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 72-50-41-100-003 LPT Shaft - Clean, Cleaning-003
General
This TASK gives the procedure to clean the LP turbine shaft.
The practices and processes referred to in the procedure by the TASK numbers are in the SPM.
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.
To identify the consumable materials refer to the IPC.
Special tools are identified in the procedure by the tool primary number.
References
Refer to the SPM for data on these items.
Cleaning - General Information, SPM TASK 70-10-00-100-501
Make-up of the Solutions to Solvent Clean (All Metals), SPM TASK 70-11-26-100-501
The Test and Control of the Solutions to Solvent Clean (All Metals), SPM TASK 70-11-26-200-502
The Procedure to Solvent Clean (All Metals), SPM TASK 70-11-26-300-503
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Cleaning Equipment | 0AM53 | Cleaning Equipment | ||
| IAE 2J12611 Sling | 0AM53 | IAE 2J12611 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 01-022 SODIUM HYDROXIDE NaOH (SOLID) | LOCAL | CoMat 01-022 | ||
| CoMat 01-023 CHROMIUM TRIOXIDE CrO3(CHROM.ACID) | LOCAL | CoMat 01-023 | ||
| CoMat 01-024 BARIUM CHROMATE BaCrO4 | LOCAL | CoMat 01-024 | ||
| CoMat 10-015 TEMPORARY RUST PREVENTIVE | LOCAL | CoMat 10-015 | ||
| CoMat 10-008 DEWATERING OIL (HOT) | LOCAL | CoMat 10-008 | ||
| CoMat 10-014 ANTI-CORROSION INHIBITING FLUID | LOCAL | CoMat 10-014 |
Spares
NONESafety Requirements
NONEProcedure
Use IAE 2J12611 Sling 1 off.
Hang the LP turbine shaft.
Remove the soft dirt and dust. Refer to SPM TASK 70-11-26-300-503.
NOTE
This step is an alternative to Step.Remove the grease using the solvent cleaner.
SUBTASK 72-50-41-110-053 Remove the Grease
Remove the soft dirt and dust. Refer to SPM TASK 70-11-03-300-503.
CAUTION
WIPE ALL WATER AFTER CLEANING PGW PREVENTING RUST ON LPT SHAFT.NOTE
This step is an alternative to Step.Remove the grease using the solvent cleaner.
SUBTASK 72-50-41-110-061 Remove the Grease
Remove the paint. Refer to SPM TASK 70-11-05-300-503.
Remove the paint using the inorganic chemical method.
SUBTASK 72-50-41-110-054 Remove the Paint
NOTE
If necessary, do StepRemove the scale. Refer to SPM TASK 70-11-15-300-503.
CAUTION
DO NOT SOAK THE SHAFT IN SOLUTION IN THIS SUBTASK, WHEN THE PARTS HAVE BEEN REPAIRED BY ELECTROPLATING OR METAL SPRAYING.Remove the rust and the scale using the inorganic chemical method.
SUBTASK 72-50-41-110-055 Remove the Rust and the Scale
Apply the rust preventive fluid. Refer to SPM TASK 70-38-05-380-501.
Temporarily apply the rust preventive fluid.
SUBTASK 72-50-41-620-051 Temporarily apply the Inhibitor Fluid