A319 A320 A321 飞机维护手册 AMM Aircraft Maintenance Manual 12_部分5.pdf400页

(10) Pre-bend the single leg of the new tab-washers (5) 23350CA040 as shown in the figure. ____ NOTE : This will assist in the installation and safety procedure of the tab-washers. (11) Put the clamp (4) in position and install the tab-washers (5) and the screws (6). (12) TORQUE the screws (6) to between 0.09 and 0.11 m.daN (7.96 and 9.73 lbf.in). (13) Bend the two legs of the tab-washers (5) to secure the screws (6). Subtask 21-51-13-865-052 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 49HH, 50HH, 51HH, 52HH, 53HH, 54HH, 55HH, 56HH. Subtask 21-51-13-710-050 C. Test (1) Do the pre-conditioning through the HP ground connector (Ref. TASK 12-33-21-618-001) or with the APU (Ref. TASK 12-33-21-618-001). (2) Do a leak check at the sensor flange (12) and the sensor mount (11). ____ NOTE : Leaks are not permitted. (3) After approx. 15 minutes stop the pre-conditioning (Ref. TASK 12-3321-618-001) or (Ref. TASK 12-33-21-618-001). (4) Do the operational test of the flow control and indicating system (Ref. TASK 21-51-00-710-002).

R

EFF : CES

401-499,

21-51-13

Page 408 Aug 01/05


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