(b)
Lubricate the rudder hinges.
S 643-009
(2) If a special grease gun is not available, do these steps to
lubricate the rudder hinges with the standard grease gun:
(a)
Get access to rudder hinge points from the right side of the rudder. 1) Remove the hinge covers.
(b)
Lubricate the rudder hinges.
G. Put the Airplane Back to Its Usual Condition
S 863-010
(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 863-011
(2)
Set the FLT CONTROL HYD POWER - TAIL switches No. 1, 2, 3, and 4 on the Pilot's Overhead Maintenance Panel, P461, to NORM.
(3)
Do this task: "Remove Electrical Power" (Ref 24-22-00/201).
(4)
Close the access panels (Ref 06-09-07/201).
S 863-014
S 413-015
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
12-21-17
ALL ú ú 03 Page 306 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
TASK 12-21-17-643-054
3. Upper Rudder Actuators Lubrication__________________________________
A. Standard Tools and Equipment
(1) Grease gun
B. Consumable Materials
(1)
D00633 Grease - BMS 3-33 (Preffered).
(2)
D00013 Grease - MIL-G-23827 (Optional).
C. References
(1)
06-09-07/201, Fin and Rudder Access Doors and Panels
(2)
24-22-00/201, Manual Control
(3)
29-11-00/201, Main Hydraulic Supply System
D. Access
(1)
Location Zone 324 Vertical Fin, Rear Spar to Trailing Edge
(2)
Access Panel
324HL Inspection Access Panel
E. Prepare for the Lubrication
S 863-044
(1)
Do this task: "Supply Electrical Power" (AMM 24-22-00/201).
S 863-045
(2)
Remove hydraulic power from all four hydraulic systems (AMM 29-11-00/201).
S 863-046
(3)
Set the FLT CONTROL HYD POWER - TAIL switches No. 1, 2, 3, and 4 on the Pilot's Overhead Maintenance Panel, P461, to SHUTOFF.
S 863-047
(4)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(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
5) 180H8 ELEV/RUD VLV SYS 1
6) 180H23 ELEV/RUD VLV SYS 3
S 863-048
(5) Open these access panels 324HL (upper rudder) (AMM 06-09-07/201).
F. Lubricate the Upper Rudder Actuators
S 643-049
(1) Lubricate the end of the actuator control rods that is connected to the rudder.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
12-21-17
ALL ú ú 04 Page 307 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
G. Put the Airplane Back to Its Usual Condition
S 863-050
(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
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊 SERVICING 2(51)
