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 72-32-21-300-006 No. 3 Bearing Housing - Plasma Spray Repair The Inside Diameter (ID), Repair-006 (VRS3286)
General
Price and availability - refer to IAE
The practices and processes referred to in this procedure by TASK numbers are in the SPM.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-074 PLASMA SPRAY POWDER | LOCAL | CoMat 03-074 | ||
| CoMat 03-075 PLASMA SPRAY POWDER | 33870 | CoMat 03-075 | ||
| CoMat 03-091 PLASMA SPRAY POWDER | 60097 | CoMat 03-091 |
Spares
NONESafety Requirements
NONEProcedure
Refer to the SPM TASK 70-11-06-300-503 or SPM TASK 70-11-26-300-503.
Clean unwanted particles from the housing.
SUBTASK 72-32-21-120-052 Clean the No. 3 Bearing Housing
Refer to Figure.
Machine Diameter A sufficiently to permit a coating thickness of 0.003 to 0.012 in. (0.076 to 0.305 mm) on each side after finish machining.
SUBTASK 72-32-21-320-051 Machine the ID of the No. 3 Bearing Housing
Refer to Figure. Use CoMat 03-074 PLASMA SPRAY POWDER, CoMat 03-075 PLASMA SPRAY POWDER or CoMat 03-091 PLASMA SPRAY POWDER. Refer to the SPM TASK 70-34-03-340-501. No plasma spray is permitted outside the enclosed areas. Plasma spray is optional on the chamfer.
Apply plasma spray to the ID of the housing.
SUBTASK 72-32-21-340-051 Apply Plasma Spray to the ID of the No. 3 Bearing Housing
Refer to Figure. Machine the diameter to 8.3859 to 8.3869 in. (213.002 to 213.027 mm).
Machine the ID after plasma spray.
SUBTASK 72-32-21-320-052 Machine the ID of the No. 3 Bearing Housing after Plasma Spray
Refer to Figure.
NOTE
If the measured diameter in a free condition is not satisfactory, a held condition is permitted. The dimension applies when Diameter A is round by 0.001 in. (0.25 mm) and Surface B is flat by 0.001 in. (0.025 mm). Hold the housing only on Diameter A and Surfaces B and G.
Examine the housing after plasma spray and finish machining.
SUBTASK 72-32-21-220-081 Examine the Repair
Figure: No. 3 bearing housing ID plasma spray repair
No. 3 bearing housing ID plasma spray repair
