Test of the Oil Temperature Sensor (IDG Cooling System Control Sensor) [CFMB]

TASK 79-32-15-700-001-A
Test of the Oil Temperature Sensor (IDG Cooling System Control Sensor)

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	MULTIMETER - STANDARD
No specific	AR	PLIERS - CONNECTOR, JAW, SOFT
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

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

C. Referenced Information

REFERENCE	DESIGNATION
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
TASK 79-32-15-000-042-A	Removal of the Oil Temperature Sensor (IDG Cooling System Control Sensor)
TASK 79-32-15-400-042-A	Installation of the Oil Temperature Sensor (IDG Cooling System Control Sensor)
ASM 732518

3. Job Set-up
Subtask 79-32-15-941-057-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 79-32-15-010-063-A ** ON A/C NOT FOR ALL

B. Open the fan cowl doors: (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 79-32-15-760-050-A ** ON A/C NOT FOR ALL

A. Electrical Test of the Oil Temperature Sensor
(1) Disconnect the connector from the oil temperature sensor. Use PLIERS - CONNECTOR, JAW, SOFT only if necessary.
(2) Check the resistance values as follows. If they are different from the values given, replace the oil temperature sensor (Ref. AMM TASK 79-32-15-000-042) and (Ref. AMM TASK 79-32-15-400-042).
(a) Measure the resistance of each probe with a MULTIMETER - STANDARD. The resistance value between the pin 1 and 2 and between the pin 3 and 4 must be 0.67 +- 0.08 Ohm, at ambient temperature ASM 732518
(b) Measure the insulation resistance of each probe probe between the pin 1 and 2 connected together and the sensor casing, and between the pins 3 and 4 connected together and the sensor casing. The nominal value must be equal to or higher than 10 Megohms.
(3) Connect the connector to the oil temperature sensor. Use PLIERS - CONNECTOR, JAW, SOFT only if necessary.

5. Close-up
Subtask 79-32-15-410-057-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 03:39:42 UTC