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 71-00-02-400-012 (A1/A5-PPBU) - Install The Integrated Drive Generator (IDG) And IDG QAD Coupling, Installation-012
General
Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.
For all parts identified in a different Chapter/Section/Subject, the applicable Chapter/Section/Subject comes before the Fig/item number.
For standard torque data and procedures, refer to SPM TASK 70-41-00-400-501 and SPM TASK 70-41-02-400-501.
Special torque data and assembly tolerances are included in the procedure.
Lubricate all threads and abutment faces of nuts and bolts with CoMat 10-077 APPROVED ENGINE OILS, unless other lubricants are referred to in the procedure.
To identify, lubricate and install seal rings, refer to SPM TASK 70-44-01-400-501.
Lightly lubricate the threads and abutment faces of the hydraulic system tube/hose nuts, unions and couplings with the hydraulic fluid used in the aircraft hydraulic system.
After assembly apply CoMat 07-012 AIR DRYING ENAMEL air drying touch-up enamel to any damaged surface protection, joint flanges and attach parts. Use the correct color of the air drying enamel. Refer to SPM TASK 70-38-06-380-501.
Transportation covers/blanks must be removed immediately before the installation of the components.
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Removal/Installation Tool | LOCAL | S888IDG |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-126 LOCKWIRE | LOCAL | CoMat 02-126 | ||
| CoMat 07-012 AIR DRYING ENAMEL | 0AM53 | CoMat 07-012 | ||
| CoMat 10-077 APPROVED ENGINE OILS | LOCAL | CoMat 10-077 | ||
| CoMat 10-094 ANTI-SEIZE COMPOUND, PURE Ni-SPECIAL | LOCAL | CoMat 10-094 | ||
| CoMat 02-147 LOCKWIRE | LOCAL | CoMat 02-147 |
Spares
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Gasket | 1 | |||
| Packing | 1 | |||
| Packing | 1 | |||
| Packing | 1 | |||
| Packing | 1 |
Safety Requirements
NONEProcedure
Refer to Figure.
Install the new ELECTRICAL POWER-IDG QAD COUPLING (24-21-41, 01-020) gasket 1 off to the gearbox accessory mounting pad.
Apply CoMat 10-094 ANTI-SEIZE COMPOUND, PURE Ni-SPECIAL and install the QAD attaching bolts ELECTRICAL POWER-IDG QAD COUPLING (24-21-41, 01-030) 8 off.
SUBTASK 71-00-02-450-022 Install the IDG QAD Coupling
Refer to Figure.
Lightly lubricate the new packing ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-114) with CoMat 10-077 APPROVED ENGINE OILS and install it on the coupling ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-110). Install the coupling in the IDG and torque to 320 to 370 lbf.in (36.2 to 41.8 Nm).
Lightly lubricate the new packing ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-506) with CoMat 10-077 APPROVED ENGINE OILS and install it on the coupling ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-502). Install the coupling in the IDG and torque to 300 to 350 lbf.in (33.9 to 39.5 Nm).
Safety the couplings ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-110) and ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-502) with CoMat 02-126 LOCKWIRE. Refer to SPM TASK 70-42-05-400-501.
Lightly lubricate the new packing ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-045) with CoMat 10-077 APPROVED ENGINE OILS and put it on the overflow drain valve ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-050). Install the overflow drain valve on the IDG and torque 280 to 305 lbf.in (31.6 to 34.5 Nm). Put the dust cap ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-040) on the overflow drain valve.
Lightly lubricate the new packing ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-058) with CoMat 10-077 APPROVED ENGINE OILS and put it on the pressure-fill valve ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-060). Install the pressure-fill valve on the IDG and torque 120 to 150 lbf.in (13.6 to 16.9 Nm). Put the dust cap ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-055) on the overflow drain valve.
Safety the overflow drain valve and the pressure-fill valve with CoMat 02-147 LOCKWIRE. Refer to SPM TASK 70-42-05-400-501.
SUBTASK 71-00-02-450-013 Install the IDG Cooling Tubes Overflow, Pressure Couplings, Overflow Drain Valves and Pressure-Fill Valve
Refer to Figure.
Install the IDG Removal/Installation Tool 1 off.
Install new ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-020 and ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR 24-21-51, 01-030) packings on to the IDG.
Lubricate these components with CoMat 10-077 APPROVED ENGINE OILS.
- the packing ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-020).
- the packing ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-030).
- the IDG drive shaft.
- the QAD coupling.
Safety the QAD coupling with CoMat 02-126 LOCKWIRE.

CAUTION
INSTALL THE IDG IN A STRAIGHT LINE. THE INPUT SHAFT CAN CATCH AND CAUSE DAMAGE TO THE INPUT SHAFT SEAL.
CAUTION
DO NOT USE EXTERNAL PARTS OR TOOLS TO ALIGN THE IDG ON THE GEARBOX. THEY CAN CAUSE DAMAGE TO THE IDG AND THE GEARBOX.
CAUTION
MAKE SURE THAT THE IDG INPUT SHAFT DOES NOT HANG ON THE GEARBOX OUTPUT SHAFT. DAMAGE TO THE SHAFTS AND THE SEALS CAN OCCUR.Install the IDG as follows:
Install the IDG wire harness. Refer to TASK 72-00-32-420-004-A00, TASK 72-00-32-420-004-B00, TASK 72-00-32-420-004-C00 or TASK 72-00-32-420-004-D00.
SUBTASK 71-00-02-450-023 Install the Integrated Drive Generator
Figure: Installation of the Integrated Drive Generator
Installation of the Integrated Drive Generator

Figure: Installation of the IDG QAD Coupling
Installation of the IDG QAD Coupling

