(a)
Install the bolt (12) with the head outboard, the washer (13), and the nut (14).
(b)
Tighten the nut (14).
S 434-031
(12)
Connect the input control rod (38) of the inboard elevator position transmitter to the inboard elevator front spar.
(a)
Install the screw (39), the washer (40), and the nut (41).
(b)
Tighten the nut (41).
S 214-032
(13)
Examine for the seal clearance at the elevator interface areas.
(a)
Replace the seal if it is a damaged part.
S 864-034
(14)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P7, Overhead Circuit Breaker Panel
1) 7E6, STAB TRIM L CONT
2) 7E7, STAB TRIM L S/O VLV
3) 7E8, STAB TRIM L RATE
4) 7E19, STAB TRIM R CONT
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-31-01
ALL ú ú 01 Page 413 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
5) 7E20, STAB TRIM R S/O VLV
6) 7E21, STAB TRIM R RATE
7) 7E23, STAB TRIM ALTN CONT
(b) 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) 180E23, ELEV/RUD VLV SYS 3
S 864-036
(15)
Set all FLT CONTROL HYD POWER TAIL switches on the P461 Pilots' Overhead Maintenance Panel in NORM.
S 864-058
(16)
Set the STAB TRIM 2 and 3 switches on the control stand to ON.
S 834-057
(17)
Adjust the inboard elevator (AMM 27-31-00/501).
S 834-045
(18)
Adjust the inboard elevator position transmitter (AMM 27-38-00/501).
S 714-056
(19)
Do the Inboard Elevator Movement Test in the Operational Test -Elevator Control System (AMM 27-31-00/501).
S 644-050
(20)
Lubricate the inboard elevator (AMM 12-21-18/301).
S 414-053
(21)
Install these access panels (AMM 06-09-06/201):
(a)
334HB or 344HB
(b)
335BB, 335DB and 335JB or 345BB, 345DB and 345JB
S 094-054
(22) Remove the safety device from the receptacle on the top surface of the horizontal stabilizer.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-31-01
ALL ú ú 03 Page 414 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 864-055
(23) Remove external power from the AC buses if it is not necessary (AMM 24-22-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-31-01
ALL ú ú 01 Page 415 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
OUTBOARD ELEVATOR - REMOVAL/INSTALLATION
________________________________________
1. General_______
A. There are two outboard elevators, one on each side of the airplane. The outboard elevator is attached to the rear spar of the horizontal stabilizer by six hinge points. They are controlled by the control column, and moved by a power control package (PCP).
B. There are two tasks in this procedure. There is one task for the removal and one task for the installation of the outboard elevator. The procedure has these parts:
(1)
The preparation for the removal of the outboard elevator
(2)
The removal of the outboard elevator
(3)
The installation of the replacement outboard elevator
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 飛行操縱 FLIGHT CONTROLS 3(33)
