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 72-60-28-300-006 Generator Drive Gear Housing - Replace The Damaged Studs, Repair-006 (VRS5059)
General
Price and availability - none
The practices and processes referred to in the procedure by the TASK numbers are in the SPP.
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| SM101-18 Removal tool | LOCAL | SM101-18 Removal tool | ||
| R1105W Wrench | LOCAL | R1105W Wrench | ||
| S101D12 Drive tool | LOCAL | S101D12 Drive tool |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 10-048 LUBRICANT | 0AM53 | CoMat 10-048 |
Spares
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Lock ring | MS51990E-105P | A/R | ||
| Stud | MS51551C205-9 | A/R |
Safety Requirements
NONEProcedure
Refer to Figure.
Lower drill press above stud shank before starting motor. Use SM101-18 Removal tool 1 off for lock ring Generator Drive Gear And Housing Assembly (72-60-28, 01-470).
Cut off stud if too long for the removal tool.
Keep sufficient shank length to give pilot for the removal tool.
Install the removal tool in drill press chuck.
SUBTASK 72-60-28-320-055 Mill the Lock Ring
Refer to Figure.
The depth is given in Figure.
Stud must be perpendicular to flat surface of relevant flange within 0.014 in. (0.35 mm) each 4.000 in. (101.60 mm).
Use R1105W Wrench 1 off for stud Generator Drive Gear And Housing Assembly (72-60-28, 01-490).
Install the stud.
SUBTASK 72-60-28-350-058 Install the New Stud
Refer to Figure.
Seat the new lock ring to depth given in Figure.
Use S101D12 Drive tool 1 off for lock ring Generator Drive Gear And Housing Assembly (72-60-28, 01-470).
Seat the new lock ring.
SUBTASK 72-60-28-350-059 Install the Lock Ring
Do the touch up process if the anodic treatment has been damaged by stud installation.
Refer to the SPM TASK 70-38-02-300-503.
Check the surface.
SUBTASK 72-60-28-330-055 Restore the Damaged Anodic Treatment
Refer to the SPM TASK 70-23-01-230-501.
Do a crack test on the repaired area.
SUBTASK 72-60-28-230-053 Crack Test the Repaired Area
Figure: Repair Details and Dimension
Repair Details and Dimension

