Installation of the Fuel-Cooled IDG Oil-Cooler
TASK 24-21-42-400-010-B
Installation of the Fuel-Cooled IDG Oil-Cooler
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 24-21-42-860-051-A ** ON A/C NOT FOR ALL
Subtask 24-21-42-110-052-A ** ON A/C NOT FOR ALL
Subtask 24-21-42-410-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 05:43:03 UTC
Installation of the Fuel-Cooled IDG Oil-Cooler
WARNING:
DO NOT LET ENGINE OIL STAY ON YOUR SKIN FOR A LONG TIME. FLUSH THE OIL FROM YOUR SKIN WITH WATER. THE OIL IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V01-124) | Isopropyl Alcohol, Technical grade |
| (Material No.V02-147) | lockwire |
| (Material No.V10-077) | lubricant (engine oil) |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 66 | SEALING RING | AIPC 24-21-42-80-060 |
| 60 | SEALING RING | AIPC 24-21-42-80-070 |
| 1 | SEALING RING | AIPC 24-21-42-80-180 |
| 2 | PACKING | AIPC 24-21-42-80-180 |
| 57 | SEALING RINGS | AIPC 73-11-49-80-040 |
| 54 | SEALING RING | AIPC 73-11-49-80-050 |
| 59 | SEALING RING | AIPC 73-11-49-80-050 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-21-15-400-010-A | Installation of the IDG Oil Temperature Thermocouple |
| TASK 70-23-11-911-013-A | General Torque Tightening Techniques |
| TASK 70-23-13-911-010-A | Procedures for the Installation of Preformed Packings |
| TASK 71-00-00-710-017-B | Ground Test Requirements after Power Plant Module/Component Repair or Replacement Procedures |
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 71-13-00-410-010-A | Closing of the Fan Cowls 437AL(447AL),438AR(448AR) |
Subtask 24-21-42-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that the WARNING NOTICE(S) is (are) on the panel 115VU to tell persons not to start the engine 1(2).
(2) Make sure that the WARNING NOTICE(S) is (are) on the panel 50VU to tell persons not to power supply the FADEC system.
Subtask 24-21-42-010-053-A ** ON A/C NOT FOR ALL (1) Make sure that the WARNING NOTICE(S) is (are) on the panel 115VU to tell persons not to start the engine 1(2).
(2) Make sure that the WARNING NOTICE(S) is (are) on the panel 50VU to tell persons not to power supply the FADEC system.
B. Make sure that the fan cowls are open (Ref. AMM TASK 71-13-00-010-010):
(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 24-21-42-110-052-A ** ON A/C NOT FOR ALL
A. Cleaning of the Mounting Surfaces
(1) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist withV01-124 Isopropyl Alcohol, Technical grade to clean the mounting surfaces on the fan case.
Subtask 24-21-42-420-062-A ** ON A/C NOT FOR ALL (1) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with
B. Installation of the Fuel Drain Plug
(1) Lubricate the new AIPC 24-21-42-80-180 PACKING (2) withV10-077 lubricant (engine oil) and install it on the fuel drain plug (3), (Ref. AMM TASK 70-23-13-911-010).
(2) Install the fuel drain plug on the fuel-cooled IDG oil-cooler.
(3) TORQUE the fuel drain plug to between 65 and 40 lbf.in (0.73 and 0.45 m.daN )
, (Ref. AMM TASK 70-23-11-911-013).
(4) Safety the fuel drain plug to the fuel-cooled IDG oil-cooler with lockwire (Material No.V02-147) .
Subtask 24-21-42-420-063-A ** ON A/C NOT FOR ALL (1) Lubricate the new AIPC 24-21-42-80-180 PACKING (2) with
(2) Install the fuel drain plug on the fuel-cooled IDG oil-cooler.
(3) TORQUE the fuel drain plug to between 65 and 40 lbf.in (0.73 and 0.45 m.daN )
, (Ref. AMM TASK 70-23-11-911-013). (4) Safety the fuel drain plug to the fuel-cooled IDG oil-cooler with lockwire (Material No.V02-147) .
C. Installation of the Oil Drain Plug
(1) Lubricate the new AIPC 24-21-42-80-180 SEALING RING (1) with cleanV10-077 lubricant (engine oil) and install it on the oil drain plug (4), (Ref. AMM TASK 70-23-13-911-010).
(2) Install the oil drain plug on the fuel-cooled IDG oil-cooler.
(3) TORQUE the oil drain plug to between 65 and 40 lbf.in (0.73 and 0.45 m.daN )
, (Ref. AMM TASK 70-23-11-911-013).
(4) Safety the oil drain plug to the fuel-cooled IDG oil-cooler with the V02-147 lockwire.
Subtask 24-21-42-420-065-A ** ON A/C NOT FOR ALL (1) Lubricate the new AIPC 24-21-42-80-180 SEALING RING (1) with clean
(2) Install the oil drain plug on the fuel-cooled IDG oil-cooler.
(3) TORQUE the oil drain plug to between 65 and 40 lbf.in (0.73 and 0.45 m.daN )
, (Ref. AMM TASK 70-23-11-911-013). (4) Safety the oil drain plug to the fuel-cooled IDG oil-cooler with the V02-147 lockwire.
D. Installation of the Sealing Rings and the Seal Housing on the Fuel Tube
(1) Lubricate two new AIPC 73-11-49-80-040 SEALING RINGS (57) with cleanV10-077 lubricant (engine oil) and install them on the fuel tube (55), (Ref. AMM TASK 70-23-13-911-010).
(2) Install the seal housing (58) on the fuel tube (55).
Subtask 24-21-42-420-066-A ** ON A/C NOT FOR ALL (1) Lubricate two new AIPC 73-11-49-80-040 SEALING RINGS (57) with clean
(2) Install the seal housing (58) on the fuel tube (55).
E. Installation of the Fuel-Cooled IDG Oil-Cooler
(1) Put the bushes (71) and (77) into the mounting holes in the flanges of the fuel-cooled IDG oil-cooler.
(2) Put the fuel-cooled IDG oil-cooler on the fan case flange.
(3) Install the pin (75) through the fan case flange and into the bush (71).
(4) Tighten the pin lightly.
(5) Install the pin (76) through the fan case flange and into the bush (77).
(6) Tighten the pin lightly.
(7) TORQUE the pins (75) and (76) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013).
Subtask 24-21-42-420-067-A ** ON A/C NOT FOR ALL (1) Put the bushes (71) and (77) into the mounting holes in the flanges of the fuel-cooled IDG oil-cooler.
(2) Put the fuel-cooled IDG oil-cooler on the fan case flange.
(3) Install the pin (75) through the fan case flange and into the bush (71).
(4) Tighten the pin lightly.
(5) Install the pin (76) through the fan case flange and into the bush (77).
(6) Tighten the pin lightly.
(7) TORQUE the pins (75) and (76) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013). F. Connection of the Seal Housing and the Fuel Tube to the Fuel-Cooled IDG Oil-Cooler
(1) Lubricate the new AIPC 73-11-49-80-050 SEALING RING (59) with cleanV10-077 lubricant (engine oil) and install it in the seal housing (58), (Ref. AMM TASK 70-23-13-911-010).
(2) Attach the seal housing and the fuel tube to the fuel-cooled IDG oil-cooler with the bolts (56).
(3) TORQUE the bolts to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013).
Subtask 24-21-42-420-068-A ** ON A/C NOT FOR ALL (1) Lubricate the new AIPC 73-11-49-80-050 SEALING RING (59) with clean
(2) Attach the seal housing and the fuel tube to the fuel-cooled IDG oil-cooler with the bolts (56).
(3) TORQUE the bolts to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013). G. Connection of the Fuel Tube to the Fuel-Cooled IDG Oil-Cooler
(1) Lubricate the new AIPC 73-11-49-80-050 SEALING RING (54) with cleanV10-077 lubricant (engine oil) and install it on the fuel tube (51), (Ref. AMM TASK 70-23-13-911-010).
(2) Attach the fuel tube and the bracket (52) to the fuel-cooled IDG oil-cooler with the bolts (53).
(3) TORQUE the bolts to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013).
Subtask 24-21-42-420-069-A ** ON A/C NOT FOR ALL (1) Lubricate the new AIPC 73-11-49-80-050 SEALING RING (54) with clean
(2) Attach the fuel tube and the bracket (52) to the fuel-cooled IDG oil-cooler with the bolts (53).
(3) TORQUE the bolts to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013). H. Connection of the Oil Tube to the Fuel-Cooled IDG Oil-Cooler
(1) Lubricate the new AIPC 24-21-42-80-070 SEALING RING (60) with cleanV10-077 lubricant (engine oil) and install it on the oil tube (63), (Ref. AMM TASK 70-23-13-911-010).
(2) Attach the oil tube and the bracket (61) to the fuel-cooled IDG oil-cooler with the bolts (62).
(3) TORQUE the bolts to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013).
Subtask 24-21-42-420-070-A ** ON A/C NOT FOR ALL (1) Lubricate the new AIPC 24-21-42-80-070 SEALING RING (60) with clean
(2) Attach the oil tube and the bracket (61) to the fuel-cooled IDG oil-cooler with the bolts (62).
(3) TORQUE the bolts to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013). I. Connection of the Oil Tube to the Fuel-Cooled IDG Oil-Cooler
(1) Lubricate the new AIPC 24-21-42-80-060 SEALING RING (66) with cleanV10-077 lubricant (engine oil) and install it on the oil tube (64), (Ref. AMM TASK 70-23-13-911-010).
(2) Attach the oil tube and the bracket (65) to the fuel-cooled IDG oil-cooler with the bolts (67).
(3) TORQUE the bolts to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013).
Subtask 24-21-42-420-071-A ** ON A/C NOT FOR ALL (1) Lubricate the new AIPC 24-21-42-80-060 SEALING RING (66) with clean
(2) Attach the oil tube and the bracket (65) to the fuel-cooled IDG oil-cooler with the bolts (67).
(3) TORQUE the bolts to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013). J. Attachment of the Clips of the EEC Harness at Positions B, C, D and E
(1) Attach the harness (33) to the tube (35) with the clip (36), bolt (31), washer (32) and nut (34) at position E.
(2) Attach the harness (42) to the tube (44) with the clip (45), bolt (41), washer (46) and nut (43) at position D.
(3) Attach the harness (23) to the tube (25) with the clip (26), bolt (21), washer (22) and nut (24) at position C.
(4) Attach the harness (14) to the tube (15) with the clip (11), bolt (12), washer (13) and nut (16) at position B.
(5) TORQUE the bolts (31), (41), (21) and (12) and the nuts (34), (43), (24), and (16) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013).
Subtask 24-21-42-420-072-A ** ON A/C NOT FOR ALL (1) Attach the harness (33) to the tube (35) with the clip (36), bolt (31), washer (32) and nut (34) at position E.
(2) Attach the harness (42) to the tube (44) with the clip (45), bolt (41), washer (46) and nut (43) at position D.
(3) Attach the harness (23) to the tube (25) with the clip (26), bolt (21), washer (22) and nut (24) at position C.
(4) Attach the harness (14) to the tube (15) with the clip (11), bolt (12), washer (13) and nut (16) at position B.
(5) TORQUE the bolts (31), (41), (21) and (12) and the nuts (34), (43), (24), and (16) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
, (Ref. AMM TASK 70-23-11-911-013). K. Installation of the Fuel-Cooled IDG Oil-Cooler Temperature Thermocouple
(1) Install the fuel-cooled IDG oil-cooler temperature thermocouple (Ref. AMM TASK 24-21-15-400-010).
Subtask 24-21-42-790-051-A ** ON A/C NOT FOR ALL 5. Close-up(1) Install the fuel-cooled IDG oil-cooler temperature thermocouple (Ref. AMM TASK 24-21-15-400-010).
Subtask 24-21-42-410-051-A ** ON A/C NOT FOR ALL
Fuel-Cooled IDG Oil-Cooler