DOC AIRBUS | AMM A320FInstallation of the Thrust Reverser Opening Tubes and Manifold [IAE]
TASK 78-36-49-400-010-A
Installation of the Thrust Reverser Opening Tubes and Manifold
This task supplies the information to install the thrust reverser opening actuator tubes and manifold. The procedure in this task is the same for both the left and the right thrust reverser halves.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 78-36-49-860-050-A ** ON A/C NOT FOR ALL
Subtask 78-36-49-420-050-A ** ON A/C NOT FOR ALL
Subtask 78-36-49-410-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:30:01 UTC
Installation of the Thrust Reverser Opening Tubes and Manifold
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
1. Reason for the JobThis task supplies the information to install the thrust reverser opening actuator tubes and manifold. The procedure in this task is the same for both the left and the right thrust reverser halves.
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 25 and 20 lbf.in (0.28 and 0.23 m.daN )  | |
| No specific | Torque wrench: range to between 70 and 63 lbf.in (0.79 and 0.71 m.daN ) | |
| No specific | Torque wrench: range to between 120 and 100 lbf.in (1.36 and 1.13 m.daN ) | |
| No specific | Torque wrench: range to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) | |
| No specific | Torque wrench: range to between 135 and 125 lbf.in (1.53 and 1.41 m.daN ) | |
| No specific | Torque wrench: range to between 145 and 135 lbf.in (1.64 and 1.53 m.daN ) | |
| IAE1N20009 | 1 | PUMP HYDRAULIC UNIT-REVERSER C-DUCT |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR, 461AL, 462AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 4 | PACKING | AIPC 78-36-49-80-060 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 70-23-11-911-013-A | General Torque Tightening Techniques |
| TASK 70-23-13-911-010-A | Procedures for the Installation of Preformed Packings |
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 71-13-00-410-010-A | Closing of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 78-30-00-040-012-A | Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance |
| TASK 78-30-00-440-012-A | Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance |
| TASK 78-32-00-010-010-A | Opening of the Thrust Reverser Halves |
| TASK 78-32-00-410-010-A | Closing of the Thrust Reverser Halves |
Opening Actuator Tubes and ManifoldSubtask 78-36-49-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to start the engine.
(2) On overhead maintenance panel 50VU:
(a) Make sure that the ON legend of ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to energize FADEC 1(2).
Subtask 78-36-49-010-052-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to start the engine.
(2) On overhead maintenance panel 50VU:
(a) Make sure that the ON legend of ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to energize FADEC 1(2).
B. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Make sure that the thrust reverser doors are open: (Ref. AMM TASK 78-32-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
Subtask 78-36-49-040-051-A ** ON A/C NOT FOR ALL (1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Make sure that the thrust reverser doors are open: (Ref. AMM TASK 78-32-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
C. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated (Ref. AMM TASK 78-30-00-040-012).
Subtask 78-36-49-630-050-A ** ON A/C NOT FOR ALL D. Remove the covers/caps/plugs from all of the openings.
4. ProcedureSubtask 78-36-49-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Hydraulic Hose
(1) Put the hydraulic hose (31) into the flexible hose cover (42).
(2) Put the hydraulic hose (31) with the flexible hose cover (42) onto the opening actuator (32) and put the hose cover elbow (38) over the pre-cooler port (37).
(3) Separate the halves of the upper end cover (44) at its flex-hinge and install the hose nut (43) on the opening actuator (32).
(4) Raise the lower end cover (28) at its flex hinge and hand-tighten the hose nut (29) on the elbow (30).
(5) Put the clamp (53) on the flexible hose cover (42).
(6) Attach the clamp (53) to the upper bumper with the washer (54) and the nut (55).
(7) Tighten the nut (55).
(8) Put the other end of the elbow (30) through the thrust reverser frame and tighten the nut (52) with your hand.
(9) Install the clamp (34), screw (33), washer (35) and nut (36) that attach the hose cover elbow (38) to the pre-cooler port (37).
(10) Install the clamp (41), screws (40) and washers (39) that attach the flexible hose cover (42) to the C-duct near the pre-cooler.
(11) TORQUE the hose nuts (29) to between 120 and 100 lbf.in (1.36 and 1.13 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
(a) Do not torque the hose nut (43) at this step.
(12) TORQUE the jam nut (52) on the elbow (30) (at the thrust reverser frame) to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ).
(13) TORQUE the nut (55) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN ).
(14) Install the screw (26) that attaches the lower end cover (28) to the C-duct.
Subtask 78-36-49-420-051-A ** ON A/C NOT FOR ALL (1) Put the hydraulic hose (31) into the flexible hose cover (42).
(2) Put the hydraulic hose (31) with the flexible hose cover (42) onto the opening actuator (32) and put the hose cover elbow (38) over the pre-cooler port (37).
(3) Separate the halves of the upper end cover (44) at its flex-hinge and install the hose nut (43) on the opening actuator (32).
(4) Raise the lower end cover (28) at its flex hinge and hand-tighten the hose nut (29) on the elbow (30).
(5) Put the clamp (53) on the flexible hose cover (42).
(6) Attach the clamp (53) to the upper bumper with the washer (54) and the nut (55).
(7) Tighten the nut (55).
(8) Put the other end of the elbow (30) through the thrust reverser frame and tighten the nut (52) with your hand.
(9) Install the clamp (34), screw (33), washer (35) and nut (36) that attach the hose cover elbow (38) to the pre-cooler port (37).
(10) Install the clamp (41), screws (40) and washers (39) that attach the flexible hose cover (42) to the C-duct near the pre-cooler.
(11) TORQUE the hose nuts (29) to between 120 and 100 lbf.in (1.36 and 1.13 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (a) Do not torque the hose nut (43) at this step.
(12) TORQUE the jam nut (52) on the elbow (30) (at the thrust reverser frame) to between 120 and 110 lbf.in (1.36 and 1.24 m.daN )
. (13) TORQUE the nut (55) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )
. (14) Install the screw (26) that attaches the lower end cover (28) to the C-duct.
B. Install the upper hydraulic tube (18)
(1) Put the upper hydraulic tube (18) in to position (Detail G).
(2) Install the upper tube nut (19) of the upper hydraulic tube (18) on to the elbow (30).
(3) Install the lower tube nut (19) of the upper hydraulic tube (18) on to the union (Detail D).
(4) Install the clamps (24), screws (21), washers (22) and nuts (17) that attach the upper hydraulic tube (18) to the brackets (25) and the C-duct (Detail E).
(5) TORQUE the tube nuts (19) on both ends of the upper hydraulic tube (18) to between 145 and 135 lbf.in (1.64 and 1.53 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
Subtask 78-36-49-420-052-A ** ON A/C NOT FOR ALL (1) Put the upper hydraulic tube (18) in to position (Detail G).
(2) Install the upper tube nut (19) of the upper hydraulic tube (18) on to the elbow (30).
(3) Install the lower tube nut (19) of the upper hydraulic tube (18) on to the union (Detail D).
(4) Install the clamps (24), screws (21), washers (22) and nuts (17) that attach the upper hydraulic tube (18) to the brackets (25) and the C-duct (Detail E).
(5) TORQUE the tube nuts (19) on both ends of the upper hydraulic tube (18) to between 145 and 135 lbf.in (1.64 and 1.53 m.daN )
(Ref. AMM TASK 70-23-11-911-013). C. Install the lower hydraulic tube (7)
(1) Put the lower hydraulic tube (7) in to position.
(2) Connect the upper tube nut (20) of the lower hydraulic tube (7) to the union. Do not torque the tube nut at this step.
(3) Install the clamp (24), screw (21) and washer (22) that attach the lower hydraulic tube (7) to the bracket (23) above the non-locking actuator.
(4) Remove the nuts (17), washers (16), spacers (14), screws (15) and clamps (13) that support the electrical harness.
(5) Attach the electrical harness and the lower hydraulic tube (7) to the brackets on both sides of the non-locking actuator with screws (15), washers (16), spacers (14), clamps (13) and nuts (17).
(6) Put the lower hydraulic tube (7) in to position on the two brackets (9) (Detail C).
(7) Install the two clamps (10), screws (12) and washers (11).
(8) TORQUE the tube nut (20) on the upper end of the lower hydraulic tube (7) to between 145 and 135 lbf.in (1.64 and 1.53 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
Subtask 78-36-49-420-054-A ** ON A/C NOT FOR ALL (1) Put the lower hydraulic tube (7) in to position.
(2) Connect the upper tube nut (20) of the lower hydraulic tube (7) to the union. Do not torque the tube nut at this step.
(3) Install the clamp (24), screw (21) and washer (22) that attach the lower hydraulic tube (7) to the bracket (23) above the non-locking actuator.
(4) Remove the nuts (17), washers (16), spacers (14), screws (15) and clamps (13) that support the electrical harness.
(5) Attach the electrical harness and the lower hydraulic tube (7) to the brackets on both sides of the non-locking actuator with screws (15), washers (16), spacers (14), clamps (13) and nuts (17).
(6) Put the lower hydraulic tube (7) in to position on the two brackets (9) (Detail C).
(7) Install the two clamps (10), screws (12) and washers (11).
(8) TORQUE the tube nut (20) on the upper end of the lower hydraulic tube (7) to between 145 and 135 lbf.in (1.64 and 1.53 m.daN )
(Ref. AMM TASK 70-23-11-911-013). D. Assemble the electrical harness to the lower hydraulic tube
SBN 78-0021
SBN 78-0021: Rework of thrust reverser wiring harness installation
(1) Attach the electrical harness to the lower hydraulic tube (7) near the non-locking actuator with the clamps (48), screw (50), washer (49) and nut (51).
Subtask 78-36-49-420-053-A ** ON A/C NOT FOR ALL SBN 78-0021
SBN 78-0021: Rework of thrust reverser wiring harness installation
(1) Attach the electrical harness to the lower hydraulic tube (7) near the non-locking actuator with the clamps (48), screw (50), washer (49) and nut (51).
E. Install the opening actuator manifold (3) (Detail B)
(1) Install the new AIPC 78-36-49-80-060 PACKING (4) (Ref. AMM TASK 70-23-13-911-010) on to the union (5).
(2) Install the union (5) with the packing (4) in to the opening on the actuator manifold (3).
(3) TORQUE the union (5) to between 135 and 125 lbf.in (1.53 and 1.41 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
(4) Put the manifold (3) in to position on the bracket (8).
(5) Connect the lower tube nut (6) of the lower hydraulic tube (7) to the union (5). Do not torque the tube nut (6) at this step.
(6) Install the two bolts (1) and two washers (2) that attach the manifold (3) to the support bracket (8).
(7) TORQUE the bolts (1) to between 70 and 63 lbf.in (0.79 and 0.71 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
(8) TORQUE the tube nut (6) to between 120 and 100 lbf.in (1.36 and 1.13 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
Subtask 78-36-49-870-050-A ** ON A/C NOT FOR ALL (1) Install the new AIPC 78-36-49-80-060 PACKING (4) (Ref. AMM TASK 70-23-13-911-010) on to the union (5).
(2) Install the union (5) with the packing (4) in to the opening on the actuator manifold (3).
(3) TORQUE the union (5) to between 135 and 125 lbf.in (1.53 and 1.41 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (4) Put the manifold (3) in to position on the bracket (8).
(5) Connect the lower tube nut (6) of the lower hydraulic tube (7) to the union (5). Do not torque the tube nut (6) at this step.
(6) Install the two bolts (1) and two washers (2) that attach the manifold (3) to the support bracket (8).
(7) TORQUE the bolts (1) to between 70 and 63 lbf.in (0.79 and 0.71 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (8) TORQUE the tube nut (6) to between 120 and 100 lbf.in (1.36 and 1.13 m.daN )
(Ref. AMM TASK 70-23-11-911-013). F. Bleed the opening actuator system
(2) Connect the IAE1N20009 PUMP HYDRAULIC UNIT-REVERSER C-DUCT to the manifold (3).
(3) Operate the IAE1N20009 PUMP HYDRAULIC UNIT-REVERSER C-DUCT until engine oil comes out of the end of the hose (31).
(4) Connect the hose nut (43) to the opening actuator (32).
(5) Before you torque the hose nut (43):
(a) Make sure that the elbow of hydraulic hose (31) is set at 119 +4 deg or -4 deg (119.0000 +4.0000 deg or -4.0000 deg) on the left half thrust reverser and 120 +5 deg or -5 deg (120.0000 +5.0000 deg or -5.0000 deg) on the right half thrust reverser. See detail K, sheet 5 of the figure
(6) TORQUE the hose nut (43) to between 120 and 100 lbf.in (1.36 and 1.13 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
(7) Remove the IAE1N20009 PUMP HYDRAULIC UNIT-REVERSER C-DUCT from the manifold (3).
Subtask 78-36-49-420-055-A ** ON A/C NOT FOR ALL CAUTION:
MAKE SURE THAT ALL TRAPPED AIR IS BLED FROM THE OPENING ACTUATOR SYSTEM. FAILURE TO DO SO COULD CAUSE THE THRUST REVERSER HALVES TO CLOSE TOO FAST AND CAUSE INJURY.
CAUTION:
USE ONLY ENGINE OIL TO FILL THE HAND PUMP AND OPENING ACTUATOR SYSTEM.
(1) Disconnect the hose nut (43) from the opening actuator (32). (2) Connect the IAE1N20009 PUMP HYDRAULIC UNIT-REVERSER C-DUCT to the manifold (3).
(3) Operate the IAE1N20009 PUMP HYDRAULIC UNIT-REVERSER C-DUCT until engine oil comes out of the end of the hose (31).
(4) Connect the hose nut (43) to the opening actuator (32).
(5) Before you torque the hose nut (43):
(a) Make sure that the elbow of hydraulic hose (31) is set at 119 +4 deg or -4 deg (119.0000 +4.0000 deg or -4.0000 deg) on the left half thrust reverser and 120 +5 deg or -5 deg (120.0000 +5.0000 deg or -5.0000 deg) on the right half thrust reverser. See detail K, sheet 5 of the figure
(6) TORQUE the hose nut (43) to between 120 and 100 lbf.in (1.36 and 1.13 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (7) Remove the IAE1N20009 PUMP HYDRAULIC UNIT-REVERSER C-DUCT from the manifold (3).
G. Attach the flexible hose upper end cover to the opening actuator
(1) Position the end covers (44) of the hose half-covers as close as possible to the actuator to ease installation of the hose covers. Ensure the half-covers have the same orientation as the hydraulic hose elbow (31). See detail J and K, sheet 5 of the figure
(2) Close the upper end cover (44) and install the clamp (47), screw (48), washer (46) and nut (45) that attach the upper end to the opening actuator (32) at Detail J.
(Ref. AMM TASK 70-23-11-911-013).
5. Close-up(1) Position the end covers (44) of the hose half-covers as close as possible to the actuator to ease installation of the hose covers. Ensure the half-covers have the same orientation as the hydraulic hose elbow (31). See detail J and K, sheet 5 of the figure
(2) Close the upper end cover (44) and install the clamp (47), screw (48), washer (46) and nut (45) that attach the upper end to the opening actuator (32) at Detail J.
NOTE: Pull hose close to C-Duct wall before tightening down clamps.
(3) TORQUE the nut (45) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN ) (Ref. AMM TASK 70-23-11-911-013). Subtask 78-36-49-410-050-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 thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
Subtask 78-36-49-440-050-A ** ON A/C NOT FOR ALL Subtask 78-36-49-410-051-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.