DOC AIRBUS | AMM A320FInstallation of the Check Valve
TASK 29-13-48-400-001-A
Installation of the Check Valve
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 29-13-48-941-058-A
Subtask 29-13-48-864-054-A
[Rev.10 from 2021]
2026.04.01 00:22:00 UTC
Installation of the Check Valve
WARNING:
MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.
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:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:
- DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
- DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
- MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
FIN: 3170GM
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 3M (10 FT) |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | 1 | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.02ABA1) | Phosphate Ester Hydraulic Fluid-General Power - - |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 575DB |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-50-00-866-008-A | Extension of the Flaps on the Ground |
| TASK 27-50-00-866-008-A-01 | Extension of the Flaps/Slats on the Ground |
| TASK 27-50-00-866-009-A | Retraction of the Flaps on the Ground |
| TASK 27-50-00-866-009-A-01 | Retraction of the Flaps/Slats on the Ground |
| TASK 27-51-00-710-001-A | Operational Test of the Wing Tip Brake and the Pressure Off Brake |
| TASK 27-60-00-866-002-A | Extension-Retraction of the Spoilers for Maintenance |
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| TASK 29-00-00-910-002-A | Safety Procedures of the Hydraulic System |
| TASK 29-10-00-863-002-A | Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart |
| TASK 29-10-00-864-002-A | Depressurize the Yellow Hydraulic System |
| TASK 29-23-00-860-001-A | Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU) |
| TASK 29-23-00-860-002-A | Connection of the Isolation Coupling of the Power Transfer Unit (PTU) |
| TASK 57-51-37-000-004-A | Removal of the Access Panels 575AB(675AB), 575BB(675BB), 575CB(675CB), 575DB(675DB), 575EB(675EB), 575FB(675FB), 575GB(675GB), 575HB(675HB) |
| TASK 57-51-37-400-004-A | Installation of the Access Panels 575AB(675AB), 575BB(675BB), 575CB(675CB), 575DB(675DB), 575EB(675EB), 575FB(675FB), 575GB(675GB), 575HB(675HB) |
Flap WTB Check Valve 3170GMSubtask 29-13-48-941-058-A
A. Safety Precautions
(2) Make sure that the SAFETY BARRIER(S)S are in position.
(3) Put a WARNING NOTICE(S) in position to tell persons not to pressurize the Yellow hydraulic system.
Subtask 29-13-48-860-051-A WARNING:
OBEY THE HYDRAULIC SAFETY PROCEDURES.
(1) Obey the hydraulic safety precautions (Ref. AMM TASK 29-00-00-910-002). (2) Make sure that the SAFETY BARRIER(S)S are in position.
(3) Put a WARNING NOTICE(S) in position to tell persons not to pressurize the Yellow hydraulic system.
B. Aircraft Maintenance Configuration
(1) Make sure that the isolation coupling of the PTU is disconnected (Ref. AMM TASK 29-23-00-860-001).
(2) Make sure that the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-00-00-864-001).
(3) Make sure that the flaps are fully extended (Ref. AMM TASK 27-50-00-866-008).
(4) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is on the flap/slat control lever on panel 114VU.
(5) Make sure that the ACCESS PLATFORM 3M (10 FT) is in position.
(6) Make sure that the access panel 575DB is removed (Ref. AMM TASK 57-51-37-000-004).
Subtask 29-13-48-865-051-A (1) Make sure that the isolation coupling of the PTU is disconnected (Ref. AMM TASK 29-23-00-860-001).
(2) Make sure that the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-00-00-864-001).
(3) Make sure that the flaps are fully extended (Ref. AMM TASK 27-50-00-866-008).
(4) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is on the flap/slat control lever on panel 114VU.
(5) Make sure that the ACCESS PLATFORM 3M (10 FT) is in position.
(6) Make sure that the access panel 575DB is removed (Ref. AMM TASK 57-51-37-000-004).
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B08 |
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B07 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B03 |
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B02 |
| ** ON A/C ALL | |||
| 105VU | FLT CTL/SEC1/STBY SPLY | 22CE | B01 |
| 121VU | FLIGHT CONTROLS/WTB/FLP/SYS2 | 12CV | P20 |
| 121VU | HYDRAULIC/Y HYD/PUMP ENG2/MONG | 3700GD | Q37 |
| 121VU | HYDRAULIC/Y HYD/PUMP ENG2/CTL | 3701GD | Q36 |
| 121VU | FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 | 8CV | Q21 |
| 121VU | FLIGHT CONTROLS/SEC3/SPLY | 21CE3 | Q19 |
| 121VU | FLIGHT CONTROLS/SEC2/SPLY | 21CE2 | Q18 |
| 122VU | FLIGHT CONTROLS/WTB/FLP/SYS1 | 10CV | S07 |
CAUTION:
BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:
Subtask 29-13-48-420-051-A - DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
- DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
- MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
A. Preparation for Installation
(2) Clean the component interfaces and the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Do an inspection of the component interfaces and the adjacent area.
Subtask 29-13-48-420-050-A WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Remove the blanking caps from the line ends. (2) Clean the component interfaces and the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Do an inspection of the component interfaces and the adjacent area.
B. Installation of the Check Valve
(2) Attach the check valve (2) to the coupling nut (1).
(3) Install the pipe (4) and attach it with the coupling nuts (3) and (5).
Subtask 29-13-48-865-052-A WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the threads of the check valve (2) and the coupling nuts (1), (3) and (5). (2) Attach the check valve (2) to the coupling nut (1).
(3) Install the pipe (4) and attach it with the coupling nuts (3) and (5).
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 29-13-48-860-052-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B08 |
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B07 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B03 |
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B02 |
| ** ON A/C ALL | |||
| 105VU | FLT CTL/SEC1/STBY SPLY | 22CE | B01 |
| 121VU | FLIGHT CONTROLS/WTB/FLP/SYS2 | 12CV | P20 |
| 121VU | HYDRAULIC/Y HYD/PUMP ENG2/MONG | 3700GD | Q37 |
| 121VU | HYDRAULIC/Y HYD/PUMP ENG2/CTL | 3701GD | Q36 |
| 121VU | FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 | 8CV | Q21 |
| 121VU | FLIGHT CONTROLS/SEC3/SPLY | 21CE3 | Q19 |
| 121VU | FLIGHT CONTROLS/SEC2/SPLY | 21CE2 | Q18 |
| 122VU | FLIGHT CONTROLS/WTB/FLP/SYS1 | 10CV | S07 |
D. Aircraft Configuration
(1) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap/slat control lever on panel 114VU.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Install the safety collar on the circuit breakers 10CV and 12CV.
(4) Connect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-002).
(5) Pressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-863-002).
Subtask 29-13-48-710-050-A (1) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap/slat control lever on panel 114VU.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Install the safety collar on the circuit breakers 10CV and 12CV.
(4) Connect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-002).
(5) Pressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-863-002).
E. Test
(1) Do an operational test of the flap WTB (Ref. AMM TASK 27-51-00-710-001).
(2) Make sure that the hydraulic connections of the check valve do not leak.
5. Close-up(1) Do an operational test of the flap WTB (Ref. AMM TASK 27-51-00-710-001).
(2) Make sure that the hydraulic connections of the check valve do not leak.
Subtask 29-13-48-864-054-A
A. Depressurize the Hydraulic System
(1) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002).
Subtask 29-13-48-865-053-A (1) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002).
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 29-13-48-410-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B07 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B02 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 | 8CV | Q21 |
C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the access panel 575DB (Ref. AMM TASK 57-51-37-400-004).
Subtask 29-13-48-865-054-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the access panel 575DB (Ref. AMM TASK 57-51-37-400-004).
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 29-13-48-866-051-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B07 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B02 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 | 8CV | Q21 |
E. Aircraft Configuration
(2) Retract the flaps fully (Ref. AMM TASK 27-50-00-866-009).
Subtask 29-13-48-942-050-A 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.
(1) Retract the spoiler 3 (Ref. AMM TASK 27-60-00-866-002). (2) Retract the flaps fully (Ref. AMM TASK 27-50-00-866-009).
F. Removal of Equipment
(1) Remove the SAFETY BARRIER(S)S.
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Remove the SAFETY BARRIER(S)S.
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.