DOC AIRBUS | AMM A320FInstallation of the Fuel Pump and Filter Assembly [CFMB]
TASK 73-11-10-400-003-A
Installation of the Fuel Pump and Filter 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 73-11-10-860-053-A ** ON A/C NOT FOR ALL
Subtask 73-11-10-420-061-A ** ON A/C NOT FOR ALL
Subtask 73-11-10-410-058-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:57:32 UTC
Installation of the Fuel Pump and Filter 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 |
|---|---|---|
| 80 | O-RING | AIPC 73-11-10-01-050 |
| 200 | PREFORMED PACKING | AIPC 73-11-10-01-070 |
| 50 | O-RING | AIPC 73-11-10-01-120 |
| 100 | NIPPLE | AIPC 73-11-49-01-010 |
| 110 | NIPPLE | AIPC 73-11-49-01-010 |
| 120 | PREFORMED PACKING | AIPC 73-11-49-01-020 |
| 90 | PREFORMED PACKING | AIPC 73-11-49-01-020 |
| REFERENCE | DESIGNATION |
|---|---|
| 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 70-21-00-918-002-A | Seals (Preformed Packings and O-rings) and Gaskets |
| TASK 71-00-00-710-002-B | Wet Motoring Check |
| 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 72-63-00-000-002-A | Removal of the Handcranking Drive Cover |
| TASK 72-63-00-400-002-A | Installation of the Handcranking Drive Cover |
| TASK 73-11-20-400-002-A | Installation of the Servo Fuel Heater |
| TASK 73-11-49-400-041-A | Installation of the Fuel Tubes |
| TASK 73-21-10-400-002-A | Installation of the Hydromechanical Unit (HMU) |
| TASK 73-29-00-710-040-B | Operational Test of the FADEC on the Ground (with Engine Motoring) |
| TASK 73-29-00-710-040-B-02 | Operational Test of the FADEC on the Ground (with Engine Non motoring) |
| TASK 79-21-20-400-002-A | Installation of the Main Oil/Fuel Heat Exchanger |
Fuel Pump and Filter AssemblySubtask 73-11-10-860-053-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 73-11-10-865-061-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 73-11-10-010-067-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 73-11-10-420-061-A ** ON A/C NOT FOR ALL
A. Installation of the Fuel Pump
(1) Remove the blanking plugs from the disconnected line ends.
(2) Apply a thin layer of engine oil (Material No.CP2442) to a new AIPC 73-11-10-01-050 O-RING (80) and install it on groove of the fuel pump drive shaft.
PRE SB CFM56-5 72-094
(3) Lubricate the re-usable, or new seal (70) with engine oil (Material No.CP2442) and install on fixed part of QAD ring.
POST SB CFM56-5 72-094
(4) Install the seal ring assembly (70) as follows:
(a) If necessary, install a new AIPC 73-11-10-01-070 PREFORMED PACKING (200) on the support (190).
(b) Lubricate the seal ring assembly (70) with engine oil (Material No.CP2442) .
(c) Install the seal ring assembly (70) on fixed part of QAD ring.
END OF SB CFM56-5 72-094
(5) Make sure that the 3 tabs of the seal are correctly locked by the lugs of the adapter flange.
(6) Apply a thin layer of engine oil (Material No.CP2442) to the new AIPC 73-11-49-01-020 PREFORMED PACKING (90) and AIPC 73-11-49-01-020 PREFORMED PACKING (120) and the threads of the nipples (100 and 110).
(7) Install the O-rings (90 and 120) on the nipples (100 and 110). Install the AIPC 73-11-49-01-010 NIPPLE (110) and AIPC 73-11-49-01-010 NIPPLE (100) on the fuel filter housing. TORQUE the nipples to between 160 and 150 lbf.in (1.81 and 1.70 m.daN )
.
(8) Apply a thin layer of engine oil (Material No.CP2442) to the new AIPC 73-11-10-01-120 O-RING (50) and the threads of the nipple (60).
(9) Install the O-ring (50) on the nipple (60). Install the nipple on the fuel pump. TORQUE nipple to between 400 and 350 lbf.in (4.52 and 3.96 m.daN ).
(10) Remove the cover from the handcranking drive pad (Ref. AMM TASK 72-63-00-000-002).
Subtask 73-11-10-820-051-A ** ON A/C NOT FOR ALL (1) Remove the blanking plugs from the disconnected line ends.
(2) Apply a thin layer of engine oil (Material No.CP2442) to a new AIPC 73-11-10-01-050 O-RING (80) and install it on groove of the fuel pump drive shaft.
PRE SB CFM56-5 72-094
(3) Lubricate the re-usable, or new seal (70) with engine oil (Material No.CP2442) and install on fixed part of QAD ring.
POST SB CFM56-5 72-094
(4) Install the seal ring assembly (70) as follows:
(a) If necessary, install a new AIPC 73-11-10-01-070 PREFORMED PACKING (200) on the support (190).
(b) Lubricate the seal ring assembly (70) with engine oil (Material No.CP2442) .
(c) Install the seal ring assembly (70) on fixed part of QAD ring.
END OF SB CFM56-5 72-094
(5) Make sure that the 3 tabs of the seal are correctly locked by the lugs of the adapter flange.
(6) Apply a thin layer of engine oil (Material No.CP2442) to the new AIPC 73-11-49-01-020 PREFORMED PACKING (90) and AIPC 73-11-49-01-020 PREFORMED PACKING (120) and the threads of the nipples (100 and 110).
(7) Install the O-rings (90 and 120) on the nipples (100 and 110). Install the AIPC 73-11-49-01-010 NIPPLE (110) and AIPC 73-11-49-01-010 NIPPLE (100) on the fuel filter housing. TORQUE the nipples to between 160 and 150 lbf.in (1.81 and 1.70 m.daN )
. (8) Apply a thin layer of engine oil (Material No.CP2442) to the new AIPC 73-11-10-01-120 O-RING (50) and the threads of the nipple (60).
(9) Install the O-ring (50) on the nipple (60). Install the nipple on the fuel pump. TORQUE nipple to between 400 and 350 lbf.in (4.52 and 3.96 m.daN )
. (10) Remove the cover from the handcranking drive pad (Ref. AMM TASK 72-63-00-000-002).
B. Align the Pump Drive Shaft
(1) Insert a 0.75 in. drive turning handle in the handcranking drive pad.
(2) Align the pump drive shaft with the drive recess in the Auxiliary Gearbox (AGB) using the 0.75 in. drive turning handle.
Subtask 73-11-10-420-058-A ** ON A/C NOT FOR ALL (1) Insert a 0.75 in. drive turning handle in the handcranking drive pad.
(2) Align the pump drive shaft with the drive recess in the Auxiliary Gearbox (AGB) using the 0.75 in. drive turning handle.
C. Installation of the Fuel Pump and Filter Assembly
(2) Apply a thin layer of graphite grease (Material No.CP2101) to the QAD bolt (150) threads. Make sure that the ball seat washer (180) is installed under the QAD bolt head (150). Install the bolt (150) with the washer (180) in the bracket. Install the retaining packing (160) on the bolt (150).
(3) Attach the package as follows:
(a) Turn the QAD ring (170) clockwise until it is correctly installed.
(b) TORQUE the QAD bolt (150) to between 320 and 310 lbf.in (3.62 and 3.50 m.daN )
(c) Radially tap the exposed outer diameter of the QAD (170) to set the ring to its correct position.
(d) Do the steps (b) and (c) two more times.
(e) Check the QAD ring seating:
(4) Loosen and TORQUE the QAD bolt (150) to between 230 and 190 lbf.in (2.60 and 2.15 m.daN ). Safety with a CP8001 lockwire 0.032 in. (0.8 mm) dia. CP8002 lockwire 0.032 in. (0.8 mm) dia
(5) Install the handcranking drive pad cover (Ref. AMM TASK 72-63-00-400-002).
(6) Connect the fuel supply tube (20) to the fuel pump as follows:
(a) Check for cleanliness of mating faces.
(b) Check used gasket (130) for damage (Ref. AMM TASK 70-21-00-918-002), replace it if necessary.
(c) Apply a thin layer of engine oil (Material No.CP2442) to the gasket (130) and install it.
(d) Apply a thin layer of graphite grease (Material No.CP2101) to the threads of the bolts (140) and attach the tube. TORQUE the bolts to between 110 and 98 lbf.in (1.24 and 1.11 m.daN ).
(7) Connect the fuel filter differential pressure tubes as follows:
(a) Remove the blanking caps and plugs.
(b) Apply a thin layer of engine oil (Material No.CP2442) to the nipples on the fuel filter housing and connect the tubes (Ref. AMM TASK 73-11-49-400-041).
(8) Install the aft sump oil supply tube from the AGB as follows:
(b) Apply a thin layer of graphite grease (Material No.CP2101) to the bolt threads and secure the tube to the fuel pump bracket using the clamp. Hand-tighten the bolt.
(c) TORQUE the connecting nuts to between 300 and 270 lbf.in (3.39 and 3.05 m.daN ) and the bolt to between 50 and 45 lbf.in (0.57 and 0.51 m.daN ) .
(9) Install the oil/fuel heat exchanger (Ref. AMM TASK 79-21-20-400-002).
(10) Install the servo fuel heater (Ref. AMM TASK 73-11-20-400-002).
(11) Install the HMU (Ref. AMM TASK 73-21-10-400-002).
Subtask 73-11-10-942-052-A ** ON A/C NOT FOR ALL CAUTION:
CAREFULLY ALIGN THE PUMP WITH THE AGB TO PREVENT SPLINE DAMAGE.
MAKE SURE THAT THE LOCATING DOWELS ARE CORRECTLY ALIGNED.
CAUTION:
DURING INSTALLATION, KEEP THE DRIVE SHAFT PERPENDICULAR TO THE AGB MOUNTING FLANGE, MAKE SURE THAT THERE IS NO LOAD ON THE DRIVE SHAFT.
(1) Engage the pump drive shaft into its AGB drive recess. (2) Apply a thin layer of graphite grease (Material No.CP2101) to the QAD bolt (150) threads. Make sure that the ball seat washer (180) is installed under the QAD bolt head (150). Install the bolt (150) with the washer (180) in the bracket. Install the retaining packing (160) on the bolt (150).
(3) Attach the package as follows:
(a) Turn the QAD ring (170) clockwise until it is correctly installed.
(b) TORQUE the QAD bolt (150) to between 320 and 310 lbf.in (3.62 and 3.50 m.daN )
(c) Radially tap the exposed outer diameter of the QAD (170) to set the ring to its correct position.
(d) Do the steps (b) and (c) two more times.
(e) Check the QAD ring seating:
- Make sure that the gap (DIM. A) between the boss of the QAD ring (170) and the flange of the QAD ring support is between 0.25 in. (6.3500 mm) and 1 in. (25.4000 mm).
NOTE: If necessary, use the minimum tightening TORQUE to get the minimum gap (DIM. A).
1 If the gap (DIM. A) is out of these limits, change the QAD ring (170) and repeat the QAD installation procedure. (4) Loosen and TORQUE the QAD bolt (150) to between 230 and 190 lbf.in (2.60 and 2.15 m.daN )
. Safety with a (5) Install the handcranking drive pad cover (Ref. AMM TASK 72-63-00-400-002).
(6) Connect the fuel supply tube (20) to the fuel pump as follows:
(a) Check for cleanliness of mating faces.
(b) Check used gasket (130) for damage (Ref. AMM TASK 70-21-00-918-002), replace it if necessary.
(c) Apply a thin layer of engine oil (Material No.CP2442) to the gasket (130) and install it.
(d) Apply a thin layer of graphite grease (Material No.CP2101) to the threads of the bolts (140) and attach the tube. TORQUE the bolts to between 110 and 98 lbf.in (1.24 and 1.11 m.daN )
. (7) Connect the fuel filter differential pressure tubes as follows:
(a) Remove the blanking caps and plugs.
(b) Apply a thin layer of engine oil (Material No.CP2442) to the nipples on the fuel filter housing and connect the tubes (Ref. AMM TASK 73-11-49-400-041).
(8) Install the aft sump oil supply tube from the AGB as follows:
CAUTION:
USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
(a) Apply a thin layer of engine oil (Material No.CP2442) to the nipples and install the tube. Hand-tighten the nuts. - ONE WRENCH TO HOLD THE UNION, AND
- ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
(b) Apply a thin layer of graphite grease (Material No.CP2101) to the bolt threads and secure the tube to the fuel pump bracket using the clamp. Hand-tighten the bolt.
(c) TORQUE the connecting nuts to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )
and the bolt to between 50 and 45 lbf.in (0.57 and 0.51 m.daN ) . (9) Install the oil/fuel heat exchanger (Ref. AMM TASK 79-21-20-400-002).
(10) Install the servo fuel heater (Ref. AMM TASK 73-11-20-400-002).
(11) Install the HMU (Ref. AMM TASK 73-21-10-400-002).
D. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).
Subtask 73-11-10-865-057-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).
E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 73-11-10-710-054-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 |
F. Operational Test
(1) Do a wet motoring check (Ref. AMM TASK 71-00-00-710-002).
(2) Do a minimum idle check (Ref. AMM TASK 71-00-00-710-006) and a check for leaks.
(3) Do a FADEC ground test (Ref. AMM TASK 73-29-00-710-040).
(4) Remove containers under engine.
5. Close-up(1) Do a wet motoring check (Ref. AMM TASK 71-00-00-710-002).
(2) Do a minimum idle check (Ref. AMM TASK 71-00-00-710-006) and a check for leaks.
(3) Do a FADEC ground test (Ref. AMM TASK 73-29-00-710-040).
(4) Remove containers under engine.
Subtask 73-11-10-410-058-A ** ON A/C NOT FOR ALL
A. Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 73-11-10-862-052-A ** ON A/C NOT FOR ALL (1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR