Replacement of the Fan Shaft Cover [PW11]

TASK 72-15-00-960-801-A
Replacement of the Fan Shaft Cover

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

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 430
ZONE: 440

1. Reason for the Job
Use this procedure to replace the fan shaft cover and packing.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 1M(3 FT)
No specific	1	MAT - PROTECTIVE
PWA111679	1	PULLER, JACKSCREW

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.P03-001)	lubricant, aircraft turbine engine

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
430	ENG 1 AIR INTAKE, FAN AND ACCESS GEARBOX
440	ENG 2 AIR INTAKE, FAN AND ACCESS GEARBOX

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
1	PACKING PREFORMED	EIPC 72-11-06-01-170

E. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-720-811-A	Test No. 3A - Idle Power Test
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 72-11-01-000-801-A	Removal of the Inlet Cone
TASK 72-11-01-400-801-A	Installation of the Inlet Cone
Fan Shaft Cover Removal
Fan Shaft Cover Installation

3. Job Set-up
Subtask 72-15-00-941-051-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
(2) Put the ACCESS PLATFORM 1M(3 FT).
(3) Put the MAT - PROTECTIVE inside the engine intake cowl.

4. Procedure
Subtask 72-15-00-960-050-A ** ON A/C NOT FOR ALL

A. Replacement of the Fan Shaft Cover

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

(1) Remove the inlet cone (Ref. AMM TASK 72-11-01-000-801).
(2) Remove the fan shaft cover (2) with the PWA111679 PULLER, JACKSCREW as follows:

Fan Shaft Cover Removal ** ON A/C NOT FOR ALL

(a) Remove the retaining ring (3).
(b) Loosen the hex nut on the PWA111679 PULLER, JACKSCREW.
(c) Turn the dowel pins to move the arms to the UNLOCKED position.
(d) Install the PWA111679 PULLER, JACKSCREW on the cover (2).
(e) Turn the dowel pins to move the arms to the LOCKED position to engage the arms of the PWA111679 PULLER, JACKSCREW in the inner diameter of the cover (2).
(f) Tighten the hex nut until the cover (2) disengages from the fan shaft.
(g) Remove the cover (2) from the fan shaft.
(h) Remove the PWA111679 PULLER, JACKSCREW from the cover (2).
(i) Remove and discard the packing (1) from the cover (2).
(3) Install the fan shaft cover (2) as follows:

Fan Shaft Cover Installation ** ON A/C NOT FOR ALL

(a) Apply P03-001lubricant, aircraft turbine engine to a new EIPC 72-11-06-01-170 PACKING PREFORMED (1).
(b) Install the packing (1) to the cover (2).
(c) Install the cover (2) to the fan shaft.
(d) Install the retaining ring (3) to the fan shaft.
(4) Install the inlet cone (Ref. AMM TASK 72-11-01-400-801).
(5) Examine the assembly for foreign objects, damage and correct assembly.

5. Close-up
Subtask 72-15-00-942-050-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) Remove the MAT - PROTECTIVE from the engine intake cowl.
(3) Remove the access platform(s).

Subtask 72-15-00-720-051-A ** ON A/C NOT FOR ALL

B. Test(s)
(1) Do test No. 3 - Idle power test (Ref. AMM TASK 71-00-00-720-811).

[Rev.10 from 2021] 2026.04.01 13:02:14 UTC