand

Install the Lock Pin in to Position to Lock the Handle of the Turnover Stand



Figure: V2500-A1: Install the Oil Seal Tube in to the No. 6 Strut of the Fan Frame

V2500-A1: Install the Oil Seal Tube in to the No. 6 Strut of the Fan Frame



Figure: Install the Scavenge Tube and the Hot Vent Tube in to the No. 6 and No. 3 Struts

Install the Scavenge Tube and the Hot Vent Tube in to the No. 6 and No. 3 Struts



Figure: Install the Leak Check Fixture to the Tubes and the Stub Shaft

Sheet 1



Legend

Install the Leak Check Fixture to the Tubes and the Stub Shaft

Sheet 1

Close

Figure: Install the Leak Check Fixture to the Tubes and the Stub Shaft

Sheet 2



Legend

Install the Leak Check Fixture to the Tubes and the Stub Shaft

Sheet 2

Close

Figure: Pre SBE 72-0132: Install the Leak Check Fixture to the Fan Frame

Sheet 1



Legend

Pre SBE 72-0132: Install the Leak Check Fixture to the Fan Frame

Sheet 1

Close

Figure: SBE 72-0132: Install the Leak Check Fixture to the Fan Frame

Sheet 2



Legend

SBE 72-0132: Install the Leak Check Fixture to the Fan Frame

Sheet 2

Close

Figure: Install the Lock Pin in to Position to Lock the Handle and Hold the Fan Case Front Flange with the Stopper

Install the Lock Pin in to Position to Lock the Handle and Hold the Fan Case Front Flange with the Stopper



Figure: Remove the Oil Tube Cover from the Oil Feed Adapter

Remove the Oil Tube Cover from the Oil Feed Adapter



Figure: Connect the Fitting of the Vacuum Test Cart to the Joint

Connect the Fitting of the Vacuum Test Cart to the Joint



Figure: Install the Covers on to the Scavenge Tube and the Hot Vent Tube

Install the Covers on to the Scavenge Tube and the Hot Vent Tube



Figure: Measure the Module Interface Dimensions for the Installation of the HP System Module

Measure the Module Interface Dimensions for the Installation of the HP System Module



Figure: Install the Front Bearing Compartment Rear Air Seal Assembly (the Rear Brush Seal Holder and the Brush Seal) to the Fan Frame

Install the Front Bearing Compartment Rear Air Seal Assembly (the Rear Brush Seal Holder and the Brush Seal) to the Fan Frame



Figure: Install the PTO Shaft in to the Oil Seal Tube

Install the PTO Shaft in to the Oil Seal Tube



Figure: Engage the Splines of the PTO Shaft with the Spline of the Bevel Gear Shaft

Engage the Splines of the PTO Shaft with the Spline of the Bevel Gear Shaft



Figure: Use the Hooking Puller to Engage the Spline of the PTO Shaft with the Spline of the Bevel Gear Shaft

Use the Hooking Puller to Engage the Spline of the PTO Shaft with the Spline of the Bevel Gear Shaft



Figure: Install the Holding Cap on to the PTO Shaft to Hold the PTO Shaft

Install the Holding Cap on to the PTO Shaft to Hold the PTO Shaft



Figure: Install the name Plate Bracket, the Engine Identification Plate and the Module Identification plate to the Fan Case

Install the name Plate Bracket, the Engine Identification Plate and the Module Identification plate to the Fan Case



Figure: View of the Center Bearing Housing Assembly

View of the Center Bearing Housing Assembly



Figure: Use the Installation Pusher to Install the Outer Roller Bearing in to the Center Bearing Housing

Use the Installation Pusher to Install the Outer Roller Bearing in to the Center Bearing Housing



Figure: Install the Center Bearing Housing Assembly, the Adjusting Washer and the PTO Sealing Plate to the No.6 Strut

Install the Center Bearing Housing Assembly, the Adjusting Washer and the PTO Sealing Plate to the No.6 Strut



Figure: Measure the Gap X between the Center Bearing Housing and the PTO Sealing Plate

Measure the Gap X between the Center Bearing Housing and the PTO Sealing Plate



Figure: Center Bearing Adjusting Washer Thickness

Center Bearing Adjusting Washer Thickness



Figure: Attach the Handling Holder to the Center Bearing Housing Assembly

Attach the Handling Holder to the Center Bearing Housing Assembly



Figure: The Center Bearing Housing and the Outer Roller Bearing Fits and Clearances

The Center Bearing Housing and the Outer Roller Bearing Fits and Clearances