Disconnection of the Defective IDG and Draining of the IDG Oil

TASK 24-20-00-040-803-A
Disconnection of the Defective IDG and Draining of the IDG Oil

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

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 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.

1. Reason for the Job
MMEL 24-09-03D
ELEC IDG 1(2) OIL LO LVL ALERT
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	AR	AIR SOURCE FILTERED, DRY
No specific	AR	COVER - PROTECTION
No specific	AR	LIGHT SOURCE - INSPECTION
No specific	AR	MIRROR - INSPECTION
No specific	AR	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BBB1)	Non Aqueous Cleaner-- Petroleum Based -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

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

D. Referenced Information

REFERENCE	DESIGNATION
TASK 12-13-24-680-802-A	Draining of the Oil from the Integrated Drive Generator (IDG)
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
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 71-13-00-010-802-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
TSM 24-21-00-810-815	The Differential Pressure Indicator (DPI) of the IDG1 Oil Filter is Extended - Alternate Procedure
TSM 24-21-00-810-816	The Differential Pressure Indicator (DPI) of the IDG2 Oil Filter is Extended - Alternate Procedure
IDG Oil Level Sight Glass and DPI

3. Job Set-up
Subtask 24-20-00-941-051-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(3) On the ECAM control panel, push the ELEC key to get the ELEC page.
(4) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put WARNING NOTICE(S) in position to tell persons not to operate the ENG/MODE selector switch and the ENG/MASTER 1(2) control switch.
(5) On the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).

Subtask 24-20-00-010-051-A ** ON A/C NOT FOR ALL

B. 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 24-20-00-040-052-A ** ON A/C NOT FOR ALL

C. 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 24-20-00-010-052-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Open the left thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.

4. Procedure
Subtask 24-20-00-160-051-A ** ON A/C NOT FOR ALL

A. Cleaning of the IDG Oil Sight-Glass for Correct Conditions

WARNING: DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:

FLUSH IT AWAY WITH CLEAN WATER
GET MEDICAL AID.

(1) Make sure that the IDG oil sight-glass is clean.
(a) If the IDG oil sight-glass is not clean:

Clean the sight glass with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) , and
Remove the remaining solvent with a clean Textile-Lint free Cotton - (Material No.14SBA1) or blow air on the sight glass with a AIR SOURCE FILTERED, DRY to dry it.

(b) If the IDG oil sight-glass is clean, continue the maintenance procedure.

Subtask 24-20-00-210-056-A ** ON A/C NOT FOR ALL

B. Check of the IDG Maintenance Conditions
(1) Make sure that the red button of the DPI of the oil filter is not extended.
Use an LIGHT SOURCE - INSPECTION and an MIRROR - INSPECTION, if necessary.
(a) If the red button of the DPI of the oil filter is extended:

Do the troubleshooting procedure for the DPI of the oil-filter that is extended TSM 24-21-00-810-815 or TSM 24-21-00-810-816.

(2) Make sure that the IDG oil level is not lower red band.

If the IDG oil level is lower red band, continue the maintenance procedure.

Subtask 24-20-00-210-057-A ** ON A/C NOT FOR ALL

C. Visual Inspection of IDG for Oil Leaks

NOTE: Do not a visual inspection for oil leaks at the drain mast.

(1) Do a visual inspection of these components:

NOTE: There can be different signs of possible leaks:

Droplets of oil
Wet areas around connections, oil stripes on tubes
Stains or discoloration which can occur when oil or grease goes on very hot surfaces.

(a) IDG fittings, plug or valves for leaks:

Pressure fill port
Overflow drain port
Oil-in and oil-out ports (cooling system interface with the IDG)
Case drain.

(b) External oil system (oil lines) for leaks:

Tubing.

Oil-in and oil-out fittings of the thermal management system module
Body of the heat exchanger.

(d) IDG oil/oil heat-exchanger for leaks:

Oil-in and oil-out fittings of the thermal management system module
Body of the heat exchanger.

(2) If you find signs of oil leaks:
(a) Make an entry in the log book to record the position of the oil leaks.
(b) Continue the maintenance procedure.

Subtask 24-20-00-410-055-A ** ON A/C NOT FOR ALL

D. Close Access
(1) Remove the ACCESS PLATFORM 1M(3 FT).
(2) Close the left thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL

Subtask 24-20-00-440-055-A ** ON A/C NOT FOR ALL

E. 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 24-20-00-410-056-A ** ON A/C NOT FOR ALL

F. 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 24-20-00-860-059-A ** ON A/C NOT FOR ALL

G. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(3) On the ECAM control panel, push the ELEC key to get the ELEC page.

Subtask 24-20-00-865-054-A ** ON A/C NOT FOR ALL

H. Make sure that this(these) circuit breaker(s) is(are) closed:

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 24-20-00-020-050-A ** ON A/C NOT FOR ALL

I. Disconnection of the IDG
(1) Start the engine 1(2) (Ref. AMM TASK 71-00-00-860-823).
(2) Make sure that at least the IDG 1(2) and the external power or the APU generator energize the electrical circuits.

NOTE: This test is for the system 1. For the other system(s), use the indications between the parentheses.

ACTION	RESULT
1.With the engine 1(2) at idle speed, on ELEC control panel 35VU: Lift the guard and push the IDG1(2) pushbutton switch.	On ELEC control panel 35VU: The FAULT legend of the related GEN pushbutton switch comes on.
	On the lower ECAM DU, on the ELEC page: The load voltage of the related generator are zero. The frequency parameters of the related generator are amber crosses. The amber DISC indication comes into view below the IDG indication. The external power energizes the aircraft electrical circuits.
2.On ELEC control panel 35VU: Release the GEN 1(2) pushbutton switch.	On ELEC control panel 35VU: The FAULT legend of the related GEN pushbutton switch goes off, The OFF legend of the related GEN pushbutton switch comes on.
3.On ELEC control panel 35VU: Lower the safety guard of the IDG1(2) pushbutton switch.

(3) Make an entry in the log book to tell persons that you disconnect the IDG(1)2.
(4) Stop the engine 1(2) (Ref. AMM TASK 71-00-00-860-814).

Subtask 24-20-00-941-053-A ** ON A/C NOT FOR ALL

J. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:

The ENG/MODE selector switch, and
The ENG/MASTER 1(2) control switch.

(2) On the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).

Subtask 24-20-00-010-055-A ** ON A/C NOT FOR ALL

K. 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 24-20-00-040-054-A ** ON A/C NOT FOR ALL

L. 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 24-20-00-010-056-A ** ON A/C NOT FOR ALL

M. Get Access
(1) Open the left thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL
(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 24-20-00-680-050-A ** ON A/C NOT FOR ALL

N. Draining of the Oil from the IDG1(2)
(1) Drain the oil from the IDG (Ref. AMM TASK 12-13-24-680-802).

Subtask 24-20-00-710-057-A ** ON A/C NOT FOR ALL

O. CAUTION to Prevent Damage to IDG1(2)

5. Close-up
Subtask 24-20-00-410-051-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the left thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL

Subtask 24-20-00-440-053-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 24-20-00-410-052-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 24-20-00-862-059-A ** ON A/C NOT FOR ALL

D. Put the aircraft back to its initial configuration.
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.03.31 23:19:29 UTC