747-400 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 1(113)

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 (5)  S 832-055Set the aileron trim system at the center to keep the aileron at the neutral position: (a) Operate the trim switches and move the control wheel until you can easily install rig pin A/S-2.
 (6)  S 862-007Move the speed brake control lever to the DOWN position.
 (7)  S 862-008Move the FLT CONTROL HYD POWER WING switches No. 1, 2, 3 and 4 on the P461 Pilot's Overhead Maintenance Panel to SHUTOFF.
 (8)  S 862-010For the applicable system, open these circuit breakers and attach DO-NOT-CLOSE tags: (a) P180 DC Power Distribution Panel 1) 180H7 LATERAL CONT VALV SYS 1 2) 180E6 LATERAL CONT VALV SYS 2 3) 180H22 LATERAL CONT VALV SYS 3 4) 180E21 LATERAL CONT VALV SYS 4

 S 862-011
 (9)  
Do this task: "Hydraulic System Depressurization" (AMM 29-11-00/201).

 S 862-012

 (10)
 If it is not necessary to have electrical power on, do this task: "Electrical Power Removal" (AMM 24-22-00/201).

 S 862-013

 (11)
 For applicable system, open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P7 Overhead Circuit Breaker Panel 1) 7E24 AUTO FLT WRN 2) 7D7 FLT CONT CMPTR SERVO L

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 3) 7D8 FLT CONT CMPTR PWR L 4) 7D12 FLT CONT CMPTR SERVO C 5) 7D13 FLT CONT CMPTR PWR C 6) 7D14 FLT CONT CMPTR SERVO R 7) 7D15 FLT CONT CMPTR PWR R
 E. Procedure
 S 022-014
 (1) Remove the central lateral control package (CLCP) (Fig. 201):
 NOTE: You can remove the section of the APU pneumatic duct
____ that is in your way for ease access to the CLCP.
 (a)  
Disconnect the upper piston clevis from the spoiler differential mechanism.

 (b)  
Disconnect the lower piston clevis from the rod to the aileron programmer.

 (c)  
When you remove the left CLCP (left autopilot), located in the right wheel well, continue as follows: 1) Remove rig pin A/S-2. 2) Turn the control wheel clockwise until the actuator piston

 clevis bolt is clear of the programmer. 3) Remove the bolt. 4) Turn the control wheel counterclockwise. 5) Install rig pin A/S-2.

 (d)  
Disconnect the control rod from the actuator input lever.

 (e)  
Disconnect the load limiter rod between the right and left CLCPs.

 (f)  
Disconnect the electrical connectors DB7084 (CLCP-left autopilot) and DB7086 (CLCP-right autopilot).

 (g)  
With the removal of pressure in the hydraulic system, operate the CLCP input lever to fully bleed the system.

 (h)  
Disconnect the hydraulic hoses from the CLCP pressure and return ports.

 (i)  
Install caps on the disconnected hoses and the CLCP ports.

 (j)  
Use a hoist and a strap to remove the mounting bolts and the CLCP.

 TASK 27-11-08-402-015
 3. Central Lateral Control Package Installation
____________________________________________
 A. Special Tools and Equipment
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
 B.
C.
D.
E.
A
747-400 MAINTENANCE MANUAL
 (1)  
PF51-009-1 Fishpole Hoist, Pneumatic Powered (Preferred) (PF Industries, 151 South Michigan, Seattle, WA 98108 Tel: (206) 762-0200).

 (2)  
PF51-003-1 Fishpole Hoist, Manual (Optional) (PF Industries, 151 South Michigan, Seattle, WA 98108 Tel: (206) 762-0200).

 (3)  
Lifting Strap, (Commercially Available), (Recommended)

 (4)  
OHME65B81114-1 Lifting Strap (Alternative)

 (5)  
G12001-50 Rig Pin Kit

 (6)  
Phase Synchronous Voltmeter - Model 101A, Electronic Aviation Systems, Inc., P.O. Box 1388, Raccoon Point Road, Eastsound, WA 98245 USA

Consumable Materials

 (1)  
D00054 Skydrol Assembly Lube - MCS 352
　
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