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
All
Common Information
TASK 75-24-49-440-101-C00 LPT ACC Air Ducts And Tubes - Assemble The Support Assemblies To The Tubes And Ducts, Assembly-001
General
Fig/item numbers in parentheses in the procedure agree with those used in the EIPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the EIPC.
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 the procedure.
WARNING
Lubricate all threads and abutment faces of nuts and bolts with CoMat 10-094 ANTI-SEIZE COMPOUND, PURE Ni-SPECIAL, 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.
After assembly apply CoMat 07-038 AIR DRYING ENAMEL to any damaged surface protection, joint flanges and attach parts. Use the correct color of the CoMat 07-038 AIR DRYING ENAMEL. Refer to SPM TASK 70-63-02-380-501.
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.
Refer to Figure for a view of the LP turbine ACC assembly.
NOTE
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| IAE 1M14084 Support fixture | 0AM53 | IAE 1M14084 | 2 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 07-038 AIR DRYING ENAMEL | K3504 | CoMat 07-038 | ||
| CoMat 10-094 ANTI-SEIZE COMPOUND, PURE Ni-SPECIAL | LOCAL | CoMat 10-094 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
Loosen the knurled knob and move the swing bolt out. Remove the two screws and the two washers which safety the lower LP turbine cooling air duct to the IAE 1M14084 Support fixture.
Remove the lower LP turbine cooling air duct from the IAE 1M14084 Support fixture and position it on a work bench.
SUBTASK 75-24-49-440-074 Remove the Lower LP Turbine Cooling Air Duct from the Support Fixture

CAUTION
BE CAREFUL IF YOU BEND THE HALF LOOP CLAMP IN ORDER TO PREVENT DAMAGE OF THE PART.NOTE
The half loop clamp and the support assembly are preassembled by the rivets at the front and rear ends of the parts.NOTE
For the location of the support assembly, refer to Figure.Bend the half loop clamp lightly.
Move the support assembly above the tube ends of the lower LP turbine cooling air duct.
Make sure that the support assembly is correctly installed on to the lower LP turbine cooling air duct.
Install the eight bolts by hand until the locking element of the clip nut.
Safety the support assembly with eight bolts to the lower LP turbine cooling air duct.
Do not fully tighten the bolts at this time.
SUBTASK 75-24-49-440-075 Install the Support Assembly C to the Lower LP Turbine Cooling Air Duct

CAUTION
BE CAREFUL IF YOU BEND THE HALF LOOP CLAMP IN ORDER TO PREVENT DAMAGE OF THE PART.NOTE
The half loop clamp and the support assembly are preassembled by the rivets at the front and rear ends of the parts.NOTE
For the location of the support assembly, refer to Figure.Bend the half loop clamp lightly.
Move the support assembly above the tube ends of the lower LP turbine cooling air duct.
Make sure that the support assembly is correctly installed on to the lower LP turbine cooling air duct.
Install the eight bolts by hand until the locking element of the clip nut.
Safety the support assembly with eight bolts to the lower LP turbine cooling air duct.
Do not fully tighten the bolts at this time.
SUBTASK 75-24-49-440-076 Install the Support Assembly D to the Lower LP Turbine Cooling Air Duct

CAUTION
BE CAREFUL IF YOU BEND THE HALF LOOP CLAMP IN ORDER TO PREVENT DAMAGE OF THE PART.NOTE
The half loop clamp and the support assembly are preassembled by the rivets at the front and rear ends of the parts.NOTE
For the location of the support assembly, refer to Figure.Bend the half loop clamp lightly.
Move the support assembly above the tube ends of the lower LP turbine cooling air duct.
Make sure that the support assembly is correctly installed on to the lower LP turbine cooling air duct.
Install the 16 bolts by hand until the locking element of the clip nut.
Safety the support assembly with 16 bolts to the lower LP turbine cooling air duct.
Do not fully tighten the bolts at this time.
SUBTASK 75-24-49-440-077 Install the Support Assembly B to the Lower LP Turbine Cooling Air Duct

CAUTION
BE CAREFUL IF YOU BEND THE HALF LOOP CLAMP IN ORDER TO PREVENT DAMAGE OF THE PART.NOTE
The half loop clamp and the support assembly are preassembled by the rivets at the front and rear ends of the parts.NOTE
For the location of the support assembly, refer to Figure.Bend the half loop clamp lightly.
Move the support assembly above the tube ends of the lower LP turbine cooling air duct.
Make sure that the support assembly is correctly installed on to the lower LP turbine cooling air duct.
Install the 16 bolts by hand until the locking element of the clip nut.
Safety the support assembly with 16 bolts to the lower LP turbine cooling air duct.
Do not fully tighten the bolts at this time.
SUBTASK 75-24-49-440-078 Install the Support Assembly E to the Lower LP Turbine Cooling Air Duct
Refer to Figure.
Install the lower LP turbine cooling air duct to the IAE 1M14084 Support fixture 1 off. Make sure that the tube ends are engaged correctly in their holes.
Safety the lower LP turbine cooling air duct to the IAE 1M14084 Support fixture with the swing bolt, the knurled knob, the two washers, and the two screws.
SUBTASK 75-24-49-440-079 Install the Lower LP Turbine Cooling Air Duct to the Support Fixture
Refer to Figure.
Loosen the knurled knob and move the swing bolt out. Remove the two screws and the two washers which safety the upper LP turbine cooling air duct to the IAE 1M14084 Support fixture.
Remove the upper LP turbine cooling air duct from the IAE 1M14084 Support fixture and position it on a work bench.
SUBTASK 75-24-49-440-081 Remove the Upper LP Turbine Cooling Air Duct from the Support Fixture

CAUTION
BE CAREFUL IF YOU BEND THE HALF LOOP CLAMP IN ORDER TO PREVENT DAMAGE OF THE PART.NOTE
The half loop clamp and the support assembly are preassembled by the rivets at the front and rear ends of the parts.NOTE
For the location of the support assembly, refer to Figure.Bend the half loop clamp lightly.
Move the support assembly above the tube ends of the lower LP turbine cooling air duct.
Make sure that the support assembly is correctly installed on to the upper LP turbine cooling air duct.
Install the eight bolts by hand until the locking element of the clip nut.
Safety the support assembly with eight bolts to the upper LP turbine cooling air duct.
Do not fully tighten the bolts at this time.
SUBTASK 75-24-49-440-082 Install the Support Assembly F to the Upper LP Turbine Cooling Air Duct

CAUTION
BE CAREFUL IF YOU BEND THE HALF LOOP CLAMP IN ORDER TO PREVENT DAMAGE OF THE PART.NOTE
The half loop clamp and the support assembly are preassembled by the rivets at the front and rear ends of the parts.NOTE
For the location of the support assembly, refer to Figure.Bend the half loop clamp lightly.
Move the support assembly above the tube ends of the upper LP turbine cooling air duct.
Make sure that the support assembly is correctly installed on to the upper LP turbine cooling air duct.
Install the eight bolts by hand until the locking element of the clip nut.
Safety the support assembly with eight bolts to the upper LP turbine cooling air duct.
Do not fully tighten the bolts at this time.
SUBTASK 75-24-49-440-083 Install the Support Assembly A to the Upper LP Turbine Cooling Air Duct
Refer to Figure.
Install the upper LP turbine cooling air duct to the IAE 1M14084 Support fixture 1 off. Make sure that the tube ends are engaged correctly in their holes.
Safety the upper LP turbine cooling air duct to the IAE 1M14084 Support fixture with the swing bolt, the knurled knob, the two washers, and the two screws.
SUBTASK 75-24-49-440-084 Install the Upper LP Turbine Cooling Air Duct to the Support Fixture
Figure: Install/Remove the LP Turbine Cooling Air Duct to/from the Support Fixture
Install/Remove the LP Turbine Cooling Air Duct to/from the Support Fixture

Figure: Position of the Support Assemblies
Position of the Support Assemblies

Figure: Installation of the Support Assemblies to the Lower LP Turbine Cooling Air Duct
Installation of the Support Assemblies to the Lower LP Turbine Cooling Air Duct

Figure: Installation of the Support Assemblies to the Upper LP Turbine Cooling Air Duct
Installation of the Support Assemblies to the Upper LP Turbine Cooling Air Duct

