W DOC AIRBUS | AMM A320F

Removal of the Nose-Wheel Steering Feedback Sensor-Box P/N E21336000 (Adjustment with CFDS)

TASK 32-51-19-000-002-A
Removal of the Nose-Wheel Steering Feedback Sensor-Box P/N E21336000 (Adjustment with CFDS)

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.
CAUTION: IF THE SENSOR BOX HAS P/N E21336000, NEVER REMOVE THE SENSOR FROM THE GEARBOX. THE SENSOR AND THE GEARBOX ARE AN ASSEMBLY THAT YOU MUST NOT DISASSEMBLE ON THE AIRCRAFT. IF YOU REMOVE THE SENSOR FROM THE GEARBOX:
  • YOU WILL CAUSE DAMAGE TO THE SENSOR BOX
  • THE ADJUSTMENT OF THE SENSOR BOX WILL NO LONGER BE CORRECT.
ZONE: 711
FIN: 3GC
FIN: 4GC
1. Reason for the Job
Do this procedure only when it is necessary to replace one of the two nose wheel steering feedback sensor-boxes:
  • when you are away from your main base and
  • when no jacking equipment is available.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
CAP - BLANKING
No specific
AR
SAFETY BARRIER(S)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
711
NOSE GEAR
 C. Referenced Information
REFERENCE
DESIGNATION
F Sensor Box P/N E21336000
3. Job Set-up
Subtask 32-51-19-941-055-B ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) In the cockpit, on the panel 400VU, put WARNING NOTICE(S) in position to tell persons not to operate the landing-gear control lever.
   (2) On the CAPT and F/O nose-wheel steering handwheels and on the brake pedals, put WARNING NOTICE(S) in position to tell persons not to operate them.
   (3) Put SAFETY BARRIER(S) in position.
   (4) Put WARNING NOTICE(S) not to pressurize the Green hydraulic system:
  • in the cockpit
  • on the HYD section of the panel 40VU.
Subtask 32-51-19-941-055-C ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) In the cockpit, on the panel 400VU, put WARNING NOTICE(S) in position to tell persons not to operate the landing-gear control lever.
   (2) On the CAPT and F/O nose-wheel steering handwheels and on the brake pedals, put WARNING NOTICE(S) in position to tell persons not to operate them.
   (3) Put SAFETY BARRIER(S) in position.
   (4) Put WARNING NOTICE(S) not to pressurize the Yellow hydraulic system:
  • in the cockpit
  • on the HYD section of the panel 40VU.
Subtask 32-51-19-865-063-A
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
121VUHYDRAULIC/BRAKING AND STEERING/SYS2/SPLY4GGM36
121VUHYDRAULIC/BRAKING AND STEERING/SYS2/CTL3GGM35
121VUHYDRAULIC/BRAKING AND STEERING/SYS1/CTL1GGM34
121VUHYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY2GGM33
4. Procedure
Subtask 32-51-19-020-055-A
A. Removal of the Sensor Box
   (1) Disconnect the electrical connector (8) from the sensor box (7).
   (2) Put CAP - BLANKING on the disconnected electrical connectors.
   (3) Remove the screws (1), the washers (2), the bushes (3) and the springs (4).
   (4) Carefully remove the sensor box (7) with the spacers (5) from the nose landing gear.
[Rev.10 from 2021] 2026.04.01 00:51:22 UTC
"Aviabrain" 2025