Removal and Inspection of the Magnetic Chip Collector Assemblies [PW11]

TASK 79-22-01-000-801-A
Removal and Inspection of the Magnetic Chip Collector Assemblies

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.

ZONE: 400
FIN: 4041EM ** ON A/C NOT FOR ALL
FIN: 4042EM ** ON A/C NOT FOR ALL
FIN: 4043EM ** ON A/C NOT FOR ALL
FIN: 4044EM ** ON A/C NOT FOR ALL
FIN: 4045EM ** ON A/C NOT FOR ALL
FIN: 4046EM ** ON A/C NOT FOR ALL

1. Reason for the Job
Use this procedure to remove the magnetic chip collector assemblies and analyze them for contamination.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	CONTAINER 20L (5 USGAL)
No specific	AR	COVER - PROTECTION

B. Consumable Materials

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

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR, 451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR, 461AL, 462AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
1	PACKING	EIPC 79-22-01-01-020

E. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-36-00-010-802-A	Opening of the Thrust Reverser Cowl-Doors
TASK 79-00-00-210-811-A	Laboratory Analysis of the Engine Oil for Contamination
TASK 79-11-02-000-801-A	Removal of the Oil Tank Cap and Filler Neck
Magnetic Chip Collectors

3. Job Set-up
Subtask 79-22-01-941-050-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).

Subtask 79-22-01-010-050-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 79-22-01-040-050-A ** ON A/C NOT FOR ALL

C. Deactivation of the Thrust Reverser 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 79-22-01-010-051-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR

4. Procedure
Subtask 79-22-01-020-050-A ** ON A/C NOT FOR ALL

A. Removal and Inspection of the Magnetic Chip Collector Assemblies

WARNING: WAIT FIVE MINUTES MINIMUM TO MAKE SURE THAT THE OIL SYSTEM IS NOT PRESSURIZED BEFORE YOU DO THIS PROCEDURE. IF YOU DO NOT OBEY THIS WARNING, INJURY CAN OCCUR.

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

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

(1) Find the five magnetic chip collector assemblies (5) on the lubrication and scavenge pump and one on the oil tube (LR40) at approximately the 8 o'clock position.

Magnetic Chip Collectors ** ON A/C NOT FOR ALL

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE OIL SYSTEM AND USE SUFFICIENT PROTECTION FOR THE HANDS AND EYES. THE OIL IS HOT AND CAN CAUSE BURNS.

(2) Make sure the oil system is not pressurized as follows:
(a) Wait five minutes after engine shutdown.
(b) Open the oil tank cap (Ref. AMM TASK 79-11-02-000-801).
(c) Close the oil tank cap (Ref. AMM TASK 79-11-02-000-801).
(3) Put the CONTAINER 20L (5 USGAL) under the collector assemblies (5).

CAUTION: DO NOT REMOVE THE MAGNETIC CHIP COLLECTOR AS A COMPLETE ASSEMBLY. REMOVE THE CHIP COLLECTOR BEFORE THE COLLECTOR VALVE. IF YOU DO NOT OBEY THIS CAUTION, DAMAGE TO THE CHIP COLLECTOR ASSEMBLY CAN OCCUR.

(4) Remove each collector assembly (5) as follows:

NOTE: You must keep each chip collector and valve together as a set after removal.

(a) Push the chip collector (2) in and turn it to disengage it from the collector valve (6).
(b) Remove the chip collector (2).
(c) Visually examine the chip collector (2) for contamination (Ref. AMM TASK 79-00-00-210-811).
(5) Examine the packing (1) on the chip collector (2) for damage or wear.
(6) If there are signs of damage or wear, replace the packing (1) as follows:
(a) Remove and discard the packing (1) from the chip collector (2).
(b) Apply P03-001lubricant, aircraft turbine engine to a new EIPC 79-22-01-01-020 PACKING (1).
(c) Install the new packing (1) on the chip collector (2).
(7) Remove the collector valve (6) from the pump and oil tube (LR40).
(8) Remove and discard the packings (3) and (4) from the collector valve (6).
(9) Installation of protection covers:

CAUTION: INSTALL PROTECTION COVERS ON ALL THE OPENINGS IMMEDIATELY TO PREVENT DAMAGE TO THE ENGINE.

(a) Make sure that you install all the necessary COVER - PROTECTION to prevent engine damage.

[Rev.10 from 2021] 2026.04.01 13:02:04 UTC