Airbus a320 Brake Accu Pnc

Customer : AEE Manual : AMM Type : TF-N Selected applicability : ALL Rev. Date : Aug 01, 2015 32-44-11 - ACCUMULATOR - BRAKE YELLOW PRESSURE

** ON A/C ALL

32-44-11 - ACCUMULATOR - BRAKE YELLOW PRESSURE 32-44-11 PB 401 CONF 00 - ACCUMULATOR - BRAKE YELLOW PRESSURE - REMOVAL/INSTALLATION TASK 32-44-11-000-001-A Removal of the Accumulator WARNING:

MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.

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:

OBEY THE HYDRAULIC SAFETY PROCEDURES.

FIN : 2582GM 1.

Reason for the Job Self explanatory

2

Job Set-up Information A.

Fixtures, Tools, Test and Support Equipment REFERENCE No specific No specific No specific No specific No specific

B.

QTY 1 1 AR AR AR

DESIGNATION ACCESS PLATFORM 2M (6 FT) CONTAINER 5 L (1.32 USGAL) PLUG - BLANKING SAFETY CLIP - CIRCUIT BREAKER WARNING NOTICE(S)

Referenced Information REFERENCE (Ref. 29-00-00-910-002-A). (Ref. 29-10-00-864-002-A). (Ref. 29-14-00-614-001-A). (Ref. 29-23-00-860-001-A). (Ref. 32-12-00-010-001-A).

DESIGNATION Safety Procedures of the Hydraulic System Depressurize the Yellow Hydraulic System Depressurization of the Hydraulic Reservoirs Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU) Open the Main Gear Doors for Access

Print Date: October 30, 2015 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.

Page 1 of 19


REFERENCE (Ref. 32-44-11-200-001-A).

DESIGNATION Functional Check of Parking/Emergency Brake Accumulator by Reading the Charge Pressure on the Accumulator Gauge

Accumulator 2582GM SHEET 1 FR47

Z744

A A B

1 2582GM

12

11

B

3

2

13

10

4 6

5

7 8 9

7

N_MM_324411_4_AAM0_01_00

Figure 32-44-11-991-00100-A / SHEET 1/1 - Accumulator 2582GM ** ON A/C ALL Print Date: October 30, 2015 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.

Page 2 of 19


3.

Job Set-up

** ON A/C 108-200, 251-300 Subtask 32-44-11-860-050-A A.

Aircraft Maintenance Configuration (1) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002) . (2) Push the pressure release button on the pressure relief valve 3067GM to depressurize the alternate brake system. (3) Make sure that the pressure on the gauge 2585GM decreases to the fill pressure of the accumulator 2582GM (Ref. AMM TASK 32-44-11-200-001) .

** ON A/C 001-018, 025-025, 027-028, 053-104, 201-250, 301-500, 513-700 Subtask 32-44-11-860-050-B A.

Aircraft Maintenance Configuration (1) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002) . (2) Set the Anti-skid and Nose Wheel switch to OFF. (3) Push the pressure release button on the pressure relief valve 3067GM to depressurize the alternate brake system. (4) Make sure that the pressure on the gauge 2585GM decreases to the fill pressure of the accumulator 2582GM (Ref. AMM TASK 32-44-11-200-001) .

** ON A/C ALL Subtask 32-44-11-010-050-A B.

Get Access (1) Open the right MLG door (Ref. AMM TASK 32-12-00-010-001) .

Subtask 32-44-11-869-050-A C.

Disconnection of the PTU Isolation Coupling (1) Depressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-001) . (2) Disconnect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-001) . (3) Put the ACCESS PLATFORM 2M (6 FT) in position. (4) Put the CONTAINER 5 L (1.32 USGAL) below the accumulator 2582GM to collect the hydraulic fluid leakage.

Subtask 32-44-11-865-052-A D.

Open, safety and tag this(these) circuit breaker(s): PANEL

DESIGNATION

FIN

LOCATION

** ON A/C 001-018, 025-025, 027-028, 053-104, 201-250, 301-500, 513-700 49VU ABCU &/Y BRK/PRESS IND 61GG C10 ** ON A/C 108-200, 251-300 49VU L/G/Y BRK/PRESS/IND

61GG

C10

** ON A/C ALL


Page 3 of 19


PANEL 121VU 121VU 121VU 121VU 121VU 121VU 121VU 121VU 121VU 123VU 123VU

DESIGNATION FIN HYDRAULIC/BRAKING AND STEER4GG ING/SYS2/SPLY HYDRAULIC/BRAKING AND STEER3GG ING/SYS2/CTL HYDRAULIC/BRAKING AND STEER1GG ING/SYS1/CTL HYDRAULIC/BRAKING AND STEER2GG ING/SYS1/IND AND/SPLY HYDRAULIC/PARK BRK/CTL/STBY 71GG HYDRAULIC/PARK BRK/CTL/NORM 70GG HYDRAULIC/HYD POWER/Y 3803GX HYDRAULIC/Y HYD/PUMP ENG2/MONG 3700GD HYDRAULIC/Y HYD/PUMP ENG2/CTL 3701GD Y HYD/ELEC/PUMP 3802GX Y HYD/ELEC/ELEC PUMP/NORM 3801GX

LOCATION M36 M35 M34 M33 N37 N36 N30 Q37 Q36 AB06 AB03

Subtask 32-44-11-941-051-A E.

Safety Precautions (1) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the Yellow hydraulic system: · on the panel 40VU in the cockpit, · on the ground service panel of the Yellow hydraulic system.

4.

Procedure (Ref. Fig. Accumulator 2582GM SHEET 1) Subtask 32-44-11-020-050-A A.

Removal of the Accumulator 2582GM (1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002) . (2) Remove the cap (10) and carefully turn the charging valve (11) to the open position to depressurize the accumulator (1). (3) Disconnect the connector (4) from the reducer (3). (4) Remove the nut (5) and the washer (6) from the reducer (3). (5) Remove the nuts (9), the washers (8) and release the clamps (7). (6) Remove the accumulator (1) from the aircraft structure. (7) Put blanking plugs on the disconnected line ends.

TASK 32-44-11-400-001-A Installation of the Accumulator WARNING:

MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.

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.


Page 4 of 19


MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT. WARNING:

OBEY THE HYDRAULIC SAFETY PROCEDURES.

WARNING:

BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

FIN : 2582GM 1.

Reason for the Job Self explanatory

2


Fixtures, Tools, Test and Support Equipment REFERENCE No specific No specific

B.

QTY DESIGNATION AR WARNING NOTICE(S) Torque wrench: range to between 0.67 and 13.50 m.daN (4.94 and 99.57 lbf.ft)

Consumable Materials REFERENCE (Material No. 02-ABA1) (Material No. 14-QFB1)

DESIGNATION Phosphate Ester Hydraulic Fluid-General Power - Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -

C. Expendable Parts FIG.ITEM 2 13 2 13

DESIGNATION packing packing packing packing

IPC-CSN 32-44-03-01-030 32-44-03-01-060 32-44-83-02-160 32-44-83-02-170

D. Referenced Information REFERENCE (Ref. 12-12-29-611-001-A). (Ref. 20-23-22-910-001-A). (Ref. 29-00-00-910-002-A). (Ref. 29-10-00-864-002-A). (Ref. 29-14-00-614-001-A). (Ref. 29-23-00-860-001-A). (Ref. 29-23-00-860-002-A). (Ref. 32-12-00-010-001-A). (Ref. 32-12-00-410-001-A). (Ref. 32-43-00-710-001-A).

DESIGNATION Fill the Hydraulic Fluid Reservoir with a Hand Pump Marking of the Unions after Application of Standard or Specific Tightening Torque Safety Procedures of the Hydraulic System Depressurize the Yellow Hydraulic System Depressurization of the Hydraulic Reservoirs Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU) Connection of the Isolation Coupling of the Power Transfer Unit (PTU) Open the Main Gear Doors for Access Close the Main Gear Doors after Access Operational Check of Alternate Braking System


Page 5 of 19


REFERENCE (Ref. 32-43-00-870-002-A). (Ref. 32-44-11-200-001-A).

DESIGNATION Bleeding of the High Pressure Alternate Braking System Functional Check of Parking/Emergency Brake Accumulator by Reading the Charge Pressure on the Accumulator Gauge Repair to a layer of Corrosion Preventive Compound

(Ref. 51-75-13-916-002-A). Accumulator 2582GM SHEET 1 3.

Job Set-up Subtask 32-44-11-860-051-A A.

Aircraft Maintenance Configuration (1) Make sure that the PTU isolation coupling is disconnected (Ref. AMM TASK 29-23-00-860-001) . (2) Make sure that the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-10-00-864-002) . (3) Make sure that the reservoir of the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001) .

Subtask 32-44-11-865-053-A B.

Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged: PANEL

DESIGNATION

FIN

LOCATION

** ON A/C 001-018, 025-025, 027-028, 053-104, 201-250, 301-500, 513-700 49VU ABCU &/Y BRK/PRESS IND 61GG C10 ** ON A/C 108-200, 251-300 49VU L/G/Y BRK/PRESS/IND ** ON A/C ALL 121VU 121VU 121VU 121VU 121VU 121VU 121VU 121VU 121VU 123VU 123VU

61GG

HYDRAULIC/BRAKING AND STEER4GG ING/SYS2/SPLY HYDRAULIC/BRAKING AND STEER3GG ING/SYS2/CTL HYDRAULIC/BRAKING AND STEER1GG ING/SYS1/CTL HYDRAULIC/BRAKING AND STEER2GG ING/SYS1/IND AND/SPLY HYDRAULIC/PARK BRK/CTL/STBY 71GG HYDRAULIC/PARK BRK/CTL/NORM 70GG HYDRAULIC/HYD POWER/Y 3803GX HYDRAULIC/Y HYD/PUMP ENG2/MONG 3700GD HYDRAULIC/Y HYD/PUMP ENG2/CTL 3701GD Y HYD/ELEC/PUMP 3802GX Y HYD/ELEC/ELEC PUMP/NORM 3801GX

C10

M36 M35 M34 M33 N37 N36 N30 Q37 Q36 AB06 AB03

Subtask 32-44-11-941-052-A C.

Safety Precautions (1) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Yellow hydraulic system: · on the panel 40VU in the cockpit, · on the ground service panel of the Yellow hydraulic system.

Subtask 32-44-11-560-050-A Print Date: October 30, 2015 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.

Page 6 of 19


D.

Preparation of the Replacement Component WARNING: USE GOGGLES 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) Remove and discard the lockwire from the adapter (12) of the removed accumulator (1). (2) Remove the adapter (12). Remove and discard the packing (13) from the adapter (12). (3) Remove the reducer (3). Remove and discard the packing (2) from the reducer (3). (4) Install blanking plugs in the open ports of the removed accumulator (1). (5) Make sure that the parts retained from the removed component are clean and in the correct condition. (6) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No. 02-ABA1) to the threads of the reducer (3). (7) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No. 02-ABA1) to the new IPC CSN (32-44-03-01-030) packing (2) or IPC -CSN (32-44-83-02-160) packing (2). (8) Install the packing (2) on the reducer (3). (9) Remove the blanking plugs from the new accumulator (1). (10) Install the reducer (3) in the accumulator (1). (11) TORQUE the reducer (3) to between 6.26 and 6.83 m.daN (46.17 and 50.37 lbf.ft). (12) Install the new IPC -CSN (32-44-03-01-060) packing (13) or IPC CSN (32-44-83-02-170) packing (13) on the adapter (12). (13) Install the adapter (12) in the accumulator (1). (14) TORQUE the adapter (12) to between 1.08 and 1.19 m.daN (95.58 and 105.31 lbf.in). (15) Safety the adapter (12) with Wire-Locking Dia: 0.8 mm CRES Nickel Alloy - (Material No. 14-QFB1).

Subtask 32-44-11-560-051-A E.

Preparation for Installation (1) Clean the component interface and/or the adjacent area. (2) Do an inspection of the component interface and/or the adjacent area. (3) Make sure that the parts retained from the removed component are clean and in the correct condition.

4.

Procedure (Ref. Fig. Accumulator 2582GM SHEET 1) Subtask 32-44-11-420-050-A A.

Installation of the Accumulator 2582GM (1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002) . (2) Put the accumulator (1) in the correct position on the aircraft structure. Make sure that you can read the pressure gage on the adapter (12). (3) Put the clamps (7) in position and install the washers (8) and the nuts (9). (4) Install the washer (6) and the nut (5). (5) Remove the blanking plugs and connect the connector (4) to the reducer (3). (6) TORQUE the connector (4) to between 5.4 and 5.9 m.daN (39.82 and 43.51 lbf.ft). (7) Paint a red line across the connector (4) (Ref. AMM TASK 20-23-22-910-001) .


Page 7 of 19


Subtask 32-44-11-865-054-A B.

Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): PANEL

DESIGNATION

FIN

LOCATION

** ON A/C 001-018, 025-025, 027-028, 053-104, 201-250, 301-500, 513-700 49VU ABCU &/Y BRK/PRESS IND 61GG C10 ** ON A/C 108-200, 251-300 49VU L/G/Y BRK/PRESS/IND ** ON A/C ALL 121VU 121VU 121VU 121VU 121VU 121VU 121VU 121VU 121VU 123VU 123VU

61GG

HYDRAULIC/BRAKING AND STEER4GG ING/SYS2/SPLY HYDRAULIC/BRAKING AND STEER3GG ING/SYS2/CTL HYDRAULIC/BRAKING AND STEER1GG ING/SYS1/CTL HYDRAULIC/BRAKING AND STEER2GG ING/SYS1/IND AND/SPLY HYDRAULIC/PARK BRK/CTL/STBY 71GG HYDRAULIC/PARK BRK/CTL/NORM 70GG HYDRAULIC/HYD POWER/Y 3803GX HYDRAULIC/Y HYD/PUMP ENG2/MONG 3700GD HYDRAULIC/Y HYD/PUMP ENG2/CTL 3701GD Y HYD/ELEC/PUMP 3802GX Y HYD/ELEC/ELEC PUMP/NORM 3801GX

C10

M36 M35 M34 M33 N37 N36 N30 Q37 Q36 AB06 AB03

Subtask 32-44-11-860-052-A C.

Preparation for Test (1) Do the nitrogen pressure check on brake accumulator (Ref. AMM TASK 32-44-11-200-001) . (2) Connect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-002) . (3) Bleed the alternate brake system (Ref. AMM TASK 32-43-00-870-002) . (4) If necessary fill the reservoir of the Yellow hydraulic system to the correct level (Ref. AMM TASK 12-12-29-611-001) . (5) Open the right MLG door (Ref. AMM TASK 32-12-00-010-001) .

Subtask 32-44-11-710-050-A D.

Test (1) Do an operational test of the alternate braking system with anti-skid (Ref. AMM TASK 32-43-00-710-001) . (2) Make sure that there is no hydraulic fluid leakage from the accumulator 2582GM.

5.

Close-up Subtask 32-44-11-410-051-A A.

Close Access (1) Apply corrosion protection to the connector (4) and the adjacent area (Ref. AMM TASK 51-75-13-916-002) . (2) Remove the container.


Page 8 of 19


(3) Remove the warning notice(s). (4) Remove the access platform(s). (5) Make sure that the work area is clean and clear of tools and other items. (6) Close the right MLG door (Ref. AMM TASK 32-12-00-410-001) . (7) Remove the ground support and maintenance equipment, the special and standard tools and all other items. Figure 32-44-11-991-00100-A / SHEET 1/1 - Accumulator 2582GM

32-44-11 PB 601 CONF 00 - ACCUMULATOR BRAKE YELLOW PRESSURE - INSPECTION/CHECK TASK 32-44-11-200-001-A Functional Check of Parking/Emergency Brake Accumulator by Reading the Charge Pressure on the Accumulator Gauge WARNING:

MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR.

FIN : 2582GM 1.

Reason for the Job Refer to the MPD TASK: 324411-01 FUNCTIONAL CHECK OF PARKING/EMERGENCY BRAKE ACCUMULATOR BY READING THE CHARGE PRESSURE ON THE ACCUMULATOR GAUGE

2


Fixtures, Tools, Test and Support Equipment REFERENCE No specific No specific No specific

B.

QTY AR AR AR

DESIGNATION ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE SAFETY CLIP - CIRCUIT BREAKER WARNING NOTICE(S)

Consumable Materials REFERENCE (Material No. 14-CCB6)

DESIGNATION Testing Medium-Leak Detection - Oxygen System

C. Work Zones and Access Panels ZONE/ACCESS 148 744

ZONE DESCRIPTION MAIN GEAR WELL AND HYDRAULIC COMPARTMENT MAIN DOOR

D. Referenced Information


Page 9 of 19


REFERENCE (Ref. 12-14-32-614-002-A). (Ref. 24-42-00-861-001-A). (Ref. 24-42-00-862-001-A). (Ref. 29-00-00-864-001-A). (Ref. 29-00-00-870-007-A). (Ref. 29-10-00-864-002-A). (Ref. 29-24-00-863-001-A). (Ref. 32-12-00-010-001-A). (Ref. 32-12-00-410-001-A). (Ref. 32-44-11-000-001-A). (Ref. 32-44-11-400-001-A). (Ref. 32-44-13-000-001-A). (Ref. 32-44-13-400-001-A). (Ref. 32-44-14-000-001-A). (Ref. 32-44-14-400-001-A).

DESIGNATION Nitrogen Filling of the Yellow Hydraulic System, Brake Pressure Accumulator Energize the Ground Service Network from the External Power De-energize the Ground Service Network Supplied from the External Power Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action Bleeding Procedure of the Yellow Hydraulic System Downstream of the Engine Pump Depressurize the Yellow Hydraulic System Pressurize the Yellow Hydraulic System with the Electric Pump Open the Main Gear Doors for Access Close the Main Gear Doors after Access Removal of the Accumulator Installation of the Accumulator Removal of the Charging Valve Installation of the Charging Valve Removal of the Accumulator Pressure Gage Installation of the Accumulator Pressure Gage

** ON A/C 108-200 PRE SB 32-1215 for A/C 108-109 Accumulator Nitrogen Fill-Pressure SHEET 1 Brake Accumulator Nitrogen Fill Pressure Reporting Sheet SHEET 1 ** ON A/C 001-018, 025-025, 027-028, 053-104, 201-500, 513-700 POST SB 32-1215 for A/C 108-109 Accumulator Nitrogen Fill-Pressure SHEET 1


Page 10 of 19


PRESSURE (bar)

PRESSURE (psi)

114

1650

110

1600

107

1550

104

1510

100

1450 1400

97 93

1350

90

1310

87

1260

83

1200

80 -40 -40

-30 -22

-20 -4

-10 14

0 32

10 50

20 68

30 86

40 104

50 122

1160 60 (deg.C) (deg.F) 140 TEMPERATURE

N_MM_324411_6_AAB0_01_00

Figure 32-44-11-991-00400-A / SHEET 1/1 - Accumulator Nitrogen Fill-Pressure ** ON A/C 108-200 | PRE SB 32-1215 for A/C 108-109 Print Date: October 30, 2015 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.

Page 11 of 19


BRAKE ACCUMULATOR NITROGEN FILL PRESSURE REPORTING SHEET USE THIS FORM TO PROVIDE AIRBUS WITH THE RESULT OF BRAKE ACCUMULATOR NITROGEN FILL PRESSURE CHECK. THE REPORTED DATA WILL BE USED ONLY TO SUPPORT THE OPERATOR FOR TROUBLE SHOOTING. AIRBUS GUARANTEE THE CONFIDENTIALITY OF THE DATA RECEIVED. AIRBUS THANK YOU FOR THE TIME YOU HAVE TAKEN IN COMPLETING THIS FORM. PLEASE FILL IN THE FOLLOWING FORM: AIRCRAFT PROGRAM: MSN: CHARGE PRESSURE BEFORE REFILLING: TEMPERATURE DURING CHARGE PRESSURE MEASUREMENT (IN °C): CHARGE PRESSURE AFTER REFILLING: TEMPERATURE DURING CHARGE PRESSURE MEASUREMENT (IN °C): EXTERNAL LEAK CHECK PERFORMED: EXTERNAL LEAK NOTICED: ACCUMULATOR REPLACED:

YES/NO

YES/NO IF YES LOCATION: YES/NO

S/N OF THE ACCUMULATOR: IS IT A PERIODIC CHECK OR UNSCHEDULED CHECK: IF UNSCHEDULED, PLEASE PROVIDE THE REASON:

ADDITIONAL COMMENTS:

OPERATOR:

DATE:

NAME/TITLE:

FEEL FREE TO ATTACH TO THIS FORM ANY RELEVANT INFORMATION LIKE PICTURES, FLIGHT CREW REPORT, PFR, BSCU TSD. OTHER... PLEASE RETURN THIS COMPLETED SHEET TO: AIRBUS BRAKING AND STEERING SYSTEMS SUPPORT ENGINEERING-SEEL2 CUSTOMER SERVICES THROUGH E-MAIL TO: REPORTING. BRAKING-STEERING@AIRBUS. COM OR VIA YOUR RESIDENT CUSTOMER SUPPORT OFFICE. N_MM_324411_6_AAA0_01_02

Figure 32-44-11-991-00300-A / SHEET 1/1 - Brake Accumulator Nitrogen Fill Pressure Reporting Sheet ** ON A/C ALL Print Date: October 30, 2015 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.

Page 12 of 19


PRESSURE (bar)

PRESSURE (psi)

80

1160

77

1117

75

1088

72

1044

70

1015

68

986

65

943

63

914

61

885

59

850

56 -40 -40

-30 -22

-20 -4

-10 14

0 32

10 50

20 68

30 86

40 104

50 122

810 60 (deg.C) 140 (deg.F) TEMPERATURE

N_MM_324411_6_AAC0_01_00

Figure 32-44-11-991-00400-B / SHEET 1/1 - Accumulator Nitrogen Fill-Pressure ** ON A/C 001-018, 025-025, 027-028, 053-104, 201-500, 513-700 | EMB SB 32-1215 for A/C 251-251 | POST SB 32-1215 for A/C 108-109 Print Date: October 30, 2015 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.

Page 13 of 19


3.

Job Set-up Subtask 32-44-11-860-054-A A.

Aircraft Maintenance Configuration (1) Make sure that the wheel chocks are in position. (2) Energize the ground service network (Ref. AMM TASK 24-42-00-861-001) . (3) On the parking brake panel 110VU, make sure that the PARKING BRK control-switch (73GG) is in the OFF position. (4) Make sure that the Yellow hydraulic system is depressurized. (Ref. AMM TASK 29-00-00-864-001) . (5) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002) .

Subtask 32-44-11-865-055-A B.

Open, safety and tag this(these) circuit breaker(s): PANEL 121VU 121VU 121VU 121VU

DESIGNATION HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY HYDRAULIC/BRAKING AND STEERING/SYS2/CTL HYDRAULIC/BRAKING AND STEERING/SYS1/CTL HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY

FIN 4GG

LOCATION M36

3GG

M35

1GG

M34

2GG

M33

Subtask 32-44-11-941-050-A C.

Safety Precaution (1) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the yellow hydraulic · on the panel 40 VU in the cockpit · on the Ground Service Panel of the yellow hydraulic system, access door 198CB

Subtask 32-44-11-010-052-A D.

Get Access (1) Open the main door of the right main landing gear (Ref. AMM TASK 32-12-00-010-001) . (2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position in zone 148.

4.

Procedure

** ON A/C 108-200 PRE SB 32-1215 for A/C 108-109 Subtask 32-44-11-210-050-A A.

Check of the Nitrogen Fill Pressure (Ref. Fig. Accumulator Nitrogen Fill-Pressure SHEET 1) NOTE: If you do this check immediately after the aircraft landing, let the pressure become stable for one hour to get a more accurate value (temperature compensation of the accumulator).


Page 14 of 19


(1) When you do the check of the brake-accumulator nitrogen fill-pressure, record the data on the brakeaccumulator nitrogen fill-pressure reporting-sheet to help Airbus continuous monitoring. ** ON A/C 108-200 (Ref. Fig. Brake Accumulator Nitrogen Fill Pressure Reporting Sheet SHEET 1) ** ON A/C 108-200 PRE SB 32-1215 for A/C 108-109 (2) On the brake manifold 3016GM: (a) Operate the manual depressurization button on the brake relief valve 3067GM to release the hydraulic pressure in the brake system. (3) Let the pressure become stable for ten minutes before you read the value on the pressure gage. (4) Refer to the brake-accumulator pressure-gage 2585GM on the brake Yellow-pressure accumulator 2582GM. Make sure that the fill pressure is as follows: deg. C -40 -30 -20 -10 0 +10 +20 +30 +40 +50 +60

deg. F -40 -22 -4 +14 +32 +50 +68 +86 +104 +122 +140

"P" bar 80 83 87 90 93 97 100 104 107 110 114

"P" psi 1160 1200 1260 1310 1350 1400 1450 1510 1550 1600 1650

(a) If the value on the accumulator pressure gage is correct (value "P" plus or minus 50 psi (3.45 bar)): · No other maintenance is necessary, go to para 5. (b) If the value on the accumulator pressure gage is more than value "P" plus 50 psi (3.45 bar): · Adjust the nitrogen pressure as necessary (Ref. AMM TASK 12-14-32-614-002) . (c) If the value on the accumulator pressure gage is between value "P" minus 50 psi (3.45 bar) and "P" minus 217.56 psi (15.00 bar). · Adjust the nitrogen pressure as necessary (Ref. AMM TASK 12-14-32-614-002) . (d) If the value on the accumulator pressure gage is less than value "P" minus 217.56 psi (15.00 bar): 1

Adjust the nitrogen pressure as necessary (Ref. AMM TASK 12-14-32-614-002) .

2

Pressurize and depressurize the accumulator 2582GM as follows: · Pressurize the Yellow hydraulic system with the electric pump (Ref. AMM TASK 29-24-00-863-001) . · In the cockpit, do a check of the brake accumulator pressure on the triple pressureindicator 60GG. Let the pressure increase to 3000 psi (206.84 bar) and become stable. · When the accumulator pressure is stable, stop the electric pump.


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· On the brake manifold 3016GM, operate the manual depressurization button on the brake relief-valve 3067GM to depressurize the accumulator 2582GM. 3

After 20 minutes, do again the check of the value on the accumulator pressure gage. a

If the accumulator pressure has the correct value "P" plus or minus 101.53 psi (7.00 bar): · No more steps are necessary.

b

If the accumulator pressure is more than the correct value "P" plus 101.53 psi (7.00 bar): · Reduce the accumulator pressure to the correct value "P".

c

If the accumulator pressure is less than the correct value "P" minus 101.53 psi (7.00 bar), do a leak check with Testing Medium-Leak Detection - Oxygen System (Material No. 14-CCB6) on: · The charging valve 2586GM, and · The accumulator pressure-gage 2585GM, and · The adapter at the top end of the accumulator 2582GM. * If you find leaks, do a check of the specified torque value on the applicable nut or connection where you find a leak. Then, adjust the nitrogen pressure (Ref. AMM TASK 12-14-32-614-002) . * If you cannot stop the leaks, replace the defective equipment(s) as necessary: · Replace the accumulator 2582GM and/or its adapter (Ref. AMM TASK 32-44-11-000-001) and (Ref. AMM TASK 32-44-11-400-001) . · Replace the accumulator pressure-gage 2585GM (Ref. AMM TASK 32-44-14-000-001) and (Ref. AMM TASK 32-44-14-400-001) . · Replace the charging valve 2586GM (Ref. AMM TASK 32-44-13-000-001) and (Ref. AMM TASK 32-44-13-400-001) . * If there are no external leaks: · Replace the accumulator 2582GM (Ref. AMM TASK 32-44-11-000-001) and (Ref. AMM TASK 32-44-11-400-001) .

d

If you replace the accumulator, bleed the Yellow hydraulic system (Ref. AMM TASK 29-00-00-870-007) downstream of the engine pump to remove the nitrogen that can be in the hydraulic system (because of the accumulator).

** ON A/C 001-018, 025-025, 027-028, 053-104, 201-500, 513-700 POST SB 32-1215 for A/C 108-109 EMB SB 32-1215 for A/C 251-251 Subtask 32-44-11-210-050-B A.

Check of the Nitrogen Fill Pressure (Ref. Fig. Accumulator Nitrogen Fill-Pressure SHEET 1) NOTE: If you do this check immediately after the aircraft landing, let the pressure become stable for one hour to get a more accurate value (temperature compensation of the accumulator). (1) When you do the check of the brake-accumulator nitrogen fill-pressure, record the data on the brakeaccumulator nitrogen fill-pressure reporting-sheet to help Airbus continuous monitoring.

** ON A/C ALL (Ref. Fig. Brake Accumulator Nitrogen Fill Pressure Reporting Sheet SHEET 1) ** ON A/C 001-018, 025-025, 027-028, 053-104, 201-500, 513-700 POST SB 32-1215 for A/C 108-109 Print Date: October 30, 2015 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.

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EMB SB 32-1215 for A/C 251-251 (2) On the brake manifold 3016GM: (a) Operate the manual depressurization button on the brake relief valve 3067GM to release the hydraulic pressure in the brake system. (3) Let the pressure become stable for ten minutes before you read the value on the pressure gage. (4) Refer to the brake-accumulator pressure-gage 2585GM on the brake Yellow-pressure accumulator 2582GM. Make sure that the fill pressure is as follows: deg. C -40 -30 -20 -10 0 +10 +20 +30 +40 +50 +60

deg. F -40 -22 -4 +14 +32 +50 +68 +86 +104 +122 +140

"P" bar 56 59 61 63 65 68 70 72 75 77 80

"P" psi 810 850 885 914 943 986 1015 1044 1088 1117 1160

(a) If the value on the accumulator pressure gage is correct (value "P" plus or minus 50 psi (3.45 bar)): · No other maintenance is necessary, go to para 5. (b) If the value on the accumulator pressure gage is more than value "P" plus 50 psi (3.45 bar): · Adjust the nitrogen pressure as necessary (Ref. AMM TASK 12-14-32-614-002) . (c) If the value on the accumulator pressure gage is between value "P" minus 50 psi (3.45 bar) and "P" minus 217.56 psi (15.00 bar). · Adjust the nitrogen pressure as necessary (Ref. AMM TASK 12-14-32-614-002) . (d) If the value on the accumulator pressure gage is less than value "P" minus 217.56 psi (15.00 bar): 1

Adjust the nitrogen pressure as necessary (Ref. AMM TASK 12-14-32-614-002) .

2

Pressurize and depressurize the accumulator 2582GM as follows: · Pressurize the Yellow hydraulic system with the electric pump (Ref. AMM TASK 29-24-00-863-001) . · In the cockpit, do a check of the brake accumulator pressure on the triple pressureindicator 60GG. Let the pressure increase to 3000 psi (206.84 bar) and become stable. · When the accumulator pressure is stable, stop the electric pump. · On the brake manifold 3016GM, operate the manual depressurization button on the brake relief-valve 3067GM to depressurize the accumulator 2582GM.

3

After 20 minutes, do again the check of the value on the accumulator pressure gage. a

If the accumulator pressure has the correct value "P" plus or minus 101.53 psi (7.00 bar): · No more steps are necessary.


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b

If the accumulator pressure is more than the correct value "P" plus 101.53 psi (7.00 bar): · Reduce the accumulator pressure to the correct value "P".

c

If the accumulator pressure is less than the correct value "P" minus 101.53 psi (7.00 bar), do a leak check with Testing Medium-Leak Detection - Oxygen System (Material No. 14-CCB6) on: · The charging valve 2586GM, and · The accumulator pressure-gage 2585GM, and · The adapter at the top end of the accumulator 2582GM. * If you find leaks, do a check of the specified torque value on the applicable nut or connection where you find a leak. Then, adjust the nitrogen pressure (Ref. AMM TASK 12-14-32-614-002) . * If you cannot stop the leaks, replace the defective equipment(s) as necessary: · Replace the accumulator 2582GM and/or its adapter (Ref. AMM TASK 32-44-11-000-001) and (Ref. AMM TASK 32-44-11-400-001) . · Replace the accumulator pressure-gage 2585GM (Ref. AMM TASK 32-44-14-000-001) and (Ref. AMM TASK 32-44-14-400-001) . · Replace the charging valve 2586GM (Ref. AMM TASK 32-44-13-000-001) and (Ref. AMM TASK 32-44-13-400-001) . * If there are no external leaks: · Replace the accumulator 2582GM (Ref. AMM TASK 32-44-11-000-001) and (Ref. AMM TASK 32-44-11-400-001) .

d

If you replace the accumulator, bleed the Yellow hydraulic system (Ref. AMM TASK 29-00-00-870-007) downstream of the engine pump to remove the nitrogen that can be in the hydraulic system (because of the accumulator).

** ON A/C ALL 5.

Close-up Subtask 32-44-11-865-056-A A.

Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): PANEL 121VU 121VU 121VU 121VU

DESIGNATION HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY HYDRAULIC/BRAKING AND STEERING/SYS2/CTL HYDRAULIC/BRAKING AND STEERING/SYS1/CTL HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY

FIN 4GG

M36

LOCATION

3GG

M35

1GG

M34

2GG

M33

Subtask 32-44-11-942-053-A B.

Removal of Equipment (1) Make sure that the work area is clean and clear of tools and other items. (2) Remove the warning notice(s). (3) Remove the access platform.

Subtask 32-44-11-410-050-A C.

Close Access (1) Close the main door of the right main landing gear (Ref. AMM TASK 32-12-00-410-001)


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Subtask 32-44-11-862-050-A D.

Aircraft Maintenance Configuration (1) Put the aircraft back to its initial configuration.

(2) De-energize the Ground Service Network (Ref. AMM TASK 24-42-00-862-001) . Figure 32-44-11-991-00300-A / SHEET 1/1 - Brake Accumulator Nitrogen Fill Pressure Reporting Sheet ** ON A/C 108-200 PRE SB 32-1215 for A/C 108-109 Figure 32-44-11-991-00400-A / SHEET 1/1 - Accumulator Nitrogen Fill-Pressure ** ON A/C 001-018, 025-025, 027-028, 053-104, 201-500, 513-700 POST SB 32-1215 for A/C 108-109 EMB SB 32-1215 for A/C 251-251 Figure 32-44-11-991-00400-B / SHEET 1/1 - Accumulator Nitrogen Fill-Pressure

End of document


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Airbus a320 Brake Accu Pnc

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