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32-22-00-010-001 Nose Gear Doors - Ground Doors Opening 32-22-00-410-001 Nose Gear Doors - Ground Doors Closing 32-31-41-991-001 Fig. 401 32-31-41-991-002 Fig. 402 32-31-41-991-003 Fig. 403
3. Job Set-up
__________ Subtask 32-31-41-860-050
A. Aircraft Maintenance Configuration
(1)
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.
(2)
Make sure that the safety barriers are in position.
(3)
Make sure that the NLG doors are open (Ref. TASK 32-22-00-010-001).
(4)
Make sure that the access platform is in position below the related NLG door.
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4. Procedure
_________ (Ref. Fig. 401/TASK 32-31-41-991-001, 402/TASK 32-31-41-991-002, 403/TASK 32-31-41-991-003) Subtask 32-31-41-820-050
A. Adjust the NLG Main Door Control Rod (4)
(1)
Cut and remove the lockwire and loosen the nuts (12).
(2)
Loosen the locking devices (13).
(3)
Adjust the rod length between the eye-end centers to the dimension L = 848 mm (33.3858 in.) plus or minus 0.2 mm (0.0078 in.).
(4)
Install the locking devices (13).
(5)
TORQUE the nuts (12) to between 1.8 and 2.5 m.daN (13.27 and 18.43 lbf.ft) and safety them with lockwire corrosion resistant steel dia.
0.8 mm (0.032 in).
Subtask 32-31-41-420-050
B. Connection of the NLG Main Door Control Rod (4) CAUTION : CONNECT THE ROD FROM THE LEFT DOOR TO THE AFT BELLCRANK AND THE
_______ ROD FROM THE RIGHT DOOR TO THE FWD BELLCRANK. IF YOU CONNECT THE RODS TO THE WRONG BELLCRANKS, THE RODS WILL BECOME DAMAGED DURING OPERATION OF THE DOORS.
CAUTION : WHEN YOU PUT THE CONNECTING RODS IN POSITION, MAKE SURE THAT
_______ THE TAPERED ENDS OF THEM ARE CONNECTED TO THE UPPER BELLCRANK. RODS INSTALLED IN THE OPPOSITE DIRECTION CAN CAUSE IMPORTANT DAMAGE TO THE MECHANISM.
R (1) Apply a thin layer of COMMON GREASE (Material No. 04-022) to the bolts (7) and (6).
(2) Put the rod (4) in position. CAUTION : INSTALL THE BOLTS AT THE TOP OF THE CONTROL RODS WITH THE
_______ HEADS ON THE INNER SIDE OF THE MECHANISM.
-IF NOT, THE NUTS CAN TOUCH THE CRANK LEVERS AND CAUSE DAMAGE WHEN THE MECHANISM OPERATES.
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Control Rod - Upper Attachment
Figure 402/TASK 32-31-41-991-002
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Control Rod - Upper and Lower Attachment Gaps
Figure 403/TASK 32-31-41-991-003
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(3)
Install the bolts (6) with the heads on the inner side of the mechanism.
(4)
Make sure that the bushes (8) and (5) are in position.
(5)
Install the washers (9) and (3), install the nuts (11) and (2).
(6)
TORQUE the nuts (11) and (2) to between 0.6 and 0.61 m.daN (53.09 and
53.98 lbf.in).
(7)
Make sure that the gaps A and B are more than or equal to 0.1 mm (0.0039 in.).
(8)
If the gaps A and B are correct, safety the nuts (11) and (2) with the new cotter pin (10) and the new cotter pin (1).
(9)
If the gap A is not correct:
(a)
Remove the nut (11) and the washer (9).
(b)
Remove the bolt (7) and disconnect the rod (4).
(c)
Remove the bush (8) and install the new bush (8).
R (d) Apply a thin layer of COMMON GREASE (Material No. 04-022) to the bolt (7).
(e)
Put the rod (4) in position.
(f)
Install the bolt (7), the washer (9) and the nut (11).
(g)
TORQUE the nut (11) to between 0.6 and 0.61 m.daN (53.09 and
53.98 lbf.in) and safety it with the nut cotter pin (10).
(10) If the gap B is not correct:
(a)
Remove the nut (2) and the washer (3).
(b)
Remove the bolt (6) and disconnect the rod (4).
(c) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM LANDING GEAR 起落架4(167)
