A320飞机维护手册 AMM HYDRAULIC POWER 液压1(52)

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R R R R R R R R  (i) If the result is not satisfactory after you do the bleeding two times you must: - do the bleeding procedure of the Yellow hydraulic system upstream of the PTU (Ref. TASK 29-00-00-870-005). - do the bleeding procedure of the Yellow hydraulic system upstream of the Yellow E-Pump (Ref. TASK 29-00-00-870-006). - do the bleeding procedure of the Yellow hydraulic system downstream of the engine pump (Ref. TASK 29-00-00-870-007).
 (6) Remove the container.
 (7) Make sure that the level of the hydraulic fluid in the reservoir of the Yellow hydraulic system is correct. Add fluid as necessary (Ref. TASK 12-12-29-611-001) or (Ref. TASK 12-12-29-611-002).
 (8) Make sure that the air pressure in the reservoir of the Yellow hydraulic system is not less than 50 psi (3.4473 bar). If necessary pressurize the reservoir (Ref. TASK 29-14-00-614-002).
 5. Close-up________
 Subtask 29-00-00-410-065
 A. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items.
 (2) Close the left fan cowl door (Ref. TASK 71-13-00-410-040).
 Subtask 29-00-00-865-071
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1701GK, 3701GD.

 

 TASK 29-00-00-870-005
 Bleeding Procedure of the Yellow Hydraulic System Upstream of the PTU
 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.
 WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS ARE CLEAR.
_______ MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE.
 1. Reason for the Job
__________________
 Do this procedure after maintenance of the Yellow hydraulic system upstream of the PTU.
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific Torque Wrench : range 0.20 to 3.60 m.daN
 (2.00 to 26.00 lbf.ft)
 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 29-00-00-910-002 Safety Procedures of the Hydraulic System 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
 the Ground Connector 32-12-00-010-001 Open the Main Gear Doors for Access 32-12-00-410-001 Close the Main Gear Doors after Access
 1EFF : ALL 1 29-00-00Page 224 1 1 Feb 01/01R 1 1 1CES 1

 -------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
R  29-00-00-870-004 
R 
R  29-00-00-870-006 
R 
R  29-00-00-870-007 
R 
3. Job Set-up__________
 Subtask 29-00-00-860-065

Bleeding Procedure of the Yellow Hydraulic System Upstream of the Engine Pump (for corrective action) Bleeding Procedure of the Yellow Hydraulic System Upstream of the Yellow E-Pump (for corrective action) Bleeding Procedure of the Yellow Hydraulic System Downstream of the Engine Pump (for corrective action)
 A. 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 replaced component is correctly installed.

 (3)
 Make sure that the hydraulic reservoir of the Yellow hydraulic system is pressurized. If necessary pressurize it (Ref. TASK 29-14-00-614-002).

 Subtask 29-00-00-010-064
 B. Open the main doors of the main landing gear (Ref. TASK 32-12-00-010-001).
 4. Procedure
_________ Subtask 29-00-00-870-060
 A. Bleeding Procedure of the Yellow Hydraulic System Upstream of the PTU CAUTION : USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN
_______ YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU USE THE SECOND WRENCH, YOU WILL NOT LOOSEN OR TIGHTEN THE UNION TOO MUCH.
　
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