A320飞机维护手册 AMM LANDING GEAR 起落架4(110)

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R  Subtask 32-31-14-865-056 
R R R  E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1GA, 2GA, 52GA
 Subtask 32-31-14-869-053
 F. After you close the LGCIU circuit breakers, put the aircraft back to the correct (ground) condition (Ref. TASK 32-00-00-860-002).
 Subtask 32-31-14-420-053
 G. Connection of the Rod (21)
 (1) Pressurize the Green hydraulic system (Ref. TASK 29-10-00-863-001).
 (2) Make sure that the SAFETY PIN - NLG DOOR (98D32203502000) are installed in the rigging holes of the left and right nose gears doors
 (3) Remove the safety pin of the control lever. Put the control lever in the DOOR CLOSED position. Install the safety pin of the contol lever.
 (4) Depressurize the Green hydraulic system. (Ref. TASK 29-10-00-864-001).
 (5) Install the RIGGING PIN (98A32301000000) (29) on the forward lever (43) of the unit (12).
 (6) Put the end of the rod (21) in position on the lever (43). Make sure that you can install the bolt (25).

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 (7)
 If you cannot install the bolt (25), adjust the rod (21) as follows:

 (a)
 Cut and remove the lockwire. Remove the nuts (19).

 (b)
 Release the washers (20). Adjust the length of the rod (21) so that you can install the bolt (25).

 (c)
 TORQUE the nuts (19) to 0.59 m.daN (52.21 lbf.in).

 (d)
 Safety the nuts (19) with lockwire corrosion resistant steel 0.8 mm (0.03 in.).

 (e)
 Put the rod (21) in position and install the bolt (25).

 

 (8)
 Install the washer (28) and the nut (27). Tighten the nut (27) and safety with the new cotter pin (26).

 Subtask 32-31-14-914-050
 H. Apply the Sealants
 (1)
 Apply a light coat of SPECIAL MATERIALS (Material No. 05-005D) in zones F.

 (2)
 Apply a bead of SEALANTS (Material No. 09-013) around the flanges of the spacer (37) in zones G.

 Subtask 32-31-14-941-054
 J. Preparation for the Test
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Remove the RIGGING PIN (98A32301000000) (29) from the unit (12).

 (3)
 Remove the safety pin from the door ground-opening handle.

 (4)
 Put the door ground-opening handle in the open position.

 (5)
 Install the safety pin on the handle.

 (6)
 Make sure that the NLG door uplock assy (2534GM) is in the open configuration.

 (7)
 Remove the container below the NLG door uplock assy (2534GM).

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 (8)
 Make sure that the travel range of the NLG doors is clean and clear of tools and other items.

 (9)
 Remove the access platform(s).

 (10)
 Pressurize the Green hydraulic system
 (Ref. TASK 29-00-00-864-001).

 (11)
 Adjust the hydraulic power unit for minimum pressure and flow rate.

 (12)
 Do 5 full DOOR CLOSE/DOOR OPEN cycles (Ref. TASK 32-22-00-010-001), (Ref. TASK 32-22-00-410-001) to bleed the hydraulic system.

 Subtask 32-31-14-720-050
 K. Functional Test
 (1)
 Do an operational test of the landing gear doors (Ref. TASK 32-31-00-710-002).

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

 (3)
 Put the access platform in position below the NLG door uplock assy (2534GM).

 (4)
 Make sure that there is no hydraulic fluid leakage from the NLG door uplock assy (2534GM).

 (5)
 If necessary fill the reservoir of the Green hydraulic system to the correct level (Ref. TASK 12-12-29-611-001).

 5. Close-up
________
 (Ref. Fig. 401/TASK 32-31-14-991-001) Subtask 32-31-14-410-051
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Remove the warning notice(s).

 (3)
 Remove the access platform(s).

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 (4)
 Remove the ground support and maintenance equipment, the special and

 standard tools and all other items.

 (5)
 Close the doors of the nose landing gear (Ref. TASK 32-22-00-410-001).

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