A320飞机维护手册 AMM LANDING GEAR 起落架5(40)

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 (4) TORQUE the union (3) (outlet connection) to 5.875 m.daN (43.32 lbf.ft).
 Subtask 32-31-56-942-050
 B. Preparation for the Test
 (1)
 Remove the container.

 (2)
 Remove the access platform(s).

 (3) Close the NLG doors (Ref. TASK 32-22-00-410-001). Subtask 32-31-56-720-050
 C. Functional Test
 (1)
 Do a functional test of the retraction/extension of the nose landing gear. (Ref. TASK 32-31-00-720-003)

 (2)
 Open the NLG doors (Ref. TASK 32-22-00-010-001).

 (3)
 Make sure that there is no hydraulic fluid leakage from the restrictor valve (2691GM).

 (4)
 If necessary fill the reservoir of the Green hydraulic system to the correct level (Ref. TASK 12-12-29-611-001) or (Ref. TASK 12-12-29-611-002).

 5. Close-up
________ Subtask 32-31-56-410-050
 A. Close Access
 (1)
 Remove the warning notice(s).

 (2)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (3)
 Close the doors of the nose landing gear (Ref. TASK 32-22-00-410-001).

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 RESTRICTOR VALVE - NLG DOOR OPENING (2535GM) - REMOVAL/INSTALLATION
___________________________________________________________________ TASK 32-31-57-000-001 Removal of the NLG Door Opening Restrictor Valve (2535GM)
 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 plug
 No specific safety barriers
 No specific warning notice(s)
 No specific access platform 2.06 m (6 ft. 9 in.)
 No specific container 5 l (1.3208 USgal)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
 Configuration before Maintenance Action 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 32-22-00-010-001 Nose Gear Doors - Ground Doors Opening 32-31-57-991-001 Fig. 401
 3. Job Set-up
__________ Subtask 32-31-57-860-051
 A. Aircraft Maintenance Configuration
 (1) Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001)
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 (2) Depressurize the reservoir of the Green hydraulic system. (Ref. TASK 29-14-00-614-001)
 Subtask 32-31-57-941-050
 B. Safety Precautions
 (1)
 In the cockpit, on the panel 400VU put warning notice(s) in position to tell persons not to operate the landing gear control lever.

 (2)
 Put warning notice(s) in position to tell persons not to pressurize the Green hydraulic system: - on the panel 40VU in the cockpit, - on the ground service panel of the Green hydraulic system access

 door (197CB).

 (3)
 Put the safety barriers in position.

 (4)
 Put the container in position below the restrictor valve (2535GM) to collect the hydraulic fluid leakage.

 Subtask 32-31-57-010-050
 C. Get Access
 (1)
 Open the doors of the nose landing gear (Ref. TASK 32-22-00-010-001).

 (2)
 Put the access platform in position in zone 123.

 4. Procedure
_________
 (Ref. Fig. 401/TASK 32-31-57-991-001) Subtask 32-31-57-020-051
 A. Removal of the Restrictor Valve
 (1)
 Disconnect the hydraulic line (3) and put a blanking plug on the disconnected line end.

 (2)
 Disconnect the hydraulic line (1) and put a blanking plug on the disconnected line end.

 (3)
 Remove the restrictor valve (2).

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 Restrictor Valve
 Figure 401/TASK 32-31-57-991-001
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