(5)
Set the rudder to 0-unit of trim.
S 862-086
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747-400 MAINTENANCE MANUAL
D. Rollout Power Control Package Test
S 742-087
(1) Do this task: Ground Test - XDUCER OUTPUTS (AMM 22-10-00/501).
NOTE: Only do a check on the rudder surface position.
____
(a) Make sure that the values for the left, center, and right channels are between -0.6 and +0.6 degree.
S 742-088
(2)
Do this task: Ground Test - Rudder Servo (AMM 22-10-00/501).
S 792-073
(3)
Do these steps for the component leak check:
(a)
Set the FLT CONTROL HYD POWER TAIL 1, 2, 3, and 4 to the SHUTOFF position. These switches are on the Pilots' Overhead Maintenance Panel, P461.
(b)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
1) P180, DC Power Distribution Panel a) 180E7, ELEV/RUD VLV SYS 2 b) 180E22, ELEV/RUD VLV SYS 4 c) 180H8, ELEV/RUD VLV SYS 1 d) 180H23, ELEV/RUD VLV SYS 3
(c)
Visually examine the RPCP to make sure that there are no hydraulic leaks.
(d)
Make the correction if it is necessary.
E. Put the Airplane Back to Its Initial Condition
S 862-074
(1) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a) P180, DC Power Distribution Panel
1) 180E7, ELEV/RUD VLV SYS 2
2) 180E22, ELEV/RUD VLV SYS 4
3) 180H8, ELEV/RUD VLV SYS 1
4) 180H23, ELEV/RUD VLV SYS 3
S 412-078
(2)
Install the access panels 324EL, 324FR, and 324FL
(AMM 06-09-07/201).
(3)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
S 862-077
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747-400
MAINTENANCE MANUAL
ROLLOUT POWER CONTROL PACKAGE MECHANICAL LINKAGE AND OVERRIDE MECHANISM -
__________________________________________________________________________ INSPECTION/CHECK
________________
1. General_______
A. This procedure contains two tasks. The first task is for the visual inspection of the rollout power control package (RPCP) mechanical linkage and override mechanism. The second task is for the full inspection of the RPCP mechanical linkage and override mechanism.
B. In the first task, you do not have to remove the RPCP mechanical linkage and override mechanism . In the second task, you have to remove the RPCP mechanical linkage and override mechanism for a full inspection of the worn areas. Usually you use the second task when you do the overhaul of the RPCP mechanical linkage and override mechanism.
TASK 22-13-04-206-017
2. RPCP Mechanical Linkage and Override Mechanism Visual Inspection________________________________________________________________
A. General
_______
(1) This procedure is for a visual inspection of the RPCP mechanical linkage and override mechanism. In this procedure, you do not have to remove the RPCP mechanical linkage or the override mechanism if it is not necessary.
B. References
(1)
AMM 06-09-07/201, Fin and Rudder Access Doors and Panels
(2)
AMM 29-11-00/201, Main Hydraulic Supply System
C. Access
(1)
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本文链接地址:747-400 AMM 飞机维护手册 空调 AUTO FLIGHT(128)