Draining of the Oil from the Integrated Drive Generator (IDG)

TASK 12-13-24-680-802-A
Draining of the Oil from the Integrated Drive Generator (IDG)

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 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.

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 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.

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

ZONE: 435
ZONE: 436
ZONE: 445
ZONE: 446

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

REFERENCE	QTY	DESIGNATION
No specific	1	CONTAINER 10 L(2 1/2 USGAL)
No specific	1	CONTAINER 20L (5 USGAL)
No specific	AR	COVER - PROTECTION
No specific	1	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
435	FAN AND ACCESSORY GEARBOX
436	FAN AND ACCESSORY GEARBOX
445	FAN AND ACCESSORY GEARBOX
446	FAN AND ACCESSORY GEARBOX
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 24-21-00-612-804-A	Servicing of the Integrated Drive Generator (IDG) after Oil Chemical Contamination
TASK 24-21-00-612-804-A-01	Servicing of the IDG after Oil Contamination and Extension of the Oil Filter Differential Pressure Indicator (DPI)
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 71-00-00-860-833-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
IDG Servicing - IDG Drain Plug
IDG SERVICING - IDG DRAIN AND FILL PORTS

3. Job Set-up
Subtask 12-13-24-861-061-A ** ON A/C NOT FOR ALL

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

Subtask 12-13-24-865-054-A ** ON A/C NOT FOR ALL

B. 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 12-13-24-941-070-A ** ON A/C NOT FOR ALL

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

Subtask 12-13-24-010-066-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 12-13-24-040-057-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 12-13-24-010-069-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) 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 12-13-24-680-063-A ** ON A/C NOT FOR ALL

A. 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) Let the IDG temperature decrease to 120 DEG.F (49 DEG.C) or less before you drain the oil.
(3) Find the IDG overfill drain-valve on the rear side of the IDG.
(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 pressurized hot 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 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 drain plug (1).
(10) Remove the drain plug (1) from the bottom of the IDG.
(11) Let the oil drain and collect it in the CONTAINER 10 L(2 1/2 USGAL).
(12) Use the FILLING EQUIPMENT - TANK OIL to fill the IDG with new P03-001lubricant, aircraft turbine engine and to 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 flow 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.
(a) Do the servicing of the IDG after oil chemical contamination (Ref. AMM TASK 24-21-00-612-804) if:

You smell fuel from the drained oil.
The oil condition is unsatisfactory.

(16) 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 12-13-24-420-069-A ** ON A/C NOT FOR ALL

B. Installation of the Drain Plug on the IDG

(1) Apply P03-001lubricant, aircraft turbine engine to the new AIPC 24-21-51-51-110 PACKING (2).
(2) Install the new packing (2) on the drain plug (1).
(3) Install the drain plug (1) on the IDG.
(4) TORQUE the drain plug (1) to between 75 and 55 lbf.in (0.85 and 0.62 m.daN )

.
(5) Safety the 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 12-13-24-865-055-A ** ON A/C NOT FOR ALL

C. 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

5. Close-up
Subtask 12-13-24-410-069-A ** ON A/C NOT FOR ALL

A. Close Access
(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 12-13-24-440-058-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 12-13-24-410-066-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 12-13-24-862-061-A ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.04.01 05:40:56 UTC