Installation of the Oil Tank [CFMB]
TASK 79-11-10-400-005-A
Installation of the Oil Tank
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 79-11-10-860-051-A ** ON A/C NOT FOR ALL
Subtask 79-11-10-420-055-A ** ON A/C NOT FOR ALL
Subtask 79-11-10-410-058-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:39:02 UTC
Installation of the Oil Tank
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.CP1039) | acetone |
| (Material No.CP1041) | isopropyl alcohol |
| (Material No.CP2010) | white spirit |
| (Material No.CP2011) | stoddard solvent |
| (Material No.CP2101) | graphite grease |
| (Material No.CP2171) | Molykote U-n |
| (Material No.CP2338) | brisal-OX |
| (Material No.CP2442) | engine oil |
| (Material No.CP2559) | ardrox 552 |
| (Material No.CP2560) | turco ind 79 |
| (Material No.CP2566) | mag-chem teksol |
| (Material No.CP2584) | degreasol 99 R |
| (Material No.CP2656) | mag-chem skysol |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 220 | COTTER PIN | AIPC 79-11-10-01-010 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-13-79-610-002-A | Check oil level and replenish Check Pop Out Indicator of EMCD (Electrical Master Chip Detector) |
| TASK 12-13-79-610-002-A-01 | Check oil level and replenish (Pressure Filling) |
| 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 |
| TASK 79-00-00-210-003-A | Visual Inspection of the Oil System |
| TASK 79-31-15-400-041-A | Installation of the Oil Quantity Transmitter |
Subtask 79-11-10-860-051-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 79-11-10-010-060-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. 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(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
Subtask 79-11-10-420-055-A ** ON A/C NOT FOR ALL
A. 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 (30) in the correct position on the engine.
(4) Attach the oil tank (30) to the upper mount as follows:
(a) Lubricate the threads and the shank of the shoulder-headed pin (130) with Molykote U-n (Material No.CP2171) .
(b) Install the shoulder-headed pin (130), head rearwards, and the nut (150).
(c) TORQUE the nut (150) to between 135 and 70 lbf.in (1.53 and 0.79 m.daN )
.
(d) Install a new AIPC 79-11-10-01-010 COTTER PIN (220) to safety the nut (150).
(a) Lubricate the threads, the shank of the shoulder-headed pins (170) and the mating faces of the dampers (160) with Molykote U-n (Material No.CP2171) .
(b) Install the dampers (160) on the forward and rearward brackets attached to flanges D/E and G.
(c) Position the lower mounts of the oil tank (30) on the dampers (160) and attach the assembly with the shoulder-headed pins (170).
(d) TORQUE the 2 shoulder-headed pins (170) at the same time, to between 360 and 330 lbf.in (4.07 and 3.73 m.daN )
.
(6) Install the bonding strip (180) as follows:
(b) Lubricate the mating faces of the cleaned items with brisal-OX (Material No.CP2338) .
(c) Attach the bonding strip (180) to the rear face of the flange E, at hole No. 78, with the bolt (190) and spacer (200) (the head of bolt and the spacer forwards), and the nut (210).
(d) TORQUE the nut (210) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
.
(7) Install tubes and hoses on the oil tank as follows.
(a) Make sure that gaskets (40, 90, 110) are serviceable and that the mating faces of tubes and hoses (50, 70, 120) and of the oil tank (30) are clean.
(b) Lubricate the gaskets (40, 90, 110) with engine oil (Material No.CP2442) .
(c) Lubricate the threads of bolts (10, 60, 80) with graphite grease (Material No.CP2101) .
(d) Attach the oil supply tube (50) and the gasket (40) to the oil tank (30), with 4 bolts (60).
(e) Attach the discharge hose (70) and the gasket (90) to the oil tank (30), with 4 bolts (80).
(f) Attach the vent hose (120) and the gasket (110) to the oil tank (30), with 4 bolts (10).
(g) TORQUE the bolts (10, 80) to between 55 and 45 lbf.in (0.62 and 0.51 m.daN )
.
(h) TORQUE the bolt (60) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
.
(i) Lubricate the threads of the oil tank nipple and of the oil scupper nipple with engine oil (Material No.CP2442) .
(8) Connect the Drain Tube.
(b) TORQUE the coupling nuts to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )
.
(9) Install the oil quantity transmitter (Ref. AMM TASK 79-31-15-400-041).
Subtask 79-11-10-869-050-A ** ON A/C NOT FOR ALL (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 (30) in the correct position on the engine.
(4) Attach the oil tank (30) to the upper mount as follows:
(a) Lubricate the threads and the shank of the shoulder-headed pin (130) with Molykote U-n (Material No.CP2171) .
(b) Install the shoulder-headed pin (130), head rearwards, and the nut (150).
(c) TORQUE the nut (150) to between 135 and 70 lbf.in (1.53 and 0.79 m.daN )
. (d) Install a new AIPC 79-11-10-01-010 COTTER PIN (220) to safety the nut (150).
NOTE: If necessary, you can loosen the nut slightly to clear the first slot, and help the insertion of the cotter pin (220).
(5) Install the oil tank lower mounts as follows: (a) Lubricate the threads, the shank of the shoulder-headed pins (170) and the mating faces of the dampers (160) with Molykote U-n (Material No.CP2171) .
(b) Install the dampers (160) on the forward and rearward brackets attached to flanges D/E and G.
(c) Position the lower mounts of the oil tank (30) on the dampers (160) and attach the assembly with the shoulder-headed pins (170).
(d) TORQUE the 2 shoulder-headed pins (170) at the same time, to between 360 and 330 lbf.in (4.07 and 3.73 m.daN )
. (6) Install the bonding strip (180) as follows:
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(a) Clean the spacer (200), the bolt (190), the nut (210), the lug of the bonding strip (180) and the hole No. 78 of the flange E, with white spirit (Material No.CP2010) or stoddard solvent (Material No.CP2011) or acetone (Material No.CP1039) or ardrox 552 (Material No.CP2559) or turco ind 79 (Material No.CP2560) or mag-chem teksol (Material No.CP2566) or degreasol 99 R (Material No.CP2584) or mag-chem skysol (Material No.CP2656) or isopropyl alcohol (Material No.CP1041) . (b) Lubricate the mating faces of the cleaned items with brisal-OX (Material No.CP2338) .
(c) Attach the bonding strip (180) to the rear face of the flange E, at hole No. 78, with the bolt (190) and spacer (200) (the head of bolt and the spacer forwards), and the nut (210).
(d) TORQUE the nut (210) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
. (7) Install tubes and hoses on the oil tank as follows.
(a) Make sure that gaskets (40, 90, 110) are serviceable and that the mating faces of tubes and hoses (50, 70, 120) and of the oil tank (30) are clean.
(b) Lubricate the gaskets (40, 90, 110) with engine oil (Material No.CP2442) .
(c) Lubricate the threads of bolts (10, 60, 80) with graphite grease (Material No.CP2101) .
(d) Attach the oil supply tube (50) and the gasket (40) to the oil tank (30), with 4 bolts (60).
(e) Attach the discharge hose (70) and the gasket (90) to the oil tank (30), with 4 bolts (80).
(f) Attach the vent hose (120) and the gasket (110) to the oil tank (30), with 4 bolts (10).
(g) TORQUE the bolts (10, 80) to between 55 and 45 lbf.in (0.62 and 0.51 m.daN )
. (h) TORQUE the bolt (60) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
.(i) Lubricate the threads of the oil tank nipple and of the oil scupper nipple with engine oil (Material No.CP2442) .
(8) Connect the Drain Tube.
CAUTION:
USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
(a) Connect the drain tube (20) to the oil scupper nipple. Connect the hose (100) to the oil tank nipple. - ONE WRENCH TO HOLD THE UNION, AND
- ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
(b) TORQUE the coupling nuts to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )
. (9) Install the oil quantity transmitter (Ref. AMM TASK 79-31-15-400-041).
B. Make sure that the work area is clean and clear of tools and other items.
Subtask 79-11-10-610-052-A ** ON A/C NOT FOR ALL Subtask 79-11-10-942-050-A ** ON A/C NOT FOR ALL D. Remove the WARNING NOTICE(S).
Subtask 79-11-10-710-051-A ** ON A/C NOT FOR ALL E. 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 79-00-00-210-003).
Subtask 79-11-10-610-053-A ** ON A/C NOT FOR ALL 5. Close-upSubtask 79-11-10-410-058-A ** ON A/C NOT FOR ALL
Oil Tank