Preliminary Requirements

Procedure

1. SUBTASK 72-32-80-440-095 Identify the LP Compressor Booster Stage Assembly (Sub-Module)

   1. Refer to Figure.

   2. NOTE

      The sub-module number follows the letter "SUB-MODULE". The serial number is adjacent to the sub-module number.

      Find the sub-module number and serial number written on the shaft surface of the LPC stage 1.5, 2 and 2.5 disc assembly.

   3. Make sure that the assembly (sub-module) is correctly identified with the sub-module number and serial number and is correct for the build procedures.

   4. If the sub-module number and serial number are not written, write them on the specified area on the LP compressor booster stage assembly.

      1. Write the sub-module number and serial number on the specified area with electrochemical etching. Refer to the SPM TASK 70-09-00-400-501 for mark procedure.

         1. Write letters SUB MODULE and the sub-module number. The sub-module number must follow letters SUB MODULE.

         2. Write the serial number adjacent to the sub-module number mark.

2. SUBTASK 72-32-80-440-070 Preparation for the Installation of the LP Compressor Booster Stage Disk Assembly (72-32-81,02-200) on to the Balance Arbor

   1. Refer to Figure.

   2. Move IAE 1J12410 Transport stand 1 off, IAE 1J12535 Balance adapter 1 off, IAE 1J12532 Balance fixture 1 off and IAE 1J12399 Handling sling 1 off to the work area.

   3. Increase the temperature of the two ball bearings and the inner races of the two roller bearings in the oven. Set the temperature of the oven approximately 250 deg F (120 deg C) and keep the bearings for 20 minutes.

   4. Remove the two ball bearings and the inner races of the roller bearings from the oven. Install them on to the balance arbor.

      1. Install one of the ball bearings on to the long shaft end.

      2. Install the spacer of the balance arbor on to the ball bearing.

      3. Install the other ball bearing on to the spacer. Install the stopper of the balance arbor on to the bearing.

      4. Safety them with the six screws of the balance arbor.

      5. Install one of the roller bearing inner races on to the short shaft end.

      6. Install the spacer of the balance arbor on to the roller bearing inner race.

      7. Install the other roller bearing inner race on to the spacer.

      8. Install the stopper of the balance arbor on to the bearing.

      9. Safety them with the six screws (part of the balance arbor).

   5. Install the handling sling on to the short shaft end of the balance arbor and safety with the six bolts of the sling. Tighten the six bolts.

   6. Attach a hoist to the sling and lift and move the arbor to the balance fixture and transport stand. Slowly lower the arbor and put it on the balance fixture.

   7. Remove the hoist, the six bolts and the handling sling.

3. SUBTASK 72-32-80-440-071 Install the LP Compressor Booster Stage Disk on the Balance Arbor

   1. Refer to Figure and Figure.

   2. Move IAE 1J12213 LPC Vertical sling 1 off and IAE 1J12505 0AM53 heater 1 off to the work area.

   3. Install the bracket (part of the LPC vertical sling) on to the LP compressor booster stage disk with the six bolts of the bracket. Tighten the bolts. Install the sling (part of the LPC vertical sling) on to the bracket.

   4. Attach a hoist to the vertical sling and lift and move the disk on to the IAE 1J12554 Storage stand 1 off.

   5. Remove the sling from the bracket. Put the heater on to the bracket.

   6. Turn on the switch of the heater and increase the temperature of the bore in the front flange of the LP compressor booster stage disk to 250 deg F (120 deg C).

   7. Remove the heater and install the sling on to the bracket again.

   8. Install the three guide pins (part of IAE 1J12507 Guide pin 1 off) in to the three threaded holes in the flange of the balance arbor.

   9. Attach a hoist to the vertical sling again and move the disk on to the balance arbor.

   10. NOTE

       Make sure you align the correlation mark on the disk with that of the arbor.

       NOTE

       Align the three pins on the balance arbor with the pin holes in the front flange of the disk.

       Remove the vertical sling from the disk.

   11. Install immediately on to the balance arbor.

   12. Safety the disk to the balance arbor with the eight dummy bolts.

       1. Install the first bolt in to one of the eight holes. Turn it until the mating face of the bolt head touches the disk flange face.

       2. Install the second bolt in to the hole approximately 180 degrees apart from the first bolt. Turn it until the mating face of the bolt head touches the disk flange face.

       3. Install the third bolt in to the hole approximately 90 degrees apart from the first bolt. Turn it until the mating face of the bolt head touches the disk flange face.

       4. Install the fourth bolt in to the hole approximately 270 degrees apart from the first bolt. Turn it until the mating face of the bolt head touches the disk flange face.

       5. Use the other four bolts of the eight bolts, install and turn them in the same sequence as the procedure in the steps (1) through (4) but start from 45 degrees from the first bolt.

       6. Torque the four bolts which have been installed in the previous steps to 210 lbfin (24 Nm) in the same sequence as step (1) through (4).

       7. Remove the three aligning pins from the balance arbor.

       8. Install the other four bolts and torque them diagonally to 210 lbfin (24 Nm) after the disk is cool.

4. SUBTASK 72-32-80-440-072 Turn the LPC Disk and Balance Arbor Assembly from Vertical to the Horizontal

   NOTE

   If you use IAE 1J13206 Horizontal work stand to install the stage 2.3 blades to the disk, do this step.

   1. Refer to Figure.

   2. Move the handling sling and the IAE 1J13206 Horizontal work stand 1 off to the work area.

   3. Install the handling sling on to the top end of the balance arbor and safety the sling with the six bolts of the sling.

   4. Attach a hoist to the sling and lift slowly until the balance arbor is clear of the transport stand.

   5. Attach another handling sling on to the bottom end of the balance arbor and safety it with the six bolts of the sling.

   6. Attach another hoist to the bottom sling and lift the hoist until the arbor axis becomes horizontal.

   7. Put the disk and balance arbor assembly on the horizontal work stand.

5. SUBTASK 72-32-80-440-097 Put the LPC Disk and Balance Arbor Assembly on to the Storage Stand (L)

   NOTE

   If you use IAE 1J12533 Storage stand to install the stage 2.3 blades to the disk, do this step.

   1. Refer to Figure.

   2. Move the IAE 1J12399 Handling sling and the IAE 1J12533 Storage stand 1 off to the work area.

   3. Install the IAE 1J12399 Handling sling on to the top end of the balance arbor and safety the sling with the six bolts of the sling.

   4. Attach a hoist to the sling and lift slowly until the balance arbor is clear of the transport stand.

   5. Attach another IAE 1J12399 Handling sling on to the bottom end of the balance arbor and safety it with the six bolts of the sling.

   6. Attach another hoist to the bottom sling and lift the hoist and turn over the LPC disk and balance arbor assembly with the rear end up.

   7. Remove the sling from the front end of the balance arbor.

   8. Install the adapter (part of the storage stand (L)) on to the storage stand (L). Safety the adapter with the 12 screws.

   9. Slowly lower and put the LPC disk and balance arbor assembly on to the storage stand (L).

   10. Remove the sling from the rear end of the disk.

6. SUBTASK 72-32-80-440-073 Weigh the Stage 1.5 Blades (72-32-82, 02-400), the Stage 2 Blades (72-32-82, 02-250), the Stage 2.3 Blades (72-32-83, 02-550) and the Stage 2.5 Blades (72-32-82, 02-100)

   1. Refer to Figure.

   2. Weigh each blade of the LP compressor stage 1.5, 2, 2.3 and 2.5 in turn and keep the record of the weight and blade identification code.

   3. NOTE

      If computer calculated assembly sequence is available, it is better than the heavy-light-heavy sequence.

      Write the weight and the identification code on the blade convex airfoil surface with CoMat 06-069 MARKER.

   4. Put each of the stage blades on a work bench in a heavy-light-heavy sequence.

7. SUBTASK 72-32-80-440-074 Install the Stage 2.3 Blades to the Disc

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

   2. Install the stage 2.3 blades to the disc in the sequence given in Step. Start from the No. 1 blade slot and install the blades in a counterclockwise direction when you look from the rear. The identification number of the No. 1 slot is on the top of the disc tang.

   3. Move forward all the blades as much as half the thickness of the disc rim.

   4. Install the eight stage 2.3 retaining plates V2500-A5-72-32-80-03A-941A-D (72-32-80, 03-265) between the two grooves on the stage 2.3 blades and disc.

      1. Move rearward the blade at the No. 1 blade position and align the groove of the blade with the groove of the disc.

      2. Install the No. 1, stage 2.3 retaining plate into the two grooves of the No. 1 blade and the disc.

      3. Align the groove of the next blade center clockwise with the groove of the disc.

      4. Move the plate center clockwise into the two grooves of the No. 2 blade and the disc.

      5. Do the steps (3) and (4) for the remaining blades until the plate is fully into the grooves of the blades and disc.

      6. Do the same Step, Step andStep for the installation of the No. 2 through No. 8 stage 2.3 retaining plate into the grooves of the blades and disc.

   5. Install the new V2500-A5-72-32-80-03A-941A-D (72-32-80, 03-260) stage 2.3 lock plate in to the grooves of the blades and disc.

      1. Make space between any two adjacent stage 2.3 retaining plates.

      2. Install the first stage 2.3 lock plate in to the disc groove at the space between two retaining plates temporarily.

      3. Close the two adjacent stage 2.3 retaining plates to the lock plate.

      4. Safety the lock plate to the adjacent retaining plates.

   6. Install the new V2500-A5-72-32-80-03A-941A-D (72-32-80, 03-260) stage 2.3 lock plate in to the grooves of the blades and the disc. The lock plate is between two retaining plates and 180 degrees apart from the first lock plate.

   7. Measure the clearance between two retaining plates after collecting all the circular clearance.

      1. The collected clearance must not be more than 0.059 in. (1.499 mm) in condition that the plates are pushed outward.

      2. If it is necessary to remove metal from a lock plate to get the correct plate clearance do the steps that follow:

         1. Remove the lock plate.

         2. Measure the clearance between two retaining plates (Dimension X) with a caliper.

         3. Remove metal from the lock plate in parallel with surface G with a file to get the specified clearance. Refer to Figure.

         4. Install the lock plate in position. The lock plate must be in line with a blade root.

   8. 
      CAUTION
      OBEY THE FOLLOWING PROCEDURE WITH IAE 1J13100 Tab bender 1 OFF FOR BENDING THE LOCK PLATE TABS. IF YOU DO NOT OBEY IT, THE LOCK PLATES AND THE BLADES CAN COME OFF DURING FLIGHT. IT CAN CAUSE DAMAGE TO THE LP COMPRESSOR BOOSTER STAGE ASSEMBLY.

      Bend the tabs on the two lock plates.

      1. Push the blade forward and put the lock plate into the disc groove.

      2. Push the blade rearward and lift the lock plate to engage with the blade groove.

      3. Put the tab into the pocket of IAE 1J13100 Tab bender 1 off correctly and make sure that the surface R of the tab bender touches the rim of the LPC disc.

      4. Carefully lift the tab bender so that the tab is bent by the fulcrum in pre-bent point.

      5. Remove the tab bender vertically to the lock plate after the surface D of the tab bender touches the lock plate.

      6. Make sure that the tab is correctly bent, Figure, inset 5.

      7. Do the Step thru Step for bending the remaining tab on the lock plate.

      8. Do the Step thru Step for bending the two tabs on the remaining lock plate.

      9. Check the blades can swing slightly by shaking airfoil tip.

   9. Examine the bent portion with a 10X magnifier and make sure there are no cracks.

   10. 

       CAUTION

       MAKE SURE THE RETAINING PLATES AND LOCK PLATES ARE INSTALLED INTO THE GROOVES OF THE BLADES. IF THEY ARE NOT INSTALLED PROPERLY, BLADES CAN COME OFF DURING FLIGHT. IT CAN CAUSE DAMAGE TO THE LP COMPRESSOR BOOSTER STAGE ASSEMBLY.

       Check the blades and make sure that the retaining plates and lock plates are properly installed into the grooves of the blades.

8. SUBTASK 72-32-80-440-075 Install the Brackets on to the Disk

   1. Refer to Figure.

   2. Install IAE 1J12542 Long support 1 off to the disk.

      1. Put the four brackets (part of the long support) in to the pocket of the inside diameter of the stage 1.5 front air seal.

   3. Tighten the eight wing nuts on the brackets by hand.

9. SUBTASK 72-32-80-440-076 Put the LPC Disk and Balance Arbor Assembly on to the Storage Stand (L)

   NOTE

   If the LPC disk and balance arbor assembly is already put on to the IAE 1J12533 Storage stand, this step is not necessary.

   1. Refer to Figure and Figure.

   2. Install the handling sling set on to both ends of the balance arbor. Safety with the bolts (part of the handling sling set).

   3. Attach two hoists to the two slings and lift slowly until the balance arbor is clear of the horizontal work stand.

   4. Turn the LPC disk and balance arbor assembly from horizontal to vertical with the rear end up.

   5. Remove the sling from the front end of the balance arbor.

   6. Remove the four blocks (part of IAE 1J12533 Storage stand 1 off) from the storage stand (L).

   7. Install the adapter (part of the storage stand (L)) on to the storage stand (L). Safety the adapter with the 12 screws.

   8. Slowly lower and put the LPC disk and balance arbor assembly on to the storage stand (L).

   9. Remove the sling from the rear end of the disk.

10. SUBTASK 72-32-80-440-077 Install the Stage 2.3 LP Compressor Vane Assembly (72-32-83, 02-250) in to the LP Compressor Rear Case Assembly (72-32-83, 02-900)

    1. Refer to Figure.

    2. Put the LP compressor rear case assembly on to the work bench with the front end down.

    3. Apply the joint compound on to the mating faces of the stage 2.3 vane assembly and the LP compressor rear case assembly.

       1. Clean the mating faces of the stage 2.3 vane assembly and the LP compressor rear case assembly with CoMat 01-124 ISOPROPYL ALCOHOL.

       2. Apply CoMat 04-004 JOINTING COMPOUND, LIGHT GRADE on to the mating faces of the stage 2.3 vane assembly and the LP compressor rear case assembly.

    4. Attach the stage 2.3 LP compressor vane assembly on to the LP compressor rear case.

    5. Install the 62 countersunk head screws V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-254), washers V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-252) and nuts V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-251) through the conical holes of the stage 2.3 vane assembly. Torque the nuts to 36 to 45 lbfin (4.00 to 5.00 Nm).

11. SUBTASK 72-32-80-440-078 Install the Stage 2.3 Vane and the Rear Case Assembly on to the Disk

    1. Refer to Figure and Figure.

    2. 

       CAUTION

       DO NOT HIT THE DISK KNIFE EDGE SEALS WITH THE VANES. THIS CAN CAUSE DAMAGE TO THOSE PARTS.

       Install the stage 2.3 vane and rear case assembly on to the flange of the brackets. Safety with the eight bolts and nuts (part of the brackets).

12. SUBTASK 72-32-80-440-079 Install the Stage 2.5 Blades to the Disc and Safety with the Retaining Plates

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

    2. Install the stage 2.5 blades to the disc in the sequence given in the Step. Start from the No. 1 blade slot and install the blades in the counterclockwise direction when you look from the rear. The identification number of the No. 1 slot is on the top of the disc tang.

    3. Move forward all the blades as much as half the thickness of the disc rim.

    4. Install the eight stage 2.5 retaining plates V2500-A5-72-32-80-03A-941A-D (72-32-80,03-250) between the two grooves on the stage 2.5 blades and disc.

       1. Move rearward the blade at the No. 1 blade position and align the groove of the blade with the groove of the disc.

       2. Install the No. 1, stage 2.5 retaining plate into the two grooves of the No. 1 blade and the disc.

       3. Align the groove of the next blade center clockwise with the groove of the disc.

       4. Move the plate center clockwise into the two grooves of the No. 2 blade and the disc.

       5. Do Step and Step again for the remaining blades until the plate is fully into the grooves of the blades and disc.

       6. Do Step, Step and Step for the installation of the No. 2 through No. 8 stage 2.5 retaining plate into the grooves of the blades and disc.

    5. Install the new V2500-A5-72-32-80-03A-941A-D (72-32-80, 03-240) stage 2.5 lock plates in to the grooves of the blades and disc.

       1. Make space between any two adjacent stage 2.5 retaining plates.

       2. Install the first stage 2.5 lock plate in to the disc groove at the space between two retaining plates temporarily.

       3. Close the two adjacent stage 2.5 retaining plates to the lock plate.

       4. Safety the lock plate to the adjacent retaining plates.

    6. Install the new V2500-A5-72-32-80-03A-941A-D (72-32-80, 03-240) stage 2.5 lock plate in to the grooves of the blades and the disc. The lock plate is between two retaining plates and 180 degrees apart from the first lock plate.

    7. Measure the clearance between two retaining plates after collecting all the circular clearance.

       1. The collected clearance must not be more than 0.059 in. (1.499 mm) in condition that the plates are pushed outward.

       2. If it is necessary to remove metal from a lock plate to get the correct plate clearance do the steps that follow:

          1. Remove the lock plate.

          2. Measure the clearance between two retaining plates (Dimension X) with a caliper.

          3. Remove metal from the lock plate in parallel with surface G with a file to get the specified clearance. Refer to Figure.

          4. Install the lock plate in position. The lock plate must be in line with a blade root.

    8. 
       CAUTION
       OBEY THE FOLLOWING PROCEDURE WITH IAE 1J13100 Tab bender 1 OFF FOR BENDING THE LOCK PLATE TABS. IF YOU DO NOT OBEY IT, THE LOCK PLATES AND THE BLADES CAN COME OFF DURING FLIGHT. IT CAN CAUSE DAMAGE TO THE LP COMPRESSOR BOOSTER STAGE ASSEMBLY.

       Bend the tabs on the two lock plates.

       1. Push the blade forward and put the lock plate into the disc groove.

       2. Push the blade rearward and lift the lock plate to engage with the blade groove.

       3. Put the tab into the pocket of IAE 1J13100 Tab bender 1 off correctly and make sure that the surface R of the tab bender touches the rim of the LPC disc.

       4. Carefully lift the tab bender so that the tab is bent by the fulcrum in pre-bent point.

       5. Remove the tab bender vertically to the lock plate after the surface D of the tab bender touches the lock plate.

       6. Make sure that the tab is correctly bent, Figure, inset 5.

       7. Do the Step thru Step for bending the remaining tab on the lock plate.

       8. Do the Step thru Step for bending the two tabs on the remaining lock plate.

       9. Check the blades can swing slightly by shaking airfoil tip.

    9. 

       CAUTION

       MAKE SURE THE RETAINING PLATES AND LOCK PLATES ARE INSTALLED INTO THE GROOVES OF THE BLADES. IF THEY ARE NOT INSTALLED PROPERLY, BLADES CAN COME OFF DURING FLIGHT. IT CAN CAUSE DAMAGE TO THE LP COMPRESSOR BOOSTER STAGE ASSEMBLY.

       Check the blades and make sure that the retaining plates and lock plates are properly installed into the grooves of the blades.

13. SUBTASK 72-32-80-440-080 Turn Over the LPC Disk and Balance Arbor Assembly

    1. Install the handling sling on to the top end of the balance arbor and safety the sling with the six bolts of the sling.

    2. Attach a hoist to the sling and lift slowly until the balance arbor clears the storage stand (L).

    3. Attach the other handling sling (part of the handling sling set) on to the bottom end of the balance arbor and safety with the six bolts of the sling.

    4. Attach another hoist to the bottom sling and lift the hoist and turn over the LPC disk and balance arbor assembly with the front end up.

    5. Remove the handling sling from the bottom end of the balance arbor.

    6. Slowly lower the LPC disk and balance arbor assembly on to the storage stand (H).

14. SUBTASK 72-32-80-440-081 Install the Disk, Stage 2.3 Blades and Balance Arbor Assembly onto the Balance Fixture

    1. Refer to Figure and Figure.

    2. Move IAE 1J12410 Transport stand 1 off and IAE 1J12532 Balance fixture 1 off to the work area.

    3. Make sure the balance fixture is on the transport stand with the rear end down.

    4. Remove the front balance cover from the rear balance cover.

    5. NOTE

       Make sure the stage 2.5 blades do not touch the rear balance cover.

       NOTE

       Make sure the dowel pointer of the four L-shaped bolts in the rear balance cover point to the inside diameter of the rear balance cover. When the dowel pointer points to the outside diameter the L-shaped bolts lock the axial movement of the ball bearing.

       Lower the adjusting screw in the end stopper housing at the bottom of the rear balance cover.

    6. Lower slowly the LPC disk, stage 2.3 and 2.5 blade and arbor assembly on to the rear balance cover. Align the center of the rotor with the rear balance cover.

    7. Remove the hoist and the sling after the outer race of the ball bearing fully touch the mating face.

    8. Lock the ball bearing with the L-shaped bolts.

       1. Loosen the four locknuts of the L-shaped bolts.

       2. Turn the four dowel pointers to the outside diameter of the rear balance cover.

       3. Tighten the four locknuts of the L-shaped bolts.

    9. Turn the adjusting screw and push lightly the rotor from the bottom.

    10. Install the 30 bolts in to the holes of the LP compressor rear case assembly.

    11. Safety the case assembly to the rear balance cover with bolts, washers and clamps.

    12. Remove the four brackets.

15. SUBTASK 72-32-80-440-096 Install the LP Compressor Mid Case Assembly (72-32-83, 02-650) to the Stage 2.0 LP Compressor Vane Assembly (72-32-83, 02-800)

    1. Refer to Figure.

    2. Apply the joint compound on the mating faces of the stage 2.0 vane assembly and the mid case assembly.

       1. Clean the mating faces of the stage 2.0 vane assembly and the mid case assembly with CoMat 01-124 ISOPROPYL ALCOHOL.

       2. Apply CoMat 04-004 JOINTING COMPOUND, LIGHT GRADE on to the mating faces of the stage 2.0 vane assembly and the mid case assembly. Dry for five minutes.

    3. Align the offset hole in the mid case assembly with the offset tang of the stage 2.0 vane assembly.

    4. Attach the mid case assembly to the stage 2.0 vane assembly.

16. SUBTASK 72-32-80-440-082 Install the Stage 2.0 LP Compressor Vane and LP Compressor Mid Case Assembly in to the LP Compressor Rear Case Assembly

    1. Refer to Figure.

    2. Clean the mating faces between the stage 2.0 LP compressor vane and mid case assembly and the LP compressor rear case assembly with CoMat 01-124 ISOPROPYL ALCOHOL and apply CoMat 04-004 JOINTING COMPOUND, LIGHT GRADE on to the faces and dry for five minutes.

    3. 

       CAUTION

       DO NOT HIT THE DISK KNIFE EDGE SEALS WITH THE VANES. THIS CAN CAUSE DAMAGE TO THOSE PARTS.

       Put the stage 2.0 LP compressor vane and mid case assembly into the LP compressor rear case assembly.

    4. Align the hole in the stage 2.0 LP compressor vane and mid case assembly with the threaded hole in the LP compressor rear case assembly.

    5. Safety the stage 2.0 vane and mid case assembly to the rear case assembly with the plug V2500-A5-72-32-82-02A-941A-D (72-32-82, 02-960) and washer V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-965). Torque the plug to 102 to 111 lbfin (11.50 to 12.50 Nm) and bend the tab of the washers. Refer to the SPM TASK 70-42-03-400-501 for tab washer installation.

17. SUBTASK 72-32-80-440-083 Install the Stage 2.0 Blades to the Disc and Safety with the Retaining Plates

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

    2. Install the stage 2.0 blades to the disc in the sequence given in the Step. Start from the No. 1 blade slot and install the blades in the counterclockwise direction when you look from the rear. The identification number of the No. 1 slot is on the top of the disc tang.

    3. Move rearward all the blades as much as half the thickness of the disc rim.

    4. Install the eight stage 2.0 retaining plates V2500-A5-72-32-80-03A-941A-D (72-32-80,03-235) between the two grooves on the stage 2.0 blades and disc.

       1. Move forward the blade at the No. 1 blade position and align the groove of the blade with the groove of the disc.

       2. Install the No. 1, stage 2.0 retaining plate into the two grooves of the No. 1 blade and the disc.

       3. Align the groove of the next blade center clockwise with the groove of the disc.

       4. Move the plate center clockwise into the two grooves of the No. 2 blade and the disc.

       5. Do the Step and Step for the remaining blades until the plate is fully into the grooves of the blades and disc.

       6. Do the same Step, Step and Step for the installation of the No. 2 through No. 8, stage 2.0 retaining plate into the grooves of the blades and disc.

    5. Install the new V2500-A5-72-32-80-03A-941A-D (72-32-80, 03-225) stage 2.0 lock plates in to the grooves of the blades and disc.

       1. Make space between any two adjacent stage 2.0 retaining plates.

       2. Install the first stage 2.0 lock plate in to the disc groove at the space between two retaining plates temporarily.

       3. Close the two adjacent stage 2.0 retaining plates to the lock plate.

       4. Safety the lock plate to the adjacent retaining plates.

    6. Install the new V2500-A5-72-32-80-03A-941A-D (72-32-80, 03-225) stage 2.0 lock plate in to the grooves of the blades and the disc. The lock plate is between two retaining plates and 180 degrees apart from the first lock plate.

    7. Measure the clearance between two retaining plates after collecting all the circular clearance.

       1. The collected clearance must not be more than 0.059 in. (1.499 mm) in condition that the plates are pushed outward.

       2. If it is necessary to remove metal from a lock plate to get the correct plate clearance do the steps that follow:

          1. Remove the lock plate.

          2. Measure the clearance between two retaining plates (Dimension X) with a caliper.

          3. Remove metal from the lock plate in parallel with surface G with a file to get the specified clearance. Refer to Figure.

          4. Install the lock plate in position. The lock plate must be in line with a blade root.

    8. 
       CAUTION
       OBEY THE FOLLOWING PROCEDURE WITH IAE 1J13100 Tab bender 1 OFF FOR BENDING THE LOCK PLATE TABS. IF YOU DO NOT OBEY IT, THE LOCK PLATES AND THE BLADES CAN COME OFF DURING FLIGHT. IT CAN CAUSE DAMAGE TO THE LP COMPRESSOR BOOSTER STAGE ASSEMBLY.

       Bend the tabs on the two lock plates.

       1. Push the blade rearward and put the lock plate into the disc groove.

       2. Push the blade forward and lift the lock plate to engage with the blade groove.

       3. Put the tab into the pocket of IAE 1J13100 Tab bender 1 off correctly and make sure that the surface R of the tab bender touches the rim of the LPC disc.

       4. Carefully lift the tab bender so that the tab is bent by the fulcrum in pre-bent point.

       5. Remove the tab bender vertically to the lock plate after the surface D of the tab bender touches the lock plate.

       6. Make sure that the tab is correctly bent, Figure, inset 5.

       7. Do the Step thru Step for bending the remaining tab on the lock plate.

       8. Do the Step thru Step for bending the two tabs on the remaining lock plate.

       9. Check the blades can swing slightly by shaking airfoil tip.

    9. 

       CAUTION

       MAKE SURE THE RETAINING PLATES AND LOCK PLATES ARE INSTALLED INTO THE GROOVES OF THE BLADES. IF THEY ARE NOT INSTALLED PROPERLY, BLADES CAN COME OFF DURING FLIGHT. IT CAN CAUSE DAMAGE TO THE LP COMPRESSOR BOOSTER STAGE ASSEMBLY.

       Check the blades and make sure that the retaining plates and lock plates are properly installed into the grooves of the blades.

18. SUBTASK 72-32-80-440-084 Install the Stage 1.5 Vane (72-32-83, 02-500) in to LP Compressor Front Case Assembly (72-32-83, 02-350)

    1. Refer to Figure.

    2. Put the LP compressor front case assembly on to the work bench with the front end down.

    3. Apply the joint compound on to the mating faces of the stage 1.5 vane and the LP compressor front case assembly.

       1. Clean the mating faces of the stage 1.5 vane, the LP compressor front case assembly with CoMat 01-124 ISOPROPYL ALCOHOL.

       2. Apply CoMat 04-004 JOINTING COMPOUND, LIGHT GRADE on to the mating faces of the stage 1.5 vane and the LP compressor front case assembly. Dry for five minutes.

    4. Attach the stage 1.5 vane on to the LP compressor front case.

    5. Install the 57 countersunk headed screws V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-354), washers V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-352) and nuts V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-351). Torque the nuts to 36 to 45 lbfin (4.00 to 5.00 Nm).

19. SUBTASK 72-32-80-440-085 Install the Stage 1.5 Vane and LP Compressor Front Case Assembly to the LP Compressor Mid Case Assembly

    1. Refer to Figure and Figure.

    2. Apply the joint compound on to the mating faces of the stage 1.5 vane, the LP compressor front case assembly and the LP compressor mid case assembly.

       1. Clean the mating faces of the stage 1.5 vane, the LP compressor front case assembly and the LP compressor mid case assembly with CoMat 01-124 ISOPROPYL ALCOHOL.

       2. Apply CoMat 04-004 JOINTING COMPOUND, LIGHT GRADE on to the mating faces of the stage 1.5 vane, the LP compressor front case assembly and the LP compressor mid case assembly. Dry for five minutes.

    3. 

       CAUTION

       DO NOT HIT THE DISK KNIFE EDGE SEALS WITH THE VANES. THIS CAN CAUSE DAMAGE TO THOSE PARTS.

       Install the stage 1.5 LP compressor vane assembly and the LP compressor front case assembly onto the LP compressor mid case assembly.

    4. Install the 14 brackets V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-300).

       1. Align the two holes in each bracket with the two location pins of the LP compressor front case assembly.

       2. NOTE

          Install the 29 washers V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-510) at the bolt holes at which the brackets are not installed.

          Attach the brackets to the LP compressor front case assembly.

    5. Pre SBE 70-0419: Safety the brackets and the LP compressor front case assembly with the 57 bolts V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-512), the 29 washers V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-510), the 57 washers V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-508) and the 57 nuts V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-506). Torque the nuts to 36 to 45 lbfin. (4 to 5 Nm).

       NOTE

       Install the 29 washers V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-510) at the bolt holes at which the brackets are not installed.

    6. SBE 70-0419: Safety the brackets and the LP compressor front case assembly with the 57 bolts V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-512), the 29 washers V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-510), the 19 washers V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-508) and the 57 nuts V2500-A5-72-32-83-02A-941A-D (72-32-83, 02-506). Torque the nuts to 36 to 45 lbfin. (4 to 5 Nm).

20. SUBTASK 72-32-80-440-086 Install the Stage 1.5 Blades to the Disc and Safety with the Retaining Plates

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

    2. Install the stage 1.5 blades to the disc in the sequence given in the Step. Start from the No. 1 blade slot and install the blades in the counterclockwise direction when you look from the rear. The identification number of the No. 1 slot is on the top of the disc tang.

    3. Move rearward all the blades as much as half the thickness of the disc rim.

    4. Install the eight stage 1.5 retaining plates V2500-A5-72-32-80-03A-941A-D (72-32-80, 03-220) between the two grooves on the stage 1.5 blades and disc.

       1. Move forward the blade at the No. 1 blade position and align the groove of the blade with the groove of the disc.

       2. Install the No. 1, stage 1.5 retaining plate into the two grooves of the No. 1 blade and the disc.

       3. Align the groove of the next blade center clockwise with the groove of the disc.

       4. Move the plate center clockwise into the two grooves of the No. 2 blade and the disc.

       5. Do Step and Step again for the remaining blades until the plate is fully into the grooves of the blades and disc.

       6. Do Step, Step and Step for the installation of the No. 2 through No. 8, stage 1.5 retaining plate into the grooves of the blades and disc.

    5. Install the new V2500-A5-72-32-80-03A-941A-D (72-32-80, 03-210) stage 1.5 lock plates in to the grooves of the blades and disc.

       1. Make space between any two adjacent stage 1.5 retaining plates.

       2. Install the first stage 1.5 lock plate in to the disc groove at the space between two retaining plates temporarily.

       3. Close the two adjacent stage 1.5 retaining plates to the lock plate.

       4. Safety the lock plate to the adjacent retaining plates.

    6. Install the new V2500-A5-72-32-80-03A-941A-D (72-32-80, 03-210) stage 1.5 lock plate in to the grooves of the blades and the disc. The lock plate is between two retaining plates and 180 degrees apart from the first lock plate.

    7. Measure the clearance between two retaining plates after collecting all the circular clearance.

       1. The collected clearance must not be more than 0.059 in. (1.499 mm) in condition that the plates are pushed outward.

       2. If it is necessary to remove metal from a lock plate to get the correct plate clearance do the steps that follow:

          1. Remove the lock plate.

          2. Measure the clearance between two retaining plates (Dimension X) with a caliper.

          3. Remove metal from the lock plate in parallel with surface G with a file to get the specified clearance. Refer to Figure.

          4. Install the lock plate in position. The lock plate must be in line with a blade root.

    8. 
       CAUTION
       OBEY THE FOLLOWING PROCEDURE WITH IAE 1J13100 Tab bender 1 OFF FOR BENDING THE LOCK PLATE TABS. IF YOU DO NOT OBEY IT, THE LOCK PLATES AND THE BLADES CAN COME OFF DURING FLIGHT. IT CAN CAUSE DAMAGE TO THE LP COMPRESSOR BOOSTER STAGE ASSEMBLY.

       Bend the tabs on the two lock plates.

       1. Push the blade rearward and put the lock plate into the disc groove.

       2. Push the blade forward and lift the lock plate to engage with the blade groove.

       3. Put the tab into the pocket of IAE 1J13100 Tab bender 1 off correctly and make sure that the surface R of the tab bender touches the rim of the LPC disc.

       4. Carefully lift the tab bender so that the tab is bent by the fulcrum in pre-bent point.

       5. Remove the tab bender vertically to the lock plate after the surface D of the tab bender touches the lock plate.

       6. Make sure that the tab is correctly bent, Figure, inset 5.

       7. Do the Step thru Step for bending the remaining tab on the lock plate.

       8. Do the Step thru Step for bending the two tabs on the remaining lock plate.

       9. Check the blades can swing slightly by shaking airfoil tip.

    9. 

       CAUTION

       MAKE SURE THE RETAINING PLATES AND LOCK PLATES ARE INSTALLED INTO THE GROOVES OF THE BLADES. IF THEY ARE NOT INSTALLED PROPERLY, BLADES CAN COME OFF DURING FLIGHT. IT CAN CAUSE DAMAGE TO THE LP COMPRESSOR BOOSTER STAGE ASSEMBLY.

       Check the blades and make sure that the retaining plates and lock plates are properly installed into the grooves of the blades.

21. SUBTASK 72-32-80-440-087 Install the Mid and Front Balance Cover on to the Rear Balance Cover

    1. Refer to Figure.

    2. NOTE

       Make sure that the support ring inner diameter align with the spigot of the 1.5 casing front flange.

       NOTE

       Make sure that there are no clearances between the mating faces of the two flanges on the support ring and rear balance cover.

       Install the support ring on to the rear balance cover and LP compressor case assembly.

       1. Install the support ring of the balance cover on to the rear balance cover and the stage 1.5 casing front flange. Align the two correlation marks on the support ring and the rear balance cover.

       2. Safety the support ring to the rear balance cover with 16 bolts of the balance cover. Tighten the 16 bolts.

    3. Install the front balance cover.

       1. Install two lifting slings to eye plates of the front balance cover.

       2. Attach a hoist to the two lifting slings.

       3. NOTE

          Make sure to align the roller bearing outer race and the roller in the front balance cover and the balance arbor.

          Lift and move the front balance cover above the rotor assembly.

       4. Slowly lower the cover on to the rotor assembly.

       5. Install the stopper on to the face of the roller bearing outer race.

       6. Install the eight bolts into the holes in the front and balance cover flange and safety the front cover with the 8 nuts.

22. SUBTASK 72-32-80-440-088 Install the LP Compressor Rotor on to the Balancing Machine

    1. Refer to Figure.

    2. NOTE

       Balancing tools in this TASK are applicable to a SCHENCK HL-5U dynamic balancing machine and bearing housing.

       NOTE

       Balancer must be operated at a speed between 700 and 900 rpm to agree with the gear ratios available.

       NOTE

       The direction of rotation is clockwise when you look from the rear.

       Move the LPC rotor balance arbor and balance cover assembly on the transport stand to the balance area.

    3. Install the two lower halves of the adapters in to the housings on the pedestals of the dynamic balancing machine.

    4. Safety the two lower halves of the adapters in to the housings on the pedestals with the four clamps and four bolts of the balancing machine.

    5. Loosen the bolts which safety the two pedestals of the balancing machine and adjust distance between the centerlines of them from 24 to 25 in. (615 to 635 mm).

    6. InstallIAE 1F10052 Two cables sling 1 off on to the trunnions on the rear balancing cover.

       1. NOTE

          Make sure the shaft portion of the trunnions are fully engaged in the holes of the hooks.

          Attach a hoist to the two cables sling and lift it.

       2. Lower the sling and attach the two hooks on to the trunnion.

    7. Slowly lift the assembly until it is clear of the transportation stand.

    8. Turn the assembly from the vertical to the horizontal around the trunnions on the rear balance cover.

    9. Hold the holders of the front balance cover and remove the two screws which secure the holders of the rear balance cover.

    10. Remove the holders from the center of the rear balance cover.

    11. Transfer the rotor with the hoist and set the front side of the rotor to the balancing machine drive shaft. Lower it slowly to the two pedestals of the balancing machine.

    12. Safety the two upper halves of the adapter with the four bolts, part of the balance cover.

    13. Adjust the drive shaft axial position with the adjusting lever of the balancing machine.

    14. Connect the arbor to the balancing machine drive shaft with six bolts of the balancing machine. Align the correlation mark on the balance arbor with the zero position on the protractor of the balancing machine as much as possible.

    15. Safety the pedestals to the balancing machine base with bolts, part of the balancing machine. Tighten the bolts.

    16. Install the two upper halves of the adapters, part of the balance arbor, on the lower half of them.

23. SUBTASK 72-32-80-220-056 Examine the Runout of the Rotor

    1. Refer to Figure.

    2. Seat a dial test indicator to the balancing machine with a magnet base.

    3. Put the tip of the probe on the dial indicator to the rear face and outer diameter of the stage 2.5 disk.

    4. Turn the protractor of the balancing machine and turn the rotor to examine the runout.

    5. Examine the runout with the dial test indicator.

       1. The runout on the rear face must not exceed 0.0024 in. TIR. (0.06 mm TIR.).

       2. The runout on the outer diameter must not exceed 0.0031 in. TIR. (0.08 mm TIR.).

    6. If the runout is more than the limits in the Step or Step, reject the rotor and do more inspection to find the cause.

    7. Remove the dial test indicator and the magnet base.

24. SUBTASK 72-32-80-440-089 Examine the Initial Unbalance of the Rotor

    1. Refer to Figure.

    2. Input the geometrical setting values to the balancing machine. The two planes for balance correction are the front flange of the stage 1.5 disk and the rear flange of the stage 2.5 disk.

    3. Measure and write the magnitude and the angle of the unbalance on each plane.

       1. Run the rotor until the unbalance indication becomes stable.

       2. Measure and write the magnitude and the angle of the unbalance on each plane.

       3. If the magnitude of the unbalance is over 3.5 oz.in (2500 gm.mm) reject the rotor and do the inspection to find the cause.

25. SUBTASK 72-32-80-440-090 Correct the Unbalance of the LP Compressor Rotor

    1. Refer to Figure and Figure.

    2. Prepare the balance counter weight (03-510, 03-512, 03-514, 03-516, 03-560, 03-562, 03-564 and 03-566) and the tubular rivet (03-500 and 03-550).

       NOTE

       You can attach more than two balance counter weights if required.

    3. Find the nearest weights from the balance counter weights.

    4. Do the unbalance correction in the subsequent steps.

       1. Release the two clamps and open the windows on the front/rear balance cover.

       2. Turn the protractor by hand and set the lightest position at the center of the window.

       3. Install the balance counter weights and safety them with the tubular rivets. UseIAE 1J13209 Riveter 1 off. Refer to the SPM TASK 70-39-03-390-501 for rivet installation.

       4. Close the windows and lock the clamps on the front/rear balance cover.

    5. Run the rotor and examine the remaining unbalance. The remaining unbalance must be less than subsequent limit value, the front flange of the stage 1.5 disk 0.25 oz.in (180 gm.mm), the rear flange of the stage 2.5 disk 0.25 oz.in (180 gm.mm).

26. SUBTASK 72-32-80-440-091 Remove the LP Compressor Rotor from the Balancing Machine

    1. Release the six bolts and disconnect the drive shaft from the rotor and retract the drive shaft with the adjusting lever.

    2. NOTE

       Make sure that the shaft portion of the trunnions are fully engaged in the holes in the hooks.

       Install the holders (part of the balance cover) to the center of the rear balance cover and safety it with the two screws.

    3. Extend the adjusting screw until it attaches to the rear end of the balance arbor.

    4. Remove the four bolts and remove the two bearing upper halves from the lower halves.

    5. Attach the hoist to the two cables sling and install the two cables sling on to the rear balancing cover.

    6. Slowly lift the rotor until it is clear of the balance machine.

    7. NOTE

       Make sure to align the four holes in the rear balance cover with the four posts of the transportation stand.

       Turn the assembly from the horizontal to the rear end down around the trunnions on the rear balance cover.

    8. Lower the rotor into the transportation stand.

    9. Remove the sling from the trunnions on the rear balance cover.

    10. Remove the four bolts and clamps which safety lower adapter to the housing on the pedestals of the balancing machine. Remove the two lower adapters from the two housings on the pedestals.

27. SUBTASK 72-32-80-440-092 Remove the LP Compressor from the Balance Cover

    1. Refer to Figure and Figure.

    2. Remove the eight bolts and nuts on the outer flange of the balance cover front.

    3. Install the two lifting slings to the eyeplate of the front balance cover.

    4. Remove the 16 screws from the support ring.

    5. InstallIAE 1J12541 Holding support 1 off to the stage 1.5 casing and stage 1.5 blade front flange.

       1. Put four supports in to the pocket of the inside diameter of the stage 1.5 front air seal.

    6. Safety the four supports to the front casing with the four bolts, washers and nuts.

    7. Tighten the eight wing nuts on the support by hand.

    8. Install the three puller bolts (part of IAE 1J12188 Puller bolt 1 off) in to three of the six threaded holes on the LP compressor booster stage disk inner flange.

    9. Turn the puller bolts and apply an equal force to remove the LP compressor booster stage assembly.

    10. Attach the vertical sling to the LP compressor booster stage assembly with the six bolts.

    11. Attach a hoist to the vertical sling and slowly lift the LP compressor booster stage assembly until it is clear of the balance arbor.

    12. Slowly lower the LP compressor booster stage assembly on to the storage stand (L).

    13. Remove the six bolts and the vertical sling.

Figure: Sectional View of the LP Compressor Booster Stage Assembly

Sectional View of the LP Compressor Booster Stage Assembly



Figure: View of the LP Compressor Booster Stage Blades and Disk

View of the LP Compressor Booster Stage Blades and Disk



Figure: Positions of the LP Compressor Booster Stage Blades Retaining Plates and Lock Plates

Sheet 1



Legend

Positions of the LP Compressor Booster Stage Blades Retaining Plates and Lock Plates

Sheet 1

Close

Figure: Positions of the LP Compressor Booster Stage Blades Retaining Plates and Lock Plates

Sheet 2



Legend

Positions of the LP Compressor Booster Stage Blades Retaining Plates and Lock Plates

Sheet 2

Close

Figure: View of the LP Compressor Booster Stage Vanes

View of the LP Compressor Booster Stage Vanes



Figure: Install the Balance Adapter to the Transport Stand and Balance Fixture

Install the Balance Adapter to the Transport Stand and Balance Fixture



Figure: Put the Heater on to the LP Compressor Booster Stage Disk

Put the Heater on to the LP Compressor Booster Stage Disk



Figure: Install the LP Compressor Booster Stage Disk on to the Balance Arbor

Install the LP Compressor Booster Stage Disk on to the Balance Arbor



Figure: Move the LP Compressor Booster Stage Disk and Balance Adapter Assembly from the Transport Stand to the Horizontal Work Stand

Move the LP Compressor Booster Stage Disk and Balance Adapter Assembly from the Transport Stand to the Horizontal Work Stand



Figure: The Sequence Diagram to Install the LP Compressor Booster Stage Blades

The Sequence Diagram to Install the LP Compressor Booster Stage Blades



Figure: Install the LP Compressor Booster Stage Blades to the Disk

Sheet 1



Legend

Install the LP Compressor Booster Stage Blades to the Disk

Sheet 1

Close

Figure: Install the LP Compressor Booster Stage Blades to the Disk

Sheet 2



Legend

Install the LP Compressor Booster Stage Blades to the Disk

Sheet 2

Close

Figure: Install the LP Compressor Booster Stage Blades to the Disk

Sheet 3



Legend

Install the LP Compressor Booster Stage Blades to the Disk

Sheet 3

Close

Figure: Install the LP Compressor Booster Stage Blades to the Disk

Sheet 4



Legend

Install the LP Compressor Booster Stage Blades to the Disk

Sheet 4

Close

Figure: Install the Holding Support

Install the Holding Support



Figure: Put the LP Compressor Booster Stage Disk and Balance Arbor Assembly on to the Storage Stand (L)

Sheet 1



Legend

Put the LP Compressor Booster Stage Disk and Balance Arbor Assembly on to the Storage Stand (L)

Sheet 1

Close

Figure: Install the LP Compressor Stage 2.3 Vane Assembly onto LP Compressor Rear Case Assembly

Sheet 2



Legend

Install the LP Compressor Stage 2.3 Vane Assembly onto LP Compressor Rear Case Assembly

Sheet 2

Close

Figure: Install the LP Compressor Stage 2.3 Vanes, the LP Compressor Rear Case, and the Stage 2.5 Compressor Blades Assembly on to the Disk

Install the LP Compressor Stage 2.3 Vanes, the LP Compressor Rear Case, and the Stage 2.5 Compressor Blades Assembly on to the Disk



Figure: Install the LP Compressor Disk, the 2.3 and 2.5 Stage Blades and the Balance Arbor Assembly on to the Balance Fixture

Sheet 1



Legend

Install the LP Compressor Disk, the 2.3 and 2.5 Stage Blades and the Balance Arbor Assembly on to the Balance Fixture

Sheet 1

Close

Figure: Install the LP Compressor Disk, the 2.3 and 2.5 Stage Blades and the Balance Arbor Assembly on to the Balance Fixture

Sheet 2



Legend

Install the LP Compressor Disk, the 2.3 and 2.5 Stage Blades and the Balance Arbor Assembly on to the Balance Fixture

Sheet 2

Close

Figure: Install the LP Compressor Stage 2 and 1.5 Blades to the Disk

Sheet 1



Legend

Install the LP Compressor Stage 2 and 1.5 Blades to the Disk

Sheet 1

Close

Figure: Install the LP Compressor Stage 2 and 1.5 Blades to the Disk

Sheet 2



Legend

Install the LP Compressor Stage 2 and 1.5 Blades to the Disk

Sheet 2

Close

Figure: Install the LP Compressor Stage 1.5 Vane in to the LP Compressor Front Case

Install the LP Compressor Stage 1.5 Vane in to the LP Compressor Front Case



Figure: Install the LP Compressor Stage 1.5 Vanes, LP Compressor Front Case and the LP Compressor Mid Case Assembly on to the LP Compressor Rear Case

Sheet 1



Legend

Install the LP Compressor Stage 1.5 Vanes, LP Compressor Front Case and the LP Compressor Mid Case Assembly on to the LP Compressor Rear Case

Sheet 1

Close

Figure: Install the LP Compressor Stage 1.5 Vanes, LP Compressor Front Case and the LP Compressor Mid Case Assembly on to the LP Compressor Rear Case

Sheet 2



Legend

Install the LP Compressor Stage 1.5 Vanes, LP Compressor Front Case and the LP Compressor Mid Case Assembly on to the LP Compressor Rear Case

Sheet 2

Close

Figure: Install the Front Balance Cover on to the Rear Balance Cover

Install the Front Balance Cover on to the Rear Balance Cover



Figure: Install and Remove the LP Compressor Booster Stage Assembly to the Balancing Machine

Install and Remove the LP Compressor Booster Stage Assembly to the Balancing Machine



Figure: Set up for Run Out Checks and Dynamic Balancing

Sheet 1



Legend

Set up for Run Out Checks and Dynamic Balancing

Sheet 1

Close

Figure: Balance Correction Planes

Sheet 2



Legend

Balance Correction Planes

Sheet 2

Close

Figure: Tubular Rivet and Balance Counter Weight

Sheet 3



Legend

Tubular Rivet and Balance Counter Weight

Sheet 3

Close

Figure: Install the Holding Support

Install the Holding Support



Figure: Move the LP Compressor Booster Stage Assembly From the Transport Stand to the Storage Stand (L)

Move the LP Compressor Booster Stage Assembly From the Transport Stand to the Storage Stand (L)



Figure: Locations of the Sub-Module Serial Number and Sub-Module Number

Locations of the Sub-Module Serial Number and Sub-Module Number



Figure: Put The LP Compressor Booster Stage Disk And Balance Arbor Assembly On To The Storage Stand (L)

Put The LP Compressor Booster Stage Disk And Balance Arbor Assembly On To The Storage Stand (L)