W DOC AIRBUS | AMM A320F

Check of the NLG Shock Absorber Bottoming


TASK 12-14-32-200-002-A
Check of the NLG Shock Absorber Bottoming


WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
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.
ZONE: 711
1. Reason for the Job
NOTE: If you find a deflated NLG shock absorber after the aircraft landing, there can be structural or landing-gear component damage. You must contact AIRBUS for instructions with the results of AMM TASK 32-21-00-200-002-A.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
SAFETY BARRIER(S)
No specific
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
711
NOSE GEAR
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 12-12-32-610-001-A
Check NLG Shock Absorber Fluid Level and Charge Pressure ("Two-Point Check" - Aircraft on Jacks to start)
TASK 12-12-32-610-001-A-01
Check NLG Shock Absorber Fluid Level and Charge Pressure ("Two-Point Check" - Aircraft on Ground to start)
TASK 12-12-32-611-001-A
NLG Shock Absorber Oil Replenishment and Nitrogen Filling (Aircraft on Wheels)
TASK 12-12-32-611-005-A
NLG Shock Absorber Oil Replenishment and Nitrogen Filling (Aircraft on Jacks)
TASK 32-00-00-481-001-A
Installation of the Safety Devices on the Landing Gears
F NLG Shock Absorber - Dimension H ** ON A/C NOT FOR ALL
F NLG Shock Absorber - Dimension H ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 12-14-32-941-070-A
A. Safety Precautions
   (1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
   (2) Make sure that the ground safety locks are installed on the landing gear (Ref. AMM TASK 32-00-00-481-001).
   (3) On panel 400VU:
  • make sure that the landing-gear control-lever is in the DOWN position
  • put a WARNING NOTICE(S) in position to tell persons not to operate the landing-gear.
   (4) Make sure that the wheel chocks are in position at the MLG wheels. Do not put a chock at the nose wheels.
4. Procedure
Subtask 12-14-32-220-063-A
A. Dimension Check of the NLG Shock Absorber
F NLG Shock Absorber - Dimension H ** ON A/C NOT FOR ALL
F NLG Shock Absorber - Dimension H ** ON A/C NOT FOR ALL
   (1) Measure the dimension H of the NLG shock absorber:
NOTE: The dimension H must be measured between the bottom surface of the sliding-tube lower bearing and the top surface of the torque-link attachment lug.
     (a) If the dimension H is as follows, do step (2):
  • The dimension H is less than 26 mm (1.0236 in.), when the ambient temperature is less than 0 deg.C (32.00 deg.F).
  • The dimension H is less than 48 mm (1.8898 in.), when the ambient temperature is between 0 deg.C (32.00 deg.F) and 30 deg.C (86.00 deg.F).
  • The dimension H is less than 72 mm (2.8346 in.), when the ambient temperature is more than 30 deg.C (86.00 deg.F).
     (b) If the dimension H is more than the specified limits, do the close-up procedure in Para. 5.A.
   (2) Do one of the two steps that follow:
     (a) Do a check of the NLG shock-absorber fluid level and charge pressure (Ref. AMM TASK 12-12-32-610-001).
     (b) Do the NLG shock-absorber oil replenishment and nitrogen filling (Ref. AMM TASK 12-12-32-611-001) or (Ref. AMM TASK 12-12-32-611-005).
5. Close-up
Subtask 12-14-32-942-064-A
A. Removal of Equipment
   (1) Remove the WARNING NOTICE(S).
   (2) Remove the SAFETY BARRIER(S).
   (3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 04:25:13 UTC