DOC AIRBUS | AMM A320FPut the Safety Valve back to the Usual Position after Operation
TASK 32-51-21-600-801-A
Put the Safety Valve back to the Usual Position after Operation
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 32-51-21-941-050-A ** ON A/C NOT FOR ALL
Subtask 32-51-21-680-050-A ** ON A/C NOT FOR ALL
Subtask 32-51-21-942-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 00:51:29 UTC
Put the Safety Valve back to the Usual Position after Operation
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.
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.
WARNING:
OBEY THE HYDRAULIC SAFETY PROCEDURES.
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 | 1 | ACCESS PLATFORM 1M(3 FT) |
| No specific | 1 | CONTAINER 1 L (1/4 USGAL) |
| No specific | 1 | HOSE - BLEED |
| No specific | 1 | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.02ABA1) | Phosphate Ester Hydraulic Fluid-General Power - - |
| (Material No.14QFB1) | Wire-Locking Dia: 0.8 mm CRES Nickel Alloy - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 744 | MAIN DOOR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 29-10-00-864-002-A | Depressurize the Yellow Hydraulic System |
| TASK 32-12-00-010-001-A | Open the Main Gear Doors for Access |
| TASK 32-12-00-410-001-A | Close the Main Gear Doors after Access |
| TASK 32-31-00-710-002-A | Operational Test of the Landing Gear Doors (With False Targets) |
| TASK 32-31-00-710-002-A-01 | Operational Test of the Landing Gear Doors (Without False Targets) |
| TASK 32-51-00-720-004-A | Functional Test of the Nose Wheel Steering with the Pedals |
Safety Valve - NLG Door Closing/Opening - Location and DetailSubtask 32-51-21-941-050-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Put the WARNING NOTICE(S) in position to tell persons not to:
(3) Put the ACCESS PLATFORM 1M(3 FT) in position at zone 744.
Subtask 32-51-21-860-053-A ** ON A/C NOT FOR ALL (1) Put the WARNING NOTICE(S) in position to tell persons not to:
- Pressurize the Yellow hydraulic system
- Operate the landing gear.
(3) Put the ACCESS PLATFORM 1M(3 FT) in position at zone 744.
B. Aircraft Maintenance Configuration
(1) Make sure that the Yellow hydraulic system is depressurized.
(Ref. AMM TASK 29-10-00-864-002).
4. Procedure(1) Make sure that the Yellow hydraulic system is depressurized.
(Ref. AMM TASK 29-10-00-864-002).
Subtask 32-51-21-680-050-A ** ON A/C NOT FOR ALL
A. Put the Safety Valve back to the Usual Position after Operation
(2) Remove the blanking plug (1) from the bleed screw (2) of the safety valve (3).
(3) Remove and discard the lockwire from the bleed screw (2).
(4) Connect one end of the HOSE - BLEED to the bleed screw (2). Put the other end in a CONTAINER 1 L (1/4 USGAL) that contains the Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(5) Slowly open the bleed screw (2) to release the hydraulic fluid.
(6) When the fluid flow stops, close the bleed screw (2).
(7) Disconnect the bleed pipe and remove all the hydraulic fluid from the bleed screw (2) with the lint-free cloth.
(8) Safety the bleed screw (2) with the14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(9) Install the blanking plug (1).
Subtask 32-51-21-710-051-A ** ON A/C NOT FOR ALL WARNING:
USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
(1) Put a clean Textile-Lint free Cotton - (Material No.14SBA1) below the safety valve (3). (2) Remove the blanking plug (1) from the bleed screw (2) of the safety valve (3).
(3) Remove and discard the lockwire from the bleed screw (2).
(4) Connect one end of the HOSE - BLEED to the bleed screw (2). Put the other end in a CONTAINER 1 L (1/4 USGAL) that contains the Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(5) Slowly open the bleed screw (2) to release the hydraulic fluid.
(6) When the fluid flow stops, close the bleed screw (2).
(7) Disconnect the bleed pipe and remove all the hydraulic fluid from the bleed screw (2) with the lint-free cloth.
(8) Safety the bleed screw (2) with the
(9) Install the blanking plug (1).
B. Test
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Do the operational test of the landing gear doors (Ref. AMM TASK 32-31-00-710-002).
(3) Do the functional test of the nose wheel steering (Ref. AMM TASK 32-51-00-720-004).
(4) Make sure that there is no hydraulic fluid leakage from the safety valve(s). Leaks are not permitted.
5. Close-up(1) Make sure that the work area is clean and clear of tools and other items.
(2) Do the operational test of the landing gear doors (Ref. AMM TASK 32-31-00-710-002).
(3) Do the functional test of the nose wheel steering (Ref. AMM TASK 32-51-00-720-004).
(4) Make sure that there is no hydraulic fluid leakage from the safety valve(s). Leaks are not permitted.
Subtask 32-51-21-942-050-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Remove the access platform(s).
(2) Close the right MLG door (Ref. AMM TASK 32-12-00-410-001).
(3) Remove the WARNING NOTICE(S).
(1) Remove the access platform(s).
(2) Close the right MLG door (Ref. AMM TASK 32-12-00-410-001).
(3) Remove the WARNING NOTICE(S).