2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
98A29103000000 1 ASSEMBLY TOOL - HYDRAULIC SEALS
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R Material No. 02-003  F NSA 307110 TYPE 4 HYDRAULIC FLUID (PHOSPHATE ESTER BASE) (Ref. 20-31-00)
 C. 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 20-21-12-911-001 Tightening Torques for Pipes Unions (not for OXYGEN
 unions) 20-23-11-911-001 Installation of the Tubing 29-00-00-870-001 Bleeding Procedure of the Green Hydraulic System
 Upstream of the Engine Pump

 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R  29-00-00-870-002 
R 
R  29-00-00-870-003 
R 
R  29-00-00-870-004 
R 
R  29-00-00-870-005 
R 
R  29-00-00-870-006 
R 
R  29-00-00-870-007 
R 
R  29-00-00-870-008 
R 
R  29-00-00-870-009 
R 
R  29-10-00-863-001 
R  29-10-00-863-002 
R  29-10-00-863-003 
R 
R  29-14-00-614-002 
R 
R  32-42-00-870-001 
R  32-43-00-612-001 
R 
R  32-43-00-870-002 
R 
20-23-11-991-040 
3. Job Set-up__________
 Subtask 20-23-11-911-054

Bleeding Procedure of the Green Hydraulic System Upstream of the PTU Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump Bleeding Procedure of the Yellow Hydraulic System Upstream of the Engine Pump Bleeding Procedure of the Yellow Hydraulic System Upstream of the PTU Bleeding Procedure of the Yellow Hydraulic System Upstream of the Yellow E-Pump Bleeding Procedure of the Yellow Hydraulic System Downstream of the Engine Pump Bleeding Procedure of the Blue Hydraulic System Upstream of the Blue E-Pump Bleeding Procedure of the Blue Hydraulic System Downstream of the Blue E-Pump Pressurize the Green Hydraulic System Pressurize the Yellow Hydraulic System Pressurize the Blue Hydraulic System with a Ground Power Supply Pressurization of the Hydraulic Reservoirs through the Ground Connector Bleeding of the Normal Braking at the Brake Units Filling and bleeding of the Low Pressure Control System of the Alternate Braking Bleeding of the High Pressure Alternate Braking SystemFig. 207
 A. Equipment ASSEMBLY TOOL - HYDRAULIC SEALS (98A29103000000).

R 1EFF : ALL 1 20-23-11Page 227 1 1 Aug 01/03 1 1 1CES 1

 4. Procedure
_________

 (Ref. Fig. 207/TASK 20-23-11-991-040) Subtask 20-23-11-911-055
 A. Removal of the O-Ring and Backup Washer CAUTION : DO NOT USE POINTED, SHARP OR METAL TOOLS TO REMOVE THE O-RING
_______ AND BACK UP WASHER. SHARP EDGES CAN CAUSE DAMAGE TO THE GROOVES OR CONTACT SURFACES OF THE UNION.
 (1) Use a spoon-type removal tool or a wedge-type removal tool with a hook to remove the O-ring and the backup washer.
 (2) Discard the O-ring and the backup washer. Subtask 20-23-11-911-056
 B. Installation of the Backup Washer and of the O-Ring CAUTION : DO NOT INSTALL THE REMOVED O-RING OR BACK UP WASHER AGAIN. YOU
_______ MUST ALWAYS INSTALL A NEW O-RING OR BACK UP WASHER BEFORE YOU INSTALL A REMOVED UNION. A COMPRESSED SEAL WILL NOT GO BACK TO ITS INITIAL CONDITION.
 (1) Safety precautions
 (a) Before you start the installation, make sure that you have the correct P/Ns.
 -O-ring : NAS1612-XX or NAS1602-XX
 -locknut : AN6289-XX
 -backup washer : MS28777-XX (leather) or MS28773-XX (teflon). NOTE : We recommend the installation of the teflon backup washer
____
 (MS28773-XX).

 (b)
 Make sure that the parts you install are clean and not damaged.
　
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