W DOC AIRBUS | AMM A320F

Installation of the Nose Landing Gear (NLG) Actuating-Cylinder Upper-Link

TASK 32-31-22-400-802-A
Installation of the Nose Landing Gear (NLG) Actuating-Cylinder Upper-Link

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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 THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING: MAKE SURE THAT THE CONTROLS AGREE WITH THE POSITION OF THE ITEMS THEY OPERATE BEFORE YOU PRESSURIZE A HYDRAULIC SYSTEM. UNWANTED MOVEMENT OF HYDRAULICALLY OPERATED ITEMS CAN CAUSE SERIOUS INJURY AND/OR DAMAGE.
WARNING: PRESSURIZE ONLY THE HYDRAULIC SYSTEM(S) THAT IS (ARE) NECESSARY FOR THE TASK. ISOLATE THE OTHER HYDRAULIC SYSTEM(S) BEFORE YOU SUPPLY HYDRAULIC POWER TO THE AIRCRAFT.
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.
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific
AR
AIR SOURCE FILTERED, DRY
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 0.55 and 0.45 m.daN (48.67 and 39.82 lbf.in ) T
No specific
Torque wrench: range to between 5.25 and 4.75 m.daN (38.72 and 35.03 lbf.ft ) T
98AMS172321002
1
ADAPTER-WRENCH
98AMS172321003
1
ADAPTER-WRENCH
98D32203501000
1
GUIDE CONE - NLG
98D32303000000
1
ADAPTER-WRENCH KIT
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.02ABA1)
Phosphate Ester Hydraulic Fluid-General Power - -
(Material No.03GBB1)
Synthetic Oil base Grease-General Purpose Clay Thickened -
(Material No.03HBD9)
Synthetic Ester base Grease-General Purpose Low Temp -
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.12ACB1)
Corrosion Preventive Compound-Heavy Duty Hard Film -
 C. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
2
LOCKWASHER
AIPC 32-31-01-06-020
5
LOCKWASHER
AIPC 32-31-01-06-050
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 12-22-32-640-002-A
Lubrication of Nose Landing Gear and Doors
TASK 24-42-00-861-001-A
Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A
De-energize the Ground Service Network Supplied from the External Power
TASK 29-00-00-864-001-A
Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 29-14-00-614-001-A
Depressurization of the Hydraulic Reservoirs
TASK 32-22-00-010-001-A
Nose Gear Doors - Ground Doors Opening
TASK 32-22-00-410-001-A
Nose Gear Doors - Ground Doors Closing
TASK 12-22-00-00
LUBRICATION - DESCRIPTION AND OPERATION
F Actuating-Cylinder Upper-Link
3. Job Set-up
Subtask 32-31-22-860-053-A
A. Aircraft Maintenance Configuration
   (1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
   (2) Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
   (3) Make sure that the reservoir of the Green hydraulic system is depressurized
(Ref. AMM TASK 29-14-00-614-001).
   (4) Make sure that the NLG doors are open (Ref. AMM TASK 32-22-00-010-001).
   (5) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position below zone 123.
   (6) On right center instrument panel 400VU:
  • Make sure that the landing-gear control lever is in the DOWN position.
  • Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to operate this lever.
   (7) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Green hydraulic system:
  • On HYD panel 40VU in the cockpit
  • On the ground service panel of the Green hydraulic system, access door 197CB.
4. Procedure
Subtask 32-31-22-640-053-A
A. Prepare for the Installation
   (1) Clean the actuating cylinder (8) with Non Aqueous Cleaner-General - - (Material No.08BAA9) and dry it with AIR SOURCE FILTERED, DRY.
NOTE: In the steps that follows, for lubricant grease specification and lubrication requirements, refer to (Ref. AMM D/O 12-22-00-00).
   (2) Apply a light layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) on the spherical end.
   (3) Apply a light layer of Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) on the rod of the actuating cylinder (8).
   (4) Apply a light layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) on the pin (10) end and on the sleeve (9).
   (5) Clean the attachment hardware with Non Aqueous Cleaner-General - - (Material No.08BAA9) and dry them with AIR SOURCE FILTERED, DRY.
Subtask 32-31-22-420-053-A
B. Installation of the NLG Actuating-Cylinder Upper-Link
   (1) Set the actuating cylinder (8) on its upper link (7) with the 98D32203501000 GUIDE CONE - NLG.
   (2) Install the sleeve (9), the washers (6), the new AIPC 32-31-01-06-050 LOCKWASHER (5) and the nut (4).
   (3) TORQUE the nut (4) to between 5.25 and 4.75 m.daN (38.72 and 35.03 lbf.ft ) T with the 98D32303000000 ADAPTER-WRENCH KIT and safety it with the lockwasher (5).
   (4) Install the airframe attachment pin (10) and set the grease nipple up.
   (5) Install the washer (3), the new AIPC 32-31-01-06-020 LOCKWASHER (2) and the nut (1).
   (6) TORQUE the nut (1) to between 0.55 and 0.45 m.daN (48.67 and 39.82 lbf.in ) T with 98AMS172321003 ADAPTER-WRENCH or 98AMS172321002 ADAPTER-WRENCH and safety it with the lockwasher (2).
   (7) Lubricate the spherical end of the actuating cylinder (8) (Ref. AMM TASK 12-22-32-640-002).
   (8) Apply a thin layer of Corrosion Preventive Compound-Heavy Duty Hard Film - (Material No.12ACB1) to the items that follow:
  • Nuts (1) and (4)
  • Sleeve (9)
  • Airframe attachment pin (10).
5. Close-up
Subtask 32-31-22-862-051-A
A. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001)
Subtask 32-31-22-410-051-A
B. Close Access
   (1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
   (2) Remove the access platform(s).
   (3) Close the NLG doors (Ref. AMM TASK 32-22-00-410-001).
   (4) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 00:44:53 UTC
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