(3)
 Put the two new back-up rings (4) in position on the sides of the bobbins (5) without the identification groove (equipment side).

 (4)
 Put the two new square-section seals (6) in position on the sides of the bobbins (5) without the identification groove (equipment side).

 (5)
 Put the two new back-up rings (7) in position on the sides of the bobbins (5) with the identification groove (manifold side).

 (6)
 Put the two new O-rings (8) in position on the sides of the bobbins

 (5) with the identification groove (manifold side).

 (7)
 Install the two bobbins (5) with the identification grooves in the ports of the manifold (Ref. TASK 20-23-21-911-001).

 Subtask 29-12-32-420-051
 B. Installation of the Pressure Relief Valve
 (1)
 Clean the component interface and/or the adjacent area.

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Install the pressure relief valve (1) on the manifold.

 (4)
 Install the bolts (2) and the washers (3).

 (5)
 TORQUE the bolts (2) to between 1.6 and 1.8 m.daN (11.79 and 13.27 lbf.ft).

 (6)
 Connect the bonding jumper (8) to the pressure relief valve (1) and install the bolt (6), the washer (7) and the nut (9).

 (7)
 Tighten the nut (9).

 (8)
 Seal the connection of the bonding jumper (8) with SEALANTS (Material No. 09-013).

 (9)
 Apply STRUCTURE PAINTS (Material No. 16-003) (dyed blue) to the sealant.

 Subtask 29-12-32-790-050
 C. Test
 (1)
 Pressurize the reservoir of the Blue hydraulic system (Ref. TASK 29-14-00-614-002).

 (2)
 Make sure that the fluid level in the reservoir of the Blue hydraulic system is correct. Add fluid as necessary (Ref. TASK 12-12-29-611-001) or (Ref. TASK 12-12-29-611-002).

 (3)
 Pressurize the Blue hydraulic system (Ref. TASK 29-10-00-863-003).

 (4)
 Examine the connection of the pressure relief valve (1) and the manifold and make sure that there are no leaks.

 (5)
 Depressurize the Blue hydraulic system (Ref. TASK 29-10-00-864-003).

 5. Close-up
________ Subtask 29-12-32-860-051
 A. Put the aircraft back to the serviceable condition.
 (1)
 Remove the container.

 (2)
 Remove the warning notices from the cockpit and the ground service panel.

 Subtask 29-12-32-410-050
 B. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Close the access panel 195BB.

 (3)
 Close the access door 197EB.

 1EFF : ALL 1 29-12-32Page 410 1 1 Nov 01/00R 1 1 1CES 1

 Subtask 29-12-32-865-052
 C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 2701GJ, 2702GJ.
 1EFF : ALL 1 29-12-32Page 411 1 1 Nov 01/00R 1 1 1CES 1

 PRIORITY VALVE (2064GM) - REMOVAL/INSTALLATION
______________________________________________
 TASK 29-12-33-000-001
 Removal of the Priority Valve of the Blue Hydraulic System (2064GM)
 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 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
　
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