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 72-60-41-300-017 Replace The Damaged Or Loose Helicoil Inserts In The Angle Gearbox Casing, Repair-017 (VRS5694)
The practices and processes referred to in the procedure by the TASK numbers are in the SPM.
Equipment and material
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Extracting tool 1227-6 | LOCAL | Extracting tool 1227-6 | ||
| Breakoff tool 3695-4 | LOCAL | Breakoff 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 | A/R | 01-370 |
| Helicoil insert | 0AM53 | MS21209F4-20L | A/R | 01-390 |
| Helicoil insert | 0AM53 | MS21209F4-20L | A/R | 01-410 |
| Helicoil insert | 0AM53 | MS21209F4-20L | A/R | 01-430 |
| Helicoil insert | 0AM53 | MS21209F4-20L | A/R | 01-450 |
| Helicoil insert | 0AM53 | MS21209F4-20L | A/R | 01-470 |
| Helicoil insert | 0AM53 | MS21209F4-20L | A/R | 01-510 |
| Helicoil insert | 0AM53 | MS21209F4-20L | A/R | 01-530 |
| Helicoil insert | 0AM53 | MS21209F4-20L | A/R | 01-550 |
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 Extracting tool 1227-6 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 Extracting tool 1227-6 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 72-60-41-350-025 Remove the Insert
Do the touch-up process. Refer to SPM TASK 70-38-02-300-503.
Check the surface.
SUBTASK 72-60-41-330-090 Restore the Damaged Anodic Treatment
Refer to Figure.
Put the new helicoil insert on the tip of Inserting tool 7552-4.
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 Breakoff tool 3695-4.
Remove broken tangs from the blind holes with a magnetized rod.
Break the tangs.
SUBTASK 72-60-41-350-026 Install the New Insert
Do the touch-up process if the anodic treatment has been damaged by insert installation at the surface.
Refer to SPM TASK 70-38-02-300-503.
Check the surface.
SUBTASK 72-60-41-330-091 Restore the Damaged Anodic Treatment
Refer to SPM TASK 70-35-08-300-501.
Do an inspection of the new helicoil insert.
SUBTASK 72-60-41-220-106 Inspect the Insert
Figure: Replace damaged or loose helicoil inserts
Replace damaged or loose helicoil inserts
