A320飞机维护手册 AMM STANDARD PRACTICES-AIRFRAME(40)

曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者

(f) When you install the hose assembly supports, make sure that they
 do not cause distortion of the rigid lines (this can occur when
R  the lines and hoses move in relation to each other). Use a
R  correct number of clamps so that the routing of the lines along
R  the contour of the structure is correct. This prevents abrasive wear, kinks and entanglement during flexure. You must install
 clamps, at a minimum, at locations where the tube clamps were. R You must not attach hoses around their outer diameters with R tight, rigid clamps which prevent all movement. Some hoses R between rigid connections must move longitudinally. In this R condition, use clamps of a type which will not cause wear on the R hose casing. You must attach the connections at the tube, not at R the hose.
 NOTE : When the lines have rigid tubes, wind Teflon tape around
____ the hose after protection.
 (5) Install the applicable fittings on the ends of the tubes to connect R the flexible hose assembly. Obey the installation instructions R related to the flexible hoses. Make sure that the fittings you must R install on the tubes are applicable to the fittings on the flexible R hose assembly. For MS21922 sleeve installation, refer to the repair R procedure with an MS21922 sleeve in this task.
 Subtask 20-23-11-917-087
 C. Temporary repair of a titanium tube with H-fitting
R NOTE : A temporary repair with an H-fitting has a life limit of 20
____ R takeoffs. You must do a visual inspection of the temporary repair after each flight.

R  (1) Use the applicable fitting (refer to the H-fitting Dimensions and 
R  Part Numbers Table). 
R  (Ref. Fig. 240/TASK 20-23-11-991-030) 
R  NOTE : Each fitting is supplied in a plastic bag which also contains____ 
R  a positioning template and tape. 
R  (2) Installation procedure for SIERRACIN/HARRISON H-fittings. 
R  (Ref. Fig. 241/TASK 20-23-11-991-031) 
R  NOTE : You can repair defects or chafing areas that are less than or____ 
R  equal to 9.52 mm (0.3748 in.) across. You must splice defects 
R  that are larger. The minimum dimension that you can splice is 
R  114.3 mm (4.5000 in.). 
R  (a) Cut and deburr the damaged tubing. 
R  NOTE : The maximum distance between the ends of the tubes is 6.35____ 
R  mm (0.2500 in.). 
R  (b) Carefully clean the ends of the tube with CLEANING AGENTS 
R  (Material No. 11-003). 
R  Make sure that the tube I.D. and O.D. are clean. 
R  (c) Use the template to find the position of the tape (2) on the tube 
R  at 14.22 +0.5 -0 mm (0.5598 +0.0196 -0.0000 in.) from the end of 
R  the tube. 
R  (d) Find the tube insertion mark at 36.6 +0 -0 mm (1.4409 +0.0000 -
R  0.0000 in.) from the other end of the tube. 
R  (e) Wind on only one layer of tape (5). Cut off the unwanted tape. 
R  (f) Put the union (2) in position against the tape (5). 
R  (g) Engage the slide (4) on the tube. The rounded end of the slide 
R  must be against the union (2). 
R  (h) Engage the nut (1) on the slide (4) side. 
R  (i) Engage the coupling (3) on the union (2) side. 
R  (j) Engage the nut (1) in the coupling (3) and tighten it with the 
R  union (2) against the tape (5). 
R  (k) Hold the coupling end. Do not turn the coupling (3).

 

R  (l) Tighten the nut (1) until you feel a high torque. This occurs
R  when the slide (4) and the coupling (3) close tightly against the union (2).
 (m)
 Make sure that you can see the insertion mark on the tube.

 (n)
 Remove the nut (1). Make sure that the slide (4) and the coupling

 (3) are between 3.8 mm (0.1496 in.) and 0 mm (0.0000 in.) from the shoulder of the union. If not, tighten the nut (1) until the slide (4) and the coupling (3) are in the correct position.

 (o)
 The union (2) must touch the tape (5).

 (p)
 The edge of the coupling (3) must be across the mark on the tube.

 (q)
 Tighten the assembly to complete the swaging procedure.

 5. Close-up
________
 Subtask 20-23-11-860-064
 A. Put the aircraft back to its initial configuration.
 (1)
 Pressurize the hydraulic reservoirs (Ref. TASK 29-14-00-614-002).

 (2)
 If necessary, fill the hydraulic reservoirs:

 -with a hand pump (Ref. TASK 12-12-29-611-001) R - or with a hydraulic cart (Ref. TASK 12-12-29-611-002).
　
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 STANDARD PRACTICES-AIRFRAME(40)