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C. Referenced Information
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REFERENCE DESIGNATION
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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
R 32-00-00-860-001 Flight Configuration Precautions with Electrical
R Power
R 32-00-00-860-002 Ground Configuration after Flight Configuration with
R Electrical Power 32-22-00-010-001 Nose Gear Doors - Ground Doors Opening 32-22-00-410-001 Nose Gear Doors - Ground Doors Closing 32-30-00-867-001 Retraction of the Landing Gear for Maintenance 32-30-00-867-002 Extension of the Landing Gear after Maintenance 32-31-00-720-003 Functional Test of the Normal Extension and Retraction of the Nose Landing Gear
3. Job Set-up
__________
Subtask 32-31-21-860-053
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 container is in position below the NLG uplock assy (2530GM).
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(7)
Make sure that the doors of the nose landing gear are open (Ref. TASK 32-22-00-010-001).
(8)
Make sure that the access platform is in position in zone 123.
(9)
Make sure that you obeyed the flight configuration precautions (Ref. TASK 32-00-00-860-001).
Subtask 32-31-21-865-061
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
49VU L/G/LGCIU/SYS1/NORM 1GA C09 121VU HYDRAULIC/LGCIU/SYS2 2GA Q35 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34
4. Procedure
_________ Subtask 32-31-21-110-051
A. Preparation for Installation
(1)
Clean the surfaces and the connection elements with CLEANING AGENTS (Material No. 11-002) and dry with filtered compressed air.
(2)
Apply mastinox D40 SPECIAL MATERIALS (Material No. 05-047) to the threads of the screws (1).
Subtask 32-31-21-420-053
B. Installation of the Actuator of the NLG Uplock Assy
(1)
Put the actuator (2) in position on the NLG uplock.
(2)
Install and tighten the three screws (1) on the actuator (2).
(3)
Safety the three screws (1) with MISCELLANEOUS (Material No. 19-010).
(4)
Remove the blanking plugs from the disconnected line ends of the hydraulic lines (3) and (4).
(5)
Connect the hydraulic lines (3) and (4) to the actuator (2).
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(6) TORQUE the hydraulic lines (3) and (4) to between 1.5 and 1.7 m.daN (11.06 and 12.53 lbf.ft).
R Subtask 32-31-21-865-062
R R R C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1GA, 2GA, 52GA
Subtask 32-31-21-869-054
D. After you close the LGCIU circuit breakers, put the aircraft back to the correct (ground) condition (Ref. TASK 32-00-00-860-002).
Subtask 32-31-21-941-055
E. Preparation for the Test
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Remove the container below the NLG uplock assy (2530GM).
(3) Make sure that the NLG uplock assy (2530GM) is in the open configuration.
(4) Make sure that the travel range of the landing gear is clean.
(5) Remove the access platform below the NLG uplock assy (2530GM).
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