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 79-21-41-300-008 Oil Pressure Pump/Filter Housing - Related Parts - Replace The Damaged or Loose Helicoil Inserts In The Casing Assembly, Repair-008 (VRS5308)
General
NOTE
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 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.
Push down hard on the handle of the tool and turn the tool slowly counterclockwise.
Maintain a hard pressure on the handle as the insert is removed.
Complete the removal of the insert.
SUBTASK 79-21-41-350-058 Remove the Damaged Helicoil Insert
Do the touch up process if the anodic treatment has been damaged by helicoil insert removal.
Refer to SPM TASK 70-38-02-300-503.
Check the surface.
SUBTASK 79-21-41-350-059 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 pitches below the surface.
Install the insert into the hole.
Break the insert tang off at notch.
Use a tang Break-off tool 3695-4.
Remove broken tangs from blind holes with a magnetized rod.
Break the tangs.
SUBTASK 79-21-41-350-060 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 79-21-41-330-057 Restore the Damaged Anodic Treatment
Figure: Repair Details and Dimensions
Repair Details and Dimensions
