W DOC AIRBUS | AMM A320F

Installation of the Main Fuel Supply Hose [CFMB]

TASK 73-11-11-400-041-A
Installation of the Main Fuel Supply Hose

ZONE: 400
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
ACCESS PLATFORM 1M(3 FT)
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 25 and 20 lbf.in (0.28 and 0.23 m.daN ) T
No specific
Torque wrench: range to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CP8001)
lockwire 0.032 in. (0.8 mm) dia.
(Material No.CP8002)
lockwire 0.032 in. (0.8 mm) dia
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
40
GASKET
AIPC 73-11-11-01-070
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
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 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
F Main Fuel Supply Hose
3. Job Set-up
Subtask 73-11-11-860-050-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).
   (3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
Subtask 73-11-11-865-057-A ** ON A/C NOT FOR ALL
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VUFUEL/LP VALVE/MOT1/ENG11QGA08
121VUFUEL/LP VALVE/MOT2/ENG13QGM25
FOR FIN: 1000EM2 (ENGINE2)
49VUFUEL/LP VALVE/MOT1/ENG22QGA09
121VUFUEL/LP VALVE/MOT2/ENG24QGM26
Subtask 73-11-11-010-051-A ** ON A/C NOT FOR ALL
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
Subtask 73-11-11-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Main Fuel Supply Hose
   (1) Remove the protective covers from the main fuel supply hose (25), the fuel manifold duct and the fluid disconnect panel.
   (2) Attach the hose (25) and the AIPC 73-11-11-01-070 GASKET (40) to the fluid disconnect panel with the bolts (30) and the washers (35) (see Detail B).
   (3) TORQUE the bolts (30) to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) T.
   (4) Safety the bolts (30) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
   (5) Attach the hose (25) and the AIPC 73-11-11-01-070 GASKET (40) to the fuel manifold duct with the bolts (30) and the washers (35) (see Detail G).
   (6) TORQUE the bolts (30) to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) T.
   (7) Safety the bolts (30) CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
   (8) Attach the hose (25) to the upper bracket with the clamp (10), the bolts (5), the washers (15) and the nuts (20).
   (9) Attach the hose (25) to the middle bracket with the clamp (10) and the bolts (5).
   (10) Install the clamp (10) 1.0 inch (25,4 mm) above the lower flange on the hose (25) (see Detail F).
   (11) Attach the hose (25) to the lower bracket with the clamp (10), the bolts (5) and the nuts (20).
   (12) TORQUE the bolts (5) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN ) T.
Subtask 73-11-11-861-055-A ** ON A/C NOT FOR ALL
B. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
Subtask 73-11-11-865-051-A ** ON A/C NOT FOR ALL
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VUFUEL/LP VALVE/MOT1/ENG11QGA08
121VUFUEL/LP VALVE/MOT2/ENG13QGM25
FOR FIN: 1000EM2 (ENGINE2)
49VUFUEL/LP VALVE/MOT1/ENG22QGA09
121VUFUEL/LP VALVE/MOT2/ENG24QGM26
Subtask 73-11-11-710-050-A ** ON A/C NOT FOR ALL
D. Do this test
ACTION
RESULT
1.On the HYD/FUEL panel 40VU, push all the FUEL PUMPS pushbutton switches to activate the fuel pumps.
The OFF legends go off.
2.On the ENG panel 115VU, make sure that the ENG MODECRANK/NORM/IGN/START selector switch is set to NORM.

3.On the panel 115VU set the ENG MASTER 1(2) lever to ON.

4.On the engine, make sure that there are no leaks at connections.

5.On the HYD/FUEL panel 40VU, release the FUEL PUMPS pushbutton switches.
The OFF legends come on.
6.Set the ENG MASTER 1(2) lever to OFF.

Subtask 73-11-11-862-050-A ** ON A/C NOT FOR ALL
E. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
5. Close-up
Subtask 73-11-11-410-050-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 access platform(s).
   (4) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 02:57:39 UTC
"Aviabrain" 2025