Installation of the Oil Tank [CFMI]

TASK 79-11-10-400-001-A
Installation of the Oil Tank

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	WARNING NOTICE(S)
No specific	Torque wrench: range to between 50 and 45 lbf.in (0.57 and 0.51 m.daN )
No specific	Torque wrench: range to between 100 and 95 lbf.in (1.13 and 1.07 m.daN )
No specific	Torque wrench: range to between 105 and 95 lbf.in (1.19 and 1.07 m.daN )
No specific	Torque wrench: range to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
No specific	Torque wrench: range to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2101)	graphite grease
(Material No.CP2442)	engine oil

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
40	COTTER PIN	AIPC 79-11-10-01-010
30	O-RING	AIPC 79-11-10-01-260

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-13-79-610-001-A	Check Oil Level and Replenish
TASK 12-13-79-610-001-A-01	Check Oil Level and Replenish (Pressure Filling)
TASK 70-21-00-918-001-A	Seals (Preformed Packings and O-rings) and Gaskets
TASK 71-00-00-710-006-A	Minimum Idle Check
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
TASK 79-00-00-210-005-A	Visual Inspection of the Oil System
TASK 79-31-15-400-040-A	Installation of the Oil Quantity Transmitter
Removal/Installation of the Oil Tank ** ON A/C NOT FOR ALL
Removal/Installation of the Oil Tank ** ON A/C NOT FOR ALL
Removal/Installation of the Lug-mountings ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 79-11-10-860-050-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 79-11-10-010-053-A ** ON A/C NOT FOR ALL

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

4. Procedure
Subtask 79-11-10-420-056-A ** ON A/C NOT FOR ALL

A. Installation of the pins on the Oil Tank

Removal/Installation of the Lug-mountings ** ON A/C NOT FOR ALL

NOTE: Do these steps in case of the replacement of the oil tank (40).

(1) Lubricate the 2 new O-rings (30) with engine oil (Material No.CP2442) . Install new AIPC 79-11-10-01-260 O-RING (30) onto each pin (20).
(2) Lubricate the threads of the pins (20) with engine oil (Material No.CP2442) . Install pins (20) into the oil tank (40) recesses.
(3) Lubricate the threads of the bolts (10) with engine oil (Material No.CP2442) . Install the 4 bolts (10) on each pin (20).
(4) TORQUE the bolts (10) to between 105 and 95 lbf.in (1.19 and 1.07 m.daN )

Subtask 79-11-10-420-050-A ** ON A/C NOT FOR ALL

B. Installation of the Oil Tank.
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Set the oil tank (110) in the correct position on the engine.
(4) Attach the oil tank upper mount as follows:
(a) Lubricate the threads of the shoulder-headed pin (50) with graphite grease (Material No.CP2101) .
(b) Install the shoulder-headed pin (50), head rearwards, the washer (250) and the nut (240).
(c) TORQUE the nut (240) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )

.
(d) Install a new AIPC 79-11-10-01-010 COTTER PIN (40) to safety the nut (240).

NOTE: If necessary, you can loosen the nut lightly to clear first slot and help the insertion of the cotter pin.

(5) Attach the oil tank lower mounts as follows:
(a) Lubricate the threads of the oil tank pins with graphite grease (Material No.CP2101) .
(b) Install the shock absorbers (80) and (120) on the oil tank mounting pins. install the nuts (70) and (160). Tighten the nuts by hand.
(c) Lubricate the threads of bolts (90) with graphite grease (Material No.CP2101) .
(d) Set the oil tank in the correct position and engage the dowel pins (60) of the shock absorbers in the recesses of the brackets.
(e) Install the bolts (90).
(f) TORQUE the bolts (90) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )

.
(g) TORQUE the nuts (70) and (160) to between 100 and 95 lbf.in (1.13 and 1.07 m.daN )

.
(6) Attach the bonding strip (220) as follows:
(a) Lubricate the threads of the bolt (190) with graphite grease (Material No.CP2101) .
(b) Attach the bonding strip to the hole No. 79 of the flange E, with the bolt (190), the washer (260) and the nut (230).
(c) TORQUE the nut (230) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )

.
(7) Install the tubes/hoses to the oil tank, as follows:

CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:

ONE WRENCH TO HOLD THE UNION, AND
ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.

THIS PREVENTS DAMAGE TO THE PARTS.

(a) Remove the blanking caps from tubes and hoses and from the oil tank ports and nipples.
(b) Inspect gaskets (30), (130) and (210) before installation (Ref. AMM TASK 70-21-00-918-001). Replace them if necessary.
(c) Lubricate gaskets with engine oil (Material No.CP2442) .
(d) Lubricate the threads of bolts (10), (140) and (170) with graphite grease (Material No.CP2101) .
(e) Make sure that the mating faces are clean and in good condition.
(f) Install gaskets (30), (130) and (210) and connect the vent hose (20) the suction hose (150) and the discharge hose (180) to the oil tank (110) with bolts (10), (140) and (170).
(g) TORQUE the bolts to between 50 and 45 lbf.in (0.57 and 0.51 m.daN )

.
(h) Lubricate the threads of the oil tank nipples with engine oil (Material No.CP2442) .
(i) Connect the drain tube (100) and the hose (200) to the nipples.
(j) TORQUE the coupling nuts to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(8) Install the oil quantity transmitter (Ref. AMM TASK 79-31-15-400-040).

Subtask 79-11-10-610-050-A ** ON A/C NOT FOR ALL

C. Fill tank to full mark (Ref. AMM TASK 12-13-79-610-001).

Subtask 79-11-10-710-050-A ** ON A/C NOT FOR ALL

D. Operate engine at ground idle or above for a minimum of 3 minutes and check for leaks (Ref. AMM TASK 71-00-00-710-006) and (Ref. AMM TASK 79-00-00-210-005).

Subtask 79-11-10-610-051-A ** ON A/C NOT FOR ALL

E. Fill tank to full mark (Ref. AMM TASK 12-13-79-610-001).

5. Close-up
Subtask 79-11-10-410-050-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 12:58:46 UTC