W DOC AIRBUS | AMM A320F

Installation of the Aft Vibration Sensor N1 [PW11]

TASK 77-32-22-400-801-A
Installation of the Aft Vibration Sensor N1

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION: MAKE SURE THAT THE AFT VIBRATION SENSOR CABLE DOES NOT TOUCH SHARP-EDGE SURFACES, FUEL LINES, OIL LINES, HIGH PRESSURE PNEUMATIC DUCTS, PNEUMATIC SENSOR LINES, OR FABRIC BELLOWS. MAKE SURE THAT THE AFT VIBRATION SENSOR CABLE DOES NOT HAVE ANY KINKS. IF YOU DO NOT FOLLOW THIS INSTRUCTION YOU COULD DAMAGE THE AFT VIBRATION SENSOR CABLE.
ZONE: 400
FIN: 4067KS ** ON A/C NOT FOR ALL
1. Reason for the Job
Use this procedure to install the aft vibration sensor.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
PLIERS - JAWED, SOFT
No specific
Torque wrench: range to between 44 and 38 lbf.in (0.50 and 0.43 m.daN ) T
No specific
Torque wrench: range to between 145 and 125 lbf.in (1.64 and 1.41 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.P03-001)
lubricant, aircraft turbine engine
(Material No.P06-054)
Antigalling Compound
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR, 462AR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 71-00-00-860-832-A
Procedure to Prevent Engine Motoring and to Stop the Electrical Supply to the EEC
TASK 71-13-00-010-802-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A
Closing of the Fan Cowl Doors
TASK 73-21-00-710-807-A
Test No.6 - EEC Operation Test (Idle Test)
TASK 73-25-34-400-802-A
Installation of the Engine Interface Unit (EIU)
TASK 78-30-00-040-805-A
Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-805-A
Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-36-00-010-802-A
Opening of the Thrust Reverser Cowl-Doors
TASK 78-36-00-410-802-A
Closing of the Thrust Reverser Cowl-Doors
F Aft Vibration Sensor
3. Job Set-up
Subtask 77-32-22-941-051-A ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) Make sure that you did the procedure to prevent engine motoring and to stop the electrical supply to the Electronic Engine Control (EEC)
(Ref. AMM TASK 71-00-00-860-832)
Subtask 77-32-22-865-051-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: 4020KM1 (POWER PLANTDEMOUNTABLE, ENG 1)
121VUPHMU/ENG195KS1P44
FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENG 2)
121VUPHMU/ENG295KS2P45
Subtask 77-32-22-010-052-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR
Subtask 77-32-22-040-051-A ** ON A/C NOT FOR ALL
D. Deactivation of the Thrust Reverser for Maintenance
WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
   (1) Make sure that you did the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805).
Subtask 77-32-22-010-053-A ** ON A/C NOT FOR ALL
E. Get Access
   (1) Make sure that the right thrust-reverser cowl-doors are open (Ref. AMM TASK 78-36-00-010-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
462AR
4. Procedure
CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 77-32-22-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Aft Vibration Sensor N1
   (1) Removal of the protection covers
CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.
     (a) Make sure that you remove all the necessary COVER - PROTECTION to prevent damage to the engine.
   (2) Install the aft vibration sensor N1 (2) to the engine as follows:
F Aft Vibration Sensor ** ON A/C NOT FOR ALL
     (a) Apply Antigalling Compound (Material No.P06-054) to the threads of the two bolts (1). See the sheet 2 of the figure.
NOTE: For new or refurbished bolts or nuts with baked on lubricant, do not do the wet application.
     (b) Install the sensor (2) to the flange H bracket with the two bolts (1) fingertight.
     (c) Install the sensor (2) cables sleeves on the seven spring clips. See the sheets 3, 4 and 5 of the figure.
     (d) Apply P03-001lubricant, aircraft turbine engine (synthetic base) on the threads of the two nuts (13).
     (e) Install the sensor (2) to the flange P bracket and flange P with the two bolts (12) and nuts (13). See the sheet 5 of the figure.
     (f) TORQUE the nuts (13) to between 145 and 125 lbf.in (1.64 and 1.41 m.daN ) T.
     (g) TORQUE the bolts (1) to between 44 and 38 lbf.in (0.50 and 0.43 m.daN ) T.
   (3) Connect the wiring harness (WC03) connector (P51) to the sensor (2) receptacle (J51). See the sheet 2 of the figure.
     (a) Examine, align and engage the connector.
     (b) Push lightly inward on the connector while you tighten the coupling ring.
     (c) Use the PLIERS - JAWED, SOFT and tighten the connector against the receptacle.
     (d) Make sure that you can feel the ratchet feature.
     (e) While you tighten, push the connector from side to side.
     (f) Tighten the connector until the PLIERS - JAWED, SOFT slip on the connector ring.
   (4) Examine the assembly for unwanted objects, damage and correct assembly.
5. Close-up
Subtask 77-32-22-860-050-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the right thrust-reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
462AR
Subtask 77-32-22-865-052-A ** ON A/C NOT FOR ALL
B. Close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENG 1)
121VUPHMU/ENG195KS1P44
FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENG 2)
121VUPHMU/ENG295KS2P45
Subtask 77-32-22-440-050-A ** ON A/C NOT FOR ALL
C. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 77-32-22-410-050-A ** ON A/C NOT FOR ALL
D. Close Access
   (1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
   (2) Remove the WARNING NOTICE(S).
   (3) Make sure that all the circuit breakers shown in the paragraph Procedure of the engine interface unit installation are closed. If they are not, close them in the recommended sequence
(Ref. AMM TASK 73-25-34-400-802)
Subtask 77-32-22-720-050-A ** ON A/C NOT FOR ALL
E. Tests
   (1) Do the test N°6 - EEC - Idle test (Ref. AMM TASK 73-21-00-710-807).
[Rev.10 from 2021] 2026.04.01 03:19:07 UTC
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