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 72-42-60-440-001 Outer Combustion Chamber Assembly - Assemble The Outer Combustion Chamber Assembly, 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 the SPM TASK 70-41-00-400-501 and TASK 70-41-02-400-501.
Special torque data and assembly tolerances are included in the 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.
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
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| IAE 3P16238 Angle box wrench | 0AM53 | IAE 3P16238 | 1 | |
| IAE 3P16240 Igniter guide segment wrench | 0AM53 | IAE 3P16240 | 1 | |
| IAE 3P16239 Ratchet wrench | 0AM53 | IAE 3P16239 | 1 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 10-077 APPROVED ENGINE OILS | LOCAL | CoMat 10-077 |
Safety Requirements
NONEProcedure
Refer to: Figure
Install the 10 segments Outer Combustion Chamber Assembly (72-42-61,01-600), the 10 washers Outer Combustion Chamber Assembly (72-42-61,01-740), and the 40 washers Outer Combustion Chamber Assembly (72-42-61,01-760). Use the IAE 3P16238 Angle box wrench 1 off to install the 50 nuts Outer Combustion Chamber Assembly (72-42-61,01-780).
Install the segments Outer Combustion Chamber Assembly (72-42-61,01-610) and the washers Outer Combustion Chamber Assembly (72-42-61, 01-740 and Outer Combustion Chamber Assembly01-760). Use the IAE 3P16238 Angle box wrench to install the nuts Outer Combustion Chamber Assembly (72-42-61,01-780).
Install the segments Outer Combustion Chamber Assembly (72-42-61,01-620) and the washers Outer Combustion Chamber Assembly (72-42-61, 01-740 and Outer Combustion Chamber Assembly01-760). Use the IAE 3P16238 Angle box wrench to install the nuts Outer Combustion Chamber Assembly (72-42-61,01-780).
Install the segments Outer Combustion Chamber Assembly (72-42-61, 01-650 ,Outer Combustion Chamber Assembly01-660 and Outer Combustion Chamber Assembly01-670) and the washers Outer Combustion Chamber Assembly (72-42-61, 01-740 and Outer Combustion Chamber Assembly01-760). Use the IAE 3P16238 Angle box wrench to install the nuts Outer Combustion Chamber Assembly (72-42-61,01-780).
Install the segments Outer Combustion Chamber Assembly (72-42-61,01-630) and the washers Outer Combustion Chamber Assembly (72-42-61, 01-740 and Outer Combustion Chamber Assembly01-760). Use the IAE 3P16238 Angle box wrench to install the nuts Outer Combustion Chamber Assembly (72-42-61,01-780).
Install the segment Outer Combustion Chamber Assembly (72-42-61,01-640) and the washers Outer Combustion Chamber Assembly (72-42-61, 01-740 and Outer Combustion Chamber Assembly01-760). Use the IAE 3P16240 Igniter guide segment wrench 1 off to install the nuts Outer Combustion Chamber Assembly (72-42-61,01-780).
CAUTION
MAKE SURE THAT THE WASHERS Outer Combustion Chamber Assembly (72-42-61,01-760) ARE CORRECTLY INSTALLED WITH THE DIMPLE IN THE SLOT AS SHOWN IN Figure BEFORE YOU TORQUE THE NUTS.WHEN YOU USE THE IAE 3P16239 Ratchet wrench, THE ACTUAL TORQUE WRENCH READING WILL BE LESS THAN THAT GIVEN BELOW. REFER TO TASK 70-41-01-400-501.Tighten the 250 nuts to no more than 50 lbfin (5.649 Nm), to a point where the washers are no longer free to move. Loosen the nuts one half turn, then use the IAE 3P16239 Ratchet wrench 1 off to torque the nuts to 25 to 35 lbfin (2.825 to 3.954 Nm).
SUBTASK 72-42-60-440-051 Install the Combustion Chamber Liner Segments in to the ID of the Combustion Chamber Outer Liner
NOTE
The 250 nuts Outer Combustion Chamber Assembly (72-42-61,01-780) used to install the segments will be torqued at the end of the procedure. Replace the nuts any time they are removed.
Figure: Assemble the outer combustion chamber assembly
Assemble the outer combustion chamber assembly
