Servicing of the Integrated Drive Generator (IDG) after Oil Chemical Contamination

TASK 24-21-00-612-804-A
Servicing of the Integrated Drive Generator (IDG) after Oil Chemical Contamination

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

WARNING: WEAR GOGGLES, INSULATED GLOVES AND OTHER PROTECTIVE CLOTHES. HOT OIL CAN BURN YOUR EYES AND SKIN. IF OIL TOUCHES YOUR EYES OR SKIN, GET MEDICAL AID.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

CAUTION: DO NOT OPERATE THE IDG:

IF IT CONTAINS TOO MUCH OIL
IF IT DOES NOT CONTAIN ENOUGH OIL

IF YOU DO, YOU CAN CAUSE DAMAGE TO THE IDG.

CAUTION: USE ONLY NEW CANS OF OIL WHEN YOU FILL THE IDG WITH OIL OR ADD OIL TO THE IDG. THE CONTAMINATION IN OIL THAT STAYS IN OPEN CANS CAN CAUSE FAST DETERIORATION OF THE OIL AND WILL DECREASE THE LIFE OF THE IDG.

CAUTION: DO NOT USE SOLVENTS THAT CONTAIN CHLORINE TO CLEAN THE EQUIPMENT (PUMP, HOSES, TANK AND FUNNEL) USED TO FILL THE IDG WITH OIL. CHLORINE CONTAMINATION OF THE OIL CAN CAUSE FAST DETERIORATION OF THE OIL AND WILL DECREASE THE LIFE OF THE IDG.

CAUTION: DO NOT DO THE SERVICING OF A DISCONNECTED IDG. CONTINUED OPERATION OF A DEFECTIVE IDG CAN CAUSE DAMAGE.

CAUTION: DO NOT LET ENGINE OIL FALL ON THE ENGINE. UNWANTED OIL MUST BE REMOVED IMMEDIATELY. THE OIL CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.

NOTE: Airbus recommends that you do not do the servicing of more than one IDG at a time.

ZONE: 453
ZONE: 463

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	2	ACCESS PLATFORM 1M(3 FT)
No specific	1	CONTAINER 20L (5 USGAL)
No specific	AR	COVER - PROTECTION
No specific	2	FILLING EQUIPMENT - TANK OIL
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	Torque wrench: range to between 75 and 55 lbf.in (0.85 and 0.62 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.P03-001)	lubricant, aircraft turbine engine
(Material No.P05-289)	Lockwire
(Material No.P05-291)	Safety Cable
(Material No.P05-292)	Safety Cable Ferrule

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
453	HOT SECTION
463	HOT SECTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR, 451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR, 461AL, 462AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	PACKING	AIPC 24-21-51-51-110

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-13-24-612-803-A	Integrated Drive Generator (IDG) Servicing - Filling of the IDG with Oil or Addition of Oil after a Level Check
TASK 24-21-51-000-804-A	Removal of the IDG Oil Charge and Scavenge Filter-Elements
TASK 24-21-51-400-804-A	Installation of the IDG Oil Charge and Scavenge Filter Elements
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 71-00-00-860-814-A	Shutdown of the Engine
TASK 71-00-00-860-823-A	Start the Engine (Normal Automatic Start)
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-805-A	Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-36-00-010-802-A	Opening of the Thrust Reverser Cowl-Doors
TASK 78-36-00-410-802-A	Closing of the Thrust Reverser Cowl-Doors
TASK 20-34-00-00	LIST OF MATERIALS REQUIRED FOR IDG SERVICE AND MAINTENANCE - DESCRIPTION AND OPERATION
IDG Servicing - IDG Drain and Fill Ports
IDG Servicing - IDG Drain Plug

3. Job Set-up
Subtask 24-21-00-861-072-A ** ON A/C NOT FOR ALL

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 24-21-00-941-094-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).

Subtask 24-21-00-865-080-A ** ON A/C NOT FOR ALL

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 4000XU1 (IDGENG 1)
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG1/DISC	1XT	T24
FOR FIN: 4000XU2 (IDGENG 2)
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/IDG2/DISC	2XT	T25

Subtask 24-21-00-010-111-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR

Subtask 24-21-00-040-062-A ** ON A/C NOT FOR ALL

E. Deactivation of the Thrust Reverser System for Ground Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Do the deactivation of the thrust reverser system for ground maintenance (Ref. AMM TASK 78-30-00-040-805).

Subtask 24-21-00-010-112-A ** ON A/C NOT FOR ALL

F. Get Access
(1) Open the thrust-reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.
(3) Installation of the engine protection covers

CAUTION: INSTALL PROTECTION COVERS ON ALL THE OPENINGS IMMEDIATELY TO PREVENT DAMAGE TO THE ENGINE.

(a) Install all the necessary COVER - PROTECTION to prevent damage to the engine.

4. Procedure
Subtask 24-21-00-864-066-A ** ON A/C NOT FOR ALL

A. Depressurization of the IDG Case and Draining of the IDG Oil

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

(1) Find the IDG on the left rear side of the main gearbox.
(2) Find the IDG overfill drain-valve on the rear side of the IDG.
(3) Let the IDG temperature decrease to 120 DEG.F (49 DEG.C) or less before you drain the oil.
(4) Put the CONTAINER 20L (5 USGAL) below the IDG.
(5) Remove the dust covers from the IDG overfill drain-valve and the IDG pressure fill-valve.
(6) Install the overflow drain hose:

WARNING: YOU MUST PUT THE OVERFLOW DRAIN HOSE INTO A CONTAINER BEFORE YOU CONNECT THE DRAIN HOSE TO THE IDG OVERFILL DRAIN VALVE. MAKE SURE THAT THE DRAIN HOSE HANGS DOWN VERTICALLY AND THE END OF THE HOSE IS ABOVE THE OIL LEVEL IN THE CONTAINER. WHEN YOU CONNECT THE OVERFLOW DRAIN HOSE TO THE IDG, YOU RELEASE THE PRESSURE IN THE IDG OIL SYSTEM AND OIL WILL SPRAY FROM THE DRAIN HOSE. THIS WILL PREVENT BURNS FROM THE HOT OIL SPRAY. HOT OIL CAN CAUSE BURNS TO EYES AND SKIN.

CAUTION: DO NOT USE DEVICES OTHER THAN THE APPROVED OVERFLOW DRAIN-HOSE FITTING. HARD METAL OBJECTS SUCH AS SCREWDRIVERS CAN CAUSE DAMAGE TO THE OVERFLOW DRAIN SEAT.

(a) Put the free end of the drain hose in the empty CONTAINER 20L (5 USGAL).
(b) Connect the overflow drain hose with the OMP 2505-3 coupling to the IDG overfill drain-valve.

NOTE: The IDG oil flows through the drain hose during the draining procedure.

NOTE: Some hot pressurized oil can come out of the overflow drain hose when it is connected.

(7) Connect the pressure fill hose with the OMP 2506-3 coupling from the FILLING EQUIPMENT - TANK OIL to the IDG pressure fill-valve.
(8) Find the case drain plug (1) on the bottom right side of the IDG.

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(9) Cut and discard the lockwire from the case drain plug (1).
(10) Remove the case drain plug (1) from the bottom of the IDG.
(11) Let the oil drain and collect it in the CONTAINER 20L (5 USGAL).
(12) Use the FILLING EQUIPMENT - TANK OIL to fill the IDG with P03-001lubricant, aircraft turbine engine and drain the used oil:
(a) Make sure that the filling pressure is not more than 35 psi (2.41 bar).
(13) Continue to fill the IDG with P03-001lubricant, aircraft turbine engine until 1.9 l (0.50 USgal) of oil flows out of the case drain.
(14) Stop the FILLING EQUIPMENT - TANK OIL.
(15) Let the oil drain from the case drain until the flow of oil decreases to drops.
(16) Remove and discard the packing (2).
(17) Disconnect the pressure fill hose.
(18) Disconnect the overflow drain hose.
(19) Install the dust covers on the IDG overfill drain-valve and the IDG pressure fill-valve.

Subtask 24-21-00-920-061-A ** ON A/C NOT FOR ALL

B. Removal the IDG Oil Filter-Elements
(1) Replace the IDG oil scavenge-filter-element with its new packing (Ref. AMM TASK 24-21-51-000-804) and (Ref. AMM TASK 24-21-51-400-804).
(a) Install the new packing into the cap of the IDG oil scavenge-filter-element.
(b) Install the cap of the IDG oil scavenge-filter-element.
(2) Remove and discard the IDG oil charge-filter-element and its packing (Ref. AMM TASK 24-21-51-000-804). Do not install a new IDG oil charge-filter-element and its packing.
(a) Install the new packing into the cap of the IDG oil charge-filter-element (Ref. AMM TASK 24-21-51-400-804).
(b) Install the cap of the IDG oil charge-filter-element (Ref. AMM TASK 24-21-51-400-804).

Subtask 24-21-00-170-050-A ** ON A/C NOT FOR ALL

CAUTION: USE ONLY APPROVED TYPES/BRANDS OF LUBRICANTS. DO NOT MIX TYPES//BRANDS OF LUBRICANTS.

C. Flushing of the IDG

IDG Servicing - IDG Drain and Fill Ports ** ON A/C NOT FOR ALL

NOTE: Approximately 3.8 l (1.00 USgal) to 5.7 l (1.51 USgal) of oil will flow into the CONTAINER 10 L(2 1/2 USGAL).

NOTE: The (Ref. AMM D/O 20-34-00-00) gives a list of approved oil-brand names for the IDG.

(1) Remove the dust cover from the pressure fill valve.
(2) Connect the pressure fill hose with the OMP 2505-3 coupling of the FILLING EQUIPMENT - TANK OIL, to the pressure fill valve.
(a) Fill the IDG with P03-001lubricant, aircraft turbine engine until:

The color of the oil that flows out of the case drain is the same as the color of the oil that you put into the IDG, or
You collect approximately 3.8 l (1.00 USgal) to 5.7 l (1.51 USgal) of oil from the case drain.

Subtask 24-21-00-640-067-A ** ON A/C NOT FOR ALL

D. Lubrication of the Expendable Part
(1) Apply P03-001lubricant, aircraft turbine engine to the new AIPC 24-21-51-51-110 PACKING (2) of the case drain plug.

Subtask 24-21-00-420-091-A ** ON A/C NOT FOR ALL

E. Installation of the Case Drain Plug on the IDG

IDG Servicing - IDG Drain Plug ** ON A/C NOT FOR ALL

(1) Install the packing (2) on the case drain plug (1).
(2) Install the case drain plug (1) on the IDG.
(3) TORQUE the case drain plug (1) to between 75 and 55 lbf.in (0.85 and 0.62 m.daN )

.
(4) Safety the case drain plug (1) with Lockwire (Material No.P05-289) or Safety Cable (Material No.P05-291) and Safety Cable Ferrule (Material No.P05-292) .

Subtask 24-21-00-612-092-A ** ON A/C NOT FOR ALL

F. Filling of the IDG with Oil
(1) Fill the IDG with oil (Ref. AMM TASK 12-13-24-612-803).

Subtask 24-21-00-410-120-A ** ON A/C NOT FOR ALL

G. Put the aircraft back to its initial configuration.
(1) Removal of the engine protection covers

CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.

(a) Remove all the COVER - PROTECTION.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Close the thrust-reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR

Subtask 24-21-00-440-064-A ** ON A/C NOT FOR ALL

H. Do the reactivation of the thrust reverser system after ground maintenance (Ref. AMM TASK 78-30-00-440-805).

Subtask 24-21-00-410-121-A ** ON A/C NOT FOR ALL

I. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Remove the WARNING NOTICE(S).

Subtask 24-21-00-865-082-A ** ON A/C NOT FOR ALL

J. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 4000XU1 (IDGENG 1)
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG1/DISC	1XT	T24
FOR FIN: 4000XU2 (IDGENG 2)
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/IDG2/DISC	2XT	T25

Subtask 24-21-00-710-072-A ** ON A/C NOT FOR ALL

K. Operation of the Engine
(1) Start the related engine (Ref. AMM TASK 71-00-00-860-823) and let it operate until the temperature of the IDG oil is 175 deg.F (79.44 deg.C).
(a) Read the oil temperature on the ELEC page of the lower ECAM DU.
(2) Stop the engine (Ref. AMM TASK 71-00-00-860-814).

Subtask 24-21-00-865-083-A ** ON A/C NOT FOR ALL

L. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 4000XU1 (IDGENG 1)
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG1/DISC	1XT	T24
FOR FIN: 4000XU2 (IDGENG 2)
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/IDG2/DISC	2XT	T25

Subtask 24-21-00-010-124-A ** ON A/C NOT FOR ALL

M. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR

Subtask 24-21-00-040-067-A ** ON A/C NOT FOR ALL

N. Deactivation of the Thrust Reverser System for Ground Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Do the deactivation of the thrust reverser system for ground maintenance (Ref. AMM TASK 78-30-00-040-805).

Subtask 24-21-00-010-125-A ** ON A/C NOT FOR ALL

O. Get Access
(1) Open the thrust-reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.
(3) Installation of the engine protection covers

CAUTION: INSTALL PROTECTION COVERS ON ALL THE OPENINGS IMMEDIATELY TO PREVENT DAMAGE TO THE ENGINE.

(a) Install all the necessary COVER - PROTECTION to prevent damage to the engine.

Subtask 24-21-00-680-071-A ** ON A/C NOT FOR ALL

P. Depressurization of the IDG Case, Draining of the Oil, Replacement of the IDG Oil Scavenge-Filter-Element, Lubrication of the Expendable Part and Installation of the Case Drain Plug
(1) Depressurize the IDG case and drain the oil from the IDG.
(a) Do steps 4.A again.
(2) Replace the IDG oil scavenge-filter-element (Ref. AMM TASK 24-21-51-000-804) and (Ref. AMM TASK 24-21-51-400-804).
(a) Install a new IDG oil charge-filter-element, the new packing and the cap (Ref. AMM TASK 24-21-51-400-804).
(3) Lubricate the expendable part and install the case drain plug (1) on the IDG.
(a) Do steps 4.D and 4.E again.

Subtask 24-21-00-612-094-A ** ON A/C NOT FOR ALL

Q. Fill the IDG with oil or add oil to the IDG after a level check (Ref. AMM TASK 12-13-24-612-803).

5. Close-up
Subtask 24-21-00-410-110-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Removal of the engine protection covers

CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.

Subtask 24-21-00-440-059-A ** ON A/C NOT FOR ALL

B. Reactivation of the Thrust Reverser System after Ground Maintenance
(1) Do the reactivation of the thrust reverser system after ground maintenance (Ref. AMM TASK 78-30-00-440-805).

Subtask 24-21-00-410-111-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Remove the WARNING NOTICE(S).

Subtask 24-21-00-865-081-A ** ON A/C NOT FOR ALL

D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 4000XU1 (IDGENG 1)
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG1/DISC	1XT	T24
FOR FIN: 4000XU2 (IDGENG 2)
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/IDG2/DISC	2XT	T25

Subtask 24-21-00-862-071-A ** ON A/C NOT FOR ALL

E. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.03.31 23:19:54 UTC