Installation of the Tubing - IDG Cooler Oil

TASK 24-21-49-400-041-A
Installation of the Tubing - IDG Cooler Oil

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: WEAR GOGGLES, INSULATED GLOVES AND OTHER PROTECTIVE CLOTHES. HOT OIL CAN BURN YOUR EYES AND SKIN. IF OIL TOUCHES YOUR EYES OR SKIN, GET MEDICAL AID.

CAUTION: DO NOT LET ENGINE FUEL OR OIL FALL ON THE ENGINE. UNWANTED FUEL OR OIL MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH. THE FUEL OR OIL CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.

ZONE: 430
ZONE: 440
FIN: 4000XU ** 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	WARNING NOTICE(S)
No specific	Torque wrench: range to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
No specific	Torque wrench: range to between 680 and 620 lbf.in (7.68 and 7.01 m.daN )
No specific	Torque wrench: range to between 945 and 844 lbf.in (10.68 and 9.54 m.daN )
No specific	Torque wrench: range to between 945 and 855 lbf.in (10.68 and 9.66 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V10-039)	engine oil

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
430	ENG 1 AIR INTAKE AND FAN COWLS
440	ENG 2 AIR INTAKE AND FAN COWLS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
10	SEALING RING	AIPC 24-21-42-80-070
8	PACKING	AIPC 24-21-42-80-070

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-13-24-612-011-A	Integrated Drive Generator (IDG) Servicing - Filling of the IDG with Oil or Addition of Oil after a Level Check
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 70-30-00-918-010-A	Consumable Materials Index
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)
Tubings - IDG Cooling Oil

3. Job Set-up
Subtask 24-21-49-860-052-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 24-21-49-865-057-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 4000XU (IDG) FOR FIN: 1000EM1 (ENGINE1)
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG1/DISC	1XT	T24
FOR FIN: 4000XU (IDG) FOR FIN: 1000EM2 (ENGINE2)
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/IDG2/DISC	2XT	T25

Subtask 24-21-49-010-057-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Make sure that the fan cowls are open (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR

4. Procedure
Subtask 24-21-49-420-057-A ** ON A/C NOT FOR ALL

A. Installation of the IDG Oil Tubes on the IDG Oil Cooler
(1) Lubricate the new AIPC 24-21-42-80-070 SEALING RING (10) with clean engine oil (Material No.V10-039) and install it on the oil tube (6) (Ref. AMM TASK 70-23-13-911-010).
(2) Attach the oil tube to the fuel-cooled IDG oil-cooler with the bolts (9).
(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).
(4) Lubricate the new AIPC 24-21-42-80-070 PACKING (8) with clean engine oil (Material No.V10-039) and install it to the oil tube (5) (Ref. AMM TASK 70-23-13-911-010).
(5) Attach the oil tube to the fuel-cooled IDG oil-cooler with the bolts (7).
(6) 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 24-21-49-420-058-A ** ON A/C NOT FOR ALL

B. Installation of the Oil Tubes on the IDG

CAUTION: MAKE SURE THAT THE TUBES CANNOT TWIST. DAMAGE TO THE TUBES CAN OCCUR IF THEY DO TWIST.

CAUTION: MAKE SURE THAT THE COUPLINGS DO NOT TWIST. DAMAGE TO THE IDG BOSSES CAN OCCUR IF YOU DO NOT HOLD THE COUPLINGS.

(1) Lighly lubricate the end fittings on the oil tubes and the couplings with engine oil (Material No.V10-039) (Ref. AMM TASK 70-30-00-918-010).
(2) Connect the oil inlet tube (1) to the coupling (3).
(3) Connect the oil outlet tube (2) to the coupling (4).
(4) Put the oil tube (11) in the correct position for installation between the tube (5) and tube (1).
(5) Put the oil tube (12) in to the correct position for installation between the tube (6) and tube (2).
(6) Tighten the tubes on the connectors with your hand.
(7) At the gearbox bracket (13), align the spacer (19) and clip (17) and install the bolt (15).
(8) At the gearbox bracket (13), align the spacer (18) and clip (16) and install the bolt (14).
(9) Hold the tube (11) and TORQUE the oil inlet tube (1) to between 945 and 844 lbf.in (10.68 and 9.54 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(10) Hold the tube (12) and TORQUE the oil outlet tube (2) to between 680 and 620 lbf.in (7.68 and 7.01 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(11) Hold the tube (5) and TORQUE the oil tube (11) to between 945 and 844 lbf.in (10.68 and 9.54 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(12) Hold the tube (6) and TORQUE the oil tube (12) to between 680 and 620 lbf.in (7.68 and 7.01 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(13) Hold the oil outlet coupling (4) with a wrench and TORQUE the tube (2) to between 680 and 620 lbf.in (7.68 and 7.01 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(14) Hold the oil inlet coupling (3) with a wrench and TORQUE the tube (1) to between 945 and 855 lbf.in (10.68 and 9.66 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

Subtask 24-21-49-420-059-A ** ON A/C NOT FOR ALL

C. Installation of the two Harness and Tube Assemblies

CAUTION: MAKE SURE CLIP POINT 1125 AND CLIP POINT 1124 HOLD THE HARNESS INBOARD OF THE OIL TUBE. DAMAGE CAN OCCUR TO THE HARNESS IF HELD OUTBOARD.

(1) Make sure that the two harness/tube assemblies are loose, have no tension and are clear of the adjacent components and structure.
(2) Install the harness and tube assemblies at position F.
(a) Align the clip (22) with the support clip (23).
(b) Make sure that the two harness and tube assemblies are loose, have no tension and that there is a clearance between the adjacent components and structure.
(c) Install the bolt (24), washer(s) (21) and nut (20).
(3) Install the harness and tube assemblies at position G.
(a) Align the clip (27) with the support clip (28).
(b) Make sure that the two harness and tube assemblies are loose, have no tension and that there is a clearance between the adjacent components and structure.
(c) Install the bolt (29), washer(s) (26) and nut (25).
(4) Install the harness and tube assemblies at position H.
(a) Align the clip (33) with the support clip (32).
(b) Make sure that the two harness and tube assemblies are loose, have no tension and that there is a clearance between the adjacent components and structure.
(c) Install the bolt (30), washer(s) (31) and nut (34).
(5) Install the harness and tube assemblies at position J.
(a) Align the clip (36) with the lug.
(b) Make sure that the two harness and tube assemblies are loose, have no tension and that there is a clearance between the adjacent components and structure.
(c) Install the bolt (38), washer (37) (if applicable) and nut (35).

Subtask 24-21-49-612-053-A ** ON A/C NOT FOR ALL

D. Filling of the IDG with Oil
(1) Fill the IDG with oil (Ref. AMM TASK 12-13-24-612-011).

Subtask 24-21-49-210-055-A ** ON A/C NOT FOR ALL

E. Visual Inspection for Oil Leaks
(1) Do a visual inspection for oil leaks at the IDG and the oil tubes. Leaks are not permitted.

Subtask 24-21-49-865-058-A ** ON A/C NOT FOR ALL

F. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 4000XU (IDG) FOR FIN: 1000EM1 (ENGINE1)
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG1/DISC	1XT	T24
FOR FIN: 4000XU (IDG) FOR FIN: 1000EM2 (ENGINE2)
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/IDG2/DISC	2XT	T25

Subtask 24-21-49-790-050-A ** ON A/C NOT FOR ALL

G. Oil Leak Test
(1) Do an oil leak test at the IDG and the oil tubes (Ref. AMM TASK 71-00-00-710-017). Leaks are not permitted.

5. Close-up
Subtask 24-21-49-410-054-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 cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.03.31 23:21:11 UTC