NOSE UP.
(i)
Push the bypass valve switch on the left STCM. 1) Hold the bypass valve switch in this position. 2) Hold the STAB TRIM switches on the first officer's control
wheel to the NOSE UP position for ten seconds. 3) Make sure that there is no movement of the ballscrew. 4) Release the bypass valve switch.
S 735-050
(5)
Do a test of the right hydraulic brake:
(a)
Set the STAB TRIM 3 switch to CUTOUT and the STAB TRIM 2 switch to ON.
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(b)
Push the bypass valve switch on the right STCM. 1) Hold the bypass valve switch in this position. 2) Hold the STAB TRIM ALTN switches to the APL NOSE UP
position for ten seconds. 3) Make sure that there is no movement of the stabilizer ballscrew. 4) Release the bypass valve switch.
(c)
Hold the STAB TRIM ALTN switches to the APL NOSE DN position for five seconds. 1) Make sure the stabilizer position indicators move to APL
NOSE DN.
(d)
Hold the STAB TRIM ALTN switches to the APL NOSE UP position for five seconds. 1) Make sure the stabilizer position indicators move to APL
NOSE UP.
(e)
Push the bypass valve switch on the right STCM. 1) Hold the bypass valve switch in this position. 2) Hold the STAB TRIM switches on the captain's control wheel
to the NOSE UP position for ten seconds. 3) Make sure that there is no movement of the stabilizer ballscrew. 4) Release the bypass valve switch.
(f)
Hold the STAB TRIM switches on the captain's control wheel to the NOSE DN position for five seconds. 1) Make sure the stabilizer position indicators move to APL
NOSE DN.
(g)
Hold the STAB TRIM switches on the captain's control wheel to the NOSE UP position for five seconds. 1) Make sure the stabilizer position indicators move to APL
NOSE UP.
(h)
Push the bypass valve switch on the right STCM. 1) Hold the bypass valve switch in this position. 2) Hold the STAB TRIM switches on the first officer's control
wheel to the NOSE UP position for ten seconds. 3) Make sure that there is no movement of the ballscrew. 4) Release the bypass valve switch.
S 865-051
(6)
Set the STAB TRIM 2 and 3 switches on the control stand to AUTO.
(7)
Close the access door 312A (AMM 06-09-05/201).
S 865-053
(8)
If the hydraulic power is not necessary, do this task: "Remove Hydraulic Power" (AMM 29-11-00/201).
S 415-052
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S 865-055
(9) If the electrical power is not necessary, do this task: "Remove Electrical Power" (AMM 24-22-00/201).
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STABILIZER TRIM/RUDDER RATIO MODULE - REMOVAL/INSTALLATION
__________________________________________________________
1. General_______
A. There are two tasks in this procedure. There is one task for the removal and one task for the installation of the Stabilizer Trim/Rudder Ratio Module (SRM). The procedure has these parts:
(1)
An optional check for shop faults
(2)
The removal of the SRM
(3)
The installation of the SRM
(4)
A ground test of the SRM.
B. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 3(139)
