Export Control
EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.Copyright
© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).Applicability
V2500-A1
Common Information
TASK 72-44-00-440-001-A02 HP Turbine (HPT) Stage 1 Nozzle Assembly - Assemble The Nozzle, Assembly-001
General
Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.
For all parts identified in a different Chapter/Section/Subject, the applicable Chapter/Section/Subject comes before the Fig/item number.
For standard torque data and procedures, refer to SPM TASK 70-41-00-400-501 and SPM TASK 70-41-02-400-501.
Special torque data and assembly tolerances are included in this procedure.
Lubricate all threads and abutment faces of nuts and bolts with CoMat 10-077 APPROVED ENGINE OILS, unless other lubricants are referred to in the procedure.
To identify, lubricate and install seal rings, refer to SPM TASK 70-44-01-400-501.
The number for each radial location must be identified in a clockwise direction. These start at the engine top position when you look from the rear of the engine, unless stated differently in the procedure.
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| IAE 1F10052 Two cables sling | 0AM53 | IAE 1F10052 | 1 | |
| IAE 1P16075 Fixture | 0AM53 | IAE 1P16075 | 1 | |
| IAE 1P16076 Support | 0AM53 | IAE 1P16076 | 1 | |
| IAE 1P16077 Fixture | 0AM53 | IAE 1P16077 | 1 | |
| IAE 1P16078 Alignment pin | 0AM53 | IAE 1P16078 | 4 | |
| IAE 1P16109 cover | 0AM53 | IAE 1P16109 | 1 | |
| IAE 1P16226 Alignment fixture | 0AM53 | IAE 1P16226 | 1 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 01-573 WAX BLEND, PARAFFIN | 24269 | CoMat 01-573 | ||
| CoMat 10-077 APPROVED ENGINE OILS | X333X | CoMat 10-077 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
Reference clearance/interference at Location 2004. If required, use the data written as a note in TASK 72-44-30-200-001-B00 (INSPECTION-001) and TASK 72-44-20-200-001-B01 (INSPECTION-001).
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 2004
Inner Combustion Chamber Assembly ENGINE-COMBUSTION CHAMBER INNER LINER (72-44-30, 01-401), Axial Distance (Between Mount Flanges)
Stage 1 HPT Vane Assembly ENGINE-STAGE 1 HPT VANE CLUSTER ASSEMBLY (72-44-20, 01-240), Axial Distance (Front Flange Front Face To Rear Flange Rear Face)
Chamber Distance
0.844
Clear
0.845
Clear
0.835
0.002
0.830
0.003
Vane Distance
0.852
0.017
0.852
0.022
0.842
Intf
0.842
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 2004
Inner Combustion Chamber Assembly ENGINE-COMBUSTION CHAMBER INNER LINER (72-44-30, 01-401), Axial Distance (Between Mount Flanges)
Stage 1 HPT Vane Assembly ENGINE-STAGE 1 HPT VANE CLUSTER ASSEMBLY (72-44-20, 01-240), Axial Distance (Front Flange Front Face To Rear Flange Rear Face)
Chamber Distance
21.438
Clear
21.463
Clear
21.209
0.050
21.082
0.076
Vane Distance
21.640
0.430
21.640
0.559
21.390
Intf
21.390
Intf
SUBTASK 72-44-00-220-057-A02 Reference Fits and Clearances of the Stage 1 HPT Support Assembly and the Stage 1 HPT Vane Assembly at Location 2004
Refer to Figure.
Reference clearance/interference at location 2000. If required, use the data written as a note in TASK 72-44-30-200-001-B00 (INSPECTION-001) and TASK 72-44-50-200-001-C00 (INSPECTION-001).
Table 3. 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 2000
Inner Combustion Chamber Assembly ENGINE-COMBUSTION CHAMBER INNER LINER (72-44-30, 01-401), Rear Location Bore
Stage 1 HPT Cooling Air Duct ENGINE-STAGE 1 HPT COOLING DUCT ASSEMBLY (72-44-50, 01-010), Rear Location Diameter
Chamber Assembly Bore
19.398
Intf
19.400
Clear
19.392
0.000
19.392
0.002
Air Duct Diameter
19.402
0.010
19.402
0.010
19.398
Intf
19.398
Intf
Table 4. 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 2000
Inner Combustion Chamber Assembly ENGINE-COMBUSTION CHAMBER INNER LINER (72-44-30, 01-401), Rear Location Bore
Stage 1 HPT Cooling Air Duct ENGINE-STAGE 1 HPT COOLING DUCT ASSEMBLY (72-44-50, 01-010), Rear Location Diameter
Chamber Assembly Bore
492.709
Intf
492.760
Clear
492.557
0.000
492.557
0.051
Air Duct Diameter
492.810
0.250
492.811
0.254
492.710
Intf
492.710
Intf
SUBTASK 72-44-00-220-060 Reference Fits and Clearances of the Inner Combustion Chamber Assembly and the Stage 1 HPT Cooling Air Duct at Location 2000
Refer to Figure.
Reference interference at location 2006. If required, use the data written as a note in TASK 72-44-50-200-001-C00 (INSPECTION-001) and TASK 72-44-50-200-002 (INSPECTION-002).
NOTE
Must maintain tight fit. Reject HPT cooling duct if loose.Table 5. Fits and Clearances (all dimensions are in inches) NEW PART
DIMENSIONS
WORN PART
DIMENSIONS
REJECT IF
PART IDENT
Size
Clearance
(Non-select)
MORE THAN
LOCATION 2006 (Reference Only)
HPT Cooling Duct Deflector ENGINE-STAGE 1 HPT COOLING DUCT ASSEMBLY (72-44-50, 01-080), Location Diameter
Stage 1 HPT Cooling Duct Assembly ENGINE-STAGE 1 HPT COOLING DUCT ASSEMBLY (72-44-50, 01-010), Location Diameter
Deflector Location Diameter
17.360
17.340
Intf
0.000
Intf
0.000
Duct Location Diameter
17.370
17.360
0.030
Intf
0.050
Intf
Table 6. Fits and Clearances (all dimensions are in millimeters) NEW PART
DIMENSIONS
WORN PART
DIMENSIONS
REJECT IF
PART IDENT
Size
Clearance
(Non-select)
MORE THAN
LOCATION 2006 (Reference Only)
HPT Cooling Duct Deflector ENGINE-STAGE 1 HPT COOLING DUCT ASSEMBLY (72-44-50, 01-080), Location Diameter
Stage 1 HPT Cooling Duct Assembly ENGINE-STAGE 1 HPT COOLING DUCT ASSEMBLY (72-44-50, 01-010), Location Diameter
Deflector Location Diameter
440.94
440.44
Intf
0.00
Intf
0.00
Duct Location Diameter
441.20
440.94
0.76
Intf
1.27
Intf
SUBTASK 72-44-00-220-061 Reference Fits and Clearances of the Stage 1 Turbine Nozzle Assembly at Location 2006, Refer to
Refer to Figure.
Put the IAE 1P16075 Fixture 1 off dowel pin up, on the bench.
SUBTASK 72-44-00-440-070 Install the Stage 1 HPT Support Assembly on the Fixture
Refer to Figure.
Use CoMat 01-573 WAX BLEND, PARAFFIN to hold the seals in position. Remove any wax that is not needed.
Install the stage 1 HPT vane seals (01-480) in the outer vane platform slots.
Use CoMat 01-573 WAX BLEND, PARAFFIN to hold the seals in position. Remove any wax that is not needed.
Install the stage 1 HPT vane seals (01-512) and (01-514) in the inner vane platform slots.
Install the stage 1 HPT vane seal in the slots that are located on the left side of the Stage 1 HPT Vane Assemblies ENGINE-STAGE 1 HPT VANE CLUSTER ASSEMBLY (72-44-20, 01-240).
SUBTASK 72-44-00-440-060-A02 Install the Stage 1 HPT Vane Seals in the Slots of the Stage 1 Vane Assemblies
SBE 72-0151 and SBE 72-0598: New stage 1 HPT vane seals.
Refer to Figure.
SUBTASK 72-44-00-440-061 Install the Stage 1 HPT Vane Assemblies in the Stage 1 HPT Support Assembly
Refer to Figure.
Install the bolt 1 off ENGINE-STAGE 1 HPT VANE CLUSTER ASSEMBLY (72-44-20, 01-520), screw head type at the location approximately 180 degrees from the offset hole in the Stage 1 HPT Support Assembly, Figure.
NOTE
This bolt is under two flanges where Stage 1 HPT Seal Assembly and the classified spacer connect when the seal assembly is installed.Install the stage 1 HPT spacers 39 off ENGINE-STAGE 1 HPT OUTER SEAL ASSEMBLY (72-44-40, 01-019) in the recesses around the boltholes (with the tangs positioned to the outside diameter).
Install the Stage 1 HPT Seal Assembly 1 off ENGINE-STAGE 1 HPT OUTER SEAL ASSEMBLY (72-44-40, 01-010).
Install the spring tension washers 39 off ENGINE-STAGE 1 HPT OUTER SEAL ASSEMBLY (72-44-40, 01-100).
Install the sleeve bushings 39 off ENGINE-STAGE 1 HPT OUTER SEAL ASSEMBLY (72-44-40, 01-120).
Install the bolts ENGINE-STAGE 1 HPT OUTER SEAL ASSEMBLY (72-44-40, 01-140) which hold the Stage 1 HPT Seal Assembly in position.
Tighten the bolts with your hand.
NOTE
The bolts will be torqued when the classified spacer is installed. Refer to TASK 72-00-44-420-001-001 (INSTALLATION-001), TASK 72-00-44-420-001-002 (INSTALLATION-002), or TASK 72-40-00-430-005 (ASSEMBLY-005).
SUBTASK 72-44-00-440-062 Install the Stage 1 HPT Seal Assembly
Install the Inner Combustion Chamber Liner Assembly ENGINE-COMBUSTION CHAMBER INNER LINER (72-44-30, 01-420) in the IAE 1P16076 Support 1 off, Figure.
Install the IAE 1P16078 Alignment pin 4 off at equal spaces around the flange and in the captured nuts on the Inner Combustion Chamber Liner Assembly.
Put the Stage 1 HPT Cooling Duct Assembly ENGINE-STAGE 1 HPT COOLING DUCT ASSEMBLY (72-44-50, 01-010) with the small hole in the inner flange on the dowel pin on the fixture ring, Figure.
Turn the combustion chamber as necessary to locate the IAE 1P16078 Alignment pins through the holes in the Stage 1 HPT Cooling Duct Assembly flange.
Attach the IAE 1F10052 Two cables sling 1 off to the spools on the IAE 1P16075 Fixture.
Put the dowel pin on the IAE 1P16075 Fixture 1 off so it goes in the offset hole in the IAE 1P16076 Support 1 off.
NOTE
The four IAE 1P16078 Alignment pin alignment pins should locate in the vane inner flange slots.
Lower the Stage 1 HPT Support Assembly and the Stage 1 HPT Vane Assemblies on to the Inner Combustion Chamber Liner Assembly.
Remove the IAE 1P16075 Fixture from the Stage 1 HPT Vane Assemblies.
SUBTASK 72-44-00-440-063 Install the Inner Combustion Chamber Liner Assembly
Install the HPT cooling duct deflector ENGINE-STAGE 1 HPT COOLING DUCT ASSEMBLY (72-44-50, 01-080) on the Stage 1 HPT Cooling Duct Assembly, Figure.
Lower the Stage 1 HPT Cooling Duct Assembly and put the small hole in the inner flange on the dowel pin in the ring.
NOTE
The four IAE 1P16078 Alignment pin should locate in the cooling duct assembly outer flange.Install the 20 Stage 1 HPT Duct Segments ENGINE-STAGE 1 HPT SEGMENT (72-44-60, 01-010), Figure.
Install the stops ENGINE-STAGE 1 HPT SEGMENT (72-44-60, 01-020) and the bolts ENGINE-STAGE 1 HPT SEGMENT (72-44-60, 01-040), except at the alignment pin locations.
Loosen the nut and the swing bolt on IAE 1P16226 Alignment fixture 1 off. Install the fixture to round out the duct assembly and secure with the swing bolt and nut.
Install the IAE 1P16077 Fixture 1 off on the assembly.
Install the IAE 1P16109 cover 1 off over the Stage 1 HPT Support Assembly, Figure.
SUBTASK 72-44-00-440-064 Install the HPT Cooling Duct Deflector, the Stage 1 HPT Cooling Duct Assembly and the Stage 1 HPT Duct Segments
Figure: Stage 1 Turbine Nozzle Assembly - Fits and Clearances
Stage 1 Turbine Nozzle Assembly - Fits and Clearances

Figure: Install the Stage 1 HPT Vane Assemblies and the Stage 1 HPT Support Assembly in the IAE 1P16075 Fixture
Install the Stage 1 HPT Vane Assemblies and the Stage 1 HPT Support Assembly in the IAE 1P16075 Fixture

Figure: Install the Stage 1 HPT Seal Assembly and Stage 1 HPT Spacers
Install the Stage 1 HPT Seal Assembly and Stage 1 HPT Spacers

Figure: Install the Stage 1 HPT Support Assembly and the Stage 1 HPT Vane Assemblies
Install the Stage 1 HPT Support Assembly and the Stage 1 HPT Vane Assemblies

Figure: Install the HPT Cooling Duct Assembly and the Cooling Duct Deflector
Install the HPT Cooling Duct Assembly and the Cooling Duct Deflector

Figure: Install the Stage 1 HPT Duct Segments
Install the Stage 1 HPT Duct Segments

Figure: Install the IAE 1P16109 Cover
Install the IAE 1P16109 Cover

