DOC AIRBUS | AMM A320FInstallation of the Vibration Harness [IAE]
TASK 77-32-43-400-010-A
Installation of the Vibration Harness
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 77-32-43-860-050-A ** ON A/C NOT FOR ALL
Subtask 77-32-43-420-050-A ** ON A/C NOT FOR ALL
Subtask 77-32-43-410-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 13:10:39 UTC
Installation of the Vibration Harness
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 2M (6 FT) |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V01-002) | cleaning fluid |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 70-23-11-911-013-A | General Torque Tightening Techniques |
| TASK 70-23-15-912-010-A | Connection of Electrical Connectors |
| 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 77-32-34-710-041-A | Operational Check of EVMU through CFDS |
| TASK 77-32-43-000-010-A | Removal of the Vibration Harness |
Vibration HarnessSubtask 77-32-43-860-050-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 2M (6 FT) is in position.
Subtask 77-32-43-010-051-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).
(3) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position.
B. Make sure that the fan cowls are open: (Ref. AMM TASK 71-13-00-010-010)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
Subtask 77-32-43-630-050-A ** ON A/C NOT FOR ALL (1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
C. Remove the covers/ caps/ plugs from the openings.
Subtask 77-32-43-110-050-A ** ON A/C NOT FOR ALL D. Clean the parts.
PRE SB 71-0271
(1) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with the cleaning fluid (Material No.V01-002) , to clean these parts:
(a) The nuts (8) and (12)
(b) The washers (13) and (14)
(c) The bolts (6) and (10)
(d) The clips (7), (9) and (11)
(e) The electrical receptacles.
END OF PRE SB 71-0271
POST SB 71-0271
(2) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with the cleaning fluid (Material No.V01-002) , to clean these parts:
(a) The nuts (8) and (12)
(b) The washers (13) and (14)
(c) The bolts (6), (10) and (18)
(d) The clips (7), (9), (11) and (19)
(e) The electrical receptacles.
END OF POST SB 71-0271
Subtask 77-32-43-210-050-A ** ON A/C NOT FOR ALL PRE SB 71-0271
(1) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with the cleaning fluid (Material No.V01-002) , to clean these parts:
(a) The nuts (8) and (12)
(b) The washers (13) and (14)
(c) The bolts (6) and (10)
(d) The clips (7), (9) and (11)
(e) The electrical receptacles.
END OF PRE SB 71-0271
POST SB 71-0271
(2) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with the cleaning fluid (Material No.V01-002) , to clean these parts:
(a) The nuts (8) and (12)
(b) The washers (13) and (14)
(c) The bolts (6), (10) and (18)
(d) The clips (7), (9), (11) and (19)
(e) The electrical receptacles.
END OF POST SB 71-0271
E. Examine the replacement parts and make sure that they have no damage.
4. ProcedureSubtask 77-32-43-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Vibration Harness
PRE SB 71-0177 and PRE SB 71-0271
(1) Put the clips (7), (9) and (11) on the vibration harness (3) in the correct position for the installation.
(2) Install the harness:
(a) Put the harness (3) on the engine.
(b) Connect the electrical connectors (4) and (5) to the vibration transducer connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(c) Connect the electrical connectors (1) and (2) to the pylon connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(d) Make sure that you do not twist the cables.
(e) Attach the clips (7), (9) and (11) to the support tubes on the engine with the bolts (6) and (10), washers (13) and (14) and nuts (8) and (12) at clipping positions B and C.
(f) TORQUE the nuts (8) and (12) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
END OF PRE SB 71-0177 and PRE SB 71-0271
POST SB 71-0177 and PRE SB 71-0271
(3) Put the clips (7), (9) and (11) on the vibration harness (3) and the clips (15) and (17) on the EEC and ignition supply harness (16) in the correct position for the installation.
(4) Install the harness:
(a) Put the harness (3) on the engine.
(b) Connect the electrical connectors (4) and (5) to the vibration transducer connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(c) Connect the electrical connectors (1) and (2) to the pylon connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(d) Make sure that you do not twist the cables.
(e) Attach the clips (7), (9), (11), (15) and (17) to the support tubes on the engine with the bolts (6) and (10), washers (13) and (14) and nuts (8) and (12) at clipping positions B, C, D and E.
(f) TORQUE the nuts (8) and (12) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
END OF POST SB 71-0177 and PRE SB 71-0271
POST SB 71-0177, POST SB 71-0271 and PRE SB 77-0014
(5) Put the clips (7), (9) and (11) on the vibration harness (3) and the clips (15), (17) and (19) on the EEC and ignition supply harness (16) in the correct position for the installation.
(6) Install the harness:
(a) Put the harness (3) on the engine.
(b) Connect the electrical connectors (4) and (5) to the vibration transducer connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(c) Connect the electrical connectors (1) and (2) to the pylon connections in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(d) Make sure that you do not twist the cables.
(e) Attach the clips (7), (9), (11), (15), (17) and (19) to the support tubes on the engine with the bolts (6), (10) and (18), washers (13) and (14) and nuts (8) and (12) at clipping positions C, D, E, F and G.
(f) TORQUE the nuts (8) and (12) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
END OF POST SB 71-0177, POST SB 71-0271 and PRE SB 77-0014
POST SB 71-0177, POST SB 71-0271 and POST SB 77-0014
(7) Put the clips (7), (9), (11) and (26) on the vibration harness (3) and the clips (15), (17) and (25) on the EEC and ignition supply harness (16) in the correct position for the installation.
(8) Install the harness:
(a) Put the harness (3) on the engine.
(b) Connect the electrical connectors (4) and (5) to the vibration transducer connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(c) Connect the electrical connectors (1) and (2) to the pylon connections in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(d) Make sure that you do not twist the cables.
(e) Attach the clips (7), (9), (11), (15), (17), (25) and (26) to the support tubes on the engine with the bolts (6), (10), (20), (22) and (24), spacers (21) and (23), washers (13) and (14) and nuts (8) and (12) at clipping positions C, D, E, F and G.
(f) TORQUE the nuts (8) and (12) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
END OF POST 71-0177, POST SB 71-0271 and POST SB 77- 0014
5. Close-upPRE SB 71-0177 and PRE SB 71-0271
(1) Put the clips (7), (9) and (11) on the vibration harness (3) in the correct position for the installation.
(2) Install the harness:
(a) Put the harness (3) on the engine.
(b) Connect the electrical connectors (4) and (5) to the vibration transducer connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(c) Connect the electrical connectors (1) and (2) to the pylon connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(d) Make sure that you do not twist the cables.
(e) Attach the clips (7), (9) and (11) to the support tubes on the engine with the bolts (6) and (10), washers (13) and (14) and nuts (8) and (12) at clipping positions B and C.
(f) TORQUE the nuts (8) and (12) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )
(Ref. AMM TASK 70-23-11-911-013). END OF PRE SB 71-0177 and PRE SB 71-0271
POST SB 71-0177 and PRE SB 71-0271
(3) Put the clips (7), (9) and (11) on the vibration harness (3) and the clips (15) and (17) on the EEC and ignition supply harness (16) in the correct position for the installation.
(4) Install the harness:
(a) Put the harness (3) on the engine.
(b) Connect the electrical connectors (4) and (5) to the vibration transducer connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(c) Connect the electrical connectors (1) and (2) to the pylon connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(d) Make sure that you do not twist the cables.
(e) Attach the clips (7), (9), (11), (15) and (17) to the support tubes on the engine with the bolts (6) and (10), washers (13) and (14) and nuts (8) and (12) at clipping positions B, C, D and E.
(f) TORQUE the nuts (8) and (12) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )
(Ref. AMM TASK 70-23-11-911-013). END OF POST SB 71-0177 and PRE SB 71-0271
POST SB 71-0177, POST SB 71-0271 and PRE SB 77-0014
(5) Put the clips (7), (9) and (11) on the vibration harness (3) and the clips (15), (17) and (19) on the EEC and ignition supply harness (16) in the correct position for the installation.
(6) Install the harness:
(a) Put the harness (3) on the engine.
(b) Connect the electrical connectors (4) and (5) to the vibration transducer connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(c) Connect the electrical connectors (1) and (2) to the pylon connections in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(d) Make sure that you do not twist the cables.
(e) Attach the clips (7), (9), (11), (15), (17) and (19) to the support tubes on the engine with the bolts (6), (10) and (18), washers (13) and (14) and nuts (8) and (12) at clipping positions C, D, E, F and G.
(f) TORQUE the nuts (8) and (12) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )
(Ref. AMM TASK 70-23-11-911-013). END OF POST SB 71-0177, POST SB 71-0271 and PRE SB 77-0014
POST SB 71-0177, POST SB 71-0271 and POST SB 77-0014
(7) Put the clips (7), (9), (11) and (26) on the vibration harness (3) and the clips (15), (17) and (25) on the EEC and ignition supply harness (16) in the correct position for the installation.
(8) Install the harness:
(a) Put the harness (3) on the engine.
(b) Connect the electrical connectors (4) and (5) to the vibration transducer connections, in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(c) Connect the electrical connectors (1) and (2) to the pylon connections in the positions written during the removal (Ref. AMM TASK 77-32-43-000-010) and (Ref. AMM TASK 70-23-15-912-010).
(d) Make sure that you do not twist the cables.
(e) Attach the clips (7), (9), (11), (15), (17), (25) and (26) to the support tubes on the engine with the bolts (6), (10), (20), (22) and (24), spacers (21) and (23), washers (13) and (14) and nuts (8) and (12) at clipping positions C, D, E, F and G.
(f) TORQUE the nuts (8) and (12) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )
(Ref. AMM TASK 70-23-11-911-013). END OF POST 71-0177, POST SB 71-0271 and POST SB 77- 0014
Subtask 77-32-43-410-050-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 cowls (Ref. AMM TASK 71-13-00-410-010).
(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).
Subtask 77-32-43-710-050-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 fan cowls (Ref. AMM TASK 71-13-00-410-010).
(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).
B. Do an operational test of the EVMU (Ref. AMM TASK 77-32-34-710-041) and make sure that there are no faults related to the vibration harness on the CFDS.