Installation of the Magnetic Plug Assembly [CFMI]

TASK 79-21-10-400-002-A
Installation of the Magnetic Plug Assembly

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	PAPER - THIN
No specific	AR	ROD - NYLON
No specific	AR	WARNING NOTICE(S)
856A2629	1	TOOL,SEAL FITTING-MAGNETIC PLUG LUBE UNIT

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP1039)	acetone
(Material No.CP2011)	stoddard solvent
(Material No.CP2442)	engine oil
(Material No.CP2559)	ardrox 552
(Material No.CP2560)	turco ind 79
(Material No.CP2566)	mag-chem teksol
(Material No.CP2584)	degreasol 99 R
(Material No.CP2656)	mag-chem skysol
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
20	O-RING	AIPC 79-21-10-01-180
10	"SOLOSELE G" SEAL	AIPC 79-21-10-01-190

E. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
Location of Magnetic Plugs
Magnetic Plug Assembly from/on Lubrication Unit

3. Job Set-up
Subtask 79-21-10-860-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) is off. Make sure that a WARNING NOTICE(S) is in position to tell

Subtask 79-21-10-010-057-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR

4. Procedure
Subtask 79-21-10-110-050-A ** ON A/C NOT FOR ALL

A. Clean the magnetic plug as follows:

WARNING: DO THIS OPERATION IN AN APPROVED CABINET OR WELL VENTILATED AREA. TAKE PRECAUTIONS TO PREVENT INHALATION OF VAPORS AND TO REDUCE FIRE HAZARDS. REPEATED OR PROLONGED CONTACT WITH THIS MATERIAL WILL REMOVE SKIN OILS AND CAUSE SEVERE DERMATITIS.

CAUTION: DAMAGE MAY OCCUR IF MAGNET IS SUBJECTED TO IMPACT.

(1) Remove scavenge screen from magnetic plug by using a ROD - NYLON to depress the spring-loaded pin that secures scavenge screen filter to magnetic plug.

CAUTION: DO NOT USE ANOTHER MAGNET TO REMOVE PARTICLES FROM THE DETECTOR MAGNETS. THIS CAN DECREASE THE MAGNETIC PERFORMANCE OF THE EMCD.

(a) Remove particles from the scavenge screen.
(b) Remove magnetic particles from magnet with a Textile-Lint free Cotton - (Material No.14SBA1) or PAPER - THIN.
(2) Clean scavenge screen.

CAUTION: USE APPROVED SOLVENT ONLY. IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE SCAVENGE SCREEN CAN OCCUR.

(a) Clean scavenge screen with stoddard solvent (Material No.CP2011) or acetone (Material No.CP1039) or ardrox 552 (Material No.CP2559) or turco ind 79 (Material No.CP2560) or mag-chem teksol (Material No.CP2566) or degreasol 99 R (Material No.CP2584) or mag-chem skysol (Material No.CP2656) by passing atomized solvent through filter. Flush filter with engine oil (Material No.CP2442) .

Subtask 79-21-10-210-051-A ** ON A/C NOT FOR ALL

B. Do the visual inspection of the "SOLOSELE G" seal:

CAUTION: THE "SOLOSELE G" SEAL IS NOT AN EXPENDABLE. YOU CAN USE IT AGAIN IF IT IS NOT DAMAGED (TEAR, CUT).

(1) Visually inspect the "SOLOSELE G" seal (10) for condition.

Subtask 79-21-10-020-056-A ** ON A/C NOT FOR ALL

C. Removal of the seal:
(1) If damaged, replace "SOLOSELE G" seal (10) as follows:
(a) Remove and discard damaged seal (10).
(b) Check the condition of the groove which accepts the seal.
(c) Install 79211001-190"SOLOSELE G" SEAL10 in the groove using 856A2629 TOOL,SEAL FITTING-MAGNETIC PLUG LUBE UNIT (856A2629G01) coated with engine oil (Material No.CP2442) .
(2) Install the O-ring

CAUTION: DO NOT FORGET TO INSTALL AN O-RING. THE ABSENCE OF THE O-RING CAN CAUSE IMPORTANT OIL LOSSES DURING ENGINE OPERATION WITH POSSIBLE ENGINE FAILURE.

(a) Install new AIPC 79-21-10-01-180 O-RING (20) lightly coated with engine oil (Material No.CP2442) into groove of magnetic plug.
(3) Install the scavenge screen.

CAUTION: INSTALLATION OF MAGNETIC PLUG WITHOUT O-RING CAN RESULT IN EXCESSIVE OIL LOSS DURING ENGINE OPERATION WITH POSSIBLE ENGINE FAILURE.

(a) Install scavenge screen on magnetic plug by depressing the spring-loaded pin that secures scavenge screen to magnetic plug. Slide scavenge screen over magnetic plug.Make sure that spring-loaded pin is engaged in filter hole.

Subtask 79-21-10-420-050-A ** ON A/C NOT FOR ALL

D. Install the magnetic plug assembly:

CAUTION: KEEP MAGNETIC PLUG ASSEMBLY ALIGNED TO PREVENT SCAVENGE SCREEN INTERFERENCE WITH LUBRICATION UNIT HOUSING.

(1) Carefully insert magnetic plug assembly into lubrication unit housing with slot opening of scavenge screen facing accessory gearbox.
(2) Do not force and keep pushing inward until full insertion is obtained.
(3) Align plug keys of magnetic plug with sleeve keyways and rotate a quarter of a turn clockwise to complete engagement of keys in keyways.
(4) Make sure that magnetic plug assembly has snapped down into its lock position by pulling magnetic plug down, while lightly rotating from side to side. Flats of handle must be perpendicular to the centerline of lube unit. Magnetic plugs are provided with a red point on plug handle. The red point must face the filters.
(5) Remove container from under the magnetic plug.

5. Close-up
Subtask 79-21-10-410-051-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors: (Ref. AMM TASK 71-13-00-410-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 03:37:53 UTC