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 72-32-94-300-003 PTO Shaft Oil Seal Tube - Repair The Snap Diameter By Plasma Spray, Repair-003 (VRS1451)
Material of component
PART IDENT | SYMBOL | MATERIAL |
|---|---|---|
Oil seal tube assembly (For 5A2137) | Titanium alloy | |
Oil seal tube assembly (For 5A1434) | Corrosion and heat resistant steel |
General
Price and availability - refer to IAE
The practices and processes referred to in this procedure by TASK numbers are in the SPM.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Grit blast equipment | LOCAL | Grit blast equipment | ||
| Machining equipment | LOCAL | Machining equipment | ||
| Plasma spray equipment | LOCAL | Plasma spray equipment | ||
| Workshop inspection equipment | LOCAL | Workshop inspection equipment | ||
| Fluorescent Penetrant Inspection Equipment | LOCAL | Fluorescent penetrant inspection equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-091 PLASMA SPRAY POWDER | 60097 | CoMat 03-091 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
SUBTASK 72-32-94-320-051 Machine the Snap Diameter of the Oil Seal Tube Assembly
Refer to Figure.
Do the penetrant procedure given in the SPM TASK 70-23-05-230-501.
No cracks permitted.
Use fluorescent penetrant inspection equipment.
Examine the machined area for cracks.
SUBTASK 72-32-94-230-055 Examine the Snap Diameter of the Oil Seal Tube Assembly for Cracks
Refer to Figure.
Do the procedure given in the SPM TASK 70-11-03-300-503.
Clean the oil seal tube.
Do the procedure given in the SPM TASK 70-34-03-340-501 (SUBTASK 70-34-03-380-001).
Mask the oil seal tube.
Do the procedure given in the SPM TASK 70-34-03-340-501 (SUBTASK 70-34-03-380-001.
No grit blast is permitted in the fillet area.
Grit blast the repair area to get a constant rough surface.
Use grit blast equipment.
Grit blast the snap diameter of the oil seal tube.
SUBTASK 72-32-94-380-051-A00 Prepare the Snap Diameter of the Oil Seal Tube for Plasma Spray Coat, (For P/N 5A2137, titanium alloy)
Refer to Figure.
Do the procedure given in the SPM TASK 70-11-03-300-503.
Clean the oil seal tube.
Do the procedure given in the SPM TASK 70-34-03-340-501.
Mask the oil seal tube.
Do the procedure given in the SPM TASK 70-34-03-340-501 (SUBTASK 70-34-03-380-001).
No grit blast is permitted in the fillet area.
Use grit blast equipment.
Grit blast the snap diameter of the oil seal tube.
SUBTASK 72-32-94-380-051-B00 Prepare the Snap Diameter of the Oil Seal Tube for Plasma Spray Coat, (For P/N 5A1434 and 5A1435, non-titanium parts)
Refer to Figure
Do the procedure given in the SPM TASK 70-34-03-340-501.
Apply the plasma spray coating to a sufficient thickness which will permit the final machining.
No overspray is permitted in the fillet area.
Use plasma spray equipment.
The maximum thickness of the plasma spray is 0.020 in. (0.50 mm).
Plasma spray the snap diameter.
SUBTASK 72-32-94-340-051 Plasma Spray Coat the Snap Diameter of the Oil Seal Tube
Refer to Figure.
SUBTASK 72-32-94-320-052 Machine the Snap Diameter of the Oil Seal Tube after Plasma Spray
Refer to Figure.
Do the inspection procedure given in the SPM TASK 70-34-03-340-501.
Examine the coated area for chips, cracks, lifted material, coating that is not attached to the base metal and surfaces that show heat cracks.
Refer to Figure.
Measure the snap diameter.
SUBTASK 72-32-94-220-064 Examine the Repaired Area
Mark the part by the procedure given in the SPM TASK 70-09-00-400-501.
Use the shallow electrolytic etch method.
Make a mark VRS1451 adjacent to the part number.
SUBTASK 72-32-94-350-053 Identify the Repair
Figure: Oil seal assembly snap diameter repair area - Machine before plasma spray coating (For 5A2137)
Sheet 1
Figure: Oil seal assembly snap diameter repair area - Machine before plasma spray coating (For 5A1434)
Sheet 2
Figure: Oil seal assembly snap diameter repair area - Plasma spray area (For 5A2137)
Sheet 1
Figure: Oil seal assembly snap diameter repair area - Plasma spray area (For 5A1434)
Sheet 2
Figure: Oil seal assembly snap diameter repair area - Machine the plasma spray coat (For 5A2137)
Sheet 1
Figure: Oil seal assembly snap diameter repair area - Machine the plasma spray coat (For 5A1434)
Sheet 2
