Removal of the Seal Assembly [IAE]

TASK 72-60-31-000-010-A
Removal of the Seal Assembly

WARNING: DO NOT LET ENGINE OIL STAY ON YOUR SKIN FOR A LONG TIME. FLUSH THE OIL FROM YOUR SKIN WITH WATER. THE OIL IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY.

ZONE: 400
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

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	COVER - PROTECTION
No specific	AR	WARNING NOTICE(S)
IAE1F10067	1	PULLER, REMOVAL

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 72-60-29-000-010-A	Removal of the Mating Ring
TASK 72-60-29-400-010-A	Installation of the Mating Ring
TASK 72-61-49-000-010-B	Removal of the Gearbox Breather Outlet Duct (GBOD)
Seal Assembly

3. Job Set-up
Subtask 72-60-31-941-050-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Put a WARNING NOTICE(S) 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 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) to tell persons not to energize the FADEC 1(2).

Subtask 72-60-31-010-050-A ** ON A/C NOT FOR ALL

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

4. Procedure
Subtask 72-60-31-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the seal assembly
(1) Remove the gearbox breather outlet duct (Ref. AMM TASK 72-61-49-000-010).
(2) Remove the seal assembly.

Seal Assembly ** ON A/C NOT FOR ALL

(a) Remove the three bolts (5) and the washers (4) which attach the seal assembly (3) to the deoiler casing (2).
(b) Install IAE1F10067 PULLER, REMOVAL, on to the seal assembly (3).
(c) Use the puller, IAE1F10067, to remove the seal assembly (3).
(d) Remove the puller, IAE1F10067, from the seal assembly (3).
(e) Discard the seal assembly (3) with packing (1).

Subtask 72-60-31-210-050-A ** ON A/C NOT FOR ALL

B. Replace the Mating Ring
(1) Remove the mating ring (Ref. AMM TASK 72-60-29-000-010).
(2) Install a new mating ring (Ref. AMM TASK 72-60-29-400-010).

NOTE: It is important to replace the mating ring when the seal assembly is replaced. Not replacing the mating ring when the seal assembly is replaced may result in an oil leak.

Subtask 72-60-31-620-050-A ** ON A/C NOT FOR ALL

C. Put the applicable COVER - PROTECTION on all the openings.

[Rev.10 from 2021] 2026.04.01 02:47:00 UTC