S 964-040
 (9)  If there is wear in the shear rivets, then remove the lever assembly.
 (a)  Remove nut(s), bolt(s), washer(s), that attach to the rod assemblies.
 S 034-010
 (10)
 Remove the mounting bolts, washers, and nuts that hold the actuator.

 S 024-011

 (11)
 Remove the actuator.

 S 034-012

 (12)
 Remove the reducers from the ports on the actuator.  Seal the ports with plugs. Keep the reducers.

 TASK 22-11-26-404-013
 3.  Install the Autopilot Elevator Actuator (Fig. 401)_______________________________________
 A. Consumable Materials
 (1)  D00148 Fluid - Hydraulic, Fire Resistant, BMS 3-11,
 Type IV, Class 1

 B. References
 (1)  
12-31-41/201, Body Section 48 Access Doors and Panels

 (2)  
AMM 22-11-26/501, Autopilot Elevator Actuator

 (3)  
24-22-00/201, Manual Control

 (4)  
27-31-00/201, Elevator and Tab Control System

 (5)  
29-15-00/201, Hydraulic Systems A, B, and Standby

 (6)  
OHM 27-09-05, Lever Assembly, Aileron/Elevator Autopilot Actuator Shear

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
 C.
D.
E.

A
737-300/400/500MAINTENANCE MANUAL
Access
 (1)  Location Zone 704 Tail  Cone
 (2)  Access 3801/3802  Tail Cone Access Door

Prepare for the Installation
 S 864-014
 WARNING: ISOLATE OR TAG THE AILERON, ELEVATOR, RUDDER, SPOILER AND SPEED
_______ BRAKE CONTROL SYSTEMS. THESE SYSTEMS MAY MOVE SUDDENLY WHEN YOU REMOVE THE HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  
Make sure that you remove the hydraulic pressure from the elevator hydraulic systems A and B (Ref 27-31-00/201).

 S 864-015

 (2)  
Make sure that you open these circuit breakers and attach the DO-NOT-CLOSE tags:

 (a)  
P6 Circuit Breaker Panel 1) AUTO FLT CONT SYS B MACH TRIM AC 2) AUTO FLT CONT SYS B MACH TRIM DC 3) AFDS MCP CRS-2 4) AUTO FLT CONT SYS B SNSR EXC AC 5) AUTO FLT CONT SYS B FCC DC 6) AUTO FLT CONT SYS B ENGAGE INTLK B 7) AUTO FLT CONT SYS B WARN LIGHT BAT

 (b)  
P18 Circuit Breaker Panel 1) AUTO FLT CONT SYS A MACH TRIM AC 2) AUTO FLT CONT SYS A MACH TRIM DC 3) AFDS MCP DC 4) AIRPLANES WITH MECHANICAL AILERON FORCE LIMITER;

 AFDS AIL FORCE LIM 5) AUTO FLT CONT SYS A SNSR EXC AC 6) AUTO FLT CONT SYS A FCC DC 7) AUTO FLT CONT SYS A ENGAGE INTLK A 8) AUTO FLT CONT SYS A WARN LIGHT BAT
 S 014-016
 (3)  Make sure that you remove the access door, 3801 or 3802, of the tail
 cone (Ref 12-31-41/201).Procedure
 S 434-017
 (1)  Lightly lubricate the new O-ring on the reducers with hydraulic fluid. Install the reducers in the ports on the actuator.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 614-018
 (2)  
Make sure that you fill the actuator with hydraulic fluid. Seal the reducers with plugs.

 S 424-019

 (3)  
Hold the actuator in position and install the mounting bolts, washers, and nuts.

 NOTE: Make sure that the countersunk side of the washer is against
____
 the head of the bolt.

 S 434-022
 (4)  Place the lever assembly on the actuator and carefully align the splines.
 NOTE: The position of a tooth not on the spline provides the
____
 access.

 S 434-041
 (5)  
If you removed the lever assembly from the rod assembly, then install the bolt(s), washer(s), and nut(s), that attach the lever assembly to the rod assemblies.

 S 434-023

 (6)  
Install the clamp-bolt, washer, and nut to attach the lever assembly to the actuator, then install the washer and nut on the output shaft of the actuator. Tighten the nut on the output shaft, and then tighten the clamp-bolt.
　
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