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

TASK 24-21-00-612-043-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: DO NOT LET ENGINE OIL FALL ON THE ENGINE. UNWANTED OIL MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH THE OIL CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.

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.

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
You must do this procedure to clean the IDG and the external lines.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	CONTAINER 10 L(2 1/2 USGAL)
No specific	1	FILLING EQUIPMENT - TANK OIL
No specific	AR	HOSE - DRAIN
No specific	AR	WARNING NOTICE(S)
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.CP8001)	lockwire 0.032 in. (0.8 mm) dia.
(Material No.CP8002)	lockwire 0.032 in. (0.8 mm) dia
(Material No.03ABA1)	Synthetic base Lubricating Oil-Turbine Engine - -

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 [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	O-RING	AIPC 24-21-51-02-020

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-13-24-612-041-A	Integrated Drive Generator (IDG) Servicing - Filling of the IDG with Oil or Addition of Oil after a Level Check
TASK 24-21-51-000-041-A	Removal of the IDG Oil Filter(s)
TASK 24-21-51-400-041-A	Installation of the IDG Oil Filter(s)
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 71-00-00-710-006-A	Minimum Idle Check
TASK 71-00-00-710-028-A	Engine Shutdown
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
TASK 78-30-00-081-041-A	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-A	Make the Thrust Reverser Unserviceable for Maintenance
TASK 20-34-00-00	LIST OF MATERIALS REQUIRED FOR IDG SERVICE AND MAINTENANCE - DESCRIPTION AND OPERATION
Servicing of IDG after Oil Chemical Contamination

3. Job Set-up
Subtask 24-21-00-861-059-A ** ON A/C NOT FOR ALL

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

Subtask 24-21-00-941-053-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) in position to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize the FADEC 1(2).

Subtask 24-21-00-010-060-A ** ON A/C NOT FOR ALL

C. Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

Subtask 24-21-00-481-055-A ** ON A/C NOT FOR ALL

D. Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-481-041).

4. Procedure
Subtask 24-21-00-864-050-A ** ON A/C NOT FOR ALL

A. Depressurization of the IDG Case
(1) Let the IDG temperature decrease to 120 DEG.F (49 DEG.C) or less before you drain the oil.

WARNING: POINT THE OVERFLOW DRAIN HOSE INTO A CONTAINER WHEN YOU CONNECT THE HOSE TO THE OVERFLOW DRAIN HALF-COUPLING. 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 HALF-COUPLING SEAT.

CAUTION: MAKE SURE YOU CONNECT THE HOSE OF THE OVERFLOW DRAIN HALF- COUPLING CORRECTLY. THIS HOSE LETS THE OIL IN THE IDG DRAIN TO THE CORRECT LEVEL. IF THERE IS TOO MUCH OIL IN THE IDG THE IDG WILL BECOME TOO HOT.

(2) Put the CONTAINER 10 L(2 1/2 USGAL) (9) below the IDG (6).
(3) Remove the dust cap (4) from the overflow drain half-coupling (5).
(4) Put the end of the HOSE - DRAIN (10) of the FILLING EQUIPMENT - TANK OIL in the CONTAINER 10 L(2 1/2 USGAL) (9).
(5) Do this step to depressurize the IDG case:
(a) Connect the overflow drain hose (10) of the FILLING EQUIPMENT - TANK OIL to the overflow drain half-coupling (5).

NOTE: Some oil can come out of the overflow drain hose (10) of the FILLING EQUIPMENT - TANK OIL when you connect it.

Subtask 24-21-00-680-050-B ** ON A/C NOT FOR ALL

B. Draining of the IDG Oil

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.

(1) Cut and discard the lockwire from the case drain plug (1).

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

(2) Remove the case drain plug (1).
(3) Remove and discard the O-ring (2).
(4) Drain the oil.
(5) Remove the dust cap (3) from the pressure fill half-coupling (7).
(6) Connect the pressure fill hose (8) of the FILLING EQUIPMENT - TANK OIL to the pressure fill half-coupling (7).
(7) Use the FILLING EQUIPMENT - TANK OIL to fill the IDG (6) with new Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) and drain the used oil:
(a) Make sure that the filling pressure is not more than 2.41 bar (34.95 psi).
(8) Continue to fill the IDG (6) with Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) until 1.85 l (0.49 USgal) of oil flows out of the case drain.
(9) Stop the FILLING EQUIPMENT - TANK OIL.
(10) Let the oil drain from the case drain until the flow of oil decreases to drops.
(11) Disconnect the pressure fill hose (8) of the FILLING EQUIPMENT - TANK OIL from the pressure fill half-coupling (7).
(12) Install the dust cap (3) on the pressure fill half-coupling (7).

Subtask 24-21-00-920-052-A ** ON A/C NOT FOR ALL

C. Replace the IDG oil filter (Ref. AMM TASK 24-21-51-000-041) and (Ref. AMM TASK 24-21-51-400-041).

Subtask 24-21-00-170-052-A ** ON A/C NOT FOR ALL

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

D. Flushing of the IDG

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 oil brand names approved for the IDG.

(1) Remove the dust cap (3) from the pressure fill half-coupling (7).
(2) Connect the pressure fill hose (8) of the FILLING EQUIPMENT - TANK OIL to the pressure fill half-coupling (7).
(a) Fill the IDG with filtered Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) until:

The color of the oil that flows from 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 24-21-00-640-053-A ** ON A/C NOT FOR ALL

E. Lubricate the new AIPC 24-21-51-02-020 O-RING (2) with Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) .

Subtask 24-21-00-420-052-A ** ON A/C NOT FOR ALL

F. Installation of the Case Drain Plug
(1) Install the new O-ring (2) on the case drain plug (1).
(2) Install the case drain plug (1).
(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 CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.

Subtask 24-21-00-612-053-A ** ON A/C NOT FOR ALL

G. Filling of the IDG with Oil
(1) Fill the IDG with oil (Ref. AMM TASK 12-13-24-612-041).

Subtask 24-21-00-081-054-A ** ON A/C NOT FOR ALL

H. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).

Subtask 24-21-00-410-142-A ** ON A/C NOT FOR ALL

I. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL and 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL and 448AR.

Subtask 24-21-00-710-053-A ** ON A/C NOT FOR ALL

J. Operation of the Engine
(1) Start the related engine (Ref. AMM TASK 71-00-00-710-006) until the temperature of the IDG oil is 175 deg.F (80 deg.C).

NOTE: You can read the oil temperature on the ELEC page of the lower ECAM DU.

(2) Stop the engine (Ref. AMM TASK 71-00-00-710-028).

Subtask 24-21-00-410-143-A ** ON A/C NOT FOR ALL

K. Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040).
(1) FOR [1000EM1] (ENGINE-1)
437AL and 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL and 448AR.

Subtask 24-21-00-481-056-A ** ON A/C NOT FOR ALL

L. Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041).

Subtask 24-21-00-680-051-A ** ON A/C NOT FOR ALL

M. Do steps 4.A. thru 4.C. again and steps 4.E. and 4.F. again.

Subtask 24-21-00-612-063-A ** ON A/C NOT FOR ALL

N. Fill the IDG with oil or add oil to the IDG after a level check (Ref. AMM TASK 12-13-24-612-041).

5. Close-up
Subtask 24-21-00-410-060-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-081-041).
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL and 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL and 448AR.
(4) Remove the WARNING NOTICE(S).

Subtask 24-21-00-862-058-A ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.03.31 23:19:42 UTC