DOC AIRBUS | AMM A320FInstallation of the Hydraulic Pump Drain Tube [CFMI]
TASK 71-73-49-400-047-A
Installation of the Hydraulic Pump Drain Tube
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 71-73-49-860-072-A ** ON A/C NOT FOR ALL
Subtask 71-73-49-420-079-A ** ON A/C NOT FOR ALL
Subtask 71-73-49-410-080-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:24:03 UTC
Installation of the Hydraulic Pump Drain Tube
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| 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 |
Tubes - Oil, Hydraulic and Water DrainSubtask 71-73-49-860-072-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 71-73-49-010-111-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 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 71-73-49-420-079-A ** ON A/C NOT FOR ALL
A. Installation of the Hydraulic Pump Drain Tube.
(1) Remove the protective covers from the drain reservoir, the hydraulic pump, and the drain tube (105).
(2) Connect the hydraulic pump drain tube (105) to the hydraulic pump. Do not torque the coupling at this time.
(3) Connect the hydraulic pump drain tube (105) to the drain reservoir. Do not torque the coupling at this time.
(4) Attach the drain tube (105) to the accessory gearbox bracket with the clamp (5), the screw (10), the washer (15), and the nut (20).
(5) Make sure that the hydraulic pump drain tube (105) is aligned correctly on the engine.
(6) TORQUE the nut (20) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )
.
(7) TORQUE the coupling nuts on the two ends of the tube (105) to between 250 and 200 lbf.in (2.83 and 2.26 m.daN ).
5. Close-up(1) Remove the protective covers from the drain reservoir, the hydraulic pump, and the drain tube (105).
(2) Connect the hydraulic pump drain tube (105) to the hydraulic pump. Do not torque the coupling at this time.
(3) Connect the hydraulic pump drain tube (105) to the drain reservoir. Do not torque the coupling at this time.
(4) Attach the drain tube (105) to the accessory gearbox bracket with the clamp (5), the screw (10), the washer (15), and the nut (20).
(5) Make sure that the hydraulic pump drain tube (105) is aligned correctly on the engine.
(6) TORQUE the nut (20) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )
. (7) TORQUE the coupling nuts on the two ends of the tube (105) to between 250 and 200 lbf.in (2.83 and 2.26 m.daN )
. Subtask 71-73-49-410-080-A ** ON A/C NOT FOR ALL