Removal of the IDG Oil Charge and Scavenge Filter-Elements

TASK 24-21-51-000-810-A
Removal of the IDG Oil Charge and Scavenge Filter-Elements

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.

ZONE: 435
ZONE: 445

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

REFERENCE	QTY	DESIGNATION
No specific	AR	CAP - BLANKING
No specific	1	CONTAINER 10 L(2 1/2 USGAL)
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
435	FAN AND ACCESSORY GEARBOX
445	FAN AND ACCESSORY GEARBOX
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-13-24-680-803-A	Draining of the Oil from the Integrated Drive Generator (IDG)
TASK 24-21-00-210-810-A	Inspection of the IDG Oil Charge and Scavenge Filter Elements
TASK 71-13-00-010-803-A	Opening of the Fan Cowl Doors
IDG Oil Charge and Scavenge Filter-Elements

3. Job Set-up
Subtask 24-21-51-941-073-A

A. 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) 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.
(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) Put WARNING NOTICE(S) in position to tell persons not to energize FADEC system 1(2).

Subtask 24-21-51-010-104-A

B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR

4. Procedure
Subtask 24-21-51-680-062-A

A. Draining of the IDG oil
(1) Drain the oil from the IDG (Ref. AMM TASK 12-13-24-680-803).

Subtask 24-21-51-020-120-A

B. Removal of the IDG Oil Charge and Scavenge Filter-Elements

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 remove the lockwire from the filter cap (4).

NOTE: This procedure is the same for the two filters.

(2) Put a CONTAINER 10 L(2 1/2 USGAL) below the filter cavity.
(3) Remove the filter cap (4).
(4) Remove the packing (3) from the filter cap (4).
(5) Remove the filter element (2).
(6) Install a CAP - BLANKING on the filter cavity.

Subtask 24-21-51-210-086-A

C. Inspection of the Filter Element(s)
(1) Do an inspection of the two filter elements (Ref. AMM TASK 24-21-00-210-810).
(2) Discard the packing (3) from the filter cap (4).
(3) Remove and discard the packing (1) from the filter element (2).
(4) Discard the two filter elements (2).

[Rev.10 from 2021] 2026.03.31 23:21:38 UTC