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 72-60-29-300-044 Deoiler Gear Housing - Replace the Damaged Or Loose Helicoil Inserts In The Deoiler Housing, Repair-044 (VRS5674)
General
Price and availability - none.
The practices and processes referred to in the procedure by the TASK numbers are in the SPM.
Tools for removal and installation may be purchased from Helicoil Product Division/Mite Corporation, Danbury, Connecticut 06108, USA.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Extracting tool 1227-6 | LOCAL | Extracting tool 1227-6 | ||
| Break-off tool 3695-4 | LOCAL | Break-off tool 3695-4 | ||
| Inserting tool 7552-4 | LOCAL | Inserting tool 7552-4 |
Consumables, Materials and Expendables
NONESpares
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Helicoil insert | 0AM53 | MS21209F4-20L | AR | FIG/ITEM 01-430 |
Safety Requirements
NONEProcedure
Refer to Figure.
Drive the extracting tool into the insert at approximately a quarter of a coil from the end of the insert .
Apply the extracting tool into the insert.
Hit the head of the tool lightly to dig the blade into the top of the coil of the insert.
Use a hammer.
Arrange the extracting tool into the insert.
Bearing down hard on the handle of the tool.
Turn the tool slowly counterclockwise.
Maintain a hard pressure on the handle when the insert backs out.
Complete the removal of the insert.
SUBTASK 72-60-29-350-089 Remove the Insert
Do the touch up process if the anodic treatment has been damaged by insert removal.
Refer to SPM TASK 70-38-02-300-503.
Check the surface.
SUBTASK 72-60-29-330-087 Restore the Damaged Anodic Treatment
Refer to Figure.
Put the new helicoil insert on the tip of the inserting tool.
Put the insert on the tool.
Put the tool with the new helicoil insert into the threaded hole.
Put the tool with the insert.
Install the new helicoil insert into the hole.
Turn the handle clockwise. Install the helicoil 1 to 1.5 pitch below surface.
Install the insert into the hole.
Break the insert tang off at notch.
Use a tang break-off tool.
Remove broken tangs from blind holes with a magnetized rod.
Break the tangs.
SUBTASK 72-60-29-350-090 Install the New Insert
Do the touch up process if the anodic treatment has been damaged by insert installation.
Refer to SPM TASK 70-38-02-300-503.
Check the surface.
SUBTASK 72-60-29-330-088 Restore the Damaged Anodic Treatment
Refer to SPM TASK 70-23-01-230-501.
Do a crack test on the repaired area.
SUBTASK 72-60-29-230-057 Crack Test the Repaired Area
Refer to SPM TASK 70-23-01-230-501.
Do an inspection of the new helicoil insert.
SUBTASK 72-60-29-220-195 Inspect the Insert
Figure: Replace Damaged or Loose Helicoil Inserts
Replace Damaged or Loose Helicoil Inserts
