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S 034-068 WARNING: HOLD THE SERVO WHEN THE BOLTS AND THE WASHERS THAT ATTACH THE _______ SERVO TO THE AIRPLANE ARE REMOVED. THE SERVO ASSEMBLY WEIGHS 17 POUNDS. IF THE SERVO ASSEMBLY FALLS ON A PERSON INJURY CAN OCCUR. (8) Remove the bolts (7) and the washers (6) from the servo unit.
(9) Remove the servo from the airplane structure.
(10) Put caps on the hydraulic lines.
TASK 22-13-03-404-015 3. Install the Autopilot Lateral Control Servo (Fig 401)___________________________________________ A. Equipment (1) Rig Pins from Set B20003-XX (Ref 20-10-24)
(a) A1-P/N B20003-27
(b) A2-P/N B20003-27
(2) Voltmeter, Phase Synchronous Model 101A kit -101AC5 Electronic Aviation Systems 300 Airport Way Renton, WA 98005 (Required when not using MCDP for rigging)
(a) Voltmeter, Phase Synchronous
(b) Adapter Cable Assemblies 1014002-1, -5
B. Consumable Materials (1) D00148 Hydraulic Fluid - fire resistant, BMS 3-11 C. Parts EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
22-13-03 ALL ú ú 02 Page 404 ú Jan 28/02 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. A
757 MAINTENANCE MANUAL ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Lateral Servo Assembly | 27-11-14 | 02 | 110 | | | 2 | Bolt | | | 10 | | | 3 | Washer | | | 20 | | | 4 | Nut | | | 25 | | | 5 | Control Rod Assembly | | | 60 | | | 6 | Washer | | | 100 | | | 7 | Bolt | | | 95 | | | 8 | Filter | 22-11-51 | 01 | 265 | | | 9 | Packing | | | 260 | | | 10 | Reducer | | | 255 | | | 11 | Packing | | | 275 | | | 12 | Union | | | 270 | | | 13 | Jamnut | 27-11-14 | 02 | 65 | 2.......….......…...................................…...........….......…......1 D. References (1) 20-10-24/201, Rig Pins
(2) 20-30-04/201, Lubricants
(3) 22-00-02/201, Autoflight BITE
(4) 24-22-00/201, Electrical Power - Control
(5) 29-11-00/201, Pressurize/Depressurize Main Hydraulic System
E. Access (1) Location Zones 732/742 Main Landing Gear Body Door
(2) Access Panels 732/742 Main Landing Gear Body Door
F. Install the servo. S 434-016 (1) Install rig pins A1 and A2 if they are not installed. EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
22-13-03 ALL ú ú 04 Page 405 ú May 28/01 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. A
757 MAINTENANCE MANUAL
(2) S 034-017Remove the caps from the hydraulic lines. (3) S 434-018Put the servo in position and install the bolts (7) and the washers (6) by hand. (4) S 434-019Connect the hydraulic lines and tighten the fittings by hand. (5) S 434-020Tighten the servo bolts (7). (6) S 434-021Tighten the hydraulic line fittings. (7) S 434-022Install the jamnut (13) onto the rod end on the servo output crank. (8) S 434-023Adjust the rod end on the autopilot crank end of the control rod to 1.34 to 1.36 inches. Refer to Fig. 401, item C. (a) Tighten the jamnut. (9) S 434-024Put the control rod assembly (5) onto the servo output crank rod end. S 824-025
(10) Adjust the output crank end of the control rod nominal length to 1.34 to 1.36 inches. NOTE: The nominal length is used to reduce the amount of adjustment
____ required to adjust the servo to null. (a) Tighten the jamnut (13). EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 自动飞行 AUTOFLIGHT 2
