Customer : CSN
Type : A318/A319/A320/A321
Rev. Date : May 01, 2018
Manual : AMM
Selected applicability : 0054-0054
29-32-12 PB 401 CONF 00 - PRESSURE
SWITCH - SYSTEM - REMOVAL/INSTALLATION
Print Date: July 05, 2018 Page 5 of 19
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
REFERENCE DESIGNATION
(Ref. 29-00-00-910-002-A). Safety Procedures of the Hydraulic System
(Ref. 29-10-00-863-001-A). Pressurize the Green Hydraulic System with a Hydraulic Ground
Power-Cart
(Ref. 29-10-00-864-001-A). Depressurize the Green Hydraulic System
(Ref. 29-14-00-614-001-A). Depressurization of the Hydraulic Reservoirs
(Ref. 29-14-00-614-002-A). Pressurization of the Hydraulic Reservoirs through the Ground Con-
nector
(Ref. 29-14-00-614-002-A-01). Pressurization of the Hydraulic Reservoirs with the Auxiliary Power
Unit (APU)
(Ref. 29-23-00-860-001-A). Disconnection of the Isolation Coupling of the Power Transfer Unit
(PTU)
(Ref. 29-23-00-860-002-A). Connection of the Isolation Coupling of the Power Transfer Unit (PTU)
(Ref. 29-23-00-863-001-A). Pressurize the Green Hydraulic System from the Yellow Hydraulic Sys-
tem through the PTU with the Electric Pump
(Ref. 29-32-00-710-001-A). Operational Test of the System Pressure Switch , Pressure Transducer
and the associated Indicating System of the Green Hydraulic System
(Ref. 32-12-00-010-001-A). Open the Main Gear Doors for Access
(Ref. 32-12-00-410-001-A). Close the Main Gear Doors after Access
System Pressure Switch of the Green and Yellow Hydraulic Systems SHEET 1
3. Job Set-up
Subtask 29-32-12-860-055-A
A. Aircraft Maintenance Configuration
WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.
(1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002) .
(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 WARNING NOTICE(S) are in position to tell persons not to pressurize the Green
hydraulic system:
· In the cockpit on the hydraulic section 40VU of the overhead panel,
· On the ground service panel of the Green hydraulic system.
(5) Make sure that one main door of the main gear is open (Ref. AMM TASK 32-12-00-010-001) .
(6) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at the main door
of the main gear.
(7) Make sure that the isolation coupling of the Power Transfer Unit (PTU) is disconnected
(Ref. AMM TASK 29-23-00-860-001) .
(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
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
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