Installation of the Oil Quantity Transmitter [CFMB]

TASK 79-31-15-400-041-A
Installation of the Oil Quantity Transmitter

FIN: 4002EN ** 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	ACCESS PLATFORM 1M(3 FT)
No specific	AR	OHMMETER MULTIRANGE
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 70 and 63 lbf.in (0.79 and 0.71 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP1041)	isopropyl alcohol
(Material No.CP2442)	engine oil
(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
25	PACKING	AIPC 79-31-15-01-040
20	PACKING	AIPC 79-31-15-01-051

E. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
Oil Quantity Transmitter

3. Job Set-up
Subtask 79-31-15-860-050-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 persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.

Subtask 79-31-15-010-051-A ** ON A/C NOT FOR ALL

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

4. Procedure
Subtask 79-31-15-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the Oil Quantity Transmitter
(1) Remove the protective cover from the oil tank.
(2) Clean the mating surfaces:

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

(a) To be sure of a good electrical bond between the oil quantity transmitter (15) and the oil tank, clean the mating surfaces with isopropyl alcohol (Material No.CP1041) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Lubrication:

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

(a) Lubricate the AIPC 79-31-15-01-051 PACKING (20) with engine oil (Material No.CP2442) .
(4) Install the packing (20) on the transmitter (15).
(5) Make sure that the AIPC 79-31-15-01-040 PACKING (25) is installed on the oil quantity transmitter.
(6) Put the transmitter (15) on the oil tank and install the bolts (5) and washers (10)
(7) TORQUE the bolts (5) to between 70 and 63 lbf.in (0.79 and 0.71 m.daN )

.
(8) Remove the protective covers from the electrical connector 4002ENA and the transmitter (15).
(9) Connect the electrical connector 4002ENA to the transmitter (15). Tighten the connector by hand plus one-eighth turn.
(10) Do an electrical bond resistance check as follows:

NOTE: Make sure you do an electrical bond resistance check at each bolt location.

(a) Put one lead of the OHMMETER MULTIRANGE on the flange of the transmitter (15) near the bolt (5).
(b) Put the other lead of the ohmmeter on the top surface of the oil tank.
(c) The resistance measured between the ohmmeter leads must not be more than 0.0025 ohm. Do three more checks.
(d) If the resistance is more than 0.0025 ohm, remove the transmitter (15) and clean the mating surfaces again. Do this procedure until the resistance is less than 0.0025 ohm.

Subtask 79-31-15-861-050-A ** ON A/C NOT FOR ALL

B. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 79-31-15-860-051-A ** ON A/C NOT FOR ALL

C. Do the EIS start procedure (lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).

Subtask 79-31-15-710-050-A ** ON A/C NOT FOR ALL

D. Make sure that oil quantity indication is available on the lower ECAM DU.

Subtask 79-31-15-860-052-A ** ON A/C NOT FOR ALL

E. Do the EIS stop procedure: (Ref. AMM TASK 31-60-00-860-002).

5. Close-up
Subtask 79-31-15-862-050-A ** ON A/C NOT FOR ALL

A. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 79-31-15-410-050-A ** ON A/C NOT FOR ALL

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 71-13-00-410-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 03:39:31 UTC