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 79-11-41-300-007 Oil Tank - Related Parts - Replace The Damaged or Loose Helicoil Inserts In The Deaerator Assembly, Repair-007 (VRS5208)
General
Price and availability - none.
The practices and processes referred to in the procedure by the TASK numbers are in the SPM.
NOTE
Tools for removal and installation may be purchased from Heli-Coil Product Division/Mite Corporation, Danbury, Connecticut 06108.
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
NONESafety Requirements
NONEProcedure
Refer to Figure.
Drive the Extracting Tool (1227-6) 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 (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 as the insert backs out.
Complete the removal of the insert.
SUBTASK 79-11-41-350-058 Remove the Damaged Helicoil Insert
Refer to SPM TASK 70-38-02-300-503.
Do the touch up process if the anodic treatment has been damaged by helicoil insert removal.
Check the surface.
SUBTASK 79-11-41-350-059 Repair the Damaged Anodic Treatment
Refer to Figure.
Put the new helicoil insert on the tip of the 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 the surface.
Install the insert into the hole.
Break the insert tang off at notch.
Use a tang Break-Off Tool (3695-4) tool Remove broken tangs from blind holes with a magnetized rod.
Break the tangs.
SUBTASK 79-11-41-350-093 Install the Helicoil Insert
Do the touch up process if the anodic treatment has been damaged by helicoil insert installation.
Refer to SPM TASK 70-38-02-300-503.
Check the surface.
SUBTASK 79-11-41-350-094 Repair the Damaged Anodic Treatment
Refer to SPM TASK 70-23-01-230-501.
Do a crack text on the repaired area.
SUBTASK 79-11-41-230-058 Do a crack test on the Repaired Area
Refer to SPM TASK 70-35-08-300-501.
Do an inspection of the new helicoil inserts.
SUBTASK 79-11-41-220-095 Do an Inspection of the Helicoil Inserts
Figure: Replace the Damaged or loose Helicoil Inserts
Replace the Damaged or loose Helicoil Inserts
