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22-11-02
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A
747-400 MAINTENANCE MANUAL
AUTOPILOT DISENGAGE SWITCH - REMOVAL/INSTALLATION
_________________________________________________
1. General_______
A. This procedure contains two tasks. The first task is for the removal of the autopilot disengage switch. The second task is for the installation of the autopilot disengage switch.
B. You can find the two autopilot disengage switches (S282 and S283) on each outboard horn of the pilots' control wheel. The switch is a single-action, multiple pole, pushbutton type. A switch plate holds the switch in position on the control wheel.
TASK 22-11-03-004-027
2. Remove The Autopilot Disengage Switch (Fig. 401)_____________________________________
A. Special Tools and Equipment
(1) Insertion and Extraction Tool (Commercailly Available)
B. Standard Tools and Equipment
(1) Threading Wire - 30-inch length of standard wire (No. 18 to 22 gage), without insulation if possible.
C. References
(1) IPC 27-31-04, Fig. 3
D. Access
(1) Location Zones
221 Control Cabin, LH
222 Control Cabin, RH
E. Remove the Autopilot Disengage Switch
S 864-028
(1) Open these circuit breakers and attach the DO-NOT-CLOSE tags:
(a) P7 Overhead Circuit Breaker Panel
1) 7D7, FLT CONT CMPTR SERVO L
2) 7D8, FLT CONT COMPTR PWR L
3) 7D12, FLT CONT CMPTR SERVO C
4) 7D13, FLT CONT CMPTR PWR C
5) 7D14, FLT CONT CMPTR SERVO R
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
1. SWITCH DISENGAGE AUTOPILOT 2. PLATE SWITCH 3. SCREW 4. CONTROL COLUMN
5. CONTROL WHEEL
6. (4 SCREW-TYPE CONNECTIONS) TERMINAL BLOCK
TERMINAL BLOCK INSULATOR
STAB TRIM AND AUTOPILOT WIRE CONNECTIONS (JIFFY JUNCTION MODULES) 7. APPROACH PLATE MEDALLION AND
WIRE BUNDLE
Autopilot Disengage Switch Removal/Installation
Figure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
6) 7D15, FLT CONT CMPTR PWR R 7) 7E9, MCP L 8) 7E18, MCP R 9) 7E24, AUTO FLT WARN
S 024-053
(2) Do the steps that follow to remove the autopilot disengage switch:
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本文链接地址:747-400 AMM 飞机维护手册 空调 AUTO FLIGHT(80)