(6)
Make sure that the lubrication points are clean and in good condition on the shaft (1).
**ON A/C 005-049, 055-099, 101-105, 151-199, 201-228, 301-302,
Subtask 32-21-27-420-050-A
B. Installation of the Torque Link Assy
(1)
Install the lower arm (Ref. Fig. 403A/TASK 32-21-27-991-002-A)
(a)
Install the stop (25), the bolts (27), the washers (24) and (26) and the nuts (23). Tighten the nuts (23).
(b)
Align the bores of the lower arm, of the lower bracket and of the new washer (20) and washer (21).
(c)
Install the lower shaft (31).
(d)
Engage the screw (22) with the screw head up.
(e)
Install the support (28).
(f)
Install the nut (30) and TORQUE it to between 1.7 and 2 m.daN
(12.53 and 14.74 lbf.ft).
(g)
Safety the nut (30) with the new cotter pin (29).
(2)
Install the upper arm (Ref. Fig. 405/TASK 32-21-27-991-003)
(a)
Put the support (65) in position on the upper arm of the torque links.
(b)
Install the screw (60), the washers (61) and (66) and the nut (68).
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(c)
Put the stop (64) in position on the support (65).
(d)
Install the screws (62), the washers (63) and (66) and the nuts (68).
(e)
TORQUE the nuts (68) to between 0.6 and 0.7 m.daN (53.09 and
61.94 lbf.in) and safety them with the new cotter pins (67).
(f)
Put the upper arm of the torque links and the washers (69) and
(70) in position.
(g)
Install the upper shaft (73), align the rigging holes.
(h)
Clean the screw (74) with CLEANING AGENTS (Material No. 11-004A) and dry it with filtered compressed air.
(i)
Apply a light coat of SPECIAL MATERIALS (Material No. 05-047) to the screw (74). Install the screw and correctly put the thread hole in position.
(j)
Install the washer (72).
(k)
Install the nut (71) but do not tighten at this time.
(l)
Apply a bead of SEALANTS (Material No. 09-001) at the screw head (74)/gear leg interface.
(3) Install the target support (Ref. Fig. 404/TASK 32-21-27-991-005)
(a)
Put the casing (134) in position on the screw (143).
(b)
Install the screw (141) and the new lockwasher (142).
(c)
Tighten the screw (141) and safety it with the lockwasher (142).
(d)
Install the screw (133), the washers (132) and (131) and the nut (130).
(e)
TORQUE the nut (130) to between 0.6 and 0.7 m.daN (53.09 and
61.94 lbf.in).
(f)
Put the rod (135) in position. Install the screw (136), the washer (138) and the nut (139).
(g)
TORQUE the nut (139) to between 0.6 and 0.75 m.daN (53.09 and
66.37 lbf.in).
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(h)
Safety the nut (139) with the new cotter pin (140).
(i)
Tighten the nut (71).
(4) Connect the center hinge (Ref. Fig. 402/TASK 32-21-27-991-001)
(a)
Make sure that there is no friction point when each torque link arm moves.
(b)
Clean the threads of the shaft (1) and the nut (6) with CLEANING AGENTS (Material No. 11-004A) and dry them with filtered compressed air.
(c)
Apply a light coat of COMMON GREASE (Material No. 04-022) to the washers (2), (3) and (4) and to the shaft (1).
(d)
Align the center bores of the upper and lower arms of the torque links and install the washers (2), (3) and (4).
(e)
Install the shaft (1).
(f)
Make sure that the play at the torque link hinges is correct (Ref. TASK 32-21-00-200-003).
(g)
Do the torque procedure on the nut (6) 1 Apply a layer of SPECIAL MATERIALS (Material No. 05-047) to
_ the washer (5) and install it on the shaft (1).
2 Apply a layer of SPECIAL MATERIALS (Material No. 05-047) to
_
the threads of the nut (6) and install it.
3 TORQUE the nut (6) to 9 m.daN (66.37 lbf.ft) and loosen the
_
nut (6). Do this three times.
4 Loosen the nut (6) to get a clearance between 0.02 mm (0.0007 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3(114)
