A320飞机维护手册 AMM HYDRAULIC POWER 液压1(94)

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R  A. Depressurization 
R R  WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE_______ LANDING GEAR. 
R R R  (1) Set the Anti-skid and Nose Wheel switch to OFF and: - operate the left and right brake pedals as necessary to release the pressure in the yellow system accumulator. 
R R R  (2) On the gage (2585GM) of the brake accumulator (2582GM): - make sure that the pressure decreases to the nitrogen fill pressure (Ref. TASK 32-44-11-200-001). 
R  **ON A/C ALL
 5. Close-up________
 Subtask 29-10-00-860-098
 A. Put the aircraft back to its initial configuration.
 (1) Connect the isolation coupling of the Power Transfer Unit (PTU) (Ref. TASK 29-23-00-860-002).
 (2) Pressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-002).
 (3) Remove the warning notice(s).
 Subtask 29-10-00-865-081
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 3801GX, 3802GX, 3803GX.
 Subtask 29-10-00-410-073
 C. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items.
 (2) Close the right main gear door (Ref. TASK 32-12-00-410-001).

 

 TASK 29-10-00-863-001
 Pressurize the Green Hydraulic System
 WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
 WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
 WARNING : PRESSURIZE ONLY THE HYDRAULIC SYSTEM(S) THAT IS (ARE) NECESSARY FOR
_______ THE TASK. ISOLATE THE OTHER HYDRAULIC SYSTEM(S) BEFORE YOU SUPPLY HYDRAULIC POWER TO THE AIRCRAFT.
 CAUTION : DO NOT CONNECT GROUND POWER SUPPLIES TO THE GREEN AND YELLOW
_______ HYDRAULIC SYSTEMS AT THE SAME TIME. THIS COULD CAUSE:
 -THE PTU TO OPERATE TOO FAST
 -DAMAGE TO THE PTU IF ONE GROUND POWER SUPPLY IS IN OPERATION AND THE OTHER IS IN THE BY-PASS MODE.
 1. Reason for the Job
__________________
 To pressurize the Green hydraulic system for maintenance.
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-12-29-611-001 Fill the Hydraulic Fluid Reservoir with a Hand Pump 12-12-29-611-002 Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 29-10-00-864-001 Depressurize the Green Hydraulic System
 1EFF : ALL 1 29-10-00Page 218 1 1 May 01/01R 1 1 1CES 1

 -------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
R  29-14-00-614-001 29-14-00-614-002 29-23-00-860-001 29-23-00-860-002 31-60-00-860-001 31-60-00-860-002  Depressurization of the Hydraulic ReservoirsPressurization of the Hydraulic Reservoirs through the Ground ConnectorDisconnection of the Isolation Coupling of the Power Transfer Unit (PTU)Connection of the Isolation Coupling of the Power Transfer Unit (PTU)EIS Start ProcedureEIS Stop Procedure
 3. Job Set-up__________
 Subtask 29-10-00-010-050
 A. Open access door 197CB.
 Subtask 29-10-00-860-079
 B. Aircraft Maintenance Configuration
 CAUTION : DO NOT START OR DRY MOTOR THE ENGINES WITH A HYDRAULIC GROUND_______ POWER SUPPLY CONNECTED TO THE AIRCRAFT. IF YOU DO, YOU CAN CAUSE DAMAGE TO THE ENGINE PUMPS.
 (1) Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
 (2) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001).
 (3) On the ECAM control panel on the center pedestal, push the HYD pushbutton switch (P/BSW). Make sure that the lower (system) display shows the HYD page. 
R R R  (4) Make sure that the ECAM does not show these warnings: - Low air pressure in the Green reservoir - Low fluid level in the Green reservoir.

 

 (5) Obey the subsequent caution:
 CAUTION : DO NOT CONNECT GROUND POWER SUPPLIES TO THE GREEN AND_______ YELLOW HYDRAULIC SYSTEMS AT THE SAME TIME. THIS COULD CAUSE: - THE PTU TO OPERATE TOO FAST - DAMAGE TO THE PTU IF ONE GROUND POWER SUPPLY IS IN OPERATION AND THE OTHER IS IN THE BY-PASS MODE. 
　
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