Airbus A318 Manual

29-32-12 pb 401 conf 00 - pressure switch - system - removal/installation

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** ON A/C ALL

29-32-12 PB 401 CONF 00 - PRESSURE SWITCH - SYSTEM - REMOVAL/INSTALLATION

TASK 29-32-12-000-001-A

Removal of the System Pressure Switch

WARNING:

MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE

CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.

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.

FIN : 1151GN

Reason for the Job

Self explanatory

Job Set-up Information

Fixtures, Tools, Test and Support Equipment

REFERENCE

No specific

Referenced Information

REFERENCE

(Ref. 29-00-00-864-001-A).

(Ref. 29-00-00-910-002-A).

(Ref. 29-14-00-614-001-A).

(Ref. 29-23-00-860-001-A).

(Ref. 32-12-00-010-001-A).

System Pressure Switch of the Green and Yellow Hydraulic Systems SHEET 1

Print Date: July 05, 2018

Customer : CSN

Type : A318/A319/A320/A321

Rev. Date : May 01, 2018

29-32-12 PB 401 CONF 00 - PRESSURE

SWITCH - SYSTEM - REMOVAL/INSTALLATION

QTY DESIGNATION

ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE

CAP - BLANKING

CONTAINER - HYDRAULIC FLUID RESISTANT

AR PLUG - BLANKING

AR SAFETY CLIP - CIRCUIT BREAKER

WARNING NOTICE(S)

DESIGNATION

Put the Related Hydraulic System in the Depressurized Configuration

before Maintenance Action

Safety Procedures of the 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

Manual : AMM

Selected applicability : 0054-0054

Page 1 of 19

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Summary of Contents for Airbus A318

Page 1 (Ref. 32-12-00-010-001-A). Open the Main Gear Doors for Access System Pressure Switch of the Green and Yellow Hydraulic Systems SHEET 1 Print Date: July 05, 2018 Page 1 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 2 N_MM_293212_4_AAS0_01_00 Figure 29-32-12-991-00100-00-D / SHEET 1/1 - System Pressure Switch of the Green and Yellow Hydraulic Systems ** ON A/C ALL Print Date: July 05, 2018 Page 2 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 3 (3) Remove the nut (5), the washer (6), the screw (8), the bonding jumper (7) and the clamp (9) from the system pressure switch (2). (4) Cut and remove the lockwire. Print Date: July 05, 2018 Page 3 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 4 Bonding Straps in the Fuselage and in the Wings (this does not in- clude the tanks) (Ref. 29-00-00-864-001-A). Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action Print Date: July 05, 2018 Page 4 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 5 (8) Make sure that the CONTAINER - HYDRAULIC FLUID RESISTANT is in position below the location of the system pressure switch. Subtask 29-32-12-865-056-A Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged: Print Date: July 05, 2018 Page 5 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 6 C. Leak Test of the Hydraulic Connections (1) Pressurize the reservoir of the Green hydraulic system (Ref. AMM TASK 29-14-00-614-002) . Print Date: July 05, 2018 Page 6 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 7 AR PLUG - BLANKING No specific AR SAFETY CLIP - CIRCUIT BREAKER No specific WARNING NOTICE(S) Work Zones and Access Panels Print Date: July 05, 2018 Page 7 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 8: Zone Description
Safety Procedures of the Hydraulic System (Ref. 29-14-00-614-001-A). Depressurization of the Hydraulic Reservoirs System Pressure Switch of the Blue Hydraulic System SHEET 1 Print Date: July 05, 2018 Page 8 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 9 Z195BB 2151GN N_MM_293212_4_ACP0_01_00 Figure 29-32-12-991-00200-00-B / SHEET 1/1 - System Pressure Switch of the Blue Hydraulic System ** ON A/C ALL Print Date: July 05, 2018 Page 9 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 10 (6) Discard the O-ring. (7) Install a PLUG - BLANKING in the open ports. TASK 29-32-12-400-002-A Installation of the System Pressure Switch Print Date: July 05, 2018 Page 10 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 11 Pressurize the Blue Hydraulic System with a Hydraulic Ground Power- Cart (Ref. 29-10-00-863-003-A-01). Pressurize the Blue Hydraulic System with the Blue Electric Pump Print Date: July 05, 2018 Page 11 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 12 (1) Clean the component interfaces and the adjacent area. (2) Do an inspection of the component interfaces and the adjacent area. Print Date: July 05, 2018 Page 12 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 13 (3) Make sure that the work area is clean and clear of tools and other items. (4) Close the access panel 195BB. TASK 29-32-12-000-003-A Removal of the System Pressure Switch Print Date: July 05, 2018 Page 13 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 14 (1) Open one main door of the main gear (Ref. AMM TASK 32-12-00-010-001) . (2) Open the access panel 196BB. Subtask 29-32-12-865-052-A Print Date: July 05, 2018 Page 14 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 15 (6) Discard the O-ring. (7) Install a PLUG - BLANKING in the open ports. TASK 29-32-12-400-003-A Installation of the System Pressure Switch Print Date: July 05, 2018 Page 15 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 16 Safety Procedures of the Hydraulic System (Ref. 29-10-00-863-002-A). Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart (Ref. 29-10-00-864-002-A). Depressurize the Yellow Hydraulic System Print Date: July 05, 2018 Page 16 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 17 FLIGHT CONTROLS/ELAC1/NORM/ 15CE1 SPLY 105VU FLIGHT CONTROLS/ELAC2/STBY SPLY 16CE2 105VU FLT CTL/ELAC1/STBY SPLY 16CE1 121VU FLIGHT CONTROLS/SEC3/SPLY 21CE3 121VU FLIGHT CONTROLS/SEC2/SPLY 21CE2 Print Date: July 05, 2018 Page 17 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 18 (4) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002) . Subtask 29-32-12-710-052-A D. Do the operational test of the hydraulic pressure indicating system (Ref. AMM TASK 29-32-00-710-003) . Close-up Print Date: July 05, 2018 Page 18 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 19 Figure 29-32-12-991-00100-00-D / SHEET 1/1 - System Pressure Switch of the Green and Yellow Hydraulic Systems Figure 29-32-12-991-00200-00-B / SHEET 1/1 - System Pressure Switch of the Blue Hydraulic System End of document Print Date: July 05, 2018 Page 19 of 19 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.

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