DMC:V2500-00-70-31-20-00A-252A-DIssue No:001.00Issue Date:2013-03-20
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 70-31-20-310-501 Procedure To Prepare Surface For Brazing
NOTE
To identify the consumable materials, refer to the PCI.
NOTE
Abrasives must be clean and always used for equivalent work.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 05-166 GLASS BEAD | 04UX7 | CoMat 05-166 | ||
| CoMat 05-179 STAINLESS STEEL GRIT | 63585 | CoMat 05-179 | ||
| CoMat 05-180 SILICON CARBIDE ABRASIVE | 84330 | CoMat 05-180 | ||
| CoMat 05-238 FLAPPER WHEEL, ABRASIVECLOTH | LOCAL | CoMat 05-238 |
Spares
NONESafety Requirements
WARNING
IT IS THE RESPONSIBILITY OF THE OPERATOR TO OBTAIN AND OBSERVE THE MANUFACTURER'S MATERIAL SAFETY DATA SHEETS FOR CONSUMABLE MATERIALS INFORMATION SUCH AS, HAZARDOUS INGREDIENTS, PHYSICAL/CHEMICAL CHARACTERISTICS, FIRE, EXPLOSION, REACTIVITY, HEALTH HAZARD DATA, PRECAUTIONS FOR SAFE HANDLING, USE AND CONTROL MEASURES AND ALSO TO TAKE LOCAL REGULATIONS INTO CONSIDERATION.
CAUTION
THIS PROCEDURE IS NOT APPROVED FOR GENERAL CLEANING BEFORE FLUORESCENT PENETRANT INSPECTION BECAUSE THE CONSUMABLE MATERIALS USED IN STEP 3.A.(3) CAN MASK CRACKS.
CAUTION
DO NOT USE TITANIUM-TYPE OR ALUMINUM OXIDE-TYPE ABRASIVES (SUCH AS, IN THE USUAL EMERY CLOTH OR ALUMINUM OXIDE BLASTING) ON THE SURFACE TO BE BRAZED. TITANIUM OR ALUMINUM IN ANY FORM HAS A BAD EFFECT ON THE MOLTEN BRAZE METAL FLOW.
CAUTION
ENTRAPMENT OF ABRASIVES CAN CAUSE DAMAGE TO PARTS.
Procedure
Wet abrasive blast. Refer to the SPM TASK 70-12-08-300-503.
Wet abrasive blast. Refer to the SPM TASK 70-12-12-300-503.
Use a 3 inch (76.2 mm) diameter, silicon carbide 80 grit abrasive cloth flapper wheel (CoMat 05-238 FLAPPER WHEEL, ABRASIVECLOTH) to remove light oxidation from the part.
SUBTASK 70-31-20-310-001 Remove Light Oxidation from the Part
Clean the area to be brazed. Refer to the SPM TASK 70-11-26-300-503.
SUBTASK 70-31-20-310-002 Clean the Area to be Brazed