door (197CB).
(3)
Put the safety barriers in position.
(4)
Put the container in position below the restrictor valve (2691GM) to collect the hydraulic fluid leakage.
Subtask 32-31-56-010-050
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.
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4. Procedure
_________
(Ref. Fig. 401/TASK 32-31-56-991-001) Subtask 32-31-56-020-051
A. Removal of the NLG Extension Restrictor Valve
(1)
Disconnect the union (1). Install a blanking plug on the disconnected end.
(2)
Disconnect the union (3). Install a blanking plug on the disconnected end.
(3)
Remove the valve (2).
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NLG Extension Restrictor Valve
Figure 401/TASK 32-31-56-991-001
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TASK 32-31-56-400-001
Installation of the NLG Extension Restrictor Valve
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 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)
No specific Torque Wrench : range 0.20 to 3.60 m.daN
(2.00 to 26.00 lbf.ft) No specific Torque Wrench : range 1.00 to 10.00 m.daN
(8.00 to 75.00 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 29-00-00-864-001 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 32-22-00-410-001 Nose Gear Doors - Ground Doors Closing 32-31-00-720-003 Functional Test of the Normal Extension and
Retraction of the Nose Landing Gear 32-31-56-991-001 Fig. 401
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3. Job Set-up
__________ Subtask 32-31-56-860-051
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)
(2)
Make sure that the reservoir of the Green hydraulic system is depressurized (Ref. TASK 29-14-00-614-001).
(3)
In the cockpit, on the panel 400VU make sure that the warning notice(s) is (are) in position to tell persons not to operate the landing gear control lever.
(4)
Make sure that the warning notice(s) is (are) 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).
(5)
Make sure that the safety barriers are in position.
(6)
Make sure that the doors of the nose landing gear are open (Ref. TASK 32-22-00-010-001).
(7)
Make sure that the access platform is in position in zone 123.
(8)
Make sure that the container is in position below the restrictor valve (2691GM) to collect the hydraulic fluid leakage.
4. Procedure
_________ (Ref. Fig. 401/TASK 32-31-56-991-001) Subtask 32-31-56-420-050
A. Installation of the NLG Extension Restrictor Valve
(1)
Remove the blanking plug and connect the valve (2) to the union (1).
(2)
TORQUE the valve (2) (inlet connection) to 2.822 m.daN (20.81 lbf.ft).
(3)
Remove the blanking plug and connect the union (3) to the valve (2).
