Installation of the Integrated Drive Generator (IDG) Oil Cooler Assembly [CFMB]
TASK 73-11-60-400-002-A
Installation of the Integrated Drive Generator (IDG) Oil Cooler Assembly
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 73-11-60-860-050-A ** ON A/C NOT FOR ALL
Subtask 73-11-60-420-051-A ** ON A/C NOT FOR ALL
Subtask 73-11-60-410-052-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 05:42:57 UTC
Installation of the Integrated Drive Generator (IDG) Oil Cooler Assembly
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP2101) | graphite grease |
| (Material No.CP2442) | engine oil |
| (Material No.CP8001) | lockwire 0.032 in. (0.8 mm) dia. |
| (Material No.CP8002) | lockwire 0.032 in. (0.8 mm) dia |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 50 | O-RING | AIPC 73-11-60-01-080 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-13-24-612-041-B | Integrated Drive Generator (IDG) Servicing - Filling of the IDG with Oil or Addition of Oil after a level Check |
| 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 71-00-00-710-006-B | Minimum Idle Check |
| 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 |
Subtask 73-11-60-860-050-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) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
Subtask 73-11-60-865-057-A ** ON A/C NOT FOR ALL (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) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 73-11-60-010-052-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 1000EM1 (ENGINE1) | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG1 | 1QG | A08 |
| 121VU | FUEL/LP VALVE/MOT2/ENG1 | 3QG | M25 |
| FOR FIN: 1000EM2 (ENGINE2) | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG2 | 2QG | A09 |
| 121VU | FUEL/LP VALVE/MOT2/ENG2 | 4QG | M26 |
C. 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(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 73-11-60-420-051-A ** ON A/C NOT FOR ALL
A. Install the IDG oil cooler
(1) Remove any blanking CAP - BLANKING and PLUG - BLANKING .
(2) Lubricate the threads of the bolts (40), (130) with graphite grease (Material No.CP2101) .
(3) Install the IDG oil cooler (140) on the brackets on flange E and flange F.
(4) Attach the IDG oil cooler (140) to the bracket on flange E with two bolts (130) and flanged nuts (20).
(5) Attach the IDG oil cooler (140) to the bracket on flange F with the 2 bolts (40) and washers (45).
(6) TORQUE the 2 nuts (20) and the 2 bolts (40) to between 110 and 98 lbf.in (1.24 and 1.11 m.daN )
.
(7) Make sure that the gaskets (70) and (120) are clean and serviceable.
(8) Lubricate the gaskets (70) and (120) with engine oil (Material No.CP2442)
(9) Lubricate the threads of the bolts (100) and (110) with graphite grease (Material No.CP2101)
(10) Connect the fuel supply tube (90) with its gasket (70) to the IDG oil cooler FUEL-IN port, with the 4 bolts (100).
(11) TORQUE the bolts (100) to between 50 and 45 lbf.in (0.57 and 0.51 m.daN )
.
(12) Connect the fuel return tube (80) with its gasket (120) to the IDG oil cooler FUEL-OUT port, with the 4 bolts (110).
(13) TORQUE the bolts (110) to between 50 and 45 lbf.in (0.57 and 0.51 m.daN )
.
(14) Lubricate the OIL-IN and OIL-OUT nipples with engine oil (Material No.CP2442) .
(15) Connect the oil supply tube (150) to the OIL-IN nipple. TORQUE the connection nut to between 770 and 650 lbf.in (8.70 and 7.35 m.daN )
.
(16) Connect the oil return tube (30) to the OIL-OUT nipple. TORQUE the connection nut to between 1100 and 900 lbf.in (12.43 and 10.17 m.daN )
(17) Lubricate an AIPC 73-11-60-01-080 O-RING (50) with engine oil (Material No.CP2442) and install it on the drain plug (60).
(18) Lubricate the drain plug threads with graphite grease (Material No.CP2101) and install it in the drain port.
(19) TORQUE the drain plug (60) to between 55 and 45 lbf.in (0.62 and 0.51 m.daN )
. Safety with CP8001 lockwire 0.032 in. (0.8 mm) dia. or CP8002 lockwire 0.032 in. (0.8 mm) dia .
Subtask 73-11-60-612-051-A ** ON A/C NOT FOR ALL Subtask 73-11-60-942-051-A ** ON A/C NOT FOR ALL (1) Remove any blanking CAP - BLANKING and PLUG - BLANKING .
(2) Lubricate the threads of the bolts (40), (130) with graphite grease (Material No.CP2101) .
(3) Install the IDG oil cooler (140) on the brackets on flange E and flange F.
(4) Attach the IDG oil cooler (140) to the bracket on flange E with two bolts (130) and flanged nuts (20).
(5) Attach the IDG oil cooler (140) to the bracket on flange F with the 2 bolts (40) and washers (45).
(6) TORQUE the 2 nuts (20) and the 2 bolts (40) to between 110 and 98 lbf.in (1.24 and 1.11 m.daN )
. (7) Make sure that the gaskets (70) and (120) are clean and serviceable.
(8) Lubricate the gaskets (70) and (120) with engine oil (Material No.CP2442)
(9) Lubricate the threads of the bolts (100) and (110) with graphite grease (Material No.CP2101)
(10) Connect the fuel supply tube (90) with its gasket (70) to the IDG oil cooler FUEL-IN port, with the 4 bolts (100).
(11) TORQUE the bolts (100) to between 50 and 45 lbf.in (0.57 and 0.51 m.daN )
. (12) Connect the fuel return tube (80) with its gasket (120) to the IDG oil cooler FUEL-OUT port, with the 4 bolts (110).
(13) TORQUE the bolts (110) to between 50 and 45 lbf.in (0.57 and 0.51 m.daN )
. (14) Lubricate the OIL-IN and OIL-OUT nipples with engine oil (Material No.CP2442) .
(15) Connect the oil supply tube (150) to the OIL-IN nipple. TORQUE the connection nut to between 770 and 650 lbf.in (8.70 and 7.35 m.daN )
. (16) Connect the oil return tube (30) to the OIL-OUT nipple. TORQUE the connection nut to between 1100 and 900 lbf.in (12.43 and 10.17 m.daN )

(17) Lubricate an AIPC 73-11-60-01-080 O-RING (50) with engine oil (Material No.CP2442) and install it on the drain plug (60).
(18) Lubricate the drain plug threads with graphite grease (Material No.CP2101) and install it in the drain port.
(19) TORQUE the drain plug (60) to between 55 and 45 lbf.in (0.62 and 0.51 m.daN )
. Safety with C. Remove the WARNING NOTICE(S).
Subtask 73-11-60-865-058-A ** ON A/C NOT FOR ALL D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 73-11-60-710-051-A ** ON A/C NOT FOR ALL 5. Close-up| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 1000EM1 (ENGINE1) | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG1 | 1QG | A08 |
| 121VU | FUEL/LP VALVE/MOT2/ENG1 | 3QG | M25 |
| FOR FIN: 1000EM2 (ENGINE2) | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG2 | 2QG | A09 |
| 121VU | FUEL/LP VALVE/MOT2/ENG2 | 4QG | M26 |
Subtask 73-11-60-410-052-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
Subtask 73-11-60-862-051-A ** ON A/C NOT FOR ALL (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
IDG Oil Cooler