Preliminary Requirements

Procedure

1. SUBTASK 72-00-40-560-074-A00 V2500-A1 Install the Remove/Install Fixture and the Tie-Rod Adapter on to the Rear of the HP System Module

   1. Refer to Figure.

   2. Attach IAE 1P16057 Tie-rod adapter 1 off or IAE 1P16285 Tie-rod adapter 1 off, on to the center ring (Part of IAE 1P16046 Removal/Installation fixture or IAE 1P16543 Removal/Installation fixture 1 off).

      1. Put the puck and shaft through the center ring, until the tie rod adapter touches the rear face of the center ring.

      2. Align the two holes on the tie rod adapter with two opposite holes in the center ring. Install the two tool screws. Tighten the screws.

      3. Move the locknut until it is adjacent to the wrench location.

      4. Push the tie rod adapter in to the engine until the puck engages on the HP compressor front shoulder. At the same time push the center ring over the HP compressor shaft until it touches the stage 2 HP turbine disk.

      5. NOTE

         If necessary, use a wrench on the wrench location, so that the shaft does not turn.

         Turn the lock nut until the puck is against the HP compressor front shoulder. Tighten the lock nut.

      6. Attach a hoist to the IAE 1F10052 Two cables sling 1 off and attach the lift sling to the remove/install fixture lift eye.

      7. Lift the remove/install fixture and move it adjacent to the rear of the HP system module. Make sure the hand knobs are rearwards.

      8. Move the remove/install fixture over the center ring until it touches the HP turbine case rear flange.

      9. Put the upper split ring on to the front of the HP turbine case rear flange. Install 12 of the tool bolts and 12 of the tool nuts.

      10. Put the lower split ring on to the front of the HP turbine case rear flange. Install 13 of the tool bolts and 13 of the tool nuts.

      11. Tighten the 25 tool nuts.

      12. Remove the hoist from the lift eye.

2. SUBTASK 72-00-40-560-074-B00 V2500-A5 Install the Remove/Install Fixture and the Tie-Rod Adapter on to the Rear of the HP System Module

   1. Refer to Figure.

   2. Attach IAE 1P16285 Tie-rod adapter 1 off, on to the center ring (Part of IAE 1P16046 Removal/Installation fixture or IAE 1P16543 Removal/Installation fixture 1 off.

      1. Put the puck and shaft through the center ring, until the tie rod adapter touches the rear face of the center ring.

      2. Align the two holes on the tie rod adapter with two opposite holes in the center ring. Install the two tool screws. Tighten the screws.

      3. Move the locknut until it is adjacent to the wrench location.

      4. Push the tie rod adapter in to the engine until the puck engages on the HP compressor front shoulder. At the same time push the center ring over the HP compressor shaft until it touches the stage 2 HP turbine disk.

      5. NOTE

         If necessary, use a wrench on the wrench location, so that the shaft does not turn.

         Turn the lock nut until the puck is against the HP compressor front shoulder. Tighten the lock nut.

      6. Attach a hoist to the IAE 1F10052 Two cables sling 1 off and attach the lift sling to the remove/install fixture lift eye.

      7. Lift the remove/install fixture and move it adjacent to the rear of the HP system module. Make sure the hand knobs are rearwards.

      8. Move the remove/install fixture over the center ring until it touches the HP turbine case rear flange.

      9. Put the upper split ring on to the front of the HP turbine case rear flange. Install 12 of the tool bolts and 12 of the tool nuts.

      10. Put the lower split ring on to the front of the HP turbine case rear flange. Install 13 of the tool bolts and 13 of the tool nuts.

      11. Tighten the 25 tool nuts.

      12. Remove the hoist from the lift eye.

3. SUBTASK 72-00-40-560-075 Attach the Trunnions and Lift Sling to the LP Compressor/Intermediate Case Module

   1. Refer to Figure.

   2. Attach IAE 1J12008 Trunnion 2 off, to IAE 1J12000 Lift bracket 2 off. Secure with the eight trunnion bolts and the eight trunnion washers.

   3. Attach the trunnion/lift bracket assemblies on to the LP compressor/intermediate case module, between flange FE and FD. Secure with the four tool bolts and nuts.

   4. Attach IAE 1F10051 Two cable sling 1 off, to the trunnions on the module.

      1. Attach a hoist to the lift eye on the lift sling.

      2. Lift the sling.

      3. Lower the lift sling to permit the hook and bolt plate to be attached to the trunnions on the LP compressor/intermediate case module.

      4. Attach the hook and bolt plates to the outer trunnions.

4. SUBTASK 72-00-40-560-076 Lift and Turn the LP Compressor/Intermediate Case Assembly and HP System Module in to the Horizontal Position

   1. Refer to Figure.

   2. Remove the eight tool nuts, the eight tool bolts and the eight tool washers which attach the LP compressor/intermediate case module front flange to the working stands, IAE 1J12210 Vertical build stand.

   3. Use the rear hoist to lift the modules from the working stands.

   4. Remove the four working stands from below the LP compressor/intermediate case module.

   5. Use the front hoist to turn the modules into the horizontal position.

   6. Install the LP compressor/intermediate case module and HP system module on to the support posts and cradle pedestal.

      1. Make sure that the trunnion supports, (Part of IAE 1F10028 Support Pedestal 2 off) are at their lowest position.

      2. Make sure the support bracket (Part of IAE 1P16002 Cradle pedestal 1 off), is at its lowest position.

      3. NOTE

         Make sure there is sufficient clearance between the LP compressor/intermediate case module and HP system module and the ground, to permit the external gearbox to be installed.

         Adjust the height of the LP compressor/intermediate case module and HP system module to permit the support posts and the cradle pedestal to be installed.

      4. Put the support posts adjacent to the trunnion assemblies with the trunnion supports below the trunnions.

      5. Move the trunnion supports up the support posts until they touch the trunnions.

      6. Look at the holes in the trunnion supports and the support posts to see if they are aligned.

      7. If necessary adjust the height of the modules to make the holes align.

      8. Install the retaining pins through the holes of the support bracket and the post.

      9. Put the cradle pedestal under the HP system module, with the support assembly slightly forward of the diffuser case rear flange. Make sure that the large face of the support assembly points forward.

      10. Turn the adjustment handle on the cradle pedestal until the support assembly touches the diffuser case.

      11. Lower the lift slings, to allow the support posts and cradle pedestal to take the weight of the modules. This will permit the lift sling, hook and bolt plates, to be removed.

      12. Make sure the engine horizontal center line is level. If necessary, use the cradle pedestal to level the engine.

      13. Remove the hook and bolt plates from the front trunnions.

      14. Put the wide lift sling on to a suitable work surface.

      15. Remove the lift sling from the hoist.

5. SUBTASK 72-00-40-560-077 Remove the Remove/Install Fixture and the Tie-Rod Adapter from the Rear of the Module

   1. Refer to Figure.

   2. Adjust the height of the hoist to hold the weight of the remove/install fixture.

   3. Remove the 25 nuts and the 25 bolts which safety the remove/install fixture to the HP turbine case. Remove the two split rings.

   4. Release the locknut on the end of the tie rod shaft.

   5. Remove the two screws that safety the tie rod adapter on to the remove/install fixture.

   6. Move the shaft in to the engine to disengage the puck from the HP compressor shaft front shoulder.

   7. Remove the tie rod adapter from the module.

   8. Remove the remove/install fixture from the module and put it on to a suitable work surface. Remove the hoist and the lift sling.

Figure: Install the remove/install fixture and the tie rod adapter on to the HP system module rear flange

Install the remove/install fixture and the tie rod adapter on to the HP system module rear flange



Figure: Install the remove/install fixture and the tie rod adapter on to the HP system module rear flange

Install the remove/install fixture and the tie rod adapter on to the HP system module rear flange



Figure: Install the trunnions to the LP compressor/intermediate case module

Install the trunnions to the LP compressor/intermediate case module



Figure: Remove the LP compressor/intermediate case module and HP system module from the working stand

Remove the LP compressor/intermediate case module and HP system module from the working stand



Figure: Remove the LP compressor/intermediate case module and HP system module from the working stand

Remove the LP compressor/intermediate case module and HP system module from the working stand



Figure: Install the LP compressor/intermediate case module and HP system module on to the support posts and cradle pedestal

Install the LP compressor/intermediate case module and HP system module on to the support posts and cradle pedestal



Figure: Remove the remove/install fixture and tie rod adapter from the HP system module rear flange

Remove the remove/install fixture and tie rod adapter from the HP system module rear flange



Figure: Remove the remove/install fixture and tie rod adapter from the HP system module rear flange

Remove the remove/install fixture and tie rod adapter from the HP system module rear flange