A320飞机维护手册 AMM HYDRAULIC POWER 液压5(84)

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_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
 WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps No specific blanking plugs No specific circuit breaker(s) safety clip(s) No specific warning notices No specific container 1.0 l (0.2641 USgal)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-23-21-911-001  Removal/Installation of the Bobbins from their Housings and Installation of O-rings, Square Seals, and Back-up Rings on the Bobbins
 29-00-00-864-001  Put the Related Hydraulic System in the Depressurized
 Configuration before Maintenance Action 29-00-00-910-002 Safety Procedures of the Hydraulic System 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-23-00-860-001 Disconnection of the Isolation Coupling of the Power
 Transfer Unit (PTU) 29-19-51-991-001 Fig. 403
R 1EFF : 001-049, 051-058, 101-101, 1 29-19-51Page 423 1 1 May 01/05 1 1 1CES 1

 3. Job Set-up
__________ Subtask 29-19-51-865-056
 A. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU HYDRAULIC/SOL VALVES/G/Y/B/LEAK/TST 1881GP N35
 Subtask 29-19-51-010-052
 B. Open the access panel 196BB. Subtask 29-19-51-860-052
 C. Aircraft Maintenance Configuration
 WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.

_______
 (1)
 Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).

 (2)
 Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).

 (3)
 Depressurize the reservoir of the Yellow hydraulic system. (Ref. TASK 29-14-00-614-001).

 (4)
 Disconnect the isolation coupling of the Power Transfer Unit (PTU) (Ref. TASK 29-23-00-860-001).

 Subtask 29-19-51-941-052
 D. Safety Precautions
 (1)
 Put the warning notices in position to tell persons not to pressurize the Yellow hydraulic system:

 -in the cockpit on the hydraulic section 40VU of the overhead panel, - on the ground service panel of the Yellow hydraulic system.

 (2)
 Put the container in position below the leakage-measurement solenoid valve (referred to as solenoid valve) to collect the hydraulic fluid.

R 1EFF : 001-049, 051-058, 101-101, 1 29-19-51Page 424 1 1 May 01/05 1 1 1CES 1

 4. Procedure
_________
 (Ref. Fig. 403/TASK 29-19-51-991-001) Subtask 29-19-51-020-052
 A. Removal of the Solenoid Valve 3150GP
 (1)
 Disconnect the electrical connector (1).

 (2)
 Put blanking caps on the disconnected electrical connector (1) and on the receptacle.

 (3)
 Remove the nut (2), the washer (3), the bolt (4) and the bonding strap (5) from the solenoid valve (6).

 (4)
 Hold the solenoid valve (6) and remove the three bolts (7) and the washers (8).

 (5)
 Remove the solenoid valve (6).

 (6)
 Remove the bobbins (10), (11) (Ref. TASK 20-23-21-911-001).

 (7)
 Install blanking plugs in the open ports of the manifold and the solenoid valve (6).

 (8)
 Remove and discard the square-section seals (16), (21), the O-rings (18), (19) and the back-up rings (17), (9), (20), (12).

R 1EFF : 001-049, 051-058, 101-101, 1 29-19-51Page 425 1 1 May 01/05 1 1 1CES 1

 Leakage Measurement Solenoid Valve
 Figure 403/TASK 29-19-51-991-001

R 1EFF : 001-049, 051-058, 101-101, 1 29-19-51Page 426 1 1 May 01/05 1 1 1CES 1

 TASK 29-19-51-400-003 Installation of the Leakage-Measurement Solenoid Valve (3150GP) 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
　
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