Installation of the Oil Debris Monitoring System (ODMS) Sensor [CFML]

TASK 79-36-10-400-801-A
Installation of the Oil Debris Monitoring System (ODMS) Sensor

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

ZONE: 400
FIN: 4074KS

1. Reason for the Job
Self explanatory
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	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 46.2 and 42.1 lbf.in (0.52 and 0.48 m.daN )
No specific	Torque wrench: range to between 111.3 and 100.9 lbf.in (1.26 and 1.14 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2442)	engine oil

C. Work Zones and Access Panels

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

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
8	O-RING	EIPC 79-36-10-01-080

E. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-803-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A	Closing of the Fan Cowl Doors
TASK 73-29-00-710-802-A	FADEC Test (Menu Mode)
TASK 79-36-00-740-801-A	Oil Debris Reset (Menu Mode)
Oil Debris Monitoring System (ODMS) Sensor

3. Job Set-up
Subtask 79-36-10-941-051-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) Make sure that the WARNING NOTICE(S) are 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) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).

Subtask 79-36-10-010-052-A

B. Get Access
(1) Make sure that the fan cowl doors are open (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
(2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.

4. Procedure

WARNING: USE PERSONAL PROTECTION EQUIPMENT. USE THE ENGINE OIL IN A WELL-VENTILATED AREA. ENGINE OIL IS TOXIC.

Subtask 79-36-10-420-050-A

A. Installation of the Oil Debris Monitoring System (ODMS) Sensor
(1) Remove the COVER - PROTECTION and the CAP - PROTECTION from the openings, tubes, hoses and connectors.
(2) Make sure that the mating surfaces are clean and clear of unwanted materials.
(3) Lubricate the threads of the two captive screws of the ODMS sensor (1) and the new EIPC 79-36-10-01-080 O-RING (8) with the engine oil (Material No.CP2442) .
(4) Install the new O-ring (8) in the groove of the ODMS sensor (1).

NOTE: The omniseal should not be disturbed.

(5) Install the ODMS sensor (1) on the air-oil separator (2).
(6) Install the two nuts (14) on the two captive screws of the ODMS sensor (1) to attach the ODMS sensor (1) to the air-oil separator (2) and tighten them with your hand.
(7) TORQUE the two captive screws of the ODMS sensor (1) to between 111.3 and 100.9 lbf.in (1.26 and 1.14 m.daN )

.
(8) Install the bolt (4) that attaches the clamp (6) and the ODMS sensor (1) to the bracket (7).
(9) TORQUE the bolt (4) to between 46.2 and 42.1 lbf.in (0.52 and 0.48 m.daN )

.
(10) Install the bolt (11) that attaches the clamp (9) and the ODMS sensor (1) to the bracket (10).
(11) TORQUE the bolt (11) to between 46.2 and 42.1 lbf.in (0.52 and 0.48 m.daN )

.
(12) Install the ODMS harness in the clip (5) along its routing.
(13) Connect the connector of the ODMS sensor (1) to the ODMS unit (12).

5. Close-up
Subtask 79-36-10-710-050-A

A. Test(s)
(1) Do the oil debris reset (menu mode) (Ref. AMM TASK 79-36-00-740-801).
(2) Do the FADEC test (menu mode) (Ref. AMM TASK 73-29-00-710-802).

Subtask 79-36-10-410-051-A

B. 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 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 13:15:05 UTC