(3) Connect the primary lower attachment of the THS actuator (1) (Ref. Fig. 406/TASK 27-44-51-991-005)
(a)
Remove the adhesive tape which temporarily safetied the sliding bushes (77) and the shoulder bushes (78) in the nut assy (2).
(b)
Make sure that the sliding bushes (77) and the shoulder bushes
(78)
are correctly installed in the nut assembly (2).
(c)
Put the nut assembly (2) in position at the attachment arms (4).
(d)
Push the sliding bushes (77) in the direction of the screwshaft centerline.
(e)
Put the distance bushes (76) into the installation nuts of the spherical bearings installed in the attachment arms (4).
(f)
Put the bolts (69) in the forks of the nut assembly (2).
(g)
Move the THS actuator (1) into a position so that both forks of the nut assembly (2) overlap the attachment arms (4).
(h)
Push the sliding bushes (77) against the inner ring of the spherical bearings in the attachment arms (4).
NOTE : Use the SUPPORT STRUT - R/I THS ACTUATOR (98D27407502000)
____ and move the THS to get the necessary alignment of the sliding bushes (77) and the spherical bearings.
(i) Install the primary bolts (75) at the connection of the nut assembly (2) and the attachment arms (4).
NOTE : Make sure that the primary bolts (75) have been installed
____ with the flats on the flanges in the horizontal direction.
(j) Install the new retainer washers (73) and the retainer nuts (72) on the primary bolts (75).
R NOTE : Make sure that the rounded edges of the retainer nuts (72)
____ R point to the retainer washers (73) R (Ref. Fig. 406/TASK 27-44-51-991-005)
(k) Tighten the primary bolts (75). 1 Put the wrench 98D27407517120, part of the TOOL SET - R/I THS
_ (98D27407517000), on the retainer nuts (72).
2 Hold the primary bolts (75) with a wrench.
_ 3 TORQUE the retainer nuts (72) to between 4.0 and 5.0 m.daN
_ (29.49 and 36.87 lbf.ft).
4 Remove the wrenches from the primary bolts (75) and the
_
retainer nuts (72).
(l)
Safety the retainer nuts (72) with the new retainer washers (73).
(m)
Install the secondary bolts (74) through the primary bolts (75). NOTE : Make sure that the secondary bolts (74) have been
____ installed with the flats on the flanges in the horizontal direction.
(n)
Install the new retainer washers (71) and the retainer nuts (70) on the secondary bolts (74).
R NOTE : Make sure that the rounded edges of the retainer nuts (70)
____ R point to the retainer washers (71) R (Ref. Fig. 406/TASK 27-44-51-991-005)
(o) Tighten the secondary bolts (74). 1 Put the wrench 98D27407517110, part of TOOL SET - R/I THS
_ (98D27407517000), on the retainer nuts (70).
2 Hold the secondary bolts (74) with a wrench.
_ 3 TORQUE the retainer nuts (70) to between 3.0 and 4.0 m.daN
_
(22.12 and 29.49 lbf.ft). 4 Remove the wrenches from the secondary bolts (74) and from the
_
retainer nuts (70).
(p)
Safety the retainer nuts (70) with the new retainer washers (71).
(q)
Put the left and the right anti-rotation brackets (68) in position at the connections of the nut assembly (2) and the bolts (69),(74),(75).
(r)
Install the nuts (66).
(s)
Safety the nuts (66) with new cotter pins (65).
(4)
Connect the mechanical system link-plate (29) to the input lever (30) of the THS actuator (1) (Ref. Fig. 402/TASK 27-44-51-991-002)
(a)
Put the link-plate (29) in position at the input lever (30).
(b)
Install the bolts (40), the washers (39) and the nuts (38). NOTE : If you cannot install the bolts (40) easily, adjust the
(c)
TORQUE the nuts (38) to 0.8 m.daN (70.79 lbf.in) .
(d)
Safety the nuts (38) with new cotter pins (37).
(5)
Connect the electrical connections to the THS actuator (1) (Ref. Fig. 403/TASK 27-44-51-991-003)
____ mechanical control system (Ref. TASK 27-41-00-820-001).
(a) Remove the blanking caps from the electrical connectors:
-9CE-A, 9CE-B, 9CE-C, 9CE-D (51),
-9CE-E, 9CE-F (49),
-9CE-G, 9CE-H (53).
(b)
Remove the blanking caps from the electrical connections of the RVDT (50),(54) and the pitch-trim actuator (52).
(c)
Connect the electrical connectors 9CE-G and 9CE-H (53) to the monitor RVDT (54).
(d) 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 FLIGHT CONTROLS 飞行操纵3(152)
